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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...
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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...
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7610746 |
Combustion control device for gas turbine
A combustion control device for a gas turbine is capable of determining respective fuel flow rate control valve position command values based on fuel ratios. The combustion control device for a gas...
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7607285 |
Four mode thermal recirculation throttle valve
A thermal recirculation throttle valve ( 1 ) for an aircraft fuel system includes a housing ( 11 ) having a throttling valve chamber; a cover ( 5 ) operatively engaging a first side of the housing...
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7600369 |
Gas turbine load control device
A gas turbine load control device includes load setting means, first bias setting means, second bias setting means, target output setting means, and so forth. The target output setting means sets...
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7596939 |
Gas turbine apparatus
A gas turbine apparatus has an air compressor for compressing air, a combustor capable of combusting the compressed air, a turbine rotatable by a gas discharged from the combustor, and a...
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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...
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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...
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7571045 |
Control system for gas-turbine engine
In a gas-turbine engine control system having a first control channel inputting the outputs of sensors to calculate and output a first command value indicative of a quantity of fuel to be supplied...
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7568349 |
Method for controlling combustion device dynamics
A method for controlling a combustion dynamics level within a combustion device includes defining a high dynamics operating state at a first fuel split ratio. The first fuel split ratio is a ratio...
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7565805 |
Method for operating gas turbine engine systems
Methods and systems for operating a gas turbine engine system include an electrical generator configured to provide electrical energy to a load, a gas turbine engine including at least one...
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7565792 |
Fuel gas heating control equipment and gas turbine power generation facility provided with the fuel gas heating control equipment
A fuel gas heating control equipment in accordance with the present invention is provided with a gain-determining portion 21 and a time-constant-determining portion 22 which determine values of...
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7552015 |
Apparatus and method for displaying mass flow controller pressure
A mass flow controller includes a pressure sensor that senses pressure within the mass flow controller and displays the pressure. The pressure display may be local, mounted directly to the mass...
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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...
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7540141 |
Smart fuel control system
A fuel control system uses a fuel pump powered by a variable speed pump motor controlled by a closed loop electronic feedback system that tracks motor speed and corrects fuel pump motor speed so...
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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...
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7530216 |
Control system for a gas turbine engine
In a control system for a gas turbine engine, a degradation level of the gas turbine engine is estimated according to a deviation of an output of an internal temperature sensor when the engine is...
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7526911 |
Gas turbine engine fuel system with fuel metering valve
A gas turbine engine fuel metering valve is configured to move within an operating position range having a first end position for establishing a first fuel flow rate, a second end position for...
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7513117 |
Method for operating a furnace
A method for operating a furnace with a multi-burner system for generating a hot gas is provided. The furnace has a combustion chamber with a plurality of burners, each having a fuel feed. The...
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7513099 |
Temperature measuring device and regulation of the temperature of hot gas of a gas turbine
The invention relates to a regulation of the temperature of a hot gas of a gas turbine, particularly of a stationary gas turbine used for generating electricity, which comprises an injecting device...
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7497668 |
Gas supply arrangement and associated method, particularly for a gas turbine
A method for operating a gas-supply system, particularly for a gas turbine, having a gas-carrying pipeline, a controllable compressor arranged in the pipeline and at least one consumer connected to...
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7493752 |
Control system for aircraft engine
A control apparatus 50 for a gas turbine engine for an aircraft includes engine control means 52 forming part of an outer fuel control loop and fuel control means/overthrust protector 76 ...
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7484352 |
Combustor for a gas turbine
In a combustor ( 1 ) for a gas turbine, the combustor ( 1 ) includes a burner system ( 2 ) and a fuel supply system ( 3 ). The burner system ( 2 ) includes at least two burner groups (A, B) each...
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7472540 |
Method and device for compensating variations in fuel composition in a gas turbine system
The invention relates to a method for compensating variations in fuel composition in a gas turbine system consisting of at least two parallel-operated burner stages, wherein the fuel supply to at...
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7457688 |
Method and system for detection and transfer to electrical island operation
A method for transient fuel control for fuel delivery circuits for a plurality of connected gas turbines, the method includes: detecting a transient grid event based on an indication of at least...
