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:
Aug. 20, 2019
Filed:
Mar. 29, 2016
Johnson Controls—hitachi Air Conditioning Technology (Hong Kong) Limited, Hong Kong, CN;
Mikihito Tokudi, Tokyo, JP;
Kazuhiko Tani, Tokyo, JP;
Yoshiyuki Akiyama, Tokyo, JP;
Masami Inaba, Tokyo, JP;
Takafumi Ota, Tokyo, JP;
Hitachi-Johnson Controls Air Conditioning, Inc., Tokyo, JP;
Abstract
The air conditioner has a configuration such that, in an air-warming operation: the average refrigerant exit temperature, which is obtained by averaging the temperature of the refrigerant exits of indoor heat exchangersin a plurality of indoor units, as detected by heat-exchanger-refrigerant-exit temperature probesin the indoor units, is determined; the temperature difference between the average refrigerant exit temperature and the refrigerant exit temperatures of the indoor heat exchangersof each of the indoor unitsis determined; and the degree to which indoor expansion valvesof the indoor unitsare open is controlled such that the determined temperature difference falls within a predetermined temperature difference range.