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== Different two-stroke design types == | == Different two-stroke design types == | ||
[[Image:Arbeitsweise Zweitakt.gif|thumb|left|550px|A two-stroke engine, in this case with a [[tuned pipe|tuned expansion pipe]] illustrating the effect of a reflected pressure wave on the fuel charge. This feature is essential for maximum charge pressure ( | [[Image:Arbeitsweise Zweitakt.gif|thumb|left|550px|A two-stroke engine, in this case with a [[tuned pipe|tuned expansion pipe]] illustrating the effect of a reflected pressure wave on the fuel charge. This feature is essential for maximum charge pressure (volumetric efficiency) and fuel efficiency. It is used on most high-performance engine designs.]] | ||
Although the principles remain the same, the mechanical details of various two-stroke engines differ depending on the type. The design types of the two-stroke engine vary according to the method of introducing the charge to the cylinder, the method of scavenging the [[cylinder (engine)|cylinder]] (exchanging burnt exhaust for fresh mixture) and the method of exhausting the cylinder. | Although the principles remain the same, the mechanical details of various two-stroke engines differ depending on the type. The design types of the two-stroke engine vary according to the method of introducing the charge to the cylinder, the method of scavenging the [[cylinder (engine)|cylinder]] (exchanging burnt exhaust for fresh mixture) and the method of exhausting the cylinder. |