Patent ID: 6766778
Filing Date: 2004-07-27
Classification: F01L,Y02T

Abstract:
In a valve mechanism with a variable valve opening cross section, in which the valve mechanism is disposed at an admission opening of an internal combustion engine and has a gas exchange valve, which is acted on by the force of a valve spring and is displaceable axially back and forth inside a guide by a valve control unit, the improvement comprisinga sealing slide (10) disposed coaxially to the gas exchange valve (12), the sealing slide (10) being displaceable axially back and forth by the valve control unit, a coupling spring (24) acting on and applying a force to the sealing slide (10), the position of the sealing slide (10) relative to the gas exchange valve (12) being variable in the axial direction by an adjusting unit, the adjusting unit essentially comprising a control slide (34) adjustable in the axial direction of the gas exchange valve (12) and disposed coaxially to both the gas exchange valve (12) and the sealing slide (10), the control unit being operable to jointly trigger movement of the gas exchange valve (12) and the sealing slide (10).