公开(公告)号：US11136945B2

公开(公告)日：2021-10-05

申请号：US16444391

申请日：2019-06-18

Applicant: GM Global Technology Operations LLC

Inventor： Michael Kaczmar ,  Kenneth M. Eastman ,  Jason Melecosky

IPC: F02M25/06 ,  F02M26/16 ,  F02M26/70 ,  F02F1/24 ,  F01N13/10

Abstract: An automobile vehicle engine exhaust system with integrated exhaust gas recirculation portion includes a cylinder head having a first exhaust passage internal to the cylinder head. The first exhaust passage is split within the cylinder head into a dedicated exhaust passage opening out of the cylinder head via a dedicated exhaust port, and an exhaust gas recirculation (EGR) exhaust passage opening out of the cylinder head via an EGR exhaust port. A valve assembly is operated to open one of the dedicated exhaust port or the EGR exhaust port while closing the other one of the dedicated exhaust port or the EGR exhaust port.