| 摘要 |
The engine has a cylinder (13) with a combustion chamber (18), a reciprocal piston in a cylinder and a crankshaft (11) rotatable in a crankcase. A valve housing (25) communicates with the cylinder via a gas outlet channel (21,22). A valve component works with the valve seat for adjustment between open and closed positions. The valve component is connected to a pressure gas driven activation component (29) comprising an activation chamber (37) in which is fitted an elastically deformable membrane (36) mechanically connected to the valve component. A conduit (30) connects the activation chamber with the engine crankcase so that after the engine starts crankcase pressure is conducted to the activation chamber to activate the membrane and the valve component in the direction of the closed position. |
