超高能点火对重型点燃式甲醇发动机性能、排放影响的试验研究
Experimental study on the influence of super high energy ignition on the performance and emission of heavy-duty ignited methanol engine
对于火花点燃式内燃机，提高点火能量可以提高燃烧速度，扩展稀薄燃烧运行极限。基于一台点燃式进气道喷射V型8缸甲醇机，分析了超高能点火对1000r/min和1500r/min两种转速、不同负荷下性能和排放特性的差异。结果表明：不同发动机转速和负荷下，超高能点火对甲醇机性能与排放的改善效果不同。在同等转速下，超高能点火在小负荷工况时能有效提高燃油经济性，但由于受缸内充量密度变化的影响，点火能量增加对燃油经济性的改善作用随着负荷的增大而减弱。燃烧分析表明…查看全部>>
For spark-ignited internal combustion engines, increasing the ignition energy can increase the combustion speed and extend the operating limit of lean combustion. Based on a ignition intake port injection V-shaped 8-cylinder methanol machine, the differences in performance and emission characteristics of ultra-high energy ignition pairs of 1000r/min and 1500r/min and under different loads were analyzed. The results show that under different engine speeds and…查看全部>>
谢纯阳;田华;王永健;隆武强;
TK421.2
super high energy ignition methanol engine ignition energy combustion emission
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