Exhaust gas system
US8468802B2 · kind B2 · utility
2Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jun 27, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas system for combustion engines is provided having at least one exhaust gas duct, in particular an exhaust pipe, and having an exhaust gas treatment device such as an oxidation catalyst, an SCR catalyst or a diesel particulate filter downstream of the exhaust gas duct, wherein, to improve the efficiency of downstream gas treatment devices, at least one secondary flow duct, in particular a secondary flow pipe, is provided in the exhaust gas duct with a cross-section reduced with respect to the exhaust gas duct which imparts coerced guidance of some of the exhaust gas flow differing from the actual exhaust gas flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.