Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Patent
1989-12-14
1991-04-30
Kwon, John T.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Vane or deflector
415 7, 415146, 416 85, 239 23, 239552, F01D 902
Patent
active
050113720
ABSTRACT:
A high volume aeration device comprises a motor and propeller tube suspended in a pond by a float. A propeller on the motor shaft and inside the propeller tube creates a generally hollow water output stream that rises out of the propeller tube. A diffuser plate is longitudinally slidable inside the hollow water output stream. The water output stream strikes the diffuser plate and locates it at an equilibrium location whereat the force of the water output stream on the diffuser plate periphery equals the weight of the diffuser plate. If the propeller cavitates, the reduced water output stream causes the diffuser plate to fall toward the propeller and redirect the water output stream to the propeller. The redirected water output stream reloads the propeller and enables the aeration device to resume full output without outside intervention after the cause of the cavitation has been eliminated. The aeration device further comprises a weed guard that prevents motor shaft entanglement with weeds or the like, and a perforated cap that directs the water output stream into a high vertical column having a predetermined pattern.
REFERENCES:
patent: 3101173 (1963-08-01), Jennings
patent: 3706415 (1972-12-01), Hruby, Jr.
Application Ser. No. 333,267, file date 4/05/89, Applicant: Nicholas B. Nigrelli.
Nigrelli Nicholas B.
Wasmer David
Kwon John T.
Nigrelli Systems Inc.
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