F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
F28F 9/013 (2006.01)
Patent
CA 2227774
A heat exchanger coil (10) is comprised of plural metal tubes (12) of generally circular cross section, plural heat transfer enhancing fins (22) and plural relatively flat metal support plates (14, 16), each of which has plural first holes (18) and plural second holes (20) arranged in parallel rows. The second holes (20) have a smaller diameter than the first holes (18). The tubes (12) are laced through respective holes (18, 20) in the plates (14, 16) and through aligned holes in the fins (22) such that the tubes (12) extend generally at right angles to the respective planes of the plates (14, 16) and fins (22). In one embodiment, each plate (14, 16) is cut to define two discrete flexible sections (30, 32) and two resilient arms (58, 60) for flexibly coupling one of the sections (30) of each plate (14, 16) with a relatively fixed portion (96) of the corresponding plate (14, 16).
Un serpentin (10) d'échangeur de chaleur est constitué par plusieurs tubes métalliques (12) de section sensiblement circulaire, plusieurs ailettes (22) qui renforcent le transfert de chaleur et plusieurs plaques-supports métalliques relativement plates (14, 16) dont chacune présente plusieurs premiers trous (18) et plusieurs deuxièmes trous (20) disposés en rangées parallèles. Les deuxièmes trous (20) sont de plus faible diamètre que les premiers trous (18). Les tubes (12) passent dans des trous correspondants (18, 20) des plaques (14, 16) et dans des trous alignés des ailettes (22), de telle sorte que ces tubes (12) sont sensiblement à angle droit avec les plans respectifs des plaques (14, 16) et des ailettes (22). Dans un mode de réalisation, chaque plaque (14, 16) est coupée pour constituer deux parties flexibles discrètes (30, 32) et deux bras élastiques (58, 60) servant à relier de manière flexible l'une des parties (30) de chaque plaque (14, 16) à une partie relativement fixe (96) de la plaque correspondante (14, 16).
Heatcraft Inc.
Smart & Biggar
LandOfFree
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