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    • 8. 发明申请
    • HYDRAULICALLY OPERATED CLUTCH ACTUATOR
    • 液压操作离合器执行器
    • US20160230816A1
    • 2016-08-11
    • US15017836
    • 2016-02-08
    • American Axle & Manufacturing, Inc.
    • Robert J. DeGowskePaul J. ValenteJames P. Downs
    • F16D25/06F16D48/02F16D11/14
    • F16D25/083F16D11/10F16D48/02
    • A clutched device including an actuator and a clutch. The actuator can include a housing and a piston having a first, second, and third face. The first face and the housing can define a first chamber. The second face and the housing can define a second chamber. The second face can have a greater surface area than the first face. The third face and the housing can define a third chamber, isolated from the first and second chambers. A conduit can couple the first and second chambers. A vent can be coupled to the third chamber. A pump can pump fluid from a reservoir to the first chamber. A valve can selectively inhibit fluid communication between the second chamber and the reservoir. A shift element can be coupled to the piston for common translation and can move a clutch member between first and second positions.
    • 一种包括致动器和离合器的离合器。 致动器可以包括壳体和具有第一,第二和第三面的活塞。 第一面和壳体可以限定第一腔室。 第二面和壳体可以限定第二腔室。 第二面可以具有比第一面更大的表面积。 第三面和壳体可以限定与第一和第二腔隔离的第三腔室。 管道可以联接第一和第二腔室。 排气口可以联接到第三室。 泵可以将流体从储存器泵送到第一室。 阀可以选择性地抑制第二室和储存器之间的流体连通。 变速元件可以联接到活塞用于共同平移,并且可以在第一和第二位置之间移动离合器构件。
    • 9. 发明申请
    • DUAL PISTON ACTUATOR
    • 双活塞执行器
    • US20160108972A1
    • 2016-04-21
    • US14516026
    • 2014-10-16
    • American Axle & Manufacturing, Inc.
    • James P. DownsPaul J. Valente
    • F16D25/08
    • F16D25/083F16D25/06F16D25/10F16D29/005F16D48/02F16D48/0206F16D48/06F16D2025/081F16D2121/04
    • A power transmitting component can include a friction clutch, hydraulic ram, and an actuator. The actuator can include first and second pistons, and a resilient member. The resilient member can translate the first piston to provide a high volume of fluid at low pressure to the ram when a pressure in a first chamber is less than a predetermined pressure and the second piston is translated in a first direction. The resilient member can compress between the first and second pistons to permit relative motion between the pistons when the pressure is equal to, or greater than, the predetermined pressure and the second piston is translated in the first direction. The second piston provides a low volume of fluid at high pressure to the ram when pressure in the first chamber is equal to, or greater than, the predetermined pressure and the second piston is translated in the first direction.
    • 动力传递部件可以包括摩擦离合器,液压油缸和致动器。 致动器可以包括第一和第二活塞以及弹性构件。 当第一室中的压力小于预定压力并且第二活塞在第一方向上平移时,弹性构件可以平移第一活塞以在低压下向冲头提供大体积的流体。 当压力等于或大于预定压力并且第二活塞在第一方向上平移时,弹性构件可以在第一和第二活塞之间压缩以允许活塞之间的相对运动。 当第一室中的压力等于或大于预定压力并且第二活塞在第一方向上平移时,第二活塞在高压下向冲头提供低体积的流体。