| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device capable of stably discharging condensate formed in an EGR passage while inhibiting reverse flow to the EGR passage. SOLUTION: The exhaust gas recirculation device 7 including the EGR passage 20 connecting an exhaust gas passage 5 at a downstream of a turbine 6b of a turbocharger 6 and an intake air passage 4 at an upstream of a compressor 6a of the turbocharger 6, provided with a trapper 24 collecting condensate and a tank 25 storing collected condensate, the tank 25 being connected to a discharge path 27 for discharging condensate, is provided with a pressure introduction path 28 introducing pressure of the intake air passage 4 at a downstream of the compressor 6a to the tank 25, an open-close valve 36 opening and closing the pressure introduction path 28, and a check valve 34 which is arranged between the trapper 24 and the tank 25, and blocks the flow from the tank 25 to the trapper 24 while allowing flow from the trapper 24 to the tank 25. COPYRIGHT: (C)2009,JPO&INPIT
|
