Invention Grant
- Patent Title: Cylinder head with integrated exhaust manifold and dedicated exhaust gas recirculation port
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Application No.: US16444391Application Date: 2019-06-18
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Publication No.: US11136945B2Publication Date: 2021-10-05
- Inventor: Michael Kaczmar , Kenneth M. Eastman , Jason Melecosky
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Vivacqua Crane
- Main IPC: F02M25/06
- 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.
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