Refrigeration – Refrigeration producer – Evaporator – e.g. – heat exchanger
Patent
1980-03-10
1981-11-03
Capossela, Ronald C.
Refrigeration
Refrigeration producer
Evaporator, e.g., heat exchanger
F25B 1900
Patent
active
042978564
ABSTRACT:
A .sup.3 He-.sup.4 He dilution refrigerator comprises an upper mixing chamber for mixing liquid concentrated .sup.3 He and superfluid .sup.4 He, and a lower segregating chamber for separating concentrated .sup.3 He and superfluid .sup.4 He. An auxiliary chamber is situated between the mixing chamber and the segregating chamber. A connecting duct extends between the segregating chamber and the auxiliary chamber. The upper part of the auxiliary chamber communicates with the upper part of the mixing chamber for flow of concentrated .sup.3 He into the latter; and the lower part of the auxiliary chamber communicates with the lower part of the mixing chamber for flow of dilute .sup.3 He to the lower part of the auxiliary chamber.
REFERENCES:
patent: 3581512 (1971-06-01), Staas et al.
patent: 3835662 (1974-09-01), Staas et al.
patent: 3896630 (1975-07-01), Severijns et al.
patent: 4136531 (1979-01-01), Staas et al.
Taconis et al.: A .sup.4 He-.sup.3 He Refrigerator Through Which .sup.4 He is Circulated, Physica (1971), pp. 168-170.
An Improved Version of the .sup.3 He-.sup.4 He Refrigerator Through Which .sup.4 He is Circulated, Cryogenics, vol. 14, No. 1, Jan. 1974, pp. 53-54.
Severijns Adrianus P.
Staas Frans A.
van Haeringen Willem
Briody Thomas A.
Capossela Ronald C.
Schneider Rolf E.
Streeter William J.
U.S. Philips Corporation
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