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| Number | Title | Issue Date |
| 8091369 | Method and apparatus for generating electrical power A superheater in a power plant that superheats steam to operation conditions exceeding an operating limit of an associated steam-producing boiler. The superheater combusts oxygen and fuel with cooled recycled combustion gas to produce a CO2-rich combustio... | 01/10/2012 |
| 8020388 | Method for increasing the efficiency of a combined gas/steam power station with integrated gasification combined cycle The invention relates to a method for increasing the efficiency of a combined gas/steam power station (10) with integrated gasification combined cycle. Said power station comprises a gas turbine compressor (14) and an air-separation unit (18) ha... | 09/20/2011 |
| 8020387 | Method of operating a burner, including a combustion chamber with a low nitrous oxide emission There is described a method for operation of a burner, whereby a fuel is supplied to the burner, sprayed into the combustion air, mixed with the combustion air to give a fuel/air mixture and burnt in a combustion chamber. With regard to a combustion particularly low... | 09/20/2011 |
| 8015821 | Apparatus and method for a gas turbine entrainment system This invention relates to an apparatus for an entrainment system of a vortex burning combustion chamber or a vortex burning inter-turbine burner in a gas turbine. The entrainment system rapidly and thoroughly mixes hot combustion gases with non-combustion gases to r... | 09/13/2011 |
| 8015822 | Method for controlling an exhaust gas recirculation system The present invention takes the form of a method and system that may reduce the level of SOx emissions by recirculating a portion of the exhaust of at least one turbomachine; the portion of exhaust may be mixed with the inlet air prior to re-entering the turbomachin... | 09/13/2011 |
| 8011189 | Retrofit of simple cycle gas turbine for compressed air energy storage application having expander for additional power generation A Compressed Air Energy Storage (CAES) system includes a first combustion turbine assembly (42) having a shaft (52) coupled to a motor (54), a compressor (44) and a debladed turbine element (46). A second combustion turbine assembl... | 09/06/2011 |
| 7997081 | Gas delivery system A gas delivery system includes a gas booster module for delivering natural gas from a utility gas service to power generation equipment installed in or around a building in a manner that meets the minimum volume and pressure requirements of the power generation equi... | 08/16/2011 |
| 7997082 | Turbine engine arrangement A turbine engine arrangement includes an electrical machine that acts as a generator or motor. During initial start-up, the electrical machine acts as the motor to drive shaft rotation. The arrangement includes a compressor fan that generates an airflow utilized by ... | 08/16/2011 |
| 7966829 | Method and system for reducing COemissions in a combustion stream Disclosed herein are systems and methods for reducing power plant CO2 emissions. In one embodiment, a method for reducing emissions in a combustion stream, comprises: combusting a gaseous stream to produce an exhaust stream comprising carbon dioxide, and ... | 06/28/2011 |
| 7954330 | Method for operating a power plant and power plant A method for operating a power plant is disclosed. The power plant comprises a power machine and a flue gas flow path following downstream of the power machine. A flue gas flow path is scavenged with fresh air before the flue gas flow path is acted upon with flue ga... | 06/07/2011 |
| 7950238 | Method for detecting onset of uncontrolled fuel in a gas turbine combustor A method is provided for performing a transfer from gas fuel operation to liquid fuel operation in a gas turbine with a dual fuel system. The method includes initiating a predetermined uncontrolled liquid fuel prefill flow rate through the liquid fuel system, sensin... | 05/31/2011 |
| 7942008 | Method and system for reducing power plant emissions A method for operating a power plant to facilitate reducing emissions, wherein the power plant includes a gas turbine engine assembly and a carbon dioxide (CO2) separator. The method includes increasing an operating pressure of exhaust gas discharged from... | 05/17/2011 |
| 7937947 | Gas turbine and manufacturing process of gas turbine The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the c... | 05/10/2011 |
| 7937946 | Small gas turbine engine with lubricated bearings A small gas turbine engine with a bearing cooling and lubricating passage arrangement for a high speed rotor shaft. The engine includes a bypass fan and a compressor. The rotor shaft includes a central passage extending through the entire shaft, and where the rotor ... | 05/10/2011 |
| 7930890 | Method for protecting the hot gas parts of a gas turbine installation from overheating and for detecting flame extinction in the combustion chamber A method for protecting a gas turbine installation from overheating and for detecting flame extinction in the combustion chamber is described, in which air is compressed in a compressor unit and, after being admixed with fuel, is ignited in the form of a fuel/air mi... | 04/26/2011 |
| 7926286 | Heat shield for a fuel manifold A fuel injection system for a gas turbine engine having a manifold ring, a plurality of spray tip assemblies and a heat shield including at least two heat shield segments cooperating to at least substantially surround a cross-section of the manifold ring around a ci... | 04/19/2011 |
| 7913495 | Gas turbine and manufacturing process of gas turbine The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the c... | 03/29/2011 |
| 7874162 | Supercritical steam combined cycle and method A supercritical steam combined cycle system including a gas turbine; a supercritical steam turbine system including a supercritical section, a high pressure section, an intermediate pressure section and at least one low pressure section; and a supercritical steam he... | 01/25/2011 |
| 7874161 | Compressor inlet guide vane flow based anti-ice formation control system and method A system and method are provided for effectively removing ice that may have formed on gas turbine engine compressor inlet guide vanes and/or preventing, or at least inhibiting, reformation of ice on gas turbine engine compressor inlet guide vanes after the ice has b... | 01/25/2011 |
| 7866159 | Variable geometry hysteresis control for a gas turbine engine One embodiment of the present application is a gas turbine engine with a compressor that includes a variable geometry mechanism to vary working fluid flow area. A desired state of this mechanism is selected different than a current state to change the amount of flow... | 01/11/2011 |
