汽油发动机瞬态工况燃烧规律的试验研究  

Experimental Study on Combustion in Cylinder about Gasoline Engine under Transient Operating Conditions

作　　者：马玺[1,2] 刘义佳 袁军亮 胡晓[1,2] 关松[1,2] 鲍春来[1,2] 

机构地区：[1]长城汽车股份有限公司技术中心,河北保定071000 [2]河北省汽车工程技术研究中心

出　　处：《小型内燃机与车辆技术》2015年第5期17-20,43,共5页Small Internal Combustion Engine and Vehicle Technique

摘　　要：对于车用发动机而言,其运行工况具有稳态与瞬态之分,且变化规律大不相同。一般而言,瞬态工况分为转速和扭矩均随时间变化、定转速变扭矩工况、定扭矩变转速工况、起动工况、停机工况,其中定转速变扭矩与定扭矩变转速工况具有一定的代表性。通过试验研究分析汽油发动机在定转速变扭矩工况下各燃烧参数的变化情况,从而进一步揭示其燃烧规律,为优化发动机的瞬态性能提供理论依据。For automotive engine, the working conditions include steady condition and transient condition, and they are different. In general, the transient condition is divided into speed and torque changed over time, the working condition of constant speed and varying torque, constant torque and varying speed condition, working condition of starting, stopping conditions. The working condition of constant speed and varying torque, constant torque and varying speed condition have certain representativeness. Through the experimental study on the change of the combustion parameters of gasoline engine under constant speed varying torque conditions, the burning law is further revealed. This provides theoretical basis for optimization of the engine＇s transient performance.

关 键 词：汽油机 瞬态工况 燃烧 性能 

分 类 号：TK411.26[动力工程及工程热物理—动力机械及工程]