ANSALDO ENERGIA S.P.A. Patent applications |
Patent application number | Title | Published |
20150261891 | SYSTEM FOR INTEGRATED DESIGN OF ELECTRIC PLANT OF AN INDUSTRIAL SITE - An integrated design system for an electric plant of an industrial site includes: a central processing unit; terminal stations connected to the central processing unit; and a storage unit. The central processing unit includes: a database management module to receive data from the terminals and organize the incoming data in databases; a first computing module, to determine specifications of lighting bodies to be installed according to the content of the databases; and a second computing module, cooperating with the first computing module to determine the sizing and routing of electric cables at least for the lighting bodies, according to the content of the databases. The databases include a lighting database containing values of a first set of parameters relating to environments of the industrial site. | 09-17-2015 |
20150159278 | ALLOY COMPOSITION FOR THE MANUFACTURE OF PROTECTIVE COATINGS, ITS USE, PROCESS FOR ITS APPLICATION AND SUPER-ALLOY ARTICLES COATED WITH THE SAME COMPOSITION - Alloy composition for the manufacture of protective coatings, comprising cobalt, nickel, chromium, aluminium, yttrium and iridium in amounts so as to obtain the phases α, β and σ, in particular for coating a super-alloy article. Preferably, such super-alloy article is a turbine component. | 06-11-2015 |
20130043823 | CONTROL DEVICE FOR AN ASYNCHRONOUS ELECTRIC MACHINE, ELECTRIC PROPULSION SYSTEM COMPRISING SAID DEVICE, AND METHOD FOR CONTROLLING AN ASYNCHRONOUS ELECTRIC MACHINE - A control device for an asynchronous electric machine comprises a first computing unit configured for defining a first signal, which is correlated to an operating voltage to be applied to the electric machine. The first signal is defined as a function of a second signal indicating a desired stator frequency of the operating voltage, and as a function of a third signal indicating a desired slip frequency of the electric machine. | 02-21-2013 |
20120167581 | Method of controlling a combined-cycle system in single-shaft configuration, and combined-cycle system in single-shaft configuration - A combined-cycle system includes a compressor, a gas turbine, a steam turbine, and an electric generator, which are coupled to the same shaft. A method of controlling the system envisages detecting a current compression ratio of the compressor, calculating a normalized compression ratio on the basis of the current compression ratio, and determining a load condition of the gas turbine on the basis of the normalized compression ratio. Moreover, a setpoint is selected, for at least one operating quantity of the gas turbine, and regulating signals are applied to actuators of the gas turbine so that the operating quantity of the gas turbine tends to reach the setpoint. | 07-05-2012 |
20120161361 | METHOD FOR POURING RESIN IN A STATOR OF AN ELECTRIC MACHINE, IN PARTICULAR AN AXIAL FLUX ELECTRIC MACHINE - A method for pouring resin in a stator ( | 06-28-2012 |
20120153881 | VECTOR CONTROL METHOD FOR ELECTRIC MOTORS - A vector control method for electric motors, characterized in that it comprises the steps of: supplying a reference vector (Vout | 06-21-2012 |
20120146565 | DEVICE AND METHOD FOR DRIVING AN ELECTRIC MACHINE FOR ABATING AND MASKING DISTINCTIVE ACOUSTIC EMISSIONS - A device for driving an electric motor includes: an inverter circuit, configured for converting a d.c. supply signal into an a.c. supply signal; and a control block, connected to the inverter circuit and configured for controlling the inverter circuit by means of a pulse-width modulation, having a given cycle-period value. The driving device further includes a first random-number generator, connected to the control block and configured for supplying to the control block pseudo-random or random cycle-period values. | 06-14-2012 |
20120111020 | CONTROL METHOD FOR COOLING A TURBINE STAGE IN A GAS TURBINE - A control method for cooling a turbine stage of a gas turbine, whereby cooling air is bled from combustion air flowing in a compressor of the gas turbine, and is fed to a cooling circuit staring from a stator of the turbine stage; and cooling airflow is adjusted as a function of the pressure at the inlet of the cooling circuit, and as a function of the combustion air pressure at the exhaust of the compressor; more specifically, there is a feedback control setting a setpoint, which is predetermined as a function of the power output of the turbine to reduce contaminating emissions. | 05-10-2012 |
