Heat exchanger with oval or oblong tubes, and a method of assemb

Details Heat exchanger with oval or oblong tubes, and a method of assemb Heat exchanger with oval or oblong tubes, and a method of assemb

1996-10-31

1999-05-11

Lazarus, Ira S.

Heat exchange

Side-by-side tubular structures or tube sections

With manifold type header or header plate

165175, 165153, 138109, 29890044, 29890053, F28F9/02

Patent

active

059017848

ABSTRACT:
A heat exchanger, especially a heating or cooling radiator for a motor vehicle, has a tube bundle consisting of oval or oblong tubes which extend through a matrix of cooling fins. End portions of the tubes are introduced into holes in a header plate, with a compressible sealing gasket being interposed, the gasket having collar portions surrounding the tube end portions, and the latter having an oval or oblong cross section. The major axis of each tube end is equal to the major axis of the body of the tube, while the minor axis of the tube end is greater than the minor axis of the body of the tube as a result of the tube having been expanded or flared during the assembly of the heat exchanger.

REFERENCES:
patent: 3589440 (1971-06-01), Friedrich
patent: 4360060 (1982-11-01), Collgon
patent: 4401157 (1983-08-01), Cadars
patent: 4682650 (1987-07-01), Potier
patent: 5101561 (1992-04-01), Fuhrmann et al.
patent: 5123482 (1992-06-01), Abraham
patent: 5174372 (1992-12-01), Potier et al.
patent: 5355944 (1994-10-01), Potier
patent: 5456311 (1995-10-01), Knecht et al.
patent: 5490560 (1996-02-01), Helms et al.
patent: 5535821 (1996-07-01), Potier
patent: 5579832 (1996-12-01), Le Gauyer

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