Diesel oxidation catalyst and exhaust system
US11338245B2 · kind B2 · utility
5Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | May 13, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising platinum (Pt), manganese (Mn) and a first support material; a second washcoat region comprising a platinum group metal (PGM) and a second support material; and a substrate having an inlet end and an outlet end; wherein the second washcoat region is arranged to contact the exhaust gas at the outlet end of the substrate and after contact of the exhaust gas with the first washcoat region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.