Electromagnetic clutch having ball ramp actuator and torsion...

Details Electromagnetic clutch having ball ramp actuator and torsion... Electromagnetic clutch having ball ramp actuator and torsion...

2005-08-30

2005-08-30

Rodriguez, Saul (Department: 3681)

192 clutches and power-stop control

Clutches

Automatic

C192S084700, C180S247000

Reexamination Certificate

active

06935475

ABSTRACT:
An electromagnetic clutch for motor vehicle drive line applications includes a friction clutch pack, a ball ramp actuator and an electromagnetic coil. The ball ramp actuator includes a pair of circular members having opposed pairs of arcuate recesses receiving load transferring members and a torsion spring which provides a restoring force to return the circular members to their center, disengaged positions. Improved clutch control, particularly during disengagment, is achieved by this ball ramp actuator configuration.

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