30th week of 2015 patent applcation highlights part 27 |
Patent application number | Title | Published |
20150204150 | APPARATUS AND METHODS FOR USE WITH DRILLING FLUIDS - A method for facilitating a downhole cutting operation comprises providing a drilling fluid conditioning device in a surface portion of a tubular string providing mounting for a cutting tool on a downhole portion of the string. Initially, drilling fluid is circulated through the conditioning device and the tubular string to condition the drilling fluid. The drilling fluid conditioning device is then removed from the string and the conditioned drilling fluid circulated through the tubular string and the cutting tool. | 2015-07-23 |
20150204151 | Optimization Of Vacuum System And Methods For Drying Drill Cuttings - Systems and methods for separating fluids from drill cuttings. Specifically, the invention relates to shakers that incorporate a vacuum system and methods of operating such systems to effect a high degree of fluid separation. The system and methods are effective across a variety of screen sizes, vacuum flows and vacuum designs. | 2015-07-23 |
20150204152 | METHOD FOR DRILLING HOLES IN SOIL OR ROCK MATERIAL AND FOR FIXING AN ANCHOR IN A BOREHOLE AND APPARATUS THEREFOR - For drilling holes in soil or rock material and for fixing an anchor in a borehole, an expanding element fixed to a drill or anchor rod and a spreading element are introduced with the rod into the soil or rock material, the spreading element is expanded to butt against the wall of the borehole after completion thereof by the rod. The expanding element being retracted into the spreading element. The rod is secured by an anchor plate on an outer side of the borehole. After expansion of the spreading element, the rod is subjected to a rotary movement in the direction of the interior of the borehole until there is abutment with the interior of the borehole. The rod is fixed to the outside of the borehole by bracing the anchor plate by means of a nut. | 2015-07-23 |
20150204153 | Change-Over Arrangement for a Cable Operated Jar - A cable-operated jar comprising a releasable coupling is arranged for connection to a piece of downhole equipment, in which a mandrel is connected to a cable comprising a hammer section. The hammer section is arranged to strike, on the release of a mandrel coupling, against a shoulder section in a housing, and the mandrel is pre-tensioned in a releasable position with a spring arrangement. The spring arrangement includes an adjusting, mechanism operated by the cable alternately being tensioned and relaxed. | 2015-07-23 |
20150204154 | SEGMENTED LOCKING RING FOR A WELLHEAD - The present disclosure is directed to a locking assembly to attach a quickset casing head of a wellhead assembly to a landing mandrel attached to a surface casing in a drilling operation. A locking ring, comprised of a plurality of arcuate segments, is arranged between the quickset casing head and the landing mandrel. Each of the plurality of arcuate segments is clamped down onto the landing mandrel with a plurality of radially spaced lockdown bolts fastened through the quickset casing head. The clamping enables a seal between the quickset casing head and the landing mandrel without requiring arduous welding. | 2015-07-23 |
20150204155 | DUAL BARRIER OPEN WATER WELL COMPLETION SYSTEMS - A well completion system in accordance with one or more embodiments includes a shallow set barrier installed in an upper completion section of a well, a deep set barrier installed in a lower section of the well, a first sensor disposed to gauge a pressure in a first area between the deep set barrier and the shallow set barrier and a communication device to communicate the gauged pressure. The lower section may be located below a production completion when it is installed in the upper completion section. | 2015-07-23 |
20150204156 | MARINE WELL CONTAINMENT SYSTEM AND METHOD - A system and method for rapidly responding to and regaining control of uncontrolled flow from offshore hydrocarbon wells, that includes a subsea containment assembly, optionally including a capture caisson assembly installed around the assembly, riser systems for production of hydrocarbons to capture vessels on the surface of the sea, and modularized subsystems facilitating communication between and fluid flow from the subsea containment assembly through the riser to the capture vessel. | 2015-07-23 |
20150204157 | SEAL ELEMENT - A sealing element ( | 2015-07-23 |
20150204158 | TEMPERATURE COMPENSATED ELEMENT - A temperature actuated element includes a mandrel, a housing coupled to the mandrel, the housing defining a fluid expansion chamber. A piston is positioned within the fluid expansion chamber. A thermally expanding fluid is positioned within the fluid expansion chamber. An end ring coupled to the piston slides along the mandrel in response to a sliding of the piston. A degradable ring is coupled to the mandrel to prevent movement of the end ring before the degradable ring is dissolved. A packer having a first end and a second end, the first end adapted to slide along the mandrel in response to a sliding of the end ring, and the second end fixedly coupled to the mandrel, so that a sliding of the first end of the packer toward the second end causes the packer element to decrease in length and increase in radius. | 2015-07-23 |
20150204159 | PACKER WITH ANTI-EXTRUSION BACKUP SYSTEM - A well bore packer includes a packer element and an anti-extrusion backup system disposed on a mandrel and located within a well bore wall. Packer element includes longitudinally spaced end regions and a central region. The backup system includes an anti-extrusion device adjacent each of the end regions. The devices each include a collar and a flexible wire mesh mat. The packer element and devices have a smaller diameter configuration before the packer element is expanded. When the packer element is expanded to seal its central region against the well bore wall, the expansion of the packer element activates or deploys the devices and expands the mats to reach between the mandrel and the wall to resist longitudinal extrusion of the packer element. | 2015-07-23 |
20150204160 | Isolation Barrier - An apparatus and method for securing a tubular within another tubular or borehole, creating a seal across an annulus in a well bore, and centralising or anchoring tubing within a wellbore. A sleeve is arranged on a tubular body to create a chamber therebetween. A port provides fluid access through the body to the chamber. A support frame of bow springs on mounts is located within the chamber. When fluid is introduced into the chamber the sleeve is morphed to secure it to a well bore wall, an end of the sleeve will move along the body and compress the frame and bow springs. The compressed springs support the sleeve to maintain a seal between the sleeve and well bore wall to form an isolation barrier. | 2015-07-23 |
20150204161 | METHOD OF IMPROVING CLEANOUT OF A WELLBORE - A barrier onto the surface of a subterranean formation may be formed by pumping into a wellbore within a well hydrophobically modified polysaccharides. A pressure differential is created between the reservoir pressure and formation pressure within the well. The micellular hydrophobically modified polysaccharides self-align onto the face of the formation to form the barrier. Flow of fluids into the subterranean formation is thereby prohibited. | 2015-07-23 |
20150204162 | DIFFERENTIAL SAFETY VALVE - A valve for limiting differential pressure applied to a downhole tool includes a housing and a movable piston/mandrel assembly therein. In a closed position, drilling mud or other fluid may be communicated through a central bore of the valve to the tool. When the differential pressure between the central bore and the wellbore exceeds a first predetermined value, the piston/mandrel assembly moves from a first position obstructing one or more relief ports to a second position not obstructing them, thereby providing a fluid path from the central bore of the valve to the wellbore bypassing the tool and relieving the differential pressure thereacross. When the differential pressure decreases to less than another preselected value, the piston/mandrel assembly returns to its original position again obstructing the relief ports. A trigger mechanism is provided to allow more precise control and separation of the preselected differential pressure values. | 2015-07-23 |
