05th week of 2012 patent applcation highlights part 40 |
Patent application number | Title | Published |
20120027538 | Fastening device - A fastening device comprising a head, an elongated shaft and a seal. The seal has a sealing element and a covering elements made of different materials. | 2012-02-02 |
20120027539 | THREADED JOINT AND METHOD OF SEALING A THREADED JOINT - A threaded joint includes a flange, a nut and a flexible seal. The flange, the nut and the flexible seal have threads respective inner surfaces, the threads having shapes complementary to threads on an outer surface of a stem. The flange is configured to allow the stem to move by rotation through the flange. The nut and the flexible seal are configured to move by rotation relative to the stem. The flange has a counter bore and the nut has a groove. The flexible seal has a first portion configured to fill the counter bore in the flange, and a second portion configured to fill the groove of the nut. | 2012-02-02 |
20120027540 | SYSTEM AND METHOD FOR TREATING PRINTED FLEXIBLE BOOK COVERS PRIOR TO BINDING - Disclosed are embodiments of a system and method for treating a printed flexible book cover prior to book binding. In the embodiments, a liquid (e.g., water or a water-oil solvent mixture) can be applied (e.g., by a liquid applicator, such as a spray nozzle, sponge, brush, etc.) to the spine portion only of the book cover so that it pools on the surface. After a predetermined amount of time, the liquid can be removed (e.g., by a liquid remover, such as a vacuum, blower, heater, etc.). Allowing the spine portion of the book cover to soak in the liquid for this predetermined amount of time ensures that that the liquid saturates the spine portion. Saturating the spine portion of the book cover alters the surface structure and, thereby enhances adhesion of an adhesive material (e.g., glue or tape) during a subsequent book binding process even in the presence of fuser oil. | 2012-02-02 |
20120027541 | PIPE-HANDLING APPARATUS AND METHODS - Apparatus and methods for moving a tubular member to and from an elevated drilling rig floor. A support structure has an elongate indentation in its upper surface. A ramp assembly comprises telescoping assemblies having nested tubular elements extendable between retracted and deployed positions, thus forming a guide extending from the elongate indentation towards the drilling rig floor. Indexers may urge the tubular member towards or away from the elongate indentation. Kickers may urge the tubular member into or out of the elongate indentation, and may be operable via actuators which also operate the indexers. | 2012-02-02 |
20120027542 | Vacuum processor - A vacuum processor includes a first transfer vessel that is connected on the back of a lock chamber connected on the back of an atmospheric transfer vessel and has a first robot; a second transfer vessel that is arranged at the back of this first transfer vessel, connected to the first transfer vessel, and has a second robot; a repeating vessel that connects the transfer vessels, and has a storage section in which the wafer is transferred between the robots; and a processing vessel that is connected, on an almost perpendicular side, to the repeating vessel around the second transfer vessel and in which the wafer is processed at a processing chamber, wherein the first robot has two arms that are expanded and contracted to both directions across a pivot axis, and the second robot has two arms that are expanded and contracted to the same direction around the pivot axis. | 2012-02-02 |
20120027543 | METHOD AND DEVICE FOR INTRODUCING AND REMOVING SUBSTRATES - The invention describes a method and a device for introducing and removing substrates. Substrates ( | 2012-02-02 |
20120027544 | SYSTEM AND METHOD OF MONITORING AN ENVIRONMENTAL PARAMETER ALONG A PREDETERMINED ROUTE - A monitoring system has a vehicle and a monitoring device. The vehicle is movable along a predetermined route, and the monitoring device is detachably mounted to the vehicle. The vehicle has a photonic device configured to read position information according to detection of a positioning tag positioned at a predetermined position along the predetermined route. The monitoring device has a sensor configured to monitor an environmental parameter and a controller communicatively coupled to the sensor and the photonic device. The controller is configured to record the monitored environmental parameter along the predetermined route and the position information. | 2012-02-02 |
20120027545 | Apparatus for teaching a gripping device - An apparatus for teaching a gripping device is disclosed. The gripping device includes an arm. The arm has a free end that can be freely moved in an operating region and includes a gripper. The gripper includes at least one, preferably two pairs of spaced apart gripping tongs consisting of an electrically conductive material. A control unit is included electrically connected to the tongs or a measuring body. A detecting means detects current in a control line. The apparatus uses a reference component having three reference surfaces to determine a reference coordinate system. By pre-specifying several points on the reference component that are to be approached, an automated determination of the position and alignment of a chuck or pallet can be utilized. A highly accurate analysis of a current signal is used by the apparatus for teaching the gripping device. | 2012-02-02 |
20120027546 | ARRANGEMENT FOR STORAGE, WAREHOUSE RACK AND HANDLING MACHINE PARTICULARLY FOR SUCH AN ARRANGEMENT - The invention relates to an arrangement for storage, which includes a warehouse rack containing shelves ( | 2012-02-02 |
20120027547 | APPARATUS FOR STORAGE OF OBJECTS FROM THE FIELD OF MANUFACTURE OF ELECTRONIC COMPONENTS - A storage apparatus for objects in the manufacture of substrates, in particular of substrates for electronic components, is provided with a housing which forms at least one closed area for storage of the objects. The storage apparatus also has a pure air device by which a pure air atmosphere can be produced at least within a section of the housing. Using at least one input/output device for the storage apparatus, objects can be passed into the interior of the housing or removed from the interior, in which case the objects can be handled by at least one handling device in the interior of the housing, and object receptacles are provided within the housing, in which objects can be temporarily stored outside transport containers. In order to require a position area which is as small as possible for a storage apparatus such as this, despite it having a high storage capacity, the invention provides that two areas which are arranged at least partially one above the other are formed in the same housing of the storage apparatus, with a first area for an object storage device, and a second area for a transport container storage device. | 2012-02-02 |
20120027548 | Scale Based Load Limiting For Refuse Vehicles - A weight based load limiting system for a refuse vehicle. The system includes a weight determination module that generates a signal that varies in accordance with a vehicle weight. If the vehicle weight approaches or exceeds a predetermined maximum weight, the signal inhibits a portion of the loading or packing operation to prevent overloading the vehicle. In various configurations, the inhibiting can be to prevent a lifting of a refuse container to prevent empting the container into the vehicle hopper. In other various configurations, the inhibiting occurs by maintaining engine power to less than the engine power typically output during a packing operation. | 2012-02-02 |
