本文介绍了汽油机可燃混合气形成装置的工作原理、发展趋势，重点介绍了近年来出现的高科技产品一汽油喷射系统的典型结构和研究动向。并对其优越性进行了分析。 This paper introduces the working principle and development trend of gasoline combustible mixture forming device, and introduces the typical structures and research trends of high-tech product gasoline injection system appearing in recent years. And analyzed its superiority.