✦ LIBER ✦

Research of pulse tube refrigerator with high and low temperature double-inlet

✍ Scribed by Yang Luwei; Zhou Yuan; Liang Jingtao

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 243 KB
Volume: 39
Category: Article
ISSN: 0011-2275
DOI: 10.1016/s0011-2275(99)00054-5

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✦ Synopsis

Through analyzing phase relation between pressures and flow characteristics of double-inlet and multi-bypass, mechanism of double-inlet to lower the temperature of pulse tube refrigerator is proposed. Then another proposal is put forward to replace the low temperature multi-bypass valve, which is another double-inlet valve at room temperature and a small tube prolonging to the low temperature part of pulse tube. Through experiment, this multi-double-inlet version proves effective to lower the refrigeration temperature. Test acquires a lowest temperature of 37 K with two double inlet valves and 50 K with one double inlet valve. The concept of low temperature double-inlet is proposed here for the first time.

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