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公开(公告)号：US12092333B2
公开(公告)日：2024-09-17
申请号：US18120183
申请日：2023-03-10
CPC分类号： F23R3/343 , F02C7/264 , F05D2240/35 , F05D2260/99
摘要： An embodiment of a combustor for a gas turbine engine includes a combustor case, a combustor liner disposed within the combustor case, a fuel nozzle, and a torch igniter within the combustor case. The torch igniter includes a combustion chamber, a cap defining the upstream end of the combustion chamber and configured to receive a fuel injector and a surface igniter, a tip defining the downstream end of the combustion chamber, an annular igniter wall extending from the cap to the tip and defining a radial extent of the combustion chamber, a structural wall coaxial with and surrounding the igniter wall, and an outlet passage within the tip that fluidly connects the combustion chamber to the combustor. The torch igniter is situated such that the tip is mounted through the combustor liner, the combustion chamber is within the combustor case, and the cap extends through the combustor case.
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公开(公告)号：US12055297B2
公开(公告)日：2024-08-06
申请号：US17358377
申请日：2021-06-25
发明人： Gregory Allen Boardman , Michael Anthony Benjamin , Clayton Stuart Cooper , Joseph Zelina , Eric John Stevens
CPC分类号： F23R3/34 , F23R3/18 , F23R3/52 , F23R3/58 , F23C9/006 , F23R3/12 , F23R3/346 , F23R2900/00015
摘要： Various embodiments include a trapped vortex combustor and a method for operating trapped vortex combustor. In one embodiment, the trapped vortex combustor comprises a trapped vortex combustion zone and at least one secondary combustion zone disposed downstream of the trapped vortex combustion zone. The trapped vortex combustion zone is operable to receive and combust a first fuel and a first air and produce a first combustion product flowing toroidally therein. The at least one secondary combustion zone is operable to receive and combust the first combustion product and at least one second injection consisting of fuel and/or air and produce at least one second combustion product therein. The combustor may reduce the residence time of the highest temperature combustion products and achieve the lower NOx emission.
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公开(公告)号：US20240240590A1
公开(公告)日：2024-07-18
申请号：US18097315
申请日：2023-01-16
CPC分类号： F02C7/224 , F02C7/141 , F02C7/16 , F23R3/346 , F05D2220/323 , F05D2240/35 , F05D2260/213 , F05D2260/232
摘要： A disclosed turbine engine assembly includes a core engine assembly generating an exhaust gas flow and a thermal compressor where the exhaust gas flow from the core engine is received and compressed. The thermal compressor includes a converging duct that recompresses the exhaust gas flow that is mixed with fuel in a secondary combustor and ignited to generate a reheated gas flow.
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4.发明授权公开(公告)号：US12037947B2
公开(公告)日：2024-07-16
申请号：US18248666
申请日：2021-10-05
CPC分类号： F02C7/222 , F02C7/232 , F02C7/236 , F23R3/283 , F05D2220/323 , F05D2240/35 , F23R3/34
摘要： A device for distributing at least one fuel flow for a circuit for supplying fuel to a combustion chamber of a turbo machine, in particular of an aircraft, the device including a rotating main body extending about a longitudinal axis, the main body including an internal flow duct for a first flow of fuel, extending through the main body along the axis, a first annular portion configured to form an outlet passage for a second flow of fuel, and including at least one orifice for the second flow of fuel to pass through, and an external annular groove in fluidic communication with the at least one orifice in the first portion.
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公开(公告)号：US20240210039A1
公开(公告)日：2024-06-27
申请号：US18337477
申请日：2023-06-20
申请人： ROLLS-ROYCE PLC
发明人： Christopher P MADDEN , David M BEAVEN , Craig W BEMMENT , Paul W FERRA , Barani P GUNASEKARAN , Benjamin J KEELER , Peter SWANN , Martin K YATES
CPC分类号： F23R3/346 , F02C7/22 , F23K5/08 , F05D2240/35 , F23K2300/204
摘要： There is provided a method of operating a gas turbine engine. The gas turbine engine comprises a staged combustor having an arrangement of fuel spray nozzles in which fuel flow is biased to a subset of the nozzles adjacent one or more ignitors during a re-light procedure. The method comprises transferring heat from the oil to the fuel before the fuel enters the combustor so as to lower the fuel viscosity to 0.58 mm2/s or lower on entry to the combustor at cruise conditions. Also disclosed is a gas turbine engine.
