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Development of an Integrated System for Automated Design of Gerotor Oil Pump  

Kim, Jae-Hun (부산대학교 정밀정형및금형가공연구소)
Kim, Chul (부산대학교 기계기술연구소)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.2, 2006 , pp. 88-96 More about this Journal
Abstract
A gerotor pump is suitable for oil hydraulics of machine tools, automotive engines, compressors, constructions and other various applications. Especially 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 the internal lobe pump which is a particular type of positive displacement pump. The main components of the pump are rotors; usually the outer rotor profile is characterized by lobes with circular shape, while the inner rotor profile is determined as conjugate as the outer rotor profile. For this reason the topic presented here is the definition of the geometry of the rotors starting from the design parameters. The choice of these parameters is subject to some limitations in order to avoid cusp and loop between rotors. And the integrated system which is composed of three main modules has been developed through AutoLISP & Visual Basic and CAD considering various design parameters. It generates automatically an designed model for a general type of a gerotor pump and allows us to calculate two performances indexes commonly used for the study of positive displacement pumps: the flow rate and flow rate irregularity. Results obtained using the system enable the designer and manufacturer of oil pump to be more efficient in this field.
Keywords
Automated design system; Oil pump; Trochoid; Flow rate;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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