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Development of a Long-Life Stirling Cryocooler

  • Y. Ikuta
  • Y. Suzuki
  • K. Kanao
  • N. Watanabe
Chapter

Abstract

A Stirling cryocooler for high temperature superconducting devices has been developed. High efficiency and long lifetime are emphasized in the development. Its performance is 6 W at 70 K with 150 W input under 23°C ambient conditions; at 50°C ambient, it produces 5 W at 70 K with 150 W consumption. The mean time before failure for the design is over 40,000 hours. Flexure springs are used to support the compressor cylinders and the displacer in the cold head to realize this lifetime. The flexure springs are designed using finite element modeling (FEM) to reduce the stress to below the fatigue limit.

Keywords

High Temperature Superconducting Fatigue Limit Linear Motor Cooling Power Heat Rejection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Walker, G., Cryocoolers, Plenum Press, New York (1983).Google Scholar
  2. 2.
    Aubon, C.R. and Peters, N.R., “Miniature Long-life Tactical Stirling Cryocoolers,” Cryocoolers 9, Plenum Press, New York (1997), pp. 109–11Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Y. Ikuta
    • 1
  • Y. Suzuki
    • 1
  • K. Kanao
    • 1
  • N. Watanabe
    • 1
  1. 1.Research and Development CenterSumitomo Heavy Industries, Ltd.Hiratsuka, KanagawaJapan

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