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로브 형상 변화가 루츠형 진공 펌프 성능에 미치는 영향
김현중,김윤제,황영규,Kim, H.-J.,Kim, Youn J.,Hwang, Y.-K. 한국유체기계학회 2000 한국유체기계학회 논문집 Vol.3 No.2
The effects of lobe shapes on the leak flow conductance of Roots-type vacuum pump are studied numerically and experimentally. The modelled lobe shape of Roots-type vacuum pump is two-lobe spur gear. The numerical analyses are performed on leak flows in Roots-type vacuum pump. It is numerically calculated using a 4th-order Runge-Kutta method and is compared with experimental results. Results show that for the case of involute lobe shape the total amount of the leak flow conductance is greater than that of cycloid and Cassini oval lobe shapes.