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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 10753662 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Oct. 25, 2016

Refrigeration apparatus

Applicant:

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

Inventors:

Takahiro Nakata, Osaka, JP;

Hiroshi Itou, Osaka, JP;

Assignee:

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

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Elizabeth J Martin

Assistant Examiner:

Nael N Babaa

Int. Cl.
CPC ...
F24F 11/89 (2018.01); F25B 49/02 (2006.01); F25B 47/02 (2006.01); F25B 13/00 (2006.01);
U.S. Cl.
CPC ...
F25B 49/022 (2013.01); F24F 11/89 (2018.01); F25B 47/02 (2013.01); F25B 47/025 (2013.01); F25B 13/00 (2013.01); F25B 2500/12 (2013.01); F25B 2600/022 (2013.01); F25B 2600/0253 (2013.01); F25B 2700/2103 (2013.01); F25B 2700/2104 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21151 (2013.01); F25B 2700/21173 (2013.01); Y02B 30/741 (2013.01);
Abstract

An air conditioner that is a refrigeration apparatus has, in a refrigerant circuit, a compressor, an outdoor heat exchanger that functions as an evaporator in a heating operation, an indoor heat exchanger that functions as a condenser in the heating operation, and a four way valve. The refrigerant circuit is configured in such a way that a high-pressure value of the refrigerant circuit in a defrost operation is lower than a high-pressure value of the refrigerant circuit in the heating operation. An end-of-defrost frequency decrease rate, which is a rate of decrease in the operating frequency of the compressor in the defrost operation, is set faster than a normal frequency decrease rate, which is a rate of decrease in the operating frequency of the compressor in the heating operation.

Find Patent Forward Citations

Nakata, Takahiro. (2020). Refrigeration apparatus (U.S. Patent No. 10753662). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10753662

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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