摘要
提出了采用单向阀利用进排气压力波动的废气再循环 (EGR)系统 .应用一维非定常流动模型对该系统进行了模拟 ,并以此计算比较了该单向阀 EGR系统的不同方案 ,分析了有无 EGR冷却器、EGR冷却器与单向阀的相对位置、EGR管布置形式等对系统 EGR率、泵气损失等的影响 .
A check valve exhaust gas recirculation (EGR) system, which makes effective use of intake and exhaust pressure waves, was proposed for turbocharged diesel engines. The simulation of EGR system was carried out with one dimensional unsteady flow model. The effects of various factors on EGR rate and pumping loss of the check valve EGR system, such as with or without EGR cooler, relative position of the EGR cooler and check valve, arrangements of EGR pipes, were discussed.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2001年第5期750-753,共4页
Journal of Shanghai Jiaotong University
基金
汽车安全与节能国家重点实验室开放基金资助项目( 39915 0 0 7)
关键词
废气再循环
压力波
单向阀
涡轮增压柴油机
排气管
Diesel engines
Exhaust systems (engine)
Mathematical models
Pressure effects
Valves (mechanical)
