甲醇喷射定时对甲醇柴油双燃料压燃式发动机性能的影响  

Effect of methanol injection timing on methanol-diesel dual-fuel compression ignition engine performance

作　　者：方显忠[1] 李国良[1] 阎淑芳[1] 刘巽俊[1] 

机构地区：[1]吉林大学汽车工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2008年第S1期80-84,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划项目(20020636).

摘　　要：将甲醇作为主燃料,用柴油作为点火燃料,研究了不同甲醇喷射定时对压燃式发动机性能的影响。结果表明:引燃柴油在上止点前21℃A喷射条件下,在上止点前23℃A喷射甲醇时发动机的经济性最佳,缸内的统计最大压力在小负荷时随着甲醇喷射定时提前而降低,在大负荷时随着甲醇喷射定时提前而提高。双燃料发动机的最大压力标准方差随着甲醇喷射定时提前而增大,在上止点前26℃A喷射甲醇时发动机的动力性最佳,气缸内压力波动随甲醇喷射定时提前而变大,当在上止点前29℃A喷射甲醇时点火柴油不能把甲醇燃料可靠点燃。Using methanol as the main fuel and diesel as the ignition fuel,the effect of the methanol injection timing on the performance of a methanol-diesel dual-fuel compression ignition engine was studied experimentally.Test results show that when the injection timing of the ignition diesel keeps constant at 21℃A BTDC,the engine operates smoothly and economically with the injection timing of the methanol at 23℃A BTDC.Maximum statistical combustion pressure of dual fuel engine decreases with the advance of the meth...

关 键 词：动力机械工程 压燃式发动机 双喷射系统 双燃料发动机 甲醇燃料 喷射定时 

分 类 号：TK46[动力工程及工程热物理—动力机械及工程]