20150204163 | Method and Apparatus for Inserting a Tubular String into a Well - A valve to act as a barrier to fluid movement in a tubular is provided. A flapper in the valve may be opened by application of a selected pressure differential across the flapper. The flapper opens to allow a cylinder to shift and cover the open flapper. A method of placing a tubular string within a well using the valve as an isolation valve to form gas filled chambers for floating the tubular string into the well is also disclosed. | 2015-07-23 |
20150204164 | SLIDING SLEEVE SUB AND METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT - A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in in a pressure tight condition and later is needed to be in an open-port condition. | 2015-07-23 |
20150204165 | APPARATUS AND METHOD FOR CONTINUOUSLY MIXING FLUIDS USING DRY ADDITIVES - An apparatus and system for producing a gel for the treatment of petroleum wells are disclosed herein. The apparatus comprises: a mixing fluid stream, the mixing fluid stream comprising: a mixing fluid inlet for accepting a mixing fluid; a first pump; a dry polymer inlet for accepting a dry polymer; a hydraulic mixer configured and adapted to mix the dry polymer with the mixing fluid to produce a concentrated gel; a dilution fluid stream for diluting the concentrated gel to produce a diluted gel, the dilution fluid stream comprising: a dilution fluid inlet for accepting a dilution fluid; a second pump; and an outlet coupled to the mixing fluid stream. | 2015-07-23 |
20150204166 | APPARATUS AND METHOD OF PREPARING AND DELIVERING A FLUID MIXTURE USING DIRECT PROPPANT INJECTION - An apparatus and method for preparing and delivering a fluid mixture. The apparatus including a high pressure differential solids feeder assembly and a pressurized mixing apparatus. The feeder assembly is coupled to a proppant storage vessel at ambient pressure and receives a continuous unpressurized proppant output flow from the proppant storage vessel. The feeder assembly is configured to output a continuous pressurized proppant output flow of sufficient mass to achieve continuous operation of the apparatus in an uninterrupted episode for an individual fracture stage. The pressurized mixing apparatus is coupled to the feeder assembly and in fluidic communication with the continuous pressurized proppant output flow and a continuous pressurized fracturing fluid flow. The pressurized mixing apparatus is configured to output a continuous flow of a pressurized fluid mixture of a sufficient volume and mass to achieve continuous operation of the apparatus in an uninterrupted episode for the individual fracture stage. | 2015-07-23 |
20150204167 | METHOD AND DEVICE FOR INTERFACING WITH SUBSEA PRODUCTION EQUIPMENT - Generally, the present disclosure is directed to systems and methods for interfacing with subsea production equipment during operation. In one illustrative embodiment, a fluid sealing and transfer element is disclosed that includes, among other things, a flow body having a first end and a second end, a first flow groove ( | 2015-07-23 |
20150204168 | Expandable Screen Completion Tool - An expandable screen comprises a first end comprising a first coupling mechanism, a second end comprising a second coupling mechanism, a wire wrap section extending between the first end and the second end, and a plurality of rods coupled to the wire wrap section. The wire wrap section is coupled to the first and the second end, and the wire wrap section is configured to radially expand. The plurality of rods is configured to control spacing between adjacent wire edges upon radial expansion of the wire wrap section. | 2015-07-23 |
20150204169 | Gas Restrictor for a Horizontally Oriented Submersible Well Pump - A submersible pump assembly has a tubular intake housing containing intake housing ports. A gas restrictor is carried around the intake housing. The gas restrictor is an eccentric sleeve with a semi-cylindrical portion with a centerline coincident with the axis of the pump and extending around an upper portion of the intake housing. A counterweight portion connected with the semi-cylindrical portion has an outboard area farther from the centerline than the semi-cylindrical portion. A weight bar may be mounted to the counterweight portion. The gas restrictor is free to self orient relative to the intake housing due to gravity while the pump assembly is in the horizontal section of the well, with the semi-cylindrical portion overlying and blocking at least some of the intake housing ports on an upper portion of the intake housing. | 2015-07-23 |
20150204170 | SINGLE WELL INJECT-PRODUCE PILOT FOR EOR - Injecting an enhanced oil recovery (EOR) agent into a subterranean formation in at least one injection interval of a hydrocarbon well extending into the subterranean formation, then producing fluid from the formation from at least one production interval of the same hydrocarbon well, and not from a neighboring well. Logging data associated with at least one of the formation, the injected EOR agent and the produced fluid may then be obtained and utilized in assessing effectiveness of the EOR agent injection. | 2015-07-23 |
20150204171 | CARBON DIOXIDE ENERGY STORAGE AND ENHANCED OIL RECOVERY - The present invention is a method and apparatus for the subsurface storage of carbon dioxide in reservoir formations, to provide energy storage for electrical load balancing, and to enable the enhanced recovery of hydrocarbon fluids from the subsurface formations by gravity drainage. Multiple propped vertical inclusions are propagated into hydrocarbon fluid bearing reservoir formations at various vertical depths from well casings. Carbon dioxide is injected and stored in the formations. At off-peak power demand periods, carbon dioxide is pumped by a pump/turbine from the low energy formation into a deeper high energy formation, and at peak power demand periods the carbon dioxide is released from the high energy formation and flows to the low energy formation, driving the pump/turbine to generate electricity. Hydrocarbon fluids are produced from the formations depending on the formation conditions. Additional carbon dioxide is injected into the system as hydrocarbon fluids are extracted. | 2015-07-23 |
20150204172 | HEATER AND METHOD OF OPERATING - A plurality of heaters is provided to be disposed end to end within a bore hole of a formation where the bore hole extends from an upper end to a lower end such that a lower heater of the plurality of heaters is proximal to the lower end of the bore hole while every other of the plurality of heaters is distal from the lower end of the bore hole. Each of the plurality of heaters includes a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. Each of the plurality of heaters has a thermal output that is less than or equal to a predetermined value except the lower heater of the plurality of heaters which has a thermal output that is greater than the predetermined value. | 2015-07-23 |
20150204173 | SPLIT STREAM OILFIELD PUMPING SYSTEMS - A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well surface to the wellbore; providing a dirty stream including a solid material disposed in a fluid carrier; and operating one or more dirty pumps to pump the dirty stream from the well surface to the wellbore, wherein the clean stream and the dirty stream together form said oilfield fluid. | 2015-07-23 |
20150204174 | SYSTEM AND METHOD FOR PERFORMING STIMULATION OPERATIONS - A system and method is provided for performing a fracturing operation about a wellbore penetrating a subterranean formation. The method may acquire integrated wellsite data. The method may generate a mechanical earth model using the integrated wellsite data. The method may simulate an intersection of an induced hydraulic fracture with a natural fracture using the mechanical earth model. The method may determine intersection properties of the intersected natural fracture. The method may also generate a stimulation plan using the mechanical earth model and the intersection properties. The stimulation plan may include a fluid viscosity or a rate of injection of a fracturing fluid. | 2015-07-23 |