20120027549 | Truck bed with tipping platform and lift - A method of performing landscaping or construction work which utilizes portions of a known lift, crane or hoist unit in a novel way. Angled knuckle portions of the lift are modified to include reinforced eyelets or equivalent structures. A platform is hingedly mounted to the rear of a truck bed and also includes reinforced eyelet structures. Cables are provided between the lift eyelets and the platform eyelets to enable raising and lowering of the platform to conduct loading and unloading operations. A dump box for transporting soil or other products may be utilized in the system and is mounted between upper drive elements of the lift, crane or hoist. | 2012-02-02 |
20120027550 | AUTOMATED INSTALLATION SYSTEM FOR AND METHOD OF DEPLOYMENT OF PHOTOVOLTAIC SOLAR PANELS - A system of method for automated deployment of a plurality photovoltaic solar panels carried as a unit by a carrier. The system includes an installation trailer, a robot having a mechanism for picking up a carrier and a push actuator. Carriers carrying a plurality of solar panels as a unit may be installed using the system by carrying a plurality of carriers on an installation trailer to a row of rails onto which the carriers are to be installed. The robot picks up each carrier and aligns and places the carrier on the rail system. The push actuator pushes the carrier down the rail system, making space for the next carrier to be installed. | 2012-02-02 |
20120027551 | FRONT-LOADER ARRANGEMENT - A front-loader arrangement ( | 2012-02-02 |
20120027552 | RETRACTABLE ASSEMBLY - A retractable assembly for introducing an insertable device into a container through a container opening, comprising: a linear guide, which is releasably mountable on the container via a holder; and, guided along the linear guide, a slider, on which an articulated head is so seated, that it has at least two degrees of freedom perpendicular to the linear guide, wherein the insertable device is at least axially guided in the articulated head in the mounted state. | 2012-02-02 |
20120027553 | Storage Module for Flat Objects - A storage module for flat articles, has a storage region for a stack of articles, an introduction unit for the introduction of articles from an article stream into the storage region, and a draw-off unit arranged at the same end of the stack as the introduction unit, for drawing off articles from the storage region. The storage module has a movement device for moving the stack away from the introduction unit toward the draw-off unit. The storage module thus provides for an intermediate storage of the articles, which is protective of the mail items. | 2012-02-02 |
20120027554 | MEDIUM STACKING APPARATUS AND FINANCIAL DEVICE COMPRISING THE SAME - Provided is a medium stacking apparatus, which comprises a stacking frame and a damper. The stacking frame forms a stacking space in which media are stacked, and comprises a medium inlet. The damper collides with the medium introduced through the medium inlet, and absorbs a shock from the medium. The damper comprises one or more damping ribs that extend in a stacking direction of the media and are elastically deformed by a collision with the medium. | 2012-02-02 |
20120027555 | PALLETIZER WITH BOX LAYER PREPARATION - The invention relates to a palletizer including a device ( | 2012-02-02 |
20120027556 | SOUND FILM ADSORPTION DEVICE - A sound film adsorption device includes a bracket, which has a platform on which a sound film collect, which forms a chamber for receiving a sound film, is installed. A rotary mechanism includes a supporting post retained on the platform, a rotary plate in the form of a cantilever-shape having an end moveably coupled to the supporting post and an opposite end serving as an open end, and a spring member coupled with the supporting post to support between the platform and the rotary plate. A first absorbing mechanism includes a first vacuum generator and an absorbing head. The absorbing head has an end communicated with the first vacuum generator, and the other end extended through the open end of the rotary plate to align with the chamber of the sound film collect so as to absorb the sound film placed within the sound film collect. | 2012-02-02 |
20120027557 | METHOD AND ELECTROSTATIC TRANSFER STAMP FOR TRANSFERRING SEMICONDUCTOR DICE USING ELECTROSTATIC TRANSFER PRINTING TECHNIQUES - A transfer stamp that can be charged with a spatial pattern of electrostatic charge for picking up selected semiconductor dice from a host substrate and transferring them to a target substrate. The stamp may be bulk charged and then selectively discharged using irradiation through a patterned mask. The technique may also be used to electrostatically transfer selected semiconductor dice from a host substrate to a target substrate. | 2012-02-02 |
20120027558 | TIRE STORAGE SYSTEM - A tire storage system includes two spaced apart arrays of tire storage locations. An array of transfer locations is disposed between the two arrays of storage locations. Tires are loaded on and removed from carriages when the carriages are at transfer locations. The carriages are movable from the transfer locations to the storage locations along a path which extends along central axes of tires disposed on the carriages. The carriages may be suspended above a floor. Upper and lower arrays of storage and transfer locations may be provided. | 2012-02-02 |
20120027559 | TOOL AND METHOD FOR LIFTING AND DRAGGING HEAVY LOADS - The present document describes a user-operated tool and a method for lifting and dragging a heavy load on a surface. The tool comprises an elongated body having an upper end comprising a grip, a lower end for making contact with the surface in the vicinity of the heavy load, and a flex point located between the upper end and the lower end. The tool comprising a lift and drag member, having a hook member for hooking to the heavy load, connected to the elongated body and is movable about the flex point. The tool comprising a strap reel fixed on the elongated body for winding the strap thereon. In use, the user grips the tool and rotates the elongated member about the lower end and away from the heavy load. The lift and drag member thereby first lifts and then drags the heavy load toward the lower end. | 2012-02-02 |
20120027560 | Bicycle Carrier and Method for Serially Loading Bicycles Thereon - Bicycle carriers and corresponding methods for loading bicycles and/or other wheeled vehicles onto such carriers are provided. In one embodiment, a bicycle carrier includes a support member (e.g., vertical or generally vertical support member), a hitch member, an elongate upper member, and an elongate lower member. The elongate upper member has an elongate body and a free distal end configured for receipt, serially one after another, of a plurality of wheels of a corresponding plurality of bicycles. For each bicycle, adjacent spokes of a bicycle wheel are positioned about the free distal end of the elongate member and the bicycle is moved backward along the elongate body towards the support member. The elongate body is configured to support the weight of the bicycles via contact with the rims of the bicycle wheels. The carrier is configured such that the bicycles hang generally vertically from the elongate body. | 2012-02-02 |
20120027561 | LIFT SYSTEM AND METHOD FOR CONSTRUCTING A WIND TURBINE - A lift system and a method for constructing a wind turbine are disclosed. The lift system includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending in a generally span-wise direction between a tip and a root. The lift system further includes a lift device including a sling and a quick release device. The sling is coupled to the rotor blade and includes a first end and a second end spaced apart by an intermediate portion. The second end is releasably joined to the first end by the quick release device. The quick release device is operable to release the second end from the first end to uncouple the sling from the rotor blade. | 2012-02-02 |
