Cryocoolers 11 pp 337-343 | Cite as

Analysis and Experimental Research of a Multi-Bypass Version Pulse Tube Refrigerator

  • L. W. Yang
  • J. T. Liang
  • Y. Zhou


One important configuration of a pulse tube refrigerator is the multi-bypass pulse tube refrigerator (MPTR). This paper analyzes the working processes of this PT configuration and presents some experimental results taken using operating frequencies below 5 Hz. The analysis shows that a MPTR is different from a general multi-stage cooler, but works somewhat like a multi-stage cooler to a certain extent. Experimental results are presented and compared to former results. The experiments demonstrate that the multi-bypass channel leads to an improvement in performance, and that the function of the multi-bypass more resembles a double-inlet than the first-stage of a multi-stage cooler.


Pulse Tube Orifice Opening Refrigeration Temperature High Temperature Part Pulse Tube Refrigerator 
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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • L. W. Yang
    • 1
  • J. T. Liang
    • 1
  • Y. Zhou
    • 1
  1. 1.Cryogenic LaboratoryChinese Academy of SciencesBeijingChina

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