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    Gear manufacturing process
    1.
    发明授权
    Gear manufacturing process 有权

    公开(公告)号：US11326683B2

    公开(公告)日：2022-05-10

    申请号：US16437536

    申请日：2019-06-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Hai Xu ,  Jeffrey N. Heaton ,  Scott M. Neher ,  Brian T. King ,  Syed M. Raza ,  Travis Bussell

    IPC: F16H57/00 ,  F16H57/023 ,  F16H48/08 ,  B23F9/02 ,  B23P15/00 ,  F16H48/38

    Abstract: A method for controlling a process for manufacturing a bevel gear includes forming, via a first process, a ring gear and determining a first set of parameters associated with the ring gear, and forming, via a second process, the pinion gear, and determining a second set of parameters associated with the pinion gear. The ring gear and the pinion gear are paired, and a single-flank test is executed on the paired ring gear and pinion gear to determine a third set of parameters. The paired ring gear and pinion gear are assembled into a final assembly, and an end-of-line noise/vibration analysis of the final assembly is executed. The noise/vibration analysis, the first set of parameters, the second set of parameters, and the third set of parameters are evaluated, and one of the first process, the second process, the pairing process, and the assembly process are adjusted based thereon.

    STACKED PLANETARY GEAR SET
    5.
    发明申请
    STACKED PLANETARY GEAR SET 审中-公开
    堆叠式行星齿轮组

    公开(公告)号：US20140315679A1

    公开(公告)日：2014-10-23

    申请号：US13867492

    申请日：2013-04-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Hai Xu

    IPC: F16H57/08

    CPC classification number: F16H57/08 ,  F16H57/082 ,  F16H2003/442

    Abstract: A stacked or nested planetary gear set for a transmission includes a carrier member supporting for rotation a first set of planet gears, a second set of planet gears, and a third set of planet gears, wherein each of the second set of planet gears are intermeshed with the third set of planet gears. A first sun gear is intermeshed with each of the first set of planet gears. A first ring gear is intermeshed with each of the first set of planet gears. A second sun gear is directly connected to the first ring gear and is intermeshed with each of the second set of planet gears. A second ring gear is intermeshed with each of the third set of planet gears. The stacked planetary gear set may be axially aligned or axially offset.

    Abstract translation: 用于变速器的堆叠或嵌套的行星齿轮组包括支撑用于旋转第一组行星齿轮的载体构件，第二组行星齿轮和第三组行星齿轮，其中第二组行星齿轮的每个啮合 与第三套行星齿轮。 第一太阳齿轮与第一组行星齿轮啮合。 第一齿圈与第一组行星齿轮啮合。 第二太阳齿轮直接连接到第一环形齿轮并且与第二组行星齿轮中的每一个啮合。 第二个环形齿轮与第三组行星齿轮中的每一个啮合。 叠置的行星齿轮组可以轴向对准或轴向偏移。

    Stacked planetary gear assembly with improved lubrication
    9.
    发明授权
    Stacked planetary gear assembly with improved lubrication 有权

    公开(公告)号：US09803742B1

    公开(公告)日：2017-10-31

    申请号：US15212926

    申请日：2016-07-18

    Applicant: GM Global Technology Operations LLC

    Inventor： Kothamasi Sumithra Raju ,  Sudipto Ray ,  Leonid Basin ,  Hai Xu ,  Avinash Singh

    IPC: F16H47/04 ,  F16H57/04 ,  F16H1/46 ,  F16H57/08

    CPC classification number: F16H57/043 ,  F16H1/46 ,  F16H57/0484 ,  F16H57/0486 ,  F16H57/082 ,  F16H2003/442

    Abstract: A radially stacked planetary gear assembly provides improved lubrication fluid flow to the planet gear bearings of an outer planetary gear set which is especially important when the housing or outer planetary gear carrier is stationary. The assembly includes radially aligned or stacked inner and outer planetary gear sets each having a sun gear, a ring gear and a carrier having planet gears in constant mesh with the sun and ring gears wherein the ring gear of the inner gear set is also the sun gear of the outer gear set and the outer carrier is the assembly housing. The sun gear is disposed on a transmission shaft having lubrication passages which aligns with pluralities of radial openings in a hub housing. A circular plate or guide adjacent one side of the housing includes channels which align with the openings and functions as a lubrication director, channeling lubrication from the transmission shaft and the pluralities of radial openings in the housing hub to the outer bearings, shafts and planet gears.

    Active damper for torsional vibration and noise mitigation in a driveline
    10.
    发明授权
    Active damper for torsional vibration and noise mitigation in a driveline 有权

    公开(公告)号：US10274040B2

    公开(公告)日：2019-04-30

    申请号：US15481040

    申请日：2017-04-06

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Xiaofeng Mao ,  Hai Xu ,  Jeffrey N. Heaton ,  Scott C. Mrdeza

    IPC: F16F15/00 ,  F16F15/02 ,  F16F15/18 ,  F16F15/023 ,  F16F15/027 ,  F16F15/173

    Abstract: An active damping system for a driveline includes a prop shaft configured to transmit engine power from an engine to a load, a sealed damper housing, and an active damping fluid contained within the sealed damper housing. A viscosity of the active damping fluid is changeable based on a torsional vibration of the prop shaft. The active damping system further includes a piston fixed to a side of the prop shaft and in communication with the active damping fluid. The piston is configured to rotate about an axis of the prop shaft. The system further includes a viscosity changing unit in communication with the active damping fluid, and a controller operatively connected to the viscosity changing unit. The controller is configured to cause the viscosity changing unit to change a viscosity of the active damping fluid. The viscosity of the active damping fluid changes the torsional vibration.

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