Abstract An air-cooled radiator core is described comprising a plurality of welded or soldered-together core elements. Each core element is fabricated of an elongated seamless loop of flat metal formed along its length with 90 degree out of phase sinuous side portions outwardly flanged along each edge, the sinuous side portions being in mutual abutment at out of phase node portions. Adjacent core elements are fitted flange-edge to flange-edge to define a honeycomb effect of core openings for the passage of cooling air; and abutting flanges are soldered or welded together along their outer edges to provide sinuous coolant flow paths between mutually adjacent core elements. In a modified form of the invention flat ribbons of sheet metal are folded back and forth along their lengths in a modulated pattern of such shape along their lengths as to fit snugly within and along the honeycomb openings to increase radiating surface areas and thereby improve the efficiency of air cooling action of a radiator core.
In a radiator core heat exchange structure adapted for use in radiators or the like comprising a plurality of tubular elements and fin elements in interfitting relationship, each tubular element being in the form of an elongated loop of substantially flat metal having opposed sinuous side portions mutually 90 degrees out of phase and having a plurality of mutually abutting out of phase node portions, each sinuous side portion being formed with laterally-opposed, outwardly projecting, substantially parallel sinuous flanges, mutually adjacent ones of said fin elements being arranged in flange-edge to flange-edge disposition to define a honeycomb-effect of core openings for the passage of cooling air and sinuous coolant flow paths between mutually adjacent tubular elements, said fin strips comprising side-to-side, reversely-bent portions within and along the openings of said honeycomb core openings to radiating surface areas and thereby increase heat exchange efficiency, wherein said core elements are secured together along the interfitting junctures of said flange edges by a welded seam, such that said core elements are additionally secured together by spotwelds between said mutually-abutting node portions, said opposed sinuous side portions of said core elements being substantially sinusoidal along their lengths.
Claim 2
Dependent Claim
193 words
In a radiator core heat exchange structure adapted for use in radiators or the like comprising a plurality of tubular elements and fin elements in interfitting relationship, each tubular element being in the form of an elongated loop of substantially flat metal having opposed sinuous side portions mutually 90 degrees out of phase and having a plurality of mutually abutting out of phase node portions, each sinuous side portion being formed with laterally-opposed, outwardly projecting, substantially parallel sinuous flanges, mutually adjacent ones of said fin elements being arranged in flange-edge to flange-edge disposition to define a honeycomb-effect of core openings for the passage of cooling air and sinuous coolant flow paths between mutually adjacent tubular elements, said fin strips comprising side-to-side, reversely-bent portions within and along the openings of said honeycomb core openings to radiating surface areas and thereby increase heat exchange efficiency, wherein said core elements are secured together along the interfitting junctures of said flange edges by a welded seam, such that said core elements are additionally secured together by spotwelds between said mutually-abutting node portions, said opposed sinuous side portions of said core elements being substantially sinusoidal along their lengths.