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6976351 |
Methods and apparatus for monitoring gas turbine combustion dynamics
A method for monitoring and diagnosing the combustion dynamics of a gas turbine engine system includes mounting at least one sensor on an external surface of at least one combustor can, receiving a...
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6973791 |
Method and apparatus for reduction of combustor dynamic pressure during operation of gas turbine engines
Methods and apparatus for operating a gas turbine engine without sustained detrimental levels of dynamic pressure are provided. The engine includes a combustor. The method includes determining the...
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6959536 |
Fuel pump metering system
The present invention provides a widely variable and yet precisely controlled system for metering the flow of fuel to an engine component. The present invention utilizes a plurality of solenoid...
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6955040 |
Controlled pressure fuel nozzle injector
A multi-staged gas turbine engine fuel supply fuel injector includes at least first and second staged fuel injection circuits having first and second fuel injection points. At least first and...
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6945030 |
Gas turbine control system
A gas turbine control system is disclosed which operates to stabilize the system frequency in a case of transitional variations of the system frequency without making the strength of hot gas path...
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6938404 |
Supercharged open cycle gas turbine engine
The present invention provides a supercharged open cycle gas turbine engine comprising a core engine for generating shaft power output, a supercharger for increasing the pressure of intake air of...
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6931835 |
Multivariant set point using N1 and N2 for engine control
A method for selecting a setpoint for a turbofan engine having a fan speed and a core idle speed scheduling includes determining a weighting factor based upon a throttle lever position, the...
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6931857 |
Rotor inlet temperature control for turbo machine
A method of synthesizing rotor inlet temperature in a turbine comprising the steps of determining a burner fuel flow (WFGG), a burner inlet pressure (PS32), and a compressor discharge temperature...
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6925809 |
Gas turbine engine fuel/air premixers with variable geometry exit and method for controlling exit velocities
Apparatus for premixing fuel and air to provide a fuel/air mixture includes a mixing tube configured for receiving fuel and air, a mixing tube axis, and a mixing tube exit for discharging a...
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6915639 |
Method and apparatus for gas turbine over-speed protection
A fuel system interface for a gas turbine engine prevents a rotor from over-speeding and receives either an electrically-originated or a mechanically-originated over-speed signal. In the exemplary...
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6912837 |
Fail fixed fuel metering device and method for providing bumpless transfer to backup
A fuel metering device ( 101 ) and method for metering fuel to an engine ( 129 ) provides bumpless transfer to a backup mode. A common cavity ( 125 ) provides pressure relief, fuel metering and...
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6912856 |
Method and system for controlling gas turbine by adjusting target exhaust temperature
A method for determining a target exhaust temperature for a gas turbine including: determining a target exhaust temperature based on a compressor pressure condition; determining a temperature...
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6907722 |
Gas compressor control device and gas turbine plant control mechanism
A gas compressor control device and a gas turbine plant control mechanism are disclosed. A fuel gas pressurized by a gas compressor is supplied to a gas turbine via fuel gas piping. A gas turbine...
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6898939 |
Methods for rotor overspeed and overboost protection
A rotor overspeed protection system for a gas turbine engine controls engine fuel flow to prevent an engine rotor from over-speeding. The engine fuel metering system includes a fuel metering valve...
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6895758 |
Fluidic control of fuel flow
A fluidic apparatus for modulating the rate of fuel flow into the combustor of a gas turbine engine. The apparatus includes a fluidic oscillator device (preferably an astable fluidic oscillator, or...
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6883301 |
Apparatus for reducing gas turbine engines emissions
A combustion control system controls a turbine engine that includes a fuel manifold and a plurality of fuel injectors. The control system includes a fuel pulsator and a controller. The fuel...
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6880324 |
1-axis type combined cycle plant
A combined cycle plant includes a gas turbine fuel control valve which controls supply of first fuel; a duct burner fuel control valve which controls supply of second fuel; a generator; a gas...
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6877307 |
Automatic combustion control for a gas turbine
A method of controlling a gas turbine engine to provide protection against damaging pressure transients in the combustion process and to ensure compliance with emission requirements. Pressure...
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6854257 |
System for injecting fuel into a turbomachine
A system for injecting fuel into a turbomachine comprising N fuel injectors placed in a combustion chamber of the turbomachine and fed from a fuel tank, the injection system further comprising,...
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6854274 |
System and method for efficient load following control logic for a turbogenerator operating in stand-alone mode
Systems and methods are provided for controlling the rotational speed of a turbogenerator in stand-alone mode to account for a present operating load and a transient reserve capability. A base...
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6848250 |
Fuel injection system for a combustion engine
According to the present invention there is provided a fuel injection system for a combustion engine, comprising:
a fuel metering unit for providing a metered supply of pressurized fuel, at...
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6839613 |
Remote tuning for gas turbines
A system and method for tuning a turbine comprises a turbine controller coupled to the turbine, a first computer system coupled to the turbine controller and located locally to the turbine, and a...
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6837055 |
Gas turbine engine control system
An apparatus and method for controlling a gas turbine engine involves calculating a simple corrected speed value for the engine using values of compressor speed and inlet stagnation temperature of...
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6813876 |
Fuel system
A fuel system for a gas turbine engine having a main burner fuel supply line and a pilot burner fuel supply line, a high pressure pump supplying fuel to the main and pilot burner supply lines in...
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6813875 |
Control system for gas-turbine engine
A system for controlling a gas-turbine engine having a combustor which generates a combustion such that resulting combustion gas rotates a turbine that is connected to the compressor and a load...
