Title:
REFRIGERATOR AND METHOD OF FILLING IT WITH COOLANT
Document Type and Number:
WIPO Patent Application WO/1999/027314
Kind Code:
A1
Abstract:
A liquid-side closing valve (23) is provided between a liquid receiver (19) and an indoor heat exchanger (20) in a main circuit (12). On the downstream side of the liquid-side closing valve (23) is provided a coolant feeding unit (40A) equipped with a coolant feeding valve (40) connected to a coolant container (31). A pressure relaxing circuit (SVP) introduces the coolant of the coolant circuit (11) on the high-pressure side to the low-pressure side during the additional feed of the coolant by operating the compressors (15 and 22) with the liquid-side closing valve (23) closed. When the temperature of the superheat of the coolant that is delivered is higher than a first predetermined temperature, an injection circuit (SVT) supplies the low-temperature coolant on the downstream side of an outdoor-side electronic expansion valve (18) to the compressors (15, 22) to lower the temperature of the delivered coolant.
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Inventors:
ASHIDA TOSHIO (JP)
NAKAISHI SHINICHI (JP)
ISHII IKUJI (JP)
SASAKI NOBUTAKA (JP)
FURUTA SHIN (JP)
NAKAISHI SHINICHI (JP)
ISHII IKUJI (JP)
SASAKI NOBUTAKA (JP)
FURUTA SHIN (JP)
Application Number:
PCT/JP1998/005197
Publication Date:
June 03, 1999
Filing Date:
November 19, 1998
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
ASHIDA TOSHIO (JP)
NAKAISHI SHINICHI (JP)
ISHII IKUJI (JP)
SASAKI NOBUTAKA (JP)
FURUTA SHIN (JP)
ASHIDA TOSHIO (JP)
NAKAISHI SHINICHI (JP)
ISHII IKUJI (JP)
SASAKI NOBUTAKA (JP)
FURUTA SHIN (JP)
International Classes:
F25B1/00; F25B13/00; F25B45/00; F25B9/00; F25B41/04; (IPC1-7): F25B45/00
Foreign References:
| JPH08210736A | 1996-08-20 | |||
| JPH0455670A | 1992-02-24 | |||
| JPH04151475A | 1992-05-25 | |||
| JPH0599540A | 1993-04-20 | |||
| JPH10281597A | 1998-10-23 |
Other References:
"shinban Dai-4-Han, Reito-Kucho Binran (Kiso-Hen)", JAPAN SOCIETY OF REFRIGERATING AND AIR CONDITIONING ENGINEERING, pages 704 - 705
Attorney, Agent or Firm:
Maeda, Hiroshi (Utsubohonmachi 1-chome Nishi-ku Osaka-shi Osaka, JP)
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