20120027562 | MACHINE SYSTEM AND METHOD FOR TRANSFERRING AND GROUPING ARTICLES AND PACKAGING MACHINE | 2012-02-02 |
20120027563 | Method of Sorting Mailpieces By Means of Shuttle Trays of Variable Storage Capacity - In a method of sorting mailpieces, in which method the mailpieces sorted into the sorting outlets of a postal sorting machine are transferred from said sorting outlets to an unstacker magazine of the machine, or to an unstacker magazine of another sorting machine for the purpose of being sorted again into sorting outlets, said mailpieces are handled by means of shuttle trays of variable storage capacity for the purpose of transferring them from the sorting outlets to the unstacker magazine. | 2012-02-02 |
20120027564 | Method for the pressure regulation of a barrier fluid and a pumping device for a method of this kind - A method for the pressure regulation of a barrier fluid in a pumping device ( | 2012-02-02 |
20120027565 | SYSTEM AND METHOD FOR CONTROLLING LEAK STEAM TO STEAM SEAL HEADER FOR IMPROVING STEAM TURBINE PERFORMANCE - A turbine system is provided wherein during self-sealing operating conditions, excess leakoff steam is restricted from being dumped to a steam seal header and is diverted into the working steam flow path, hence increasing net output and efficiency for the turbine system. A related method is also provided. | 2012-02-02 |
20120027566 | METHOD AND SYSTEM FOR OPERATING A WIND TURBINE - A method, system and computer program product for operating a wind turbine is disclosed. For operating the wind turbine a set of operational data points are sensed via a sensing module. The set of operational data points may include bending stress values. Based on the bending stress values, a load scenario indicator value may be computed. Further, based on the set of operational data points a loading threshold value may be obtained. At least one operating parameter of the wind turbine is changed if the load scenario indicator value exceeds the loading threshold. | 2012-02-02 |
20120027567 | MECHANICALLY-COUPLED TURBOMACHINERY CONFIGURATIONS AND COOLING METHODS FOR HERMETICALLY-SEALED HIGH-TEMPERATURE OPERATION - The present invention provides a hermetically sealed turbomachine, such as a motor-driven blower and a turbine driven generator, capable of reliable high-temperature operation, especially for large sized turbomachines. The hot blower, compressor or turbine end of the turbomachine is separated from the cooler electric motor, generator or alternator end of the turbomachine by a compliant mechanical coupling and a thermal choke assembly, providing reliable high-temperature operation. The turbomachine housing is also hermetically sealed, providing control over the process gas within the machine housing, and permitting an internal cooling method within the turbomachine, whereby a small amount of process gas itself is used within the turbomachine for providing cooling of the rotating shafts, the axial fan, radial fan, or turbine impeller, the bearings and the electric motor, generator or alternator disposed within the turbomachine housing. The cooling method can be aided by a heat exchanger operatively communicating with the turbomachine. | 2012-02-02 |
20120027568 | LOW-PRESSURE STEAM TURBINE AND METHOD FOR OPERATING THEREOF - The disclosure relates to a multi-stage low-pressure steam turbine and a method for operating thereof. The steam turbine includes a last stage in which the leading edge of each vane of the last stage is skewed so as to form a W shaped K-distribution across the span of the vanes. This shape allows for efficient last stage operation at low last stage exit velocities. The disclosure includes a method for operating such a steam turbine at a last stage exit velocity between 125 m/s and 150 m/s. | 2012-02-02 |
20120027569 | ROTATING MACHINE WITH SHAFT SEALING ARRANGEMENT - A rotating machine comprising such as an axial power turbine or a turbocharger has a housing with a bearing cavity and a chamber separated by a first wall. A shaft is rotatable about an axis in the bearing cavity, extends through an opening in the first wall and is mounted for rotation on a bearing assembly provided in the bearing cavity. An oil sealing arrangement including an oil diffuser device is arranged on the shaft for displacing oil away from the shaft as it rotates. This restricts the flow of oil to the opening. The oil diffuser device defines a diffuser passage between the bearing assembly and the first wall, the passage extending outwardly of the axis. | 2012-02-02 |
20120027570 | SHAFT ASSEMBLY FOR A GAS TURBINE ENGINE - A shaft assembly for a gas turbine engine includes a shaft, an annular fluid collection cavity, and a bearing. The shaft is rotatable around an axially extending shaft centerline. The annular fluid collection cavity is formed by an axial panel extending between a forward radial panel and an aft radial panel. The aft radial panel includes a plurality of fluid apertures, each fluid aperture having a center disposed at a first radius from the shaft centerline. The bearing includes an inner race having a shaft mounting surface and a plurality of axially extending race fluid passages. The shaft mounting surface is engaged with an exterior surface of the shaft, and is disposed at a second radius from the shaft centerline, wherein the second radius is less than the first radius. At least some of the axially extending race fluid passages are fluidly connected with at least some of the fluid apertures in the aft radial panel. | 2012-02-02 |
20120027571 | Fan and vibration-absorbing boss thereof - A fan including a hub part, a blade part and a vibration-absorbing boss, all constituent elements of which are injection molded, thereby reducing production costs. The fan has a minimized contact area between the vibration-absorbing boss and the hub part to prevent the vibration-absorbing boss from being deformed by high-temperature heat during insert injection molding of the hub part and the blade part while assuring sufficient strength of the hub part. | 2012-02-02 |
20120027572 | TURBINE RING ASSEMBLY - A turbine ring assembly includes a ring support structure and a plurality of ring sectors, each including a single piece of ceramic matrix composite material. Each ring sector includes a first portion forming an annular base with an inside face defining an inside face of the turbine ring and an outside face from which there extends two tab-forming portions including ends that are engaged in housings in the ring support structure. The ring sectors present a section that is substantially π-shaped and the ends of the tabs are held without radial clearance by the ring support structure. The tabs can have a free length in meridian section that is not less than three times their mean width. | 2012-02-02 |
20120027573 | SEAL TEETH FOR SEAL ASSEMBLY - In an embodiment, a seal assembly for a rotating element is disclosed. The seal assembly includes: a plurality of arcuate packing rings configured to form an annulus proximately surrounding the rotating element; and a plurality of radially and circumferentially extending seal teeth coupled to each of the plurality of arcuate packing rings, wherein at least one of the plurality of seal teeth includes a plurality of axially extending protrusions. | 2012-02-02 |
20120027574 | BLADE OUTER AIR SEAL AND REPAIR METHOD - An article of manufacture has a body formed in part of a first metal alloy and in part of a second metal alloy, the second metal alloy having a thermal coefficient of expansion that is less than the thermal coefficient of expansion of the first metal alloy. A BOAS segment for a gas turbine engine is disclosed wherein the formation of cracks due to thermal mechanical fatigue in the body of the disclosed BOAS segment is minimized, if not eliminated, through a unique construction of the disclosed BOAS segment, whether original equipment manufacture or a repaired blade outer air seal. A method for manufacture of a BOAS segment and a method for modifying a BOAS segment are disclosed. | 2012-02-02 |
