某柴油机放热过程分析研究  

An Analysis Study on Heat Release Process of Diesel Engine

作　　者：赵春生[1] 刘艳利[1] 丁技峰[1] 

机构地区：[1]中国北方发动机研究所,山西大同037036

出　　处：《小型内燃机与摩托车》2013年第1期15-18,共4页Small Internal Combustion Engine and Motorcycle

摘　　要：柴油机的放热过程影响着循环效率、最高燃烧压力和压力升高率,从而决定了柴油机的动力性和经济性。本文针对某车用柴油机,在现有供油系统和进气系统的条件下,通过分析不同工况、不同供油提前角的缸内放热规律,确定了不同工况的最佳提前角,其结论对改善该柴油机的动力性和经济性有着积极意义。The heat release process of diesel engine impacts on the circle efficiency, the maximal combustion pressure and the pressure rise rate, which determines the dynamic and economics performance. So this paper analyzes in-cylinder heat release rate on different fuel providing advanced angle on different operational situa- tions with the fuel supply and air intake system of diesel engine not changed, and defines the optimum fuel supply advanced angle on different operational situations. The results have positive sense to improve the dy- namic and economics performance of the diesel engine.

关 键 词：有效热效率 放热规律 供油提前角 最高燃烧压力 

分 类 号：TK421.26[动力工程及工程热物理—动力机械及工程]