Patent ID: 6328100
Filing Date: 2001-12-11
Classification: F24H,F28D,F28F

Abstract:
A heat exchanger, preferably heat exchanger in heating installations, engine radiator, liquefier or condenser or evaporator, for motor vehicles with ribbed flat tubes, an internal heat exchange fluid communicating with the tube interior space via headers being admitted to the tube interior space of the flat tubes, a first header of which being arranged in the region of the first ends and a second header of which being arranged in the region of the second ends of the flat tubes,the internal heat exchange fluid can be admitted to the flat tubes in a sequence individually or in groups alternately at their first from the first header and at their second ends from the second header,the first header comprises a supply and a return of a first heat exchange fluid and the second header comprises a supply and a return of a second heat exchange fluid different from the first one, andthe ends of the flat tubes opposite to their header are provided with a U-shaped flow reverse in the flat tube such that the U-shape flow reverse has a partition defining at least one opening thereon for assisting in the flow reverse.