Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2011-08-23
2011-08-23
Huynh, Hai H (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S559100
Reexamination Certificate
active
08001953
ABSTRACT:
In an exhaust gas recirculation system for an internal combustion engine, which includes a turbocharger; a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; and a low-pressure EGR valve, first, the opening amount of the high-pressure EGR valve is controlled in a feedback manner, and, then, the opening amount of a low-pressure EGR valve is controlled in a feedback manner in a transitional operation period in which the operation mode of the internal combustion engine is changing. In this way, the intake air amount is promptly adjusted to the target intake air amount without causing hunting.
REFERENCES:
patent: 2009/0223221 (2009-09-01), Onishi et al.
patent: 2009/0283077 (2009-11-01), Murata et al.
patent: 2010/0000500 (2010-01-01), Shimizu et al.
patent: 1 870 584 (2007-12-01), None
patent: 1 892 400 (2008-02-01), None
patent: 2002-021625 (2002-01-01), None
patent: 2004-150319 (2004-05-01), None
patent: 2005-076456 (2005-03-01), None
patent: 2006-336547 (2006-12-01), None
patent: 2007/085944 (2007-08-01), None
patent: 2008/038083 (2008-04-01), None
Murata Hiroki
Nagae Masahiro
Nakayama Shigeki
Onishi Tomomi
Shimizu Hajime
Huynh Hai H
Sughrue & Mion, PLLC
Toyota Jidosha & Kabushiki Kaisha
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