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http://dx.doi.org/10.7736/KSPE.2016.33.11.927

Optimal Design of Gerotor (Ellipse1-Elliptical Involute-Ellipse2 Combined Lobe Shape) for Improving Fuel Efficiency and Reducing Noise  

Kwak, Hyo Seo (Department of Mechanical Convergence Technology, Pusan National University)
Li, Sheng Huan (Department of Mechanical Convergence Technology, Pusan National University)
Kim, Chul (Research Institute of Mechanical Technology, Pusan National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.33, no.11, 2016 , pp. 927-935 More about this Journal
Abstract
A gerotor is suitable for miniature manufacturing because it has a high discharge per cycle and a simple structure, while also being widely used as lubrication oil of engines and the hydraulic source of automatic transmission. In the automobile industry, it has been necessary to continuously improve the flow rate and noise of internal gear pumps for better fuel efficiency through optimal gerotor design. In this study, to obtain an optimal gerotor with an ellipse-elliptical involute-ellipse combined lobe shape, an automatic program was developed for calculating performance parameters and drawing a gerotor profile. An oil pump was assembled with the optimal gerotor together with the port used at the actual field and CFD analysis was performed on this assembly using Ansys-CFX. A performance test for the oil pump was carried out and showed good agreement with the results obtained from the theoretical analysis and the CFD analysis.
Keywords
Gerotor; Combined lobe shape; Elliptical involute; Computational fluid dynamics; Performance test;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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