Integrated air injection and exhaust gas recirculation system

摘要

A system for integrating air injection and exhaust gas recirculation in the internal combustion engines of vehicles, such as in a contemporary automobile or truck. The integration system includes conduit members connecting a source of pressurized ambient air with the exhaust system of the engine, to supply the ambient air into the exhaust system during deceleration. A flow control member prevents the flow of the exhaust gases backward along the conduit members toward the pressurized air source, during acceleration or cruising to promote flow of the exhaust gases through the EGR valve and into the intake system of the engine.