Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Development of an Automated Integrated Design System for Gerotor Pumps with Multiple Profiles(Ellipse and Involute)

타원.인벌루트 조합 형상을 갖는 지로터 펌프의 통합적 설계 자동화 시스템 개발

  • Moon, Hyun-Ki (Department of Creative Engineering System, Pusan National Univ) ;
  • Jung, Sung-Yuen (Research Institute of Mechanical technology, Pusan National Univ.) ;
  • Bae, Jun-Ho (School of Mechanical Engineering, Pusan National Univ.) ;
  • Chang, Young-June (School of Mechanical Engineering, Pusan National Univ.) ;
  • Kim, Chul (Research Institute of Mechanical technology, Pusan National Univ.)
  • 문현기 (부산대학교 창의공학시스템학과) ;
  • 정성윤 (부산대학교 기계기술연구원) ;
  • 배준호 (부산대학교 기계공학부) ;
  • 장영준 (부산대학교 기계공학부) ;
  • 김철 (부산대학교 기계기술연구원)
  • Received : 2010.01.19
  • Accepted : 2010.06.15
  • Published : 2010.09.01
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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 lobe with elliptical and involute shapes, while the inner rotor profile is determined as conjugate to the other. And the integrated design system which is composed of three main modules has been developed through AutoLISP under AutoCAD circumstance plus CFD-ACE+. It generates new lobe profile and calculates automatically the flow rate and flow rate irregularity according to the lobe profile generated. CFD simulation results show trends similar to those carried out in experiments, and a quantitative comparison is presented. Results obtained from the automotive integrated design system enable the designer and manufacturer of oil pump to be more efficient in this field.

Keywords

Acknowledgement

Supported by : 한국산업기술진흥원

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