Fluid flow machine wheel and uses thereof

Abstract

A fluid flow machine wheel as for an immersion agitator or for a waste water, slurry, sewage or feces pump or for a recirculation pump, comprises a shaft hub having an inner hub portion and an outer hub portion, between which there is disposed a hub damping element comprising an elastic material. Blades project from the outer hub portion. Blade damping elements of elastic material are provided between the outer hub portion and each respective blade. The fluid flow machine wheel may have either only the hub damping element or only the blade damping elements. The damping element or elements at least reduce vibration of or damage to the wheel or its drive motor, transmission, mountings for same and so forth, caused by uncontrolled hydraulic conditions or properties and afflux flows.

Dependencies are inferred from the claim text.