POWER TRAIN WHICH IS FITTED WITH AN ACTUATING PUSH-ROD CONTROLLED BY A CAM TRACK CARRIED BY A CONNECTING ROD

摘要

The invention relates to a power train (10) of a motor vehicle, comprising: - a crankshaft (12) mounted rotatably about an axis of rotation (X); - at least one connecting rod (14) having a head (28) mounted rotatably on a crank pin (18) associated with the crankshaft (12); - at least one actuating push-rod (44) sliding in a plane perpendicular to the axis of rotation (X) of the crankshaft (12) between an extended position towards which it is recalled, and a retracted position; - a cam track (48) which is turned by the crankshaft (12) to push the push-rod (44) towards the retracted position thereof on each revolution of the crankshaft (12), the free end (46) of the push-rod (44) forming a cam follower; characterized in that the cam track (48) is carried by the connecting rod (14).