Patent ID: 8307796

Claim:
Camshaft adjuster for an internal combustion engine, comprising a camshaft adjuster mounted on a camshaft coaxial about a camshaft axis that acts as a transmission element to a drive wheel for a rotational drive of the camshaft and has an inner wheel arranged locked in rotation relative to the camshaft and an outer wheel that can rotate, and that is arranged coaxial, relative to the inner wheel, at least one inner wheel vane is arranged on the inner wheel and at least one outer wheel vane is arranged on the outer wheel, the inner wheel is formed from a base body from which the at least one inner wheel vane extends radially outward, pressure chambers are formed between the at least one outer wheel vane and the at least one inner wheel vane, the pressure chambers have peripheral-side pressure chamber surfaces, radial boreholes are formed in the inner wheel for supplying pressurized medium to the pressure chambers, and the at least one inner wheel vane has, within the pressure chamber surface, a recess into which the corresponding radial borehole opens, wherein the recess extends radially outward beginning in a region of the base body into the pressure chamber surface and along an entire length of the inner wheel vane.