초록 ▼

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 selec

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.

대표청구항 ▼

[ What is claimed is:] [1.] An exhaust gas recirculation system in a pressure-charged internal combustion engine, said pressure-charged internal combustion engine including an intake air circuit having an intake air pressurizing device, an intake manifold, an exhaust manifold, a plurality of combust

[ What is claimed is:] [1.] An exhaust gas recirculation system in a pressure-charged internal combustion engine, said pressure-charged internal combustion engine including an intake air circuit having an intake air pressurizing device, an intake manifold, an exhaust manifold, a plurality of combustion chambers, said exhaust gas recirculation system comprising:an exhaust gas recirculation conduit for diverting a flow of exhaust gas from at least one selected combustion chamber to said intake air circuit at a location downstream of said intake air pressurizing device;at least one exhaust gas recirculation diversion valve interposed between said selected combustion chamber and said exhaust gas recirculation conduit;a controller operatively associated with said exhaust gas recirculation diversion valve and adapted for selectively diverting said flow of exhaust gas from said selected combustion chamber to said exhaust gas recirculation conduit; andan intake air bypass conduit in fluid communication with said intake air circuit for selectively transporting a flow of intake air from said intake circuit to said exhaust manifold.