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公开(公告)号：US20240210038A1
公开(公告)日：2024-06-27
申请号：US18211793
申请日：2023-06-20
申请人： ROLLS-ROYCE PLC
发明人： Christopher P MADDEN , Craig W BEMMENT , Paul W FERRA , Benjamin J KEELER , Andrea MINELLI , Peter SWANN , Martin K YATES
CPC分类号： F23R3/346 , F02C7/224 , F23K5/08 , F23K2300/204
摘要： A method of operating a gas turbine engine having a lean burn staged combustion system having a combustor in which fuel is combusted. The gas turbine engine includes a fuel-oil heat exchanger arranged to transfer heat between oil and fuel that is provided to the combustor. The method includes transferring heat from the oil to the fuel before the fuel enters the combustor so as to lower the fuel viscosity to 0.58 mm2/s or lower on entry to the combustor at cruise conditions.
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公开(公告)号：US20240151397A1
公开(公告)日：2024-05-09
申请号：US18417585
申请日：2024-01-19
CPC分类号： F23R3/346 , F02C3/30 , F05D2240/36
摘要： The present teachings generally include improvements to gas turbines for increasing performance and/or efficiency thereof. In an aspect, a gas turbine system featuring a free turbine includes an injector structurally configured to supply liquid water between a last stage turbine rotor of the gas turbine and a last stage turbine rotor of the free turbine. In this manner, heat transferred from combustion gases to the liquid water may cause vaporization of the water. In turn, one or more of (i) a pressure increase from the vaporization of the water and (ii) an increase in mass flow rate across a free turbine rotor from the addition of the water into the system may increase power output of the free turbine. Thus, in some aspects, power output can be increased without the need for an increase in fuel consumption.
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公开(公告)号：US11959441B2
公开(公告)日：2024-04-16
申请号：US18049028
申请日：2022-10-24
发明人： Sibtosh Pal , Steven Clayton Vise , Arthur Wesley Johnson , Clayton Stuart Cooper , Joseph Zelina
摘要： A Brayton cycle engine including a longitudinal wall extended along a lengthwise direction. The longitudinal wall defines a gas flowpath of the engine. An inner wall assembly is extended from the longitudinal wall into the gas flowpath. The inner wall assembly defines a detonation combustion region in the gas flowpath upstream of the inner wall assembly.
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公开(公告)号：US20240102656A1
公开(公告)日：2024-03-28
申请号：US18529360
申请日：2023-12-05
摘要： A gas turbine engine including a compressor section, a combustor for combusting a fuel, and a turbine. Compressed air flows through a combustion liner of the combustor in a bulk airflow direction. The combustor includes a primary fuel nozzle and a secondary fuel nozzle. The secondary fuel nozzle is downstream of the primary fuel nozzle in the bulk airflow direction. The primary fuel nozzle is configured to inject a primary portion of the fuel into a primary combustion zone, and the secondary fuel nozzle is configured to inject a secondary portion of the fuel into a secondary combustion zone. The secondary combustion zone is located downstream of the primary combustion zone in the bulk airflow direction. The fuel may be one of diatomic hydrogen fuel and a hydrogen enriched fuel.
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10.发明公开公开(公告)号：US20240068408A1
公开(公告)日：2024-02-29
申请号：US18224781
申请日：2023-07-21
发明人： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, Jr. , Jay W. Kokas , Richard E. Versailles
CPC分类号： F02C7/232 , F23R3/346 , F05D2240/35 , F05D2260/60 , F23N2241/20
摘要： A system includes an injector having a scheduling valve assembly and a nozzle in fluid communication with the valve assembly. The scheduling valve assembly is configured for regulation of flow from an inlet of the injector to the nozzle. The injector includes two fluid circuits between the inlet of the injector and two respective outlets of the nozzle for staged flow output from the nozzle. A first one of the two fluid circuits is a primary circuit, and a second one of the two fluid circuits is a secondary circuit. A solenoid valve is connected in fluid communication with the scheduling valve assembly, wherein the solenoid valve is configured to adjust position of a hydromechanical valve spool of the valve assembly.
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