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Development of the 0.5 W/80 K co-axial and U-shaped pulse tube cryocoolers.

Author(s) : LIANG J., HUANG Z. W., ZHANG H., et al.

Summary

In order to meet the requirements of different applications, two types of cold heads, i.e. co-axial and U-shape, are being developed for the 0.5 W/80 K class pulse tube refrigerator in the Cryogenic Laboratory of the Chinese Academy of Sciences. Linear compressors with flexure springs are being developed for driving the pulse tube cold head. The first prototype compressor with a maximum swept volume of 2 cm3 has reached efficiencies higher than 80%, while further improvements are being made. The prototype linear compressor was coupled with the co-axial cold heads. The prototype co-axial PTR reaches the lowest temperature of 64 K, and has cooling power of 0.4 W at 80 K.

Details

  • Original title: Development of the 0.5 W/80 K co-axial and U-shaped pulse tube cryocoolers.
  • Record ID : 2006-0006
  • Languages: English
  • Source: Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
  • Publication date: 2002/07/22

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