Advanced science.  Applied technology.

Search

Internal Combustion Engine Having Dedicated EGR Cylinder(s) with Delayed Fuel Injection

Abstract: 

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. 

Patent Number: 
10465636
Date Of Issue: 
11/05/2019
Inventors: 

Raphael Gukelberger; Bradley Denton