公开(公告)号：EP3885030A1

公开(公告)日：2021-09-29

申请号：EP21162278.2

申请日：2021-03-12

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

发明人： CHINZEI, Isao ,  NISHIO, Takahiro ,  SHIRAKAWA, Shogo ,  MIURA, Masahide ,  SUZUKI, Hiromasa ,  KIDO, Yuki ,  ITO, Minoru ,  HOSHINO, Sho ,  NAKAYAMA, Shin

IPC分类号： B01D53/94

摘要： Provided is an exhaust gas purification catalyst capable of reducing a noble metal amount while maintaining a catalyst performance, which comprises a substrate and at least three catalyst coating layers formed on the substrate, the first and third catalyst coating layers contain Pd as a catalyst metal and are formed in a range of a predetermined length from an upstream end surface in an exhaust gas flow direction, and the second catalyst coating layer contains Rh as a catalyst metal and is formed in a range of a predetermined length from a downstream end surface in the exhaust gas flow direction.

公开(公告)号：EP3738681A1

公开(公告)日：2020-11-18

申请号：EP19900102.5

申请日：2019-11-08

申请人： CATALER CORPORATION

发明人： KIDO, Yuki ,  MATSUI, Suguru ,  OHARA, Etsuko ,  NAKADA, Kazuma

IPC分类号： B05D7/00 ,  B05D7/24 ,  B01J37/02 ,  B01D53/94 ,  B05B1/18

摘要： The present invention relates to a production method of an exhaust gas purification device, including 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.