Reductant injection rate shaping method for regeneration of aftertreatment systems
US7587890B2 · kind B2 · utility
5Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2006 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Aug 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention provides methods for regenerating pollutant storage and catalytic components of an internal combustion engine's exhaust gas aftertreatment system. These methods include introducing reductant in to catalytic components requiring regeneration in series of discreet portions during a Scheduled Regeneration Event. Typically the flow of exhaust gas to the catalytic component undergoing regeneration is at least partially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.