Fin tube heat exchanger

Heat exchange – Radiator core type – Side-by-side tubes traversing fin means

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Details

165152, F28D 104

Patent

active

051179024

ABSTRACT:
A fin tube heat exchanger is used in an air conditioner or the like and comprised of a plurality of fin plates spaced at regular intervals in parallel with one another, a plurality of heat exchanger tubes arranged in at least one row and extending through the fin plates in a direction perpendicular to the direction in which the fin plates extend, a plurality of raised strips formed on each fin plate in a direction perpendicular to an air flow and raised out of their original plane, and at least one draining passage formed on each fin plate and extending along the center line of the row of the heat exchanger tubes. In this heat exchanger, air is allowed to flow between the fin plates whereas a fluid medium is allowed to pass in the heat exchanger tubes. Each raised strip has two leg portions inclined with respect to the direction of the air flow. Furthermore, the raised strips in one row near to a longitudinal edge of the fin plate are increased in number as compared with those in another row near to the center line of the row of the heat exchanger tubes. No raised strip is formed in the draining passage.

REFERENCES:
patent: 4691768 (1987-09-01), Obosu
patent: 4723599 (1988-02-01), Hanson
patent: 4723600 (1988-02-01), Yokoyama et al.
patent: 4787442 (1988-11-01), Esformes
patent: 4832117 (1989-05-01), Kato et al.
patent: 4907646 (1990-03-01), Aoyagi et al.

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