| 摘要 |
PROBLEM TO BE SOLVED: To provide a venturi for exhaust recirculation capable of recovering a pressure of fresh air to the substantially same state as an original pressure.SOLUTION: A venturi 10 for exhaust recirculation provided on a connection part of an exhaust recirculation passage 6 connected to an exhaust passage 3 of an internal combustion engine 1 and an intake passage 2 of the internal combustion engine 1 includes: a nozzle 11 provided in the intake passage 2 and narrowing the passage area of the intake passage 2; a diffuser 12 connected to the downstream end of the nozzle 11 and increasing the passage area of the intake passage 2 toward the downstream side of the intake passage 2; and an exhaust gas supply path 13 whose base end is connected to the exhaust recirculation passage 6 and whose tip end is opened to the center part of the nozzle 11. |
