The Trane Company

Abe G Whitehead

Alan G Butt

A method for joining two plate type heat exchanger core sections, previously brazed individually in intimate heat conducting relationship. The surfaces of the two heat exchanger core sections to be joined are non-planar as a result of brazing. In the method, the two core sections are stacked with their non-planar surfaces to be joined facing toward each other with an interposed layer comprising deformable metallic members. The deformable metallic members are subjected to a shear force causing them to be displaced to conform to the non-planar surfaces, substantially increasing the area over which they are in contact with these surfaces and thereby substantially increasing the heat conduction between the core sections. Closing members are thereafter inserted around the perimeter of the intermodular layer and joined to the heat exchanger core sections with a gas metal arc welding bead.

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Onalaska, WI, United States of America

Abe G Whitehead