20110048116 | APPARATUS FOR EXPERIMENTAL INVESTIGATION OF AXIAL SEAL SYSTEMS OF GAS TURBINES - An apparatus for experimental investigation of axial seal systems of gas turbines includes a test structure having a test chamber, which is delimited by a first seal portion and by a second seal portion and extends along an axis. At least one of the first seal portion and the second seal portion is provided with a series of ribs transverse to the axis The first seal portion and the second seal portion are arranged facing each other so as to form an axial seal system according to the axis. Furthermore, the first seal portion and the second seal portion are at least partially made of a transparent material. | 03-03-2011 |
20100320775 | CONTROL DEVICE AND METHOD OF A GAS TURBINE ELECTRIC ENERGY PRODUCTION PLANT - A control device of a gas turbine electric energy production plant, which delivers a power at a frequency presents power control means for controlling the power delivered by the plant according to a reference power value, and frequency control means, for determining correction values of the reference power value according to a frequency error, given by the difference between the plant frequency and a nominal frequency, which comprise integral control means configured to calculate the correction values and selectively activatable when the frequency error is beyond a first frequency range. | 12-23-2010 |
20100312408 | CONTROL DEVICE AND METHOD OF A GAS TURBINE ELECTRIC ENERGY PRODUCTION PLANT - A control device of a gas turbine electric energy production plant, which delivers a power at a frequency presents power control means, for controlling the power delivered by the plant by means of a first control signal which determines the supply of fuel to a portion of the plant according to a reference power value, and frequency control means, for determining correction values of the reference power value according to a frequency error, given by the difference between the plant frequency and a nominal frequency which comprise step control means configured to adjust the supply of fuel to the portion of the plant by means of a second control signal concurrent with the first control signal, when the derivative of the frequency of the plant assumes values higher than a threshold value. | 12-09-2010 |
20100254809 | STEAM TURBINE STAGE - A stage of a steam turbine, having a rotor extending along a longitudinal axis, has a fixed stage and a movable stage arranged successively along a flow channel for feeding steam in a direction substantially parallel to the longitudinal axis; the fixed stage has an inner ring coaxial with the longitudinal axis, and a number of stator blades arranged radially about the inner ring; each stator blade is fixed to an annular top portion of the inner ring, which has a top surface facing the flow channel and crosswise to the longitudinal axis; and the movable stage has a number of rotor blades arranged radially about the rotor and fixed to the rotor. | 10-07-2010 |
20100143154 | SPACER FOR GAS TURBINE BLADE INSERT - A gas turbine blade has: a main hollow body substantially extending along a longitudinal axis and having a leading edge, a trailing edge, opposite to the leading edge, a suction side, and a pressure side, both comprised between the leading edge and the trailing edge; a hollow cooling element extending along the axis, which is equipped with a plurality of cooling holes and is set within the main body so as to define a gap between the main body and the cooling element; and a rib, which is set within the gap for connecting the main body with the cooling element on the suction side, in an area of the main body without holes for communication between the gap and the outside of the blade. | 06-10-2010 |
20100126013 | MAINTENANCE METHOD OF A GAS TURBINE UNIT AND GAS TURBINE UNIT - A maintenance method of a gas turbine unit, having a first stator element provided with first connecting holes contemplates replacing a second stator element, provided with second connecting holes and connected to the first stator element by means of coupling pins insertable into the first and the second connecting holes, with a third spare stator element provided with third connecting holes; and coupling the first stator element to the third spare stator element by means of eccentric coupling pins and eccentric bushes, each of which is selectively insertable in the first and the third connecting holes. | 05-27-2010 |
20100088161 | METHOD AND TOOL FOR CORPORATE KNOW-HOW AND INTELLECTUAL PROPERTY ASSETS REPRESENTATION AND MANAGEMENT - A graphic tool and a method are provided, to represent corporate data in terms of know-how and intellectual property management risk and in terms of corporate functional breakdown by asset. The tool and method may be used to evaluate risk associated with events related to know-how and intellectual property management and capable of affecting or interrupt production. The tool and method also allow analysis of company production structure, for the purpose of functional or corporate reorganization. | 04-08-2010 |
