Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Patent
1974-12-11
1976-04-20
Raduazo, Henry F.
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
415144, 415119, F04D 2966
Patent
active
039515664
ABSTRACT:
In a method of widening the zone of stable operation of an axial-flow fan, and of attenuating noise generated thereby, a portion of the flow medium is drawn off upstream of the fan and is returned to a zone at the periphery of the fan rotor. The invention also includes an axial-flow fan for carrying out the method.
REFERENCES:
patent: 2037940 (1936-04-01), Stalker
patent: 2720356 (1955-10-01), Erwin
patent: 3365172 (1968-01-01), McDonough et al.
patent: 3484039 (1969-12-01), Mittelstaedt
patent: 3690786 (1972-09-01), Silvestri, Jr.
patent: 3730639 (1973-05-01), Moore et al.
patent: 3846038 (1974-11-01), Carriere
Mattei Jean
Simon Bernard
Vuong nee Adlerberg Ingrid
Electricite de France (Service National
Raduazo Henry F.
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