近年来,随着柴油机向高性能、低油耗方面发展,旧机型及新研制的柴油机面临着新的研究课题。在中小功率柴油机上采用直接喷射式(以下简称直喷式)燃烧室的探索和研究正在受到重视。对于一种燃烧系统来说,燃烧品质的好坏主要取决于混合气的形成,而混合气的形成却是在相当短的时间内和一定的空间中进行的。因此,不仅要求有合 In recent years, with the diesel engine to high-performance, low fuel consumption aspects, the old models and the newly developed diesel engine is facing new research topics. In the small and medium-power diesel engine using direct injection (hereinafter referred to as direct injection) combustion chamber exploration and research is receiving attention. For a combustion system, the quality of the combustion depends mainly on the formation of the mixture, and the formation of the mixture is in a relatively short period of time and in a certain space. Therefore, not only requires cooperation