Advanced science.  Applied technology.


Internal Combustion Engine Having Dedicated EGR Cylinder(s) and Improved Fuel Pump System: 10,851,738


A method of improving fuel delivery in an engine having one or more cylinders that are over-fueled related to other cylinders, such as a D-EGR engine. The fueling system uses a mechanical fuel pump, which is cam-driven. The cam has lobes corresponding to the desired displacement for each cylinder. The lobe corresponding to the over-fueled cylinder is shaped differently, such that the filling stroke of the pump is increased. 

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Raphael Gukelberger; Garrett L. Anderson