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:
May. 23, 2017
Filed:
Sep. 17, 2013
Visteon Global Technologies, Inc., Van Buren Township, MI (US);
Peter Heyl, Cologne, DE;
Dirk Schroeder, Manching, DE;
Hans Hammer, Pfaffenhofen, DE;
Jorg Bodewig, Kerpen, DE;
HANON SYSTEMS, Daejeon-si, KR;
Abstract
The invention relates to a method for operating an air conditioner () for treating the air of a passenger compartment of a motor vehicle. The air conditioner () exhibits a refrigerant circuit () configured for a combined cooling unit and heat-pump mode and for a post-heating mode. In the heat-pump mode with a first and a second heat source, two heat sources differing from each other can be used. A temperature of the first heat source, a temperature of the second heat source, and a regulation characteristic number and a maximum pressure are taken into account in the refrigerant circuit () for operating the air conditioner () in a heat-pump mode. The invention additionally relates to a method for switching between the two heat-pump modes.