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    Passive lubrication system for gas turbine engine gearbox during wind milling
    4.
    发明授权
    Passive lubrication system for gas turbine engine gearbox during wind milling 有权

    公开(公告)号：US10711877B2

    公开(公告)日：2020-07-14

    申请号：US15903110

    申请日：2018-02-23

    Applicant: General Electric Company

    Inventor： Kenneth Lee Fisher ,  George Hanna Ghanime ,  Bugra Han Ertas ,  Darren Lee Hallman

    IPC: F16H57/04 ,  F01D25/20 ,  F02C7/06 ,  F02C7/36 ,  F01D25/18

    Abstract: A gearbox assembly for a gas turbine engine used in an aircraft having passive lubrication capabilities during wind milling includes a gearbox housing, a gear train assembly housed within the gearbox housing, a lubricant in the gearbox housing for lubricating the gear train assembly, and a first scavenge port formed in the gearbox housing. The first scavenge port is changeable between an open position and a closed position. Further, the first scavenge port remains in the open position during normal operation of the gas turbine engine to allow the lubricant to drain from the gearbox housing. Upon occurrence of a loss of lubricant pressure in the gearbox assembly, the first scavenge port is changed to the closed position to trap at least a portion of the lubricant in the gearbox housing. Thus, the trapped lubricant provides passive lubrication to the gear train assembly during the loss of lubricant pressure.

    BEARING CAGES FOR ROLLER BEARING ASSEMBLIES
    5.
    发明申请
    BEARING CAGES FOR ROLLER BEARING ASSEMBLIES 审中-公开

    公开(公告)号：US20180135697A1

    公开(公告)日：2018-05-17

    申请号：US15351885

    申请日：2016-11-15

    Applicant: General Electric Company

    Inventor： Kenneth Lee Fisher ,  Bugra Han Ertas

    IPC: F16C33/46

    CPC classification number: F16C33/4682 ,  F16C33/4641 ,  F16C2360/23

    Abstract: A bearing cage for a roller bearing assembly includes an annular body defining a circumferential centerline extending therethrough. The annular body includes an outer circumferential surface, an opposing inner circumferential surface, and a plurality of circumferentially spaced roller cavities defined therein. Each roller cavity of the plurality of roller cavities is configured to receive an associated roller element. Each roller cavity includes a first radial cross-wall defined within the annular body extending from the outer circumferential surface to the inner circumferential surface. Each roller cavity further includes an opposing second radial cross-wall defined within the annular body extending from the outer circumferential surface to the inner circumferential surface. At least a portion of the first radial cross-wall and at least a portion of the second radial cross-wall are complimentary to the associated roller element.

    Bearing cages for roller bearing assemblies
    10.
    发明授权
    Bearing cages for roller bearing assemblies 有权

    公开(公告)号：US10451113B2

    公开(公告)日：2019-10-22

    申请号：US15598615

    申请日：2017-05-18

    Applicant: General Electric Company

    Inventor： Kenneth Lee Fisher

    IPC: F16C33/46 ,  F16C19/26 ,  F16C33/66 ,  F01D25/16

    Abstract: A bearing cage for a roller bearing assembly. The roller bearing assembly includes an inner ring, an outer ring, and a plurality of roller elements. The bearing cage includes an annular body extending along an axial direction. The annular body is configured to be positioned between the inner annular ring and the outer annular ring and configured to receive a plurality of roller elements. The annular body includes a first end including a first inner radial surface opposite the inner annular ring. The annular body further includes a second end opposite the first end. The second end includes a second inner radial surface opposite the inner annular ring. The first end extends axially beyond the inner annular ring and the second end extends axially beyond the inner annular ring.

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