Patent ID: 9605566
Date: 2017-03-28
CPC Classifications: F01L

Claim:
1. An adjustment shaft actuator with a reversal of the direction of rotation for lift-switchable valve trains of internal combustion engines, comprising: an adjustment shaft arranged parallel to a camshaft of a valve train and having at least one lever unit with at least one lever arm; at least one cam unit that has a cam and that is connected to the camshaft in a non-rotatable manner, whereby the at least one lever unit is arranged so as to be axially movable on the adjustment shaft or the at least one cam unit is arranged so as to be axially movable on the camshaft; and at least one adjustment unit provided in order to effectuate axial movement between the at least one lever unit and the at least one cam unit, by way of which the at least one lever arm can be brought into effective contact with the cam in order to bring about a rotation of the adjustment shaft by rotating the camshaft, wherein, for purposes of an effective contact with the at least one lever arm, the cam includes a first partial contour that runs along a circumference of the cam, starting from a base circle and extending to a cam end contour, includes a first ascending course with an axial offset in the radial direction.