Transactions of The Korea Fluid Power Systems Society (유공압시스템학회논문집)
- Volume 4 Issue 3
- /
- Pages.1-6
- /
- 2007
- /
- 1738-3315(pISSN)
A Study on Lubrication Characteristic of Slipper Hydrostatic Bearing in Hydraulic Piston Pump
유압 피스톤 펌프의 슬리퍼 정압베어링에 관한 윤활특성 연구
- Jung, J.Y. ;
- Cho, I.S. ;
-
Baek, I.H.
;
-
Song, K.K.
;
- Oh, S.H. ;
- Jung, S.H.
- 정재연 (전북대학교 기계항공시스템공학부, 공학연구원 공업기술연구센터) ;
- 백일현 (전북대학교 대학원 정밀기계학과) ;
-
조인성
(전북대학교 기계항공시스템공학부)
;
-
송규근
(전북대학교 기계항공시스템공학부)
;
- 오석형 (군산대학교 기계공학부) ;
- 정석훈 (벽성대학 자동차과)
- Published : 2007.09.01
Abstract
The leakage generated from the clearance between the cylinder bore and the piston is one of the most serious problems in the hydraulic piston pump, and it even results in terrible decrease of the volume efficiency at a great velocity and high pressure. In this paper, the lubrication characteristic of the hydrostatic slipper bearing equipped in the hydraulic piston pump has been worked out by experimentation with three model bearings of different shape. Preparatory to this, not only the three models of piston-slipper were designed, but the corresponding experimental apparatus were also manufactured. As a result, it was verified that, according to the supply pressure, the hydrostatic bearing part of the slipper is severely affected by the pocket pressure, land pressure, oil film thickness, and leakage flow.
Keywords