Patent ID: 10167821

Abstract:
An engine system having an exhaust gas recirculation apparatus, the engine system including an engine including a plurality of combustion chambers that generates a driving power by combusting fuel, an intake line into which intake gas to be supplied into the combustion chamber flows, an exhaust line through which exhaust gas discharged from the combustion chamber flows, a turbocharger including a turbine provided in the exhaust line and rotated by exhaust gas discharged from the combustion chamber, and a compressor provided in the intake line and rotated in conjunction with the rotation of the turbine and compressing outside air, an EGR apparatus including an EGR line that branches off from the exhaust line at a rear end of the turbocharger and merges into the intake line, and an EGR cooler disposed in the EGR line for cooling exhaust gas flowing through the EGR line, a waste gate valve installed in an exhaust bypass line, which branches off from a front end of the turbine and merges into a rear end of the turbine, and adjusts an amount of exhaust gas flowing into the turbine, and a recirculation valve installed in an intake bypass line, which branches off the intake line at a front end of the engine and merges into the intake line at a front end of the compressor, and supplies a part of the intake gas, which is compressed by the turbocharger, into the intake line at the front end of the compressor.