Patent ID: 8365692
Filing Date: 2013-02-05
Classification: F01L

Abstract:
1. A valve drive for gas exchange valves of an internal combustion engine with at least one camshaft, which is mounted to rotate in a housing of the internal combustion engine, at least one cam support that is guided in a rotationally fixed and axially movable manner on the camshaft, as well as devices for axial movement of at least one cam support on the camshaft in opposite directions, comprising at least two engaging elements, which can be engaged with a right-hand or left-hand groove, wherein the right-hand groove and the left-hand groove are arranged directly adjacent to one another and undergo transition into each other or merge, wherein the cam support comprises at least one cam profile group with three different cam profiles and can be moved into three discrete shift positions, whose distance corresponds to the center distance of the cam profiles, and wherein the engaging elements are arranged in the axial direction of the camshaft at a distance that corresponds to the center distance of the cam profiles.