四气门柴油机两进气道的相互干扰——对缸内涡流的影响  

Effects of Disturbance between Two Intake-Ports on In-Cylinder Swirl in Four-Valve Diesel Engine

作　　者：吴志军[1] 孙济美[2] 黄震[1] 

机构地区：[1]上海交通大学动力与能源工程学院,上海200030 [2]吉林大学汽车工程学院,长春130025

出　　处：《上海交通大学学报》2001年第5期758-762,共5页Journal of Shanghai Jiaotong University

基　　金：国家"攀登计划"( A)资助项目 ( 85 -0 6 -1-3)

摘　　要：利用测得的四气门柴油机气门口三维流场 ,分析了进气门出口流场产生的缸内空气动量矩流率 ,揭示了四气门柴油机两进气道的相互干扰对缸内空气动量矩流率影响的变化规律 .四气门柴油机两进气道相互干扰 ,对缸内空气动量矩流率产生较大影响 ,相互干扰的程度取决于各气道的自身结构。Through the analysis of the intake-valve exit three-dimensional flow field and the angular momentum flux of four-valve diesel engine under different plans, the law of in-cylinder air angular momentum flux by the influence of the disturbance between two intake-ports was discovered. The two intake ports make disturbance for one another, and the disturbance has great effects on the in-cylinder air angular momentum flux. Each port's structure, the relative position between two intake ports and the valve lift decides the degree of disturbance.

关 键 词：四气门柴油机 进气道 相互干扰 动量矩流率 

分 类 号：TK421.3[动力工程及工程热物理—动力机械及工程]