两种不同大小喷孔直径喷油器对柴油机组经济性的影响  

The influence of two injectors with different orifice diameters on the economy of diesel engine sets

作　　者：王金乐 常雪倩 张露 倪志伟 徐志强 WANG Jinle;CHANG Xueqian;ZHANG Lu;NI Zhiwei;XU Zhiqiang(Weichai Power Co.,Ltd.,Weifang 261061,Shandong,China)

机构地区：[1]潍柴动力股份有限公司,山东潍坊261061

出　　处：《柴油机设计与制造》2024年第1期1-4,共4页Design and Manufacture of Diesel Engine

摘　　要：柴油机喷油器喷孔直径影响喷油器的雾化特性,而喷油器的雾化特性对柴油机热效率、燃油消耗率、有害物排放、机械故障等有着重要的影响。以某电控单体泵柴油机组为例,分别使用喷孔直径为0.28 mm和0.30 mm的2种喷油器进行负荷试验,对比2种喷油器柴油机组的燃油缸内爆发压力、燃油喷射压力、涡前排温及燃油消耗率。结果表明:使用喷孔直径为0.28 mm喷油器的柴油机组,其经济性优于使用喷孔直径为0.30 mm喷油器的柴油机组。The orifice diameter of the fuel injector in diesel engines affects the atomization characteristics of the injector.Studying the atomization characteristics of the injector is of great significance for improving the thermal efficiency of diesel engines,reducing fuel consumption and harmful emissions,and preventing mechanical failures.Taking a certain electronic unit pump diesel unit as an example,two types of fuel injectors with orifice diameters of 0.28 mm and 0.30 mm were used for load tests,and the single cylinder detonation pressure,fuel injection pressure,vortex front temperature,and fuel consumption rate of the two types of fuel injectors were compared.The results show that the economy of diesel units using fuel injectors with a orifice diameter of 0.28 mm is better than that of diesel units using fuel injectors with a orifice diameter of 0.30 mm.

关 键 词：柴油机组 喷油器 喷孔直径 负荷特性 燃油消耗率 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]