Patent attributes
A variable valve lift apparatus includes a cam, a camshaft that rotates the cam, at least one cam follower selectively connected to an end lever such that the cam follower opens and closes a valve corresponding to rotation of the cam, and a variable device selectively connecting the cam follower with the end lever to regulate whether or how much the valve is opened and closed. Three cam followers may be provided: two outer cam followers fixedly connected to the end lever, and an inner cam follower interposed between and selectively connected to the outer cam followers corresponding to an operation of the variable device. The variable device may include a first pin in one of the outer cam followers, a second pin in the inner cam follower, and a third pin in the other outer cam follower. The pins may be configured to move together.