20120027575 | LABYRINTH SEAL - A labyrinth seal is provided for forming a seal between a first and a second component which rotate relative to each other. The seal has an abradable lining mounted to the first component, and a plurality of fins projecting from the second component. The fins are arranged in abutment with the abradable lining to form a labyrinthal path for a flow of air through the seal. The seal further has a bypass passage which extends through the abradable lining. The bypass passage allows air to flow through the seal and bypass the labyrinthal path. | 2012-02-02 |
20120027576 | TURBINE STAGE SHROUD SEGMENT - A shroud segment for a turbine stage of a gas turbine engine forms an endwall for the working gas annulus of the stage. The segment also provides a close clearance to the tips of a row of turbine blades which sweep across the segment. In use a leakage flow of the working gas passes through the clearance gap between the blade tips and the segment. The segment has a plurality of cooling holes and respective air feed passages for the cooling holes. The cooling holes are distributed over that part of the gas-washed surface of the segment which is swept by the blade tips. The cooling holes deliver, in use, cooling air which spreads over the gas-washed surface. The feed passages are configured such that the delivered air opposes the leakage flow of the working gas. | 2012-02-02 |
20120027577 | AXIAL FAN AND SLIDE MOLD - An axial fan includes an impeller and a housing including a side wall surrounding an outer circumference of the impeller. The side wall preferably includes at least one flat surface portion defined in an outer circumferential surface thereof, and a slit group including slits arranged to be spaced apart in a circumferential direction of an inner circumferential surface and extending in the same direction perpendicular or substantially perpendicular to the flat surface portion from the inner circumferential surface to the outer circumferential surface thereof. Within the slit group, a total number of slits positioned forward, with respect to a rotation direction of the impeller, of a point of contact of the inner circumferential surface with a tangent to the inner circumferential surface which is perpendicular or substantially perpendicular to a through direction of each slit is greater than a total number of slits positioned rearward of the contact point. | 2012-02-02 |
20120027578 | SYSTEMS AND APPARATUS RELATING TO DIFFUSERS IN COMBUSTION TURBINE ENGINES - A discharge diffuser that includes: a forward section and a dump cavity, the forward section being configured to direct discharge from the compressor to the dump cavity; an inner diffuser wall that defines an inner radial flowpath of the upstream section; and an outer diffuser wall that defines an outer radial flowpath of the upstream section; wherein at an aft lip of the inner diffuser wall, the discharge diffuser comprises an overhanging step. | 2012-02-02 |
20120027579 | FAN MODULE AND FAN RAIL THEREOF - A fan module and a fan rail thereof are provided. The fan module includes a fan, two fan rails, and a holder. The fan rails are disposed at both sides of the fan, in which each fan rail includes a main body and a ring, the main body has a first end and a sliding slot. The sliding slot is located at the first end. Each ring has a tab portion and a connecting portion, wherein the connecting portion has a protrusion buckled in the sliding slot. The fan is disposed in the holder by means of the fan rails, and a force is applied on the tab portion to make the protrusion slip in the sliding slot so that the ring suits to move back and forth on a longitudinal direction of the main body relatively to the main body so as to detach the fan from the holder. | 2012-02-02 |
20120027580 | FAN MODULE AND FAN RAIL THEREOF - A fan module and a fan rail thereof are provided. The fan module includes a fan, two fan rails and a holder. The fan rails are respectively disposed at opposite sides of the fan, and each of the fan rails includes a main body and a ring-pull, wherein the ring-pull has a tab portion and a pivot portion, and the pivot portion is pivoted with a first end of the main body. The fan is installed in the holder through the fan rails. The fan is adapted to be drawn out from the holder in an unlock state by rotating the tab portion of each of the fan rails along the pivot portion with respect to the main body and applying a pulling force to the tab portion. | 2012-02-02 |
20120027581 | REINFORCED CONCRETE GAS TURBINE OUTER CASE - A turbomachine outer case includes a pair of outer case sections, each provided with attachment flanges for securing said pair of outer case sections about an internal rotor structure, the pair of outer case sections constructed of a cement composite material. The outer case sections may be lined with a relatively thin metal alloy. | 2012-02-02 |
20120027582 | FLOATING PACKING RING ASSEMBLY - A packing ring assembly for use between a rotating and a stationary component in a turbomachine is disclosed, the assembly including an arcuate packing ring casing, an arcuate packing ring segment positioned at least partially within the packing ring casing, and a resistance component configured to allow movement of the packing ring segment in an axial direction, relative to the rotating component, between a first and second position in response to a pressure condition. In one embodiment, the resistance component allows movement when the pressure condition comprises approximately 30% of the turbomachine load. Also disclosed is an altered surface topography of the rotating component to accommodate variable length teeth extending from the packing ring segment, such that when the packing ring segment is in the first position, a clearance between the packing ring segment and the rotating component is larger than when the packing ring segment is in the second position. | 2012-02-02 |
20120027583 | VACUUM PUMP - A vacuum pump includes a housing, a rotor located in the housing and having a shaft and pump-active elements supported on the shaft, a stator having pump-active elements and located in a separate housing part of the housing, for driving the pump, bearings for rotatably supporting the rotor shaft, and at least one vacuum chamber also located in the separate housing part. | 2012-02-02 |
20120027584 | TURBINE SEAL SYSTEM - In accordance with one embodiment, a system includes a multi-stage turbine including a first turbine stage including a first wheel having multiple first slots spaced circumferentially about the first wheel, and multiple first blade segments each coupled to at least one of the multiple first slots. The multi-stage turbine also includes a second turbine stage including a second wheel having multiple second slots spaced circumferentially about the second wheel, and multiple second blade segments each coupled to at least one of the multiple second slots. The multi-stage turbine further includes a one-piece interstage seal extending axially between the first and second turbine stages, wherein the one-piece interstage seal comprises a first radial support coupled to the first wheel and a second radial support coupled to the second wheel, and the one-piece interstage seal extends circumferentially across at least two of the multiple first slots or at least two of the multiple second slots. | 2012-02-02 |
