Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/031218
Kind Code:
A1
Abstract:
An air conditioning device (10) is provided with a refrigerant circuit (20) which is formed by sequentially connecting a compressor (21), an indoor heat exchanger (22), a first expansion valve (23), a gas-liquid separator (24), a second expansion valve (26), and an outdoor heat exchanger (27) and which performs a two-stage expansion type refrigeration cycle. The refrigerant circuit (20) is provided with: a gas injection pipe (2c) through which an intermediate-pressure gas refrigerant from the gas-liquid separator (24) flows into the intermediate port of the compressor (21); and a liquid-gas heat exchanger (25) in which a low-pressure gas refrigerant evaporated in the outdoor heat exchanger (27) and flowing toward the compressor (21) exchanges heat with the intermediate-pressure refrigerant flowing from the gas-liquid separator (24) toward the second expansion valve (26).
Inventors:
FURUI SHUJI
FURUSHO KAZUHIRO
YOH HIROSHI
FURUSHO KAZUHIRO
YOH HIROSHI
Application Number:
PCT/JP2012/005455
Publication Date:
March 07, 2013
Filing Date:
August 29, 2012
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
FURUI SHUJI
FURUSHO KAZUHIRO
YOH HIROSHI
FURUI SHUJI
FURUSHO KAZUHIRO
YOH HIROSHI
International Classes:
F25B1/00; F25B40/00
Foreign References:
| JP2010101552A | 2010-05-06 | |||
| JP2007178042A | 2007-07-12 | |||
| JPH11142007A | 1999-05-28 | |||
| JPS57179066U | 1982-11-12 | |||
| JPH10148404A | 1998-06-02 |
Other References:
See also references of EP 2752627A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
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Claims:
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