Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2005-09-20
2005-09-20
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
Reexamination Certificate
active
06945238
ABSTRACT:
An air intake system for an internal combustion engine includes a conduit defining a passageway that conveys air to a manifold. An EGR inlet in the conduit enables EGR to mix with the air. A plate is sufficiently positioned in the passageway such that air in the passageway is divided into two streams. One of the streams flows on one side of the plate and the other stream flows on the other side of the plate. The plate is sufficiently positioned with respect to the EGR inlet such that at least some of the EGR, and preferably the greater part of the EGR entering the passageway, is diverted to flow on only one side of the plate. The plate deflects at least some of the EGR such that it has more time and space in which to mix with the air before being ingested in an engine cylinder. The plate thus enables more consistent EGR distribution among engine cylinders, resulting in better emissions and fuel economy compared to the prior art.
REFERENCES:
patent: 6092512 (2000-07-01), Ma
patent: 6167865 (2001-01-01), Ma
patent: 6705267 (2004-03-01), Westerbeke et al.
Gimie Mahmoud
Marra Kathryn A.
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