Patent ID: 8210157
Filing Date: 2012-07-03
Classification: F02M

Abstract:
1. An exhaust gas recirculation system of an internal combustion engine where a cylinder head having a plurality of intake ports and a plurality of exhaust ports is coupled to a cylinder block, and a portion of an exhaust gas exhausted from the exhaust port is flowed into the intake port through one control valve, comprising: a recirculation gas gallery integrally formed at the cylinder head and communicated with each intake port and receiving the exhaust only from the one control valve; a plurality of recirculation gas extracting units formed in the cylinder head between the exhaust ports and the one control valve and respectively communicated with each exhaust port, the recirculation gas extracting units being continuously communicated with each other; the one control valve adapted to control an amount of the portion of the exhaust gas so as to control a supply amount of the exhaust gas to the recirculation gas gallery; an inflow pipe connected to one of the plurality of the recirculation gas extracting units and to the one control valve; and a supplying pipe provided with an end communicated with the control valve and the other end thereof communicated with the recirculation gas gallery.