Integrated collector-heat transfer unit

F - Mech Eng,Light,Heat,Weapons – 25 – B

Patent

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Details

F25B 43/00 (2006.01) B60H 1/32 (2006.01) F25B 40/00 (2006.01) F28D 7/02 (2006.01) F28D 7/04 (2006.01) F25B 9/00 (2006.01)

Patent

CA 2326558

The invention relates to an integrated collector-heat transfer unit, comprising a collector housing (1) in which a collector chamber (2) and a heat transfer unit having two separate heat transfer channels (5, 6) are located, said channels being disposed in thermal contact with one another, wherein one of the heat transfer channels (5) is part of a first flow channel extending from an inlet to an outlet in the housing of the collector and has a helical extension while the other heat transfer channel (6) is part of a second flow channel extending in-between the collector chamber and a connection of the housing. According to the invention, the second heat transfer channel (6) also has a helical extension, wherein the spirals thereof are in thermal contact with at least one adjacent spiral of the first heat transfer channel (5). Said unit can be used, for instance, in air conditioning systems for automobiles.

L'invention concerne une unité collecteur-échangeur de chaleur intégrée comportant un corps de collecteur (1) dans lequel se trouvent une chambre collectrice (2) et une unité d'échange de chaleur comportant deux canaux d'échange de chaleur (5, 6) en contact thermique. Un canal d'échange de chaleur (5) constitue une partie d'un premier canal d'écoulement s'étendant, de façon hélicoïdale, d'une entrée du corps à une sortie du corps, dans le corps de collecteur, et l'autre canal d'échange de chaleur (6), le second, constitue une partie d'un second canal d'écoulement qui s'étend entre la chambre collectrice et un raccordement du corps. Selon l'invention, le second canal d'échange de chaleur (6) s'étend également de façon hélicoïdale, ses spires étant respectivement en contact avec au moins une spire adjacente du premier canal d'échange de chaleur (5). Cette unité peut être utilisée, par exemple, dans des installations de climatisation pour véhicules automobiles.

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