Patent ID: 8109245

Claim:
A variable valve apparatus comprising: a control shaft rotated for controlling a lift amount of a valve body; a variable mechanism disposed displaceably near a drive cam, the variable mechanism following a profile of the drive cam at a position corresponding to a rotating angle of the control shaft to make a reciprocating motion; a split-type rocking mechanism including an input member receiving the reciprocating motion of the variable mechanism to make a rocking motion and an output member outputting the rocking motion of the input member, the input member and the output member being mutually connectable or disconnectable; a connection selection mechanism selecting a connected or disconnected state between the input member and the output member of the split-type rocking mechanism; and a valve actuating mechanism translating the rocking motion outputted from the output member of the split-type rocking mechanism to a corresponding open or close operation of the valve body, and wherein the split-type rocking mechanism is formed symmetrically on both sides about a plane perpendicular to the control shaft.