Systems and techniques for nozzle cooling of diesel exhaust fluid injection systems
US9617889B2 · kind B2 · utility
4Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Dec 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system is provided for delivery of diesel exhaust fluid or other reductant to an injector for release into an engine exhaust aftertreatment system. The injector includes a nozzle assembly that thermally shields the diesel exhaust fluid from the exhaust gas temperatures. A diesel exhaust fluid delivery procedure is also disclosed for nozzle cooling prior to operation of the injector for emissions reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.