摘要
建立了高压共轨试验测控系统,确定了高压共轨柴油机起动特性评价指标,通过试验研究了不同共轨油压对高压共轨柴油机起动特性的影响。结果表明:在其它控制参数不变的前提下,柴油机起动过程的轨压是一个变化的过程,随着共轨油压的变化存在一个轨压值使起动性能最佳,过大或者过小的共轨油压都会使起动时间增加,HC排放增多。
A test and control system of the high pressure common rail was built and the evaluating standard of the start-up characteristic of the high pressure common rail diesel engine was established. The in fluence of different common rail pressures on start performance was studied and analyzed. The test results show that rail pressure is changable in start process when the other control parameters are kept invariable. There is an optimum rail pressure resulting in the best start performance. Higher or lower rail pressure will result in longer start time and higher HC emission.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2008年第5期11-14,共4页
Chinese Internal Combustion Engine Engineering
基金
“十五”国家科技攻关计划项目(2003BA408B04)
关键词
内燃机
高压共轨柴油饥
共轨油压
起动特性
IC engine
high-pressure common rail diesel engine
common railpressure
start-up characteristic
