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Title:
Air-conditioner
Document Type and Number:
Japanese Patent JP6012756
Kind Code:
B2
Abstract:
A controller performs, during the heating operation, medium pressure control that controls the opening degree of a second expansion device based on a deviation between a target value of medium pressure, and a detection result of a medium pressure detector or a predicted value. During the heating operation and a cooling operation, the controller controls the opening degree of a third expansion device based on a target value of a discharge refrigerant temperature of a compressor or a target value related to the discharge refrigerant temperature, and a detection result of a discharge refrigerant temperature detector or a value related to the discharge refrigerant temperature computed using a detected detection result, and regulates a flow rate of refrigerant to supply to a suction side of the compressor via an injection pipe.

Inventors:
Ryomune Ishimura
Koji Yamashita
Norio Wakamoto
Naofumi Takenaka
Application Number:
JP2014548362A
Publication Date:
October 25, 2016
Filing Date:
November 21, 2012
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B13/00; F25B1/00
Domestic Patent References:
JPH05322348A1993-12-07
JPH085127A1996-01-12
JP2010271011A2010-12-02
JP2005147437A2005-06-09
JP2006112753A2006-04-27
JP2008267691A2008-11-06
JPH05322348A1993-12-07
JPH085127A1996-01-12
Foreign References:
WO2012104891A12012-08-09
WO2013111176A12013-08-01
WO2011117922A12011-09-29
WO2012104890A12012-08-09
WO2012104891A12012-08-09
WO2011117922A12011-09-29
Attorney, Agent or Firm:
Kiyoshi Yasushima
Takanashi Norio
Motoki Shandong
Murata Kensei
Moto Otani
Kentaro Yokoi



 
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