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800252 柴油发动机中炭粒的形成和氧化 为从根本上了解柴油机燃烧过程中炭粒的形成和燃尽的过程,测定了直排柴油机中排气烟度与燃烧期长短的关系。文中提出并讨论了不同的喷射时刻,发动机转速及负荷对燃烧期长短的影响。在连续的开焰喷束这一不太复杂的条件下进行了燃烧试验,并从火焰的各个部位进行炭粒取样。通过一种特殊的方法,得到了有关炭粒形成机理的数据,而炭粒氧化机理的数据却不能从试验中得到。文中讨论
800252 The formation and oxidation of carbon pellets in a diesel engine are the fundamental processes for the formation and burnout of carbon particles during the combustion of a diesel engine. The relationship between the exhaust smoke and the combustion duration in a diesel engine is measured. In this paper, the influence of different injection timing, engine speed and load on the combustion duration is proposed and discussed. Burning tests were carried out in a less complicated condition with a continuous open flame jet and carbon particle sampling was performed from all parts of the flame. Through a special method, data on the formation mechanism of carbon particles have been obtained, but the data on the oxidation mechanism of carbon particles can not be obtained from the experiment. Discussion in the article