Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 4, 2009
Patent Application Number
11489217
Date Filed
July 19, 2006
Patent Primary Examiner
Patent abstract
A power transfer assembly for use in a motor vehicle and having a hydraulic coupling operable to transfer drive torque to a driveline in response to slip. The hydraulic coupling includes a transfer clutch, a clutch operator for engaging the transfer clutch, a fluid actuation system including a fluid pump for controlling movement of the clutch operator, and a magnetorheological pump clutch capable of selectively shifting the fluid pump between operative and inoperative states.
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