Louver fin evaporator

摘要

An evaporator comprising a plurality of heat transfer fins arranged mutually parallelly relative to the direction of air current and a multiplicity of louver boards formed by cuts inserted in substrates of said heat transfer fins perpendicularly to the direction of air current and sloped to prescribed angles from said substrates so as to be divided into a plurality of louver groups by the direction of sloping, which evaporator has the louver at the downstream zone of the fins in the direction of air current sloped so that the flow of the water condensate by gravity directs to the direction of an interior of the evaporator.