Stroke adjusting device for valves of a combustion engine
A device for adjusting the valve lift ( 1 ) of the valves of a combustion engine comprising a lever ( 3 ) being driven by a camshaft ( 4 ), pushed against the camshaft ( 4 ) by a spring, which cooperates with at least one valve engagement means and is positioned by a positioning means ( 6 ).
1. A device for adjusting valve lift in a combustion engine, the device comprising:
a cam shaft;
a first bearing;
a second bearing;
a valve in lifting engagement with the second bearing;
a rocker lever having first and second opposite ends and a body area with a pivot between the first and second opposite ends;
a first roller mounted on the first end of the rocker lever in rolling contact with the first bearing;
a second roller mounted on the second end of the rocker lever in rolling contact with the second bearing;
a positioning rail engaging the rocker lever at the body area beside the pivot; and
a spring biasing the second roller into driven rolling contact with the cam shaft.
2. A device as defined in claim 1 , wherein the positioning rail contacts the body area of the rocker lever.
3. A device as defined in claim 1 , further comprising a third roller mounted on the body area of the rocker lever, and wherein the positioning rail contacts the third roller.