Valve gear assembly for an internal combustion engine

摘要

A Valve gear assembly for an internal combustion engine comprises a transfer device (36) interposed between the cam (18) and the valve (16) for allowing varying the valve stroke. The transfer device (36) comprises: an intermediate lever (38) having a roller assembly (40) acted upon by the cam (18) and configured to transmit an actuating force thereto; an adjustable crank element (50) comprising a guide path (52) along which the roller assembly (40) is guided; an actuator (54) for adjusting the position of the crank element (50) relative to said intermediate lever (38) so as to modify the portion of guide path (52) along which said roller assembly (40) of said actuating lever is guided. The intermediate lever (38) is fixed by a pivot (44) that is itself slideably mounted.