| 摘要 |
PROBLEM TO BE SOLVED: To provide a blow-by gas treatment device and an intake manifold capable of facilitating operational check even when a blow-by gas passage is integrally formed with an internal combustion engine or the intake manifold.SOLUTION: In this device, a blow-by gas passage 15 is constituted by an engine gas passage integrally formed with an internal combustion engine, and an intake manifold gas passage 17 integrally formed with an intake manifold 12, and an inside of the internal combustion engine is communicated with an intake passage in the intake manifold 12. This device includes a PCV valve provided in the blow-by gas passage 15, a communication hole 40 communicating a gas flow direction downstream side portion (intake manifold gas passage 17) of the PCV valve in the blow-by gas passage 15 and the outside of the intake manifold 12, and a lid body 50 capable of opening and closing the communication hole 40.SELECTED DRAWING: Figure 8 |
