REFRIGERATION DEVICE - DAIKIN IND LTD

Title:

REFRIGERATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2013/146870

Kind Code:

A1

Abstract:

Provided is an air conditioning device (10) configured so that the uneven flow of the refrigerant is easily prevented. The air conditioning device (10) is provided with a four-stage compressor (20), first to fourth heat exchangers (41-44), an indoor heat exchanger (12), switching mechanisms (31-34), an expansion mechanism (70), and a refrigerant piping group. During cooling operation, the first to third heat exchangers (41-43) function as heat radiators for cooling an intermediate-pressure refrigerant which is being subjected to compression, and during heating operation, the first to third heat exchangers (41-43) function as evaporators. The fourth heat exchanger (44) functions as a heat radiator during the cooling operation and functions as an evaporator during the heating operation. The refrigerant piping group is disposed so that the refrigerant flows serially through the first to third heat exchangers (41-43) during the heating operation.

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Inventors:

YANG GUOZHONG
OKAMOTO TETSUYA
IWATA IKUHIRO
FURUSHO KAZUHIRO

Application Number:

PCT/JP2013/058969

Publication Date:

October 03, 2013

Filing Date:

March 27, 2013

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F25B1/10; F25B6/02; F25B6/04; F25B13/00

Foreign References:

JPH01256762A	1989-10-13
JPH09250825A	1997-09-22
JP2011220616A	2011-11-04
JP2010112618A	2010-05-20

Other References: