公开(公告)号：US10369520B2

公开(公告)日：2019-08-06

申请号：US15545418

申请日：2016-01-08

Applicant: Cataler Corporation

Inventor： Ryota Onoe ,  Tsuyoshi Ito ,  Yuki Takesue ,  Masatoshi Ikebe ,  Chihiro Kasuya ,  Yuta Morishita

IPC: F01N3/10 ,  F01N3/28 ,  B01D53/94 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04

Abstract: The exhaust gas cleaning catalyst according to the present invention is provided with a cylindrical substrate 10 and a catalyst coat layer 20 formed on the surface of the substrate 10. A ratio of the length L in the cylindrical axis direction of the substrate 10 and the diameter D of a cross section orthogonal to the cylindrical axis direction is denoted by (L/D)≤0.8. The coat density of the catalyst coat layer 20 differs between an upstream side portion 10a that includes the exhaust gas inlet-side end 16 of the substrate 10 and a downstream side portion 10b that includes the exhaust gas outlet-side end 18 of the substrate 10. The coat density A in the upstream side portion 10a is lower than the coat density B in the downstream side portion 10b (A

公开(公告)号：US10125649B2

公开(公告)日：2018-11-13

申请号：US15517311

申请日：2015-10-07

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryota Onoe ,  Shingo Sakagami ,  Tsuyoshi Ito ,  Masahiko Takeuchi ,  Naoto Miyoshi ,  Akemi Sato

IPC: F01N3/28 ,  B01D53/94 ,  B01J35/04 ,  F01N3/022 ,  F01N3/035 ,  B01J21/04 ,  B01J23/10 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J35/00 ,  B01J37/02 ,  B01J37/08

Abstract: An exhaust gas purification catalyst that has an excellent exhaust gas purification performance while suppressing pressure loss increases. The exhaust gas purification catalyst is provided with a substrate having a wall-flow structure and having a partition; a first catalyst layer formed, in a region of an interior part of the partition that is in contact with an entrance cell, along the extending direction of the partition from an exhaust gas inflow-side end for less than the total length Lw of the partition; and a second catalyst layer formed, in a region of an interior part of the partition that is in contact with an exit cell, along the extending direction of the partition from the exhaust gas outflow-side end for less than the total length Lw of the partition. The first catalyst layer and the second catalyst layer are configured to partially overlap with each other in the extending direction.