Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on the Flow Characteristics of a Swash-Plate Piston-Pump Inlet

사판식 피스톤 펌프 흡입구의 유동 특성에 관한 연구

  • Lee, Jeong-Sil (Department of Convergence Mechanical Engineering, Gyeongsang National University) ;
  • Jun, Cha-Soo (Department of Industrial and Systems Engineering, & Engineering Research Institute, Gyeongsang National University)
  • 이정실 (경상국립대학교 융합기계공학과) ;
  • 전차수 (경상국립대학교 산업시스템공학부, 공학연구원)
  • Received : 2021.08.03
  • Accepted : 2021.08.23
  • Published : 2021.10.30
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Abstract

In this study, a cavitation occurrence in a piston-pump inlet was investigated by simulating the pressure distribution, according to the inlet shape of a variable-displacement swash-plate piston pump that supplies high-pressure oil to control the hydraulic system of a marine engine. Two types of pump inlets with different shapes were cast into impression models, and the models were reverse-engineered by 3D scanning. Then, the hydraulic-pressure distribution was analyzed through finite-element analysis. The results of the analysis confirmed that cavitation occurs more easily in the inlet with a steeper slope during pump operation because the inlet pressure on the valve plate is lower than that of the other pump with a gentler inlet slope.

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References

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