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Dedicated Exhaust Gas Recirculation Configuration for Reduced EGR and Fresh Air Backflow

Abstract: 

A dedicated exhaust gas recirculation configuration that provides reduced exhaust gas recirculation (EGR) backflow and reduced fresh air backflow. One-way valves are positioned in the EGR loop to reduce or avoid fresh-air backflow into the dedicated exhaust gas recirculating cylinder and/or positioned in the engine intake passage to reduce or avoid dedicated cylinder exhaust gas backflow into the intake passage. 

Patent Number: 
10,495,035
Date Of Issue: 
12/03/2019