Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2008-08-27
2011-11-15
Wolfe, Jr., Willis (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S568160, C123S698000, C060S605200, C702S183000, C165S095000
Reexamination Certificate
active
08056544
ABSTRACT:
A method for operating an internal combustion engine Exhaust Gas Recirculation (EGR) system that includes producing an EGR valve position signal to decrease the amount of exhaust gas passed to the EGR cooler when a processor determines the EGR cooler efficiency is less than the predetermined level and producing an EGR coolant valve position signal to decrease the amount of coolant passed to the EGR cooler when such processor determines the EGR cooler efficiency is less than the predetermined level. The processor produced EGR valve and the EGR coolant valve position signals result in regeneration within the cooler, returning the effectiveness of the cooler to a near “clean” condition.
REFERENCES:
patent: 6666201 (2003-12-01), Mazur
patent: 6681564 (2004-01-01), Nishiyama et al.
patent: 6708487 (2004-03-01), Morimoto et al.
patent: 6826903 (2004-12-01), Yahata et al.
patent: 6901746 (2005-06-01), Nishiyama et al.
patent: 7178326 (2007-02-01), Kojima et al.
patent: 7210469 (2007-05-01), Saele
patent: 7778766 (2010-08-01), Cowgill et al.
patent: 2003/0225503 (2003-12-01), Mazur
patent: 2004/0045280 (2004-03-01), Nishiyama et al.
patent: 2006/0075740 (2006-04-01), Twigg et al.
patent: 2006/0117751 (2006-06-01), Todoroki et al.
patent: 2006/0200297 (2006-09-01), Liu et al.
patent: 10112257 (2001-10-01), None
patent: 10103161 (1998-04-01), None
Lyon Peter Mitchell
Murphy Kevin R.
Oberski Christopher
Schneyer Jeffrey B.
Webb Timothy
Ford Global Technologies LLC
Hoang Johnny
Wolfe, Jr. Willis
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