Advances in Cryogenic Engineering pp 779-785 | Cite as
A Clean Helium Reciprocating Compressor Incorporating Orbital Squeeze Film Bearings
Chapter
Abstract
A contamination-free helium compressor for cryogenic refrigerators was designed, built, and tested. The machine incorporates a reciprocating shaft which floats on novel orbital squeeze film bearings to eliminate wear, sliding friction, and contaminating lubricants. The prototype compressor demonstrated pressure ratios greater than 4:1. At the design pressure ratio of 3:1, a 0.14 g/s flowrate was measured. A flowrate of 0.25 g/s was measured with the compressor unloaded. After 216 hours of endurance testing at design conditions, the compressor exhibited no visible signs of wear.
Keywords
Pressure Ratio Leakage Flow Stroke Length Squeeze Film Orbiter Magnet
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References
- 1.H. Sixsmith, U.S. Patent No. 3, 523, 715, U.K. Patent No. 1999, Rotating Field Gas Bearings.Google Scholar
Copyright information
© Springer Science+Business Media New York 1992