Method of making a heat exchanger assembly with wrapped tubing

Details Method of making a heat exchanger assembly with wrapped tubing Method of making a heat exchanger assembly with wrapped tubing

1990-11-29

1992-03-31

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29407, 29890046, B21D 5300

Patent

active

050995740

ABSTRACT:
A method for forming a heat exchanger assembly including wrapping a one-piece heat exchanger tube onto a heat transfer unit having a plurality of fins on upper and lower surfaces, the fins being provided with notches which are aligned in sets with each set of notches receiving a section of the heat exchanger tube as it is wrapped around the heat transfer array, return bend portions of the heat exchanger tube being formed in the wrapping process to have a generally rectangular cross section to maximize the cross sectional area of the heat exchanger tube in the return bend areas of the tube.

REFERENCES:
patent: 2204613 (1940-06-01), Nelson et al.
patent: 3712372 (1973-01-01), Tranel
patent: 3780799 (1973-12-01), Pasternak
patent: 4241785 (1980-12-01), O'Connor et al.
patent: 4778004 (1988-10-01), Paulman et al.
patent: 4881311 (1989-11-01), Paulman et al.

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