Passive NOx and PM aftertreatment for diesel engine
US8316633B2 · kind B2 · utility
0Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of reducing emissions by operating a diesel engine in a stoichiometric air-fuel ratio mode. To achieve an optimal stoichiometric mode, intake throttling, boost air intake control, fuel injection adjustments, and exhaust gas recirculation (EGR) are used. This mode of operation permits an aftertreatment system that has only an oxidation catalyst and a particulate filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.