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| Number | Title | Issue Date |
| 8166762 | Fuel control arrangement Fuel control arrangements provide and control fuel flow to injectors through fuel control valves. The injectors are connected to respective fuel control valves which in turn are connected to a first fuel flow path. The injectors are also connected to a second fuel f... | 05/01/2012 |
| 8127548 | Hybrid electrical/mechanical turbine engine fuel supply system A turbine engine fuel supply system includes a priority flow line, a plurality of secondary fuel loads, an electric fuel metering pump, and a mechanically-driven fuel pump. The priority flow line is used to supply fuel to one or more gas turbine engine fuel manifold... | 03/06/2012 |
| 8096129 | Fuel distribution apparatus A fuel distribution apparatus has a manifold head, a waisted portion and a nozzle head. An inlet channel is formed in a mounting surface of a casing of a jet engine. An annular inlet manifold is formed in the manifold head to receive fluid from the fuel inlet channe... | 01/17/2012 |
| 7992390 | External rigid fuel manifold A fuel manifold of a gas turbine engine includes a tube assembly having substantially rigid inner tubes disposed inside of substantially rigid outer tubes in pairs, concentrically spaced apart by a spacer apparatus. The inner tubes form a primary fuel passage for di... | 08/09/2011 |
| 7950232 | Fuel feed circuit for an aircraft engine A head loss element is interposed between the outlet from the pump delivering high pressure fuel and the pipe feeding combustion chamber injectors. A servo-valve for feeding a hydraulic actuator of a variable-geometry component of the engine has an HP admission inle... | 05/31/2011 |
| 7827796 | Rotary metering valve arrangement A rotary metering valve arrangement comprises a rotary metering valve arranged to control the supply of fuel to a Pressure Raising and Shut-Off Valve (PRSOV), the metering valve comprising a valve plate provided with first and second latching ports and an angularly ... | 11/09/2010 |
| 7703286 | Internal fuel manifold and fuel fairing interface A mounting system for an annular internal fuel manifold disposed within a gas turbine engine includes a fuel inlet assembly having a heat shield extending about at least a portion of an inner fuel inlet tube. The heat shield has a distal end engaged with the fuel ma... | 04/27/2010 |
| 7497083 | Fuel supply system A fuel supply system for a gas turbine engine comprises a first positive displacement pump (16), a second positive displacement pump (27), said first and second positive displacement pumps (16, 27) being operable simultaneously for the supply of... | 03/03/2009 |
| 7442457 | Fuel cell system with compressor and also a method for operating such a fuel cell system A fuel cell system comprising a plurality of fuel cells combined together to form a fuel cell stack, with the fuel cell stack having an anode side with an inlet for a fuel and an outlet for non-consumed fuel and exhaust gases arising at the anode side as well as a c... | 10/28/2008 |
| 7401461 | Reduced-weight fuel system for gas turbine engine, gas turbine engine having a reduced-weight fuel system, and method of providing fuel to a gas turbine engine using a reduced-weight fuel system A fuel system (10) for a gas turbine engine (18) having a shaft (30) and requiring fuel to be supplied at a first rate for engine start up, the fuel system (10) including: a main fuel pump (14) for providing fuel to the gas turbine... | 07/22/2008 |
| 7377114 | Turbine engine pulsed fuel injection utilizing stagger injector operation A method to control the output of a turbine engine pulses individual fuel injectors completely on and then completely off in selectable groups rather than in unison. The operation of the groups are staggered in time to minimize the periods of no fuel flow to the eng... | 05/27/2008 |
| 7347050 | Fuel metering unit A fuel metering unit 10 for an aircraft. The unit 10 having an inlet leg 12 within which fuel flows, which leg 12 splits into controlling legs 18, 20 which rejoin downstream to form an outlet leg 30. Shut off valves 28, 3... | 03/25/2008 |
| 7337761 | Fuel system A fuel system comprises a spill valve 38 operable to relieve the fuel pressure differential across at least one positive displacement pump 16, 18, a shut-off valve 32 operable to control the supply of fuel to an engine 84, and a two stage... | 03/04/2008 |
| 7334407 | Method of suppressing coke in endothermic fuel processing A fuel system for a propulsion system includes a fuel deoxygenating device and a catalytic module containing catalytic materials. The fuel deoxygenating device removes dissolved oxygen from the fuel to prevent formation of insoluble materials that can potentially fo... | 02/26/2008 |
| 7260926 | Thermal management system for an aircraft A fuel based thermal management system includes a fuel stabilization system which permits the fuel to exceed the traditional coking temperatures. High temperature components are arranged along the fuel flow path such that even at the higher operating temperatures th... | 08/28/2007 |
| 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 sensors. A cavitating venturi is in fluid communication with the main... | 08/07/2007 |
| 7234293 | Fuel supply system A fuel supply system for a gas turbine engine including first and second positive displacement pumps operated simultaneously to supply fuel under pressure from a low pressure source, a combining spill valve controlling the output flows from the first and second pump... | 06/26/2007 |
| 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 desired fuel flow. A centrifugal pump is driven by the turbine engine. ... | 05/15/2007 |
| 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 written to said memory device by an associated electronic engine con... | 04/17/2007 |