| 7861532 | System and methods for heat recovery steam generators hot purging A method for operating an energy system includes calculating an auto-ignition temperature of a fuel in use with the energy system, storing the auto-ignition temperature in a system memory, unloading a gas turbine associated with the energy system to a pre-determined... | 01/04/2011 |
| 7836701 | Infrared suppression system An InfraRed Suppression System (IRSS) vectors engine exhaust flow away from the exhaust manifold plane, the high aspect ratio exhaust duct defined as a ratio of a maximum nozzle length to a maximum nozzle width, the ratio greater than 2:1. ... | 11/23/2010 |
| 7827803 | Method and apparatus for an aerodynamic stability management system A method for using an aerodynamic stability management system is disclosed. The method includes placing at least one pressure sensor in a compressor, the at least one pressure sensor communicating with an aerodynamic stability management system controller and monito... | 11/09/2010 |
| 7793506 | Emission controlled engine exhaust static test stand A method and apparatus for reducing the emission of pollutants resulting from static test firings of rocket and jet engines. The apparatus comprises a test stand for capturing the exhaust gas from an engine undergoing a static test. The test stand includes a duct sy... | 09/14/2010 |
| 7793505 | Gas turbine engine oil system operation A method of operating a gas turbine engine having at least one electric machine associated therewith, the engine having an oil system communicating with an electric oil pump, at least one bearing cavity of the engine and a coolant passage of the electric machine, th... | 09/14/2010 |
| 7762079 | Procedure for controlling the useful life of the gas turbines of a plant A method for controlling the useful life of gas turbines of a production plant includes a) creating a succession of gas generator groups of gas turbines to be subjected to maintenance, b) substituting a first gas generator group of gas turbines of the succession wit... | 07/27/2010 |
| 7762080 | Fuel metering pump calibration method A system and method for accurately supplying fuel flow to a gas turbine engine from a fuel metering pump regardless of variations in operating conditions of the fuel metering pump. The system determines an updated flow characteristic curve for an electrically powere... | 07/27/2010 |
| 7762081 | Compressor inlet guide vane de-ice control system and method A system and method are provided for effectively removing ice that may have formed on gas turbine engine compressor inlet guide vanes and/or preventing, or at least inhibiting, reformation of ice on gas turbine engine compressor inlet guide vanes after the ice has b... | 07/27/2010 |
| 7730726 | Method and apparatus for controlling the combustion in a gas turbine A method and apparatus are described for controlling the combustion in a gas turbine. The method includes measuring, with one or two calorimeters, the temperature, calorific value and relative density of a gaseous fuel in order to determine the Wobbe index, comparin... | 06/08/2010 |
| 7703289 | Internal fuel manifold having temperature reduction feature A fuel manifold assembly for a gas turbine engine comprises an annular fuel manifold and a plurality of fuel nozzles circumferentially distributed about the fuel manifold. The fuel manifold has at least one fuel conveying passage in fluid flow communication with the... | 04/27/2010 |
| 7685826 | Methods and apparatus for performing engine maintenance A maintenance tool for a gas turbine engine includes a housing coupled to the gas turbine engine, and a drive portion inserted at least partially through the housing. The drive portion is configured to enable the gas turbine engine to be selectively rotated during n... | 03/30/2010 |
| 7669422 | Combustor liner and method of fabricating same A combustor liner includes a liner having an upstream end and a downstream end having a longitudinal axis extending therethrough, and a plurality of cooling holes formed in the liner, the cooling holes are arranged along the longitudinal axis into a plurality of cir... | 03/02/2010 |
| 7634913 | Bearing assembly and method of monitoring same A method for predicting bearing failure of a differential bearing including an inner race, an outer race, and a plurality of rolling elements positioned between the inner and outer race. The method includes coupling a strain gage to the differential bearing, generat... | 12/22/2009 |
| 7631504 | Methods and apparatus for assembling gas turbine engines A combustor assembly is provided. The combustor assembly includes a combustion chamber and at least one transition portion extending downstream from the combustion chamber to facilitate channeling combustion gases from the combustor assembly. The assembly also inclu... | 12/15/2009 |
| 7617686 | Method for determination of the temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine The invention relates to a method for determination of a temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine or the like, particularly during partial load operation of the gas turbine. The invention also relates to a control apparatu... | 11/17/2009 |
| 7614237 | CAES system with synchronous reserve power requirements A CAES system (10) includes an air storage (18), a compressor (20) supplying compressed air to the air storage, a power generating structure (11, 102), a heat exchanger (24), an auxiliary combustor (27), an air expander (... | 11/10/2009 |
| 7596953 | Method for detecting compressor stall precursors A method of detecting onset of a gas turbine condition, such as compressor stall, includes receiving data indicative of an operating parameter of a compressor of the gas turbine. The method also includes performing a wavelet transformation on the data to generate wa... | 10/06/2009 |
| 7596952 | Process and a plant for recycling carbon dioxide emissions from power plants into useful carbonated species A process is disclosed for recycling carbon dioxide emissions from a fossil-fuel power plant into useful carbonated species The process primarily comprises the steps of: a) burning the fossil fuel, thereby generating heat and a hot exhaust gas containing CO2 | 10/06/2009 |
| 7581401 | Methods and apparatus for cooling gas turbine engine components A method for cooling a turbine assembly component of a gas turbine engine in a combined-cycle power generation system. The method includes channeling cooling fluid that is extracted from a source external to the gas turbine engine to the turbine assembly component, ... | 09/01/2009 |
| 7571611 | Methods and system for reducing pressure losses in gas turbine engines A method of assembling a combustor assembly is provided, wherein the method includes providing a combustor liner having a centerline axis and defining a combustion chamber therein, and coupling an annular flowsleeve radially outward from the combustor liner such tha... | 08/11/2009 |
