Patent ID: 6311768
Filing Date: 2001-11-06
Classification: F28D,F28F,Y10T

Abstract:
A heat exchanger comprising:a plurality of stacked plate pairs formed of mating plates having central planar portions and raised peripheral edge portions, said edge portions being joined together in mating plates to define a flow channel between the plates; the plates having offset end flanges, the respective flanges at each end of each plate pair diverging, the flanges having lateral edge portions extending from root areas located at the joined peripheral edge portions, the end flanges also having transverse distal edge portions joined together in back-to-back stacked plate pairs to space the plate pairs apart and form transverse flow passages between the plate pairs; the plate raised peripheral edge portions being formed with fingers spaced from said flange lateral edge portions to define slots; opposed U-shaped channels enclosing the respective end flanges of the plate pairs, the channels having rear walls spaced from the plate end flanges and side walls joined to the flange lateral edge portions, said side walls covering said root areas and being accommodated by said slots, the U-shaped channels having open ends; end plates closing the U-shaped channel open ends to form manifolds; and the manifolds defining inlet and outlet openings therein for the flow of fluid through the plate pairs.