EXHAUST PURIFYING FILTER

Provided is an exhaust purifying filter having high catalyst purification performance and particulate matter capturing performance while reducing pressure loss. A GPF 32 includes a filter substrate 320 in which a plurality of cells extending from an inflow-side end surface 32a to an outflow-side end...

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Bibliographische Detailangaben
Hauptverfasser: SEKI CHIAKI, MORI TAKESHI, WATANABE TAKAYUKI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:Provided is an exhaust purifying filter having high catalyst purification performance and particulate matter capturing performance while reducing pressure loss. A GPF 32 includes a filter substrate 320 in which a plurality of cells extending from an inflow-side end surface 32a to an outflow-side end surface 32b are partitioned and formed by a porous partition wall 323 and an inflow-side cell 321 in which an opening in the outflow-side end surface 32b is sealed and an outflow-side cell 322 in which an opening in the inflow-side end surface 32a is sealed are alternately disposed; and a TWC 33 which is carried on the partition wall 323, wherein a difference between a total volume of pores having pore diameters within a range of 0.1 micron to 10.7 micron in pore distribution of the GPF and a total volume of pores having pore diameters within a range of 0.1 to 10.7 micron in pore distribution of the filter substrate 320 is 0.015 ml/g to 0.06 ml/g. 本发明提供一种可减低压损并且具有高的催化剂净化性能及粒子状物质捕捉性能的排气净化过滤器。GPF(32),其包括:过滤器基材(320),