20120027585 | SYSTEM FOR ACTIVELY MONITORING WEAR ON WIND TURBINE BRAKE PADS AND RELATED METHODS - A system for monitoring wear on a brake pad of a wind turbine is disclosed. The system may include a brake assembly having a brake pad and a moveable component. The brake pad may be configured to engage a friction surface of the wind turbine. The movable component may be configured to move relative to the friction surface as the brake pad wears. Additionally, the system may include a sensor at least partially mounted within the brake assembly. The sensor may be configured to detect a position of the movable component relative to the sensor or a position of the friction surface relative to the sensor. | 2012-02-02 |
20120027586 | METHODS AND APPARATUS FOR CONTROLLING WIND TURBINE THRUST - A wind turbine and methods for controlling wind turbine thrust are disclosed. In one embodiment, the method includes measuring a tilt angle of a wind turbine in a loaded position using a measuring device. The wind turbine includes a tower, a nacelle mounted on the tower, a rotor coupled to the nacelle, and a plurality of rotor blades coupled to the rotor. The method further includes comparing the tilt angle to a predetermined tilt angle for the wind turbine and, if the tilt angle exceeds the predetermined tilt angle, adjusting a pitch of at least one of the plurality of rotor blades such that the tilt angle is less than or equal to the predetermined tilt angle. | 2012-02-02 |
20120027587 | WIND TURBINE TORQUE-SPEED CONTROL - The present subject matter relates to methods and systems for operating a wind turbine that, in some embodiments may include a gearbox. The wind turbine is provided with a blade having an adjustable pitch angle and the tip speed ratio (TSR) of the blade is monitored. In operation, the method and system is configured to increase the pitch angle of the blade concurrently with an increase in TSR to maintain turbine operation within an identified high power coefficient (Cp) operational region for the blade. TSR may be monitored by monitoring one of the velocity of the tip of the blade, wind speed, the rotational speed of the blade, or the rotational speed of a component within the gearbox. | 2012-02-02 |
20120027588 | ROOT FLAP FOR ROTOR BLADE IN WIND TURBINE - A rotor blade assembly and a method for reducing the separation region of a rotor blade for a wind turbine are disclosed. The rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending in a generally span-wise direction between a tip and a root. The rotor blade assembly further includes a flap extending in the generally span-wise direction from the root towards the tip. The flap includes an inner surface and an outer surface, the inner surface conformingly mounted to at least one of the pressure side, the suction side, or the trailing edge, the outer surface and at least one of the pressure side or the suction side defining a generally continuous aerodynamic surface. | 2012-02-02 |
20120027589 | METHOD AND APPARATUS FOR CONTROL OF ASYMMETRIC LOADING OF A WIND TURBINE - A wind turbine ( | 2012-02-02 |
20120027590 | NOISE REDUCER FOR ROTOR BLADE IN WIND TURBINE - A rotor blade assembly and a method for reducing the noise of a rotor blade for a wind turbine are disclosed. The rotor blade has surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade assembly further includes a noise reducer configured on a surface of the rotor blade, the noise reducer including a plurality of noise reduction features. Each of the plurality of noise reduction features includes a first surface and a second surface. The first surface includes a first portion mounted to one of the pressure side or the suction side and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side. The second surface interrupts an aerodynamic contour of the one of the pressure side or the suction side. | 2012-02-02 |
20120027591 | SYSTEM AND METHODS FOR CONTROLLING THE AMPLITUDE MODULATION OF NOISE GENERATED BY WIND TURBINES - In one aspect, a method for controlling the amplitude modulation of the noise generated by wind turbines is generally disclosed. The method may include determining a sound characteristic of a turbine sound wave generated by a wind turbine and generating an additive sound wave based on the sound characteristic such that a resultant sound wave is produced having a peak-to-peak amplitude that is smaller than a peak-to-peak amplitude of the turbine sound wave. | 2012-02-02 |
20120027592 | METHODS FOR CONTROLLING THE AMPLITUDE MODULATION OF NOISE GENERATED BY WIND TURBINES - In one aspect, a method for controlling the amplitude modulation of noise generated by a wind turbine is disclosed. The method may generally include determining an angle of attack of a rotor blade of a wind turbine and maintaining the angle of attack at a substantially constant value during rotation of the rotor blade in order to reduce the amplitude modulation of the noise generated by the wind turbine. | 2012-02-02 |
20120027593 | Blade Arm - The apparatus of the present invention comprises a user adjustable variable axial length and variable pitch ceiling fan blade arm. The blade arm includes a pair of extension elements. Each element is threadably engaged with each other. At the other end of the extension elements are custom flanges for the purpose of attaching a fan blade and connecting the blade arm to a ceiling fan motor. | 2012-02-02 |
20120027594 | ARRANGEMENT FOR LIGHTNING PROTECTION - An arrangement for a lightning protection of a wind turbine blade is provided. According to the arrangement, the blade of the wind turbine is extended by a shaped winglet. A first lightning receptor is arranged at a tip end region of the blade. A second lightning receptor is arranged at the winglet. | 2012-02-02 |
20120027595 | PITCHABLE WINGLET FOR A WIND TURBINE ROTOR BLADE - A rotor blade for a wind turbine is disclosed. The rotor blade may include a blade root, a blade tip and a body. The body may include a base portion extending from the blade root and a winglet extending from the base portion to the blade tip. In addition, at least a portion of the winglet may be configured to be pitched independent of the base portion. | 2012-02-02 |
20120027596 | PLANETARY GEAR SYSTEM - A planetary gear system is disclosed. The planetary gear system includes a carrier, a planet gear defining a central planet axis, and a pin coupling the planet gear to the carrier. The planetary gear system additionally includes a bearing disposed between the planet gear and the pin. The bearing includes a plurality of rolling elements. Each of the rolling elements is in contact with an inner race and an outer race. The planetary gear system further includes a resilient member. The resilient member is disposed between one of the inner race and the pin or the outer race and the planet gear. | 2012-02-02 |
20120027597 | CENTRIFUGAL FAN - A centrifugal fan according to an exemplary embodiment of the present invention includes: a hub penetrated by a rotational axis; a plurality of main blades extended in a radial direction from a predetermined point of the top of the hub; a bell mouth formed on a top of the exteriors of the plurality of main blades; and a plurality of auxiliary blades extended in the radial direction between the plurality of main blades, wherein a ratio (D1/D2) of an inner diameter D1 to an outer diameter D1 of each of the auxiliary blades is in the range of 07 to 0.9. | 2012-02-02 |
20120027598 | ROTOR COVER PLATE RETENTION METHOD - A mechanism for use in a gas turbine engine has a cover plate, a rotor disk, a first slot in the cover plate, a second slot in the rotor disk, a first finger in the cover plate extending through the second slot, and a second finger in the rotor disk extending through the first slot. The first finger and the second finger form a channel and a holder is disposed in the channel for locking the rotor disk and the cover plate together | 2012-02-02 |