20150204175 | Method for Enhancing Fracture Propagation in Subterranean Formations - The present invention provides a method of hydraulically fracturing a well penetrating an subterranean formation by optimizing the spacing of fractures along a wellbore to form a complex network of hydraulically connected fractures by identifying a deviated wellbore in a subterranean formation; introducing a series of fractures in the deviated wellbore, wherein the series of fractures comprising at least a first fracture, a second fracture, a third fracture and a fourth fracture each separated by a non-uniformed and an increased spacing distance such that the spacing distance from each adjacent fracture in the series of fractures is at an increased distance; and forming one or more complex fractures extending from the series of fractures to form a complex fracture network. | 2015-07-23 |
20150204176 | Methods for Increased Hydrocarbon Recovery Through Mineralization Sealing of Hydraulically Fractured Rock Followed by Refracturing - The invention is a method of increasing hydrocarbon recovery through the biomineralization sealing of fractured geological formations followed by refracturing, including preparing a composition with biochemical components that is delivered into a geological subsurface through a cased well bore. Nutrient solutions are delivered into the geological subsurface through the well bore, thereby metabolizing the nutrient solutions with the biochemical components to create a mineralizing byproduct. Mineralizing solutions are delivered into the geological subsurface, delivering the composition, nutrient solutions and mineralizing solutions to targeted geological formations having existing formation fractures, through casing openings. Mineralizing solutions react with the mineralizing byproduct to produce minerals, which crystallize in the existing formation fractures, sealing and strengthening the existing formation fractures and resulting in sealed fractures. Targeted geological formations are refractured to create new formation fractures outside of the sealed fractures, exposing new areas of trapped hydrocarbons to production, to increase hydrocarbon recovery. | 2015-07-23 |
20150204177 | DOWNHOLE HETEROGENEOUS PROPPANT - A technique facilitates treatment of a subterranean formation. A proppant and a proppant carrier fluid are delivered to a subterranean location for treatment of the formation. At the subterranean location, heterogeneities of proppant structures are generated with the proppant and the proppant carrier fluid. The heterogeneous proppant structures are then transported into the subterranean formation to improve conductivity. | 2015-07-23 |
20150204178 | HYDRAULIC FRACTURING PROPPANTS - A method is given for treating a wellbore in a subterranean formation by hydraulic fracturing, slickwater fracturing, gravel packing, and the like, by using plate-like materials as some or all of the proppant or gravel. The plate-like materials are particularly useful in complex fracture systems, for example in shales. They may be used as from about 20 to about 100% of the proppant. Relative to conventional proppants, plate-like proppants demonstrate (a) enhanced crush resistance of the proppant due to better stress distribution among proppant particles, (b) diminished proppant embedment into formation fracture faces due to the greater contact surface area of proppant particles with the formation, (c) better proppant transport due to lower proppant settling rates, (d) deeper penetration into branched and fine fracture networks, and (e) enhanced proppant flowback control. Preferred plate-like proppants are layered rocks and minerals; most preferred is mica. | 2015-07-23 |
20150204179 | In Situ Retorting of Hydrocarbons and A Selected Metal - A method of producing hydrocarbons and a selected metal in situ from a fixed-bed hydrocarbon formation disposed below a ground surface and having a higher permeability zone substantially parallel to, and between a top lower permeability zone and a bottom lower permeability zone. The steps include providing at least one'injection well and first and second production wells in the higher permeability zone, injecting a heated thermal-energy carrier fluid (TECF) into the injection well, circulating the carrier fluid through the zone and creating a substantially horizontal situ heating element (ISHE) between the injection well and the production wells for mobilizing the hydrocarbons and the selected metal. | 2015-07-23 |
20150204180 | SUBSEA PROCESSING - There is described subsea apparatus and a method for processing fluid from a well. In an embodiment, a pipeline may be arranged to carry the multiphase fluid containing liquid and gas from the well. An outlet extending through a wall of the pipeline may let gas out of the pipeline from said region and through the outlet to separate said gas and liquid. A compressor may be connected to the outlet to compress the separated gas. Separated liquid may be conveyed along a sloping portion of the pipe to a low point in the seabed terrain, and may be conveyed to a pump for boosting the flow of liquid. The pump may be located in an excavated hole or glory hole below the seabed. | 2015-07-23 |
20150204181 | DOWNHOLE OIL/WATER SEPARATION SYSTEM FOR IMPROVED INJECTIVITY AND RESERVOIR RECOVERY - A method and system for treating a hydrocarbon-bearing reservoir with a DOWS system includes forming a first and a second DOWS system wells that fluidly communicate with both a first and second hydrocarbon-bearing formation. The first well has an upflowing DOWS unit and the second well has a downflowing DOWS unit. The DOWS units separate production fluid into a water-rich fluid and a hydrocarbon-rich fluid that passes to the surface. Both wells have an injection zone and a production zone. The DOWS system is operated such that water-rich fluid from the first DOWS well is introduced into the first hydrocarbon-bearing formation, water-rich fluid from the second DOWS well is introduced into the second hydrocarbon-bearing formation, production fluid from the second hydrocarbon-bearing formation is introduced into the first DOWS well, and production fluid from the first hydrocarbon-bearing formation is introduced into the second DOWS well. | 2015-07-23 |
20150204182 | METHOD AND SYSTEM FOR DETERMINATION OF PIPE LOCATION IN BLOWOUT PREVENTERS - A system to detect a position of a pipe with respect to a BOP includes a casing disposed around an outer surface of a section of the pipe. The system further includes sensing devices that are disposed on the casing and arranged to form a plurality of arrays and configured to generate position signals. The arrays are disposed circumferentially around the casing and spaced from one another along the length of the casing. The system includes a processing unit configured to compute distance between the pipe and each sensing device. The processing unit generates a first alert when the distance between the pipe and at least one sensing device is different from a reference distance. The processing unit generates a second alert when the distance between the pipe and each sensing device of at least one array of sensing devices is different from the reference distance. | 2015-07-23 |
20150204183 | REMOTE PRESSURE READOUT WHILE DEPLOYING AND UNDEPLOYING COILED TUBING AND OTHER WELL TOOLS - A well tool has a pressure sensor disposed in an interior space. The pressure sensor has at least one sensing element estimating a pressure parameter of a fluid in the interior space and a transponder configured to transmit radio frequency (RF) signals representative of the estimated pressure parameter. A data retrieval module receives the RF signals transmitted by the transmitter. | 2015-07-23 |
20150204184 | METHOD AND APPARATUS FOR SPECTRAL NOISE LOGGING - In the present invention that considerable advantage is to be gained in the provision of apparatus and methods for spectral noise logging that exhibit improved frequency resolution and thus sensitivity over those systems known in the art since this would allow for improved detection and characterisation of fluid flow through, or behind, a casing of a well penetrating subsurface formations | 2015-07-23 |
