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. 24, 2019
Filed:
Sep. 18, 2015
Sanden Holdings Corporation, Isesaki-shi, Gunma, JP;
SANDEN HOLDINGS CORPORATION, Isesaki-shi, Gunma, JP;
Abstract
There is disclosed a vehicle air-conditioning device in which a refrigerant subcool degree in a radiator is appropriately controlled, so that comfortable and efficient vehicle interior air conditioning is achievable. The vehicle air-conditioning device executes a heating mode in which a controller lets a refrigerant discharged from a compressorradiate heat in a radiator, decompresses the refrigerant by which heat has been radiated by an outdoor expansion valve, and then lets the refrigerant absorb heat in an outdoor heat exchanger. In the heating mode, the vehicle air-conditioning device controls a refrigerant subcool degree SC of the radiatorby the outdoor expansion valve. On a basis of a radiator inlet air temperature THin that is a temperature of the air flowing into the radiator, the controller corrects a target subcool degree TGSC that is a target value of the refrigerant subcool degree SC in the radiatorin a lowering direction, as the radiator inlet air temperature THin rises.