本文对能实现大充量、高压缩比、强挤流、大旋流的凸顶活塞阀控燃烧系统进行了理论分析和试验研究。结果表明:侧置气门汽油机采用该燃烧系统后,可在ε=7.5～8.5下正常工作,充气效率可达75%～80%。与传统的 L 形燃烧室相比,功率可提高20%左右,油耗率可降低10%左右,排温亦可下降50℃以上,这一水平已与顶置气门汽油机相当。 In this paper, the theoretical analysis and experimental research on the controllable combustion system of the crown piston valve which can realize high charge, high compression ratio, strong squish flow and large swirl flow are carried out. The results show that the lateral valve gasoline engine can operate normally with ε = 7.5 ~ 8.5 and the charging efficiency can reach 75% ~ 80% after adopting the combustion system. Compared with the traditional L-shaped combustion chamber, the power can be increased by about 20%, the fuel consumption rate can be reduced by about 10%, and the exhaust temperature can be reduced by more than 50 ° C, which is equivalent to that of the overhead valve gasoline engine.