汽油机缸内直喷稀薄燃烧技术(GDI)

Gasoline Engine Direct Injection Lean-burn Technique

在对GDI燃油喷射系统和燃烧系统等关键技术的介绍基础上,通过对GDI缸内流场的结构、在不同负荷下混合气分区域控制模式分析,阐明缸内直喷汽油机的工作过程、燃油经济性及排放特点。

On the basis of introduction on the key technique of fuel injection system and combustion system in GDI engines, this paper analyses the fluid field structure of GDI engine cylinder, the mixture control mode in separate district under different engine load. Meanwhile, it also illustrates the combustion process, fuel oil economy and emission feature of GDI engines.