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제우성(Woo-Seong Che),이동수(Dong-Soo Lee),김정현(Jung Hyun Kim),손을호(Eul-Ho Son),양승용(Seung-Young Yang) 한국자동차공학회 2010 한국자동차공학회 지부 학술대회 논문집 Vol.2010 No.12
External gear pumps are the most widely employed source of power in hydraulic applications, allowing good performance and low manufacturing cost Generally, pumps with involute external gears are most commonly used. The undesired large pressure overshoots or spikes could be excited by virtue of the sudden volumetric change of meshing pockets. In practice, the spikes cause the gear machines to be noisy, inefficient, and have fatigue problems. In order to improve above issue, relief grooves are adopted practically. In this paper, the effects of relief groove configurations are considered by using analysis.