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:
Jul. 10, 2018
Filed:
Nov. 07, 2013
Halla Visteon Climate Control Corp., Daejeon, KR;
Peter Heyl, Cologne, DE;
Tobias Haas, Cologne, DE;
Marc Graaf, Krefeld, DE;
Milan Moravek, Gbely, SK;
Jiri Dobner, Zadverice, CZ;
Jan Gregus-Kollar, Skalica, SK;
HANON SYSTEMS, Daejeon-si, KR;
Abstract
The present invention relates to the heat exchangerof refrigerant circuitry of an air-conditioning system for a vehicle, which enables a bidirectional pass flow. The air-conditioning system is configured to perform a combined operation of cooling device mode and heat pump mode, the heat exchangeris formed in the form of a multi-pass, and the flow direction of a refrigerant varies depending on operation mode. The first heat exchangerformed in the form of a multi-pass includes header pipesand, flow paths assigned to respective passes, and means configured to partition an internal volume space of one or more header pipesandinto independent regions. A first pass of the heat exchangerhas a greater flow cross section and greater heat exchange surface than the last pass.