Patent ID: 7788943
Filing Date: 2010-09-07
Classification: F25B,F25C,F28F

Abstract:
1. An apparatus for heat exchange, comprising: at least one fluid inlet; at least one fluid outlet; a first outer plate and a second outer plate; and an inner layer comprising an outer boundary portion and a corrugated sheet metal portion wherein the outer boundary portion surrounds the corrugated sheet metal portion, wherein the inner layer at least in part defines at least one flow path between the at least one fluid inlet and the at least one fluid outlet, wherein the at least one flow path is formed by a plurality of corrugations in the corrugated sheet metal portion, wherein the inner layer is sealingly sandwiched between the first and second outer plates and wherein each outer plate has an inner surface and an outer surface, and wherein the inner layer at least in part defines at least one series of fluid channels, and wherein each fluid channel is defined in part by the inner surface of one of the outer plates and by the inner layer, and wherein the at least one series of fluid channels makes up the at least one flow path and wherein the inner layer includes inner layer wall portions and inner layer foot portions of the corrugated sheet metal portion, wherein each foot portion engages one of the first and second outer plates, and wherein each channel is defined by two adjacent inner layer wall portions, one foot portion between the two adjacent wall portions and the other of the first and second outer plates.