内燃机工程2018，Vol.39Issue(1)：29-33,41,6.DOI:10.13949/j.cnki.nrjgc.2018.01.005
二次燃油喷射对自吸直喷汽油机低速性能影响的试验研究
Experimental Investigation into Influence of Split-Inj ection on Low-Speed Performance of Gasoline Direct Inj ection Engine
孙雪迎 1苏方旭 1梁呈兴1
作者信息
- 1. 北京汽车动力总成有限公司,北京101106
- 折叠
摘要
Abstract
The influence of split-inj ection on the low-speed performance of gasoline direct inj ection (GDI)engine was researched experimentally with full load at the operating point of 2 000 r/min using a series of inj ection modules,focusing on the effect of split-inj ection on power and fuel economy.And the mechanism of the effect of split inj ection on the engine performance at low speed was investigated by analyzing the changes of cylinder pressure,combustion and emissions.The result indicates the optimized split-inj ection generating the stratified stoichiometric mixture in the combustion chamber can accelerate the flame propagation,and improve the power and fuel economy by 5% and 6% respectively.关键词
自吸直喷汽油机/低速性能/二次喷射Key words
gasoline direct inj ection engine/low-speed performance/split-inj ection分类
能源科技引用本文复制引用
孙雪迎,苏方旭,梁呈兴..二次燃油喷射对自吸直喷汽油机低速性能影响的试验研究[J].内燃机工程,2018,39(1):29-33,41,6.
