| 摘要 |
The invention relates to 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 position of the sealing slide relative to the gas exchange valve in the axial direction is continuously variable by means of an adjusting unit. It is provided that a sealing slide (10) is disposed coaxially to the gas exchange valve (12), is acted upon by the force of a coupling spring (24), and is displaceable axially back and forth by the valve control unit. The position of the sealing slide (10) is variable in the axial direction relative to the gas exchange valve (12) by means of an adjusting unit. |
