小型风冷柴油机冷却系统万能风扇优化设计研究  

Optimization design on cooling system omnipotent fan of small air-cooled diesel engine

作　　者：王本亮[1] 唐楚峰[1] 唐维新[1] 

机构地区：[1]邵阳学院机械与能源工程系,湖南邵阳422004

出　　处：《湖南农机（学术版）》2010年第2期21-24,共4页Hunnan Agricultural Machinery

摘　　要：针对风冷柴油机热负荷高的现状,融合吸风冷却和吹风冷却的优点,研究开发了可安装不同形状尺寸叶片的万能风扇,并将3种不同形状尺寸的试验叶片与风冷柴油机原风扇叶片进行了对比试验,结果表明,优化后风扇风量提高了34%,静压提高了58%,冷却风流场分布更加趋于合理,能有效降低柴油机的热负荷,达到了预期的效果。Aim at the fact that the heat load of air-cooled diesel engine is very difiicult to reduce,by syneretizing the merits of suck air cooling manner and blow air one, the omnipotence fan which can install different shape and size vanes had been developed. On this basis, three kinds of vanes which have different shapes and sizes had been installed and tested on the omnipotence fan. Experiments had been operated with the original vanes and the optimized vanes. Through contrast,the conclusion that the optimized vanes can enhance the air flux by 34% ,advance the pressure by 58% can be drawn. Also,the distribution of cooling air flow field is much sounder than that of original vanes,and the heat load of the air cooled diesel engine can be reduced effectively.

关 键 词：风冷柴油机 冷却风扇 热负荷 

分 类 号：TK42[动力工程及工程热物理—动力机械及工程]