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A Characteristic Study of Efficiency in Radial Piston Pump

레이디얼 피스톤 펌프의 효율 특성 연구

  • 장윤석 (연세대학교 대학원 기계공학과) ;
  • 천세민 (삼성 엔지니어링) ;
  • 임윤철 (연세대학교 기계전자공학부)
  • Published : 2000.08.01

Abstract

Pump which is the fundamental device in the hydraulic system affects on overall system performance to a great deal. Such problems as leakage and solid friction loss become important in field applications, especially for the case of operation under high pressure and at high speed. So the research on this kind of subjects is necessary to improve the performance of hydraulic devices. A high pressure radial piston pump is analyzed here, which has a stationary cylinder block. It pumps hydraulic fluid by letting camring push a piston in a cylinder. Fluid leaks between the piston and cylinder so that it deteriorates the pump efficiency. Furthermore, the piston happens to touch the cylinder wall to increase the friction loss and wear. In this research, by means of FDA, volumetric, mechanical and overall efficiencies are observed by varying several design parameters and operation conditions. Design values or their trends are presented to improve these effciencies.

Keywords

References

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