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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 12663188 B1

PDFFull Text
Date of Patent:
Jun. 23, 2026

Filed:

Jan. 31, 2024

Heat source unit and air conditioner

Applicant:

Daikin Industries, Ltd., Osaka, JP;

Inventors:

Takaya Nakanishi, Osaka, JP;

Yuta Fukuyama, Osaka, JP;

Assignee:

DAIKIN INDUSTRIES, LTD., Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Henry T Crenshaw

Int. Cl.
CPC ...
F25B 13/00 (2006.01); F25B 41/26 (2021.01); F25B 47/02 (2006.01);
U.S. Cl.
CPC ...
F25B 13/00 (2013.01); F25B 41/26 (2021.01); F25B 47/02 (2013.01);
Abstract

A heat source unit includes a first switching valve configured to switch between a first state where the first switching valve brings a high and low pressure gas connection pipe and a discharge side of a compressor into communication with each other and a second state where the first switching valve brings the high and low pressure gas connection pipe and a suction side of the compressor into communication with each other; and a second switching valve configured to switch between a third state where while the second switching valve brings the discharge side of the compressor and a gas end of a first heat exchange section into communication with each other, the second switching valve brings the suction side of the compressor and a gas end of the second heat exchange section into communication with each other and a fourth state where while the second switching valve brings the discharge side of the compressor and the gas end of the second heat exchange section into communication with each other, the second switching valve brings the suction side of the compressor and the gas end of the first heat exchange section into communication with each other.

Find Patent Forward Citations

Nakanishi, Takaya. (2026). Heat source unit and air conditioner (U.S. Patent No. 12663188). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12663188

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

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