Patent ID: 7644691

Claim:
A device for varying the control times of gas exchange valves of an internal combustion engine, comprising: a driving wheel drive-connected to a crankshaft, and with a swashplate mechanism which has a driven element drive-connected to a camshaft, at least two pairings of first and second boundary walls are provided, a finger being provided for each of the pairings, each of the fingers engaging between the boundary walls of respective ones of the pairings, the boundary walls being connected fixedly in terms of rotation either to the driving wheel or to the driven element, and the fingers being connected fixedly in terms of rotation to the other of the driving wheel or the driven element, the boundary walls and the fingers being arranged with respect to one another in such a way that, when a maximum permissible value of a relative phase position of the crankshaft with respect to the camshaft is reached, each of the fingers comes to bear against one of the boundary walls.