| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil separator which efficiently recovers oil mist in blow-by gas despite of sizes of particles.SOLUTION: An oil separator includes a supply space As into which blow-by gas is supplied. A plurality of cyclone type oil separator units B each including a cylindrical case part 5 which has a cylindrical shape and into which the blow-by gas is supplied from the supply space As are arranged along a gas supply direction. Internal diameters of the cylindrical case parts 5 of the oil separator units B are set to be larger in the upper stream in the gas supply direction F. |
