增压柴油机废气再循环排放特性的试验研究  

Experimental Research on EGR Emission Control of Turbocharged Diesel Engine

作　　者：李彦[1] 陈熔[1] 樊瑞军[1] 郑利锋[1] 

机构地区：[1]常州机电职业技术学院汽车工程系,江苏常州213164

出　　处：《拖拉机与农用运输车》2006年第6期61-63,65,共4页Tractor & Farm Transporter

摘　　要：柴油机排放控制是目前柴油机技术领域关注的焦点,柴油机排放的难点在于控制NOx和PM。对于NOx,目前最主要的手段是采用EGR。本研究工作在一台增压柴油机上进行,得到了不同工况下柴油机排放污染物的分布情况及不同的EGR率对排放浓度的影响。通过采用电控EGR技术,在其他排放污染物增加不多的情况下,使NOx降低27%。Emission control is now the focus of diesel technology development, NOx and PM are the most important ones to be solved. For NOx ,right now,the most eftective way is the use of EGR. This test was done on a turboeharged diesel engine, through an experimental investigation,the exhaust emissions under variety of operating modes and different EGR rates were examined. The results show that the exhausted NOx emission is improved about 27% and other emissions increased a little at same time.

关 键 词：增压柴油机 排放 废气再循环 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]