Heat/acoustic wave conversion component and heat/acoustic wave conversion unit
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United States of America Patent
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Oct 3, 2017
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app pub date -
Nov 6, 2015
filing date -
Nov 11, 2014
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Abstract
A heat/acoustic wave conversion component includes a partition wall that defines a plurality of cells extending from a first end face to a second end face, and has a cell hydraulic diameter HD of 0.4 mm or less, an end face open frontal area of 60% or more and 93% or less, and heat capacity per unit length in the extending direction that tends to decrease with distance from the first end face. A first end portion on the first end face side that accounts for a region of 10% of a total length of the heat/acoustic wave conversion component has 1.1 times or more the heat capacity of that of a second end portion on the second end face side that accounts for a region of 10% of the total length.
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