摘要
通过对6190直列燃气发动机进行缸内压力、瞬时转速及同步信号等的测量,对比各缸做功效果,分析各缸进气不均匀性对发动机造成的影响。试验结果表明,在小负荷时,循环变动率大,随着负荷的增加,循环变动率有所改善,从6190发动机p-V曲线上可以看出各缸做功并不均匀。最后提出改进优化建议。
The cylinder pressure, instant speed and synchronous signal of 6190 direct natural gas engine were measured, the working among all cylinders was compared and the influence of intake unevenness on engine was analyzed. The results indicate that the cycle-to-cycle combustion variation （CCV） is huge at low loads and is improved with the increase of load. According to the p-V curve of 6190 engine, each cylinder does work in uneven way. Finally, the proposal for improvement and optimization is put forward.
出处
《车用发动机》
北大核心
2009年第2期72-74,88,共4页
Vehicle Engine
关键词
内燃机
天然气发动机
进气
不均匀
做功
internal combustion engine
natural gas engine
intake
unevenness
work
