Trim ring gear for integrated drive generator

    公开(公告)号:US10451163B2

    公开(公告)日:2019-10-22

    申请号:US15723442

    申请日:2017-10-03

    Abstract: A trim ring gear for use in an integrated drive generator has a ring gear body extending between a first end and a second end. Outer gear teeth are formed on an outer surface, and inner gear teeth are formed on an inner surface. The outer tooth roll angle at A is between 16.0 and 17.5°, at B is between 17.5 and 190°, at C is between 22.0 and 23.5°, and at D is between 23.0 and 24.5°. The inner tooth roll angle at A is between 31.5 and 33.0°, at B is between 30.0 and 31.5°, at C is between 25.5 and 27.0°, and at D is between 24.0 and 25.5°. An integrated drive generator, and a method of replacing the trim ring gear are also disclosed and claimed.

    VARIABLE WOBBLER PLATE FOR INTEGRATED DRIVE GENERATOR

    公开(公告)号:US20190222154A1

    公开(公告)日:2019-07-18

    申请号:US15874160

    申请日:2018-01-18

    CPC classification number: H02P9/42 F04B1/2078 F04B1/2085 F04B35/04 H02P2101/30

    Abstract: A variable wobbler plate has a stub shaft and a pivot shaft. The pivot shaft has a smaller diameter portion and a larger diameter portion. The smaller diameter portion has a generally cylindrical outer periphery with a flat over a limited circumferential extent and a diameter to opposed portions of the generally cylindrical portion defining a first distance. A second distance is defined from an end of the smaller diameter portion spaced furthest from the stub shaft to an end of the larger diameter portion spaced closest to the stub shaft and measured along a central axis of the pivot shaft and defines a second distance. A ratio of the first distance to the second distance is between 0.60 and 0.75. An integrated drive generator and a method are also disclosed.

    Hydraulic unit gear shrouds
    40.
    发明授权

    公开(公告)号:US11028780B2

    公开(公告)日:2021-06-08

    申请号:US16355198

    申请日:2019-03-15

    Abstract: A gear shroud arrangement includes a plate defining an aperture therethrough. A riser tube has a first end and an opposed second end. The first end of the riser tube is connected to the plate and is aligned with the aperture. A mounting flange extends from the second end of the riser tube. A shroud member extends from the plate in a direction opposite the riser tube.

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