Exhaust emission purification system for diesel engine
US6823660B2 · kind B2 · utility
52Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Dec 5, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A first exhaust emission purification device first and a second exhaust emission purification device, each have a continuously regenerating type DPF and an SCR catalyst to constitute exhaust emission purification system for a diesel engine. When the exhaust gas temperature is within a low-temperature region lower than a predetermined temperature region, the exhaust gas temperature is raised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.