Patent ID: 6669177
Filing Date: 2003-12-30
Classification: B01D,H01M,Y02E

Abstract:
A humidifying module comprising:a plurality of hollow fiber membranes grouped together to form a hollow fiber membrane bundle, wherein a moisture exchange is performed across a thickness of each hollow fiber membrane between fluid streaming within an interior of said each hollow fiber membrane and along an exterior of said each hollow fiber membrane; an inner flow passage inserted within said hollow fiber membrane bundle and along a longitudinal axis of said hollow fiber membrane bundle, wherein a total longitudinal length which said inner flow passage is inserted within said hollow fiber membrane bundle is shorter than a longitudinal length of said hollow fiber membrane bundle, and wherein said inner flow passage includes: an inlet and an outlet through which the fluid passes, and an end wall located proximate said outlet; and a protrusion disposed at said end wall and opposite a flow direction of the fluid streaming within said inner flow passage.