公开(公告)号：US20210115825A1

公开(公告)日：2021-04-22

申请号：US17136420

申请日：2020-12-29

Applicant: NGK INSULATORS, LTD.

Inventor： Yukio MIYAIRI ,  Takehide SHIMODA ,  Takashi AOKI ,  Hirofumi SAKAMOTO ,  Masaaki MASUDA ,  Atsuo KONDO ,  Yunie IZUMI ,  Kyohei KATO ,  Norihiro WAKITA

IPC: F01N3/022 ,  F01N3/28

Abstract: A pillar shaped honeycomb structure includes: a porous partition wall that defines a plurality of cells, the cells forming flow paths for a fluid, the cells extending from an inflow end face to an outflow end face; and an outer peripheral wall located at the outermost circumference. At least a part of surfaces of the partition walls has a surface layer, and the surface layer includes magnetic particles and has permeability.

公开(公告)号：US20180268094A1

公开(公告)日：2018-09-20

申请号：US15983478

申请日：2018-05-18

Applicant: NGK Insulators, Ltd.

Inventor： Satoshi SAKASHITA ,  Hiroyuki NAGAOKA ,  Takehide SHIMODA

IPC: G06F17/50 ,  B01D46/24 ,  B28B11/24 ,  C04B35/195 ,  C04B35/636 ,  C04B38/00

CPC classification number: G06F17/5009 ,  B01D46/2451 ,  B01D2046/2496 ,  B28B11/243 ,  C04B28/24 ,  C04B35/195 ,  C04B35/6365 ,  C04B38/0006 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/349 ,  C04B2235/5436 ,  C04B2235/6021 ,  C04B2235/606 ,  C04B14/324 ,  C04B14/4656 ,  C04B24/02 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/0645

Abstract: A method for producing a porous body, comprising a raw-material mixing step of mixing talc having an average particle size of 1 μm or more and 18 μm or less, alumina, an auxiliary raw material containing a material that undergoes a eutectic reaction with talc and being prepared in an amount so as to satisfy a weight ratio of 0.5% or more and 1.5% or less by weight relative to the talc, and a pore-forming agent, to provide green body, and a molding and firing step of molding the green body to provide a compact and firing this compact at a firing temperature of 1350° C. to 1440° C.

公开(公告)号：US20150278409A1

公开(公告)日：2015-10-01

申请号：US14663537

申请日：2015-03-20

Applicant: NGK Insulators, Ltd.

Inventor： Satoshi SAKASHITA ,  Hiroyuki NAGAOKA ,  Takehide SHIMODA

IPC: G06F17/50 ,  B01D46/24 ,  B28B11/24

CPC classification number: G06F17/5009 ,  B01D46/2451 ,  B01D2046/2496 ,  B28B11/243 ,  C04B28/24 ,  C04B35/195 ,  C04B35/6365 ,  C04B38/0006 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/349 ,  C04B2235/5436 ,  C04B2235/6021 ,  C04B2235/606 ,  C04B14/324 ,  C04B14/4656 ,  C04B24/02 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/0645

Abstract: A porous body has a flow-rate-weighted mean diameter Ru of 10 μl or more and 24 μm or less, which is obtained as follows: with reference to porous-body data obtained by a CT scan in which positional information is associated with voxel-type information, a plurality of virtual curved surface solids, which are each a curved surface solid made up of a plurality of virtual spheres, are placed to fill space voxels (Step S100); fluid analysis is carried out to obtain information regarding the flow rates of a fluid in individual space voxels during passing of the fluid through the porous body (Step S110); and, the flow-rate-weighted mean diameter Ru is obtained, which is a weighted mean obtained by weighting the equivalent diameter R′i of each virtual curved surface solid with the volume Vi and average flow rate Ui of each virtual curved surface solid (Step S120).

Abstract translation: 多孔体的流速加权平均直径Ru为10μl以上且24μm以下，如下所述：参照通过CT扫描获得的多孔体数据，其中位置信息与体素相关联 放置多个虚拟曲面固体，它们分别由多个虚拟球形成的曲面实体，以填充空间体素（步骤S100）。 进行流体分析以获得关于流体通过多孔体时的个体空间体素中的流体的流量的信息（步骤S110）。 并且获得流量加权平均直径Ru，其是通过用虚拟曲面实体的体积Vi和平均流量Ui加权每个虚拟曲面固体的当量直径R'i获得的加权平均（ 步骤S120）。