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Performance Improvement of Oil Pump by Design of Gerotor (Combined Profile - Two Ellipses) and Port
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 Title & Authors
Performance Improvement of Oil Pump by Design of Gerotor (Combined Profile - Two Ellipses) and Port
Kwak, Hyo Seo; Li, Sheng Huan; Kim, Chul;
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A gerotor is suitable for miniature manufacturing because it has high discharge per 1 cycle and a simple structure, while also being widely used for lubrication oil of engines and as a hydraulic source of automatic transmission. In the automobile industry, improvements in fuel efficiency and noise reduction have recently come to the fore. It has also been necessary to continuously improve the flow rate and noise of internal gear pumps for better fuel efficiency through optimal gerotor and port shape design. In this study, to develop an optimal gerotor with a new lobe shape, 2-ellipses-combined, the equation of the lobe shape was derived, and CFD analysis results were compared for 2-ellipses with those of the previous gerotors (3-ellipses and ellipse1-involuteellipse2). A performance test for the oil pump with the optimal rotor (2-ellipses) was carried out and showed good agreement with the results obtained from CFD analysis.
Gerotor;Combined profile;2-Ellipse;Computational fluid analysis;Performance test;
 Cited by
Performance improvement of an oil pump: Design of port assembled with gerotor (2-ellipses-combined lobe), International Journal of Precision Engineering and Manufacturing, 2016, 17, 8, 1017  crossref(new windwow)
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