发明名称 Exhaust gas purifying filter
摘要 There is disclosed an exhaust gas purifying filter of the present invention comprising a honeycomb structure formed of a porous ceramic material and including: a large number of through-holes 3 ; plugged portions 10 formed in one end portion of each of predetermined through-holes 3 and in the other end portion of each of remaining through-holes 3; and partition walls 2 partitioning the through-holes 3 and formed into filter layers, characterized in that a plugging length is non-uniform for each plugged portion 10 , and the filter has characteristics such as high porosity and thin wall while hardly causing defects such as chipping and falling-off of the plugged portions during packing, transporting, and handling.
申请公布号 US7297175(B2) 申请公布日期 2007.11.20
申请号 US20040506083 申请日期 2004.08.31
申请人 NGK INSULATORS, LTD. 发明人 MIWA SHINICHI
分类号 B01D46/00;F01N3/02;B01D39/14;B01D39/20;B01D46/24;B01D53/94;B01J35/04;B28B11/00;F01N3/022;F01N3/035 主分类号 B01D46/00
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