Clutch ball ramp actuator double locking mechanism

Details Clutch ball ramp actuator double locking mechanism Clutch ball ramp actuator double locking mechanism

1995-08-17

1996-04-09

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

192 40, 192 544, 192 5452, 192 84C, 192 93A, F16D 4300, F16D 1304, F16D 1342

Patent

active

055052851

ABSTRACT:
A ball ramp actuator for applying a driveline clutch clamping force to a clutch disc using an axial movement created when a control ring is rotated relative to an adjacent activation ring where rolling elements are disposed in opposed variable depth grooves formed in the control ring and likewise in the activation ring and where the rolling elements establish a variable axial separation distance, the ball ramp actuator also having a primary control clutch and a secondary control clutch where upon energizing an electromagnetic coil the primary control clutch energizes the ball ramp actuator and where the secondary control clutch frictionally couples a transmission input shaft to a pressure plate and also frictionally couples the control ring to the activation ring thereby establishing a relatively constant clutch clamping force.

REFERENCES:
patent: 1974390 (1934-09-01), Eason
patent: 2605877 (1952-08-01), Winther
patent: 2801719 (1957-08-01), Clerk
patent: 2937729 (1960-05-01), Sperr
patent: 4828083 (1989-05-01), Naudin

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