Heat exchange – Radiator core type – Deformed sheet forms passages between side-by-side tube means
Patent
1994-05-31
1997-06-03
Rivell, John
Heat exchange
Radiator core type
Deformed sheet forms passages between side-by-side tube means
165176, 165175, F28D 102
Patent
active
056345186
ABSTRACT:
A flat plate type heat exchanger or evaporator is disclosed for use in automobile air conditioning systems. The heat exchanger includes a set of stacked plate pairs having refrigerant fluid passageways extending laterally between the plates of each plate pair while the spaces between the plate pairs define air flow passageways having fins located therein. In one aspect, fluid inlet and outlet passages are formed when differently sized tubes in adjacent plate pairs are telescoped together and subsequently brazed together to form a high surface area, fluid tight joint. The resulting fluid tight joint formed between tubes in adjacent plate pairs exhibits greater rupture resistance than that formed with drawn cup assemblies currently in use. These refrigerant fluid inlet and outlet passageways are spaced inwardly from the edges of the evaporator and extend transversely through the stack, the inlet and outlet passages being in communication with the fluid passageways.
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Atkinson Christopher
Long Manufacturing Ltd.
Rivell John
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