초록 ▼

Past exhaust emission control systems fail to utilize exhaust gas recirculation during all operating parameters of an engine. The present exhaust gas recirculation system reduces the emissions emitted from an engine during all operating parameters of the engine. The engine includes a cylinder, a rot

Past exhaust emission control systems fail to utilize exhaust gas recirculation during all operating parameters of an engine. The present exhaust gas recirculation system reduces the emissions emitted from an engine during all operating parameters of the engine. The engine includes a cylinder, a rotatable crankshaft and a turbocharger defining a compressor section compressing a flow of intake air to a first preestablished pressure and being driven by a flow of exhaust gas having a first preestablished pressure. The exhaust gas recirculation system is comprised of a portion of the flow of exhaust gas being recirculated to the cylinder and forming a flow of recirculated exhaust gas. The flow of recirculated exhaust gas is cooled. The flow of recirculated exhaust gas is compressed to a second preestablished pressure being at least equal to the first preestablished pressure of the intake air. And, a quantity of the flow of recirculated exhaust gas is controlled depending on the operating parameter of the engine.

대표청구항 ▼

[What is claimed is:] [1.]increasing said preestablished pressure of said recirculating portion of said flow of exhaust gas to a second preestablished pressure being at least equal to said preestablished pressure of said intake air and said second preestablished pressure includes said recirculating

[What is claimed is:] [1.]increasing said preestablished pressure of said recirculating portion of said flow of exhaust gas to a second preestablished pressure being at least equal to said preestablished pressure of said intake air and said second preestablished pressure includes said recirculating portion being cooled and being increased by using a blower, said blower being driven at a speed being greater than a speed of said engine;monitoring an operating parameter of said engine; andcontrolling said recirculating portion of said flow of exhaust gas being recirculated to said intake air depending on said operating parameter of said engine.