Title:
MULTI-STAGE COMPRESSION REFRIGERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2001/022008
Kind Code:
A1
Abstract:
A multi-stage compression refrigerating device, comprising low stage compression means (32) and high stage compression means (34), a condenser (1), first decompression means (3), an intermediate cooler (6), second decompression means (7), and an evaporator (8), wherein refrigerant delivered from the condenser (1) is divided so as to feed one refrigerant from the first decompression means (3) to the intermediate cooler (6) and the other refrigerant from the second decompression means (7) to the evaporator (8), refrigerant flowing into the second decompression means (7) is heat-exchanged with the intermediate cooler (6), refrigerant delivered from the evaporator (8) is sucked into low stage compression means (32), and refrigerant delivered from the intermediate cooler (6) is sucked into high stage compression means (34) together with refrigerant delivered from low stage compression means (32), a second intermediate cooler (5) being provided between the evaporator (8) and the low stage compression means (32), the other refrigerant heat-exchanged with the second intermediate cooler (5) being heat-exchanged with the intermediate cooler (6), whereby the delivery gas refrigerant temperature of the high stage compression means can be suppressed, and refrigerating effects of the refrigerating device at the beginning of starting can be increased to improve the efficiency.
Inventors:
TADANO MASAYA (JP)
ODA ATSUSHI (JP)
EBARA TOSHIYUKI (JP)
YAMAKAWA TAKASHI (JP)
ODA ATSUSHI (JP)
EBARA TOSHIYUKI (JP)
YAMAKAWA TAKASHI (JP)
Application Number:
PCT/JP2000/006585
Publication Date:
March 29, 2001
Filing Date:
September 25, 2000
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
TADANO MASAYA (JP)
ODA ATSUSHI (JP)
EBARA TOSHIYUKI (JP)
YAMAKAWA TAKASHI (JP)
TADANO MASAYA (JP)
ODA ATSUSHI (JP)
EBARA TOSHIYUKI (JP)
YAMAKAWA TAKASHI (JP)
International Classes:
F25B1/10; F25B40/00; F25B41/04; F04C18/356; F04C23/00; F25B5/02; (IPC1-7): F25B1/10; F25B1/00
Foreign References:
| JPS5258148A | 1977-05-13 | |||
| JPS5121338A | 1976-02-20 | |||
| JPS59118975U | 1984-08-10 | |||
| JPS5526764Y2 | 1980-06-26 | |||
| JPH0194116U | 1989-06-21 | |||
| JPS60128990A | 1985-07-10 | |||
| JPS63112296U | 1988-07-19 |
Other References:
See also references of EP 1215449A4
Attorney, Agent or Firm:
Monda, Makoto (5F 10-5, Shinbashi 2-chome Minato-ku Tokyo, JP)
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