System for aiding the regeneration of pollution-control means that are integrated in an exhaust line of a motor vehicle engine
US6837042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Nov 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This system for aiding the regeneration of pollution-control means (1) that are integrated in an exhaust line (2) of an engine (3) of a motor vehicle, in which the engine is associated with means (6) for the common supply of the cylinders thereof, which means are in a form suitable for injecting fuel, during regeneration, into each cylinder in the form of at least one principal injection and at least one post-injection during the expansion phase of the cylinder, is characterized in that the supply means (6) are in a form suitable for cutting at least the principal injection of at least one of the cylinders in order to increase the oxygen content of the exhaust gases and to optimise the regeneration of the pollution-control means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.