AERATOR AIR SUPPLY DEVICE Russian patent published in 1994 - IPC

FIELD: mechanical engineering; apparatuses for dissolving air oxygen in water. SUBSTANCE: aerator air supply device incorporates hollow shaft housed in aerator. Lower end portion of hollow shaft is connected to aerator rotor and its upper end portion is associated with funnel inside which are rigidly secured outer end portions of master axial-flow fan blades. Electric motor is linked to casing and shaft and positioned coaxially above funnel, with its fore portion looking downwards. Inner end portions of blades are rigidly secured to electric motor housing. Working wheel of auxiliary axial-flow fan is mounted on electric motor shaft. Auxiliary axial-flow fan blades are disposed below and close to master axial-flow fan blades. EFFECT: more sophisticated design. 1 dwg