REFRIGERATION DEVICE

WIPO Patent Application WO/2010/064427

A1

A refrigerant circuit (5) of an air conditioner (1) performs single-stage compression refrigeration cycle.  In the refrigerant circuit (5), a second heat exchanger (40) is provided downstream of a first heat exchanger (30).  The first heat exchanger (30) cools a high-pressure refrigerant in a high-pressure flow path (31) by causing the high-pressure refrigerant to exchange heat with a first intermediate-pressure refrigerant in an intermediate-pressure flow path (32).  A first intermediate-pressure gas refrigerant generated by the first heat exchanger (30) is supplied to a first compression mechanism (71).  A second intermediate-pressure refrigerant having a lower pressure than the first intermediate-pressure refrigerant is supplied to an intermediate-pressure flow path (42) of the second heat exchanger (40).  The second heat exchanger (40) further cools the high-pressure refrigerant in a high-pressure flow path (41) by causing the high-pressure refrigerant to exchange heat with the second intermediate-pressure refrigerant in the intermediate-pressure flow path (42).  A second intermediate-pressure gas refrigerant generated by the second heat exchanger (40) is supplied to a second compression mechanism (72).

FURUI SHUJI (JP)
FURUSHO KAZUHIRO (JP)
MORIWAKI MICHIO (JP)
IWATA IKUHIRO (JP)

PCT/JP2009/006561

June 10, 2010

December 02, 2009

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DAIKIN IND LTD (JP)
FURUI SHUJI (JP)
FURUSHO KAZUHIRO (JP)
MORIWAKI MICHIO (JP)
IWATA IKUHIRO (JP)

F25B1/10; F25B1/00; F25B13/00

JPS57120972U	1982-07-27
JP2005315506A	2005-11-10
JPS625055A	1987-01-12
JP2003130477A	2003-05-08
JPH07190520A	1995-07-28
JP2007232280A	2007-09-13
JP2004183913A	2004-07-02
JPH1193874A	1999-04-06
JP2002188865A	2002-07-05

See also references of EP 2357427A4

MAEDA, Hiroshi et al. (JP)
Hiroshi Maeda (JP)

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