Gm Global Technolgoy Operations, Inc.

Glenn W Shaffer

Gary A Halstead

Shrikant M Joshi

Richard P Ryan

David M Smith

A heat exchanger apparatus includes a pair of tank units for containing a fluid, such as an engine coolant, or freon, each including a header having a plurality of slots for receiving a plurality of parallel fluid flow tubes in fluid communication between the tanks. Air centers are connected between the parallel fluid flow tubes for directing an inlet air stream of the vehicle. Side plates are secured between the ends of the headers to protect and provide rigidity to the heat exchanger. Interlocking members are provided between the headers and sideplates for interlocking same to one another during the brazing process.

Heat exchanger sideplate interlocked with header

A heat exchanger assembly has a pair of spaced extruded tanks and a tube and header subassembly including a pair of header plates on opposite ends of a plurality of spaced parallel tubes. The extruded tanks include stop surfaces thereon for locating the subassembly within the extruded tanks and the extruded tanks further include a pair of seal ribs and a pair of deformable side flanges defining a pocket for receiving flux material to secure the subassembly to the extruded tanks without exposing the flux material to the interior of the extruded tanks.

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Middleport, NY, United States of America

Glenn W Shaffer