Method for operating an exhaust gas after-treatment system for an internal combustion engine
US9757692B2 · kind B2 · utility
0Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a method for operating an exhaust gas after-treatment system for an internal combustion engine, the exhaust gas after-treatment system comprises at least one apparatus for generating a plasma and at least one SCR catalyst. The exhaust gas after-treatment system further comprises a device for metering a reactant for the SCR catalyst. According to the invention, the nitrogen oxides resulting from the operation of the apparatus for generating a plasma are taken into account in the method when metering the reactant for the SCR catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.