甲醇灵活混合燃料系统研究  

Research on Flexible Mixing System of Methanol Fuel

作　　者：齐洪元[1] 严治国[1] 倪计民[1] 杨友文[2] 

机构地区：[1]同济大学汽车学院,上海201804 [2]上海汽车集团股份有限公司技术中心,上海201804

出　　处：《内燃机工程》2014年第5期82-87,共6页Chinese Internal Combustion Engine Engineering

摘　　要：提出新型灵活混合燃料系统,采用甲醇和汽油双油路独立设计,结合城市循环工况(NEDC)的仿真分析,建立了甲醇和汽油的灵活燃料特性场,实现两种燃料根据工况的灵活配比。新方案在解决甲醇燃料的腐蚀、溶胀等技术问题的同时,还可以解决甲醇燃料冷起动困难、非常规排放高等问题,实现发动机的工况优化。研究结果表明:新方案可以降低HC、CO和NOx等常规排放物排放量,非常规排放物甲醛的排放仅为工信部排放限值的17%。The flexible fuel mixing system adopted independent dual fuel pipes for methanol and gasoline, and achieved a flexible proportion of blended methanol gasoline under all operation conditions by simulative analysis of the NEDC cycles and establishment of flexible mixture characteristics of the two fuels. This new system can not only solve the problems of corrosion and swelling, also the issues of cold start and unconventional emissions, thus achieving optimization of engine operation conditions. The tests show that the system can reduce the emissions of HC, CO and NOx and at the same time formaldehyde emissions are only 17% of the national emission limits.

关 键 词：内燃机 发动机 甲醇 混合 灵活燃料 

分 类 号：TK407.9[动力工程及工程热物理—动力机械及工程]