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1. 发明授权

EP4063633B1 FUEL SUPPLY SYSTEM WITH COMBINED METERING AND SHUTOFF VALVE 有权
公开(公告)号：EP4063633B1
公开(公告)日：2024-08-28
申请号：EP22163308.4
申请日：2022-03-21
IPC分类号： F02C7/232 , F02C9/26
CPC分类号： F02C7/232 , F05D2270/6220130101 , F02C9/263 , F05D2270/301520130101 , F05D2240/5520130101

2. 发明授权

EP3976950B1 SYSTEME D'ALIMENTATION EN CARBURANT D'UNE TURBOMACHINE AVEC REGULATION DU DEBIT DE CARBURANT 有权
公开(公告)号：EP3976950B1
公开(公告)日：2024-05-08
申请号：EP20737255.8
申请日：2020-05-20
IPC分类号： F02C9/26 , F02C9/30 , F02C9/46
CPC分类号： F02C9/46 , F02C9/30 , F02C9/263 , F05D2270/02120130101 , F05D2270/04220130101 , F05D2270/30420130101

3. 发明授权

EP3217000B1 COMBUSTION STAGING SYSTEM 失效
公开(公告)号：EP3217000B1
公开(公告)日：2018-09-26
申请号：EP17154954.6
申请日：2017-02-07
申请人： Rolls-Royce PLC
发明人： HILL, Ralph, W.
IPC分类号： F23R3/34 , F02C9/46 , F02C9/26 , F02C7/14 , F01D21/00 , F02C7/232 , F02C7/228 , F02C7/22
CPC分类号： F02C9/46 , F01D21/003 , F02C7/14 , F02C7/222 , F02C7/228 , F02C7/232 , F02C9/263 , F05D2220/32 , F05D2240/35 , F05D2260/80 , F23R3/343 , F23R3/346
摘要： A combustion staging system for fuel burners of a multi-stage combustor of a gas turbine engine is provided. The system has pilot and mains fuel manifolds respectively distributing fuel to pilot and mains stages of the burners. The system further has a plurality of check valves through which the mains manifold feeds fuel to the respective burners. The check valves are arranged to open when the fuel pressure within the mains manifold exceeds a predetermined fuel pressure relative to gas pressure in the combustor. The system further has a splitting unit which receives a metered fuel flow and controllably splits the received fuel flow into pilot and mains flows which are sent respectively to the pilot and mains fuel manifolds to perform staging control of the combustor. The splitting unit is operable to select the pilot manifold and to deselect the mains manifold for pilot-only operation in which there is a pilot supply to the combustor but no mains supply to the combustor from the burners. It is also operable to select both the pilot and mains manifolds for pilot and mains operation in which there are pilot and mains supplies to the combustor from the burners. The system further has a cooling flow recirculation line having a delivery section arranged to provide a cooling flow of fuel to the mains manifold when that manifold is deselected so that the deselected mains manifold remains primed with relatively cool fuel, and a return section arranged to collect the cooling flow from the mains manifold. The system further has a gas pressure sensor configured to measure gas pressure in the combustor, a speed sensor which measures a rotation speed of a rotor of the engine, and a control unit which, when the mains manifold is deselected for pilot-only operation, (i) compares the measured rotation speed with a predicted rotation speed for the metered fuel flow, and compares the measured gas pressure with a predicted gas pressure for the metered fuel flow, and (ii) is adapted to close off the recirculation line when the results of these comparisons are indicative of leakage of fuel from the cooling fuel flow into the combustor through one or more of the check valves.

