Patent ID: 7980213
Filing Date: 2011-07-19
Classification: F01L,Y10T

Abstract:
1. An internal combustion engine equipped with a variable valve control system comprising an engine valve, a camshaft having first and second cams thereon for selectively engaging the engine valve, and a rocker arm disposed between the engine valve and the camshaft; wherein the rocker arm is pivotally supported on a rocker arm shaft and is slidably movable in an axial direction of the rocker arm shaft, and the rocker arm is also axially slidable in response to a movement of the rocker arm shaft to selectively engage with one of said cams, whereby control of the engine valve is switchable between said cams, said variable valve control system further comprising: an actuator for selectively moving the rocker arm shaft in the axial direction thereof; a stopper that is engageable with the rocker arm to temporarily prevent the rocker arm from sliding; and a release member which is configured to be activated by an axial movement of the rocker arm shaft, and which is operable to disengage the stopper from the rocker arm.