Patent ID: 8235014
Filing Date: 2012-08-07
Classification: F01L

Abstract:
1. A valve drive for an internal combustion engine including a camshaft comprising cams for actuating gas-exchange valves, wherein at least one axially displaceable cam, which comprises several cam faces, is guided nonrotatably but with freedom of axial movement on the camshaft, wherein a stroke profile, which cooperates with an actuating pin for axial displacement of the axially displaceable cam or cam piece, is associated with either said at least one axially displaceable cam or an axially displaceable cam piece comprising several cams, and wherein the stroke profile of said at least one axially displaceable cam or cam piece comprises at least one stroke curve, wherein a guide element is associated with an end of the actuating pin which is configured to be engaged with the stroke curve of the stroke profile of said at least one axially displaceable cam or cam piece, said guide element being supported in such a way that it is configured to either rotate or pivot around an axis of the actuating pin.