Internal combustion engine and method for auto-ignition...

Details Internal combustion engine and method for auto-ignition... Internal combustion engine and method for auto-ignition...

2007-03-27

2007-03-27

Solis, Erick (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

C123S299000, C123S305000

Reexamination Certificate

active

11331917

ABSTRACT:
The invention relates to an internal combustion engine that can be operated in compression ignition mode, the engine comprising a fuel injector for each cylinder; a fuel injection controller for controlling fuel injection quantity and a piston in each cylinder whose compression action causes a mixture of air and fuel to be ignited. The engine is further provided with inlet and outlet valves and sensors for measuring various engine operating parameters. During compression ignition mode, the control unit controls the fuel injector to perform a first fuel injection before top dead center of the exhaust stroke during a period of negative valve overlap, and a second fuel injection during the piston compression stroke. The control unit may perform a switch between a first fuel injection strategy and at least one further fuel injection strategy in response to a change in load demand on the engine.

REFERENCES:
patent: 6422200 (2002-07-01), Morikawa et al.
patent: 6499458 (2002-12-01), Nieberding
patent: 6971365 (2005-12-01), Najt et al.
patent: 2006/0016423 (2006-01-01), Kuo et al.
patent: 10244365 (2004-04-01), None
patent: 1134398 (2001-09-01), None
patent: 1052391 (2004-04-01), None
patent: 1435442 (2004-07-01), None

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