Device and method for regenerating an exhaust gas aftertreatment device
US6644020B2 · kind B2 · utility
17Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Sep 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for regenerating a particulate filter in the exhaust system of a diesel engine, an increase in the temperature of the exhaust gases being brought about by post-injection of fuel. The intake pressure (MAP) and/or the air mass flow rate (MAF) are reduced as a function of the ambient temperature of the engine and preferably also when the engine load is low by throttling the engine. In this way, the proportions of burned or unburned post-injected fuel can be stabilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.