Patent ID: 7240649

Claim:
A valve actuation device of an internal combustion engine, comprising: a rocker arm swingably supported by a first supporting shaft, the rocker arm being swung by a torque of a crankshaft of the engine; and two swing cams swingably supported by a second supporting shaft, the two swing cams actuating respective engine valves to make an open/close operation of the same by receiving the swinging movement from the rocker arm, wherein the rocker arm comprises: a cylindrical base portion through which the first supporting shaft passes; a first projected end that is provided at a first radially outside part of the cylindrical base portion in the vicinity of one axial end of the cylindrical base portion, the first projected end receiving the torque from the crankshaft for carrying out the pivotal movement of the rocker arm; and two second projected ends that are spaced from each other and provided at a second radially outside part of the cylindrical base portion, the second projected ends actuating the two swing cams when the rocker arm is swung, the first and second radially outside parts being opposite with respect to an axis of the cylindrical base portion.