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To provide a honeycomb filter that is high in performance in capturing a PM and therefore can suppress pressure loss.SOLUTION: A honeycomb filter 10 is configured to comprise an exhaust gas introduction cell 12 whose end part at an inlet side is opened and whose end part at an outlet side is plugged, and an exhaust gas exhaust cell 11 whose end part at an outlet side is opened and whose end part at an inlet side is plugged, where a thickness of a cell bulkhead 14 is 0.1-0.25 mm. On a cross section which is perpendicular to a longitudinal direction of the honeycomb filter, when an average pitch width of a closed cell in a first direction D1 is defined as X1(mm) and an average value of a pitch width of the exhaust gas introduction cell 12 and an average value of pitch width of the exhaust gas exhaust cell 11 in the first direction D1 is defined as X2(mm), the average pitch width X1 of the closed cell is 0.5 mm or more and the following formula (1) is satisfied: -2X1+3≤X2/X1≤-20X1+18 (1).SELECTED DRAWING: Figure 2B
【課題】PMの捕集性能が高く、圧力損失を低く抑えることができるハニカムフィルタを提供する。【解決手段】入口側の端部が開口され、出口側の端部が目封止された排ガス導入セル12と、出口側の端部が開口され、入口側の端部が目封止された排ガス排出セル11とを備えてなるハニカムフィルタ10であって、セル隔壁14の厚さは、0.1~0.25mmであり、ハニカムフィルタの長手方向に垂直な断面において、第1方向D1における閉鎖セルの平均ピッチ幅をX1(mm)とし、第1方向D1における排ガス導入セル12のピッチ幅及び排ガス排出セル11のピッチ幅の平均値をX2(mm)とすると、上記閉鎖セルの平均ピッチ幅X1が0.5mm以上であり、下記(1)式を満たすことを特徴とするハニカムフィルタ。-2X1+3≦X2/X1≦-20X1+18・・・(1)【選択図】図2B
To provide a honeycomb filter that is high in performance in capturing a PM and therefore can suppress pressure loss.SOLUTION: A honeycomb filter 10 is configured to comprise an exhaust gas introduction cell 12 whose end part at an inlet side is opened and whose end part at an outlet side is plugged, and an exhaust gas exhaust cell 11 whose end part at an outlet side is opened and whose end part at an inlet side is plugged, where a thickness of a cell bulkhead 14 is 0.1-0.25 mm. On a cross section which is perpendicular to a longitudinal direction of the honeycomb filter, when an average pitch width of a closed cell in a first direction D1 is defined as X1(mm) and an average value of a pitch width of the exhaust gas introduction cell 12 and an average value of pitch width of the exhaust gas exhaust cell 11 in the first direction D1 is defined as X2(mm), the average pitch width X1 of the closed cell is 0.5 mm or more and the following formula (1) is satisfied: -2X1+3≤X2/X1≤-20X1+18 (1).SELECTED DRAWING: Figure 2B
【課題】PMの捕集性能が高く、圧力損失を低く抑えることができるハニカムフィルタを提供する。【解決手段】入口側の端部が開口され、出口側の端部が目封止された排ガス導入セル12と、出口側の端部が開口され、入口側の端部が目封止された排ガス排出セル11とを備えてなるハニカムフィルタ10であって、セル隔壁14の厚さは、0.1~0.25mmであり、ハニカムフィルタの長手方向に垂直な断面において、第1方向D1における閉鎖セルの平均ピッチ幅をX1(mm)とし、第1方向D1における排ガス導入セル12のピッチ幅及び排ガス排出セル11のピッチ幅の平均値をX2(mm)とすると、上記閉鎖セルの平均ピッチ幅X1が0.5mm以上であり、下記(1)式を満たすことを特徴とするハニカムフィルタ。-2X1+3≦X2/X1≦-20X1+18・・・(1)【選択図】図2B
HONEYCOMB FILTER
ハニカムフィルタ
MATSUKAWA YOSUKE (author)
2024-10-04
Patent
Electronic Resource
Japanese