Multistage pulse tube cooler

Details Multistage pulse tube cooler Multistage pulse tube cooler

1990-04-09

1992-04-28

Makay, Albert J.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

62335, F25B 900, F25B 700

Patent

active

051076837

ABSTRACT:
A multistage pulse tube cooler in which a portion of the heat from each successively lower-temperature pulse tube cooler is rejected to a heat sink other than the preceding higher-temperature pulse tube cooler, thus substantially improving the overall efficiency of the multistage cooler. Multistage pulse tube coolers of the prior art reject all the heat from each successively lower-temperature pulse tube cooler to the preceding higher-temperature pulse tube cooler, thus imposing a large cooling load on the higher-temperature pulse tube coolers which considerably reduces the overall efficiency of the cooler.

REFERENCES:
patent: 3260055 (1966-07-01), Webb
patent: 3314244 (1967-03-01), Green
patent: 3318101 (1967-05-01), Van Geuns
patent: 3372554 (1968-03-01), Prast et al.
patent: 3400544 (1968-09-01), Prast
patent: 3431746 (1969-03-01), Webster et al.
patent: 3656313 (1972-04-01), Low et al.
patent: 3817044 (1974-06-01), Daniels
patent: 4522032 (1985-06-01), Nakamura
patent: 4700545 (1987-10-01), Ishibashi et al.

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