Title:
REFRIGERATING CYCLE
Document Type and Number:
WIPO Patent Application WO/2000/023752
Kind Code:
A1
Abstract:
A refrigerating cycle wherein the pressure of a high pressure line (8) is lowered when the pressure is abnormally high by transmitting the high pressure to the low pressure line (9) without releasing the coolant to the atmosphere, and the coolant is released to the atmosphere only when the pressure of the low pressure line (9) is abnormally high. First safety means (10) for communication of the high pressure line (8) with the low pressure line (9) is provided, and second safety means (11) is provided between the low pressure line (9) and the atmosphere. The high pressure coolant of the high pressure line (8) is leaked to the low pressure side by the first safety means (10) when the high pressure exceeds a first pressure. Hence, the pressure rise of the high pressure line (8) can be lessened by the allowance of the low pressure line (9), and the high pressure is lowered to prevent the outflow of the coolant. Only when the pressure of the low pressure line (9) exceeds a second pressure, the coolant is released to the atmosphere by the second safety means, so that release of the coolant of the refrigerating cycle can be avoided as much as possible.
Inventors:
FURUYA SHUNICHI (JP)
TANDA KIYOSHI (JP)
TANDA KIYOSHI (JP)
Application Number:
PCT/JP1998/004705
Publication Date:
April 27, 2000
Filing Date:
October 19, 1998
Export Citation:
Assignee:
ZEXEL CORP (JP)
FURUYA SHUNICHI (JP)
TANDA KIYOSHI (JP)
FURUYA SHUNICHI (JP)
TANDA KIYOSHI (JP)
International Classes:
F25B31/00; F25B40/00; F25B41/06; F25B43/02; F25B49/00; F25B9/00; (IPC1-7): F25B1/00
Foreign References:
| JPH03503206A | 1991-07-18 | |||
| JPH07502335A | 1995-03-09 | |||
| JPH0718602A | 1995-01-20 |
Other References:
See also references of EP 1124099A4
Attorney, Agent or Firm:
Onuki, Kazuyasu (Shibuya 1-chome Shibuya-ku Tokyo, JP)
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