公开(公告)号：US20210115828A1

公开(公告)日：2021-04-22

申请号：US16497320

申请日：2018-02-23

Applicant: CATALER CORPORATION

Inventor： Yuki TANAKA ,  Shoko FUKUYO ,  Kazuma NAKADA ,  Eiichi YASUTOMI ,  Ryo NISHIMURA

IPC: F01N3/28 ,  B01J37/02 ,  B01D53/94 ,  B01J35/04 ,  F01N3/035 ,  F01N3/022

Abstract: The purpose of the present invention is to provide a manufacturing method for an exhaust gas purification device that can uniformly coat a honeycomb substrate with slurry even when using a low viscosity slurry. The present invention pertains to a manufacturing method for an exhaust gas purification device that includes providing a slurry for catalyst layer formation from a shower nozzle onto a honeycomb substrate, coating the honeycomb substrate with the slurry, and firing the honeycomb substrate coated with the slurry, wherein the viscosity of the slurry at a shear rate of 4 s−1 is 800 mPA·s or less, the shower nozzle has a plurality of discharge openings for discharging the slurry, the relationship of the spacing a) of the discharge openings and the diameter b) of the liquid drops formed when starting supply of the slurry is 0.85

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.