Heat exchanger and method of making heat exchangers

Details Heat exchanger and method of making heat exchangers Heat exchanger and method of making heat exchangers

1994-11-29

1996-10-08

Flanigan, Allen J.

Heat exchange

With repair or assembly means

165151, 297265, 29468, F28D 104, B21D 5308

Patent

active

055621538

ABSTRACT:
The invention relates to heat exchangers and methods of manufacturing heat exchangers. The heat exchanger includes a pair of tanks, each of which includes a plurality of connection holes aligned in substantially parallel rows, and a plurality of heat transfer tubes. The plurality of tubes fluidly interconnects between the pair of tanks by insertion into the tanks' connection holes. The method comprises the following steps: (1) inserting first ends of the heat transfer tubes through a plurality of assembly holes of an assembly plate, the assembly holes of the assembly plate are substantially identical to the connection holes of the tanks in number, pitch, and diameter; (2) placing the first ends of the heat transfer tubes which were inserted through the assembly holes of the one assembly plate on a first tank of the tanks; (3) sliding the assembly plate toward the first ends of the heat transfer tubes, so that the first ends of the heat transfer tubes are precisely aligned in rows corresponding to those of the first tank's connection holes; (4) simultaneously inserting the first ends of heat transfer tubes into the connecting holes of the first tank; (5) placing a second tank of the tanks on the second ends of the heat transfer tubes; (6) sliding the assembly plate toward the second ends of the heat transfer tubes, so that the second ends of the heat transfer tubes are precisely aligned in rows corresponding to those of the second tank's connection holes; (7) simultaneously inserting the second ends of the heat transfer tubes into the connection holes of the second tank; and (8) sealing the tanks to the heat transfer tubes with a brazing material. In heat exchangers manufactured according to this invention, the assembly plate may be connected to at least one of the tanks.

REFERENCES:
patent: 1903125 (1933-03-01), Modine
patent: 2180907 (1939-11-01), Neale et al.
patent: 2226243 (1940-12-01), Herz
patent: 2410140 (1946-10-01), Young
patent: 3310868 (1967-03-01), Laporte et al.
patent: 3868830 (1975-03-01), Fletcher et al.
patent: 4164064 (1979-08-01), Reavill
patent: 4279298 (1981-07-01), Lee
patent: 4601088 (1986-07-01), Kopczynski

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