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. 07, 2020
Filed:
Jun. 01, 2016
Sanden Automotive Climate Systems Corporation, Isesaki-shi, JP;
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION, Gunma, JP;
Abstract
Vehicular air-conditioning device capable of inhibiting liquid return and generation of noise in an accumulator on startup of a compressor, and improving reliability and comfort. A controller lets a refrigerant discharged from a compressorradiate heat in a radiator, and decompresses the refrigerant from which the heat has been radiated, to let the refrigerant absorb heat in an outdoor heat exchanger, thereby heating a vehicle interior. On startup of the compressor, the controller continues an operation at a predetermined startup number of revolution for a predetermined time, and then raises a number of revolution of the compressorto a predetermined target number of revolution at a predetermined rising speed, and changes the startup number of revolution of the compressorso as to lower the startup number of revolution as the outdoor air temperature is higher, on the basis of an outdoor air temperature.