| 摘要 |
This invention relates to an exhaust recirculation system for a multi-cylinder internal combustion engine (1), wherein intake air aspirated to a collector (4) from an intake passage (6) of circular cross-section is provided to cylinders (#1-#4) via branch pipes (5A-5D) connected the collector (4). The exhaust gas recirculation system is provided with an exhaust gas recirculation pipe (7) which branches off from an exhaust passage (3) and connected to the intake passage (6), and an exhaust gas inlet (8, 9) which leads a recirculated exhaust gas of the exhaust recirculation pipe (7) into the intake passage (6) along a tangent line of the circular cross-section of the intake passage (6).
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