FINE PARTICLE FILTER, METHOD FOR REMOVING PARTICULATE MATTER FROM EXHAUST GAS OF INTERNAL COMBUSTION ENGINE, AND METHOD FOR PRODUCING FINE PARTICLE FILTER
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United States of America Patent
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Issued Date -
Jan 11, 2024
app pub date -
Dec 1, 2021
filing date -
Dec 16, 2020
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Abstract
A fine particle filter for removing a particulate matter from exhaust gas of an internal combustion engine includes a wall-flow type filter that has a porous wall, and a ceramic layer that is made of ceramic particles and that is applied in a flow channel of the wall-flow type filter, wherein the ceramic layer has a porosity of 20% or more and 41% or less. The ceramic particles may be formed of one selected from the group consisting of alumina, silica, zirconia, ceria, titania, and zeolite.
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