Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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A Lubrication Analysis between the Piston and Cylinder in Hydraulic Piston Pumps Part 1: The effect of piston shape

유압 피스톤 펌프의 피스톤과 실린더 사이의 윤활해석 (제1보:피스톤 형상에 의한 영향)

  • 박태조 (경상대학교 기계공학과, 항공기부품기술연구센터) ;
  • 전병수 (동명중공업)
  • Published : 1998.03.01
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Abstract

A numerical analysis is carried out to study the effect of piston shape on the lubrication characteristics between the cylinder and piston in hydraulic piston pumps. The results showed that the shape of piston affect significantly the pressure distribution in the clearance, the lateral force acting on the piston and leakage flow through the clearance. Partially tapered piston is more effective than any other piston shapes because it reduces the possibility of hydraulic locking and improves the volumetric efficiency of the pump.

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References

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