Heat exchanger and a method and apparatus for the manufacture th

Details Heat exchanger and a method and apparatus for the manufacture th Heat exchanger and a method and apparatus for the manufacture th

1985-08-30

1987-09-15

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573A, 291573B, 29726, B21D 5302, B23P 1526

Patent

active

046929797

ABSTRACT:
The invention relates to a heat exchanger, especially for motor vehicles, which consists of a plurality of fins disposed in a parallel, spaced relationship, having openings and collars of oval or planar cross section adjoining the openings, and of a plurality of tubes of corresponding cross section disposed perpendicularly thereto and passing through the openings and collars. The tubes are joined to the fins by expanding their cross section after they have been inserted into the openings and collars thereby forcing their walls against the margins of the openings and collars.

REFERENCES:
patent: 2414159 (1947-01-01), Modine
patent: 2488627 (1949-11-01), Hisey
patent: 3603384 (1971-09-01), Huggins
patent: 3771595 (1973-11-01), Slaasted
patent: 4269267 (1981-05-01), Labrande
patent: 4570317 (1986-02-01), Veling et al.

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