Heat exchanger

F - Mech Eng,Light,Heat,Weapons – 24 – H

Patent

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Details

F24H 1/38 (2006.01) F24H 9/00 (2006.01) F28F 1/32 (2006.01) F28F 13/06 (2006.01)

Patent

CA 2729538

A heat exchanger (10) is manufactured from a single piece of heat-conducting material and comprises fins (20) for guiding a fluid and for transferring heat between the fluid and the heat exchanger, wherein between the fins are provided transverse fins (24) which extend in a direction substantially transversely of the fins over a distance which is less than the distance between the fins and in a direction substantially transversely of the flow direction of the fluid, wherein the transverse fins are arranged alternately close to or on mutually adjacent fins in order to cause a fluid flowing between the fins to follow a meandering path between the fins, wherein the lateral direction lies substantially perpendicularly of the fins.

La présente invention concerne un échangeur thermique qui est fabriqué dans un matériau thermoconducteur monobloc et qui comprend des ailettes servant à canaliser un fluide et à transférer la chaleur entre le fluide et l'échangeur thermique. Entre les ailettes, l'échangeur thermique comporte des ailettes transversales qui se présentent selon un axe sensiblement transversal par rapport à celui des ailettes, sur une distance qui est inférieure à la distance entre les ailettes, et dans un sens sensiblement transversal par rapport au sens d'écoulement du fluide. Les ailettes transversales sont disposées en alternance à proximité de ou sur des ailettes mutuellement adjacentes de façon à faire suivre au fluide coulant entre les ailettes un trajet en méandres entre les ailettes. L'axe latéral est sensiblement perpendiculaire aux ailettes.

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