Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2013/157404
Kind Code:
A1
Abstract:
When an expansion valve that can be fully closed is employed, in some cases it is not possible to detect that the valve is fully closed and that a refrigerant circuit is closed. The air conditioner (1) of the present invention comprises an indoor heat exchanger (14) that has an auxiliary heat exchanger (20) and a main heat exchanger (21) that is arranged on the downstream side of the auxiliary heat exchanger (20). During operation in a predetermined dehumidifying operation mode, all of the liquid refrigerant supplied to the auxiliary heat exchanger (20) evaporates partway through the auxiliary heat exchanger (20). As a result, only a portion of the upstream side of the auxiliary heat exchanger (20) is an evaporation region, and the area on the downstream side of the evaporation region for the auxiliary heat exchanger (20) is a superheating region. In addition, an evaporation temperature sensor (30) that detects evaporation temperature is arranged on the downstream side of an expansion valve (13) for an outdoor unit (3).
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Inventors:
HAIKAWA TOMOYUKI
OHNUMA YOUICHI
MINAMIDA TOMOATSU
OHNUMA YOUICHI
MINAMIDA TOMOATSU
Application Number:
PCT/JP2013/060367
Publication Date:
October 24, 2013
Filing Date:
April 04, 2013
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F24F11/02; F24F1/0063; F24F1/20
Foreign References:
| JPH09152168A | 1997-06-10 | |||
| JPH04203847A | 1992-07-24 | |||
| JP2012032108A | 2012-02-16 | |||
| JP2007040567A | 2007-02-15 | |||
| JPH0996452A | 1997-04-08 | |||
| JPH07332736A | 1995-12-22 | |||
| JP2009236346A | 2009-10-15 | |||
| JPH0914727A | 1997-01-17 |
Other References:
See also references of EP 2905553A4
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (JP)
梶 Yoshiyuki (JP)
梶 Yoshiyuki (JP)
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