| 摘要 |
The invention relates to a two-stroke internal combustion engine in which at least one inlet and outlet valve arranged in the cylinder head is assigned to each cylinder. In order to achieve the most efficient scavenging possible of the cylinder chamber, the shaped closure element of the inlet valve is to be on the outside such that, through interaction with the enclosing walls of the inlet valve (7) and the combustion chamber (6) when the valve (8) is in the opened state, an inlet air or inlet mixture jet penetrating the cylinder chamber is produced. It is expedient for the closure element (12) of the inlet valve (8) to be designed so that it forms a ring nozzle-shaped inlet gap (18) with the enclosing walls of the inlet duct (7) and the cylinder chamber (6) or a combustion chamber niche (16) preconnected to the cylinder chamber. <IMAGE>
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