公开(公告)号：US20190120104A1

公开(公告)日：2019-04-25

申请号：US16090723

申请日：2017-03-21

Applicant: CATALER CORPORATION

Inventor： Satoru INODA ,  Yasutaka NOMURA ,  Junji KURIYAMA ,  Naoto MIYOSHI ,  Masahiko TAKEUCHI ,  Akemi SATO

IPC: F01N3/022 ,  F01N3/035 ,  F01N3/10 ,  F01N3/28 ,  B01J23/46 ,  B01J23/42 ,  B01J23/44 ,  B01J35/04

Abstract: An exhaust gas purification device includes: a substrate of wall-flow structure having an inlet cell, an outlet cell and a porous partition wall; an upstream catalyst layer provided inside the partition wall and disposed in an upstream portion, including an exhaust gas inflow end section, of the substrate; and a downstream catalyst layer provided inside the partition wall and disposed in a downstream portion, including an exhaust gas outflow end section, of the substrate. The downstream catalyst layer contains a carrier, and Rh supported on the carrier. The upstream catalyst layer contains a carrier, and Pd and/or Pt supported on the carrier.

公开(公告)号：US20180021726A1

公开(公告)日：2018-01-25

申请号：US15550078

申请日：2016-02-16

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryota ONOE ,  Shingo SAKAGAMI ,  Yasutaka NOMURA ,  Yuta MORISHITA ,  Junji KURIYAMA ,  Hiroshi SEKINE ,  Daisuke OCHIAI ,  Naoto MIYOSHI ,  Masahiko TAKEUCHI ,  Akemi SATO

IPC: B01D53/94 ,  B01J35/00 ,  B01J23/63 ,  B01J35/04

CPC classification number: B01D53/945 ,  B01D53/94 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2255/9155 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/0864 ,  F01N3/10 ,  F01N3/281 ,  F01N2330/02 ,  F01N2510/0682 ,  F01N2510/0684

Abstract: A wall-flow-type exhaust gas purification catalyst with an oxygen storage material that has an increased OSC and exhibits its OSC without a compromise provides an exhaust gas purification catalyst having a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. The second catalytic layer is provided to an internal portion of a partition wall in contact with an exit cell. Each of the first and second catalytic layers has an oxygen storage material. The ratio (D1/D2) of the coating density D1 of the first catalytic layer to the coating density D2 of the second catalytic layer is 1.1 to 1.8.

公开(公告)号：US20170304773A1

公开(公告)日：2017-10-26

申请号：US15517990

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: B01D53/94 ,  B01J35/04 ,  B01J37/02 ,  F01N3/28

CPC classification number: B01D53/945 ,  B01D53/9468 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/9155 ,  B01J35/04 ,  B01J37/0244 ,  F01N3/0222 ,  F01N3/2803 ,  F01N2510/0682 ,  Y02T10/20 ,  Y02T10/22

Abstract: An exhaust gas purification catalyst having an excellent exhaust gas purification ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes entrance cell, exit cell, and a wall-flow substrate having partition wall to separate these cell, a catalytic layer formed from exhaust inlet-side ends in the extending direction in sections of the interior of partition wall facing entrance cell, and a catalytic layer formed on the surface of partition wall facing exit cell from exhaust outlet-side ends in the extending direction of partition wall, having a length shorter than the entire partition wall length.