This paper presents the mechanism and advantages of rotating pistons for Sulzer diesel engines ZA40S. and describes the problems to be pay attention to in maintenance and operation of the engines.

• 介绍了苏尔寿ZA40S型柴油机所采用的的旋转活塞的运动机理及其独特的优点，并对该型机组在使用管理中需要注意的问题作了阐述。