Patent ID: 7980212

Claim:
A variable valve lift apparatus comprising: a cam that is co-axially attached to a camshaft and rotates by the camshaft; a rocker arm, one end of which is rotatably coupled to the camshaft, wherein a relative rotation angle of the rocker arm around the camshaft is variable by an actuator; a cam follower, one end of which is pivotally coupled to the other end of the rocker arm, wherein a contact portion of the cam follower contacts the cam and receives rotational movement of the cam; and a swing arm that contacts the other end of the cam follower and drives a valve coupled to one end of the swing arm according to rotation of the cam; wherein the cam follower is disposed between the camshaft and the swing arm to transfer the rotational movement of the cam to the swing arm; wherein a first roller is disposed to the contact portion of the cam follower and contacts the cam; wherein a second roller is coupled to the other end of the cam follower and rotatably contacts the swing arm; and wherein the first roller is disposed between the second roller and the one end of the cam follower.