| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a blow-by gas reflux device for an internal combustion engine capable of reducing the amount of deposit accumulating in an intake passage constituent member by reducing the amount of small particle size oil mist which is returned to the intake passage with blow-by gas.SOLUTION: A blow-by gas reflux device has a part 70 for making mist large particle size including a spring member 71. The spring member 71 comprises a hollow tube as an element wire wound in a coil shape, it is arranged between a second gas passage part 52 and a third gas passage part 53 so that blow-by gas is returned to an intake passage, after passing from the outside of a diameter direction (outer diameter side) to the inside of the diameter direction (inner diameter side) of the spring member 71, and it jets oil from a jet port 71a provided at the element wire (the hollow tube) toward a surface of the adjacent element wire. Small particle size mist included in the blow-by gas collides with the surface of the spring member and the oil in the element wire and becomes large particle diameter size or gets liquefied when passing the spring member 71.</p> |
