The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2008
Filed:
Jul. 22, 2005
James A. Krisher, Fort Wayne, IN (US);
Kenneth E. Cooper, Toledo, OH (US);
Thomas L. Nahrwold, Swanton, OH (US);
Gordon W. Hunt, Roanoke, IN (US);
Ralph W. Baxter, Jr., Fort Wayne, IN (US);
Randy Sommer, Monroeville, IN (US);
James A. Krisher, Fort Wayne, IN (US);
Kenneth E. Cooper, Toledo, OH (US);
Thomas L. Nahrwold, Swanton, OH (US);
Gordon W. Hunt, Roanoke, IN (US);
Ralph W. Baxter, Jr., Fort Wayne, IN (US);
Randy Sommer, Monroeville, IN (US);
Dana Automotive Systems Group, LLC, Toledo, OH (US);
Abstract
A drive system designed to use a vehicle's existing hydraulic system to operate a controllable limited slip differential assembly. The limited slip differential assembly may be associated with the front axle, the rear axle, or the driveline between the front and rear axles. The differential assembly may also be used in combination that includes front, rear, or intermediate differential assemblies. The drive system further includes a friction clutch assembly for selectively engaging and disengaging an input member with an output member of the differential assembly, a fluid clutch actuator for selectively frictionally and variably loading the clutch assembly, and a fluid pump that is a common source of pressurized fluid for the fluid clutch actuator and the existing hydraulic system of the motor vehicle other than the fluid clutch actuator of the drive system. The fluid clutch actuator is actuated by fluid pressure generated by the fluid pump.