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Application of regenerative compressors to helium refrigerators. Characteristics of magnetic bearings for compressors.

[In Japanese. / En japonais.]

Author(s) : TOGO S., TAMADA N., OKANO M., et al.

Type of article: Article

Summary

New types of oil-free helium refrigerators, using centrifugal compressors are now under development to cool the superconducting electric power generators. Because of their low efficiency, not much attention has been paid to regenerative compressors up to now. But, their compression characteristics are desirable for helium refrigerators which require perfect reliability for cooling practical superconducting machines. The paper describes the merits expected by adaptation of regenerative compressors to new type helium refrigerators, construction of the trial compressor equipped wiht 5-axis controlled magnetic bearings and results of the basic test operation of the magnetic bearings.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1993-0625
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 27 - n. 1
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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