Patent ID: 6892684

Claim:
A variable valve gear of substantially constant valve duration with variable valve lift, comprising: a cam shaft ( 1 ), a control cam ( 2 ) mounted on said cam shaft ( 1 ); a cam follower ( 3 ); a valve ( 4 ); a valve displacing device ( 5 ) for displacing said valve ( 4 ); a valve lever ( 6 ) between said cam follower ( 3 ) and said valve displacing device ( 5 ), said valve lever ( 6 ) being swivellably coupled to said valve displacing device ( 5 ); the swivel joint between said valve lever ( 6 ) and said valve displacing device ( 5 ) being substantially a non-moving swivel joint connection as regards said valve displacing device ( 5 ); a control lever ( 8 ) rotatable about a linearly displaceable axis ( 9 ) and swivellably coupled to said valve lever ( 6 ) at a swivel joint; an adjusting device ( 7 ) for displacing said axis ( 9 ) along a path; whereby the stroke of said valve ( 4 ) can be continuously variable from a maximum to a minimum, according the displacement of said axis ( 9 ) along said path.