EXHAUST GAS RECIRCULATION APPARATUS

摘要

Disclosed is an exhaust gas recirculation device for reducing NO_x. According to the present invention, the exhaust gas recirculation device includes: a reflux unit having a reflux path for recirculating exhaust gas from an engine exhaust manifold to an air suction manifold. The reflux unit comprises: a reflux jacket on one side of an engine cylinder head wherein an inlet is connected to a reflux pipe of the exhaust manifold; an EGR valve unit mounted on an outlet of the reflux jacket; and a pipe unit connecting the EGR valve unit and an air suction manifold flange. Each gasket having a reflux hole is installed between components forming the reflux unit. The reflux hole of the gasket has a diameter smaller than or equal to the inner diameter between the components in which the gasket is installed. The EGR valve unit comprises a temperature-sensitive valve controlling the reflux of exhaust gas by the reflux unit by being operated by an engine heat source.