This dissertation investigates the performance and emissions characteristics for both dimethyl ether ( dme ) and diesel fueled direct injection diesel engine . the theoretical study of the working process of dme engine are also carried out 本文研究了zs195单缸直喷柴油机燃用不同比例的二甲醚和柴油二元混合燃料的动力性和排放性，对其工作过程进行了理论分析。
2.
3 the performances and emissions characteristics for both dimethyl ether ( dme ) and diesel fueled direct injection diesel engine are investigated deeply and completely . the experimental results show that in the power and torque of dimethyl ether fueled zs195 diesel engine is better than the archetypal one 3系统、深入地研究了柴油机燃用纯二甲醚以及不同比例的二甲醚和柴油二元混合燃料的动力性和排放性，结果表明：柴油机燃用二甲醚在中、低速区，其功率和扭矩略优于原柴油机。
