公开(公告)号：US11590444B2

公开(公告)日：2023-02-28

申请号：US17656032

申请日：2022-03-23

申请人： NGK Insulators, Ltd.

发明人： Takashi Aoki ,  Yasuyuki Furuta ,  Takahiro Honda ,  Koji Kuzutani

IPC分类号： B01D46/24 ,  B01J35/04

摘要： A honeycomb filter includes a pillar-shaped honeycomb substrate having a porous partition wall and a plugging portion provided so as to plug end at any one of the inflow end face side or the outflow end face side of the cell, wherein in a section orthogonal to the extending direction of the cell, the shape of the cell is hexagonal, the partition wall includes a first partition wall disposed between the inflow cell and the outflow cell and a second partition wall disposed between the inflow cells, and the first partition wall has a porous trapping layer on its surface for trapping particulate matter in exhaust gas, and the second partition wall has no trapping layer on its surface or has a trapping layer thinner than the trapping layer disposed on the surface of the first partition wall.

公开(公告)号：US11065571B2

公开(公告)日：2021-07-20

申请号：US15935485

申请日：2018-03-26

申请人： NGK INSULATORS, LTD.

发明人： Osamu Yasui ,  Kazuto Miura ,  Tomohiro Iida ,  Yukio Miyairi ,  Takashi Aoki

IPC分类号： B01D46/24 ,  F01N3/022 ,  B01D39/20

摘要： Provided is a honeycomb filter, including: a pillar-shaped honeycomb substrate having an inflow end face and an outflow end face and including a porous partition wall surrounding a plurality of cells; and a plugging portion disposed at any one of ends of the cells at the inflow end face and at the outflow end face. In a cross section orthogonal to an extending direction of the cells, inflow cells have a pentagonal or a hexagonal shape, and outflow cells have a square shape. The cells are configured that the inflow cells surround one outflow cell and one side of an inflow cell and one side of an adjacent outflow cell are parallel to each other. The partition wall is configured that thickness of a first partition wall disposed between the inflow cells and the outflow cells is larger than thickness of a second partition wall disposed between the inflow cells.

公开(公告)号：US10040016B1

公开(公告)日：2018-08-07

申请号：US15875251

申请日：2018-01-19

申请人： NGK INSULATORS, LTD.

发明人： Tomohiro Iida ,  Kazuto Miura ,  Takashi Aoki ,  Osamu Yasui

IPC分类号： B01J27/224 ,  B01J35/04 ,  B01J35/10 ,  B01D46/24 ,  C04B38/00 ,  B01D53/94

摘要： A plugged honeycomb structure including: a pillar-shaped honeycomb structure body having porous partition walls made of a material including silicon carbide, and plugging portions, wherein a porosity of the partition walls is from 42 to 52%, a thickness of the partition walls is from 0.15 to 0.36 mm, a ratio of a volume of pores having pore diameters of 10 μm or less to a total pore volume of the partition walls is 41% or less, a ratio of a volume of pores having pore diameters in a range of 18 to 36 μm to the total pore volume is 10% or less, the pore diameter indicating a maximum value of the log differential pore volume is in a range of 10 to 16 μm, and a half-value width of a peak including the maximum value of the log differential pore volume is 5 μm or less.

公开(公告)号：US20180104636A1

公开(公告)日：2018-04-19

申请号：US15704352

申请日：2017-09-14

申请人： NGK INSULATORS, LTD.

发明人： Yukio MIYAIRI ,  Kazuto Miura ,  Tomohiro Iida ,  Takashi Aoki ,  Osamu Yasui

IPC分类号： B01D46/24 ,  B01D46/00

CPC分类号： B01D46/247 ,  B01D46/0063 ,  B01D46/2429 ,  B01D2046/2481 ,  B01D2046/2492 ,  B01D2279/30 ,  F01N3/0222 ,  F01N2330/06 ,  F01N2330/32 ,  Y02T10/20

摘要： A honeycomb structure body is constituted of a circumferential region including the outermost circumference in a cross section of the honeycomb structure body which is perpendicular to an extending direction of cells, and a central region excluding the circumferential region. The circumferential region includes a specific circumferential region in which pressure loss with soot when an amount of the deposited soot is 4 g/L is higher than the pressure loss with soot of the central region as much as 15% or more and in which an open frontal area of the circumferential region is the same as or larger than an open frontal area of the central region. In the cross section of the honeycomb structure body, a ratio of an area of the specific circumferential region is 5% or more to a total area of the circumferential region and the central region.

公开(公告)号：USD785678S1

公开(公告)日：2017-05-02

申请号：US29530511

申请日：2015-06-17

申请人： NGK INSULATORS, LTD.

设计人： Takashi Aoki

公开(公告)号：US20140041350A1

公开(公告)日：2014-02-13

申请号：US13960024

申请日：2013-08-06

申请人： NGK INSULATORS, LTD.

发明人： Takashi Aoki

IPC分类号： B01D46/24

CPC分类号： B01D46/244 ,  B01D46/2459 ,  B01D46/247 ,  B01D2046/2496 ,  F01N2330/32

摘要： A plugged honeycomb structure includes a honeycomb structure section having porous partition walls, a plurality of cells including the cells having different open areas; inflow side plugged portions arranged in inflow side end portions of the predetermined cells; and outflow side plugged portions arranged in outflow side end portions of the remaining cells. Outflow cells which are the cells provided with the inflow side plugged portions and inflow cells which are the cells provided with the outflow side plugged portions are alternately formed, and in a central portion, the open area of each of the inflow cells is larger than the open area of each of the outflow cells. A difference in open area between the outflow cell and the inflow cell in an outer peripheral portion is smaller than a difference in open area between the outflow cell and the inflow cell in the central portion.

摘要翻译： 堵塞蜂窝结构体包括具有多孔分隔壁的蜂窝结构部分，包括具有不同开口面积的单元的多个单元; 设置在预定单元的流入侧端部的流入侧堵塞部; 以及设置在剩余电池的流出侧端部的流出侧堵塞部。 作为设有流出侧堵塞部的细胞的流通池和作为流出侧堵塞部的电池的流出电池交替地形成，并且在中央部，每个流入单元的开放面积大于 每个流出池的开放区域。 外周部的流出室与流入室之间的开放面积的差小于中央部的流出室与流入室之间的开放面积的差。