| 摘要 |
PROBLEM TO BE SOLVED: To attain a system ventilating blowby gas even during supercharging in a simple structure.SOLUTION: This blowby gas recirculation device 6 includes: a PCV passage 61 allowing inner chambers 7, 8 storing the blowby gas to communicate with an intake passage 3 and also provided with a PCV valve 611; a first blowby passage 62 allowing the inner chambers 7, 8 to communicate with a predetermined portion 34 upstream of a compressor 51 in the intake passage 3; and a second blowby passage 63 allowing the inner chambers 7, 8 to communicate with a portion 35 separated further from an upstream side from the predetermined portion 34. When performing the supercharging by a supercharger 5, the PCV valve 611 is closed. Thereby, fresh air is introduced from the intake passage 3 to the inner chambers 7, 8 via the second blowby passage 63, and the blowby gas is delivered from the inner chambers 7, 8 to the intake passage 3 via the first blowby passage 62. |
