A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide an exhaust gas purification filter capable of suppressing an increase in pressure loss due to ash deposition.SOLUTION: There is provided an exhaust gas purification filter 1 which has a plurality of cells 11 extending in the filter axial direction (X), a porous partition wall 12 for partitioning and forming the plurality of cells 11 and a sealing unit 13 for alternatingly sealing the plurality of cells 11 at both filter ends. In the exhaust gas purification filter 1, the partition wall 12 is arranged such that the total value of a void volume Vvv of a protrusion valley section 123 and a material volume Vmp of a protrusion peak section 124, which are volume parameters of the surface of the partition wall 12 obtained by non-contact surface roughness measurement, is more than 1.8 μm3/μm2 or less.SELECTED DRAWING: Figure 5
【課題】灰分堆積による圧損上昇を抑制することが可能な排ガス浄化フィルタを提供する。【解決手段】排ガス浄化フィルタ１は、フィルタ軸方向Ｘに延びる複数のセル１１と、複数のセル１１を区画形成する多孔質の隔壁１２と、フィルタ両端部において複数のセル１１を交互に目封じする封止部１３と、を有する。排ガス浄化フィルタ１において、隔壁１２は、非接触式の面粗さ測定による隔壁１２表面の体積パラメータである突出谷部１２３の空間体積Ｖｖｖおよび突出山部１２４の実体体積Ｖｍｐの合計値が、１．８μｍ３／μｍ２以下とされている。【選択図】図５
To provide an exhaust gas purification filter capable of suppressing an increase in pressure loss due to ash deposition.SOLUTION: There is provided an exhaust gas purification filter 1 which has a plurality of cells 11 extending in the filter axial direction (X), a porous partition wall 12 for partitioning and forming the plurality of cells 11 and a sealing unit 13 for alternatingly sealing the plurality of cells 11 at both filter ends. In the exhaust gas purification filter 1, the partition wall 12 is arranged such that the total value of a void volume Vvv of a protrusion valley section 123 and a material volume Vmp of a protrusion peak section 124, which are volume parameters of the surface of the partition wall 12 obtained by non-contact surface roughness measurement, is more than 1.8 μm3/μm2 or less.SELECTED DRAWING: Figure 5
【課題】灰分堆積による圧損上昇を抑制することが可能な排ガス浄化フィルタを提供する。【解決手段】排ガス浄化フィルタ１は、フィルタ軸方向Ｘに延びる複数のセル１１と、複数のセル１１を区画形成する多孔質の隔壁１２と、フィルタ両端部において複数のセル１１を交互に目封じする封止部１３と、を有する。排ガス浄化フィルタ１において、隔壁１２は、非接触式の面粗さ測定による隔壁１２表面の体積パラメータである突出谷部１２３の空間体積Ｖｖｖおよび突出山部１２４の実体体積Ｖｍｐの合計値が、１．８μｍ３／μｍ２以下とされている。【選択図】図５
EXHAUST GAS PURIFICATION FILTER
排ガス浄化フィルタ
KAYAMA HIROAKI (author)
2021-02-22
Patent
Electronic Resource
Japanese