中南大学学报（自然科学版）Issue(2)：667-675,9.DOI:10.11817/j.issn.1672-7207.2016.02.043
可调靴形喷油规律的燃烧排放性能仿真研究
Simulation of combustion and emission characteristics of adjustable boot-shaped fuel injection law
摘要
Abstract
The adjustable boot-shaped fuel injection law was put forward for improving the combustion and emission characteristics of high power diesel engine. The super-high pressure common rail system simulation model was set up by software Amesim which is composed of pressure-amplified pump model, common-rail model and fuel injector model. Realization method of adjustable boot-shaped fuel injection law were investigated. Effects of boot-shaped fuel injection law on combustion and emission characteristic was analyzed. The results show that the super-high pressure common-rail System can realize the adjustable boot-shaped fuel injection law by controlling the time of solenoid valve in pressure-amplified pump. The boot-shaped fuel injection law shows greater superiority and potential than tradition rectangle-shaped fuel injection law on combustion and emission characteristics. Increasing the injection timing of boot-shaped fuel injection law properly can improve combustion. The boot-shaped fuel injection law with more pilot injection fuel and larger pilot injection advance angle can improve the level of mixing of fuel and air in the cylinder, and has a greater effect on emission.关键词
柴油机/可调靴形喷油规律/预喷/燃烧Key words
diesel engine/adjustable boot-shaped fuel injection laws/pilot injection/combustion分类
能源科技引用本文复制引用
刘琦,欧阳光耀,杨昆,常远..可调靴形喷油规律的燃烧排放性能仿真研究[J].中南大学学报（自然科学版）,2016,(2):667-675,9.基金项目
国家自然科学基金资助项目(51379212)(Project (51379212) supported by the National Natural Science Foundation of China) （51379212）
