Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 3, 2007
Patent Application Number
11133456
Date Filed
May 19, 2005
Patent Primary Examiner
Patent abstract
In a camshaft adjuster for an internal combustion engine comprising a control valve having a control piston slidably supported in a valve housing, an operating unit for adjusting the angular position of the camshaft relative to a crankshaft of the engine and a drive unit with an electric motor and a transmission structure for actuating the control piston, the transmission is non-self-locking so that backward movement of the valve piston can be achieved by a backward force on the valve piston.
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