20150204185 | DOWNHOLE METHOD AND ASSEMBLY FOR OBTAINING REAL-TIME DATA - A method for obtaining real-time data relating to a well construction activity includes locating wellbore-lining tubing comprising at least one non-magnetic tubing section in a wellbore of a well. At least one downhole parameter is measured at a location external of the wellbore-lining tubing using at least one sensor associated with the non-magnetic tubing section. A magnetic field generating device is positioned within the non-magnetic tubing section and the device is activated to inductively couple the device to the at least one sensor. Data relating to the at least measured parameter is then transmitted through the non-magnetic tubing section to the magnetic field generating device by means of the inductive coupling. The data retrieved from the at least one sensor may then be transmitted to surface using a fluid pressure pulse generating device associated with the magnetic field generating device. | 2015-07-23 |
20150204186 | FREQUENCY LOCATION APPARATUS, METHODS, AND SYSTEMS - In some embodiments, an ex-situ apparatus and a system, as well as a method and an article, operate to transmit wideband modulated pulses to generate an externally-projected oscillating magnetic field in a material body, to record one or more raw echo free induction decay (REFID) signals during echo acquisition periods following some of the second modulated pulses, and to transform the acquired REFID signals via frequency decomposition to determine a preferred nuclear magnetic resonance frequency associated with a maximum amplitude of decomposed frequency components. Additional apparatus, systems, and methods are described. | 2015-07-23 |
20150204187 | Reliable Wired-Pipe Data Transmission System - A high-frequency data and/or power transmission system suitable for downhole use including signal/power couplers, transmission line segments and signal repeaters. Signals and power are/is transmitted between couplers and/or between couplers and repeaters by means of electromagnetic resonance coupling. In at least a portion of the system, the transmission line segments form parallel data paths and the repeaters provide crossover capability between the data/power paths, thereby significantly improving reliability. The invention also includes methods of transmitting data and/or distributing high-frequency power through a downhole transmission system including multiple data/power paths and multiple crossovers wherein a fault location in one data/power path is bypassed by routing data and/or power to a parallel data/power path by means of electromagnetic resonance coupling. | 2015-07-23 |
20150204188 | METHODS AND SYSTEMS OF INCREASING SIGNAL STRENGTH OF OILFIELD TOOLS - A method for measuring at least one property of an earth formation and transmitting information through the earth formation may include positioning at least one sensor downhole, circulating a wellbore fluid downhole, and transmitting a first signal from the sensor to at least one modulator. | 2015-07-23 |
20150204189 | Method And Apparatus For Identifying Fluid Attributes - A method for identifying the type of a sampled formation fluid, such as a hydrocarbon, is provided. In one embodiment, the method includes measuring absorbance by a sample of a formation fluid at multiple wavelengths of electromagnetic radiation with a spectrometer. The method also includes distinguishing between multiple fluid types to identify a fluid type of the sample most likely to match an actual fluid type of the sample based on the measured absorbance at two or more wavelengths of the multiple wavelengths. Additional systems, devices, and methods are also disclosed. | 2015-07-23 |
20150204190 | MOBILE MINING - The present disclosure relates to a mobile mining machine which may comprise a movable machine base frame, a rotatable tool drum and including excavating tools. The mobile mining machine may further comprise a cantilever unit including a front support arm part and a base part, and a pivotal device to pivot the cantilever unit. The mobile mining machine may further comprise a tilt device to tilt the cantilever unit and a rotary mechanism to rotate the support arm part and the tool drum. Thus, a mobile mining machine with which tunnels, galleries or shafts may be continuously driven in even in hard rock with a high mining output and low tool wear may be provided. | 2015-07-23 |
20150204191 | FLUID TANK BALANCING SYSTEM FOR MINING MACHINE - A mining machine includes a frame, a first fluid tank, a second fluid tank, a valve, and a control system. The first fluid tank is supported on the frame proximate a first end, and the second fluid tank is supported on the frame proximate a second end. The valve permits fluid communication between the first and second fluid tanks when the valve is in a first position, and prevents fluid communication between the first and second fluid tanks when the valve is in a second position. The control system includes a first sensor detecting an amount of fluid in the first tank, a second sensor detecting an amount of fluid in the second tank, and a controller. The controller moves the valve to the first position when the difference between the amounts of fluid in the first and second tanks a predetermined threshold. | 2015-07-23 |
20150204192 | MINE ROOF SUPPORT - A yielding mine roof support is provided which is made in the form of a hollow tube made from an epoxy, phenolic, or polyester fibreglass composite. | 2015-07-23 |
20150204193 | METHOD OF REPAIRING A WIND TURBINE BLADE - A method of repairing a wind turbine blade while mounted on a tower without removing the blade from the tower. The method includes the steps of removing a damaged portion of the blade and installing a repair portion to the blade where the damaged portion was removed, attaching a curing apparatus to the blade to enclose at least a portion of the repair portion, wherein the curing apparatus has a heating device, and curing the repair portion by heating the exterior surface of the repair portion with the heating device to a temperature of at least 50 degrees Celsius for a period of at least 2 hours. | 2015-07-23 |
20150204194 | TURBINE ROTOR ASSEMBLIES WITH IMPROVED SLOT CAVITIES - The turbine rotor blade includes a platform with a first side and a second side; an airfoil extending from the first side of the platform; and an attachment portion extending from the second side of the platform. The attachment portion includes first and second side surfaces and a base surface on an underside of the attachment portion between the first and second side surface. The base surface includes at least one curved segment or angled segment. | 2015-07-23 |
20150204195 | Rotor of an exhaust gas turbocharger - A rotor of an exhaust-gas turbocharger includes a rotor hub and rotor blades disposed on the rotor hub. The rotor blades have a blade thickness distribution selected in such a way that the rotor blades have along their extent from a fluid inlet or leading edge to a fluid outlet or trailing edge at least one transition between a stiffness or rigidity-oriented blade thickness distribution and an inertia and stress-oriented blade thickness distribution over the height of the blade. | 2015-07-23 |
20150204196 | Gas Turbine - The object of the invention is to suppress development of a secondary current whirl in the vicinity of a rotor blade front edge of a gas turbine even when a cooling refrigerant is mixed in from the front edge of an end wall section of the rotor blade. In a gas turbine rotor blade | 2015-07-23 |
20150204197 | AIRFOIL LEADING EDGE CHAMBER COOLING WITH ANGLED IMPINGEMENT - An airfoil cooling arrangement ( | 2015-07-23 |
20150204198 | METHOD OF MEASURING THE TEMPERATURE REACHED BY A PART, IN PARTICULAR A TURBINE ENGINE PART - A method of measuring temperature reached by a part, for example a turbine engine part, in operation, the method including: mechanically treating the part; oxidizing the part; and depositing a layer including a temperature indicator for indicating the temperature reached by the part in operation. | 2015-07-23 |
