Operating method for an exhaust aftertreatment system and exhaust aftertreatment system
US9399937B2 · kind B2 · utility
2Cited by
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13Claims
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Key dates
| Filing date | Mar 12, 2009 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Mar 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An operating method of an exhaust gas aftertreatment system including at least a particulate filter for retaining soot from the exhaust gas of an engine and a deNOx catalytic converter for reducing nitrogen oxide in the exhaust gas of the engine is provided. Operation regimes of the particulate filter and of the deNOx catalytic converter are synchronized with respect to each other for performing regeneration of the particulate filter while the catalytic converter provides a nitrogen oxide conversion efficiency above a predetermined limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.