Method for reducing diesel engine emissions, and diesel engine
US8528329B2 · kind B2 · utility
2Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2008 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 22, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/23
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling emissions during low-load diesel engine operation is provided. The engine includes at least one piston movable in a cylinder between a top dead center and a bottom dead center position, a fuel injector for injecting fuel into the cylinder, and a variable geometry turbine through which exhaust from the engine is adapted to flow. According to the method, the engine is operated at low load, NOx emissions are measured at an exhaust of the engine, and a variable geometry turbine inlet opening size is controlled responsive to NOx emissions measurements so that NOx emission levels are controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.