| 摘要 |
A two-stroke engine having charge stratification for portable, manually guided implements is provided. Formed in a cylinder is a combustion chamber that is delimited by a reciprocating piston that by means of a connecting rod drives a crankshaft in a crankcase. The combustion chamber has an exhaust port for exhaust gases and an intake port for rich mixture. The intake port forms one end of a feed channel, the other end of which opens into the crankcase. Between its ends, the feed channel is connected with a mixture-forming device. The crankcase has an air inlet for pure combustion air, which passes via a transfer channel from the crankcase into the combustion chamber. The intake port of the feed channel into the combustion chamber is, in the stroke direction of the piston, provided above the air inlet into the crankcase. At least a portion of the feed channel is embodied as an external component of the engine.
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