Method and system for igniting a lean fuel mixture in a main chamber of an internal combustion engine
US8050848B2 · kind B2 · utility
8Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Oct 22, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and system for igniting a lean fuel mixture in a main chamber of an internal combustion engine by igniting a rich air-fuel mixture in a pre-combustion chamber which is fuelled using a controlled valve. For a stable and consistent ignition of the main chamber and simultaneous reduction of emission of the internal combustion engine, a closed loop control adjusts the fuel amount and the fuelling time for the pre-combustion chamber in order to achieve a light off in an optimal time window and by sufficient ignition energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.