A heat exchanger

Abstract

A heat exchanger comprising a tank (10) and a collector (30) assembled together, the tank (10) comprising a foot (11) and the collector (30) comprising a foot receiving surface (33), wherein the foot (11) comprises a groove (16) in which a gasket (20) is placed, and which groove (16) is faced by a foot receiving surface (33) so that together they form a closed cavity within the foot (11) defining a compression volume for the gasket (20), and wherein the foot (11) comprises a compression arrangement providing a filling rate δ of the compressed gasket (20) after assembly less than 100% of the compression volume.

1 . A heat exchanger comprising:
 a tank and a collector assembled together,   the tank comprising a foot and the collector comprising a foot receiving surface,   wherein the foot comprises a groove in which a gasket is placed, wherein the groove is faced by the foot receiving surface so that together they form a closed cavity within the foot defining a compression volume for the gasket, and   wherein the foot comprises a compression arrangement providing a filling rate of the compressed gasket after assembly less than 100% of the compression volume.   
     
     
         2 . A heat exchanger according to  claim 1 , wherein the compression arrangement providing the filling rate of the compressed gasket after assembly less than 90% of the compression volume. 
     
     
         3 . A heat exchanger according to  claim 1 , wherein the groove comprises two side walls and a bottom wall. 
     
     
         4 . A heat exchanger according to  claim 3 , wherein the collector comprises a side flange with crimping tabs crimped onto the foot so that the side walls press onto the foot receiving surface. 
     
     
         5 . A heat exchanger according to  claim 1 , wherein the compression arrangement is situated in the groove and comprises a first surface and a second surface, wherein the first surface is closer to the foot receiving surface than the second surface. 
     
     
         6 . A heat exchanger according to  claim 3 , wherein the compression arrangement is situated on the bottom wall of the groove. 
     
     
         7 . A heat exchanger according to  claim 3 , wherein the bottom wall of the groove comprises a protrusion, protruding towards the foot receiving surface, and a filling volume. 
     
     
         8 . A heat exchanger according to  claim 3 , wherein side walls of the groove have surfaces which are parallel to each other. 
     
     
         9 . A heat exchanger according to  claim 3 , wherein the side walls are flat. 
     
     
         10 . A heat exchanger according to  claim 7 , wherein the filling volume is divided by the protrusion along the bottom wall of the groove. 
     
     
         11 . A heat exchanger according to  claim 1 , wherein the compression arrangement is a separate element attached to the bottom of the groove in the tanks foot. 
     
     
         12 . A heat exchanger according to  claim 11 , wherein the compression arrangement complements the shape of the bottom wall and/or the side walls of the groove in which the compression arrangement is placed. 
     
     
         13 . A heat exchanger, comprising:
 a tank comprising a foot;   a collector comprising a corresponding foot receiving surface; and   a gasket positioned in between the tank and the collector,   wherein the tank and the collector are assembled together and are immobilized with respect to each other so that a desired compression of the gasket is provided,   the foot receiving surface being U-shaped over at least part of a periphery of the collector and comprising a base, an outer flange and an inner flange connected to the base, and   wherein foot of the tank comprises a groove for placement of the gasket, which is incorporated to provide sealing.