Patent ID: 8056517
Filing Date: 2011-11-15
Classification: F01L

Abstract:
1. A variable valve lift apparatus of an engine, comprising: a control shaft; a driving arm coupled around the control shaft and rotatable by a cam of a camshaft; a first rocker arm rotatably coupled around the control shaft, that is operated by the driving arm so as to drive a first valve through a first swing arm; a second rocker arm rotatably coupled to the control shaft, that is operated by the driving arm so as to drive a second valve through a second swing arm; and a mediating device rotatably coupled to the control shaft, that transmits a movement of the driving arm to the first rocker arm and the second rocker arm, wherein the control shaft comprises a circular cam that is eccentrically and rotatably coupled around an axis of the control shaft and wherein the mediating device comprises: