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公开(公告)号：US12092036B2
公开(公告)日：2024-09-17
申请号：US18069669
申请日：2022-12-21
发明人： Peter Feher , Ilya A. Slobodyanskly
CPC分类号： F02C7/26 , F02C7/224 , F02C7/236 , F02C9/40 , F05D2240/36 , F05D2260/213 , F05D2260/85
摘要： The present application provides an alternative fuel fast start system for a gas turbine engine with a combustor and a compressor. The alternative fuel fast start system may include an alternative liquid fuel, a thermal energy storage tank, and a vaporizer. The alternative liquid fuel is stored in the thermal energy storage tank under pressure such that releasing the alternative liquid fuel from the thermal energy storage tank vaporizes the alternative fuel. Upon start-up of the gas turbine engine, the thermal energy storage tank supplies the vaporized alternative fuel to the combustor until the vaporizer is operational. The alternative liquid fuel may be propane, ethanol, or methanol.
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公开(公告)号：US20240243677A1
公开(公告)日：2024-07-18
申请号：US18154363
申请日：2023-01-13
CPC分类号： H02P9/02 , B64D27/10 , F02C6/00 , F02C7/268 , F05D2220/323 , F05D2220/76 , F05D2260/85
摘要： A variable frequency starter generator (VFSG) system includes a VFSG having a start mode and a generate mode, a permanent magnet generator (PMG) and a main generator section and an exciter section. The system also includes a controller electrically connected to the VFSG. The controller flow start mode three phase electrical power from aircraft power to the exciter of the VFSG in the start mode and flows single phase electrical power to the exciter of the VFSG in the generate mode. The controller includes: an input active rectifier that receives input AC power and converts it to DC power and provides it to across a positive rail and negative rail; an output inverter coupled to an output of the input active rectifier; and one or more line inductors connected along one or both of the positive rail and negative rail between the input active rectifier and the output inverter.
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3.发明公开公开(公告)号：US20240243632A1
公开(公告)日：2024-07-18
申请号：US18154565
申请日：2023-01-13
申请人： Rolls-Royce plc
发明人： Mark Angelo Tanner
CPC分类号： H02K3/20 , F02C6/00 , F02C7/266 , H02K7/116 , H02K7/1823 , H02K21/16 , F05D2220/323 , F05D2220/76 , F05D2260/85
摘要： An example electrical machine configured to generate electrical energy used by two or more components of a gas-turbine engine is described herein. The electrical machine comprises one or more first stator teeth having a first axial length that support first windings configured to generate a first level of the electrical energy used by a first component of the two or more components. The electrical machine also comprises one or more second stator teeth having a second axial length that support second windings configured to generate a second level of the electrical energy used by a second component of the two or more components, the first axial length different than the second axial length.
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公开(公告)号：US20240229674A9
公开(公告)日：2024-07-11
申请号：US18488217
申请日：2023-10-17
申请人： ROLLS-ROYCE plc
CPC分类号： F01D19/00 , F01D21/003 , F05D2260/80 , F05D2260/85
摘要： There is provided a method of starting a gas turbine engine, comprising: selecting a baseline starting procedure of the gas turbine engine based on environmental data; receiving condition information for the gas turbine engine and/or for a starting system of the gas turbine engine, the condition information comprising at least one of: health information for the gas turbine engine and/or the starting system; maintenance information for the gas turbine engine and/or the starting system; and operation information relating to an expected future usage of the gas turbine engine. The method further comprises determining a predicted degradation profile for the gas turbine engine and/or the starting system based on the condition information; determining a starting procedure of the gas turbine engine by adapting the baseline starting procedure based on the predicted degradation profile; and controlling the gas turbine engine and/or the starting system according to the determined starting procedure.
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公开(公告)号：US20240209790A1
公开(公告)日：2024-06-27
申请号：US18069669
申请日：2022-12-21
发明人： Peter FEHER , Ilya A. SLOBODYANSKLY
CPC分类号： F02C7/26 , F02C7/224 , F02C7/236 , F05D2240/36 , F05D2260/213 , F05D2260/85
摘要： The present application provides an alternative fuel fast start system for a gas turbine engine with a combustor and a compressor. The alternative fuel fast start system may include an alternative liquid fuel, a thermal energy storage tank, and a vaporizer. The alternative liquid fuel is stored in the thermal energy storage tank under pressure such that releasing the alternative liquid fuel from the thermal energy storage tank vaporizes the alternative fuel. Upon start-up of the gas turbine engine, the thermal energy storage tank supplies the vaporized alternative fuel to the combustor until the vaporizer is operational. The alternative liquid fuel may be propane, ethanol, or methanol.
