Planar element for forming heat exchanger

Abstract

Planar element adapted to form, when stacked with a plurality of other such elements, a heat exchanger, comprising an inlet region, a first zone adapted to direct flow from the inlet region towards a second zone, a second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core, a third zone, adapted to direct flow from the second zone towards an outlet region and an outlet region, the planar element comprising a first blockage protrusion disposed along a first group of said side edges, the first group comprising at least a side edge adjacent to said outlet region, and a second blockage protrusion disposed along a second group of said side edges, the second group comprising at least a side edge adjacent to said inlet region.

1 . A planar element for forming, in combination with other planar elements assembled in a stack, a heat exchanger, said planar element comprising:
 an inlet region and an outlet region   a first array of mutually spaced enhanced counter flow heat exchange (ECFHE) protrusions downstream of said inlet region of said planar element; and   a second array of mutually spaced enhanced counter flow heat exchange (ECFHE) protrusions upstream of said outlet region of said planar element.   
     
     
         2 . The planar element according to  claim 1 , wherein each of said mutually spaced protrusions of said first array and/or of said second array has a tapered inlet end and a tapered outlet end.