20100014986 | SEALING ELEMENT FOR A GAS TURBINE, A GAS TURBINE INCLUDING SAID SEALING ELEMENT AND METHOD FOR COOLING SAID SEALING ELEMENT - A sealing element for a gas turbine, which is provided with at least one rotor ring and at least a plurality of rotor blades radially arranged about the rotor ring and having an end portion fixed to the rotor ring, is provided with a wall, which is adapted to be coupled to the rotor ring and to at least one rotor blade, has an external face adapted to be arranged in contact with a hot working fluid in the gas turbine and an internal face adapted to be arranged in contact with a cooling fluid of the gas turbine, and a gap, which is adapted to be travelled through by the cooling fluid. | 01-21-2010 |
20100005869 | METHOD OF ANALYSIS OF SECONDARY-AIR CIRCUITS IN GAS-TURBINE PLANTS - A method of analysis of secondary-air circuits in gas-turbine plants includes defining an equivalent fluid-dynamic network of a secondary-air circuit of a gas-turbine plant. The equivalent fluid-dynamic network includes a plurality of elements, organized in branches and connected to nodes. For at least one element of the secondary-air circuit a principal component of flow and at least one auxiliary component of flow are calculated. | 01-14-2010 |
20100000063 | METHOD AND DEVICE FOR REPAIRING THE LIQUID-COOLED ELECTRICAL WINDINGS OF THE STATOR OF AN ELECTRIC GENERATOR - A method for repairing the liquid-cooled electrical windings of the stator of an electric generator, in which each electrical winding has a plurality of bars, which are set alongside one another and, in part, have channels for conveying the cooling fluid, and a terminal, which has, on one side, an opening, inserted in which are the ends of the bars and, on the other side, a fitting for connection to a connector pipe for supply or discharge of the cooling fluid, envisages the steps of: a) cutting the terminal into a first portion comprising the opening, and a second portion comprising the fitting, the cut producing a first cutting surface along the first portion; b) cleaning the free ends of the bars housed in the first portion; c) hermetically joining the free ends of the bars to one another and to the first portion via TIG welding in a helium atmosphere; d) facing the first cutting surface; e) selectively regulating the position between the second portion and the first portion for re-composing the terminal; f) induction brazing the second portion to the first portion; and g) performing at least one of the steps a), d) and e) by means of a repair device, which can be anchored to the first portion. | 01-07-2010 |
20090175755 | ALLOY COMPOSITION FOR THE MANUFACTURE OF PROTECTIVE COATINGS, ITS USE, PROCESS FOR ITS APPLICATION AND SUPER-ALLOY ARTICLES COATED WITH THE SAME COMPOSITION - Alloy composition for the manufacture of protective coatings, comprising cobalt, nickel, chromium, aluminium, yttrium and iridium in amounts so as to obtain the phases α, β and σ, in particular for coating a super-alloy article. Preferably, such super-alloy article is a turbine component. | 07-09-2009 |
20090025394 | Method For Starting A Gas Turbine Equipped With A Gas Burner, And Axial Swirler For Said Burner - Method for starting a gas turbine equipped with a burner, which has an axial swirler for generating turbulence in a flow of comburent air, a secondary supply line of fuel gas, a main supply line of fuel gas arranged concentrically around the secondary line, and a pilot line of fuel gas; according to the method, the burner is ignited by firing a spark and feeding, towards said spark, comburent air and fuel gas which is synthesis gas | 01-29-2009 |
20080216481 | System for Damping Thermo-Acoustic Instability in a Combustor Device for a Gas Turbine - A system for damping thermo-acoustic instability in a combustor device for a gas turbine, the combustor device including at least one combustion chamber, in particular of an annular type, and at least one burner associated to the combustion chamber and mounted in a position corresponding to a front portion set upstream of the combustion chamber; the damping system including at least one Helmholtz resonator including a casing defining inside it a pre-set volume and a neck for hydraulic connection between the pre-set volume and the combustion chamber, the neck being connected to one side of the combustion chamber at a distance from the front upstream portion thereof provided with the at least one burner. The casing of the resonator includes structure which varies the pre-set volume within a pre-set range and structure which delivers a cooling fluid. | 09-11-2008 |