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Method of Operating Internal Combustion Engine Having Increased Rich Limit for Dedicated EGR Cylinder
Method of Operating Internal Combustion Engine Having Increased Rich Limit for Dedicated EGR Cylinder
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机译:用于增加专用EGR气缸的浓限的内燃机的操作方法
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摘要
A method of providing internal EGR to an engine having at least one dedicated EGR cylinder. The main (non dedicated) cylinders are operated with internal EGR, in addition to external EGR from the dedicated EGR cylinder. The dedicated EGR cylinder has separate valve control so that it need not be operated with internal EGR, thereby allowing it to be operated at a richer air-to-fuel ratio.
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