| 摘要 |
A torque coupling for use in a power transfer device. The torque coupling includes a friction clutch and a clutch actuator. The clutch actuator controls engagement of the friction clutch and has a first actuator plate rotatable about an axis, a second actuator plate adjacent to the first actuator plate, and a ballramp unit disposed between the first and second actuator plates. A piston assembly acts to induce rotation of the first actuator plate relative to the second actuator plate. Relative rotation between the first actuator plate and the second actuator plate induces linear movement of one of the first and second actuator plates along the axis to regulate engagement of the friction clutch.
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