在一台增压中冷的电控单体泵柴油机上采用柴油/甲醇二元燃料燃烧的方式开展燃烧特性与烟度排放试验研究.结果表明:采用二元燃料燃烧方式后最大气缸压力,最大放热率和最大压力升高率都增加,且随着甲醇对柴油替代率的增加而增加,烟度排放随着甲醇对柴油替代率的增加而降低;燃油消耗率随着甲醇替代率的增加而增加,但有效热效率在高负荷时候明显提高且排气温度降低. The experiment of combustion characteristics and smoke emission was carried out on a supercharged cold intercooled single-block diesel engine with diesel / methanol binary fuel combustion.The results show that the maximum cylinder pressure after binary fuel combustion is the largest Both the rate of heat release and the rate of increase of maximum pressure increased, and with the increase of methanol substitution rate, the smoke emission decreased with the increase of methanol substitution rate. Fuel consumption rate increased with the increase of methanol substitution rate But the effective thermal efficiency obviously increases at high load and the exhaust temperature decreases.