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6810674 |
Fuel delivery system
A fuel delivery system provides for closed loop mass flow control of fuel between a metering valve and a pump, such as a variable delivery pump. Changes in pressure across the metering valve are...
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6807801 |
Rapid shutdown and ecology system
A dual function rapid shutdown and ecology system for fuel delivery systems for engines, specially aircraft gas turbine engines, is disclosed. The dual function is accomplished in a single module...
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6789390 |
Methods and apparatus for estimating gas turbine engine governor dynamics
An apparatus estimates governor dynamics for a gas turbine engine used in a system. The apparatus is programmed to obtain a first set of parameters from a governing sub-system coupled to the...
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6786049 |
Fuel supply control for a gas turbine including multiple solenoid valves
A fuel supply control system for a gas turbine includes a plurality of solenoid valves. The solenoid valves are energized in a timing sequence with a phase relationship designed to achieve a...
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6786033 |
Methods and apparatus for operating gas turbine engines
A fuel control system for a gas turbine engine includes logic that is used to facilitate enhanced compressor stall margin when the engine is operating in potential icing conditions is described....
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6782692 |
Fuel metering unit with two integrated outlet ports
In a turbomachine, there is provided a fuel metering unit having a cylindrical outer sleeve containing a distributor cylinder in which a metering piston can be moved linearly under the action of a...
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6775986 |
Gas turbine and method for suppressing azimuthal fluctuation modes in a gas turbine
In a gas turbine having a combustion chamber ( 6 ) and a first row of guide vanes ( 3 ) arranged on the outflow side of the combustion chamber ( 6 ), a plurality of temperature sensors ( 8 ) for...
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6766637 |
Battle override valve
A fuel control system, battle override valve and a method of controlling bypass fuel in a fuel system are disclosed. A battle override valve 30 for an engine fuel system 10 includes a metering...
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6763664 |
Fuel ratio control method and device in a gas turbine combustor
A fuel ratio control method and a device therefor in a gas turbine combustor are provided in which supply ratio of pilot fuel to main fuel is appropriately maintained to thereby avoid unstable...
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6751942 |
System for controlling fuel flow to gas turbine engine
A system for controlling the flow of fuel to a gas turbine engine is operable in at least two modes. In a first mode, the flow rate of fuel supplied from a fuel source to the combustors of the...
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6751941 |
Foil bearing rotary flow compressor with control valve
A fuel delivery system supplies fuel to a turbogenerator or to another heat engine. A fuel delivery system according to the present disclosure may include a fuel compressor, a fuel control valve,...
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6748744 |
Method and apparatus for the engine control of output shaft speed
In accordance with one aspect of the present invention, in a control system for controlling a gas turbine engine, there is provided a system and a method for determining an optimized output shaft...
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6745556 |
Fuel system
The present invention relates to a fuel control system for use in conjunction with a gas turbine engine.
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6745557 |
Hydraulic valve arrangement
An hydraulic valve arrangement including a fluid pressure actuable valve which is actuable between a first position in which fluid flow through the fluid pressure actuable valve is prevented and a...
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6745558 |
Gas-turbine engine control system
In a gas-turbine engine control system, a temperature of the air supplied to mixers and a pressure of the fuel supplied to the mixers are detected and based on the detected fuel pressure, a flow...
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6742340 |
Fuel injection control system for a turbine engine
This invention is a fuel injection control system for a turbine engine. The invention uses at least one fuel injector, having means for injecting fuel in pulses to the combustion chamber of a...
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6729138 |
Device and method for adjusting the power of a power pack driving a helicopter rotor
A device for adjusting the power of a power pack driving a helicopter rotor, including a device for dosing the fuel feed rate. An electronic control device is further provided that acquires an...
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6722135 |
Performance enhanced control of DLN gas turbines
A control system and methodology for a gas turbine having multiple fuel valves for multiple combustion chambers involves tuning the fuel valves to associated combustion chambers to optimize nitrous...
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6725167 |
Flow measurement module and method
A flow measurement module is adapted to operate in conjunction with a control valve assembly to measure a flow rate of a fluid though a flow passage regulated by the control valve assembly. The...
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6718749 |
Combined cycle power generation plant operating more stably on load change
A combined cycle power generation plant includes a gas turbine operating in response to a turbine control signal and a speed control apparatus which outputs the turbine control signal to the gas...
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6715277 |
Fuel control system for gas turbine engines
Fuel control systems for use with a gas turbine engines which accounts for real-time thermodynamic engine effects when attempting to match or track the NDOT Actual rate to the NDOT Demand rate....
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6708496 |
Humidity compensation for combustion control in a gas turbine engine
A gas turbine engine ( 12 ) wherein combustion conditions are controlled as a function of the humidity of the ambient air ( 36 ) in order to ensure stable, emission-compliant performance over a...
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6698181 |
System for regulating the output of an engine of a helicopter
The regulating system ( 1 ) comprises in particular a metering valve ( 4 ) for metering the fuel fed to the engine ( 2 ), as a function of control commands, a device ( 8 ) for determining a pre-set...
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6694742 |
Gas turbine system operation based on estimated stress
Critical stress in a gas turbine can be estimated using one or more readily measurable temperatures in the gas turbine. First and second critical temperatures can be estimated based on the at least...
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6675570 |
Low-cost general aviation fuel control system
A fuel system for providing a desired fuel flow to an engine comprises a metering assembly for providing a variable portion of metered fuel flow to an associated nozzle system. The variable portion...
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