| 摘要 |
PROBLEM TO BE SOLVED: To inhibit a moisture content contained in a blow-by gas from freezing or icing and blocking a blow-by gas introduction port or being bitten by a throttle valve so that layout of an air intake system is not subject to any restriction.SOLUTION: In an air intake system for a multi-cylinder engine, an internal surface of an intake air introduction pipe 7 is formed with the blow-by gas introduction port and is also provided with a gas passage forming member 28 for forming a flat-sectional gas passage through which a blow-by gas introduced from the blow-by gas introduction port passes between the internal surface of the intake air introduction pipe 7 and the blow-by gas introduction port.SELECTED DRAWING: Figure 3 |
