Title:
REFRIGERATING AIR CONDITIONER
Document Type and Number:
Japanese Patent JP3882056
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a refrigerating air conditioner having a high efficiency in heating operation and an enhanced reliability by collecting exhaust heat of a refrigerating unit and utilizing the heat for air conditioning.
SOLUTION: The refrigerating air conditioner comprises an air conditioner constituted by annularly connecting an air conditioner compressor 1, a four-way valve 2, an indoor heat exchanger 4, an expansion valve 3 and an air conditioner outdoor heat exchanger 5 and a refrigerating machine constituted by annularly connecting a refrigerating machine compressor 6, a refrigerating machine outdoor heat exchanger 8, a refrigerating machine expansion valve 7 and an evaporator 9, and recovers exhaust heat of the refrigerating machine when the air conditioner is operated for heating. A heat exchanger 10 for heat recovery arranged between the expansion valve 3 and the air conditioner outdoor heat exchanger 5 is provided so that the evaporator 9 is operated to attain a set temperature when the air conditioner is operated for heating to heat-exchange between the refrigerant gas compressed by the compressor 6 and the refrigerant decompressed through the valve 3.
Inventors:
Inami Yukio
Chiaki Takao
Kazuhiko Inoue
Chiaki Takao
Kazuhiko Inoue
Application Number:
JP2001193872A
Publication Date:
February 14, 2007
Filing Date:
June 27, 2001
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F25B7/00; F25B25/00; (IPC1-7): F25B7/00; F25B25/00
Domestic Patent References:
| JP11264621A | ||||
| JP2000292021A |
Attorney, Agent or Firm:
Manabu Inoue
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