Method of water/fuel co-injection for emissions control during transient operating conditions of a diesel engine
US6460491B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | May 11, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Engine operating parameters are monitored during each combustion cycle of a diesel engine, and changes in engine load demand are sensed. In response to sensing a change in engine load demand, an engine operating condition indicative of either a high smoke or a high NOx condition, or both, is determined, and water is co-injected with fuel during the transient period in which there is a high smoke or high NOx condition, or both. The co-injection of water and fuel is terminated when it is determined that there is no longer an engine operating condition during the transient period indicative of either a high smoke or a high NOx condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.