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.

Date of Patent:
Dec. 17, 2019

Filed:

Dec. 20, 2016
Applicant:

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

Inventors:

Ryuuta Ohura, Osaka, JP;

Junya Minami, Osaka, JP;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 45/00 (2006.01); F25B 13/00 (2006.01);
U.S. Cl.
CPC ...
F25B 45/00 (2013.01); F25B 13/00 (2013.01); F25B 2313/0233 (2013.01); F25B 2345/003 (2013.01); F25B 2600/0253 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/21152 (2013.01); Y02B 30/741 (2013.01);
Abstract

When charging a refrigerant circuit with refrigerant, a control component starts a heating refrigerant charging operation that is performed by switching the refrigerant circuit to a heating cycle state and performs the heating refrigerant charging operation until a predetermined heating refrigerant charging completion condition is met. Thereafter, the control component switches to a cooling refrigerant charging operation that is performed by switching the refrigerant circuit to a cooling cycle state and performs the cooling refrigerant charging operation until a refrigerant charging completion condition where the refrigerant circuit is charged with a prescribed quantity of the refrigerant is met.


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