Compact diesel engine exhaust treatment system
US8844274B2 · kind B2 · utility
6Cited by
35References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2009 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A diesel engine exhaust treatment system and method is provided which utilizes a diesel particulate filter positioned in the exhaust gas stream of a vehicle which includes an SCR catalyst, an ammonia oxidation catalyst, and/or a diesel oxidation catalyst. The system is capable of performing multiple functions including converting NOx to N2, converting HC and CO to H2O and CO2, trapping particulates, and minimizing ammonia emissions. The system is more compact and efficient than prior systems utilizing separate catalyst units, and minimizes backpressure while maximizing catalyst performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.