Title:
COLD STORAGE APPARATUS, GIFFORD-MCMAHON COOLER, AND PULSE TUBE REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2011/115200
Kind Code:
A1
Abstract:
Disclosed is a helium-cooling type cold storage apparatus which cools and stores working gas, and which has at least two storage spaces along the temperature gradient direction in which the working gas circulates, said storage spaces accommodating helium gas which acts as a cold storage medium. The first storage space is disposed in the high-temperature region and accommodates the cold storage medium at a first pressure (P1) when the cold storage apparatus is operating. The second storage space is disposed in the low-temperature region and accommodates the cold storage medium at a second pressure (P2) when the cold storage apparatus is operating. The cold storage apparatus is characterised in that the first pressure (P1) is higher than the second pressure (P2) and when the pressure of the cold storage medium accommodated in the first storage space is the second pressure (P2), the specific heat of the cold storage medium becomes lower compared to when the pressure of the cold storage medium is the first pressure (P1), and when the pressure of the cold storage medium accommodated in the second storage space is the first pressure (P1), the specific heat of the cold storage medium becomes lower compared to when the pressure of the cold storage medium is the second pressure (P2).
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Inventors:
XU MINGYAO (JP)
Application Number:
PCT/JP2011/056361
Publication Date:
September 22, 2011
Filing Date:
March 17, 2011
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
XU MINGYAO (JP)
XU MINGYAO (JP)
International Classes:
F25B9/00
Foreign References:
| JPH03117855A | 1991-05-20 | |||
| JPH1137582A | 1999-02-12 | |||
| JPS6023761A | 1985-02-06 | |||
| JP2006524307A | 2006-10-26 |
Attorney, Agent or Firm:
ITOH, TADAHIKO (JP)
Tadahiko Ito (JP)
Tadahiko Ito (JP)
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Claims: