在汽油——空气混合气中,添加部分氢气,可扩大混合气的着火界限,提高火焰传播速度,加快稀薄混合气的燃烧速度,从而提高发动机的经济性,改善排放特性。本文探讨了汽油机燃用汽油——氢混合燃料提高经济性和改善排放特性的可能性,介绍了在单缸试验机及车用四缸发动机中,燃用混合燃料,提高热效率和经济性以及降低排放所获得的研究成果。 In the gasoline - air mixture, the addition of some hydrogen, can expand the mixture of the fire limits, improve flame propagation speed, accelerate the combustion speed of lean mixture, so as to improve the economy of the engine and improve the emission characteristics. In this paper, the possibility of improving the economy and improving the emission characteristics of a gasoline engine using gasoline-hydrogen hybrid fuel is discussed. In a single-cylinder test machine and a four-cylinder engine for a vehicle, a fuel mixture is used to improve thermal efficiency and economy as well as reduce Emissions from the research results obtained.