Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2002/066907
Kind Code:
A1
Abstract:
A refrigeration cycle device using carbon dioxide (CO¿2?) as a refrigerant is capable of preventing drawbacks, such as a sudden rise in high pressure at the start, and the compressor failing to be satisfactorily started owing to the actuation of a high pressure protection mechanism, by installing an oil separator as a refrigerant container in part of a high pressure side circuit, or by using an oil-less type or oil-poor type linear compressor, or by constructing a refrigeration cycle device in which the amount of CO¿2? refrigerant sealed in the circuit is not more than 0.25 kilogram per liter on the basis of the total inner volume of the circuit.
Inventors:
OKAZA NORIHO (JP)
FUNAKURA MASAMI (JP)
NISHIWAKI FUMITOSHI (JP)
YOSHIDA YUJI (JP)
YAKUMARU YUUICHI (JP)
FUNAKURA MASAMI (JP)
NISHIWAKI FUMITOSHI (JP)
YOSHIDA YUJI (JP)
YAKUMARU YUUICHI (JP)
Application Number:
PCT/JP2002/001441
Publication Date:
August 29, 2002
Filing Date:
February 20, 2002
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
OKAZA NORIHO (JP)
FUNAKURA MASAMI (JP)
NISHIWAKI FUMITOSHI (JP)
YOSHIDA YUJI (JP)
YAKUMARU YUUICHI (JP)
OKAZA NORIHO (JP)
FUNAKURA MASAMI (JP)
NISHIWAKI FUMITOSHI (JP)
YOSHIDA YUJI (JP)
YAKUMARU YUUICHI (JP)
International Classes:
F25B9/00; F25B40/00; F25B43/02; F28F1/02; (IPC1-7): F25B1/00; F25B43/00
Foreign References:
| JP2804844B2 | 1998-09-30 | |||
| JP2000274890A | 2000-10-06 | |||
| JP2000046420A | 2000-02-18 | |||
| JPH0255063U | 1990-04-20 | |||
| JPH11351680A | 1999-12-24 | |||
| JPH11173688A | 1999-07-02 | |||
| JP2000161213A | 2000-06-13 | |||
| JP2000515958A | 2000-11-28 | |||
| JP2000110725A | 2000-04-18 | |||
| JP2000046421A | 2000-02-18 |
Other References:
PETTERSEN J. ET AL.: "Development of compact heat exchangers for CO2 air-conditioning systems", INTERNATIONAL JOURNAL OF REFRIGERATION, vol. 21, no. 3, 1998, pages 180 - 193, XP004287241
Attorney, Agent or Firm:
Matsuda, Masamichi (1-3 Miyahara 5-chome, Yodogawa-k, Osaka-shi Osaka, JP)
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