Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Responsive to condition of torque or thrust of device or...
Patent
1949-11-16
1979-07-17
Bentley, Stephen C.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Responsive to condition of torque or thrust of device or...
60 3918C, 102208, 415 30, 415 64, 416186A, F03D 102, F42C 1540
Patent
active
041613716
ABSTRACT:
1. A self-regulating turbine comprising an inner turbine rotor having outdly extending vanes with air passages between them, an outer rotor member concentric with and extending radially beyond said inner rotor and having limited circumferential motion relative to said inner rotor, said outer rotor member coupled to a load, bosses on said outer member disposed to substantially obstruct the outward flow of air from said air passages in one extreme circumferential position of said outer member, but not in the other extreme circumferential position of said outer member, said bosses shaped as to constitute an extension of said vanes when in said other extreme circumferential position whereby to increase the effectiveness of the rotor at low operating speeds, biasing means acting on said inner turbine rotor thereby urging said outer rotor into said last named position but opposed by air reaction on said vanes toward said first named position, said biasing means comprising a plurality of spring members circumferentially spaced in said outer rotor and directed inwardly thereof, a plurality of spaced studs affixed in said inner turbine rotor and projecting therefrom, said spring members arranged to engage successively said studs to secure non-linear biasing characteristics, and stop means preventing relative rotation of said outer rotor member beyond said other extreme position.
REFERENCES:
patent: 35366 (1962-05-01), Dickson
patent: 746388 (1903-12-01), Scheffler
Bentley Stephen C.
Edelberg Nathan
The United States of America as represented by the Secretary of
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