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    UNIFIED CURVED BEAM BEARING DAMPER
    1.
    发明申请
    UNIFIED CURVED BEAM BEARING DAMPER 有权

    公开(公告)号：US20210131307A1

    公开(公告)日：2021-05-06

    申请号：US16668684

    申请日：2019-10-30

    Applicant: United Technologies Corporation

    Inventor： Todd A. Davis ,  Russell B. Witlicki ,  Christopher M. Valva ,  Andrew Newton ,  David C. Kiely

    IPC: F01D25/16 ,  F16C27/04

    Abstract: A gas turbine engine component includes a ring comprising a single-piece component having an outer peripheral surface and an inner peripheral surface that surrounds an engine center axis, a plurality of outer diameter pedestals formed in the outer peripheral surface and circumferentially spaced apart from each other, and a plurality of inner diameter pedestals formed in the inner peripheral surface and circumferentially spaced apart from each other. A plurality of recesses are formed in the outer peripheral surface and are circumferentially spaced apart from each other.

    INTERSHAFT COMPARTMENT BUFFERING ARRANGEMENT
    2.
    发明申请
    INTERSHAFT COMPARTMENT BUFFERING ARRANGEMENT 审中-公开

    公开(公告)号：US20180306044A1

    公开(公告)日：2018-10-25

    申请号：US15496399

    申请日：2017-04-25

    Applicant: United Technologies Corporation

    Inventor： Russell B. Witlicki ,  Todd A. Davis ,  Francis Parnin

    IPC: F01D11/00 ,  F01D25/16 ,  F04D27/00 ,  F04D29/054

    Abstract: Aspects of the disclosure are directed to a system associated with an engine having a central longitudinal axis, including a first shaft axially extending along the central longitudinal axis, a second shaft coaxial with the first shaft, a first air seal that seals between the first shaft and the second shaft at a first axial location, a second air seal that seals between the first shaft and the second shaft at a second axial location, a first oil seal that provides intershaft sealing between the first shaft and the second shaft at a third axial location, a second oil seal that provides intershaft sealing between the first shaft and the second shaft at a fourth axial location axially adjacent to the third axial location, and a high pressure compressor that provides pressurized air to a first radially exterior side of the first air seal and to a second radially exterior side the second air seal.

    BEARING COMPARTMENT SCAVENGE CONTROL
    3.
    发明申请
    BEARING COMPARTMENT SCAVENGE CONTROL 审中-公开

    公开(公告)号：US20180149040A1

    公开(公告)日：2018-05-31

    申请号：US15362049

    申请日：2016-11-28

    Applicant: United Technologies Corporation

    Inventor： Russell B. Witlicki ,  Joseph J. Sodaro ,  Denman H. James

    IPC: F01D25/18 ,  F01D25/16

    Abstract: Aspects of the disclosure are directed to a system associated with an engine, comprising: a bearing compartment, a scavenge line coupled to the bearing compartment at a first end of the scavenge line that receives a fluid via the first end of the scavenge line, a fluid pump coupled to the scavenge line at a second end of the scavenge line to receive the fluid, and a flow control valve having a variable flow area and disposed in the scavenge line to control flow of the fluid in the scavenge line and the fluid pump.

    Damped anti-rotational systems
    8.
    发明授权
    Damped anti-rotational systems 有权

    公开(公告)号：US10591004B2

    公开(公告)日：2020-03-17

    申请号：US16366153

    申请日：2019-03-27

    Applicant: United Technologies Corporation

    Inventor： Christopher T. Anglin ,  Yuk-Kwan Brian Yuen ,  Russell B. Witlicki

    IPC: F16D65/02 ,  F02C7/36 ,  F02C7/00

    Abstract: A damped anti-rotational system is provided comprising a pawl carrier having an axis of rotation, a pawl pivotably mounted to the pawl carrier on a pivot joint, the pawl having a contact portion and a counterweight portion, a stop pin axially disposed in the pawl carrier and configured to contact the contact portion of the pawl in response to radially inward movement of the pawl, wherein the stop pin is mounted to the pawl carrier at a forward portion of the stop pin and an aft portion of the stop pin, wherein a forward O ring is disposed on the forward portion of the stop pin and an aft O ring is disposed on the aft portion of the stop pin.

    Intershaft compartment buffering arrangement
    9.
    发明授权
    Intershaft compartment buffering arrangement 有权

    公开(公告)号：US10513938B2

    公开(公告)日：2019-12-24

    申请号：US15496399

    申请日：2017-04-25

    Applicant: United Technologies Corporation

    Inventor： Russell B. Witlicki ,  Todd A. Davis ,  Francis Parnin

    IPC: F01D5/18 ,  F01D11/00 ,  F01D25/16 ,  F04D27/00 ,  F04D29/054 ,  F01D5/02 ,  F01D25/18

    Abstract: Aspects of the disclosure are directed to a system associated with an engine having a central longitudinal axis, including a first shaft axially extending along the central longitudinal axis, a second shaft coaxial with the first shaft, a first air seal that seals between the first shaft and the second shaft at a first axial location, a second air seal that seals between the first shaft and the second shaft at a second axial location, a first oil seal that provides intershaft sealing between the first shaft and the second shaft at a third axial location, a second oil seal that provides intershaft sealing between the first shaft and the second shaft at a fourth axial location axially adjacent to the third axial location, and a high pressure compressor that provides pressurized air to a first radially exterior side of the first air seal and to a second radially exterior side the second air seal.

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