PLANAR ELEMENT FOR FORMING HEAT EXCHANGER
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 adapted to form, when stacked with a plurality of other such elements, a heat exchanger, the planar element comprising:
an inlet region;
a first zone;
a second zone;
a third zone;
an outlet region; and
side edges;
wherein
the first zone adapted to direct flow from the inlet region towards the second zone;
the second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core;
the third zone, adapted to direct flow from the second zone towards the outlet region.
2 . The planer element of claim 1 further comprising at least one first guiding protrusion adapted to guide the airflow within said first region from the inlet region.
3 . The planer element of claim 1 further comprising at least one second guiding protrusion adapted to guide the airflow within said third region toward the outlet region.
4 . The planer element of claim 1 further comprising at least one third protrusion is disposed in said first region and adapted to keep a defined gap between said planar element and a second planar element disposed adjacent to the planar element, in the inlet region.
5 . The planer element of claim 1 further comprising at least one fourth protrusion is disposed in said third region and adapted to keep a defined gap between said planar element and a second planar element disposed adjacent to said planar element, in the outlet region.
6 . The planer element of claim 1 further comprising at least one fifth protrusion disposed around said cutout adapted to keep a defined gap between said planar element and a second planar element disposed adjacent to the planar element, in the cutout region.
7 . The planar element of claim 1 further comprising at least a first set of relatively parallel protrusions adapted to guide the airflow within said first region.
8 . The planar element of claim 1 further comprising at least a second set of relatively parallel protrusions adapted to guide the airflow within said third region.
9 . The planar element according to claim 1 comprising an embossment selected from at least two different embossments.
10 . The planar element according to claim 9 wherein the two different embossments enable the planar element to be arranged when stacked in mutually interdigitated touching relationship with each other about the cutout.
11 . The planar element according to claim 12 wherein said planar element comprising protrusions on a first side cooperating with corresponding recesses on a second side of the differently embossed planar element, said planar element further comprising on a second side recesses cooperate with corresponding protrusions on a first side of the differently embossed planar element.
12 . A heat exchange assembly comprising a cooling core and a core-surrounding air flow pre-cooling and post heating assembly comprising a stack of planar elements, wherein the planar elements are as defined in claim 1 .
13 . A heat exchange assembly according to claim 12 wherein the planar elements are as defined in claim 9 , 10 or 11 , and the stack comprises differently embossed planar elements.