进气道偏置对四气门柴油机进气门口三维流场的影响

吉林大学学报(工学版) ›› 2002, Vol. ›› Issue (1): 73-78.

进气道偏置对四气门柴油机进气门口三维流场的影响

吴志军¹, 李君², 孙济美²

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, 吉林, 长春, 130025

收稿日期:2000-03-15 出版日期:2002-01-25
基金资助:
国家攀髓计划(A)资助项目

The Influence of Intake-valve Port Offset on Three-dimensional Flow Field in Four-valve Diesel Engine

WU Zhi-jun¹, LI Jun², SUN Ji-mei²

1. College of Power and Engrgy Engineering, Shanghai Jiaotong University, Shanghai 200030, China;
2. College of Automobile Engineering, Jilin University, Changchun 130025, China

Received:2000-03-15 Online:2002-01-25

摘要/Abstract

摘要： 研制了四气门柴油机单独进气道、单气道中置缸盖及气门口三维流速测量装置。在稳流气道试验台上,利用热线风速仪测量了不同气道布置方案下的进气门出口三维流场,揭示了进气道偏置对四气门柴油机进气门口三维流场影响的变化规律。气道的偏置使气门口切向速度大小发生了变化,速度分布变化很大,这种影响随升程的增加而增大。

关键词: 四气门柴油机, 气道偏置, 气门口流场, 稳流试验

Abstract: Four valve diesel engine experimental center is designed and cylinder head for single port,single ports,and flow velocity measuring device around the intake valve flow field are installed in this paper.With these devices,experimental study on the stationary flow test bench is carried out.The law of intake valve three dimensional flow field by the influence of port offset is explored.Port offset leads to obvious difference and fluctuation of tangential velocity in the port exit.The influence is greater as the valve lift is higher.

Key words: four valve diesel engine, port offset, valve exit flow field, steady flow test

中图分类号:

U464

吴志军, 李君, 孙济美. 进气道偏置对四气门柴油机进气门口三维流场的影响[J]. 吉林大学学报(工学版), 2002, (1): 73-78.

WU Zhi-jun, LI Jun, SUN Ji-mei. The Influence of Intake-valve Port Offset on Three-dimensional Flow Field in Four-valve Diesel Engine[J]. 吉林大学学报(工学版), 2002, (1): 73-78.

参考文献

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