This paper reviews the effect of induction Swirl on mixture formation and engine performance of DI diesel engine.
本文介绍了进气涡流对直喷式柴油机混合气形成的作用和它对整机性能的影响。
The results show that the secondary atomization of fuel brought by oriented arc can improve mixture formation and combustion.
结果表明，在导向圆弧的作用下产生的燃油二次雾化，大大加速了混合气的形成和燃烧。
The combustion process and emission characteristics in diesel engine are mainly depended on the mixture formation in cylinder.
柴油机的燃烧过程和排放特性，主要取决于柴油机气缸内混合气的形成。
The gas flow and fuel spray status in combustion chamber are two important factors which affect the mixture formation in diesel cylinder.
而气缸或燃烧室内的气流运动和燃料的喷雾特性，是影响柴油机混合气形成和燃烧过程的两大重要因素。
Horizontal swirl, axial tumble and the distribution of turbulent kinetic energy are very important for fuel atomization and mixture formation.
水平方向的涡流、轴线方向的滚流以及湍动能的这种分布特性都有利于燃油的雾化以及与空气的混合。
At low temperatures, mixture formation is poor due to the large fuel droplets concerned, and due to the inefficient mixing of the fuel with the air drawn in by the engine.
低温时，燃油黏度和密度增大，且发动机所吸入的空气无法与燃油充分混合，从而影响油气混和气的形成。
In addition, the dual-component spray model was built up to simulate the spray and mixture formation of ethanol-diesel blend fuel in the engine cylinder before the ignition.
另外，建立了双组分喷雾模型并模拟了气缸内乙醇柴油混合燃料的喷雾过程与混合气分布情况。
Temperature in fuel spray field has a determinant influence on fuel evaporating, mixture formation, ignition and flame spreading and is very important for numerical simulating.
喷雾场的温度对燃油的蒸发，混合气的形成，着火以及火焰传播有着决定性影响。
According to the features of the mixture formation in natural gas engine, natural gas engine can be classified as two types: premixed combustion type and heterogeneous diffusive combustion type.
本文根据天然气发动机混合气的形成特点，把天然气发动机分为预混合燃烧型和非均质扩散燃烧型，并分析了这两种天然气发动机的技术特点、燃烧特点与排放等性能。
According to the features of the mixture formation in natural gas engine, natural gas engine can be classified as two types: premixed combustion type and heterogeneous diffusive combustion type.
本文根据天然气发动机混合气的形成特点，把天然气发动机分为预混合燃烧型和非均质扩散燃烧型，并分析了这两种天然气发动机的技术特点、燃烧特点与排放等性能。
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