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Patent Searching and Data


Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/144994
Kind Code:
A1
Abstract:
This air conditioning device is configured so that during an operation in which some of a plurality of use-side heat exchangers serve as a condenser and the others serve as an evaporator, when, from between use-side heat exchangers (31a, 31b) that are operating in the same operation mode as a heat source-side heat exchanger, there is a request from the first use-side heat exchanger (31b) to increase heat-exchange capability, the heat exchange capacity of a heat source-side heat exchanger (13) is made small, the opening degree of an expansion valve (32a) corresponding to the second use-side heat exchanger (31a) that did not make a heat-exchange capability increase request is controlled, and the flow rate of a refrigerant flowing to the second use-side heat exchanger (31a) is reduced. This configuration enables the capability of the first use-side heat exchanger to be made greater than the design capacity, and prevents the capability of the second use-side heat exchanger from becoming excessive.

Inventors:
TAKAYAMA KEISUKE (JP)
MORIMOTO OSAMU (JP)
SHIMAMOTO DAISUKE (JP)
Application Number:
PCT/JP2012/002096
Publication Date:
October 03, 2013
Filing Date:
March 27, 2012
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
TAKAYAMA KEISUKE (JP)
MORIMOTO OSAMU (JP)
SHIMAMOTO DAISUKE (JP)
International Classes:
F25B29/00; F25B1/00; F25B5/02
Domestic Patent References:
WO2011099067A12011-08-18
Foreign References:
JPS61110833A1986-05-29
JPH08291952A1996-11-05
JP2007271112A2007-10-18
JPH02279962A1990-11-15
JP2002317996A2002-10-31
JPS62141163U1987-09-05
JPH08320158A1996-12-03
JPH04110573A1992-04-13
JPH02217738A1990-08-30
JP2007271112A2007-10-18
Other References:
See also references of EP 2833086A4
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (JP)
Hisao Kobayashi (JP)
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