유압시스템 롤-오프 청정도의 이론적 고찰 및 트랙터에의 응용

A Theoretical Investigation of Roll-Off Cleanliness for Hydraulic System and Application to a Tractor

  • 이재천 (회원, 계명대학교 자동차 공학부)
  • 발행 : 2000.09.01

초록

This study theoretically investigated the roll-off cleanliness operation to eliminate the built-in contaminants which are primarily the result of manufacturing and assembly procedures first. A rigorous analytical examination of the cleaning process associated with hydraulic systems was performed by developing the general filtration process equations. The sloughing process by which built-in contaminant is entrained in the system fluid was examined during the development of a general analytical expression for sloughing rate. This sloughing rate expression in conjunction with the filtration process equations have lead to a relationship rate expression in conjunction with the filtration process equations have lead to a relationship which describes the flushing and clean-up operation for the hydraulic systems. The effects of the primary roll-off cleanliness factors was discussed and illustrated on the figures. Then, the analytical results was shown to be usefully applied into the design of roll-off flushing equipment for the hydraulic system of a tractor.

키워드

참고문헌

  1. ANSI Standard B93.54M Hydrauic Fluid Power-Assemibled Systems-Method for Achiving Roll-Off Cleanliness (NFPA/T2. 9.8-1979)
  2. The FRH Journal, The Fluid Power Research Center v.4 no.1 Hydrauic system flushing F. D. Norvelle
  3. Hydraulic Fluid Power-Filters-Multipass Method for Evaluation Ferformance
  4. Fluid Contamination Control E. C. Fitch
  5. 29th National Conference on Fluid Power A realistic roll-off cleanliness procedure for fluid power systems J. M. Karhnak
  6. SAE Technical Paper No. 730796 Practical and fundamental descriptions for fluid power filters E. C. Fitch;R. K. Tessmann
  7. Hydraulic System Design for Service Assurance E. C. Fitch;I. T. Hong
  8. Basic Fluid Power Research Program Annual Report no.6 OSU containation control theorems R. K. Tessmann
  9. ISO Solid Contamiant Code
  10. Learning Oil Analysis J. C. Fitch
  11. Hydraulic Component Design and Selection E. C. Fitch;I. T. Hong