发明名称 |
Cryogenic cooling apparatus |
摘要 |
A split type cryogenic cooling apparatus comprising a refrigerator which permits a working gas of a high pressure and an operating temperature to generate cold heat, a cryostat accommodating a vessel containing liquefied fraction of the working gas together with an object to be cooled and a plurality of shield plates surrounding the vessel and maintained at respective temperature levels, and a communicating pipe system providing a communication between the refrigerator and the cryostat and having a vacuum heat insulation. Two or more stages of heat exchangers are disposed in the cryostat with their colder ends held in thermal contact with the shield plates and the vessel of temperature levels corresponding thereto, to thereby suppress an introduction of external heat into the cryostat.
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申请公布号 |
US4432216(A) |
申请公布日期 |
1984.02.21 |
申请号 |
US19820438464 |
申请日期 |
1982.11.02 |
申请人 |
HITACHI, LTD. |
发明人 |
MATSUDA, TOSHIHARU;KASAI, KENJIRO;KIKKAWA, SEIICHI;SAHO, NORIHIDE;MATUMOTO, KOUZO |
分类号 |
F25D11/00;F17C13/00;F25B9/00;F25B9/10;F25D3/10;F25J1/02;H01F6/04;H01L39/04;(IPC1-7):F25B19/00 |
主分类号 |
F25D11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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