Patent ID: 7992401

Claim:
An evaporator comprising a plurality of vertical flat heat exchange tubes arranged in a left-right direction at a spacing with the widthwise direction thereof pointing along a direction of passage of air, and corrugated fins arranged between respective adjacent pairs of heat exchange tubes and comprising a crest portion, a furrow portion and a connecting portion interconnecting the crest portion and the furrow portion, the connecting portion having a plurality of louvers arranged in parallel with each other along the direction of passage of air, wherein: the corrugated fins having leeward edges thereof projected outward in the leeward direction beyond a leeward end of the heat exchange tubes, all of said louvers are positioned in windward of the leeward end of the heat exchange tubes, and an end louver is positioned nearest to the leeward edge is at a distance of up to 1 mm from the leeward end of the heat exchange tubes.