Sealing Effects of Squeeze Air Film

[+] Author and Article Information
H. Takada

Department of Mechanical Engineering, Yokohama National University, Yokohama, 240 Japan

S. Kamigaichi

National Space Development Agency, Tokyo, 105 Japan

H. Miura

Department of Mechanical Engineering, University of Tokyo, Tokyo, 113 Japan

J. Tribol 108(4), 594-597 (Oct 01, 1986) (4 pages) doi:10.1115/1.3261273 History: Received April 25, 1983; Online October 29, 2009


The sealing effects of squeeze air film were analyzed experimentally and theoretically. The air flow rate and the sealed pressure were measured in a squeeze face seal. The air flow rate can be expressed as the difference between the flow rate by the pumping and the flow rate by the leakage. The air flow rate by the pumping increases proportionally to the square of the vibration amplitude of the surface, as does the sealed pressure. The air flow rate by the leakage increases proportionally to the pressure difference between the vessel pressure and the ambient pressure. The experimental results showed good agreement with the theoretical results.

Copyright © 1986 by ASME
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