Refrigeration – Storage of solidified or liquified gas – With conservation of cryogen by reduction of vapor to liquid...
Patent
1993-03-26
1995-01-10
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
With conservation of cryogen by reduction of vapor to liquid...
62 511, 505892, F17C 502
Patent
active
053796004
ABSTRACT:
A superconducting magnet which is capable of improving the refrigerating and the assembling characteristics and of composing in small size. A helium vessel 2 contains a cylindrical superconducting coil for cryogenically refrigerating it by liquid helium. A second and a first heat-shields 5 and 6 and a vacuum vessel 4 are coaxially provided so as to surround the helium vessel 2. Over the helium vessel 2, a L-letter shaped duct 50 is provided to be exposed to helium gas atmosphere being evaporated in the helium vessel 2. A refrigerator-mounting cylinder 51 has an end coupled to the L-letter shaped duct 50 through the bellows 52 and is mounted on an end surface of the vacuum vessel 4 substantially in parallel to the axial direction of the superconducting coil. A three-stage cold heat accumulation refrigerator 30 is inserted into and fixed to the refrigerator-mounting cylinder 51 for reliquefying the helium gas having been drawn into the L-letter shaped duct 50 by a third heat state 43.
REFERENCES:
patent: 4535596 (1985-08-01), Laskaris
patent: 4693736 (1987-09-01), Klusmeir
patent: 4897226 (1990-01-01), Hoyle et al.
patent: 5092130 (1992-03-01), Nagao et al.
patent: 5144810 (1992-09-01), Nagao et al.
Horikawa Mitsuo
Inaguchi Takashi
Matsumoto Takahiro
Moritsu Kazuki
Nagao Masashi
Capossela Ronald C.
Mitsubishi Denki & Kabushiki Kaisha
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