摘要
介绍了自行设计的增压直喷柴油机EGR率控制装置 ,试验研究了不同EGR率对发动机各工况性能和排放的影响规律 ,为满足欧Ⅱ标准确定了各个工况的最佳EGR率。以此为基础 ,设计了EGR电控系统 ,并用于柴油机的实际控制。试验结果表明 ,使用设计的EGR电控系统后 ,大大降低了该柴油机的氮氧化物排放 ,使 1
The effects of EGR rates on the performance and emission of the engine in different working conditions are studied by engine tests and the optimum EGR rate for different working modes is determined for meeting the EURO Ⅱ emission standard On these bases,an electronically controlled EGR system is designed The test results show that with the help of the EGR control system,the NOx emission of the engine can be greatly reduced,with HC,CO and particulate emissions also meeting the requirements of the EURO Ⅱ standard
出处
《汽车工程》
EI
CSCD
北大核心
2004年第2期136-138,156,共4页
Automotive Engineering
基金
上海市科学技术委员会资助项目 (0 3QF1 4 0 33)