20150204199 | CIRCULATION DEVICE FOR CIRCULATING AN AMBIENT ATMOSPHERE AND METHOD FOR PRODUCING A CIRCULATION DEVICE OF THIS TYPE - The invention relates to a circulation device ( | 2015-07-23 |
20150204200 | FIBRE COMPOSITE COMPONENT FOR THE ROTOR BLADE OF A WIND TURBINE - A composite fiber component for a rotor blade of a wind power plant including a first sandwich core and a second sandwich core arranged next to each other, each having an inside facing a rotor blade interior and an outside facing a rotor blade exterior. A first fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the outside of the second sandwich core. A second fiber-containing laminate layer is arranged on the outside of the first sandwich core and on the outside of the second sandwich core. And, a third fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the inside of the second sandwich core. Also disclosed is a rotor blade for a wind power plant having a composite fiber component as disclosed. | 2015-07-23 |
20150204201 | CONTOURED FLOWPATH SURFACE - A spacer assembly for a rotor assembly of a gas turbine engine includes an endwall segment having a non-axisymmetric flowpath surface, a first depression and a second depression. A perimeter of the flowpath surface includes a forward edge, an aft edge, a suction side edge and a pressure side edge. The first depression is formed along the flowpath surface adjoining the suction side edge, and the second depression is formed along the flowpath surface adjoining the pressure side edge. | 2015-07-23 |
20150204202 | TURBINE ROTOR OF AN EXHAUST-GAS TURBOCHARGER - A turbine rotor of an exhaust-gas turbocharger of an internal combustion engine is provided, having at least one rotor disk ( | 2015-07-23 |
20150204203 | FABRICATION OF LOAD COMPRESSOR SCROLL HOUSING - A method of fabricating a load compressor scroll housing includes the steps of forging near net shape parts that are machined and subsequently welded together. The forged portions are machined to define specific features of the scroll housing along with the mating surfaces. An interface between top and bottom portions is defined within the volute chamber. The weld joint at the interface provides a finished surface within the volute chamber such that airflow is not adversely affected and additional machine process are not required within the volute chamber after formation of the weld joint. | 2015-07-23 |
20150204204 | SEALING DEVICE - The sealing device includes: an outer peripheral ring | 2015-07-23 |
20150204205 | Coasting-wheel with aeronautic levitation for harmonic electric generation - The present invention titled: a coasting-wheel with aeronautic levitation for harmonic electric generation is a device to generate electric energy or power via the principle of electromagnetic induction during the phase of energy-in and during the coasting phase; energy-off. It differs from the conventional electric generators and alternators as such the latter include an element of stator and an element of rotor but in the present invention the armature and magnets undergo rotation. Second, all electric generators operate in non-harmonic mode, i.e., when the input fuel is turned off the electric generator or alternator stops but in the present invention the electricity is generated during the coasting phase. It differs from the well-known apparatus flywheel as such the latter is a storage device and not a device for electric generation. In the present invention the coasting wheel is discharging its rotational kinetic energy into electric energy instantaneously during its spinning phase when the source of energy is turned off as well as it generates electricity during the phase of energy-in. | 2015-07-23 |
20150204206 | POWER GENERATING DEVICE USING ELECTRIC FURNACE - The present invention relates to a power generating device using an electric furnace, and more particularly, to a power generating device using an electric furnace in which the electric furnace boils water using electricity to produce steam and a turbine is operated using the steam to produce electricity. The power generating device using an electric furnace according to the present invention includes an electric furnace, a steam pipe, a turbine, a power generator, a condenser, and a super-heater. The electric furnace heats water to produce steam. The steam pipe guides the steam ejected from the electric furnace. The turbine is disposed at an inlet of the steam pipe, and is operated with the steam. The power generator is operated by the turbine, and generates electricity. The condenser condenses the steam discharged after the turbine is operated. The super-heater superheats a condensate condensed in the condenser, and supplies the superheated condensate to the electric furnace. According to the present invention, it is possible to generate electricity by boiling water in an electric furnace to produce steam using midnight electric power. Accordingly, it is possible to generate electricity without causing problems such as pollution and environment destruction occurring in thermal power generation or nuclear power generation. | 2015-07-23 |
20150204207 | TURBOMACHINE COMPONENT MARKING - A system for indicating wear of a turbomachine is provided herein. An embodiment of the system includes a turbomachine component, an indicating layer which is formed on the surface of the turbomachine component, and a top layer which covers the indicating layer, such that the indicating layer becomes optically detectable if the top layer is worn out by wear due to exposure of a working fluid or is fretted by fretting due to a contact of the turbomachine component with a further turbomachine component. | 2015-07-23 |
20150204208 | PITCH ANGLE MEASURING SYSTEM AND METHOD FOR WIND TURBINES - The present invention relates to a wind turbine and a measuring system for determining the pitch angle of at least one blade relative to a hub of a wind turbine. The measurement comprises a first angular-velocity sensor ( | 2015-07-23 |
20150204209 | DE-LAMINATION INDICATOR - An indicator device for detecting a delamination of a composite material, including detecting a delamination of a composite material of a wind turbine or a wind turbine rotor blade is provided. The indicator device includes: A first part, a second part and an electric circuit. Therein, the first part comprises at least a part of a lower part of the electric circuit. The second part comprises at least a part of an upper part of the electric circuit. And the lower part and the upper part are electrically connected to each other at a predetermined breaking point forming the electric circuit in such a manner, that when the indicator device is in use in a composite material, if a delamination of the respective composite material occurs, the electric connection between the lower part and the upper part breaks at the predetermined breaking point, thus cutting the electric circuit. | 2015-07-23 |
20150204210 | METHOD OF INSPECTING THE FAN TRACK LINER OF A GAS TURBINE ENGINE - A method of inspecting the fan track liner of a gas turbine engine of a type having a rotatable propulsive fan circumscribed by a fan track liner and having a plurality of fan blades extending radially outwardly from a central hub. The method comprises the steps of: affixing at least part of an inspecting device to the fan so as to be directed towards the fan track liner; and rotating the fan within the fan track liner to move said at least part of the inspecting device circumferentially relative to at least a region of the fan track liner to thereby scan said region of the fan track liner with said at least part of the inspecting device. | 2015-07-23 |
20150204211 | Turbine Overspeed Trip Test Data Logging System - A turbine overspeed trip test data logging system is a portable system by which an operator can electronically gather and log data for a turbine overspeed test. A plurality of sensors can be affixed to various components of the turbine for gathering test data to be received and compiled into a turbine test log by a processing unit. A method for processing the gathered sensor data is also provided. | 2015-07-23 |
20150204212 | HIGH DURABILITY TURBINE EXHAUST CASE - A turbine exhaust case has an outer housing to be secured within a gas turbine engine and a central hub. Struts extend between the outer housing and the central hub. The struts are formed at least in part of a first material. The central hub is formed at least in part of a second material. | 2015-07-23 |
20150204213 | ROTOR PIVOTING SYSTEM - A rotor pivoting system ( | 2015-07-23 |
20150204214 | METHOD AND APPARATUS FOR OPERATING A GAS TURBINE POWER PLANT AT LOW LOAD CONDITIONS WITH STACK COMPLIANT EMISSIONS LEVELS - An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series, optimized SCR for high NO2 reduction, Control valves with added capabilities for low turndown and other characteristics. | 2015-07-23 |
20150204215 | STEAM TURBOMACHINE VALVE HAVING A VALVE MEMBER AND SEAL ASSEMBLY - A steam turbomachine valve includes a valve body having an inlet portion, an outlet portion, and an interior portion. The interior portion includes an inner wall. A valve member is slidingly disposed within the interior portion of the valve body. The valve member includes an outer surface. A seal element is mounted to, and extends about, the outer surface of the valve member. The seal element is spaced from the inner wall by a gap. A seal assembly is mounted to the inner wall. The seal assembly spans the gap and is configured and disposed to contact the seal element of the valve member. | 2015-07-23 |
20150204216 | WASTE HEAT RECOVERY POWER GENERATION PLANT FOR SINTERING FACILITY - To provide a waste heat recovery power generation plant for sintering facility capable of efficiently recovering a waste heat of a sintering machine in addition to that of a sintered-ore cooler, while restraining that sulfuric anhydride contained in an exhaust gas of the sintering machine forms drops. An SM boiler is configured to heat all of or a part of hot water generated by an SC boiler, by introducing a high temperature part of an exhaust gas of a sintering machine. At this time, a temperature of the hot water to be supplied to the SM boiler is controlled such that a temperature of an exhaust gas at an exhaust-gas temperature of the SM boiler is maintained at a temperature higher than an acid dew point. | 2015-07-23 |
20150204217 | CONTROL VALVE OF A CAMSHAFT ADJUSTER - A control valve ( | 2015-07-23 |
20150204218 | GUIDE SHOE - An object of the present invention is to provide a guide shoe that can prevent a shortage of lubricating oil and supply the lubricating oil onto a sliding surface of the shoe in a favorable manner. To achieve the above object, the present invention provides a guide shoe | 2015-07-23 |
20150204219 | VALVE OPERATING SYSTEM FOR ENGINE - A valve operating system for an engine is provided. The system includes first and second detent mechanisms for holding a cam element at a first position when the cam element is shifted to one side in camshaft directions, and at a second position when the cam element is shifted to the other side. The detent mechanisms include first and second detent cams and first and second pushing members, respectively. The first detent cam includes first and second grooves and a first top portion. The second detent cam includes third and fourth grooves and a second top portion. The first and second grooves have inclining portions extending from the first top portion toward bottoms thereof, inclining with respect to the camshaft directions, respectively. The third and fourth grooves have inclining portions extending from the second top portion toward bottoms thereof, inclining with respect to the camshaft directions, respectively. | 2015-07-23 |
20150204220 | THERMAL MANAGEMENT SYSTEM FOR A VEHICLE AND METHOD - A thermal management system and method for a vehicle can include providing an engine, a transmission, a radiator, and a thermostat. A first heat exchanger can be in fluid communication with the transmission to heat or cool transmission fluid. A hot branch line can extend from the engine to the first heat exchanger to supply engine coolant to the first heat exchanger. The hot branch line can be in fluid communication with each of the engine and the first heat exchanger. A heat exchanger return line can be in fluid communication with each of the first heat exchanger and an inlet of the thermostat. | 2015-07-23 |
20150204221 | ENGINE APPARATUS - An object in mounting an engine on an exhaust gas purifier is to ensure the coupling strength between the engine and a hanger and to balance the whole engine at the time of lifting while avoiding interference between the exhaust gas purifier and the hanger. An engine apparatus includes an exhaust gas purifier configured to purify exhaust gas from the engine. The exhaust gas purifier is mounted on the engine through a mounting base. A lower end of the hanger, which is configured to lift the engine, is fastened to the mounting base. An upper end of the hanger is extended along an outer periphery of the exhaust gas purifier. | 2015-07-23 |
20150204222 | NON-THERMAL PARTICULATE FILTER REGENERATION - A particular trap is regenerated without the use of heat. The regeneration is accomplished using a valving mechanism for periodically creating a reverse pressure throughout the entire trap, after the reverse pressure is created controls are operative to start a regeneration cycle by creating a substantially instantaneous reverse pressure drop across the porous walls of the entire trap to dislodge accumulated particulate cake and by causing the filtered exhaust gas to flow back through the porous walls to remove the dislodged particulate from the trap. A settling tank is connected to the exhaust pipe upstream of the trap to receive and store the dislodged particulate. The controls are operative to return the system to its filtering operation. Gaseous effluent from the tank is returned to the exhaust system upstream of the filter to provide a “closed system” in which only filter gas is discharged to atmosphere. | 2015-07-23 |
20150204223 | BURNER - A burner includes a tubular inner tube portion and a tubular outer tube portion. The inner tube portion mixes fuel with air. The outer tube portion surrounds the inner tube portion. A peripheral wall of the inner tube portion has a gaseous mixture outflow hole. The gaseous mixture outflow hole causes a clearance between an inner peripheral surface of the outer tube portion and an outer peripheral surface of the inner tube portion to communicate with an interior of the inner tube portion. A peripheral wall of the outer tube portion has an air supplying hole. The air supplying hole further supplies air to the clearance. | 2015-07-23 |
20150204224 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - A particulate filter for trapping particulate filter which is contained in exhaust gas is arranged in an engine exhaust passage. The particulate filter is provided with exhaust gas inflow passages and exhaust gas outflow passages which are alternately arranged via porous partition walls. Movement promoting control is performed to promote movement of the ash which deposits on the inner circumferences of the exhaust gas inflow passages to the rear parts of the exhaust gas inflow passages. The pressure loss of the particulate filter is detected. When the detected pressure loss is larger than a predetermined upper limit value, PM removal control is performed to remove the particulate matter from the particulate filter. | 2015-07-23 |
20150204225 | WATER INJECTION EXHAUST TREATMENT SYSTEM - An exhaust treatment system may include gas, reductant and water conduits, a nozzle and a pump. The gas conduit may be in fluid communication with a source of compressed gas and may include a first valve controlling a flow of compressed gas through the gas conduit. The water conduit may be in fluid communication with a water source and may include a second valve controlling a flow of water through the water conduit. The nozzle may be in fluid communication with the gas, reductant and water conduits. The pump may be disposed between the nozzle and the second valve and may be in fluid communication with the reductant and water conduits. The pump may be operable in a first pumping direction to pump reductant from the reductant source to the nozzle and in a second pumping direction to pump reductant away from the nozzle and toward the reductant source. | 2015-07-23 |
