Patent ID: 6085708
Filing Date: 2000-07-11
Classification: F01L

Abstract:
Device for changing a relative rotational position of a camshaft relative to a drive wheel of an internal combustion engine, comprising:an inner part connected nonrotatably with the camshaft, said inner part having radial ribs or vanes, anda driven compartmented wheel that has a plurality of compartments distributed around the circumference, which are subdivided by said ribs or vanes into two respective pressure chambers, which, when pressurized, rotate the camshaft relative to the compartmented wheel by pressure acting on the ribs or vanes,wherein changes in rotational position of the inner part and the compartmented wheel are hydraulically damped by a damping throttle between adjacent pressure chambers, said damping throttle being formed as a gap of a specified size between a radial end of a respective rib or vane and a facing circumferential lead extending wall.