使用因素及压缩比对沼气内燃机性能影响的研究

A STUDY ON THE EFFECT OF COMPRESSION RATIO,INJECTION TIMING AND METHANE CONCENTRATION ON SMALL METHANE GAS ENGINE PERFORMANCE

探讨了沼气作为农用内燃机替代燃料的适应性，分析了压缩比、点火提前角及甲烷含量对内燃机工作性能的影响，得到了甲烷含量为６５％时的最佳结构参数，压缩比为１６，最佳点火提前角为３０°，这对于自然发酵的沼气（甲烷含量通常在６０～８０％之间），也是相适应的．

This paper gives a deep probe into the application of methane gas as alternativefuel for a farm engine and studis the effect of compression ratio,injection timing and methaneconcentration on small methane gas engine,and obtains the best compression ratio and thebest injection timing.