Importance

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Abstract

In a heat exchanger, when a lower surface of the first heat transfer tube is horizontal, in a vertical cross section perpendicular to a direction in which the first heat transfer tube passes through a first fin, upper surfaces of the first and second heat transfer tubes are inclined downward, an upper end of the second heat transfer tube is higher than the lower surface of the first heat transfer tube, and an intersecting point A at which an extension line of the upper surface of the second heat transfer tube and an extension line of the lower surface of the first heat transfer tube intersect is closer to the second heat transfer tube than is an intersecting point B at which the extension line of the upper surface of the second heat transfer tube and an extension line of a lower surface of the second heat transfer tube intersect.

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First Claim