WVT DESIGN FOR REDUCED MASS AND IMPROVED SEALING RELIABILITY

摘要

A membrane humidifier for a fuel cell system is disclosed wherein the membrane humidifier includes a plurality of membrane layers, a first pair of spaced apart sealing bars disposed between a first membrane layer and a second membrane layer adjacent to perimeter edges thereof to form a first flow channel, a second pair of spaced apart sealing bars disposed between the second membrane layer and a third membrane layer adjacent to perimeter edges thereof to form a second flow channel, and a plurality of supports, wherein a first support is disposed adjacent the second planar layer and extending between the second pair of spaced apart sealing bars, and a second support is disposed adjacent the third planar layer and extending between the second pair of spaced apart sealing bars.