Method and system for igniting a lean fuel mixture in a main...

Details Method and system for igniting a lean fuel mixture in a main... Method and system for igniting a lean fuel mixture in a main...

2008-10-24

2011-11-01

Solis, Erick (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S105000, C123S267000, C123S275000

Reexamination Certificate

active

08050848

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.

REFERENCES:
patent: 6144015 (2000-11-01), Chiu et al.
patent: 6177653 (2001-01-01), Chiu et al.
patent: 6512204 (2003-01-01), Chiu et al.
patent: 7275916 (2007-10-01), Smith et al.
patent: 2005/0061295 (2005-03-01), Minato
patent: 2010/0185381 (2010-07-01), VanDyne et al.

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