Patent ID: 6178935
Filing Date: 2001-01-30
Classification: F01L

Abstract:
A valve control device for an internal combustion engine comprising a gas exchange valve (1) for controlling an inlet and/or outlet cross section (13) on a combustion chamber of the engine, the gas exchange valve has an axially movable gas exchange valve member (3) with a valve member shaft (15) which is coupled to a piston rod (16), the gas exchange valve is embodied as one piece with the gas exchange valve member shaft (15), coupled to a differential piston (18) that is hydraulically actuated in a cylindrical housing (17), the differential piston (18) is embodied as two parts wherein the two differential piston parts are disposed in relation to one another in such a way that the two differential piston parts are operatively connected to each other in an axial direction and can execute a radial relative movement in relation to each other.