Strategy employing exhaust back-pressure for burning soot trapped by a diesel particulate filter
US8434299B2 · kind B2 · utility
2Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2003 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Sep 14, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust system (16) of a diesel engine (10) has a diesel particulate filter (18) for treating exhaust gas. When trapped soot has accumulated to an extent that may affect performance of the filter, an engine control system (12) forces combustion of trapped soot by increasing exhaust back-pressure using a control device (20) such as a back-pressure control valve or vanes of a variable geometry turbocharger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.