澳大利亚的拉尔夫·萨里奇(Ralph Sarich)创制了一种据称凌驾于汪克尔转子发动机之上的天体轨道发动机(Orbital Engine)。装该发动机的汽车于1973年年底投入使用。构造及工作原理萨里奇发动机的活塞是一扁柱体(鼓形),位于发动机的中心部(图1)。与汪克尔发动 Ralph Sarich of Australia created an Orbital Engine that allegedly overrides the Wankel rotor engine. The car with the engine was put into service by the end of 1973. Structure and working principle The piston of the Saric engine is a flat cylinder (drum) located in the center of the engine (Figure 1). Wankel launched