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    TORQUE TRANSFER COUPLING
    1.
    发明申请
    TORQUE TRANSFER COUPLING 有权

    公开(公告)号：US20220364611A1

    公开(公告)日：2022-11-17

    申请号：US17320306

    申请日：2021-05-14

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Mark SHIELDS ,  David MENHEERE ,  Dennis KIM

    IPC: F16D3/60

    Abstract: A coupling has: a first coupler rotatable about an axis and defining first connections distributed about the axis; a second coupler defining second connections distributed about the axis, the second connections offset from the first connections; and segments distributed about the axis and extending radially from the first connections to the second connections, a segment of the segments having a first end engaging a first connection of the first connections and a second end engaging a second connection of the second connections, the first end circumferentially offset from the second end, a face of the segment abutting against a face of the first coupler when the segment is inserted into the first connection in a first orientation such that a penetration depth of the segment into the first connection in the first orientation is less than the penetration depth in a second orientation opposite the first orientation.

    CONDENSATION COOLING SYSTEM FOR GAS TURBINE ENGINE
    3.
    发明申请
    CONDENSATION COOLING SYSTEM FOR GAS TURBINE ENGINE 有权

    公开(公告)号：US20180156119A1

    公开(公告)日：2018-06-07

    申请号：US15373049

    申请日：2016-12-08

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： David MENHEERE ,  Daniel ALECU

    IPC: F02C7/16 ,  F02C7/36

    Abstract: A cooling system for a gas turbine engine comprises a closed circuit containing a change-phase fluid, at least one heat exchanger configured to receive a first coolant from a first engine system for the change-phase fluid in the closed circuit to absorb heat from the first coolant, whereby the cooling system is configured so that the change-phase fluid at least partially vaporizes when absorbing heat from the at least one heat exchanger. The closed circuit has a cooling exchanger adjacent to an annular wall of a bypass duct, the cooling exchanger configured to be exposed to a flow of cooling air in the bypass duct for the change-phase fluid to release heat to the cooling air and condense at least partially, the cooling exchanger having conduits configured to feed the vaporized change-phase fluid from a heat exchange with the at least one heat exchanger to the cooling exchanger, and to direct condensed change-phase fluid by gravity from the cooling exchanger to the at least one heat exchanger.

    DIFFUSING GAS TURBINE ENGINE RECUPERATOR
    6.
    发明申请
    DIFFUSING GAS TURBINE ENGINE RECUPERATOR 审中-公开
    扩口式涡轮发动机重新起动

    公开(公告)号：US20160298542A1

    公开(公告)日：2016-10-13

    申请号：US15187884

    申请日：2016-06-21

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Andreas ELEFTHERIOU ,  David MENHEERE ,  Daniel ALECU ,  Darius Jehangir KARANJIA

    IPC: F02C7/10 ,  F28D21/00 ,  F02C7/14

    CPC classification number: F02C7/10 ,  F02C7/08 ,  F02C7/14 ,  F05D2220/32 ,  F05D2260/213 ,  F05D2260/96 ,  F28D9/0018 ,  F28D21/0003 ,  F28D2021/0026 ,  F28F13/08

    Abstract: A method of diffusing and cooling an exhaust flow in an exhaust duct of a gas turbine engine includes circulating the exhaust flow from a turbine section of the gas turbine engine to a recuperator extending within the exhaust duct, circulating air discharged from a compressor section to a combustor of the gas turbine engine through air passages of the recuperator, and cooling and diffusing the exhaust flow by circulating the exhaust flow through exhaust passages of the recuperator having a progressively increasing cross-sectional area and in heat exchange relationship with the air passages.

    Abstract translation: 一种在燃气轮机的排气管道中扩散和冷却排气流的方法包括将排气流从燃气涡轮发动机的涡轮部分循环到在排气管道内延伸的换热器，将从压缩机部排出的循环空气循环到 燃气涡轮发动机的燃烧器通过换热器的空气通道进行燃烧，并且通过使排气流循环通过具有逐渐增加的横截面积和与空气通道的热交换关系的换热器的排气通道来冷却和扩散排气流。

    HYBRID GAS TURBINE ENGINE AND TORQUE TRANSFER ASSEMBLY THEREFORE
    7.
    发明申请
    HYBRID GAS TURBINE ENGINE AND TORQUE TRANSFER ASSEMBLY THEREFORE 有权

    公开(公告)号：US20220316403A1

    公开(公告)日：2022-10-06

    申请号：US17216909

    申请日：2021-03-30

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Daniel ALECU ,  David MENHEERE

    IPC: F02C7/36 ,  F02C6/20

    Abstract: The torque transfer assembly can include a sleeve having an elongated internal opening, a shaft having an elongated body extending in the internal opening of the sleeve, a first coupler at a first end of the elongated body coupled to a gas turbine engine rotor, and a second coupler at a second end of the elongated body coupled to a generator, the second coupler opposite the first coupler relative to a length of the elongated body, the shaft being made of a metal, and a bushing extending around the elongated body of the shaft, trapped between the shaft and the sleeve, the bushing made of plastic, the bushing having a coefficient of thermal expansion greater than a coefficient of thermal expansion of the sleeve.

    BUFFER FLUID DELIVERY SYSTEM AND METHOD FOR A SHAFT SEAL OF A GAS TURBINE ENGINE
    8.
    发明申请
    BUFFER FLUID DELIVERY SYSTEM AND METHOD FOR A SHAFT SEAL OF A GAS TURBINE ENGINE 有权

    公开(公告)号：US20220235709A1

    公开(公告)日：2022-07-28

    申请号：US17155500

    申请日：2021-01-22

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Daniel ALECU ,  David MENHEERE

    IPC: F02C7/28 ,  F02C7/18 ,  F02C9/16 ,  F02C3/04

    Abstract: Systems and methods for delivering a buffer fluid to a shaft seal of a gas turbine engine are provided. An exemplary system includes, a buffer fluid source, one or more first conduits providing fluid communication between the buffer fluid source and the shaft seal along a first route, and one or more second conduits providing fluid communication between the buffer fluid source and the shaft seal along a second route different from the first route. A heat exchanger is also disposed along the first route to facilitate heat transfer between buffer fluid in the one or more first conduits and a cooling fluid.

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