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:
Sep. 03, 2019
Filed:
Dec. 08, 2015
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
In an air conditioning apparatus, an expansion valve is determined to be in a fully closed state when a refrigerant temperature in an outlet of an indoor heat exchanger and a refrigerant temperature in an inlet or an intermediate part of the indoor heat exchanger satisfy a closed-valve condition. The temperature in the outlet is detected by a gas-side temperature sensor. The temperature in the inlet or the intermediate part is detected by a liquid-side temperature sensor. The closed-valve condition is in relation to a refrigerant evaporation temperature obtained by converting a refrigerant pressure in an intake side of a compressor to a refrigerant saturation temperature, and in relation to an air temperature of an air-conditioned space cooled by the indoor heat exchanger. The pressure in the intake side is detected by an intake pressure sensor. The air temperature is detected by an indoor temperature sensor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile