论文部分内容阅读
据《汽车公报》报道,近几年随着技术的不断进步,柴油机得到很大的发展,增压发动机的升功率现在已达50马力/升,正常进气柴油机的升功率为37马力/升,柴油机还有热力学效率高、排放很少的废气等优点。柴油发动机的工作原理要求其点火通过在燃烧室或预燃室里压缩混合气来实现,喷射压力可达400巴,燃油经过喷油嘴使之雾化成细小粒状以便进入燃烧室燃烧,柴油机工作时空气过量(燃油、空气质量比全负荷时为0.15～0.80),理论优点是油耗比相应汽油机低15～20％。
According to the “Automobile Bulletin”, in recent years, with the continuous improvement of technology, the diesel engine has been greatly developed. The boosted power of the supercharged engine has now reached 50 hp / h. The normal intake diesel engine has a horsepower of 37 hp / , Diesel and thermodynamic efficiency, emissions of small emissions and so on. The working principle of a diesel engine requires that its ignition be achieved by compressing the mixture in the combustion chamber or pre-combustion chamber at injection pressures of up to 400 bar, through which the fuel atomizes into fine particles for combustion into the combustion chamber and when the diesel engine is operating Air excess (fuel, air quality than the full load of 0.15 ~ 0.80), the theoretical advantage is that the fuel consumption lower than the corresponding gasoline 15 ~ 20%.