Patent ID: 6536515
Filing Date: 2003-03-25
Classification: F28D

Abstract:
An evaporator foil stack, comprising:(a) at least a first media foil having an evaporator region and an outlet region; (b) at least a second media foil having an evaporator region, an outlet region, and a recess; and (c) an intermediate foil between the first and the second media foils, said intermediate foil having an opening in the outlet region of the first media foil and the recess in the second media foil, thereby forming a discharge region for a gaseous medium from the evaporator region of the at least first media foil, wherein a cross section through which flow occurs is larger over an entire width of the discharge region than over a length of the at least first and second media foils, and wherein the discharge region is arranged in a heated area of the foil stack.