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    Driveshaft with two-stage stiffness
    1.
    发明授权
    Driveshaft with two-stage stiffness 有权
    驱动轴具有两级刚度

    公开(公告)号：US09416815B2

    公开(公告)日：2016-08-16

    申请号：US14503531

    申请日：2014-10-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Michael J. Grimmer ,  Mark Gehringer ,  Stephanie A. Ernster ,  Eric J. Defenderfer ,  Stephen H. Miller

    IPC: F16C1/02 ,  F16D3/10

    CPC classification number: F16C1/02 ,  B60K17/22 ,  F16C3/023 ,  F16C2326/06 ,  F16D1/0858 ,  F16D3/10 ,  F16D3/72 ,  F16D7/025 ,  F16D47/02 ,  F16D2001/102 ,  F16D2300/10 ,  F16F7/04

    Abstract: A two-stage stiffness driveshaft includes a hollow cylinder defined by a longitudinal axis, a first end, a distal second end, and a hollow cylinder stiffness. The driveshaft also includes an inner shaft extending through the hollow cylinder along the longitudinal axis and defined by a first end, a distal second end, and an inner shaft stiffness. The first end of the inner shaft is engaged with the first end of the hollow cylinder via a rotational clearance fit. The second end of the inner shaft is rotationally fixed to the second end of the hollow cylinder such that the first end of the inner shaft can twist to a predetermined angle with respect to the second end of the inner shaft. The inner shaft stiffness defines a first-stage stiffness of the driveshaft, and the inner shaft stiffness and the hollow cylinder stiffness together define a second-stage stiffness of the driveshaft.

    Abstract translation: 两级刚度驱动轴包括由纵向轴线，第一端，远端第二端和中空气缸刚度限定的中空圆柱体。 驱动轴还包括沿着纵向轴线延伸通过中空圆柱体并由第一端，远端第二端和内轴刚度限定的内轴。 内轴的第一端通过旋转间隙配合与中空圆筒的第一端接合。 内轴的第二端旋转地固定到中空圆筒的第二端，使得内轴的第一端可以相对于内轴的第二端扭转到预定的角度。 内轴刚度限定了驱动轴的第一级刚度，并且内轴刚度和中空气缸刚度一起限定了驱动轴的第二级刚度。

    DRIVESHAFT WITH TWO-STAGE STIFFNESS
    3.
    发明申请
    DRIVESHAFT WITH TWO-STAGE STIFFNESS 有权
    具有两级稳定性的DRIVESHAFT

    公开(公告)号：US20160097420A1

    公开(公告)日：2016-04-07

    申请号：US14503531

    申请日：2014-10-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Michael J. Grimmer ,  Mark Gehringer ,  Stephanie A. Ernster ,  Eric J. Defenderfer ,  Stephen H. Miller

    IPC: F16C1/02

    CPC classification number: F16C1/02 ,  B60K17/22 ,  F16C3/023 ,  F16C2326/06 ,  F16D1/0858 ,  F16D3/10 ,  F16D3/72 ,  F16D7/025 ,  F16D47/02 ,  F16D2001/102 ,  F16D2300/10 ,  F16F7/04

    Abstract: A two-stage stiffness driveshaft includes a hollow cylinder defined by a longitudinal axis, a first end, a distal second end, and a hollow cylinder stiffness. The driveshaft also includes an inner shaft extending through the hollow cylinder along the longitudinal axis and defined by a first end, a distal second end, and an inner shaft stiffness. The first end of the inner shaft is engaged with the first end of the hollow cylinder via a rotational clearance fit. The second end of the inner shaft is rotationally fixed to the second end of the hollow cylinder such that the first end of the inner shaft can twist to a predetermined angle with respect to the second end of the inner shaft. The inner shaft stiffness defines a first-stage stiffness of the driveshaft, and the inner shaft stiffness and the hollow cylinder stiffness together define a second-stage stiffness of the driveshaft.

    Abstract translation: 两级刚度驱动轴包括由纵向轴线，第一端，远端第二端和中空气缸刚度限定的中空圆柱体。 驱动轴还包括沿着纵向轴线延伸通过中空圆柱体并由第一端，远端第二端和内轴刚度限定的内轴。 内轴的第一端通过旋转间隙配合与中空圆筒的第一端接合。 内轴的第二端旋转地固定到中空圆筒的第二端，使得内轴的第一端可以相对于内轴的第二端扭转到预定的角度。 内轴刚度限定了驱动轴的第一级刚度，并且内轴刚度和中空气缸刚度一起限定了驱动轴的第二级刚度。

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