Exhaust gas recirculation system for an internal combustion engine
An exhaust gas recirculation system for an internal combustion engine comprises an exhaust driven turbocharger having a low pressure turbine outlet in fluid communication with an exhaust gas conduit. The turbocharger also includes a low pressure compressor intake and a high pressure compressor outlet in communication with an intake air conduit. An exhaust gas recirculation conduit fluidly communicates with the exhaust gas conduit to divert a portion of exhaust gas to a low pressure exhaust gas recirculation branch extending between the exhaust gas recirculation conduit and an engine intake system for delivery of exhaust gas thereto. A high pressure exhaust gas recirculation branch extends between the exhaust gas recirculation conduit and the compressor intake and delivers exhaust gas to the compressor for mixing with a compressed intake charge for delivery to the intake system.
- Research Organization:
- GM Global Technology Operations LLC (Detroit, MI)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-07NT43271
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Number(s):
- 8,443,789
- Application Number:
- 12/842,169
- OSTI ID:
- 1084040
- Country of Publication:
- United States
- Language:
- English
Fast warm-up of diesel aftertreatment system during cold start
|
patent | August 2007 |
Exhaust gas control apparatus for internal combustion engine
|
patent | November 2008 |
Similar Records
Turbocharged engine exhaust gas recirculation system
Intake manifold for internal combustion engine having exhaust gas recirculation system