Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Patent
1999-05-18
2000-12-26
Verdier, Christopher
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
415163, 4151731, 416168A, 416174, 416244A, 416245A, F03B 306, F03B 318, F03B 1510, F03B 1514
Patent
active
061649074
ABSTRACT:
A turbine installation having reduced inner and outer gaps comprises a water passageway and a turbine runner disposed in the passageway downstream of a discharge ring. The turbine runner includes a hollow hub having spaced apart inner and outer surfaces and a longitudinal axis and a plurality of runner blades. Each blade comprises a hydrofoil having an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is pivotally connected to the hub about a rotational axis extending in a direction generally perpendicular to the longitudinal axis so that its inner edge is proximate the hub. Each blade is rotatable between a maximum pitch position and a minimum pitch position. The discharge ring has a spherical configuration cooperable with the outer edge of each of the blades to reduce an outer gap formed between the outer edge of each of the blades and the passageway. The hub may be configured as a sphere downstream of the blade rotational axes to reduce an inner gap formed between the inner edge of each of the blades and the hub. The hub may also include a plurality of pockets or raised areas formed on the outer surface of the hub to reduce the inner gap formed between the inner edge of each of the blades and the hub.
REFERENCES:
patent: 1901773 (1933-03-01), Pfau
patent: 2090093 (1937-08-01), Andrews
patent: 2290666 (1942-07-01), Ashelman et al.
patent: 2378958 (1945-06-01), Troller
patent: 2382535 (1945-08-01), Bauer
patent: 2470517 (1949-05-01), Obrist
patent: 2498072 (1950-02-01), Dean
patent: 2776107 (1957-01-01), Willi
patent: 3578342 (1971-05-01), Satterthwaite
patent: 3632120 (1972-01-01), Brandt
patent: 3642291 (1972-02-01), Zeffer et al.
patent: 3822104 (1974-07-01), Poet
patent: 4174137 (1979-11-01), Ferris
patent: 4419053 (1983-12-01), Swearingen, Jr.
patent: 4436313 (1984-03-01), Tamama et al.
patent: 4453887 (1984-06-01), Schucker
patent: 4509925 (1985-04-01), Wuhrer
patent: 5209640 (1993-05-01), Moriya
patent: 5226804 (1993-07-01), Do
patent: 5947679 (1999-09-01), Cybularz et al.
patent: 5954474 (1999-09-01), Fisher, Jr. et al.
Drawing #4296-B-1, dated Nov. 14, 1928, Runner Hub Assembly for Movable Blade Turbine.
Drawing #4296-B-3, dated Nov. 15, 1928 for Runner Hub.
Cybularz Joseph M.
Donelson Richard K.
Etter Siegbert
Fisher, Jr. Richard K.
Grubb Robert G.
Verdier Christopher
Voith Siemens Hydro Power Generation Inc.
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