Aluminum heat exchangers and method for producing the same

Details Aluminum heat exchangers and method for producing the same Aluminum heat exchangers and method for producing the same

1984-08-27

1988-01-05

Davis, Jr., Albert W.

Heat exchange

Radiator core type

Deformed sheet forms passages between side-by-side tube means

165905, F28D 102

Patent

active

047169591

ABSTRACT:
A serpentine-type aluminum heat exchanger comprising a serpentine-anfractuous flat tube of an aluminum alloy and a plurality of corrugated fin units made of an aluminum alloy having a high aluminum content of 99 wt. % or more, and joined to the flat tube by brazing metal coating layers fixed onto flat surfaces of parallel portions of the serpentine-anfractuous flat tube. The heat exchanger is produced by preparing the serpentine-anfractuous flat tube of an aluminum alloy, the corrugated fin units and foil plates of an aluminum alloy brazing filler metal, disposing the fin units in spaces between adjacent ones of parallel portions of the serpentine-anfractuous flat tube with foil plates being interposed between respective fin units and opposite parallel portions of the flat tube, and heating the flat tube, the fin units and foil plates in the assembled relation to the brazing temperature.

REFERENCES:
patent: 2778606 (1957-01-01), Lloyd et al.
patent: 3147800 (1964-09-01), Tadewald
patent: 3489448 (1970-01-01), Nagara et al.
patent: 3857164 (1974-12-01), Chartet
patent: 4214925 (1980-07-01), Arita et al.
patent: 4317484 (1982-03-01), Tanabe et al.
patent: 4410036 (1983-10-01), Kanada et al.

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