Title:
CRYOGENIC REFRIGERATOR
Document Type and Number:
Japanese Patent JP3733079
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cryogenic refrigerator which enhances the heat-insulating effect of a freezing room which is kept in ultralow temperature by binary freezer.
SOLUTION: A vertical ultralow-temperature freezer 1 is composed of a heat-insulating casing 7 which is of composite constitution between a vacuum heat-insulating panel 5 and a foamed heat-insulating material 6, a heat-insulating door 8 which is of composite constitution between the vacuum heat-insulating panel 5 and the foamed heat-insulating material 6, and the binary freezer 14 which cools the goods stored in the above heat-insulating casing. The binary freezer produces ultralow temperature, cascade-connecting a refrigerant circuit on high temperature side with a refrigerant circuit on low temperature side.
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Inventors:
Yuichi Tamaki
Yasushi Sakata
Yasushi Sakata
Application Number:
JP2002096275A
Publication Date:
January 11, 2006
Filing Date:
April 25, 1997
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
F25D11/04; F25D23/00; F25B7/00; F25D23/02; F25D23/06; F25D23/08; (IPC1-7): F25D11/04; F25B7/00; F25D23/00; F25D23/02; F25D23/06; F25D23/08
Domestic Patent References:
| JP10300330A | ||||
| JP62294855A | ||||
| JP5287263A | ||||
| JP6094314A | ||||
| JP9061021A | ||||
| JP58035791U | ||||
| JP8143696A | ||||
| JP8068591A | ||||
| JP7234067A | ||||
| JP8247632A | ||||
| JP8028978A | ||||
| JP7190601A |
Attorney, Agent or Firm:
Masamasa Shibano