Journal of Shanghai Jiaotong University ›› 2011, Vol. 45 ›› Issue (04): 481-485.

• Communication and Transportation • Previous Articles     Next Articles

Modeling and Simulation on Static Characteristics of Pressure Reducing Valve for Ship’s Diesel Engine

WEN  Xue-Dong, HE  Guo, XU  Bai-Hui   

  1. (1. School of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033,China;2. Shanghai Naval Guarantee Base, Shanghai 200083, China)
  • Online:2011-04-29 Published:2011-04-29

Abstract: A kind of gas pressure reducing valve (PRV) fitted by towdirection for a marine diesel engine was developed. The valve disc is served as a pressure feedback unit and the delivery pressure can be adjusted continuously from 1.3 MPa to 1.5 MPa. A pressure reducing valve static characteristics mathematical model was developed by analyzing the nonlinear factors——frictional and fluid dynamic forces, and the influences of several structure parameters on static behavior of the valve were also given. Equipment for testing the static character of the valve was designed and the several groups of operation condition were tested. The results of the simulation indicate that the model can forecast the static performances, and the valve can meet the needs completely.

Key words: ship, diesel engine, pressure reducing valve (PRV), static characteristics, nonlinear factors

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