【摘要】 通过实验与模型计算 ,分析了柴油 /汽油双燃料发动机准均质燃烧过程中粗暴现象的发生机理 ,研究结果表明 :柴油 /汽油双燃料发动机出现工作粗暴的主要原因是均质混合气区放热率过大。实验结果表明 :减小柴油喷油提前角、增大汽油混合气的过量空气系数都能有效地降低缸内压力升高率 ,从而降低发动机的工作粗暴程度更多还原

【Abstract】 The Mechanism of Roughness Phenomenon in the quasi homogeneous charge compression ignition combustion process in a diesel/gasoline dual fuel engine is investigated in this paper by using experimental and modeling analysis methods.The results show that the reason why the roughness phenomenon occurs is too high heat releasing rate during combustion process at homogeneous area.The experiment shows that the roughness can be reduced by retarding injection timing and reducing the gasoline concentration.更多还原