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Title:
REFRIGERATING DEVICE
Document Type and Number:
Japanese Patent JP2013210131
Kind Code:
A
Abstract:

To enhance efficiency of operation, in a refrigerating device capable of switching between a cooling operation and a heating operation.

An air conditioner 10 has a four-stage compressor 20, a fourth heat exchanger 44 of an outdoor heat exchanger 40, an indoor heat exchanger 12a, an expanding mechanism 70, and a bridge circuit 55, and an inside heat exchanger 62. The four-stage compressor 20 compresses refrigerant. The fourth heat exchanger 44 functions as a heat radiator when cooling and functions as an evaporator when warming. The indoor heat exchanger12a functions as an evaporator when cooling and functions as a heat radiator when warming. The expanding mechanism 70 decompresses refrigerant supplied from the heat radiator to the evaporator. The bridge circuit 55 is arranged between the indoor heat exchanger 12a and the outdoor heat exchanger 40. The inside heat exchanger 62 exchanges heat between refrigerant supplied from the indoor heat exchanger 12a to the four-stage compressor 20 and refrigerant supplied from the fourth heat exchanger 44 to the expanding mechanism 70. The inside heat exchanger 62 is arranged in a position where refrigerant does not flow when warming the bridge circuit 55.


Inventors:
OKAMOTO TETSUYA
KOSHO KAZUHIRO
IWATA YASUHIRO
YO KUNITADA
Application Number:
JP2012080417A
Publication Date:
October 10, 2013
Filing Date:
March 30, 2012
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F25B1/10; F25B1/00; F25B11/02; F25B41/04
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation



 
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