Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Development of an Automated Design System for Oil Pumps with Ellipse Lobe Profile

타원의 치형 형상을 갖는 로터 설계 자동화 시스템 개발

  • Jung, Sung-Yuen (Research Institute of Mechanical Technology, Pusan National Univ.) ;
  • Han, Seung-Moo (Dept. of Biomedical Engineering, Kyung Hee Univ.) ;
  • Kim, Chul (Research Institute of Mechanical Technology, Pusan National Univ.)
  • 정성윤 (부산대학교 기계기술연구원) ;
  • 한승무 (경희대학교 동서의료공학과) ;
  • 김철 (부산대학교 기계기술연구원)
  • Published : 2009.01.01
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Abstract

An internal lobe pump is suitable for oil hydraulics of machine tools, automotive engines, compressors, constructions and other various applications. In particular, the pump is an essential machine element of an automotive engine to feed lubricant oil. The subject of this paper is the theoretical analysis of internal lobe pump whose the main components are the rotors: usually the outer one is characterized by lobes with elliptical shape, while the inner rotor profile is determined as conjugate to the other. And the integrated system which is composed of three main modules has been developed through AutoLISP under AutoCAD circumstance. It generates new lobe profile and calculates automatically the flow rate and flow rate irregularity according to the lobe profile generated. Results obtained from the analysis enable the designer and manufacturer of oil pump to be more efficient in this field.

Keywords

References

  1. Colbourne, J. R., "Gear Shape and Theoretical Flow Rate in Internal Gear Pumps," Trans. of the CSME, Vol. 3, No. 4, pp. 215-223, 1975
  2. Saegusa, Y., Urashima, K., Sugimoto, M., Onoda, M. and Koiso, T., "Development of Oil-Pump Rotors with a Trochoidal Tooth Shape," SAE Paper, No. 840454, 1984
  3. Tsay, C. B. and Yu, C. Y., "Mathematical Model for the Profile of Gerotor Pumps," Trans. of the CSME, Vol. 10, No. 1, pp. 41-47, 1989
  4. Yu, C. Y. and Tsay, C. B., "The Mathematical Model of Gerotor Pump Applicable to Its Characteristic Study," Trans. of the CSME, Vol. 11, No. 4, pp. 385-391, 1990
  5. Lee, S. C., and Lee, S. N., "Design and Analysis of Gerotor for Hydraulic Motors," J. of the Korean Society of Tribologists and Lubrication Engineers, Vol. 11, No. 2, pp. 63-70, 1995
  6. Kim, C. H., Kim, D. I., Ahn, H. S. and Chong, T. H., "Analysis of Tooth Contact Stress of Gerotor Hydraulic Motors," J. of the Korean Society ofTribologists and Lubrication Engineers, Vol. 15, No. 2, pp. 164-170, 1999
  7. Kim, J. H. and Kim, C., "Development of an Integrated System of Automated Design of Gerotor Oil Pump," J. of the KSPE, Vol. 23, No. 2, pp. 88-96, 2006
  8. Kim, J. H., Kim, C. and Chang, Y. J. "Optimum Design on Lobe Shapes of Gerotor Oil Pump," J. of Mechanical Science and Technology, Vol. 20, No. 9, pp. 1390-1398, 2006 https://doi.org/10.1007/BF02915962
  9. Chang, Y. J., Kim, J. H., Jeon, C. H., Kim, C. and Jung, S. Y., "Development of an Integrated System for the Automated Design of a Gerotor Oil Pump," Journal of Mechanical Design, Vol. 129, Issue 10, pp.1099-1105, 2007 https://doi.org/10.1115/1.2757629