Patent ID: 6427653
Filing Date: 2002-08-06
Classification: F01L,Y10T

Abstract:
An internal combustion engine with a valve, comprising:a camshaft; a cam which actuates the valve by torque of said camshaft, said cam being movable in a radial direction of said camshaft, said cam including a lift portion which moves forward and backward in a direction of the valve and a base circle portion, said cam having in a substantial center an opening for allowing forward and backward motion of said cam with respect to said camshaft, said opening having a portion corresponding to said base circle portion and engaged with said camshaft when said lift portion of said cam is maintained in a protruding position; a support mechanism which rotates said cam with said camshaft; and a first device which engages said cam with said camshaft and releases said cam from said camshaft in accordance with engine operating conditions.