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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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7246002 |
Method for controlling fuel splits to gas turbine combustor
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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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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7237377 |
Method and apparatus for gas turbine dry low NOx combustor corrected parameter control
A method for controlling a combustor of an engine, the combustor having a fuel to oxidant ratio, the fuel to oxidant ratio being defined as a ratio of an amount of fuel supplied to the combustor...
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7216487 |
Metering demand fuel system for gas turbine engines
A fuel system includes a turbine engine, and an electric motor that are independently drivable relative to one another. The electric motor has a speed that is selectively controlled based upon a...
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7204076 |
Engine fuel control
An aircraft gas turbine engine fuel metering unit incorporating a memory device for storing data relevant to that unit, and an electrical connection arrangement whereby data can be read from and/or...
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7200985 |
Fuel delivery system having an ecology valve
A fuel control system for a gas turbine engine is disclosed that includes a flow path carrying fuel from a fuel source to a combustion chamber, an ecology valve 124 for removing a quantity of...
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7197879 |
Multiple electric fuel metering systems for gas turbine applications
The present invention provides a multiple manifold fuel metering system with a separate motor, pump, and shut-off/purge valve for each manifold. The present invention may be used for metering fuel...
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7198483 |
Burner unit and method for operation thereof
Arranged upstream of each swirl-stabilized premix burner ( 1 ) of a burner system there is respectively an adjustable distributing device ( 5 ) with control valves (V 1 , . . . , V 8 ) and/or...
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7197878 |
Pump control system
A pump control system ( 20 ) for a pump ( 21 ) in a gas turbine engine ( 10 ) is described. The pump control system ( 20 ) comprises demand means ( 22 ) for providing a demand signal ( 23 )...
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7194863 |
Turbine speed control system and method
One embodiment of the invention provides a turbine control system that adjusts the control thresholds of two-position valves, which provide propellant to the turbine, based on turbine load so as to...
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7194865 |
Turbine overspeed protection
A method and apparatus for turbine overspeed protection, useful for steam and gas turbines, is disclosed. The apparatus comprises a spring-loaded rod held by a plurality of energized solenoids in...
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7191588 |
Combustor controller
A turbine inlet temperature operating section ( 15 ) determines the turbine inlet temperature T 4 based on the flow rate Gf and temperature Tf of fuel being supplied to a combustor ( 3 ) and the...
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7185675 |
Reduced gain thrust control valve
A reduced gain thrust control valve for use in a rocket engine has a housing with a fluid inlet and a piston and cylinder unit for controlling a fluid output of the control valve. The fluid inlet...
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7162875 |
Method and system for controlling fuel supply in a combustion turbine engine
In order to regulate fuel flow to the combustor ( 36 ) of the combustion turbine engine ( 10 ) having a primary combustion zone ( 64 ) and at least one further combustion zone, the temperature of...
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7152409 |
Dynamic control system and method for multi-combustor catalytic gas turbine engine
According to one aspect, a method of controlling a multi-combustor catalytic combustion system is provided for determining a characteristic of a fuel-air mixture downstream of a preburner...
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7143584 |
Gas turbine apparatus
A gas turbine apparatus is provided which comprises a turbine, a combustor for burning a mixture of air and fuel and providing the turbine with a combustion gas to drive it, a generator connected...
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7140175 |
Throttle control device in particular for turbine aero engine test bench
The invention concerns a throttle control device for an aircraft turbine engine. It comprises a control assembly acting on the native command of the turbine engine (MT 1 –MT 3 ) as a function of...
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7137809 |
Method for the production of a burner unit
In the case of swirl-stabilized premix burners ( 1 ), an axial mass flow distribution of the fuel introduced which has especially favorable values with respect to characteristics such as NO x ...
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7137242 |
Fuel system
A fuel control system for a staged combustion engine comprising, a fuel metering unit including a fuel metering valve having a fuel metering orifice the opening of which is varied to meter the flow...
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7127898 |
Method and system for incorporating an emission sensor into a gas turbine controller
A method for determining an estimated operating parameter for a gas turbine including the steps of: determining an estimated operating parameter using an algorithm have an input from a sensor,...
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7111464 |
Acceleration control in multi spool gas turbine engine
A gas turbine engine system comprises a first compression stage; a second compression stage; a combustor; a controller; a first sensor for sensing the speed of the first compression stage and...
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7100357 |
System for controlling gas turbine by adjusting a target exhaust temperature
A system 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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7100355 |
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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7096658 |
Centrifugal pump fuel system and method for gas turbine engine
A fuel system for a gas turbine engine that utilizes a centrifugal pump is presented. The system includes a fuel metering valve that is adapted to set a metered flow of fuel, and a throttle valve...
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7093443 |
Gas turbine apparatus
A gas turbine apparatus has a combustor 2 for combusting fuel to produce a combustion gas, a turbine 1 which is rotated by the combustion gas, an electric generator 5 coupled to the turbine ...
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7089746 |
Systems and methods for detection of blowout precursors in combustors
The present invention comprises systems and methods for detecting flame blowout precursors in combustors. The blowout precursor detection system comprises a combustor, a pressure measuring device,...
