吉林大学学报(工学版) ›› 2001, Vol. ›› Issue (1): 71-74.

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A Study on Experimental Measuring Methods of Port in Diesel Engine

WU Zhi-jun1, LI Jun2, SUN Ji-mei2   

  1. 1. College of Power and Energy Engineering, Shanghai Jiaotong University, Shanghai 200030, China;
    2. College of Automobile Engineering, Jilin University, Nanling Campus, Changchun 130025, China
  • Received:2000-03-22 Online:2001-01-25

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Abstract: In order to study the experimental measuring methods of port,three kinds of swirl meters and experimental methods are used on the stationary flow test bench.This paper analyses the laws of in cylinder swirl measuring by the influence of style of swirl meter and measuring position.The measuring value of momentum swirl meter does not fluctuate greatly,and is always higher than that of paddle wheel swirl meter.The measuring value of paddle wheel swirl meter fluctuates greatly according to the movement of measuring position.Moreover,the fluctuation extension of rectangle vane is greater than that of dumbbell vane.Three kinds of experimental methods are compared.Non-dimensional swirl value measured with ricardo experimental method and AVL experimental method is always lower than that with angular momentum method within the full range of valve lift.In addition,the difference is greater while the lift is higher.Swirl value measured with Ricardo experimental method is higher than that with AVL experimental method.

Key words: diesel engine, port, steady flow test

CLC Number: 

  • U464.172
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