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  • Summary & Details

Improvement of performance of catalyst-coated gasoline particulate filter by controlling catalyst density

触媒密度の設計によるガソリン用パティキュレートフィルタの高性能化

Detailed Information

Category(J)論文

Translation

Category(E)Paper
Author(J)1) 滝沢 知也, 2) 栗田 寛之, 3) 荒木 崇至, 4) 酒井 康平, 5) 村上 浩
Author(E)1) Tomoya Takizawa, 2) Hiroyuki Kurita, 3) Takashi Araki, 4) Kohei Sakai, 5) Hiroshi Murakami
Affiliation(J)1) マツダ株式会社, 2) マツダ株式会社, 3) マツダ株式会社, 4) マツダ株式会社, 5) マツダ株式会社
Abstract(J)初期PN捕集効率,圧力損失,及び三元浄化機能を両立した触媒担持型ガソリン用パティキュレートフィルタ(4way-GPF)の設計指針の導出を目的として,高分解能3D X線顕微鏡から構築した3次元構造モデルを用いたガス流れシミュレーションと実験による検討を実施した.

Translation

Abstract(E)This research aimed to improve PN filtration efficiency and catalytic performance of 4way-GPF without worsening pressure drop. Adding PN filtration layer made of three-way catalyst on substrate improves PN filtration performance and catalyst performance, but the deterioration of pressure drop becomes an issue. In this report, we clarified that designing catalyst density is effective in suppressing the deterioration of pressure drop. Finally, we proposed the design concept for 4way-GPF with higher PN filtration, higher catalytic performance and lower pressure drop.

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