Patent ID: 6467166
Filing Date: 2002-10-22
Classification: F01L,F02B,Y10T

Abstract:
A method for forming a three dimensional cam lobe of a camshaft for operating a rocker arm follower pivotal about an axis that is skewed to the rotational axis of said camshaft, said method comprising the steps of mounting of a camshaft blank having a blank cam lobe for rotation about an axis that is coincident to said rotational axis of the camshaft, rotationally driving a grinding wheel having a curved grinding surface about an axis that is skewed to the axis of rotation about which the mounted camshaft rotates, rotating said camshaft slowly about said camshaft axis while the grinding wheel is rotated about its axis, translating said axes around each other so that said grinding wheel circumscribes said camshaft axis so as to form the desired cam lobe configuration, and moving said grinding wheel axis relative to said camshaft axis so that said grinding wheel will contact the cam lobe surface along a line that conforms to the line of contact of said cam lobe with the rocker arm follower when mounted in an engine.