Delphi Technologies, Inc.

Brian M Hartman

Karl Paul Kroetsch

Robert Charles Gmerek

Mark R Hammer

A heat exchanger assembly that addresses the thermal cycling problem to increase the durability of the heat exchanger core by fabricating at least the tube next adjacent to each of the reinforcing members with a cross section adjacent each of the headers including a radius having a partial maximum tube strain energy density and fabricating each of the reinforcing members with a connection section adjacent each of the headers having a reinforcement with a partial maximum strain energy density greater than the partial maximum strain energy density of the adjacent tube.

Heat exchanger design based on partial stain energy density ratio

A radiator core reinforcement self shears in the braze oven as strategically placed voids in the reinforcement erode away under the flowing action of the melted surface braze layer.

Method of making a brazed metal heat exchanger core with self-shearing reinforcement

A heat exchanger ( ) having a heat exchanger drain assembly ( ) comprising a manifold ( ) for storing fluid. A drain port ( ) is integrally formed with the manifold ( ) and is in selective fluid communication with the reservoir ( ) for selectively draining the fluid from the manifold ( ). A plug ( ) is disposed within the drain port ( ) for preventing fluid from draining from the manifold ( ). The plug ( ) is removable from the drain port (( ) for allowing fluid to drain from the manifold ( ). A frangible wall ( ) is formed between the drain port ( ) and the reservoir ( ) to close the drain port ( ) and create a non-functional drain port ( ), thereby preventing fluid communication between the drain port ( ) and the reservoir ( ). The frangible wall ( ) is fracturable to provide the fluid communication between the drain port ( ) and the reservoir ( ) for draining the fluid from the tank ( ).

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Lockport, NY, United States of America

Brian M Hartman