Method of manufacturing a plate heat exchanger

Metal working – Method of mechanical manufacture – Heat exchanger or boiler making

Reexamination Certificate

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Details

C029S890030, C029S890039, C029S890054, C165S164000, C165S166000, C165S167000

Reexamination Certificate

active

07870671

ABSTRACT:
Brazed double wall plate heat exchangers are manufactured so that the double walls are connected and sealed to each other around port holes of the exchanger. This is obtained by providing areas that are shaped so as to include areas not covering each other. The brazing is provided by capillary suction of brazing material from other plate areas.

REFERENCES:
patent: 4099928 (1978-07-01), Norback
patent: 4592414 (1986-06-01), Beasley
patent: 5908070 (1999-06-01), Kato et al.
patent: 5913361 (1999-06-01), Engstrom et al.
patent: 2003/0121649 (2003-07-01), Seiler et al.
patent: 2 048 130 (1980-12-01), None
patent: 2 129 538 (1984-05-01), None
patent: 11-257758 (1999-09-01), None
patent: 2000-199643 (2000-07-01), None
patent: 2002-035929 (2002-02-01), None

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