Patent ID: 8413623
Filing Date: 2013-04-09
Classification: F01L

Abstract:
1. An internal combustion engine equipped with a cylinder head and comprising a variable valve control system in which a rocker arm is disposed between an engine valve and first and second cams for the engine valve, wherein the rocker arm is pivotally supported by a rocker arm shaft and is slidably movable thereon in an axial direction of the rocker arm shaft, 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 internal combustion engine comprising: a stopper provided separately from the rocker arm, and swingably supported on the cylinder head of the internal combustion engine by use of a support shaft mounted on said cylinder head parallel to the rocker-arm shaft, wherein when the stopper swings towards the rocker arm and engages with the rocker arm, the rocker arm is prohibited from sliding, when the stopper swings away from the rocker arm and disengages from the rocker arm, the rocker arm is allowed to slide, and the rocker arm includes a blocking member that is configured and arranged to limit slidable movement of the stopper, so as to restrict the sliding movement of the rocker arm within a predetermined range, when the stopper disengages from the rocker arm.