Patent ID: 9097145
Filing Date: 2015-08-04
Classification: F01L

Abstract:
1. A continuously variable valve lift actuator of an engine, comprising: a rocker arm; a lift arm having a four-bar link structure to control an intake amount of air of an intake valve based on a running state of a vehicle; a link bar; a cam coupled to a cam shaft; and a pair of eccentric cams coupled to a control shaft, wherein the valve lift actuator is configured to change rotating angles of the rocker arm and the lift arm, and adjust a location and a length of the link bar by taking into consideration a rotating direction of the cam shaft and interference according to a layout of the engine to advance an open time of the intake valve, wherein the rocker arm is rotated within a preset angle range according to a rotational motion of the pair of eccentric cams coupled to the control shaft and a rotation motion of the cam coupled to the cam shaft, and the lift arm having one side coupled to the control shaft is rotated within the preset angle range, wherein a pair of flanges and a pair of coupling flanges spaced apart from each flange by a predetermined angle are disposed at both ends of the rocker arm in a direction perpendicular to a direction of a central axis of the rocker arm, respectively, and wherein one of the coupling flanges and the lift arm are rotatably connected to each other by one of lift arm links.