Title:
排ガス浄化用触媒
Document Type and Number:
Japanese Patent JP6539666
Kind Code:
B2
Abstract:
Provided is an exhaust gas purification catalyst in which the performance of a catalyst metal can be brought out properly, the purification catalyst boasting excellent purification performance during warm-up of an internal combustion engine. The exhaust gas purification catalyst 10 is provided with a substrate 1 and a catalyst layer. A leading end section 1a positioned upstream in the direction of exhaust gas flow (arrow) has a portion in which the flow rate of exhaust gas is relatively high and a portion in which the flow rate of exhaust gas is relatively low during warm-up of the internal combustion engine. The catalyst layer in the portion of relatively high flow rate of exhaust gas has a high density section 6 in which a noble metal is supported at relatively high density. The high density section 6 is formed to be shorter than the total length of the exhaust gas purification catalyst 10 from the leading end section 1a in the direction of exhaust gas flow.
Inventors:
Ryota Onoue
Shingo Sakagami
Tsuyoshi Ito
Yuta Morishita
Shingo Sakagami
Tsuyoshi Ito
Yuta Morishita
Application Number:
JP2016547438A
Publication Date:
July 03, 2019
Filing Date:
September 07, 2015
Export Citation:
Assignee:
Cataler Co., Ltd.
International Classes:
B01J35/04; B01D53/94; B01J23/63; F01N3/10; F01N3/28; F01N13/08
Domestic Patent References:
| JP200668679A | ||||
| JP200235585A | ||||
| JP2004275883A | ||||
| JP2002177794A |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Shunsuke Fukutomi
Michiko Oi
Shunsuke Fukutomi