Multistage, Gas-Bearing, Helium Compressor Development
The development of a highly reliable, long-life cryogenic refrigerator for space vehicle application is currently in progress. The program objective is to demonstrate feasibility of the refrigeration system for 1–2 W capacity at refrigeration temperatures of 3.6° and 4.2°K. This paper describes one of the major components of the refrigerator, a four-stage compressor of the regenerative type driven by an integral electric motor. For reasons of system simplicity, performance and reliability, only self-acting (hydrodynamic) gas bearings are used in the compressor.
KeywordsJournal Bearing Thrust Bearing Compressor Stage Labyrinth Seal Blade Root
Unable to display preview. Download preview PDF.
- 1.N. J. Lipstein, “A Correlation of Fan Performance for Solving Selection Problems,” ASME 61-Hyd-6; also Mechanical Engineering 83:11 (1961).Google Scholar
- 3.Ray E. Roth Co., Turbine Pump Division, Rock Island, Ill.Google Scholar
- 4.Worthington Corporation, Turbine Pumps, Harrison, N.J.Google Scholar
- 5.W. A. Wilson, S. A. Santalo, and I. A. Oelrich, “A Theory of the Fluid-Dynamic Mechanism of Regenerative Pumps,” Trans. ASME 77:1303 (1955).Google Scholar
- 6.Y. Senoo, “A Comparison of Regenerative-Pump Theories, etc.,” Trans. ASME 78:1091 (1956).Google Scholar
- 7.E. J. Gunter, J. G. Hinkle, and D. D. Fuller, “The Effects of Speed, Load and Film Thickness on Pressure Distribution in Gas-Lubricated Tilting-Pad Journal Bearings,” ASLE Paper 64AM4B2 (May 27, 1964).Google Scholar