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7454892 |
Systems and methods for detection and control of blowout precursors in combustors using acoustical and optical sensing
The present invention comprises methods for detecting and controlling flame blowout in combustors. The blowout precursor detection system comprises a combustor, a blowout precursor detection unit,...
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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...
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7441398 |
NOx adjustment system for gas turbine combustors
An embodiment may comprise a system for controlling NOx emissions from a turbine having combustion chambers. The system may comprise a center fuel flow and a plurality of outer fuel flows for each...
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7437871 |
Automatic engine protection system for use when electronic parts of a control system are exposed to overtemperature conditions
An automatic engine protection system for use when electronic parts of the control system are exposed to overtemperature conditions. A thermally sensitive component, such as an engine electronic...
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7434403 |
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...
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7431569 |
Pump health monitoring
A method of monitoring the health of a positive displacement hydraulic pump comprising the steps of:
establishing a flow path having a known flow number between a high pressure outlet line...
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7431015 |
Fuel metering system proportional bypass valve error compensation system and method
A method and system for controlling fuel flow in a fuel metering system that includes a metering valve and a proportional bypass valve that produces a differential pressure error across the...
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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...
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7406820 |
System and method for turbine engine adaptive control for mitigation of instabilities
The present invention provides an adaptive combustion controller and method for a turbine engine. The adaptive combustion controller and method modulates the fuel flow to the turbine engine...
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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...
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7395655 |
Regulator feeding control with two flow rate laws
Hydromechanical regulator for controlling the flow of fuel injected into a turbomachine by means of a fuel feed unit ( 10 ), comprising a tachometric balance ( 20 ) having a beam consisting of two...
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7386981 |
Method and apparatus generating multiple pressure signals in a fuel system
A fuel system includes a first fuel line carrying fuel at a first line pressure (P 22 ), a second fuel line carrying fuel at a second line pressure (PFNC) greater than the first line pressure (P 22...
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7353656 |
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...
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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...
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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...
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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,...
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7322178 |
Device for indicating a residual power margin of aircraft turbine engines
A device for indicating a residual power margin of aircraft turbine engines includes a measuring stage associated with at least one turbine engine of an aircraft to measure a number of first...
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7320213 |
System for identification of hot and cold chambers in a gas turbine combustor
A system for ranking combustion chambers in a gas turbine in order of chamber combustion temperature including: at least one fuel nozzle supplying fuel to the combustion chambers at a predetermined...
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7302334 |
Automatic mapping logic for a combustor in a gas turbine engine
A mapping device maps each burner mode at various bleed settings to generate control schedules for a combustion controller that ensure combustion dynamic (acoustic) pressures, and emissions limits...
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7299634 |
Combustion chamber
A combustion chamber ( 4 ) for a gas turbine ( 1 ), the combustion chamber wall ( 24 ) of which is furnished on the inside with a lining formed of a number of heat shield elements ( 26 ), is to be...
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7275361 |
Control system for gas turbine engines
In a control system for a gas turbine engine that uses the outlet pressure of the turbine as an importation control parameter, when the high pressure sensor for detecting the outlet pressure of the...
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7269939 |
Method and apparatus for automatically actuating fuel trim valves in a gas
A gas turbine combustion system having: a plurality of combustion chambers; a plurality of fuel nozzles for each of combustion chamber; a plurality of manifolds for supplying fuel to at least one...
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7252068 |
System and method to reduce fuel system pumping heat input
The present invention discloses a relatively simple system and method to reduce fuel system pumping by automatically turning on and off servo flow to various non-needed devices or “start...
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7251925 |
Pressure-based fuel metering unit
A fuel delivery system for use, for example in a gas turbine engine system, includes a fuel metering unit including a main fuel inlet. The fuel metering unit includes fuel pressure and temperature...
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7246024 |
Sensor malfunction detection system for gas-turbine engine
The sensor malfunction detection system for a gas-turbine engine is configured to determine or check once every first predetermined time period whether the outputted value from the sensor is within...
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