REFRIGERATION DEVICE

WIPO Patent Application WO/2008/032578

A1

A refrigeration device having a refrigerant circuit formed by sequentially connecting a compressor, a radiator, a first expansion valve, a liquid receiver, a second expansion valve, and an evaporator, in which the level of refrigerant liquid in the liquid receiver is stably controlled. The refrigeration device (1, 101) has a compression mechanism (11), a radiator (13), a first expansion mechanism (15), a liquid receiver (16), a second expansion mechanism (17, 33a, 33b), an evaporator (31, 31a, 31b), a pressure detection section (21), a temperature detection section (22), and a control section (23). The pressure detection section is provided between the refrigerant outlet side of the compression mechanism and the refrigerant inlet side of the first expansion mechanism. The temperature detection section is provided between the exit side of the radiator and the refrigerant inlet side of the first expansion mechanism. The control section uses a pressure detected by the pressure detection section and a temperature detected by the temperature detection section to control the first expansion mechanism so that the refrigerant flowing out of the first expansion mechanism is in a saturated state.

KASAHARA SHINICHI (JP)
KURIHARA TOSHIYUKI (JP)

PCT/JP2007/066846

March 20, 2008

August 30, 2007

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DAIKIN IND LTD (JP)
KASAHARA SHINICHI (JP)
KURIHARA TOSHIYUKI (JP)

F25B1/00; F25B43/00

JP2002168536A	2002-06-14
JPH0835725A	1996-02-06
JP2002106959A	2002-04-10
JP2004100979A	2004-04-02
JP2005214443A	2005-08-11
JP2001004235A	2001-01-12
JPH10148404A	1998-06-02
JPH10115470A	1998-05-06

ONO, Yukio et al. (South Forest Bldg.1-4-19, Minamimori-machi, Kita-k, Osaka-shi Osaka 54, JP)

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