| 摘要 |
The present invention relates to a valve system for an internal combustion engine, the internal combustion engine including the valve system, and a valve actuation method for moving an intake/exhaust valve of the valve system. The internal combustion engine comprises a pressure source of pressurised fluid. The valve system comprises an exhaust or intake valve, a piston slidable within the housing and an actuator, wherein the actuator comprises an actuator housing having an axial extension between a first housing end and a second housing end, the first housing end has a first opening fluidly connected with the pressure source, a second piston end is connected to the valve through an opening in the second housing end for activating the valve between a closed position and an open position, a first piston face faces the first housing end, the piston comprises a second piston face arranged and displaced in relation to the first piston face along the axial extension and arranged in a second chamber defined by the actuator housing and the piston, and the piston comprises a fluid channel fluidly connecting the first chamber and the second chamber, so that the fluid is led from the first chamber to the second chamber to press onto the second piston face and open the valve. |
