Patent ID: 6792905
Filing Date: 2004-09-21
Classification: F01L,F02B

Abstract:
An internal combustion engine, comprising:a camshaft including a longitudinal axis and at least one cam lobe, said cam lobe including a portion projecting beyond a base circle of said cam lobe for periodically engaging a valve, said camshaft further including an outer annular bearing surface disposed in eccentric relation with respect to said camshaft longitudinal axis, and a compression release mechanism, comprising: a compression release member including an auxiliary cam and an inner annular bearing surface rotatably supported on said outer annular bearing surface between a first position corresponding to engine cranking speeds in which said auxiliary cam is positioned outside of said cam lobe base circle to engage and at least partially open said valve, and a second position corresponding to engine running speeds in which said auxiliary cam is positioned within said cam lobe base circle and does not engage said valve.