Variable valve control for an internal combustion motor has a friction layer between the limit surfaces at the limit between the setter and the camshaft to hold the setter firmly at the camshaft during high torque peaks

摘要

The variable valve control, for an internal combustion motor, has an axial limit between the camshaft setter and the camshaft with a limit surface for the setter and a second limit surface for the camshaft. A protection (15) is between the limit surfaces (13,14) of the limit (10) to increase the friction value between the limit surfaces (13,14) as a friction layer. The friction layer is applied by flame spraying, high speed flame spraying, arc spraying or plasma spraying.