Exhaust system with improved NOX emission control
US8122712B2 · kind B2 · utility
2Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 8, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust system includes a selective catalytic reduction (SCR) unit and a NOx absorber that may include a lean NOx trap (LNT). The NOx absorber absorbs NOx and releases the NOx absorbed in the NOx absorber into the SCR unit. The SCR unit converts NOx of exhaust gas into nitrogen and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.