US Patent 7998010 Torque transfer device with hydrostatic torque control system

Patent 7998010 was granted and assigned to American Axle on August, 2011 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

American Axle

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7998010

Date of Patent

August 16, 2011

Patent Application Number

12690142

Date Filed

January 20, 2010

Patent Primary Examiner

‌

Edwin A Young

Patent abstract

A power transmission device includes a rotatable input shaft, a rotatable output shaft and a ring gear fixed for rotation with the input shaft. A carrier is fixed for rotation with the output shaft. A pump assembly includes an inner rotor supported for rotation on the carrier and an outer rotor encompassing the inner rotor. The outer rotor is in driving meshed engagement with the ring gear. The pump provides pressurized fluid to one of first and second fluid ports. A flow restrictor is moveable to selectively restrict fluid flow relative to one of the first and second ports.