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:
Jan. 23, 2024
Filed:
Aug. 06, 2018
Daikin Industries, Ltd., Osaka, JP;
Miki Yamada, Osaka, JP;
Junichi Shimoda, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
An air conditioning system has: an indoor fan that sends air into a room through an air-blowing flow path; a heat pump unit that air-conditions the room with a vapor compression refrigerant circuit; and a separate heat source unit that air-conditions the room with a furnace that heats air by burning fuel or an electric heater that heats air with heat generated by energization. As a refrigerant, a flammable refrigerant is sealed in the refrigerant circuit. A controller controls an operation of the indoor fan, the heat pump unit, and the separate heat source unit. When starting air conditioning in the room with the separate heat source unit, the controller brings a state where the indoor fan is in operation before causing an operation for burning fuel in the furnace.