-
公开(公告)号：US11827368B2
公开(公告)日：2023-11-28
申请号：US16830428
申请日：2020-03-26
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Dubreuil , Richard Ullyott
IPC: F02C7/32 , B64D27/02 , B64D27/24 , B64D35/02 , H02K7/102 , H02K7/108 , B64D41/00 , B60W20/30 , B60W20/40 , B64D35/08 , F02C7/36 , B64D27/14 , B64D27/08
CPC classification number: B64D27/02 , B60W20/30 , B60W20/40 , B64D27/24 , B64D35/02 , B64D35/08 , B64D41/00 , F02C7/32 , F02C7/36 , H02K7/102 , H02K7/108 , B64D27/08 , B64D27/14 , B64D2027/026 , Y02T50/60
Abstract: An aircraft power plant has a hybrid propulsion system having an electric motor, an output shaft drivingly connectable to a thrust generator, a combustion engine, a compressor, and a planetary gear train having an Auxiliary Power Unit (APU) mode in which the electric motor is in driving engagement with the compressor via the planetary gear train while the combustion engine is disengaged from the output shaft, and a propulsion mode in which the combustion engine and the electric motor are in driving engagement with the output shaft via the planetary gear train.
-
公开(公告)号：US11485503B2
公开(公告)日：2022-11-01
申请号：US16830422
申请日：2020-03-26
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Dubreuil , Richard Ullyott
IPC: B64D27/02 , F02C7/32 , B64D27/24 , B64D35/02 , H02K7/102 , H02K7/108 , B64D41/00 , B60W20/30 , B60W20/40 , B64D35/08 , F02C7/36 , B64D27/14 , B64D27/08
Abstract: An aircraft power plant has a hybrid propulsion system having an electric motor, a combustion engine, an output shaft drivingly connectable to a thrust generator, a compressor, and a transmission having a first transmission drive path and a second transmission drive path, the combustion engine and the output shaft in driving engagement with the first transmission drive path, the electric motor selectively drivingly engageable to the compressor via either the first drive path or via the second drive path.
-
公开(公告)号：US11453508B2
公开(公告)日：2022-09-27
申请号：US17556753
申请日：2021-12-20
Applicant: Pratt & Whitney Canada Corp.
Inventor： Jean Dubreuil , Eric LaTulipe
IPC: B64D33/08 , B64D27/02 , B64D27/24 , F01M11/00 , F01M5/00 , F01M1/02 , F01M1/10 , F01M11/03 , F16H57/04 , F01D25/18 , F01D25/12 , H02K7/116 , H02K9/19 , H02K9/26 , H02K11/25 , B64D35/02
Abstract: A hybrid propulsion system includes a heat engine configured to drive a heat engine shaft. An electric motor configured to drive a motor shaft. A transmission system is connected to receive rotational input power from each of the heat engine shaft and the motor shaft and to convert the rotation input power to output power. A first lubrication/coolant system is connected for circulating a first lubricant/coolant fluid through the heat engine. A second lubricant/coolant system in fluid isolation from the first lubrication/coolant system is connected for circulating a second lubricant/coolant fluid through the electric motor.
-
公开(公告)号：US11041443B2
公开(公告)日：2021-06-22
申请号：US16583896
申请日：2019-09-26
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Eric Durocher , Keith Morgan , Lazar Mitrovic , Jean Dubreuil , Martin Poulin
Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis extending through an accessory gear box (AGB). The LP spool has an LP compressor, which is axially positioned between the HP compressor of the HP spool and the AGB. A tower shaft drivingly connects the HP spool to the AGB.
-
公开(公告)号：US10436060B2
公开(公告)日：2019-10-08
申请号：US15374115
申请日：2016-12-09
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Dubreuil , Johnny Vinski , Michel Desjardins
Abstract: There is described herein methods and systems for detecting a shaft event in a gas turbine engine comprising a power turbine having a first shaft extending in a first direction and a second shaft extending in a second direction opposite from the first direction. A first speed measurement is obtained at a first location along the first shaft and a second speed measurement is obtained at a second location along the second shaft. A speed ratio is determined between the first speed measurement and the second speed measurement, and is compared to a detection threshold. The shaft event is detected when the speed ratio is beyond the detection threshold.
-
Patent Agency Ranking
公开(公告)号：US09347373B2
公开(公告)日：2016-05-24
申请号：US14133919
申请日：2013-12-19
Applicant: Pratt & Whitney Canada Corp.
Inventor： David Menheere , Richard Kostka , Jean Dubreuil
CPC classification number: F02C3/113 , F02C3/107 , F02C7/36 , F05D2260/40311 , F16H3/72 , F16H57/082
Abstract: A gas turbine engine with a transmission having a variable ratio is discussed. A first gear train is in driving engagement with the low pressure spool and has a first output gear. A second gear train is in driving engagement with the high pressure spool and has a second output gear spaced apart from the first output gear. A third gear train defines a driving engagement between the low pressure spool and the low pressure compressor rotor with a variable transmission ratio. A fourth gear train is in driving engagement with the first and second output gears, and in driving engagement with the third gear train to determine the transmission ratio. A method of adjusting a speed of a low pressure compressor rotor of a gas turbine engine is also discussed.