20120027599 | IMPELLER AND ROTARY MACHINE - An impeller of a rotary machine, in which the direction of flow changes from an axial direction to a radial direction as it goes from the inside in the radial direction of a fluid flow passage to the outside in the radial direction thereof, includes: a hub surface constituting at least a portion of the fluid flow passage; a blade surface constituting at least a portion of the fluid flow passage; and a bulge that bulges toward the inside of the fluid flow passage at a corner where a pressure surface, which configures the blade surface, comes in contact with the hub surface in the vicinity of an inlet of the fluid flow passage. | 2012-02-02 |
20120027600 | SEPARATIVE TIDAL CURRENT ROTOR BLADE - Provided is a separative tidal current rotor blade including: a hub constituting a body of a rotor; a blade formed by coupling a plurality of blade blocks together; a connecting member for connecting the hub and the blade; and a coupling unit for coupling one end of the connecting member to the hub. The blade can be mass produced and has excellent compactibility by dividing a body unit of the blade into a plurality of blocks and assembling the blocks. Also, manufacturing and maintenance costs and time can be reduced since the body unit of the blade is divided into the blocks. In addition, the blade can be prevented from being damaged since a shock absorbing member is disposed between blade blocks to absorb a sudden shock. | 2012-02-02 |
20120027601 | ROTATABLE COMPONENT MOUNT FOR A GAS TURBINE ENGINE - Radial shifting of a rotatable component in a gas turbine engine is prevented by radially offsetting overlying mounting apertures in said component and a base or mounting flange therefor such that fasteners received within said overlying apertures are radially interference fit within the apertures thereby eliminating the necessity of machining or otherwise forming the apertures to an exact fit with the fasteners. | 2012-02-02 |
20120027602 | HUB ASSEMBLY FOR USE WITH A WIND TURBINE AND METHOD OF MAKING THE SAME - A hub assembly for use with a wind turbine is provided. The hub assembly includes a body formed from a first material, a bearing seat formed integrally with the body, and a support assembly positioned within an opening defined by the bearing seat and at least partially coupled to the body. The support assembly includes an insert formed from a second material different than the first material. | 2012-02-02 |
20120027603 | DUAL BLISKS IN THE HIGH-PRESSURE COMPRESSOR - The invention relates to a high-pressure compressor of a gas turbine having at least one blisk, specifically a disk with a plurality of blades that are disposed on the disk, wherein the blisk has at least one titanium material from the group that comprises Ti-6246 and Ti-6242, wherein the materials of the disk and the blades of the blisk differ in their chemical composition and/or their microstructure. The blades are welded to the disk, in particular, by means of a pressure welding method supported by high-frequency current, whereby the current is conducted through the joint surfaces and leads to local limited melting therein. | 2012-02-02 |
20120027604 | COMPOSITE VANE MOUNTING - A vane includes a composite airfoil having chordwise spaced apart forward and aft dovetail feet at or near leading and trailing edges of the airfoil. Each foot includes a shank connecting a dovetail root to an airfoil base and each root is slidably received in a dovetail slot in an inner vane mount. The dovetail slot has a triangular slot cross section and a flat slot bottom and flat slot pressure and suction side crush faces corresponding to pressure and suction sides of the airfoil. The dovetail root having a triangular root cross section and a flat root bottom and flat dovetail root pressure and suction side crush faces. A biasing means urges the root bottom of the dovetail roots away from the slot bottom and presses and preloads the dovetail root pressure and suction side crush faces against the slot pressure and suction side slot crush faces. | 2012-02-02 |
20120027605 | TURBOMACHINE BLADE, A ROTOR, A LOW PRESSURE TURBINE, AND A TURBOMACHINE FITTED WITH SUCH A BLADE - The invention relates to a turbomachine blade made of composite material and presenting a root with a bulb-shaped end suitable for engaging in a slot of a rotor disk. In characteristic manner, the end of the root of the blade is provided, beside one of its front faces, with a projecting portion having two symmetrical fins about the axial midplane of the root, each fin having a bearing face suitable for limiting tilting of the blade relative to the rotor disk about the axial direction. | 2012-02-02 |
20120027606 | ROTOR ASSEMBLY DISK SPACER FOR A GAS TURBINE ENGINE - A disk spacer for a gas turbine engine includes a rim, a bore, a web and a load path spacer. The web extends between the rim and the bore. The load path spacer is positioned between the rim and the bore. | 2012-02-02 |
20120027607 | NICKEL ALLOY AND ARTICLES - Articles suitable for use in high temperature applications, such as turbomachinery components, and methods for making such articles, are provided. One embodiment is an article. The article comprises a material comprising a plurality of L12-structured gamma-prime phase precipitates distributed within a matrix phase at a concentration of at least 20% by volume, wherein the gamma-prime phase precipitates are less than 1 micrometer in size, and a plurality of A3-structured eta phase precipitates distributed within the matrix phase at a concentration in the range from about 1% to about 25% by volume. The solvus temperature of the eta phase is higher than the solvus temperature of the gamma-prime phase. Moreover, the material has a median grain size less than 10 micrometers. The method comprises providing a workpiece, the workpiece comprising at least about 40% nickel, from about 1.5% to about 8% titanium, and from about 1.5% to about 4.5% aluminum. A weight ratio of titanium to aluminum is in the range from about 1 to about 4, and the workpiece further comprises a plurality of A3-structured ordered eta phase precipitates distributed within the matrix phase at a concentration in the range from about 1% to about 25% by volume. The method further comprises mechanically working the workpiece at a temperature below a solvus temperature of the eta phase; and heat treating the workpiece at a temperature sufficiently high to dissolve any gamma prime phase present in the workpiece but below the solvus temperature of the eta phase. | 2012-02-02 |
20120027608 | Rotor Blade Section and Method for Assembling a Rotor Blade for a Wind Turbine - A rotor blade section and a method for assembling a rotor blade for a wind turbine are disclosed. The rotor blade section includes a plurality of ribs each extending in a generally chord-wise direction. Each of the plurality of ribs includes an outer surface. The outer surface has a generally aerodynamic contour. The rotor blade section further includes at least one cross-member extending between adjacent ribs of the plurality of ribs, and an outer body mounted to the plurality of ribs. The outer body has an aerodynamic contour generally corresponding to the aerodynamic contour of the plurality of ribs. | 2012-02-02 |
20120027609 | WIND TURBINE ROTOR BLADE WITH PRECURED FIBER RODS AND METHOD FOR PRODUCING THE SAME - A wind turbine rotor blade comprises a rotor blade body, including a root portion, a leading edge, a trailing edge, and at least one spar cap; a plurality of parallel, elongated elements of a pre-cured composite material, which comprise fibers and a resin, and a resin connecting the plurality of elements. Further, a method for producing a rotor blade is provided. | 2012-02-02 |
