192 clutches and power-stop control – Clutches – Automatic
Reexamination Certificate
2005-08-30
2005-08-30
Bonck, Rodney H. (Department: 3681)
192 clutches and power-stop control
Clutches
Automatic
C192S040000, C192S084700, C310S037000, C310S049030
Reexamination Certificate
active
06935476
ABSTRACT:
A clutch having a multiple pole electromagnetic actuator is useful in motor vehicle powertrain components such as transaxles, transfer cases, transmissions, differentials and the like. The electromagnetic actuator includes a stationary coil, a rotating, multiple pole stator and a rotating, multiple pole armature which is linked to the stator. Both the stator and the armature include multiple coils which are electrically connected in pairs. A cam or ball ramp assembly is disposed between the armature and a friction clutch pack. Energization of the stationary coil induces current in the coils of the stator and the respective coils of the armature. The magnetic flux and force generated rotates the armature relative to the stator, thereby actuating the cam or ball ramp assembly, which in turn, compresses the friction clutch pack.
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Bonck Rodney H.
Borg-Warner Inc.
Brinks Hofer Gilson & Lione
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