Method of Producing a Heat Exchanger and a Heat Exchanger

Abstract

Method of producing a heat exchanger comprising a number of thin plates ( 8 ) of aluminum by processing at least a portion of the edges ( 16 ), at least the ends, into a thickness allowing, and joining the edges ( 16 ) of said plates ( 8 ) to provide channels between each pair of said plates, whereafter manifolds for delivering liquid to and from the channels are secured to the processed portions of the edges ( 16 ) by welding. As a result there is obtained a heat exchanger, which is more flexible and cheaper in production than previously known.

1 . A Method of producing a heat exchanger comprising a number of thin metal plates by processing at least a portion of the edges of said plates at the ends by folding into a thickness allowing a welding, and joining of the edges of said plates by welding to provide channels between each pair of said plates, whereafter manifolds for delivering liquid to and from the channels are secured by welding to the processed portions of the edges of the plates. 
     
     
         2 . The method according to  claim 1  characterized by the metal plates being composed of aluminum. 
     
     
         3 . The method according to  claim 1  characterized by the processing being performed by rolling the plates into a thickness allowing a welding. 
     
     
         4 . The method according to  claim 1  characterized by the plates further being pressed to provide a predetermined flow of liquid, preferably in a predetermined pattern, so as to provide an efficient heat transmission to the surrounding air flowing through the spaces between the channels. 
     
     
         5 . The method according to  claim 1  characterized by the edges of the plates being processed into a thickness, which is sufficient for joining the heat exchanger elements to endplates with a row of holes of substantially the same size as the inlets and outlets from the heat exchanger elements. 
     
     
         6 . The method according to  claim 1  characterized by the edges of the plates being processed into a thickness which is sufficient for joining the heat exchanger elements to inlet and outlet manifolds with a row of holes of the same size as the inlets and outlets from the heat exchanger elements.