EGR对电喷LPG发动机快速稀薄燃烧的影响  

Effects of EGR on Rapid Lean-Burning Process of Electronic Controlled LPG Injection SI Engine

作　　者：刘娜[1] 胡春明[1] 李伟[1] 宋玺娟[1] 

机构地区：[1]天津大学天津内燃机研究所,天津300072

出　　处：《小型内燃机与摩托车》2009年第3期85-87,共3页Small Internal Combustion Engine and Motorcycle

基　　金：天津市应用基础研究重点项目(06YFJZJC01500);天津市科技支撑计划重点项目(08ZCKFGX02700)资助

摘　　要：文章介绍了废气再循环(EGR)对电喷LPG发动机快速稀薄燃烧的影响。研究结果表明,EGR的应用,对稀薄燃烧稀限及发动机燃烧特性都有较大的影响。本研究开发的基于高能双火花塞点火的快速燃烧系统可以加快LPG燃气的燃烧速率,有效地改善引入EGR的LPG发动机的快速稀燃过程。The effects of Exhaust Gas Recirculation （EGR） on the rapid lean-burning of LPG engines with EFI is introduced in this paper. Test data shows that LPG lean-burning engine with EGR would have a great influence on the limit of lean-burning and engine combustion characteristics. Meanwhile, the dual-spark plug -based rapid burning system developed in the study could increase the combustion heat release of LPG mixture, and improve the rapid burning process of LPG engine with EGR.

关 键 词：EGR 快速稀薄燃烧 双火花塞 电喷LPG发动机 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]