The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 2016
Filed:
Apr. 01, 2013
Applicant:
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Inventors:
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 13/00 (2006.01); F25B 49/02 (2006.01); F24F 1/18 (2011.01); F25B 41/04 (2006.01);
U.S. Cl.
CPC ...
F25B 49/02 (2013.01); F24F 1/18 (2013.01); F25B 13/00 (2013.01); F25B 41/046 (2013.01); F25B 2313/005 (2013.01); F25B 2313/006 (2013.01); F25B 2313/0292 (2013.01); F25B 2313/0293 (2013.01); F25B 2313/0294 (2013.01); F25B 2313/02741 (2013.01); F25B 2313/0314 (2013.01); F25B 2313/0315 (2013.01); F25B 2400/19 (2013.01); F25B 2500/12 (2013.01); F25B 2600/0251 (2013.01); F25B 2600/2507 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/21151 (2013.01); F25B 2700/21152 (2013.01);
Abstract
An air conditioning apparatus has a refrigerant circuit in which a compressor, a four-way switching valve, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger are interconnected. The outdoor heat exchanger uses multi-hole flat tubes as heat transfer tubes. When stopping a heating operation, the air conditioning apparatus performs pressure equalization control that switches the four-way switching valve from a heating cycle state to a cooling cycle state, thereafter stops the compressor, and equalizes the pressure in the refrigerant circuit.