Heat exchanger and water heater
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United States of America Patent
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-
Nov 28, 2017
Grant Date -
Jul 10, 2014
app pub date -
Dec 6, 2013
filing date -
Jan 10, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A fin includes a cut and raised slit and a cut and raised wall portion. The cut and raised slit is formed in a region adjacent to at least one through hole of a plurality of through holes in a first direction and has a tunnel-shaped hole extending in a second direction intersecting the first direction. The cut and raised wall portion is located in the second direction of the cut and raised slit, protrudes toward a main surface of the fin, and extends along the first direction. Thus, a heat exchanger and a water heater capable of sufficiently conducting an amount of heat of a combustion gas to a heat conduction pipe even in a blind spot of a flow of the combustion gas of the heat conduction pipe and suppressing noise can be realized.
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