SE0300204D0 - Extruded Fluid cooler - Google Patents

Abstract

A fluid cooler, preferably an oil cooler, comprising an elongated tank body (1) is manufactured by using at least one extruded element having a web of extending heat dissipating or emanating fins (2) on the exterior and/or the interior surface. When more than one extruded element the elements are assembled so that heat exchanging fins extend outwardly and inwardly of said tank body. The open ends of the tank body are sealed by welding lids to said ends, preferably using friction stir welding. The interior chamber of the cooler is subdivided into at least two sub-chambers by at least one integral dividing web (3). The dividing web increases the strength of the construction and is recessed from one end cap of the tank by a clearance space. A fluid inlet opens into one sub-chamber, remote from the clearance space, and a fluid outlet opens into the other sub-chamber, also remote from the clearance space. Coolant is conventionally forced to flow through finned exterior surface the cooler, sealed from the sub-chambers, but thermally exposed thereto across a common inner wall. Fluid fed into one of the sub-chambers is forced to follow an efficient, serpentine path that is an integer multiple of the total end to end length of the basic tank, enhancing conduction. The flexibility of the construction and the possibility of optimising the cooling effect for different needs as well as the leak-proof joints makes the fluid cooler superior to prior constructions.