Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 26, 2008
Patent Application Number
10545679
Date Filed
February 17, 2004
Patent Primary Examiner
Patent abstract
A camshaft for an internal combustion engine includes a cam lobe for actuating a valve. The cam lobe has an opening ramp profile that acts to loft the valve gear away from contact with the cam lobe to a maximum lift of the valve, with the valve gear returning to contact with a closing ramp of the cam lobe sufficiently in advance of a minimum cam lobe closing ramp height so as to dissipate enough closing energy of the valve to minimize valve bounce after the valve contacts a corresponding valve seat.
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