20150204226 | Method and Apparatus for Controlling an Exhaust Gas After-Treatment System - A combustion engine exhaust gas after-treatment device includes a first selective catalytic reduction (SCR) device, a second SCR device downstream of the first and a diesel particulate filter (DPF) between the first and second SCR devices. A method of dosing the after-treatment device includes: allowing dosing of the first SCR device with reductant only when its temperature is within its the operating temperature range; and allowing dosing of the second SCR device with reductant only when its temperature is within its different operating temperature range; and reducing the level of dosing of the first SCR device when requiring DPF regeneration. | 2015-07-23 |
20150204227 | Method of Controlling Operation of an Engine Having Both an Exhaust Fluid Recirculation Apparatus and an Exhaust Fluid Treatment Apparatus - In an engine unit including a combustion unit and an exhaust fluid recirculation apparatus where unburnt fuel is provided to an exhaust flow treatment apparatus for combustion, it may be desirable to prevent unburnt fuel from entering the exhaust fluid recirculation apparatus. A method of controlling operation of an engine unit includes confirming that a valve of the exhaust flow recirculation apparatus is closed, and overriding a control signal for controlling the valve in order to ensure that the valve remains closed before injecting fuel upstream of the valve for combustion in the exhaust fluid treatment apparatus. | 2015-07-23 |
20150204228 | CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - In a control apparatus for an internal combustion engine in which an SCR catalyst is arranged in an exhaust passage, a dummy determination processing to determine whether the selective catalytic reduction catalyst is mounted at a location is carried out, based on a temperature difference between a temperature of exhaust gas flowing into the location where the selective catalytic reduction catalyst is to be arranged and a temperature of exhaust gas flowing out of the location, after starting of the internal combustion engine, wherein when a period of time for the temperature of the selective catalytic reduction catalyst to become equal to or less than a fixed temperature is equal to or more than a predetermined period of time, the dummy determination processing is carried out, whereas when the period of time is less than the predetermined period of time, the dummy determination processing is not carried out. | 2015-07-23 |
20150204229 | STRUCTURE FOR PREVENTING HEAT OF MUFFLER FOR CONSTRUCTION MACHINE FROM BEING DIFFUSED - Disclosed is a structure for preventing the heat of a muffler from being diffused, which prevents the heat generated by the muffler from being diffused into the peripheral components in the engine room and discharges the heat through the engine hood to the outside. The structure for preventing the heat of the muffler for a construction machine includes a plurality of frames mounted on the bottom of the engine room outside the muffler, a shield supported by the frames so as to surround the outside of the muffler to form a shielding area, and a detachment means formed on one side of the shield. | 2015-07-23 |
20150204230 | EXHAUST SYSTEM MEMBER - An exhaust system member having an upstream-side opening into which exhaust gas flows and a downstream-side opening from which exhaust gas flows includes: first and second members. The first member includes first facing portions each having a distal end portion bulged radially outward in the exhaust system member, a notch is provided at a boundary between the distal end portion and a proximal end portion radially inward of the distal end portion at each end portion of each first facing portion, adjacent to the corresponding opening. The second member includes second facing portions, each arranged on the radially inner side of the corresponding distal end portion, each second facing portion is welded at a portion overlapped with the corresponding first facing portion, and a distal end face of each second facing portion facing a proximal end-side notch face of the notch in the corresponding first facing portion. | 2015-07-23 |
20150204231 | SYSTEM FOR PRESSURIZING A COOLING CIRCUIT OF AN INTERNAL COMBUSTION ENGINE EQUIPPED WITH A TURBOCOMPRESSOR UNIT - A system for pressurizing a cooling circuit of an internal combustion engine equipped with a turbocompressor unit. The turbocompressor has a turbine arranged on an exhaust line of the exhaust gas of the internal combustion engine and a compressor arranged on the intake line internal combustion engine. The internal combustion engine comprises a cooling circuit comprising an expansion tank connected, by a pneumatic pipe, to a point of the intake line downstream of the compressor. The pneumatic pipe comprises a mechanical valve, adapted to open and to close said pneumatic pipe in relation to a differential pressure between a point upstream and a point downstream of the mechanical valve itself. | 2015-07-23 |
20150204232 | ELECTRONIC PRE-CHAMBER INJECTOR - A solenoid valve for a pre-chamber of an internal combustion engine is provided. The solenoid valve may include a valve body defining an inlet port fluidly coupled with a fuel line, an outlet port fluidly coupled with the pre-chamber, and a passage fluidly coupling the inlet port with the outlet port. A valve stem may be slidably disposed in the passage between a first position and a second position. The valve stem may be configured to engage the outlet port in the first position to thereby prevent fluid communication therethrough. A biasing member may be disposed in the passage and configured to actuate the valve stem to the first position. A solenoid may be coupled with the valve body and configured to actuate the valve stem to the second position to thereby allow fluid communication therethrough. | 2015-07-23 |
20150204233 | HEAT-INSULATING STRUCTURE OF MEMBER FACING ENGINE COMBUSTION CHAMBER, AND PROCESS FOR PRODUCING SAME - A heat-insulating layer exhibiting high resistance to cracks, peeling, deformation, and gasoline and high heat insulation is obtained on the wall surface of an engine member ( | 2015-07-23 |
20150204234 | FRESH AIR SUPPLY DEVICE - A fresh air supply device for an internal combustion engine may include a filter element arranged in a filter compartment. A charge-air cooler may be arranged in a cooler compartment. A one-piece housing may integrally include the filter compartment and the cooler compartment. The charge-air cooler may have a coolant inlet, a coolant outlet and an internal coolant path which connects the coolant inlet to the coolant outlet. The internal coolant path may be coupled in a heat-transferring manner to a charge-air path extending inside the housing and through the cooler compartment. | 2015-07-23 |
20150204235 | ROTARY VALVE INTERNAL COMBUSTION ENGINE - A rotary valve internal combustion engine has a piston ( | 2015-07-23 |
20150204236 | CONNECTING ROD AND INTERNAL COMBUSTION ENGINE - A connecting rod ( | 2015-07-23 |
20150204237 | TURBINE BLADE AND METHOD FOR ENHANCING LIFE OF THE TURBINE BLADE - A turbine blade comprises a cooling passage defined between a pressure side wall and a suction side wall. A pin is disposed within the cooling passage and includes a first end that is connected to the pressure side wall and a second end that is connected to the suction side wall. A radially oriented fillet having a maximum radius of curvature value is disposed along a periphery of at least one of the first end or the second end within a region of peak steady state stress. An axially oriented fillet having a maximum radius of curvature value is disposed along a periphery of at least one of the first end or second end within a region of peak vibratory stress. The maximum radius of curvature value of the axially oriented fillet is greater than the maximum radius of curvature value of the radially oriented fillet. | 2015-07-23 |
