Method of making internally finned hollow heat exchanger
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United States of America Patent
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Oct 22, 1991
Issued Date -
N/A
app pub date -
Oct 17, 1990
filing date -
Sep 8, 1987
priority date (Note) -
Expired
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Abstract
In a method of making a motor vehicle radiator, extruded hollow shapes of oval cross section provided inwardly with at least one longitudinally extending web lying transversely of the larger major axis of the oval cross section are reshaped, e.g. rolled, under pressure to a cross-sectional form of a flat profile tube having two parallel sides, soldered to cooling fins and fitted into a radiator housing. The extruded hollow shape is of light metal with a substantial oval cross section.
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