EXHAUST GAS PURIFICATION DEVICE

An exhaust gas purification device that allows suppressing an increase in pressure loss is provided. The exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. The substrate includes a porous partition wall which defines inflo...

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Bibliographische Detailangaben
Hauptverfasser: SUGIURA, Koji, NOMURA, Yasutaka, MIYOSHI, Naoto, SATO, Akemi, ORI, Hirotaka, NAKASHIMA, Ryota, NISHIOKA, Hiromasa, IKEBE, Masatoshi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An exhaust gas purification device that allows suppressing an increase in pressure loss is provided. The exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. The substrate includes a porous partition wall which defines inflow cells and outflow cells extending from an inflow side end to an outflow side end. The inflow cell side catalyst layer is disposed on a surface on the inflow cell side in an inflow cell side catalyst region from an inflow side end to a position close to an outflow side end of the partition wall. The permeability of a portion including an outflow side region from the position to the outflow side end of the partition wall is higher than a gas permeability of a portion including the inflow cell side catalyst region of the partition wall and the inflow cell side catalyst layer.