Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on Hydraulic Drawdown Test Model and Experimental Estimation of Desorption Rate Ratios of Fuel Filters

유압 저하시험 모델과 자동차 연료필터의 토설율 측정 실험 연구

  • Published : 2003.09.01
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Abstract

This study describes the mathematical equation of drawdown test model and introduces the experimental test apparatus and procedure to estimate the desorption rate ratio of a filter. The characteristics of a hydraulic filtration system of drawdown test were demonstrated by numerical simulation for various properties of filters and operation conditions. Experiments for three kinds of fuel filters were conducted according to the proposed test method. And the test results of desorption rate ratio were compared with those values anticipated in precedent multipass filtration tests. Experimental results revealed the validation of drawdown test method proposed in this study. Domestic fuel filter yielded high desorption rate ratio comparing with other foreign products, which means that the Beta ratio decreases a lot during the test. The results also showed that filtration system model could be developed including desorption rate ratio to estimate the variable Beta ratio in service life.

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References

  1. Fitch, E. C, Fluid Contamination Control, FES Inc., 1988
  2. Fitch, J. C. and Troyer, D., Learning Oil Analysis II, Noria Co., 1999
  3. Lee, J.-C, Kim, S.-H., 'An Experimental Investigation of Particle Impingement Erosion in Hydraulic Systems,' J. of KSAE, Vol. 10, No. 2, pp.117-122, 2002
  4. Lee, J.-C, 'A Theoretical Investigation of Roll-Off Cleanliness for Hydraulic System and Application to a Tractor,' J. of KSAE, Vol. 8, No. 5, pp.207-215, 2000
  5. Korea Pall LTD, Contamination Control and Filtration Technology, 1996
  6. ISO Standard 4572, Hydraulic Fluid Power-Filters-Multi-pass Method for Evaluating Filtration Performance, 1981
  7. ISO Standard 16889, Hydraulic Fluid Power Filters-Muti-pass Method for Evaluating Filtration Performance of a Filter Element, 1999
  8. ISO Standard 11171, Hydraulic Fluid Power-Calibration of Automatic Particle Counters for Liquids, 1999
  9. Fitch, E. C, Encyclopedia of Fluid Contamination, FES Inc., 1980
  10. Fitch, E. C, Proactive Maintenance for Mechanical Systems, FES Inc., 1992
  11. Fitch, E. C. and Hong, I. C, Hydraulic System Design for Service Assurance, BarDyne Inc., pp.182-195, 1999
  12. Lee, J.-C, Chang, J.-H., 'Performance Evaluation of an Automotive Fuel Filter by Multi-Pass Filtration Test,' J. KSAE, Vol. 10, No. 2, pp.219-226, 2002
  13. Lee, J.-C, 'A Study on Filtration System Model and Comparative Performance Tests of Automotive Fuel Filters,' J. KSPE, Vol.20, No. 3, pp.194-201, 2003
  14. Hong, I. T., 'The Beta Prime-A New Advanced Filtration Theory,' Contamination Control in Hydraulic Systems, Proc. Institution of Mechanical Engineering, C250/84, pp.83-88, 1984
  15. LaserNet Fines-C, Particle Counter and Particle Shape Classifier, Instruction Manual, Spectro Inc., 2001
  16. White Spirit, Mobil Product Data Sheet, Mobil Oil Autralia Pty Ltd., 1997
  17. ISO Standard 3722, Qualifying and Controlling Cleaning Methods for Fluid Sample Container, 1980