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http://dx.doi.org/10.7736/KSPE.2012.29.9.1003

Development of Rotor for Internal Gear Pump using Cycloid and Polycircular-arc Curves  

Kim, Min-Soo (Creative Engineering System, Pusan National Univ.)
Lee, Hyun-Woo (Creative Engineering System, Pusan National Univ.)
Jung, Sung-Yuen (Research Institute of Mechanical Technology, Pusan National Univ.)
Kim, Chul (Research Institute of Mechanical Technology, Pusan National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.29, no.9, 2012 , pp. 1003-1011 More about this Journal
Abstract
A new type of gerotor developed in this paper has the inner rotor designed by inserting a polycircular-arc between the hypocycloid and epicycloid curves, and we also suggest that the outer rotor be designed using the closed-form equation for the inner rotor and a method of modification. Thus, it is possible to design a gerotor for which there is no cusp and loop, as in this case undercut is prevented. We developed automated program for rotor design and calculation of the flow rate and flow rate irregularity. And we also demonstrate the superior performance of the gerotor developed in this study by analyzing the internal fluid flow using a commercial computation fluid dynamics-code (CFD).
Keywords
Gear Pump; Gerotor; Polycircle; Cycloid; Eccentricity; Flow Rate;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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