EP 2047198 A1 20090415 - COOLING FLUID COOLER
Title (en)
COOLING FLUID COOLER
Title (de)
KÜHLFLÜSSIGKEITSKÜHLER
Title (fr)
REFROIDISSEUR POUR LIQUIDE DE REFROIDISSEMENT
Publication
Application
Priority
- EP 2008005065 W 20080624
- DE 102007033177 A 20070717
Abstract (en)
[origin: WO2009010155A1] The invention relates to a cooling fluid cooler for motor vehicles having a soldered cooling network (1) made of flat tubes (101) and ribs (102), produced from very thin aluminum sheets (a, b, c), and having header or loop-around chambers (3) at the ends of the flat tubes (101) for the cooling fluid flowing in the flat tubes (101), said chambers being cooled by cooling air flowing through the ribs (102). The cooling fluid cooler has exceptional cooling power and a light weight. This is achieved according to the invention in that each flat tube (101) is made of at least two formed sheet metal strips (a, b, c), wherein at least the one sheet metal strip (a, b) forms the wall of the flat tube and the other sheet metal strip forms a wavy internal insert (c) forming channels (10) in the same, and that the ratio of the constriction factor on the cooling fluid side to the constriction factor on the cooling air side is approximately in the range of 0.20 to 0.44, wherein the hydraulic diameter on the cooling fluid side is approximately in the range of 0.8 to 1.5 mm.
IPC 8 full level
F28D 1/03 (2006.01); F28D 1/053 (2006.01); F28F 1/02 (2006.01); F28F 1/12 (2006.01); F28F 3/02 (2006.01)
CPC (source: EP US)
F28D 1/0308 (2013.01 - EP US); F28D 1/05383 (2013.01 - EP US); F28F 1/02 (2013.01 - EP US); F28F 1/128 (2013.01 - EP US); F28F 1/40 (2013.01 - EP US); F28F 3/025 (2013.01 - EP US)
Citation (search report)
See references of WO 2009010155A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007033177 A1 20090122; BR PI0813528 A2 20141223; BR PI0813528 B1 20190205; CN 101755184 A 20100623; CN 101755184 B 20130123; EP 2047198 A1 20090415; EP 2047198 B1 20161026; US 2010218926 A1 20100902; US 8522862 B2 20130903; WO 2009010155 A1 20090122
DOCDB simple family (application)
DE 102007033177 A 20070717; BR PI0813528 A 20080624; CN 200880025070 A 20080624; EP 08759324 A 20080624; EP 2008005065 W 20080624; US 66926408 A 20080624