Inlet and outlet union mechanisms of a heat exchanger

Details Inlet and outlet union mechanisms of a heat exchanger Inlet and outlet union mechanisms of a heat exchanger

1996-06-06

1998-01-27

Rivell, John

Heat exchange

Tubular structure

With support or flow connector

165175, 165153, 285 93, F28F 904

Patent

active

057113700

ABSTRACT:
A heat exchanger for conducting a fluid comprises a plurality of heat transfer tubes, a plurality of fins sandwiched by the heat transfer tubes, and first and second header pipes fixedly and hermetically mounted to the heat transfer tubes. A pair of union joint devices are disposed in the first and second header pipes respectively. Each of the union joint devices comprises a brazed area wherein one end of a fluid passage disposed therein is brazed to a hole formed on the header pipe. A space is created around the brazed area for observing a condition of brazing and insuring a flux therein. Thereby, the heat exchanger has completely hermetic connections between the union joint and header pipes and is easily examined by an operator to detect any improper brazing between the union joint and the header pipes.

REFERENCES:
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patent: 5186246 (1993-02-01), Halstead
patent: 5186248 (1993-02-01), Halstead
patent: 5209290 (1993-05-01), Chigira
patent: 5228727 (1993-07-01), Tokutake et al.
patent: 5240068 (1993-08-01), Tokutake
patent: 5346003 (1994-09-01), Halstead et al.
patent: 5419042 (1995-05-01), Kado
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European Search Report, completed Sep. 6, 1996, The Hague.

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