Bizarre Patents
A new toilet tank assembly aquarium for housing aquatic creatures.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8141368 | Thermal management for fuel injectors Methods of managing fuel temperatures in fuel injectors for gas turbine engines include cooling fuel circuits by initiating fuel flow therethrough using opened, closed, and semi-open control techniques. A fuel injector for a gas turbine engine includes a feed arm ha... | 03/27/2012 |
| 8127557 | Control systems and method for controlling a load point of a gas turbine engine Control systems and a method for controlling a load point of a gas turbine engine are provided. A control system includes a controller that receives a temperature signal and a pressure signal associated with exhaust gases from the gas turbine engine. The controller ... | 03/06/2012 |
| 8074454 | Combination power plant and method for the cooling thereof The invention relates to a combination power plant which is embodied as a single shaft, power plant, essentially consisting of a gas turbine, a steam turbine and a generator which is connected therebetween. A coupling is arranged between the generator and the steam ... | 12/13/2011 |
| 7997083 | Method and system for detection of gas turbine combustion blowouts utilizing fuel normalized power response A method and controller for identifying lean blowout conditions in a Dry Low NOx (DLN) combustor during a premix mode. An effective approach to quickly and reliably identify a blowout during operation in the premix mode is by the effect on fuel normalized... | 08/16/2011 |
| 7992392 | Method for regulating the flow rate of fuel to a turboshaft engine in acceleration or in deceleration Apparatus for regulating the flow rate of fuel to a turboshaft engine in acceleration or in deceleration, the engine having a free turbine and a core engine, the apparatus comprising sensors transmitting information to regulator means, said information relating: to ... | 08/09/2011 |
| 7845177 | Metering demand fuel system A fuel system includes first and second drive assemblies that are independently drivable relative to one another. The second drive assembly has a speed that is selectively controlled based upon a desired fuel flow. A non-positive displacement pump is driven by the f... | 12/07/2010 |
| 7823388 | Gas turbine engine control system In a gas turbine engine control system having a first valve for regulating the flow rate of fuel in premixed combustion and a second valve for regulating that in diffusion combustion, when the combustion mode is switched from one mode to the other mode, whichever of... | 11/02/2010 |
| 7739873 | Gas turbine engine combustor hot streak control A gas turbine engine combustion system includes a plurality of fuel injectors circumferentially disposed around a combustor in a one to one fuel supply relationship with a plurality of fuel nozzle valves, and an electronic controller for controlling the fuel nozzle ... | 06/22/2010 |
| 7698897 | Engine control It is known that overshoot in fuel flow rate as a result of compensating for engine heat soak effects can create transient over values in desired thrust parameters. These over values may be displayed and/or utilised in other engine control systems, and although tran... | 04/20/2010 |
| 7681401 | Methods and systems for operating a gas turbine A method of operating a gas turbine is provided, wherein the gas turbine engine is coupled to an electrical grid operating at a standardized grid frequency value, and the gas turbine includes a combustor coupled in flow communication with a plurality of independent ... | 03/23/2010 |
| 7634914 | Corrected parameter control method for a two-shaft gas turbine A control method for a gas turbine engine is described. The control method includes, for example, corrected control parameters which are adjusted for environmental and/or operating parameters. Control of a fuel valve and a bleed valve in the gas turbine are describe... | 12/22/2009 |
| 7614238 | Method for lean blowout protection in turbine engines A lean blowout protection system and method is provided that facilitates improved lean blowout protection while providing effective control of turbine engine speed. The lean blowout protection system and method selectively and gradually biases the lean blowout (LBO)... | 11/10/2009 |
| 7610760 | Two-displacement setting variable displacement pump used as engine over-thrust protection with fuel system thermal benefit A fuel delivery system (10) comprises a variable displacement pump (20) for pressurizing fuel. The variable displacement pump has a distinct first pump displacement setting for a first desired mass flow of fuel and a distinct second pump displacement s... | 11/03/2009 |
