Patent ID: 7926459

Claim:
A device ( 1 ) for opening and closing a valve ( 18 , 18 ′) of a valve assembly ( 17 ) of a combustion engine and for adjusting a stroke of the valve ( 18 , 18 ′), comprising: a camshaft ( 2 ), which has a cam ( 3 ); a working curve member ( 10 , 10 ′) for actuating the valve assembly ( 17 ) for opening and closing the valve ( 18 , 18 ′), wherein the working curve member ( 10 , 10 ′) is provided pivotably about the camshaft ( 2 ); a lever holder ( 5 ) pivotably mounted about the camshaft ( 2 ); a lever ( 22 ), one end of which is spaced from the camshaft ( 2 ) with a predetermined distance and pivotably coupled to the lever holder ( 5 ), the lever ( 22 ) bearing against the cam ( 3 ) for being pivoted with respect to the lever holder ( 5 ); and a connecting link ( 23 , 23 ′), which pivotably interconnects the working curve member ( 10 , 10 ′) and the lever ( 22 ), wherein the camshaft ( 2 ), the cam ( 3 ), the working curve member ( 10 , 10 ′), the lever holder ( 5 ), the lever ( 22 ) and the connecting link ( 23 , 23 ′) are configured and disposed relative to one another so that the valve ( 18 , 18 ′) opens and closes by rotation of the camshaft ( 2 ) and the stroke of the valve ( 18 , 18 ′) is adjustable by pivoting the lever holder ( 5 ) about the camshaft ( 2 ).