公开(公告)号：US06790248B2

公开(公告)日：2004-09-14

申请号：US10022414

申请日：2001-12-20

Applicant: Mikio Ishihara ,  Mamoru Nishimura ,  Hirohumi Yamashita

Inventor： Mikio Ishihara ,  Mamoru Nishimura ,  Hirohumi Yamashita

IPC: B01D4600

CPC classification number: B01D46/2459 ,  B01D46/2451 ,  B01D2046/2481 ,  B01D2046/2488 ,  B01D2046/2492 ,  B01D2046/2496 ,  F01N3/0222 ,  F01N3/031 ,  F01N2410/08 ,  Y02T10/20 ,  Y10S55/30 ,  Y10T428/24149

Abstract: An exhaust gas filter is capable of suppressing the generation of an excessive pressure loss due to the particulates deposited. At least a part of a multiplicity of cells surrounded by partitioning walls of the honeycombed exhaust gas purification filter have plugs on one of their two end portions. At least a part of the cells to be arranged on the downstream side in the fluid path are partial plugs having openings allowing the fluid flow. The pressure loss caused when the fluid entering the cells passes through the partitioning walls is smaller than the pressure loss caused when the exhaust gas passes through the partial plugs.

Abstract translation: 排气过滤器能够抑制由于沉积的颗粒而导致的过大的压力损失的产生。 由蜂窝式废气净化过滤器的分隔壁围绕的多个单元的至少一部分在它们的两个端部中的一个上具有插塞。 要布置在流体路径中的下游侧的细胞的至少一部分是具有允许流体流动的开口的部分塞子。 进入细胞的流体通过分隔壁时产生的压力损失小于当废气通过部分塞子时引起的压力损失。