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. 21, 2002
Filed:
Apr. 20, 2001
Guenther Feuerecker, Stuttgart, DE;
Behr GmbH & Co., Stuttgart, DE;
Abstract
The invention relates to a device for cooling a vehicle interior with a secondary circuit ( ) for transferring the cold produced in an evaporator ( ) of a primary refrigerating circuit ( ) of a refrigerating unit ( ) by means of a refrigerating medium to at least one heat transfer device ( ) for cooling the air to be fed into the vehicle interior, the secondary circuit ( ) having a main circuit ( ) and an auxiliary circuit ( ) containing the heat transfer device ( ), which are coupled by a four-way valve ( ), by means of which an adjustable proportion of the flow of refrigerating medium can be diverted from the main circuit ( ) and fed into the auxiliary circuit ( ). In order to provide an improved device for cooling, in particular one that can be produced at a more reasonable cost, it is proposed that an inner heat exchanger ( ) should be provided in the auxiliary circuit ( ), allowing heat exchange to take place between a feed ( ) and a return ( ). This makes it possible to dispense with the use of a circulation pump in the auxiliary circuit.