4. 发明授权

EP2025901B1 Fuel metering system with minimal heat input 有权转让
公开(公告)号：EP2025901B1
公开(公告)日：2018-09-26
申请号：EP08161291.3
申请日：2008-07-28
申请人： Honeywell International Inc.
发明人： Emo, Stephen M. , Rowan, William S. , Portolese, Larry A.
IPC分类号： F02C9/26 , F02C7/232
CPC分类号： F02C9/263 , F02C7/232 , Y02T50/671
摘要： A fuel metering system for supplying fuel to a plurality of loads includes a variable displacement piston pump having an adjustable hanger that is movable to a plurality of positions. The variable displacement piston pump is configured to receive a drive torque and, upon receipt of the drive torque, to supply fuel to the plurality of loads at a flow rate dependent on the position of the adjustable hanger. A hanger actuator is coupled to receive hanger position commands and is operable, in response thereto, to move the adjustable hanger to the commanded position. A pump control mechanism is coupled to receive the fuel flow commands supplied by the gas turbine engine controller and is operable, in response thereto, to supply the hanger position commands.

5. 发明授权

EP2568218B1 Fuel gas pressure control system and method for reducing gas turbine fuel supply pressure requirements 有权
公开(公告)号：EP2568218B1
公开(公告)日：2018-08-08
申请号：EP12183151.5
申请日：2012-09-05
申请人： GENERAL ELECTRIC COMPANY
发明人： Rentala, Pradeep
IPC分类号： F23K5/00 , F23N1/00 , F23R3/28 , F02C7/228 , F02C9/26 , F02C9/34 , F23N5/18
CPC分类号： F23N1/002 , F02C7/228 , F02C9/263 , F05D2270/301 , F23K5/005 , F23N2005/185 , F23R3/28
摘要： A method is provided for modifying a fuel control system for a gas turbine (10) having a standard unloading sequence and a pre-defmed minimum inlet pressure requirement associated with the standard unloading sequence to allow the gas turbine to operate over an increased range of fuel supply pressure. The method includes modifying the fuel control system by inputting a modified unloading sequence onto a computing system (28) operatively associated with the fuel control system (24,30), the modified unloading sequence comprising a series of operating modes, mode transfers, or a combination thereof that is different than the standard unloading sequence; and modifying the fuel control system by inputting a new defined minimum inlet pressure requirement for the modified unloading sequence onto the computing system, the new defined minimum inlet pressure requirement being less than the pre-defined minimum inlet pressure requirement thereby reducing a fuel supply pressure trip point for the gas turbine.

6. 发明授权

EP2511499B1 Fuel flow divider and ecology system for a gas turbine engine fuel flow control system 失效转让
公开(公告)号：EP2511499B1
公开(公告)日：2018-07-11
申请号：EP12162915.8
申请日：2012-04-02
申请人： Honeywell International Inc.
发明人： Futa, Paul , McRoberts, Brad , Lafferty, Greg
IPC分类号： F02C7/232 , F02C9/26 , F02C7/228 , F02C9/34
CPC分类号： F02C9/263 , F02C7/228 , F02C7/232 , F02C9/34 , Y10T137/2524
摘要： A flow divider valve for a gas turbine engine fuel supply system is provided. The flow divider valve is configured, whenever fuel pressure at its inlet port is between a first predetermined pressure and a second predetermined pressure, to supply the fuel to a start nozzle manifold outlet port at a substantially constant flow rate, and to direct any fuel flow in excess of the substantially constant flow rate to a run nozzle manifold outlet port.

7. 发明授权

EP2864615B1 PROCÉDÉ ET DISPOSITIF D'AJUSTEMENT D'UNE VALEUR SEUIL DE DÉBIT CARBURANT 有权转让
公开(公告)号：EP2864615B1
公开(公告)日：2018-06-06
申请号：EP13737335.3
申请日：2013-06-20
申请人： SNECMA
发明人： JAVELOT, Christophe , DJELASSI, Cédrik , GAULLY, Bruno, Robert , SYLLA, Ismail
IPC分类号： F02C9/26
CPC分类号： F02C9/26 , F02C9/263 , F05D2220/323 , F05D2270/044 , F05D2270/114 , F05D2270/306 , F05D2270/309

