Abstract: An oil mist eliminator includes an impeller rotating about its axis in one direction within a casing having an inlet and an outlet. The impeller includes a plurality of circumferentially spaced blades held between front and rear discs. The front disc has a center opening for introducing an oil-contaminated air. Each blade is composed of an inner fin extending in a radial direction and an outer fin bent from the inner fin for deflecting the air proceeding between the adjacent inner fins in a forward direction, thereby creating a forced air flow for introducing the air axially from the front opening, guiding it radially between the discs, and venting it axially forwardly in a front-in and front-out fashion. Thus, even a portion of the air being guided immediately along the rear disc can be successfully deflected for collision against the outer fins without fail, maximizing oil separation efficiency.

Abstract: An oil mist eliminator includes an impeller rotating about its axis in one direction within a casing having an inlet and an outlet. The impeller includes a plurality of circumferentially spaced blades held between front and rear discs. The front disc has a center opening for introducing an oil-contaminated air. Each blade is composed of an inner fin extending in a radial direction and an outer fin bent from the inner fin for deflecting the air proceeding between the adjacent inner fins in a forward direction, thereby creating a forced air flow for introducing the air axially from the front opening, guiding it radially between the discs, and venting it axially forwardly in a front-in and front-out fashion. Thus, even a portion of the air being guided immediately along the rear disc can be successfully deflected for collision against the outer fins without fail, maximizing oil separation efficiency.