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7082767 |
Process and device for supplying the turbojets of an aircraft during automatic flight
According to the invention, during level automatic flight of the aircraft (A) at steady altitude, the preset value EPRt, common to all the turbojets (M 1 to M 4 ) and corresponding to a particular...
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7080503 |
Control system
A fuel control system as claimed in claim 1 wherein, the pressure raising valve includes:
a pressure raising valve member exposed to fuel pressure within a reference chamber, an inlet to...
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7065973 |
Stall detection and recovery system
A stall detection and recovery system ( 10 ) for a gas turbine engine ( 1 ) comprises surge detection means ( 50 for detecting an engine surge and providing a surge detection signal ( 154 ) for...
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7051533 |
Method and system for controlling gas turbine engine
In a control method of a gas turbine engine, an engine controller 4 outputs a combustor power command FD based on an engine condition from an engine condition detector 3 . Then, a combustion...
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7047747 |
Method of and device for controlling fuel for gas turbine
Values such as a pressure for supplying fuel gas to a gas turbine, a pressure in a combustor casing of the gas turbine, an output of a generator connected to the gas turbine, and a controlled...
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7043896 |
Method and apparatus for controlling fuel flow to an engine
An engine shutdown device for controlling a fuel shut-off valve to thereby selectively interrupt fuel flow to an engine. The device comprises a normal switch connected to the fuel shut-off valve...
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7036302 |
Controlled pressure fuel nozzle system
A multi-staged gas turbine engine fuel supply system includes a plurality of fuel injectors and at least first and second staged fuel injection circuits in each of the fuel injectors. Each of the...
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7036318 |
Gas turbine electric powerplant
A gas turbine electric powerplant, preferably driven by an aeroderivative turbine engine of split shaft design. The gas turbine engine is coupled to a speed reducer, which is in turn coupled to an...
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7021062 |
Fuel control method and apparatus for combined plant
In a fuel control method for a combined plant, when the combined plant is just started or during a rated operation, a clutch is completely disengaged or engaged, and therefore, fuel is controlled...
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7007452 |
Fuel system for a gas turbine engine
A system for automatically transferring the fuel from one or more engine fuel manifolds directly to the engine fuel tank(s) during engine shutdown using an ejector pump has been presented. A...
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7010399 |
Methods and apparatus for fuel control using inertial measurement data
Methods and apparatus for fuel control systems using inertial measurement data are disclosed. In one embodiment, a method for controlling a fuel flow includes comparing an acceleration condition of...
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7007485 |
Controlling the fuel supply to a combustor of a gas turbine engine
The minimum fuel flow to a combustor of a gas turbine engine is controlled in response to the combustor inlet temperature T 3 in order to provide a FAR stability margin which responds to the...
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7000405 |
Gas turbine apparatus and a starting method thereof
A gas turbine starting method, comprising the steps of rotatively driving a turbine by a motor coupled to the turbine, while at the same time supplying a compressed air to a combustor by an air...
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7000376 |
Gas turbine control system
A control system for a gas turbine, wherein a number of regulators generate respective control signals selectable to regulate fuel supply to a combustion chamber of the gas turbine. The regulators...
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6996969 |
Multi-mode shutdown system for a fuel metering unit
A multi-mode shutdown system in combination with a fuel metering unit of an engine to prevent normal fuel delivery during engine malfunction such as the engine overspeeding. The multi-mode shutdown...
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6996970 |
High accuracy fuel metering system for turbine engines
A fuel control system ( 10 ) in a turbine engine includes a centrifugal boost pump ( 20 ) that receives fuel from a fuel tank and increases the pressure of the fuel. A piston pump ( 40 ) boosts the...
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6988356 |
Fuel metering unit with a compensated regulator valve in a turbomachine
A fuel metering unit in a turbomachine is connected between a high pressure pump which draws fuel from a fuel tank and a plurality of fuel injectors disposed in a combustion chamber of the...
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6986254 |
Method of operating a flamesheet combustor
A method of operating a gas turbine combustion system having reduced emissions and improved flame stability at multiple load conditions is disclosed. The improved combustion system accomplishes...
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6986641 |
Engine control system
A power turbine speed control system for a helicopter is disclosed which includes components for generating a power turbine speed signal based upon a demanded rotor speed, a high-order filter for...
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6986245 |
Fuel supply system and an associated operating method
A fuel supply system is provided that supplies a fuel to a burner arrangement with at least one burner, in particular a gas turbine. The fuel supply system has at its input a control valve that...
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6983603 |
Detection of gas turbine engine hot section condition
A system and a method for detecting gas turbine engine hot section condition using temperature measurements during engine operation. The system comprises a sensing unit for sensing a temperature...
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6981359 |
Centrifugal pump fuel system and method for gas turbine engine
A fuel system for a gas turbine engine that utilizes a centrifugal pump. The system includes a fuel metering valve that is adapted to set a metered flow of fuel, and a throttle valve that is...
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6978597 |
Flame detecting apparatus for gas turbine
A gas turbine apparatus is provided wherein a turbine is driven or rotated by burning a mixture of a fuel and compressed air and supplying a combustion gas generated by the combustion. A flameout...
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