Manifold incorporating baffles and method of manufacturing same

Details Manifold incorporating baffles and method of manufacturing same Manifold incorporating baffles and method of manufacturing same

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 9/02 (2006.01) F28F 9/00 (2006.01) F28F 9/16 (2006.01) F28F 9/22 (2006.01)

Patent

CA 2287343

A manifold (12) for heat exchangers with a manifold segment (14) having longitudinal spaced slots (20-26) for receiving flat tubes (50-56) separated by webs (30-34). The webs (30-34) each have a pair of depressions (90a, 90b-94a, 94b) to strengthen the material on each side of each relatively flat web (30-34) such that the cross section of the manifold segment (14) has a generally D-shaped profile. At least one baffle (70) is inserted in the manifold segment (14), centered between a pair of adjacent slots (20-26). The baffle (70) has a principle circular edge (70a) and a truncated edge (70b) to correspond to the approximately D-shaped profile of the manifold segment (14) and an outwardly extending lip (72) over a portion of its perimeter at the principle circular edge (70a). The lip (72) has projections (72b) extending from its ends, dimensioned to provide an interference fit between the baffle (70) and the manifold segment (14).

L'invention concerne un collecteur (12) poour échangeurs thermiques, comprenant un segment collecteur (14) à fentes espacées longitudinalement (20-26) recevant des tubes plats (50-56) séparés par des bandes (30-34), lesquelles ont chacune une paire de dépressions (90a, 90b-94a, 94b) pour renforcer le matériau de part et d'autre de chaque bande relativement plate (30-34), conférant ainsi à la section transversale dudit segment collecteur (14) un profil généralement en forme de D. Au moins une chicane (70) se trouve dans ce segment (14), centrée entre une paire de fentes adjacentes (20-26). La chicane (70) a une bordure circulaire principale (70a) et une bordure tronquée (70b) correspondant au profil approximativement en forme de D du segment collecteur (14), et aussi une lèvre s'étendant vers l'extérieur (72) qui recouvre une partie de son périmètre à la bordure circulaire principale (70a). La lèvre (72) a des parties qui font saillie (72b) aux extrémités, de manière à établir un ajustement serré entre la chicane (70) et le segment collecteur (14).

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