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    High temperature face seal
    1.
    发明授权
    High temperature face seal 有权

    公开(公告)号：US11371521B2

    公开(公告)日：2022-06-28

    申请号：US16380726

    申请日：2019-04-10

    Applicant: BorgWarner Inc.

    Inventor： Rajmohan Chandramohanan ,  Zachary Ashton ,  Michael Jay Burkett

    IPC: F04D29/12 ,  F04D29/056 ,  F04D29/063 ,  F04D17/10 ,  F04D29/057 ,  F02B37/00

    Abstract: A turbomachine face seal includes a turbine wheel with a cylindrical shaft extending from the turbine wheel, defining an axis of rotation. The shaft may include a heat throttle, such as a piston ring and groove assembly, or a shaft weld pocket having an annular heat choke groove. Circumscribing the shaft is a casing and a seal ring having a groove with a seal element. To cool the seal element, a pressurized oil jet is directed toward the casing, and impinges against the casing. The oil jet may be angled or parallel with the axis of rotation. The casing may be configured to trap oil from the oil jet to cool the seal element.

    Bearing element with a smooth continuous profile
    2.
    发明授权
    Bearing element with a smooth continuous profile 有权

    公开(公告)号：US11703079B2

    公开(公告)日：2023-07-18

    申请号：US17255171

    申请日：2018-06-28

    Applicant: BORGWARNER INC.

    Inventor： Kenneth Bischof ,  Zachary Ashton

    IPC: F16C17/02 ,  F16C17/18 ,  F01D25/16 ,  F16C17/26

    CPC classification number: F16C17/028 ,  F01D25/166 ,  F16C17/18 ,  F16C17/26 ,  F16C2360/24

    Abstract: A bearing element includes an inner surface (54) configured to receive a cylindrical shaft (18). The inner surface (54) includes a smooth profile having a plurality of sections (502). Each section (502) having a taper portion (506) between a first arc-span point (512) and a second arc-span point (514), a constant-radius portion (508) between the second arc-span point (514) and a third arc-span point (516), and a transition portion (510) between the third arc-span point (516) and a fourth arc-span point (518). An inner-surface radius dimension (520) changes from an inner-diameter major dimension to an inner-diameter minor dimension at the taper portion (506) and back at the transition portion.

    HIGH TEMPERATURE FACE SEAL
    4.
    发明申请
    HIGH TEMPERATURE FACE SEAL 审中-公开

    公开(公告)号：US20200325908A1

    公开(公告)日：2020-10-15

    申请号：US16380726

    申请日：2019-04-10

    Applicant: BorgWarner Inc.

    Inventor： Rajmohan Chandramohanan ,  Zachary Ashton ,  Michael Jay Burkett

    IPC: F04D29/12 ,  F04D29/056 ,  F04D29/063 ,  F02B37/00

    Abstract: A turbomachine face seal includes a turbine wheel with a cylindrical shaft extending from the turbine wheel, defining an axis of rotation. The shaft may include a heat throttle, such as a piston ring and groove assembly, or a shaft weld pocket having an annular heat choke groove. Circumscribing the shaft is a casing and a seal ring having a groove with a seal element. To cool the seal element, a pressurized oil jet is directed toward the casing, and impinges against the casing. The oil jet may be angled or parallel with the axis of rotation. The casing may be configured to trap oil from the oil jet to cool the seal element. A second oil jet may be used for additional cooling. Alternatively, the turbomachine face seal may include a bellows, positioned between the casing and the shaft, which restricts entry of gasses and contaminants into the face seal.

    Compound air and mechanical bearing system and method
    5.
    发明授权
    Compound air and mechanical bearing system and method 有权
    复合式空气和机械轴承系统及方法

    公开(公告)号：US09534629B1

    公开(公告)日：2017-01-03

    申请号：US14960758

    申请日：2015-12-07

    Applicant: BorgWarner Inc.

    Inventor： Evan Lucas ,  Christian Longacre ,  Zachary Ashton ,  Sean Hastings ,  Srikar Yellapragada

    IPC: F16C21/00 ,  F16C17/02 ,  F16C32/06

    CPC classification number: F16C21/00 ,  F16C17/024 ,  F16C19/08 ,  F16C19/183 ,  F16C32/0614 ,  F16C41/001 ,  F16C2360/24

    Abstract: A bearing system and method may include a first bearing assembly that may have an inner race. An outer race may be disposed around the inner race and may be rotatable relative to the inner race. A second bearing assembly may be disposed around the first bearing assembly. The second bearing assembly may be an air bearing. The outer race may be engageable with the inner race through the engagement mechanism that acts on the outer race so that the inner and outer races rotate together.

    Abstract translation: 轴承系统和方法可以包括可具有内圈的第一轴承组件。 外圈可以围绕内圈设置并且可以相对于内圈旋转。 第二轴承组件可以围绕第一轴承组件设置。 第二轴承组件可以是空气轴承。 外圈可以通过作用在外圈上的接合机构与内圈接合，使得内圈和外圈一起旋转。

    Turbocharger purge seal including axisymmetric supply cavity
    7.
    发明授权
    Turbocharger purge seal including axisymmetric supply cavity 有权

    公开(公告)号：US10240610B2

    公开(公告)日：2019-03-26

    申请号：US14905452

    申请日：2014-07-18

    Applicant: BorgWarner Inc.

    Inventor： Allan D. Kelly ,  E. Perry Ellwood ,  Zachary Ashton ,  Robert T. Race

    IPC: F04D29/10 ,  F01D25/16 ,  F01D25/18 ,  F04D29/12 ,  F04D29/62 ,  F01D11/04 ,  F02B33/32 ,  F02B39/14 ,  F04D25/02

    Abstract: A turbocharger rotating assembly (125) includes a shaft (20) rotatably supported in a bearing housing (123) via bearings (26, 128), a compressor impeller (18) mounted on the shaft (20), and an oil flinger (122) disposed on the shaft (20) between the bearings (26, 128) and the compressor impeller (18). The turbocharger (100) further includes an insert (134) disposed in the shaft-receiving axial bore (120) so as to surround the oil flinger (122), and a purge seal (160) operatively positioned in an interface (131) between the insert (134) and the oil flinger (122), whereby the purge seal (160) is configured to minimize oil passage from the bearing housing (123) into the interface (131). An annular cavity (150) encircles the radially outward-facing surface (138) of the insert (134), the cavity (150) forming a portion of a fluid path configured to deliver pressurized fluid to the interface (131).

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