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公开(公告)号：US20240190581A1
公开(公告)日：2024-06-13
申请号：US18523042
申请日：2023-11-29
发明人： Benjamin DAVID , Marcos Javier CHIABRANDO , María Cruz ZAMARRO MARTÍN , Francisco Manuel ANDREU FERNÁNDEZ , Carlos CASADO MONTERO
CPC分类号： B64D41/00 , B60L3/0092 , B60L50/00 , F02C7/26 , H02J3/0073 , B60L2200/10 , F05D2220/76 , F05D2260/85
摘要： An auxiliary power generator system for an aircraft including an auxiliary power unit (APU) with dual and fully redundant starter and electrical power generation systems that connects independently to a normal electric network or an emergency electric network of an aircraft. A method for supplying electric power to an aircraft by means of the system.
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公开(公告)号：US11988173B2
公开(公告)日：2024-05-21
申请号：US17075987
申请日：2020-10-21
申请人： Raytheon Company
摘要： A multi-pulse propulsion system includes at least one pulse chamber containing at least one propellant for igniting during at least one pulse of the multi-pulse propulsion system, at least one additional pulse chamber containing at least one additional propellant for igniting during at least one additional pulse of the multi-pulse propulsion system, and at least one passive fuzing system configured to initiate the at least one additional pulse. The at least one passive fuzing system includes a sensor and an igniter. The sensor is configured to sense an environmental condition and/or a ballistic condition. The igniter is configured to provide a stimulus that causes ignition of the at least one additional propellant in response to the sensor sensing that the environmental condition and/or the ballistic condition has reached or exceeded one or more threshold values.
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8.发明授权公开(公告)号：US11933309B2
公开(公告)日：2024-03-19
申请号：US17871504
申请日：2022-07-22
发明人： Yi-Fan Lin , Chung-Hung Tang , Cheng-Chieh Liu , Chun-Lung Chiu
IPC分类号： F04D19/00 , F04D25/06 , F04D27/00 , F04B49/02 , F04B49/06 , F04B49/20 , F04D17/16 , F04D29/66
CPC分类号： F04D19/002 , F04D25/06 , F04D27/004 , F04B49/02 , F04B49/06 , F04B49/065 , F04B49/20 , F04D17/16 , F04D29/661 , F05D2260/85
摘要： A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, the signal value of the first driving signal gradually decreases until being equal to the signal value of the second driving signal. Wherein the signal value of the first driving signal non-linearly decreases, the signal value of the second driving signal is an unchanged value. Wherein, the first time period and the second time period are adjusted for a different fan but the sum of the first time period and the second time period is always the same. A fan is also disclosed.
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公开(公告)号：US20240060452A1
公开(公告)日：2024-02-22
申请号：US18081185
申请日：2022-12-14
发明人： Vinod Kumar , Shankar Jayaraman
CPC分类号： F02C7/26 , F02C6/00 , F05D2260/85
摘要： A gas turbine engine includes a turbomachine comprising a low pressure (LP) spool and a high pressure (HP) spool that rotate about a central axis, an electric motor mechanically coupled to the LP spool for selectively rotating the LP spool, a starter assembly mechanically coupled to the HP spool for selectively rotating the HP spool, and a controller in operative communication with the electric motor and the starter assembly, the controller being configured to operate the electric motor to rotate the LP spool and operate the starter assembly to rotate the HP spool during engine startup.
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公开(公告)号：US11891956B2
公开(公告)日：2024-02-06
申请号：US17835525
申请日：2022-06-08
申请人： Delavan Inc.
发明人： Jason Ryon
CPC分类号： F02C7/264 , F05D2220/32 , F05D2240/35 , F05D2260/85
摘要： A torch ignitor system provides a continuous flame to ignite fuel within a combustor of a gas turbine engine. The torch ignitor system includes a manifold and a plurality of torch nozzles to enable the flame or torch to simultaneously ignite multiple fuel nozzles within the combustor of the gas turbine engine.
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