Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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System Modeling of a Bi-directional Outlet Variable Swash Plate Type Axial Piston Pump with Two EPPR Valves

두 개의 EPPR 밸브가 적용된 정/역 가변형 사판식 액셜 피스톤 펌프 시스템 모델링

  • Kim, Yong-Gil (DAIHO HYDRAULIC Co., Ltd.) ;
  • Kim, Soo-Tae (Department of Mechanical Engineering, Changwon National University) ;
  • Ham, Young-Bog (Energy Systems Research Division, Korea Institute of Machinery & Materials(KIMM)) ;
  • Yun, So-Nam (Energy Systems Research Division, Korea Institute of Machinery & Materials(KIMM)) ;
  • Son, Ho-Yeon (DAIHO HYDRAULIC Co., Ltd.)
  • Received : 2020.01.02
  • Accepted : 2020.01.15
  • Published : 2020.03.01
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Abstract

This study addresses the modeling of a bi-directional outlet variable swash plate type axial piston pump with two EPPR valves and an analysis of the response characteristics to the angle control of that pump. In this paper, the combination of the EPPR valve and double rod type piston is referred to as the EPPR regulator. The EPPR regulator is compact and inexpensive, and has good responsiveness. Under actual pump operating conditions, because of the various external conditions of the pump, inertia is applied to the swash plate, generating the tilting torque. Also, the tilting torque can delay or shorten the response characteristics of the regulator. So we validated them through the analysis using SimulationX and these results allow users to freely integrate the EPPR regulator into the desired system.

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References

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