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:
Oct. 18, 2011
Filed:
Jul. 17, 2008
Roman Heckt, Aachen, DE;
Marc Graaf, Krefeld, DE;
Tobias Haas, Koeln, DE;
Visteon Global Technologies, Inc., Van Buren Township, MI (US);
Abstract
An air conditioning unit is disclosed for motor vehicles. The air conditioning unit includes with a compression refrigerant circuit where a refrigerant circulates, comprising comprehensively switched in series with respect to fluid flow at least one compressor upstream of a heat-delivering heat exchanger, and an expansion element upstream of a heat-absorbing heat exchanger, whereby into the flow path leading from the outlet of the heat-delivering heat exchanger to the expansion element an additional heat exchanger is integrated thermally coupled to at least one cooling means the temperature of which can be put to values below the temperature of the refrigerant in the compression refrigeration circuit at the position of the refrigerant's outflow from the heat-delivering heat exchanger, and a method for its operation.