| 摘要 |
A friction clutch driven plate for motor vehicles is of the kind in which a friction facing carrier assembly is mounted for limited rotation relative to a hub, such limited rotation being controlled by damping springs and a friction damper. Centrifugal control of the friction damper is by a pendulum device in the form of eccentric collars pivoting on stop pins and engaging apertures in an intermediate plate frictionally engaged with the hub. At low rotational speeds the stop pins can move within the collars which can also tilt to allow limited relative rotation between the carrier assembly and the hub with low friction damping. At higher speeds the collars are effectively locked in place to give high friction damping. By suitable arrangement of windows for the damping springs this also has the effect of reducing relative rotation controlled by a low rate spring only required to damp transmission noise during engine idling.
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