Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2006-05-23
2006-05-23
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C701S103000, C701S108000, C123S568210
Reexamination Certificate
active
07047953
ABSTRACT:
A valve operator position is determined for an exhaust gas recirculation valve (117) for an internal combustion engine (101). The valve position may be adjusted (313) for transient engine speed conditions and/or adjusted (309) for transient engine load conditions. During high transient states, the EGR valve is closed more, to allow more air to reach the cylinders of the engine, thereby improving engine performance.
REFERENCES:
patent: 6508237 (2003-01-01), Romzek et al.
patent: 6698409 (2004-03-01), Kennedy et al.
patent: 05- 172008 (1993-07-01), None
Calfa Jeffrey P.
Castro Arnold
International Engine Intellectual Property Company LLC
Lukasik Susan L.
Miller Carl S.
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