| 7587900 | Gas turbine engine fuel control system having a transfer valve and a shutoff valve and a common controller therefor A fuel control system for a gas turbine engine includes a metering valve for metering a flow of fuel, a throttling valve for maintaining a pressure drop across the metering valve, the throttling valve being shiftable between an open state and a shutoff state blockin... | 09/15/2009 |
| 7584616 | Method for the operation of a gas turbo group A method for operating a gas turbine set comprises the compression of an air mass flow in a compressor, feeding the compressed air mass flow into a first combustion chamber, burning the first mass fuel flow in the first combustion chamber in the compressed mass air ... | 09/08/2009 |
| 7549293 | Pressure control method to reduce gas turbine fuel supply pressure requirements A system and method to reduce the gas fuel supply pressure requirements of a gas turbine, which results in an increased operability range and a reduction in gas turbine trips. According to the method, the gas turbine is allowed to start and operate at supply pressur... | 06/23/2009 |
| 7549292 | Method of controlling bypass air split to gas turbine combustor Disclosed herein is a method for controlling a bypass air split for a gas turbine combustor, the method comprising determining a target exhaust temperature, wherein the target exhaust temperature is based on at least one parameter of a group of parameters consisting... | 06/23/2009 |
| 7530232 | Method for regulating the flow rate of fuel to a turboshaft engine in acceleration or in deceleration Apparatus for regulating the flow rate of fuel to a turboshaft engine in acceleration or deceleration, the engine having a free turbine and a core engine, the apparatus including sensors transmitting information to regulator elements, the information relating: to a ... | 05/12/2009 |
| 7451601 | Method of tuning individual combustion chambers in a turbine based on a combustion chamber stratification index A method, system and software for reducing combustion chamber to chamber variation in a multiple-combustion chamber turbine system comprising sensing dynamic combustion pressure tones emitted from combustion chambers in a multiple combustion chamber turbine and dete... | 11/18/2008 |
| 7430868 | Method of operating a thermal power plant A method of operating a thermal power plant, such as a gas turbine power plant, in which a rotary unit, such as at least one gas turbine stage, is driven by burning gaseous fuel inside a combustion chamber, with hot gases being formed, the rotary energy of which rot... | 10/07/2008 |
| 7424360 | Overspeed control system for gas turbine electric powerplant A turbine overspeed control system for use with a gas turbine engine of a gas turbine electrical powerplant. The overspeed control system preferably comprises a first and second overspeed control subsystem. When an overspeed condition of the gas turbine engine is de... | 09/09/2008 |
| 7404294 | Gas turbine and a method for controlling a gas turbine Method and arrangement for providing and controlling a gas turbine (1) at least one turbine (11, 20, 20′), at least one compressor (2, 5) driven by the turbine and a combustion chamber (16) arranged between the compressor and the turbin... | 07/29/2008 |
| 7383167 | Methods and systems for modeling power plants A modular method of modeling a power plant includes selecting a major component module model from a library of component module models for each major component of the power plant, with each major component module representing a power plant major component of a uniqu... | 06/03/2008 |
| 7369932 | System and method for turbine engine fault detection using discrete event system modeling A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis. The fault detection system and method receives sensor taken at multi... | 05/06/2008 |
| 7367193 | Auxiliary power unit control method and system An adjustment method and system for an auxiliary power unit (APU) allows the APU speed to vary based on the inlet air temperature to the APU compressor. The APU is controlled by a control law that allows the APU speed to float within a selected range based on speed ... | 05/06/2008 |
| 7356999 | System and method for stability control in a centrifugal compressor A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability... | 04/15/2008 |
| 7355297 | Methods and apparatus for electric power grid frequency stabilization A method and apparatus for operating a combined-cycle power system is provided. The system is coupled to an electric power grid. The system includes at least one electric power generator, at least one steam turbine coupled to the generator, at least one combustion t... | 04/08/2008 |
