Patent ID: 8453721

Claim:
A stacked plate heat exchanger, comprising: a core having an outer periphery and a longitudinal axis; a shell having an inner periphery and at least partially surrounding the core to define a fluid gap between the shell and the core; and a seal disposed between the shell and the core to at least partially divide the fluid gap into an inlet chamber and an outlet chamber, wherein the seal comprises: a core portion having a core base positioned adjacent to the periphery of the core and at least one core fin projecting radially outwardly with respect to the core and having at least one core fixed end attached to the core base and at least one core free end spaced from the base; at least one shell fin projecting radially inwardly with respect to the shell and having at least one shell fixed end located adjacent to the inner periphery of the shell and at least one shell free end spaced from the inner periphery of the shell, and being interleaved with the at least one core fin, wherein the core and shell do not move relative to each other once assembled and the seal extends along only a portion of the fluid gap between the shell and core so that fluid may flow within the fluid gap around a least a portion of the periphery of the core without obstruction by the seal; and at least one insert disposed between the core base and the core to limit fluid flow between the core and the core base, and wherein the core base is semi-cylindrical and includes longitudinally extending sides and at least one additional core fin projecting radially outwardly with respect to the core and having at least one fixed end proximate the outer periphery of the core and at least one free end distal the outer periphery of the core.