Chromalloy American Corporation

Long Manufacturing Ltd.

Mccord Heat Transfer Corporation

Marvin D Beasley

Wayne G Blystone

Gerald W Lemmon

William T Shepard, Iii

Michael G Simpson

A heat exchanger core assembly having an improved tube-to-header joint construction wherein each individual tube end portion is preformed into a diamond-shaped configuration and each mating header plate is likewise preformed to include a plurality of diamond-shaped openings adaptable for receiving the corresponding diamond-shaped tube ends therethrough. Each tube member includes a body portion, a diamond-shaped end portion located at each opposite end thereof, and a gradual transition section which extends from each opposite end of the tube body portion to the respective diamond-shaped tube end portions. When mated together, each tube-to-header joint is bonded together such as by soldering or brazing. Each of the diamond-shaped openings in the mating header plates may also include an increased flange area extending at least partially therearound to improve the structural integrity and strength of the soldered or brazed joint between the tube end portions and the mating header plates.

Heat exchanger core construction utilizing a diamond-shaped

A heat exchanger construction of the plate and fin type comprising a plurality of plate assemblies joined together in a stackable arrangement, each plate assembly being formed by a pair of similar plate members placed in mating face-to-face relationship with each other to form a central flow region therebetween. Each plate member includes a header portion located respectively adjacent each opposite end thereof, each header portion having at least one pair of spaced openings adaptable for receiving and discharging a fluid medium therethrough. A raised partitioning or pass rib is positioned extending between the pair of spaced openings associated with one of the header portions and depending upon the positioning of the respective pass ribs relative to one another when each respective pair of plate members are joined together either a single-pass or a double-pass flow system is formed therebetween. Each plate member additionally includes spaced flange tabs arranged along the periphery thereof, the flange tabs being positioned and arranged so as to register with and engage untabbed edge portions of a similar plate member when placed in mating relationship therewith thereby forming a continuous sidewall therearound between the mated plate members regardless of whether the plate members are joined together to produce a single-pass or a double-pass flow arrangement.

Heat exchanger core construction utilizing a plate member adaptable for

A heat exchanger core assembly adaptable for allowing the passage of air therethrough comprising a plurality of fin elements extending in spaced apart parallel fashion across a plurality of fluid carrying tube members, each of the fin elements being positioned within the core assembly so as to have opposite side edges extending in a direction substantially parallel to the direction of air flow through the core assembly, each fin element including a folded over side portion extending along each of the opposite side edges thereof, the fin elements being stackable one upon the other such that the folded over side portions of one fin element mate with the folded over side portions of an adjacent fin element thereby forming a continuous, uninterrupted, substantially air tight core side on each opposite side of the plurality of mated together fin elements for substantially preventing the leakage of air therethrough. These folded over fin side portions may be configured to merely butt up against adjacent fins or to overlap and/or interlock therewith.

Growing community of inventors

Mount Vernon, IL, United States of America

Marvin D Beasley