LIQUID SPRAY DEVICE WITH FIXED AND ROTATABLE DIFFUSERS

摘要

A floating aerator includes an axial flow impeller rotated by an electric motor and disposed within a tubular throat to pump a column of water from a pond upwardly through the throat and against a stationary or fixed diffuser positioned above the upper outlet of the throat. The fixed diffuser divides the column of water into a central core which passes through a neck portion of the diffuser and an outer sleeve which is deflected outwardly of the throat by an annular baffle encircling the upper end of the neck. The baffle extends outwardly from the neck in a generally horizontal direction to guide the deflected water in a relatively flat trajectory to cause the water to strike the surface of the pond with considerable force. A rotatable diffuser positioned above the fixed diffuser coacts therewith to sling the central core of water outwardly relative to the throat in a path above and converging downwardly into the water deflected by the baffle.