Patent ID: 7322324

Claim:
A valve operating apparatus of an internal combustion engine comprising: a drive shaft adapted to be linked to an engine crankshaft from which a driving force is transmitted to the drive shaft, the drive shaft having a drive cam; a control shaft whose angular position is adjusted depending on an engine operating condition, the control shaft having a coaxial shaft portion laid out coaxially with a rotation axis of the control shaft and a control cam whose axis is deviated from the control-shaft rotation axis; a rocking member that oscillates on the control cam, which is a fulcrum of oscillating motion of the rocking member, by an oscillating force converted from rotary motion of the drive cam; and a valve actuation member that oscillates on the coaxial shaft portion, which is a fulcrum of oscillating motion of the valve actuation member, by the oscillating force transmitted from the rocking member, for opening and closing an engine valve.