| 摘要 |
A blow-by gas oil separator that can prevent oil discharged into an oil receiving chamber from flowing backward into a cyclone includes: multiple cyclones to which blow-by gas of an internal combustion engine is supplied, each cyclone including, in a lower portion, an oil discharge opening that separates out and discharges oil mist contained in the blow-by gas, and including, in an upper portion, a blow-by gas outlet that allows the blow-by gas to flow out after oil separation; an oil receiving portion opposing the oil discharge openings of the cyclones; a blow-by gas circulation portion in communication with the blow-by gas outlets of the cyclones, and is connected to an air intake passage of the internal combustion engine via a circulation valve; and partition walls in an oil receiving chamber formed by the cyclones and the oil receiving portion to separate adjacent oil discharge openings from each other. |
