针对某冲压发动机驻涡燃烧室模型,进行了不同进口温度、进口速度系数和余气系数下燃烧室燃烧性能的试验研究,研究结果证明:随着进口速度系数的增加(0.20~0.35),点火总油气比和贫油熄火油气比增加,燃烧效率变化不明显;随着进口温度的增加(573~773K),点火总油气比和贫油熄火油气比下降,燃烧效率提高;随着余气系数的增加(1.1~2.1),燃烧效率提高.试验中获得最小点火总油气比为0.003 5,最小贫油熄火油气比为0.002 8,最高燃烧效率93%.研究证明了驻涡应用于冲压发动机燃烧室的可行性. The experimental research on the combustion performance of a ramjet engine in a vortex chamber with different inlet temperature, inlet velocity coefficient and residual gas coefficient has been carried out. The results show that with the increase of inlet velocity coefficient (0.20 ~ 0.35), ignition With the increase of inlet temperature (573 ~ 773K), the total gas-oil ratio of ignition and the oil-gas ratio of lean-off decreased, and the combustion efficiency increased. With the increase of residual gas ratio (1.1 ~ 2.1), the combustion efficiency is improved.The minimum total ignition gas-oil ratio is 0.003 5, the minimum lean-off oil-gas ratio is 0.002 8 and the maximum combustion efficiency is 93% .The research shows that the entrained vortex is applied to ramjet combustion Room feasibility.