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.:
Date of Patent:
Oct. 17, 2023
Filed:
Apr. 20, 2023
Daikin Industries, Ltd., Osaka, JP;
Shuichi Taguchi, Osaka, JP;
Masaaki Takegami, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A refrigeration apparatus () includes a heat-source-side unit () using a refrigerant that works in a supercritical region. The heat-source-side unit () includes a compression element () configured to compress the refrigerant, a heat-source-side heat exchanger (), an expansion valve () provided downstream of the heat-source-side heat exchanger (), a receiver () provided downstream of the expansion valve (), and a control unit (). The control unit () performs a first operation for evaluating the amount of the refrigerant based on a high-pressure-side pressure, on a first condition that the internal pressure of the receiver () be equal to or less than a supercritical pressure.