Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/160967
Kind Code:
A1
Abstract:
During the execution of a heating operation in which a use-side heat exchanger is made to function as a condenser when there is a low external air temperature of a pre-established level, a low external air temperature heating operation activation mode is executed in which, while refrigerant which has been discharged from a compressor is made to flow into the use-side heat exchanger, refrigerant which has been made to flow into an injection pipe is mixed with refrigerant which is a part of the refrigerant that has been discharged from the compressor and that has flowed through a connection pipe and radiated heat in a heat-source-side heat exchanger, and the mixed refrigerants are then supplied to an injection port in the compressor, and subsequently a transition is made to a low external air temperature heating operation mode in which, while refrigerant which has been discharged from the compressor is made to flow into the use-side heat exchanger, the refrigerant is supplied to the injection port in the compressor, via the injection pipe.
Inventors:
HATOMURA TAKESHI (JP)
YAMASHITA KOJI (JP)
TAKENAKA NAOFUMI (JP)
YAMASHITA KOJI (JP)
TAKENAKA NAOFUMI (JP)
Application Number:
PCT/JP2012/002924
Publication Date:
October 31, 2013
Filing Date:
April 27, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
HATOMURA TAKESHI (JP)
YAMASHITA KOJI (JP)
TAKENAKA NAOFUMI (JP)
HATOMURA TAKESHI (JP)
YAMASHITA KOJI (JP)
TAKENAKA NAOFUMI (JP)
International Classes:
F25B1/00; F25B13/00
Foreign References:
| JP2011099572A | 2011-05-19 | |||
| JP2008138921A | 2008-06-19 | |||
| JPH06341740A | 1994-12-13 | |||
| JPH07280378A | 1995-10-27 | |||
| JP2008138921A | 2008-06-19 |
Other References:
"Course in Basics and Applications of Valve Technology", 30 June 1998, SAKUTARO KOBAYASHI
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (JP)
Hisao Kobayashi (JP)
Hisao Kobayashi (JP)
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