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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.:

US 10281184 B1

PDFFull Text
Date of Patent:
May. 07, 2019

Filed:

Apr. 04, 2013

Air conditioner

Applicant:

Daikin Industries, Ltd., Osaka-shi, Osaka, JP;

Inventors:

Tomoyuki Haikawa, Kusatsu, JP;

Tomoatsu Minamida, Kusatsu, JP;

Assignee:

Daikin Industries, Ltd., Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Larry L Furdge

Int. Cl.
CPC ...
F25B 49/02 (2006.01); F25B 40/02 (2006.01); F25B 1/00 (2006.01); F25B 41/04 (2006.01); F25D 17/06 (2006.01); F25B 13/00 (2006.01); F24F 1/0059 (2019.01); F24F 140/50 (2018.01); F24F 11/65 (2018.01);
U.S. Cl.
CPC ...
F25B 49/022 (2013.01); F25B 1/005 (2013.01); F25B 40/02 (2013.01); F25B 41/043 (2013.01); F25D 17/06 (2013.01); F24F 1/0059 (2013.01); F24F 11/65 (2018.01); F24F 2140/50 (2018.01); F25B 13/00 (2013.01); F25B 2313/0234 (2013.01); F25B 2313/0314 (2013.01); F25B 2313/0315 (2013.01); F25B 2600/02 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/2104 (2013.01);
Abstract

Dehumidification cannot be performed when a load decreases. In an air conditioner of the present invention, an indoor heat exchanger includes an auxiliary heat exchangerand a main heat exchangerdisposed leeward from the auxiliary heat exchanger. In an operation in a predetermined dehumidification operation mode, a liquid refrigerant supplied to the auxiliary heat exchangerall evaporates midway in the auxiliary heat exchanger. Therefore, only an upstream partial area in the auxiliary heat exchangeris an evaporation region, while an area downstream of the evaporation region in the auxiliary heat exchangeris a superheat region. In the predetermined dehumidification operation mode, a compressor and an expansion valve are controlled so that the extent of the evaporation region of the auxiliary heat exchangervaries depending on the load.

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