20150204238 | LOW NOISE TURBINE FOR GEARED TURBOFAN ENGINE - A gas turbine engine includes a fan, a turbine having a fan drive rotor, and a speed reduction device effecting a reduction in the speed of the fan relative to an input speed from the fan drive rotor. The fan drive rotor has a number of turbine blades in at least one of a plurality of rows of the fan drive rotor, and the turbine blades operating at least some of the time at a rotational speed, and the number of turbine blades in the at least one row and the rotational speed being such that the following formula holds true for the at least one row of the fan drive turbine (the number of blades×the rotational speed)/(60 seconds/minute)>4000 Hz. The rotational speed being in revolutions per minute. A method is also disclosed. | 2015-07-23 |
20150204239 | SYSTEM AND METHOD FOR CONTROLLING THE COMBUSTION PROCESS IN A GAS TURBINE OPERATING WITH EXHAUST GAS RECIRCULATION - A system includes a fuel control system configured to control a fuel flow to one or more combustors and an oxidant control system configured to control an oxidant flow to each combustor of the one or more combustors, wherein the oxidant flow is configured to at least partially react with the fuel flow within the one or more combustors to form an exhaust gas flow. The system also includes an exhaust gas system configured to direct a recirculation flow of the exhaust gas flow to each combustor of the one or more combustors; and a controller coupled to the fuel control system, the oxidant control system, and the exhaust gas system. The controller is configured to independently control a fuel-to-oxidant ratio and an exhaust gas-to-oxidant ratio. The FOR is the fuel flow divided by the oxidant flow, and the EGOR is the recirculation flow divided by the oxidant flow. | 2015-07-23 |
20150204240 | CONSTANT-VOLUME COMBUSTION (CVC) CHAMBER FOR AN AIRCRAFT TURBINE ENGINE INCLUDING AN INTAKE/EXHAUST VALVE HAVING A SPHERICAL PLUG - A constant-volume combustion chamber for an aircraft turbine engine, including a compressed gas intake valve configured to adopt an open position and a closed position, and in the closed position blocking intake of compressed gas into the chamber, and a combusted gas exhaust valve configured to adopt a closed position, in the closed position blocking exhaust of combusted gas outside the chamber. At least one of the intake and exhaust valves includes at least one spherical plug. | 2015-07-23 |
20150204241 | METHOD AND APPARATUS FOR OPERATING A GAS TURBINE POWER PLANT AT LOW LOAD CONDITIONS WITH STACK COMPLIANT EMISSIONS LEVELS - An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series. | 2015-07-23 |
20150204242 | FASTENER - The present invention provides a fastener for securing two pipe adapters within a casing such as a gas turbine casing. The fastener comprises a fastener body having a central bore for receiving the pipe adapters and having a first engagement portion, e.g. a radial projection extending into said central bore, for engagement with a first pipe adapter. The central bore has a second engagement portion, e.g. a threaded portion, for engagement with a second pipe adapter. The fastener further comprises an outer wall at least partly surrounding and spaced from the fastener body in a concentric arrangement. The outer wall comprises a fastener flange extending radially in a direction away from the fastener body for overlaying the casing. At least a portion of the outer wall is deformable (e.g. formed as bellows) so that, in use, axial and/or radial movement of the pipe adapters is dampened. | 2015-07-23 |
20150204243 | STRUCTURAL SUPPORT BRACKET FOR GAS FLOW PATH - A structural support system is provided in a can annular gas turbine engine having an arrangement including a plurality of integrated exit pieces (IEPs) forming an annular chamber for delivering gases from a plurality of combustors to a first row of turbine blades. A bracket structure is connected between an IEP and an inner support structure on the engine. The bracket structure includes an axial bracket member attached to an IEP and extending axially in a forward direction. A transverse bracket member has an end attached to the inner support structure and extends circumferentially to a connection with a forward end of the axial bracket member. The transverse bracket member provides a fixed radial position for the forward end of the axial bracket member and is flexible in the axial direction to permit axial movement of the axial bracket member. | 2015-07-23 |
20150204244 | SELECTIVELY DEOXYGENATED STORED FUEL SYSTEM - A gas turbine engine includes a multi-stage fuel injection system including at least a first fuel injection stage and a second fuel injection stage, a first fuel reservoir fluidly connected to the first fuel injection stage and fluidly connected to a selective valve, and a second fuel reservoir fluidly connected to the selective valve. The selective valve connects one of the first fuel reservoir and the second fuel reservoir to the second fuel injection stage. | 2015-07-23 |
20150204245 | TURBINE BLADE PLATFORM SEAL ASSEMBLY VALIDATION - A platform seal assembly for a gas turbine engine with a turbine disk and a plurality of turbine blades is disclosed. The platform seal assembly includes a platform seal and a validation tab. The platform seal includes a first end, a second end, opposite and distal to the first end, and a body extending between the first end and the second end. The validation tab includes an attachment portion affixed to the platform seal and an observable indicator portion extending from the attachment portion. | 2015-07-23 |
20150204246 | DRIVE GEARBOX ON A TURBOMACHINE, CONSISTING OF A DRIVE TRAIN WITH GEAR LINES EXTENDING INTO NON-PARALLEL PLANES - This A gearbox to be mounted on a turbomachine and driven by a radial drive shaft of the latter. The gearbox has a three-dimensional or sinuous shape, which can house a large quantity of equipment to be driven, without occupying a large amount of space in any dimension, since the gearbox remains close to the turbomachine and the equipment can be distributed over a large surface. The drive train of gears successively extends into several non-parallel planes and comprises an axial branch on the turbomachine and a branch forming an arc of circle around the turbomachine. | 2015-07-23 |
20150204247 | METHOD OF OPERATING A GAS TURBINE ASSEMBLY AND THE GAS TURBINE ASSEMBLY - The invention relates to a method of operating a gas turbine assembly, which includes a compressor, a combustor and a gas turbine. The method includes operating the gas turbine assembly at a partial load with respect to a base load of the gas turbine assembly; bypassing a portion of blow-off air from the compressor; and introducing the portion of blow-off air into an exhaust gas duct after the gas turbine. The gas turbine assembly, when operating at partial load, can maintain the air-to-fuel ratio approximately constant and hence to control the combustion flame temperature at a level where emissions are kept below the permission limit. | 2015-07-23 |
20150204248 | DRIVE FORCE TRANSMISSION APPARATUS - A coupling unit includes an output gear, a coupling and a rubber cushion. A second rotatable shaft portion of the coupling includes a resilient projection that projects outwardly in a radial direction from an outer peripheral surface of the second rotatable shaft portion. The resilient projection is resiliently inwardly deformed in the radial direction during movement of the resilient projection along a deep side of a recessed groove of a through-hole formed in a first rotatable shaft portion of the output gear at a time of fitting the second rotatable shaft portion into the through-hole. When the resilient projection projects from the through-hole, the resilient projection is resiliently outwardly restored and is engaged to an engaging portion of the first rotatable shaft portion to limit removal of the second rotatable shaft portion from the through-hole. | 2015-07-23 |
20150204249 | METHOD AND SYSTEM FOR PRE-IGNITION CONTROL - Methods and systems are provided for addressing pre-ignition occurring while operating with blow-though air delivery. A variable cam timing device used to provide positive intake to exhaust valve overlap is adjusted in response to an indication of pre-ignition to transiently reduce valve overlap. Pre-ignition mitigating load limiting and enrichment applied during a blow-through mode is adjusted differently from those applied when blow-through air is not being delivered. | 2015-07-23 |