New Ceramic Substrate with Gas Flow Control Functionality to Realize High Purification and Low Pressure Loss, Compact Catalyst Volu

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  • 高浄化と低圧損，小型化を実現する流速制御機能付き新規セラミック基材
  • コウジョウカ ト テイアツ ソン,コガタカ オ ジツゲン スル リュウソク セイギョ キノウ ツキ シンキ セラミック キザイ

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With the conflicting goals of achieving both a high purification level and low pressure loss, an attempt was made to control the flow velocity distribution by means of a new honeycomb structure (a compound cell structure having an inside area with a higher cell density and an outside area with a lower cell density). The catalyst utilization efficiency was maximized by optimizing the cell specifications of the inside and outside areas, and their effects under an actual usage environment were compared with conventional substrates, using actual vehicles and engines, and reported in this paper.

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