Abstract translation: 讨论了具有可变比率的变速器的燃气涡轮发动机。 第一齿轮系与低压阀芯驱动接合并具有第一输出齿轮。 第二齿轮系与高压滑阀驱动接合，并具有与第一输出齿轮间隔开的第二输出齿轮。 第三齿轮系以可变传动比限定低压阀芯和低压压缩机转子之间的驱动接合。 第四齿轮系与第一和第二输出齿轮驱动接合，并且与第三齿轮系驱动接合以确定传动比。 还讨论了一种调节燃气轮机的低压压缩机转子的速度的方法。
-
公开(公告)号：US11560233B2
公开(公告)日：2023-01-24
申请号：US17462783
申请日：2021-08-31
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Dubreuil , Richard Ullyott
IPC: B64D27/02 , F02C7/32 , B64D27/24 , B64D35/02 , H02K7/102 , H02K7/108 , B64D41/00 , B60W20/30 , B60W20/40 , B64D35/08 , F02C7/36 , B64D27/14 , B64D27/08
Abstract: An aircraft power plant has: an electric motor; a compressor; a combustion engine; an output shaft drivingly engageable to a thrust generator for propelling an aircraft equipped with the aircraft power plant; and a transmission including a gearbox having a first input drivingly engaged by the electric motor, a first output drivingly engaging the compressor, a second input drivingly engageable by the combustion engine, and a second output drivingly engageable to the output shaft, wherein the transmission has: a propulsion configuration in which the output shaft and the compressor are drivingly engaged to the electric motor and to the combustion engine via the gearbox, and an auxiliary power unit configuration in which the combustion engine and the output shaft are at rest while the electric motor drivingly engages the compressor.
-
公开(公告)号：US11555453B2
公开(公告)日：2023-01-17
申请号：US17368317
申请日：2021-07-06
Applicant: Pratt & Whitney Canada Corp.
Inventor： Keith Morgan , Robert Peluso , Ghislain Plante , Eugene Gekht , Eric Durocher , Jean Dubreuil
IPC: F02C7/32 , F02C3/14 , F02C6/20 , F02C3/04 , F02C3/067 , F02C3/113 , F02C7/36 , F01D1/26 , F04D25/02
Abstract: A gas turbine engine has a first spool having a low pressure compressor section disposed forward of an air inlet along a direction of travel of the engine, and a low pressure turbine section disposed forward of the low pressure compressor section and drivingly engaged thereto. A second spool has a high pressure compressor section disposed forward of the low pressure compressor section, and a high pressure turbine section disposed forward of the high pressure compressor section and drivingly engaged thereto. The high pressure turbine section is disposed aft of the low pressure turbine section. An output drive shaft drivingly engages the low pressure turbine section and extends forwardly therefrom to drive a rotatable load. A method of operating a gas turbine engine is also discussed.
-
公开(公告)号：US09752500B2
公开(公告)日：2017-09-05
申请号：US13804799
申请日：2013-03-14
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Richard Ullyott , Lazar Mitrovic , Jean Dubreuil , Stephen Christopher Kenny , Guy Bouchard , Ilya B. Medvedev , Keith Morgan , Darius Jehangir Karanjia , Nashed Azer Youssef
CPC classification number: F02C3/113 , F02C3/107 , F02C7/36 , F02C9/56 , F05D2260/4031
Abstract: A gas turbine engine including at least one high pressure turbine rotor and at least one high pressure compressor rotor drivingly engaged to a rotatable high pressure spool, a low pressure spool rotatable independently of the high pressure spool, at least one low pressure turbine rotor drivingly engaged to the low pressure spool, and a rotatable load drivingly engaged to the low pressure spool. A fixed rotational speed ratio is defined between rotational speeds of the at high pressure turbine and compressor rotors. A fixed rotational speed ratio is defined between rotational speeds of the low pressure turbine rotor(s) and of the low pressure spool. A low pressure compressor rotor is in driving engagement with the low pressure spool through a variable transmission which defines a variable rotational speed ratio between the rotational speeds of the low pressure spool and of the low pressure compressor rotor.
-
公开(公告)号：US09316159B2
公开(公告)日：2016-04-19
申请号：US13754045
申请日：2013-01-30
Applicant: Pratt & Whitney Canada Corp.
Inventor： Jean Dubreuil , Stephen Kenny
CPC classification number: F02C7/36
Abstract: A gas turbine engine with a transmission having a first rotatable member coupled to an engine spool, a second rotatable member coupled to a compressor rotor, and coupled rotatable members defining at least first and second alternate transmission paths between the first and second members. Each transmission path defines a different fixed transmission ratio of a rotational speed of the second member on a rotational speed of the first member.
Abstract translation: 具有变速器的燃气涡轮发动机具有联接到发动机线轴的第一可旋转构件，联接到压缩机转子的第二可旋转构件以及限定第一和第二构件之间的至少第一和第二替代传动路径的可旋转构件。 每个传输路径限定第二构件的旋转速度与第一构件的旋转速度不同的固定传动比。
-
-
-
-
-
-
-
-
-
Search Results
28
records
(took 0.021 seconds)
