本文提出了一种采用缸内直接喷射的新型汽油机燃烧系统。在压缩冲程的后期。用顶端油孔分布不均匀的多孔油嘴将汽油直接喷入气缸,火花塞布置在油束较密的部位,以保证可靠的点火。对供油系统、点火系统、燃烧室、缸内空气运动等多种参数进行了优化,阐述了它们对燃烧系统的影响规律。 In this paper, a new gasoline engine combustion system with direct injection in cylinder is proposed. Late in the compression stroke. The uneven distribution of the top hole with a porous nozzle of gasoline directly into the cylinder, spark plugs arranged in the dense part of the oil, in order to ensure reliable ignition. Various parameters such as oil supply system, ignition system, combustion chamber, air movement in cylinder were optimized, and their influence on combustion system was expounded.