| 7353654 | Method and apparatus for achieving power augmentation in gas turbines using wet compression A gas turbine unit and method of operation thereof are disclosed. A very quick and easily controllable augmentation or reduction of shaft power produced by the gas turbine unit, in particular of large gas turbine units exhibiting a pressure ratio larger than 15 bar,... | 04/08/2008 |
| 7353655 | Method and apparatus for achieving power augmentation in gas turbine using wet compression A gas turbine unit as well as a method for operating a gas turbine with high-pressure turbine and a low-pressure turbine unit are disclosed. A very quick and at the same time easily controllable augmentation or reduction of the shaft power of the gas turbine unit ca... | 04/08/2008 |
| 7353647 | Methods and apparatus for assembling gas turbine engines A method facilitates assembling a gas turbine engine including a compressor and a rotor assembly coupled in axial flow communication downstream from the compressor. The method comprises coupling a bypass system in flow communication with the compressor to channel a ... | 04/08/2008 |
| 7351179 | Stepper motor driven proportional actuator A low energy stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. The cam rotation increases the gap between the cam and nozzle on one side of the cam and decreases the g... | 04/01/2008 |
| 7340901 | Control logic for fuel controls on APUs Conventional auxiliary power units (APUs) may experience over-temperature shutdowns when attempting to start them at high altitudes. Further, such conventional APUs may also experience overspeed conditions when a generator load is removed during on-speed operations.... | 03/11/2008 |
| 7337614 | Engine fueling method A gas turbine engine is piloted with a pilot flow of fuel delivered to a combustor as a liquid. A first additional flow of the fuel is also delivered to the combustor as a liquid. A second additional flow of the fuel is vaporized and delivered to the combustor as a ... | 03/04/2008 |
| 7336000 | Electrical power regulation for a turbogenerator and generator associated with an internal combustion engine A speed monitor for establishing a lower threshold and an upper threshold for a speed of a rotor or shaft of a turbogenerator. A speed detector detects speed data or a speed signal for a rotor or shaft associated with a turbogenerator. A turbogenerator controller co... | 02/26/2008 |
| 7337057 | Methods and apparatus for predicting and/or for avoiding lean blow-outs A method for predicting lean blow-outs (LBOs) in a gas turbine engine includes extracting a plurality of tones in pressure signals representative of pressure within monitored combustor cans, tracking a frequency of a hot tone in each monitored can, and utilizing the... | 02/26/2008 |
| 7334391 | Electric power supply equipment An electric power supply system capable of maintaining stable power generation or the like regardless of variation in the amount of fuel gas being supplied and variation in the gas calorie, comprises a gas engine, a gas turbine, a suction device configured to collec... | 02/26/2008 |
| 7333861 | Method and system for calculating marginal cost curves using plant control models A method and system are provided for calculating a marginal cost curve for a plant at a plant load range comprising a plurality of specified plant loads. The method includes providing a model used for controlling the plant. The model relates plant load and one or mo... | 02/19/2008 |
| 7327045 | Fuel delivery system and method providing regulated electrical output In a mobile fuel delivery vehicle, providing bulk aircraft fuel from a pressurized fuel reservoir to an aircraft, a method of regulating electrical output of an electrical power source, includes the steps of: (a) receiving, in a fluid path, the bulk aircraft fuel fr... | 02/05/2008 |
| 7322198 | System for vaporization of liquid fuels for combustion and method of use A gas stream with a reduced oxygen concentration relative to ambient air is used to vaporize a liquid fuel or liquefied higher hydrocarbon gas, or is mixed with a vaporized gas, and the reduced oxygen vaporized fuel gas is fed to a combustion device such as a premix... | 01/29/2008 |
| 7310950 | Inlet airflow cooling control for a power generating system A power generating system (20) includes a generator (22) and a combustion turbine (24) for driving the generator (22). The combustion turbine (24) may have a combustion turbine air inlet (30) for receiving an inlet airflow (... | 12/25/2007 |
