| 摘要 |
A lift-control device for a valve (2), valve-lift means. A first valve-lift means (5) with (6) a profile of a cam (11) or eccentric acting on a rocker (6) in order to cause it to oscillate about a first axis (B) so as to move the valve (2) according to a first valve-lift law; a second valve-lift means (10) with an auxiliary rocker, (10) which co-operates in contact with the first valve-lift means (5) for receiving a motion of oscillation about a second axis (C) and a profiled portion of one between said rocker (6) and said auxiliary rocker(20), having a profile that defines the second valve-lift law. |
