Vibration-dampened discharge ring for bulb hydraulic turbines

Details Vibration-dampened discharge ring for bulb hydraulic turbines Vibration-dampened discharge ring for bulb hydraulic turbines

1981-12-07

1984-06-12

Hornsby, Harvey C.

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

181256, F01D 510, F03B 1104

Patent

active

044538871

ABSTRACT:
A discharge ring for a hydraulic turbine is disclosed for reducing noise and vibration emanating from the discharge ring. The discharge ring comprises an inner and outer ring separated by spacer ribs. A plurality of cavities within the ring are provided, filled with a massive granular material such as sand. Removable plates along the outer ring permit filling and emptying the cavities to reduce the weight of the ring and facilitate removal of the ring for inspection and maintenance.

REFERENCES:
patent: 2808227 (1957-10-01), Danel
patent: 3949830 (1976-04-01), Muehlbauer et al.
patent: 4034826 (1977-07-01), Andrews
patent: 4174020 (1979-11-01), Challis
patent: 4314621 (1982-02-01), Hansen

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