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A platform for research: civil engineering, architecture and urbanism
HONEYCOMB FILTER, AND HONEYCOMB FIRED BODY
PROBLEM TO BE SOLVED: To provide a honeycomb filter which has satisfactorily low pressure loss in such an initial state that PM (particulate matter) is not deposited thereon and which has satisfactorily high strength and deterioration of whose heat capacity can be suppressed.SOLUTION: The honeycomb filter is used for cleaning exhaust gas from a gasoline engine. A honeycomb fired body 10 includes a plurality of cells 20 and porous cell partition walls 30 for partitioning/forming the cells 20. The cell partition wall 30 to be connected to an outer peripheral wall of the honeycomb fired body 10 has such a thick wall area that the wall thickness becomes larger gradually as it goes toward the outer peripheral wall. An outer peripheral cell consists of: an outer peripheral exhaust gas introduction cell 21a, the exhaust gas inlet-side end 10a of which is opened and the exhaust gas outlet-side end 10b of which is plugged; and an outer peripheral exhaust gas discharge cell 21b, the exhaust gas outlet-side end 10b of which is opened and the exhaust gas inlet-side end 10a of which is plugged. An area of the cross section perpendicular to the longitudinal direction of the outer peripheral exhaust gas introduction cell 21a is made larger than that of the cross section perpendicular to the longitudinal direction of the outer peripheral exhaust gas discharge cell 21b.SELECTED DRAWING: Figure 2
【課題】ＰＭが堆積していない初期の状態での圧力損失が充分に低く、強度が充分に強く、熱容量の低下を抑制することができるハニカムフィルタを提供すること。【解決手段】ガソリンエンジンからの排ガスを浄化するハニカムフィルタであって、ハニカム焼成体１０は、複数のセル２０と、セル２０を区画形成する多孔質のセル隔壁３０とを備えており、ハニカム焼成体１０の外周壁と接続するセル隔壁３０は、上記外周壁に向かって壁厚が徐々に増す厚壁領域を有し、外周セルは、排ガス入口側の端部１０ａが開口されかつ排ガス出口側の端部１０ｂが封止された外周排ガス導入セル２１ａと、排ガス出口側の端部１０ｂが開口されかつ排ガス入口側の端部１０ａが封止された外周排ガス排出セル２１ｂとからなり、外周排ガス導入セル２１ａの長手方向に垂直方向の断面の面積は、外周排ガス排出セル２１ｂの長手方向に垂直方向の断面の面積よりも大きいハニカムフィルタ。【選択図】図２
HONEYCOMB FILTER, AND HONEYCOMB FIRED BODY
PROBLEM TO BE SOLVED: To provide a honeycomb filter which has satisfactorily low pressure loss in such an initial state that PM (particulate matter) is not deposited thereon and which has satisfactorily high strength and deterioration of whose heat capacity can be suppressed.SOLUTION: The honeycomb filter is used for cleaning exhaust gas from a gasoline engine. A honeycomb fired body 10 includes a plurality of cells 20 and porous cell partition walls 30 for partitioning/forming the cells 20. The cell partition wall 30 to be connected to an outer peripheral wall of the honeycomb fired body 10 has such a thick wall area that the wall thickness becomes larger gradually as it goes toward the outer peripheral wall. An outer peripheral cell consists of: an outer peripheral exhaust gas introduction cell 21a, the exhaust gas inlet-side end 10a of which is opened and the exhaust gas outlet-side end 10b of which is plugged; and an outer peripheral exhaust gas discharge cell 21b, the exhaust gas outlet-side end 10b of which is opened and the exhaust gas inlet-side end 10a of which is plugged. An area of the cross section perpendicular to the longitudinal direction of the outer peripheral exhaust gas introduction cell 21a is made larger than that of the cross section perpendicular to the longitudinal direction of the outer peripheral exhaust gas discharge cell 21b.SELECTED DRAWING: Figure 2
【課題】ＰＭが堆積していない初期の状態での圧力損失が充分に低く、強度が充分に強く、熱容量の低下を抑制することができるハニカムフィルタを提供すること。【解決手段】ガソリンエンジンからの排ガスを浄化するハニカムフィルタであって、ハニカム焼成体１０は、複数のセル２０と、セル２０を区画形成する多孔質のセル隔壁３０とを備えており、ハニカム焼成体１０の外周壁と接続するセル隔壁３０は、上記外周壁に向かって壁厚が徐々に増す厚壁領域を有し、外周セルは、排ガス入口側の端部１０ａが開口されかつ排ガス出口側の端部１０ｂが封止された外周排ガス導入セル２１ａと、排ガス出口側の端部１０ｂが開口されかつ排ガス入口側の端部１０ａが封止された外周排ガス排出セル２１ｂとからなり、外周排ガス導入セル２１ａの長手方向に垂直方向の断面の面積は、外周排ガス排出セル２１ｂの長手方向に垂直方向の断面の面積よりも大きいハニカムフィルタ。【選択図】図２
HONEYCOMB FILTER, AND HONEYCOMB FIRED BODY
ハニカムフィルタ及びハニカム焼成体
OKU KAZUTAKE (author)
2016-04-21
Patent
Electronic Resource
Japanese
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