20120027610 | WIND TURBINE BLADE SHEAR WEB WITH SPRING FLANGES - A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a longitudinal length of the blade. A connection assembly is configured between the transverse ends of the shear web and the spar caps. The connection assembly includes spring flange members that extend distally beyond the transverse ends of the shear web at opposite sides of the shear web so as to define a laterally extending float section. A bond paste layer is between the float sections and the spar cap and between the transverse end of the shear web and the spar cap as a result of compression of the spring flanges against the spar cap. | 2012-02-02 |
20120027611 | COMPRESSION MEMBER FOR WIND TURBINE ROTOR BLADES - A rotor blade for a wind turbine is disclosed. The rotor blade may include a body having a pressure side shell and a suction side shell extending between a leading edge and a trailing edge. A spar member may extend between the pressure and suction side shells. Additionally, a removable compression member may extend between the pressure and suction side shells. The compression member may be formed from a compliant material. | 2012-02-02 |
20120027612 | WIND TURBINE BLADE SHEAR WEB CONNECTION ASSEMBLY - A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a longitudinal length of the blade. A connection assembly is configured between the transverse ends of the shear web and the spar caps. The connection assembly includes a spacer member configured on the spar cap. A male/female engagement interface is defined between transverse end of the shear web and the spacer member, and includes an axial extension length to accommodate for variances in shear web length. | 2012-02-02 |
20120027613 | WIND TURBINE BLADE SHEAR WEB CONNECTION ASSEMBLY - A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a longitudinal length of the blade. A connection assembly is configured between the transverse ends of the shear web and the spar caps and includes a channel structure configured on the spar cap. The channel structure includes rigid side walls that extend from the spar cap along the longitudinal sides of the shear web. Bond paste is disposed between the channel structure side walls and the longitudinal sides of the shear web. | 2012-02-02 |
20120027614 | WIND TURBINE BLADE MULTI-COMPONENT SHEAR WEB WITH INTERMEDIATE CONNECTION ASSEMBLY - A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a longitudinal length of the blade and includes first and second components extending from a respective spar cap. An intermediate connection assembly is provided between facing transverse ends of the first and second components, and includes bond paste retaining structure configured relative to the transverse ends to achieve a bond between the transverse ends having desired width and thickness dimensions. | 2012-02-02 |
20120027615 | ROTOR BLADE - A rotor blade for a wind turbine is disclosed. The rotor blade includes an outer shell having exterior surfaces and interior surfaces, the exterior surfaces defining a pressure side and a suction side each extending between a leading edge and a trailing edge, the interior surfaces defining a rotor blade interior. The rotor blade further includes a structural member extending through at least a portion of the interior, and a generally elastic material connecting the structural member to an interior surface. The generally elastic material allows movement of the outer shell with respect to the structural member. | 2012-02-02 |
20120027616 | GAS TURBINE BLADE WITH INTRA-SPAN SNUBBER AND MANUFACTURING METHOD FOR PRODUCING THE SAME - A gas turbine blade ( | 2012-02-02 |
20120027617 | TURBINE NOZZLE SEGMENT AND METHOD OF REPAIRING SAME - A method is provided for repairing a metallic turbine component which includes at least two airfoils interconnected by a mid-span shroud. The method includes: (a) applying a reinforcement plate to the mid-span shroud; (b) applying braze material to at least a portion of a perimeter of the reinforcement plate; (c) heating the component to melt and flow the braze material between the reinforcement plate and the mid-span shroud; and (d) allowing the braze material to cool and solidify so as to bond the reinforcement plate to the mid-span shroud. | 2012-02-02 |
20120027618 | ANGLED BLADE ROOT - A blade root for a wind turbine rotor blade is disclosed. The blade root may generally comprise a substantially cylindrically shaped member extending lengthwise along a longitudinal axis and defining a planar end surface. Additionally, an angle may be defined between the planar end surface and a reference plane extending perpendicular to the longitudinal axis. The angle may be greater than 0 degrees and less than about 10 degrees. | 2012-02-02 |
20120027619 | CAST FEATURES FOR A TURBINE ENGINE AIRFOIL - An airfoil for a turbine engine includes a structure having a cooling passage that has a generally radially extending cooling passageway arranged interiorly relative to an exterior surface of the structure. The cooling passageway includes multiple cooling slots extending there from toward the exterior surface and interconnected by a radially extending trench. The trench breaks the exterior surface, and the exterior surface provides the lateral walls of the trench. The airfoil is manufactured by providing a core having multiple generally axially extending tabs and a generally radially extending ligament interconnecting the tabs. The structure is formed about the core to provide the airfoil with its exterior surface. The ligament breaks the exterior surface to form the radially extending trench in the exterior surface of the structure. | 2012-02-02 |
20120027620 | FORCED VIBRATION PIEZO GENERATOR AND PIEZO ACTUATOR - Piezoelectric elements for power generation and/or actuation are described. An aspect is directed to generators utilizing piezoelectric elements for electrical power generation. Such a generator can use one or more arrays of piezoelectric cantilevers for electrical power generation in conjunction with modulated air pressure used for exciting the cantilevers. The pressure level/modulation and cantilever area can be controlled variables for maximizing the bending, and hence energy generation, of the cantilevers. A further aspect is directed to hydraulic fluid actuators utilizing a pumping mechanism that includes a piezoelectric element. The linear actuators can advantageously utilize the high force and high frequency characteristics of a piezoelectric membrane in conjunction with a large stroke and actuation direction conversion afforded by hydraulic transmission. | 2012-02-02 |
20120027621 | ELECTRIC MOTOR SYSTEM - An electric motor system has a first electric motor, a second electric motor and a control circuit shared by the first motor and the second motor. At least one of the first motor and the second motor is a permanent magnet brushless motor that has a permanent magnet rotor and a stator with stator windings which generate a rotating magnetic field when electrified. The control circuit is configured to control the brushless motor to operate in a synchronous mode so that the rotor rotates in synchronism with the magnetic field of the stator. The electric motor system may be used in a household appliance. | 2012-02-02 |
20120027622 | Peristaltic Pump - A peristaltic pump comprises a pump unit including a pump which receives a replaceable tube. In operation, the pump unit applies a peristaltic action to the tube to induce fluid flow between inlet and outlet ends of the tube. | 2012-02-02 |
