In a device for changing the angle of rotation of a camshaft arranged in a cylinder
head of an internal combustion engine relative to a drive wheel of the internal
combustion engine, wherein a hydraulic adjusting arrangement is arranged between
the drive wheel and the camshaft and is connected to a fluid circuit of the internal
combustion engine, and wherein the fluid supply to the adjusting arrangement is
controlled by an on/off valve, the on/off valve is mounted near the camshaft and
is supplied with fluid via the camshaft.