Heat exchanger for an air-conditioning apparatus

Details Heat exchanger for an air-conditioning apparatus Heat exchanger for an air-conditioning apparatus

1987-07-07

1988-10-04

Koczo, Michael

Heat exchange

Radiator core type

Side-by-side tubes traversing fin means

165182, 165908, F28D 104

Patent

active

047750073

ABSTRACT:
A heat exchanger comprises a plurality of regularly corrugated fins placed one over another in layers at regular pitches in a back-to-back arrangement so as to form alternate wide and narrow fluid passage between the adjacent corrugated fins, and each having a plurality of small through holes, a plurality of collars formed in a staggered arrangement, and an annular area not having any small through hole and formed so as to surround the root of each collar; and pipes for passing a secondary fluid therethrough, each inserted through the collars of the layers of the corrugated fins. The height of the collar from the lower surface of the annular area corresponds to the pitch between the adjacent corrugated fins, and thereby the corrugated fins can be assembled at regular pitches simply by placing one over another. The pipes are expanded after being inserted through the collars so that the pipes are firmly and closely joined to the collars for satisfactory heat transmission between the fins and the pipes.

REFERENCES:
patent: 3796258 (1974-03-01), Mathotra et al.
patent: 3889745 (1975-06-01), Siemonsen
patent: 3902551 (1975-09-01), Lin et al.
patent: 4480684 (1984-11-01), Onishi et al.

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