20120027623 | METHOD AND DEVICE FOR CONTROLLING A HOT RESTART OF A CENTRIFUGAL COMPRESSOR - Methods, devices and systems capable of performing a hot restart of a compressor driven by a turbine are provided. The turbine has a high speed shaft and a low speed shaft connected to the compressor. A base slow roll speed at which a speed of the low speed shaft is in a slow roll range is maintained at the high speed shaft for a predetermined time. Then, when a vibration amplitude of the compressor is larger than a vibration limit, the maintaining is repeated. Otherwise, a set speed of the high speed shaft is increased, until a current speed of the low speed shaft reaches a minimum operating speed. If, while increasing the set speed, the vibration amplitude becomes larger than the vibration limit, the maintaining is repeated. | 2012-02-02 |
20120027624 | FLUID TRANSPORTER AND FLUID TRANSPORTER DRIVING METHOD - A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor. | 2012-02-02 |
20120027625 | PUMP SYSTEM - The invention relates to a pump system comprising at least one pump unit, a control unit for controlling the pump unit and at least one sensor, wherein the sensor is connected to a data detection module which is spatially separate from the control unit and detects the output signals of the sensor, the data detection module comprises an output interface, at which it provides the detected sensor signals and/or data derived therefrom, and the control unit is provided with an input interface for the acquisition of signals or data from the output interface. | 2012-02-02 |
20120027626 | RETURN TO NEUTRAL MECHANISM FOR HYDRAULIC PUMP - A hydraulic pump includes a housing ( | 2012-02-02 |
20120027627 | COMPRESSOR SYSTEM FOR A PROCESS GAS PLANT HAVING HEAT RETURN, AND THE PROCESS GAS PLANT FOR CARBON DIOXIDE GAS SEPARATION - A compressor system is provided for a process gas plant having heat return. The system includes compressor for compressing a moist process gas. A process gas cooler unit is connected downstream of the compressor for cooling the process gas and includes two gas coolers. The two process gas coolers are connected directly one after the other in an upstream-downstream manner on a process gas side. The two process gas coolers are operable to provide that, first of all, a predetermined heat flow is removable from the process gas from the upstream process gas cooler, to cause a thermodynamic state of the process gas between the first and second process gas coolers to be in the region of the dew point front, and secondly, that the process gas is capable of being cooled to a predetermined temperature by the downstream process gas cooler. | 2012-02-02 |
20120027628 | COMPRESSOR AND OXYGEN CONCENTRATOR - A compressor that generates compressed air by compressing raw air has a case section; a driving motor that is provided in the case section and that has an output shaft; head sections operated by the rotation of the output shaft of the driving motor and that suck and compress raw air to generate thereby compressed air; and a raw air intake section formed of a plurality of raw air intake holes for taking raw air into the case section and supplying the raw air to the head sections. | 2012-02-02 |
20120027629 | FUEL PUMP - A fuel pump has a motor portion and a pump portion, wherein fuel is sucked from an inlet port into the pump portion when an impeller is rotated and the pressurized fuel is discharged out of the fuel pump from an outlet port. A stator has multiple stator cores on which respective stator coils are wound to form a star-connection winding. A terminal sub-assembly is provided in an axial side portion of the stator. The terminal sub-assembly has multiple conductive members and each end portion of the stator coils is respectively connected to connecting portions of the conductive members, which are arranged at equal intervals in a circumferential direction of the terminal sub-assembly. | 2012-02-02 |
20120027630 | VIBRATION METHOD TO DETECT ONSET OF GAS LOCK - Vibration of an electric submersible pump assembly is monitored to produce a vibration spectrum. The vibration spectrum is compared to a known vibration signature for a pump condition that precedes gas lock. The pump condition is at least one of an impeller rotating stall condition, a diffuser stall condition, a pre-surge condition, and percentage of free gas within the wellbore fluid. Operation of the pump is then adjusted in response to the similarity of the vibration spectrum to the vibration signature for the pump condition to prevent impending gas lock. | 2012-02-02 |
20120027631 | AIR COMPRESSOR - A compressor including an oil separator connected to a supply of compressed air, the oil separator including a chamber having a wall defining a cavity within the chamber, and a vent within the wall, wherein the vent is in communication with the supply of compressed air at a first end, and in communication with the cavity via a second aperture, and extends substantially parallel to an externally-facing surface of the wall. | 2012-02-02 |
20120027632 | COMPRESSOR WITH A BYPASS PORT - A system is provided for adjusting the volume ratio of a screw compressor. The system can use a port in a rotor cylinder to bypass vapor from the compression chamber to the discharge passage of the compressor. A valve can be used to open or close the port to obtain different volume ratios in the compressor. | 2012-02-02 |
20120027633 | PISTON REFRIGERATION COMPRESSOR - This refrigeration compressor includes a plurality of compression units, each compression unit having a cylinder head including a refrigerant suction chamber and a refrigerant discharge chamber, a refrigerant distribution device having a distribution pipe and bypass pipes putting the distribution and the suction chambers of the compression units in communication, and a refrigerant discharge device having a discharge pipe and bypass pipes putting the discharge pipe and the discharge chambers of the compression units in communication. The compressor also includes a pressure equilibration means arranged to put the suction chambers of at least two compression units and/or the discharge chambers of at least two compression units in communication. | 2012-02-02 |
20120027634 | SCREW COMPRESSOR - A screw compressor comprises a first meshing body and a second meshing body. The first meshing body has plural helical flutes disposed around a first rotating shaft. The second meshing body has plural projections or lobes disposed around a second rotating shaft. At least one of the projections or lobes is arranged non-uniformly with respect to the other projections or lobes in a circumferential direction of the second rotating shaft. The plural helical flutes are arranged to be meshable with the plural projections or lobes, in a circumferential direction of the first rotating shaft. | 2012-02-02 |
20120027635 | METHOD FOR PRODUCING FLUID DYNAMIC PRESSURE BEARING - The present invention is a method for producing a fluid dynamic pressure bearing made of powder sintered metal and that grooves for generating dynamic pressure are formed on an inner peripheral surface and whose object is to facilitate forming a ferrosoferric oxide (Fe | 2012-02-02 |
20120027636 | HIGH RESISTANCE GRAY IRON ALLOY FOR COMBUSTION ENGINES AND GENERAL CASTS - The object of this application defines a new alloy which presents at the same time the mechanical and physical properties of the gray iron alloy, i.e., excellent machinability, damping vibration, thermal conductivity, low shrink tendency and good microstructure stability, together with a wide interface range of the CGI tensile strength. | 2012-02-02 |
20120027637 | STEEL FOR WELDED STRUCTURE AND PRODUCING METHOD THEREOF - A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.010 to 0.065%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.52 to 2.70%; Ni at a Ni content [Ni] of 0.10% to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; 0 at an O content [O] of 0.0010 to 0.0045%; N at a N content [N] of 0.002 to 0.006%; Mg at a Mg content [Mg] of 0.0003 to 0.003%; Ca at a Ca content [Ca] of 0.0003 to 0.003%; and the balance composed of Fe and unavoidable impurities. A steel component parameter P | 2012-02-02 |