Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2016020760
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air conditioner capable of reducing a refrigerant filling amount without increasing the size of an outdoor unit.SOLUTION: A CPU determines whether or not all of the calculated second supercooling degrees SCs1-SCs3 are equal to or greater than a target supercooling degree SCtg. When all the second supercooling degrees SCs1-SCs3 are equal to or greater than the target supercooling degree SCtg, the CPU does not change the opening of a supercooling expansion valve. When one or two of the second supercooling degrees SCs1-SCs3 are below the target supercooling degree SCtg, the CPU increases the opening of the supercooling expansion valve by a predetermined opening degree. When the opening of the supercooling expansion valve is increased, a refrigerant amount flowing into each supercooling heat exchanger from an inflow pipe increases, and the refrigerant flowing in a first liquid content pipe, a second liquid content pipe and a third liquid content pipe is cooled further more, and the second supercooling degrees SCs1-SCs3 become larger.SELECTED DRAWING: Figure 2
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Inventors:
TAKANO KENICHI
Application Number:
JP2014143933A
Publication Date:
February 04, 2016
Filing Date:
July 14, 2014
Export Citation:
Assignee:
FUJITSU GENERAL LTD
International Classes:
F25B13/00; F24F11/02; F25B1/00; F25B40/00
Domestic Patent References:
| JP2011052884A | 2011-03-17 | |||
| JPH03134445A | 1991-06-07 | |||
| JP2008180422A | 2008-08-07 |
Foreign References:
| WO2009150761A1 | 2009-12-17 | |||
| US20130019613A1 | 2013-01-24 |