Exhaust gas treatment system
US8409515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An emission treatment system for a vehicle having an internal combustion engine is described. The emission treatment system has an HC-SCR catalyst including a non-Pt group metal dispersed in a ceramic matrix configured to receive an exhaust gas flow from an engine. The system also has an oxidation catalyst comprising a Pt group metal configured to receive the exhaust gas flow from the HC-SCR catalyst. The system also has a U-SCR catalyst and a diesel particulate filter, one of the U-SCR catalyst or the DPF configured to receive the exhaust gas flow from the oxidation catalyst and the other one of the U-SCR catalyst or the diesel particulate filter configured to receive the exhaust gas flow from the respective one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.