公开(公告)号：US20180133648A1

公开(公告)日：2018-05-17

申请号：US15571801

申请日：2017-03-13

Applicant: CATALER CORPORATION

Inventor： Hiroshi SEKINE ,  Suguru MATSUI

IPC: B01D53/94 ,  B01J35/04 ,  F01N3/28

CPC classification number: B01D53/94 ,  B01D53/9409 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01J29/85 ,  B01J35/04 ,  F01N3/035 ,  F01N3/2839 ,  F01N2510/0682

Abstract: An exhaust gas purification device includes: a wall-flow-structured base material having input-side cells, output-side cells, and a porous partition wall; and a catalyst layer formed inside the partition wall contacting the input-side cells or the output-side cells. The catalyst layer is formed in a region extending from the surface of the partition wall and covering at least 90% of the thickness of the partition wall, and is held by the surfaces of the inside pores of the partition wall in the region. Further, the average filling ratios A, B, and C of the catalyst layer held by pores in respective pore size ranges satisfy a specific relationship.

公开(公告)号：US20210086133A1

公开(公告)日：2021-03-25

申请号：US16959896

申请日：2019-11-08

Applicant: CATALER CORPORATION

Inventor： Yuki KIDO ,  Suguru MATSUI ,  Etsuko OHARA ,  Kazuma NAKADA

IPC: B01D53/94 ,  B01J37/02 ,  B05D7/24

Abstract: A production method of an exhaust gas purification device includes the steps of supplying a solution containing a catalyst metal from a shower nozzle to an upper part of a honeycomb substrate, coating the honeycomb substrate with the solution, and firing the honeycomb substrate coated with the solution, wherein the shower nozzle has a plurality of discharge openings for discharging the solution and a guard which surrounds the plurality of discharge openings.