Flexible fuel injection for multiple modes of diesel engine exhaust aftertreatment
US8256210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2007 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | May 30, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
One embodiment is a system including a controller operable to control fuel injection events. The system is operable in a base mode, and at least one of a deNOx mode, a deSOx mode, and a deSoot mode. The base mode includes a pilot injection pulse, a main injection pulse, a post injection pulse, and a second post injection pulse. The deNOx mode includes a pilot injection pulse, a main injection pulse, and a post injection pulse. The deSOx mode includes a pilot injection pulse, a main injection pulse, a post injection pulse, a second post injection pulse, and a third post injection pulse. The deSoot mode includes a pilot injection pulse, a main injection pulse, a post injection pulse, a second post injection pulse, and a third post injection pulse. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.