多因素作用下降低增压柴油机排放的试验研究  

Experimental Research on Emission Reduction of Turbocharged Diesel Engine under Multi-factor Condition

作　　者：冯丹华[1] 王铁[1] 冯星[1] 曹杰[1] 郭鹏[1] 王娜[1] 

机构地区：[1]太原理工大学车辆工程系,山西太原030024

出　　处：《车用发动机》2010年第5期73-76,80,共5页Vehicle Engine

基　　金：山西省国际科技合作项目的资助(2008081017)

摘　　要：首先对柴油中添加二甲醚的比例进行优化,然后对柴油机供油提前角和EGR率分别进行优化匹配,最后将优化的柴油机与原机进行试验对比。结果表明:经过优化后柴油机的动力性和经济性略有下降,排放性能得到优化,NOx排放大幅度降低,高负荷工况下炭烟排放降幅明显。The mixing ratio of diesel oil and DME was optimized,the fuel supply advance angle and EGR ratio were matched and finally the comparison experiments between optimized and original engine were carried out.The results show that the power and economy of optimized diesel engine decrease slightly,but the emission performance has been optimized.By the optimization,the NOx emission decreases substantially and the soot emission at high load decreases evidently.

关 键 词：柴油机 二甲醚 供油提前角 废气再循环 排放 

分 类 号：TK427.126[动力工程及工程热物理—动力机械及工程]