Title:
FREEZER
Document Type and Number:
WIPO Patent Application WO/2003/042605
Kind Code:
A1
Abstract:
A refrigerant circuit (R) comprises a compressor (25) for compressing a refrigerant to a pressure higher than the critical pressure, a gas cooler (26), an electrically powered expansion valve (27), and an evaporator (28), and uses a natural type refrigerant. A receiver (43) is installed on the high pressure side of the refrigerant circuit (R). A regulating valve (44) is installed to regulate the amount of the refrigerant flowing in the receiver (43). A control device (55) regulates the degree of opening of the regulating valve (44) in such a manner as to bring the temperature of the receiver (43) closer to a target receiver temperature.
Inventors:
NAKAYAMA HIROSHI (JP)
SAKAMOTO SHINICHI (JP)
SAKAMOTO SHINICHI (JP)
Application Number:
PCT/JP2002/011122
Publication Date:
May 22, 2003
Filing Date:
October 25, 2002
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
NAKAYAMA HIROSHI (JP)
SAKAMOTO SHINICHI (JP)
NAKAYAMA HIROSHI (JP)
SAKAMOTO SHINICHI (JP)
International Classes:
F25B9/00; F25B1/00; F25B40/00; F25B45/00; F25B30/02; (IPC1-7): F24H1/00; F25B1/00
Foreign References:
| JPH10300244A | 1998-11-13 | |||
| AU2504195A | 1996-02-01 | |||
| JP2000266415A | 2000-09-29 | |||
| EP1059495A2 | 2000-12-13 | |||
| JPH10318613A | 1998-12-04 | |||
| JPH10160268A | 1998-06-19 | |||
| JPH07294044A | 1995-11-10 | |||
| JP2001133058A | 2001-05-18 | |||
| JP2002277078A | 2002-09-25 | |||
| JP2001141316A | 2001-05-25 | |||
| JP2000179958A | 2000-06-30 | |||
| US5987907A | 1999-11-23 |
Other References:
See also references of EP 1445551A4
Attorney, Agent or Firm:
Maeda, Hiroshi (4-8 Utsubohonmachi 1-chom, Nishi-ku Osaka-shi Osaka, JP)
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