Exhaust gas recirculation controller

Details Exhaust gas recirculation controller Exhaust gas recirculation controller

2006-06-13

2006-06-13

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S568110

Reexamination Certificate

active

07059309

ABSTRACT:
An ECU varies a period during which an intake valve and an exhaust valve are both simultaneously open by setting a target overlap angle OVP to be equal to a limit overlap angle OVL until the coolant temperature becomes higher than a reference temperature to reduce the internal EGR amount. This prevents combustion deterioration in a gasoline engine.

REFERENCES:
patent: 6810866 (2004-11-01), Geiser
patent: 6917874 (2005-07-01), Uchida et al.
patent: 07-103050 (1995-04-01), None
patent: 10-299557 (1998-11-01), None
patent: 11-013502 (1999-01-01), None
patent: 11-066458 (1999-01-01), None
patent: 11-082134 (1999-03-01), None
patent: 2001-323831 (2001-11-01), None

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