Linear Drive Stirling Cooler Technology

  • Peter J. Kerney
Part of the Applications of Cryogenic Technology book series (APCT, volume 10)

Abstract

Stirling cycle cryocoolers are used for cooling IR detectors in a number of military of military and commercial applications including missile guidance systems and night vision security systems. There is an ever increasing demand for longer and longer maintenance free operation of these coolers.

A critical component in the development of a long life, highly reliable Stirling cooler is the drive motor. Present state-of-the-art production 77K Stirling cryogenic coolers utilize rotary drive motors in a variety of configurations, brush/brushless, with AC and DC input power. In existing packaging concepts, these motors tend to be a source of particulate and gaseous contamination which reduces the overall system reliability. Linear drive technology offers the potential for significantly reducing the life limiting elements in the cooler design. Operational flexibility and low mechanical vibration are promising added features of this drive motor approach.

This paper reviews the status of linear drive technology developments at CTI-CRYOGENICS and describes mechanical designs and cryogenic performance for several sizes of Stirling coolers.

Keywords

Drive Motor Eddy Current Loss Cold Expander Linear Drive Stirling Cycle 
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.
    F. Eberth, F. Chellis, “Comparing Closed Cycle Cryocoolers”, Electro-Optical System Design, November 1979.Google Scholar
  2. 2.
    F. W. Pirtle, P. K. Bertsch, P. J. Kerney, “Cryogenic Cooler Seals Investigation”, AFWAL-TR-87–3046, Air Force Wright Aeronautical Laboratories, September 1987.Google Scholar
  3. 3.
    P. J. Kerney, G. J. Higham, J. Vigilante, “Linear Resonance Split Cryocooler/Design and Component Development Program”, Final Report, U.S. Army Contract DAAK 70–82C-0222, February 1985.Google Scholar
  4. 4.
    F. Stolfi, A. K. de Jonge, “Stirling Cryogenerators with Linear Drive”, Phillips Technical Review, Volume 42, No. 1.Google Scholar
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    N. O. Young, R. Henderson, P. J. Kerney, “Refrigeration System with Linear Motor Trimming of Displacer Movement”, U. S. Patent 4,475, 346, October 1984.Google Scholar

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Peter J. Kerney
    • 1
  1. 1.CTI-CRYOGENICSWalthamUSA

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