Ceramic filter and filter device
AssigneeNGK Insulators, Ltd.
InventorsNaomi Noda, Kanji Yamada
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Abstract
The present invention provides a ceramic filter to be used at a high temperature, and it contains a substance having preferential reactivity with an ash component contained in materials captured by the ceramic filter and not removed by a high temperature treatment such as combustion over the principal component of the ceramic filter; the reaction between said ash component being not removed by a high temperature treatment such as combustion of the filter and remaining accumulated and the filter component to cause melting of the filter being suppressed to attain a long period of service.
Claims31
A ceramic filter to be used at an elevated temperature, characterized in that a substance having preferential reactivity with an ash component contained in materials captured by the ceramic filter and not removed by a high temperature treatment such as combustion over the principal component of the ceramic filter.
A filter device, characterized by comprising at least a ceramic filter to be used at an elevated temperature, and a pre-filter being disposed upstream the ceramic filter and containing a substance having preferential reactivity with an ash component contained in the materials captured by the ceramic filter over the principal component of the ceramic filter, and not removed by the high temperature treatment such as combustion.
Dependencies are inferred from the claim text.