Patent ID: 8375907

Claim:
A camshaft adjusting system of an internal combustion engine, comprising: a rotor; a stator, in which the rotor is mounted rotatably, a first camshaft and a second camshaft, which are concentrically arranged with respect to each other, the first camshaft having a first cam and the second camshaft having a second cam, one of the camshafts being driven by the stator and the other of the camshafts being driven by the rotor, the first camshaft and the second camshaft are rotatable with respect to each other in order to change phase angles of the first cam with respect to second cam; wherein at least one hydraulic vane cell is provided between the stator and the rotor in order to control rotation of the rotor relative to the stator, wherein the rotor and the stator are configured so that bearing gaps are formed in at least one bearing point between the rotor and the stator, the first and second camshafts being configured so that a sum of shape differences and positional differences between the first camshaft and the second is camshaft is smaller than the bearing gaps in the at least one bearing point between the rotor and the stator; and sealing elements, which are matchable to the bearing gaps, are provided in the bearing gaps between the rotor and the stator.