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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 10684050 B1

PDFFull Text
Date of Patent:
Jun. 16, 2020

Filed:

Jan. 11, 2017

Refrigeration apparatus with defrost operation for parallel outdoor units

Applicant:

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

Inventors:

Ryuuta Ohura, Osaka, JP;

Takuya Kotani, Osaka, JP;

Junya Minami, Osaka, JP;

Assignee:

DAIKIN INDUSTRIES, LTD., Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Jonathan Bradford

Int. Cl.
CPC ...
F25B 47/02 (2006.01); F24F 11/89 (2018.01); F25B 13/00 (2006.01); F25B 49/02 (2006.01); F24F 11/88 (2018.01); F24F 11/42 (2018.01); F25B 41/04 (2006.01);
U.S. Cl.
CPC ...
F25B 47/02 (2013.01); F24F 11/42 (2018.01); F24F 11/88 (2018.01); F24F 11/89 (2018.01); F25B 13/00 (2013.01); F25B 41/04 (2013.01); F25B 47/025 (2013.01); F25B 49/02 (2013.01); F25B 49/027 (2013.01); F25B 2313/0233 (2013.01); F25B 2313/0251 (2013.01); F25B 2313/0292 (2013.01); F25B 2313/02531 (2013.01); F25B 2313/02533 (2013.01); F25B 2313/02542 (2013.01); F25B 2313/0315 (2013.01); F25B 2400/075 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21151 (2013.01); F25B 2700/21152 (2013.01);
Abstract

Provided is a refrigeration apparatus in which adverse events caused by excess refrigerant can be suppressed even when defrosting is performed with some of a plurality of outdoor units designated as units to be defrosted. An air-conditioning apparatus is configured from a parallel connection of a first outdoor unit and a second outdoor unit, wherein when a second outdoor heat exchanger of the second outdoor unit is caused to function as an evaporator while a first outdoor heat exchanger of the first outdoor unit is caused to function as a condenser to defrost the first outdoor heat exchanger, a refrigerant circuit has a flow channel that supplies some of the refrigerant flowing out of the first outdoor heat exchanger to the second outdoor heat exchanger and a flow channel that supplies the rest of the refrigerant flowing out of the first outdoor heat exchanger to an indoor heat exchanger.

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