Closed loop engine control for regulating NOx emissions, using a two-dimensional fuel-air curve
US7168411B2 · kind B2 · utility
6Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control strategy that ensures that NOx emissions from the engine will be maintained at an acceptable level. The control strategy is based on a two-dimensional fuel-air curve, in which air manifold pressure (AMP) is a function of fuel header pressure and engine speed. The control strategy provides for closed loop NOx adjustment to a base AMP value derived from the fuel-air curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.