Heat exchanger with cast housing and method of making same

Details Heat exchanger with cast housing and method of making same Heat exchanger with cast housing and method of making same

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 9/12 (2006.01) B23P 15/26 (2006.01) F02M 25/07 (2006.01) F28D 9/00 (2006.01) F28F 9/26 (2006.01)

Patent

CA 2752753

A heat exchanger suitable for cooling exhaust gases and a method of making same are disclosed. The heat exchanger includes an outer casting member having first and second ends and forming a housing and a plurality of channel members forming alternating first and second flow channels for the flow of an exhaust gas through the first flow channels and coolant through the second flow channels. The channel members form a core having first and second ends, this core being mounted in the casting member. A first flange is fixedly attached to a first end of the core so as to form a sealed joint. A second flange is fixedly attached to the second end of the core so as to form another sealed joint. The first and second flanges are each coupled by fasteners to their respective ends of the casting.

L'invention concerne un échangeur de chaleur conçu pour refroidir les gaz d'échappement et son procédé de fabrication. L'échangeur de chaleur comprend un élément de coulée extérieur comprenant des première et seconde extrémités et formant un logement, et une pluralité d'éléments de canaux formant des premier et second canaux d'écoulement disposés en alternance pour l'écoulement d'un gaz d'échappement dans les premiers canaux d'écoulement et d'un liquide de refroidissement dans les seconds canaux d'écoulement. Les éléments de canaux forment une partie centrale comprenant des première et seconde extrémités, ladite partie centrale étant montée dans l'élément de coulée. Une première bride est raccordée de manière fixe à une première extrémité de la partie centrale afin de former un joint d'étanchéité. Une seconde bride est raccordée de manière fixe à la seconde extrémité de la partie centrale afin de former un autre joint d'étanchéité. Les première et seconde brides sont chacune accouplées au moyen d'éléments de fixation à leurs extrémités respectives de la coulée.

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