王琪； 陈明星； 李佳 

长安大学汽车学院

    摘要：对M15、M85两种具有代表性的甲醇汽油在M-TEC发动机上进行了动力性和经济性的试验,分别绘制了外特性动力曲线和3000r/min下的负荷特性曲线,并对其原因进行分析。试验结果表明,使用甲醇汽油有利于发动机动力性和经济性的提升。使用M15甲醇汽油时,输出功率提高了大约5%～7%,能耗降低了大约0.7%;使用M85甲醇汽油时,输出功率提高了8%～10%,能耗降低了大约14.5%。两种燃料对动力性和经济性的提升在不同转速下也不相同,在中小负荷下动力性提升最为明显,中等负荷下经济性提升最显著。 

    关键字：甲醇汽油； 动力性； 经济性； 试验研究

    Abstract：The paper gives some research and analysis on the M-TEC engine for its dynamic and economy performance by running M15 and M85 methanol gasoline of two representative fuels and draws the external characteristic power curve and the load curve at the speed of 3000r/m.The test results show that the dynamic and economy performances are improved after using the methanol gasoline.For running M15 gasoline,the engine power output increases from 5%～7%,but fuel consumption reduces appropriately to 0.7%.

For M85 methanol gasoline,the engine power output increases from 8%～10%,but fuel 

consumption reduces appropriately to 14.5%.Engines also show different

dynamic and economy performance as running different fuels.                                        

Experimental Research

      Keyword：Methanol Gasoline;Dynamic Performance;Economy Performance;

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