Fuel injection control device for a direct fuel injection...

Details Fuel injection control device for a direct fuel injection... Fuel injection control device for a direct fuel injection...

2005-07-05

2005-07-05

Huynh, Hai (Department: 3747)

Internal-combustion engines

Precombustion and main combustion chambers in series

Having combustible mixture forming means

C123S295000, C123S299000

Reexamination Certificate

active

06912989

ABSTRACT:
A fuel injection control device for a direct fuel injection engine is configured to selectively control a fuel injection valve, which is configured and arranged to directly inject a first fuel stream per cycle into a combustion chamber, to use a first fuel injection timing when the controller determines that a stratified air-fuel mixture will be difficult to form during a second fuel injection timing based on a determination of an engine operation parameter by at least one sensor. The first fuel injection timing is set to control the injection valve to inject the first fuel stream during an intake stroke while a piston in the combustion chamber is approximately at an intake top dead center position such that a majority of the first fuel stream injected from the fuel injection valve is received inside a cavity formed on the piston.

REFERENCES:
patent: 6401688 (2002-06-01), Teraji et al.
patent: 6715463 (2004-04-01), Kudo et al.
patent: 6739309 (2004-05-01), Hiraya et al.
patent: 6792912 (2004-09-01), Kikuchi et al.
patent: 6814046 (2004-11-01), Hiraya et al.
patent: 11-82028 (1999-03-01), None
patent: 2001-271688 (2001-10-01), None

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