Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Discharge Pressure Ripple Characteristics of the Pressure Unbalanced Vane Pump

압력 비평형형 유압 베인 펌프의 토출 압력 맥동 특성 연구

  • Jang, Joo-Sup (Department of Mechanical & Automotive Engineering, Kyungwon Univ.)
  • 장주섭 (경원대학교 기계자동차공학과)
  • Published : 2009.04.01
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Abstract

This paper reports on the theoretical and experimental study of the pressure ripples in a pressure unbalanced type vane pump which have widespread use in industry. Because they can infinitely vary the volume of the fluid pumped in the system by a control. Pressure ripples occur due to the flow ripples induced by geometry of side plate, leakage flow, reverse flow from the outlet volume produced by pressure difference between pumping chamber and outlet volume when the pumping chamber connected with the outlet volume. In this paper, we measured the pressure variation of a pumping chamber, reaction force on a cam ring, the mathematical model for analyzing the pressure ripples which included vane detachment and fluid inertia effects in notch area has been presented, and was applied to predict the level and the wave form of the pressure ripples according to operating conditions.

Keywords

References

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