摘要
汽油机的实际工作循环是由两个子循环组成的复合循环，由此计算的热效率比通常奥托循环计算的更接近汽油机热效率的实际值。
The actual cycle for a gasoline engine is a complex cycle which consists of two subcycles.Considered the complex cycle, the efficiency for a gasoline engine is more similar to the actual efficiencythan the usual Otto cycle.
关键词
汽油机
子循环
复合循环
奥托循环
热效率
Gasoline engine, Subcycle, Complex cycle, Otto cycle, Heat efficiency
