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    • 10. 发明授权
    • Electric drive camshaft phaser with torque rate limit at travel stops
    • 电动驱动凸轮轴相位器,在行程停止时具有转矩限制
    • US08555836B2
    • 2013-10-15
    • US12965057
    • 2010-12-10
    • Pascal DavidPierre KimusMichael J. FoxDaniel R. Cuatt
    • Pascal DavidPierre KimusMichael J. FoxDaniel R. Cuatt
    • F01L1/34
    • F01L1/344F01L1/352F01L2001/34476F01L2001/3521
    • A camshaft phaser controllably varies the phase relationship between a crankshaft and a camshaft in an internal combustion engine. The camshaft phaser includes an input member rotatable by the crankshaft. The input member is connected through a gear drive to an output member which is fixed to the camshaft. A rotational actuator acting on the gear drive unit causes relative rotation between the input member and the output member. A first stop member is rotatable with the input member in a one-to-one relationship. A second stop member is rotatable with the output member in a one-to-one relationship to limit relative angular travel between the input member and the output member. A torque absorption means is provided for limiting the rate at which torque is applied from the rotational actuator to the gear drive unit when the second stop member makes contact with the first stop member.
    • 凸轮轴相位器可控地改变内燃机中的曲轴和凸轮轴之间的相位关系。 凸轮轴相位器包括可由曲轴旋转的输入构件。 输入构件通过齿轮传动连接到固定到凸轮轴的输出构件。 作用在齿轮驱动单元上的旋转致动器引起输入构件和输出构件之间的相对旋转。 第一止动构件可以与输入构件以一对一的关系旋转。 第二止动构件可与输出构件以一对一关系旋转,以限制输入构件和输出构件之间的相对角行程。 提供了一种扭矩吸收装置,用于当第二止挡件与第一止动件接触时,限制从旋转致动器向齿轮传动单元施加扭矩的速度。