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Cryocoolers 11 pp 243-247 | Cite as

Two-Stage 4 K Pulse Tube Refrigerator

  • Shaowei Zhu
  • Masahiro Ichikawa
  • Masafumi Nogawa
  • Tatsuo Inoue
Chapter
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Abstract

This paper describes the manufacture and test of a thermally connected two-stage 4 K pulse tube refrigerator. The second stage of the refrigerator involved the use of either a “two middle-buffer with double inlet” type phase shifter or a “two middle-buffer with displacer.” The phase shifter of the first stage was a two middle-buffer type. The connecting tubes between the cold head and the pressure switching valves were 1.5 meter long in order to reduce the vibration and the electromagnetic noise near the cold head. The best cooling capacity, 0.58 W at 4.2 K, was achieved with 5.5 kW of input power and the two middle-buffer with double inlet type phase shifter.

Keywords

Mass Flow Rate Needle Valve Pulse Tube Valve Timing Bypass Line 
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References

  1. 1.
    Wang, C., Thummes, G., and Heiden, C., “Performance Study on a Two-Stage 4 K Pulse Tube Refrigerator,” Advances in Cryogenic Engineering, Vol. 43 (1998), pp. 2055–2062.Google Scholar
  2. 2.
    Chen, G., Qiu, L., Zheng, J., Yan, P., Gan, Z., Bai, X., and Huang, Z., “Experimental Study on a Double-Orifice Two-stage Pulse Tube Refrigerator,” Cryogenics, Vol. 37, No.5 (1997), pp. 271–273.CrossRefGoogle Scholar
  3. 3.
    Zhou, S.L., Thummes, G., and Matsubara, Y., “Experimental Investigation of Loss Mechanism in a 4 K Pulse Tube,” to be published in Advances in Cryogenic Engineering.Google Scholar
  4. 4.
    Zhu, S.W., Kakimi, Y., and Matsubara, Y., “Investigation of Active-buffer Pulse Tube Refrigerator,” Cryogenics, Vol. 37, No. 8 (1997), pp. 461–471.CrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Shaowei Zhu
    • 1
  • Masahiro Ichikawa
    • 1
  • Masafumi Nogawa
    • 1
  • Tatsuo Inoue
    • 1
  1. 1.Second Development DepartmentAisin Seiki Co., Ltd.Kariya, AichiJapan

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