ENGINE SYSTEM

摘要

The present invention relates to an engine system which uses a turbo charger and recirculates an exhaust gas to improve output, combustion efficiency, and quality of the exhaust gas in a low speed area. An engine system may include: a first intake line connected to an intake manifold supplying the intake manifold disposed on a cylinder block with the outside air; an intake bypass valve disposed on the first intake line; a second intake line which bypasses the first intake bypass valve to the intake manifold; a first exhaust line through which exhaust gas flows from an exhaust manifold disposed on the cylinder block; an exhaust bypass valve disposed on the first exhaust line; a second exhaust line connected to the exhaust manifold and bypasses the exhaust bypass valve; a turbo charger disposed between the second intake line and the second exhaust line operated by the exhaust gas passing the second exhaust line pump intake air flowing the second intake line; and a control portion which controls the intake bypass valve and the exhaust bypass valve depending on a driving condition.