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. 31, 2021
Filed:
Jul. 12, 2018
Sanden Automotive Climate Systems Corporation, Isesaki, JP;
Sanden Automotive Climate Systems Corporation, Isesaki, JP;
Abstract
A vehicle air-conditioning device is provided which is capable of eliminating inconvenience due to a reduction in heating capability when changing from heat absorption from outdoor air to heat absorption from a heat medium. A heat-generating equipment temperature adjusting devicehas a heat medium heating heaterand a refrigerant-heat medium heat exchanger. The vehicle air-conditioning device has first and second heat medium heat absorption/heating modes to let a refrigerant discharged from a compressorradiate heat in a radiator, decompress the refrigerant from which the heat has been radiated, and then let the refrigerant absorb heat in the refrigerant-heat medium heat exchanger. When the temperature of the heat medium is a predetermined threshold Tor less upon changing from a heating operation to the first and second heat medium heat absorption/heating modes, the heat medium is heated by the heat medium heating heater before the changing.