Advanced science.  Applied technology.


Internal Combustion Engine Having Dedicated EGR Cylinder(s) with Delayed Fuel Injection: 10,465,636


A method of controlling fuel injection to the cylinders of an internal combustion engine, the engine having exhaust gas recirculation (EGR) from at least one dedicated EGR (D-EGR) cylinder, with the other cylinders being main cylinders. The D-EGR cylinder(s) are run at a richer equivalence ratio than the main cylinders, with the goal of providing increased H2 and CO in the recirculated exhaust. The start of fuel injection to the D-EGR cylinder(s) is delayed as compared to the start of fuel injection to the main cylinders. 

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Raphael Gukelberger; Bradley Denton