直喷式LPG柴/油混合燃料压燃发动机的研究  

Study on Direct Injection Compression Ignition Engine Fuelled with LPG/Diesel Fuel Blend

作　　者：张煜盛 何佳[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《内燃机学报》2006年第6期500-505,共6页Transactions of Csice

基　　金：国家重点基础研究发展规划项目(2001CB209207);教育部博士点基金项目(20020487022)

摘　　要：基于液态LPG/柴油混合燃料在油泵前按一定比例混合和缸内直喷压燃的构想,开发了液态LPG柴/油比例混合电子控制系统。对该控制系统进行的一系列性能测试结果表明,它能根据发动机不同工况的需要,任意调节液态LPG柴/油的混合比,且调整精度较高。应用该系统,进行了直喷式LPG柴/油混合燃料压燃发动机的性能试验。试验结果表明:直喷式LPG柴/油混合燃料压燃发动机具有与柴油机相同的动力性与燃料经济性,而其烟度、NOx和HC排放均优于原柴油机。For operation of LPG/diesel fuel blends on direct injection compression ignition engine, an electronic control system is developed to make wide range adjustment of LPG/diesel ratio according to engine operating conditions. Performance experiments were undertaken and the result showed that the control of LPG/diesel ratio is feasible and the system can accurately supply fuel blends to the engine. Experimental results also showed that the performance and exhaust emission characteristics of the engine operated with LPG/diesel fuel blend are superior to those of the original diesel engine.

关 键 词：LPG/柴油混合燃料 压燃发动机 供油系统 电子控制系统 

分 类 号：TK464[动力工程及工程热物理—动力机械及工程]