8. 发明公开

EP3325787A1 DOSEUR DE CARBURANT PROTÉGÉ DU GIVRAGE 有权
公开(公告)号：EP3325787A1
公开(公告)日：2018-05-30
申请号：EP16757279.1
申请日：2016-07-19
申请人： Safran Aircraft Engines
发明人： BROCARD, Jean-Marie , DELDALLE, Régis, Michel, Paul , BARREAU, Anne, Marie, Cécile , MOUTON, Pierre, Charles
IPC分类号： F02C7/224 , F02C7/232 , F02C7/236 , F02C9/26
CPC分类号： F02C7/224 , F02C7/232 , F02C7/236 , F02C9/263 , F05D2200/24 , F05D2250/292 , F05D2250/90 , F05D2260/607 , Y02T50/675
摘要： The invention relates to a fuel metering device (12-1) comprising a mobile element (22) comprising at least one fuel passage section (32) opening upstream toward a fuel supply duct and opening downstream toward a usage duct via a metering slot (34) of flared profile having a narrow passage section and a broad passage section, the mobile element being able to be moved with respect to a fixed element (24) between a low-flow-rate position in which the metering slot is to a large extent obstructed and a high-flow-rate position in which the metering slot is to a large extent uncovered, the metering slot being made in the fixed element or in the mobile element and its obstruction being achieved by the covering of the slot by a wall of the mobile element or of the fixed element. The metering device further comprises means (40) for at least partially obstructing the narrow passage section of the metering slot when the metering device is in the high-flow-rate position, without ever obstructing the broad passage section. The invention is also aimed at an aircraft engine fuel supply circuit comprising such a metering device.

9. 发明公开

EP3289188A1 PURGING LIQUID FUEL NOZZLES AND SUPPLY TUBING WITH THE ASSISTANCE OF A FLOW DIVIDER 审中-公开
标题翻译：在流动分流器的帮助下清洗液体燃料喷嘴和供应管
公开(公告)号：EP3289188A1
公开(公告)日：2018-03-07
申请号：EP15721952.8
申请日：2015-04-28
申请人： Siemens Aktiengesellschaft
发明人： HEALEY, James R. , MESMER, Jason A.
IPC分类号： F01D25/00 , F02C3/30 , F02C7/22 , F02C9/40 , F02C7/232 , F02C9/26
CPC分类号： F01D25/002 , F02C3/305 , F02C7/232 , F02C9/26 , F02C9/263 , F05D2230/72 , F05D2240/35 , F05D2260/602 , F05D2270/07 , F05D2270/16 , F23K5/04
摘要： A fuel delivery system for a gas turbine engine that employs a technique for purging fuel delivery tubes in an effective manner. The fuel delivery system includes at least one multifunction valve that has a flow through position and a bi-directional purge position. The fuel delivery system also includes at least one flow divider that is positioned downstream from the multifunction valve and divides the flow of fuel from the valve into a number of the fuel delivery tubes, where a separate fuel delivery tube is provided for each combustor in the engine. The flow divider includes a pump element for all of the fuel delivery tubes that can operate in a forward and a reverse direction. Purge water provided downstream from the flow divider for each of the fuel delivery tubes can be pumped by the flow divider when the multifunction valve is in the purge position.

10. 发明公开

EP3286420A1 GAS FLOW FUEL METERING 有权
公开(公告)号：EP3286420A1
公开(公告)日：2018-02-28
申请号：EP16722459
申请日：2016-04-20
申请人： WOODWARD INC
发明人： WILSON KEVIN EMERY , FARROW TIMOTHY JOHN
IPC分类号： F02C7/232 , F02C9/26
CPC分类号： G05D7/0635 , B23P15/001 , F02C7/232 , F02C9/263
摘要： A fuel metering valve includes a valve body housing a valve element in an interior chamber between an inlet port and an outlet port, an actuator coupled to move the valve element relative to the valve body, and a controller configured to regulate the position of the valve body. The valve element regulates a flow of fuel through the valve body. The controller regulates the position of the valve body via an actuator based on measurements by differential and absolute pressure sensors to achieve a target mass flow rate of the fuel through the valve body. The differential pressure sensor is calibrated for accuracy only across a limited scale range based on a predetermined maximum subsonic pressure.

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