Exhaust gas recirculation system for an internal combustion engi

Power plants – Internal combustion engine with treatment or handling of... – Material from exhaust structure fed to engine intake

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Details

606052, 123570, F01N 302, F02M 2507, F02B 3344

Patent

active

058028463

ABSTRACT:
A constant rate exhaust gas recirculation (EGR) system for a pressure-charged internal combustion engine is provided. The disclosed exhaust gas recirculation system includes one or more exhaust gas diversion ports, one or more EGR diversion valves each of which is operatively associated with a selected combustion chamber for diverting a flow of exhaust gas from the selected combustion chambers via an exhaust gas recirculation conduit to the intake air circuit of the pressure-charged internal combustion engine. The disclosed embodiment of the constant rate EGR system also includes a bypass conduit for diverting a flow of intake air to the exhaust manifold and an EGR cooler disposed in operative association with the recirculation conduit and the bypass conduit and adapted for cooling the volume of recirculated exhaust gas in the recirculation conduit while concurrently heating the intake air in the bypass conduit.

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