1.前言不仅仅是在美国,而且在全世界凡与内燃机有关的人们均面临着一个必须着手解决的大问题是,在代用燃料或新型发动机研制出以前(至少要在1985年以后),必须对现有的内燃机进行改进以节省能源。美国的石油生产量与总消费量的比倒,1971年是74%,1974年是63%,1985年预计下降为50%。为此,大力开展了从煤或页母岩中提取蒸溜燃料以及使用甲醇、氢气等作为燃料的研究工作。但是,估计这些燃料至少在20年内还不能工业化和普及化。其次,更长远地考虑还有利用太阳能和原子能使海水电解而获得氢气,但是,它的实用化至少要在2000年以 1. Foreword It is not only in the United States, but throughout the world that all people related to internal combustion engines are faced with a big problem that must be addressed is that before (at least after 1985) the alternative fuel or new engine was developed, it must Improve the existing internal combustion engine to save energy. The ratio of oil production to total consumption in the United States was down from 74% in 1971, 63% in 1974 and 50% in 1985. To this end, vigorously carry out the extraction of steamed coal from the coal or the parent rock as well as the use of methanol, hydrogen, etc. as fuel research. However, it is estimated that these fuels will not be able to be industrialized and popularized for at least 20 years. Second, considering the longer term, there is also the use of solar energy and atomic energy to electrolyze the seawater to obtain hydrogen, but its practical application should be at least 2000