Heat exchanger

Details Heat exchanger Heat exchanger

F - Mech Eng,Light,Heat,Weapons

28

D

257/24, 257/27

F28D 1/00 (2006.01)

Patent

CA 1235687

ABSTRACT OF THE DISCLOSURE An evaporator for refrigeration devices comprises a serpentine tube bundle having a plurality of spaced-apart parallel fins. The tube bundle is arranged to provide sets of tubes in a staggered arrangement to increase the number of tube passes for the height of the evaporator and space the tubes apart to improve efficiency of air flow patterns over the tubes to enhance heat transfer. The fins are made of ultra-thin material of a thickness less than 0.20 millimeters. The fins have an embossed pattern to reinforce the fins through which the tubes extend in appropriately shaped apertures. Due to the thinness of the fins, portions of the fin walls are displaced by inserting the tubes in the apertures to ensure metal to metal contact between the fin and the tubes. The embossed pattern is such to induce turbulence in the air flowing over the fins and tubes to considerably increase the efficiency of the evaporator unit.

464335

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