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    AIRCRAFT POWER PLANT WITH A TRANSMISSION TO DRIVE AN ELECTRICAL MACHINE
    2.
    发明申请
    AIRCRAFT POWER PLANT WITH A TRANSMISSION TO DRIVE AN ELECTRICAL MACHINE 有权

    公开(公告)号：US20230096526A1

    公开(公告)日：2023-03-30

    申请号：US17484579

    申请日：2021-09-24

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Patrick VALOIS

    IPC: B64D35/02 ,  B64D27/24 ,  B64D27/10 ,  B64D31/06 ,  F16H47/00 ,  F01D15/02 ,  F01D15/10

    Abstract: An aircraft power plant comprising: a high-pressure spool including a high-pressure compressor, a high-pressure turbine, and a high-pressure shaft drivingly engaging the high-pressure turbine to the high-pressure compressor; a low-pressure spool including a low-pressure compressor, a low-pressure turbine, and a low-pressure shaft drivingly engaging the low-pressure turbine to the low-pressure compressor; an electrical machine operable as a generator; and a transmission having a first input drivingly engaged by the high-pressure shaft, a second input drivingly engaged by the low-pressure shaft, and an output drivingly engaging the electrical machine, the transmission having a coupling system selectively interconnecting the output with one of: the first input, with the second input disconnected from the output; the second input, with the first input disconnected from the output; and both of the first input and the second input.

    SPLIT COMPRESSOR GAS TURBINE ENGINE
    3.
    发明申请
    SPLIT COMPRESSOR GAS TURBINE ENGINE 有权

    公开(公告)号：US20220074349A1

    公开(公告)日：2022-03-10

    申请号：US17014051

    申请日：2020-09-08

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Patrick VALOIS ,  Hervé TURCOTTE ,  Ghislain PLANTE

    IPC: F02C7/36 ,  F02C7/32

    Abstract: A turboprop or turboshaft gas turbine engine includes a low pressure turbine drivingly engaged to an output shaft for driving a rotatable load. A low pressure compressor is de-coupled from the low pressure turbine, the low pressure compressor and turbine rotating independently from one another. A high pressure compressor is disposed downstream from the low pressure compressor and is in fluid communication therewith to receive pressurized air therefrom. A high pressure turbine is disposed downstream from the high pressure compressor and is drivingly engaged thereto via a high pressure shaft. The high pressure turbine is disposed upstream from the low pressure turbine and is in fluid communication therewith. An electric motor receives power from a power source, is drivingly engaged to the low pressure compressor, and is operable to drive the low pressure compressor independently from the low pressure turbine, the high pressure compressor and the high pressure turbine.

    GAS TURBINE ENGINE WITH CLUTCH SYSTEM BETWEEN LOW-PRESSURE COMPRESSOR AND LOW-PRESSURE TURBINE
    4.
    发明公开
    GAS TURBINE ENGINE WITH CLUTCH SYSTEM BETWEEN LOW-PRESSURE COMPRESSOR AND LOW-PRESSURE TURBINE 审中-公开

    公开(公告)号：US20230243310A1

    公开(公告)日：2023-08-03

    申请号：US18299754

    申请日：2023-04-13

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Ghislain PLANTE ,  Patrick VALOIS

    IPC: F02C7/36 ,  F02C7/32

    CPC classification number: F02C7/36 ,  F02C7/32 ,  F02C3/107

    Abstract: A gas turbine engine having: an engine core having, in serial flow communication, a low-pressure compressor, a high-pressure compressor, a high-pressure turbine drivingly connected to the high-pressure compressor, and a low-pressure turbine drivingly connected to an output shaft; and a clutch having a disengaged configuration in which the low-pressure turbine is drivingly disconnected from the low-pressure compressor such that, in the disengaged configuration, the clutch disengages the low-pressure turbine from the low-pressure compressor, and an engaged configuration in which the low-pressure turbine is drivingly connected to the low-pressure compressor, the low-pressure turbine drivingly connected to the output shaft in both of the engaged and disengaged configurations of the clutch.

    HYBRID POWER PLANT FOR AIRCRAFT
    6.
    发明申请
    HYBRID POWER PLANT FOR AIRCRAFT 有权

    公开(公告)号：US20210388733A1

    公开(公告)日：2021-12-16

    申请号：US17156933

    申请日：2021-01-25

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Patrick VALOIS ,  Hervé TURCOTTE ,  Richard FREER ,  Jonatan TREMBLAY ,  Eric LATULIPE

    IPC: F01D15/10 ,  F01D15/12 ,  F02C3/073

    Abstract: An hybrid aircraft power plant, has: a gas turbine engine having a high-pressure spool including a high-pressure compressor, a high-pressure turbine, and a high-pressure shaft drivingly engaging the high-pressure turbine to the high-pressure compressor, a low-pressure spool including a low-pressure compressor, a low-pressure turbine, and a low-pressure shaft drivingly engaging the low-pressure turbine to the low-pressure compressor; an electric motor drivingly engaged to the low-pressure shaft; and a torque-transmitting device operatively connected to the HP-shaft and having an engaged configuration in which the torque-transmitting device drivingly engages the electric motor to the high-pressure shaft and a disengaged configuration in which the torque-transmitting device disconnects the electric motor from the high-pressure shaft.

    VARIABLE THERMODYNAMIC CYCLE ENGINE
    7.
    发明申请
    VARIABLE THERMODYNAMIC CYCLE ENGINE 有权

    公开(公告)号：US20210231058A1

    公开(公告)日：2021-07-29

    申请号：US16774221

    申请日：2020-01-28

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Ghislain PLANTE ,  Patrick VALOIS

    IPC: F02C7/36 ,  F02C7/32

    Abstract: A gas turbine engine having: an engine core having, in serial flow communication, a low-pressure compressor, a high-pressure compressor, a high-pressure turbine drivingly connected to the high-pressure compressor, and a low-pressure turbine drivingly connected to an output shaft; and a clutch having a disengaged configuration in which the low-pressure turbine is drivingly disconnected from the low-pressure compressor such that, in the disengaged configuration, the clutch disengages the low-pressure turbine from the low-pressure compressor, and an engaged configuration in which the low-pressure turbine is drivingly connected to the low-pressure compressor, the low-pressure turbine drivingly connected to the output shaft in both of the engaged and disengaged configurations of the clutch.

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