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:
May. 07, 2024
Filed:
Jan. 04, 2021
Daikin Industries, Ltd., Osaka, JP;
Daikin Europe N.v., Ostend, BE;
Satoshi Kawano, Osaka, JP;
Kyouji Araya, Plzen, CZ;
Kazuya Fukuda, Ostend, BE;
Ryuuichi Toyota, Osaka, JP;
Kazunari Fukagawa, Osaka, JP;
Makoto Inoue, Osaka, JP;
Natsuko Kitagawa, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
DAIKIN EUROPE N.V., Ostend, BE;
Abstract
A method monitors an air-conditioner having a semi-conductor gas sensor, the method including: determining that a refrigerant leakage has occurred on condition that the detection value is equal to or greater than a first threshold when the fan is in operation; starting operation of the fan as a provisional operation if the detection value is equal to or greater than a second threshold when the fan is not in operation; stopping the provisional operation of the fan; determining that a refrigerant leakage has occurred on condition that the detection value is equal to or greater than a third threshold after stopping the provisional operation of the fan; and taking a predetermined action for outputting alarm information and/or limiting supply of refrigerant to the heat exchanger when a refrigerant leakage is determined to have occurred.