| 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 the inlet and outlet of the combustor (36) are d... | 01/16/2007 |
| 7155896 | Combustor drain valve A system for draining fuel from the combustion chamber of a gas turbine engine in the event of a false start includes associated passageways and a straight through flow pilot air actuated poppet valve. The valve is normally open and actuated by the pilot air to clos... | 01/02/2007 |
| 7146967 | Fuel supply apparatus for engine and method thereof When a pressure of fuel supplied to an engine is higher than a target, the fuel is carried in a reverse direction by rotating a fuel pump in reverse, and in accordance therewith, the fuel pressure is made to fall with good responsiveness. ... | 12/12/2006 |
| 7117675 | Cooling of liquid fuel components to eliminate coking A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of c... | 10/10/2006 |
| 7114336 | Flow pulsing valve and fuel supply system for a turbine engine incorporating same A pulsing valve assembly pulses metered fuel flow to a turbine engine. The pulsing valve assembly comprises a valve housing having an inlet and an outlet. A divider valve divides metered fuel flow into a first flow portion and a second flow portion. A first actuator... | 10/03/2006 |
| 7093437 | Extended operability aircraft fuel delivery system A fuel delivery system for a gas turbine engine includes a main fuel pump supplying fuel to a fuel-metering device. The operational flow range of the fuel system is dependent on a minimum net positive suction pressure at the main pump inlet required to prevent pump ... | 08/22/2006 |
| 7028484 | Nested channel ducts for nozzle construction and the like A multiple conduit system for a gas turbine engine, the multiple conduit system extending between a plurality of conduit inlet and outlets. A channel is formed in a surface of a gas turbine engine component, and the channel is adapted for conveying a fluid flow from... | 04/18/2006 |
| 7007476 | Gas turbine fuel system staging valves In a fuel injector circuit for a gas turbine engine, a fuel staging valve assembly for distributing fuel into multiple zones in the combustor, the staging valve assembly, including a pilot valve operatively interconnected with at least one main valve, having high pr... | 03/07/2006 |
| 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 checkvalve, which may be integrated with the ejector pump, is also used. A ... | 03/07/2006 |
| 7003960 | Method and appliance for supplying fuel to a premixing burner A method and an appliance are described for supplying fuel to a premixing burner for operating a gas turbine, which premixing burner has at least one burner shell (1, 2) at least partially bounding an axially extending premixing burner space, having a premixi... | 02/28/2006 |
| 7003939 | Method for the adaption of the operation of a staged combustion chamber for gas turbines This invention relates to a fuel injection system for a staged combustion chamber (1) of a gas turbine aero-engine, in which a certain quantity of fuel is permanently supplied to the pilot burner(s) (3) and in which fuel is apportioned to the main burn... | 02/28/2006 |
| 6997437 | Valve for dynamic control of fuel flow rate in gas turbine power plant, power plant and components thereof employing such valve, and method of constructing such valve There is disclosed a valve comprising a valve stem threaded with a translator having a flow modulating region, in which rotation of the valve stem about its axis causes the translator to move axially relative to the valve stem. In one aspect, the threads on the tran... | 02/14/2006 |
| 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 system includes a shutdown solenoid capable of closing a pressurizin... | 02/14/2006 |
| 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 fuel pressure to levels required by the turbine engin... | 02/14/2006 |
| 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 turbomachine, the unit comprises a meter which receives the fuel for injectio... | 01/24/2006 |
| 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 adapted to accurately control pressure drop across the fuel metering valve.... | 01/03/2006 |
| 6978767 | Active drag and thrust modulation system and methods A vehicle traveling through an environmental media such as air experiences drag. The drag is actively modulated by energy beams which may either increase or decrease the drag. The energy beams may provide either a chemical, acoustic or electromagnetic energy at a tr... | 12/27/2005 |
| 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 activated injector valves to meter fuel into an output plenum where the ... | 11/01/2005 |
| 6957537 | Combustor of a gas turbine having a nozzle pipe stand Manifolds are shaped cross star having curved surfaces inside thereof, and holes are bored in four corners of the manifolds. In mounting a combustor to a casing, oil in the manifolds is transmitted to the holes by way of the curved surfaces. As a result of this, oil... | 10/25/2005 |
| 6955705 | Method and system for compressing and dehydrating wet natural gas produced from low-pressure wells Method and system for compressing and dehydrating wet natural gas produced from a low-pressure well using a rotary screw compressor. A dehydrating agent is combined with wet natural gas within a rotary screw compressor. Operation of the rotary screw compressor cause... | 10/18/2005 |
| 6945053 | Lean premix burner for a gas turbine and operating method for a lean premix burner A lean premix burner for a gas turbine having at least one fuel supply ring 4 fitted with primary fuel nozzles 8 and additional secondary fuel nozzles 9, and a method of operation for this lean premix burner. ... | 09/20/2005 |
