F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 48/22 (2006.01) F16D 13/04 (2006.01) F16D 13/42 (2006.01) F16D 27/112 (2006.01) F16D 43/00 (2006.01)
Patent
CA 2143065
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.
Borden Ladner Gervais Llp
Corporation Eaton
LandOfFree
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