Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance of Roots-type Vacuum Pump with Cassini Oval Lobe Shape

Cassini 형 루츠 진공 펌프의 성능에 관한 연구

  • 김현중 (성균관대학교 대학원 기계설계학과) ;
  • 조정현 (성균관대학교 대학원 기계설계학과) ;
  • 김윤제 (성균관대학교 기계공학부)
  • Published : 2000.04.20
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Abstract

The objective of this study is to elucidate the characteristic performance of Roots-type vacuum pump with Cassini oval lobe shape. The modelled lobe shape of Roots-type vacuum pump is two-lobe spur gear. The numerical analyses are performed fer leak flows, using 4th-order Runge-Kutta method and are 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.

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