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TECHNICAL PAPERS

Pumping Characteristics of a Herringbone-Grooved Journal Bearing Functioning as a Viscous Vacuum Pump

[+] Author and Article Information
S. Yoshimoto, Y. Ito

Department of Mechanical Engineering, Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku Tokyo 162, Japan

A. Takahashi

Copal Electronics Co., LTD, 2188 Akami-Cho Sano-City Tochigi, 327-01, Japan

J. Tribol 122(1), 131-136 (Jun 23, 1999) (6 pages) doi:10.1115/1.555371 History: Received February 18, 1999; Revised June 23, 1999
Copyright © 2000 by ASME
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References

Figures

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Laser scanner motor with a viscous vacuum pump
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Configuration of viscous vacuum pump with herringbone grooves
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Relationship between time and inner pressure
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Relationship between groove width ratio α and inner pressure
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Relationship between groove angle β and inner pressure
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Shaft configuration used in experiment
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Relationship between time and inner pressure for No. 1 pump
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Relationship between time and inner pressure for No. 2 pump
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Relationship between time and inner pressure (effect of chamber volume)

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