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1.前言现在,正在开展汽车用氢发动机的燃料贮藏、供给、燃烧系统的多种研究.其中武藏工业大学以液态贮藏氢,在压缩上死点附近由液氢(LH_2)泵,将高压氢直接喷射到气缸内,目前已开发了热面点火方式.液氢法与其它氢贮藏法(例如高压气瓶或金属氢化物)相比,重量非常轻,为提高发动机功率需进行缸内氢喷射,具有用小型液氢泵得到高压氢的特点.做为汽车系统使用是非常合适的.并且,在压缩上死点附近喷射,采用热面点火方式除最大空气量为预混合方式的1.4倍外,还具有不发生回火和早燃等特点.
1. INTRODUCTION Nowadays, various studies are being carried out on fuel storage, supply and combustion systems for hydrogen engines for automobiles, in which Musashi holds liquid hydrogen in a liquid state and a liquid hydrogen (LH_2) pump near the top dead center of compression supplies high pressure hydrogen Direct injection into the cylinder has now developed a hot face ignition method.Hydrogen hydrogen method compared with other hydrogen storage methods (such as high pressure gas cylinders or metal hydride), the weight is very light, in order to improve engine power required for in-cylinder hydrogen injection , With a small liquid hydrogen pump to get high-pressure hydrogen. Used as a car system is very suitable. And, compression near the top dead center injection, the use of hot surface ignition method in addition to the maximum amount of air pre-mixed 1.4 times , But also does not occur tempering and premature combustion and so on.