Patent ID: 8596341
Filing Date: 2013-12-03
Classification: F25B,F28D,Y02A,Y02B

Abstract:
1. A heat exchanger comprising: a structure having at least one wall that defines at least one channel, the channel containing a wick comprising plural layers that define at least two capillary flow passageways of differing capillary diameters, the capillary flow passageways configured to wick liquid at different rates whereby the liquid and the vapor are separated within the channel by the wick, and wherein the layers define offset, substantially planar surfaces, such that when adjacent layers are stacked together, the facing offset surfaces are spaced apart to form narrow capillary passages there between for the flow of the liquid along a direction which is coplanar with one of the adjacent layers, while larger diameter through passages defined in the layers form vapor passages permitting vapor flow within the same plane as the liquid flow.