Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
George Kadlicko0
Date of Patent
April 14, 2009
0Patent Application Number
112917530
Date Filed
December 1, 2005
0Patent Primary Examiner
Patent abstract
A hydraulic drive system for an actuator uses a pair of pressure compensated hydraulic machines to control flow to and from the drive chambers of the actuator by varying the controlled pressure of one of the machines. The machines are mechanically coupled to permit energy recovery and charge an accumulator to store supplies energy. The drive system may be combined with other services including a transmission for incorporation in a vehicle. The transmission uses a pressure compensated supply and torque control of the wheels.
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