Fluid reaction surfaces (i.e. – impellers) – With fluid passage in working member communicating with... – Air and watercraft propellers
Patent
1998-05-20
2000-12-05
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
With fluid passage in working member communicating with...
Air and watercraft propellers
416186R, 416188, 416189, 416231R, 416232, 416233, 294695, 298897, 2988972, F01D 514, F01D 518
Patent
active
061557838
ABSTRACT:
A runner for a hydraulic turbine or pump includes a hub and a plurality of blades extending from the hub at spaced intervals therearound. Each blade includes an inner edge secured to the hub and a distal outer edge, a leading edge and an opposed trailing edge, and a curved suction surface and an opposed curved pressure surface. At least one of the blades is fabricated from a curved pressure-side member and a curved suction-side member secured together. The pressure-side member includes at least a substantial portion of the curved pressure surface and an opposed first inner surface. The suction-side member includes at least a substantial portion of the curved suction surface and an opposed second inner surface. The first and second inner surfaces face each other, and at least a portion of the first inner surface is spaced from at least a portion of the second inner surface to form a cavity within the blade. A method of making the hollow blade is also disclosed.
REFERENCES:
patent: 1579355 (1926-04-01), Greenawalt
patent: 1925777 (1933-09-01), Sperling
patent: 1942995 (1934-01-01), Biggs
patent: 2668079 (1954-02-01), Menegus et al.
patent: 2772863 (1956-12-01), Harney et al.
patent: 2803428 (1957-08-01), Garnett
patent: 2914301 (1959-11-01), Hess
patent: 3108146 (1963-10-01), Gross
patent: 3123651 (1964-03-01), Gross et al.
patent: 3132839 (1964-05-01), Haekal
patent: 3305215 (1967-02-01), Swiecicki et al.
patent: 3576065 (1971-04-01), Frazier
patent: 3628226 (1971-12-01), Nelson
patent: 3695778 (1972-10-01), Taylor
patent: 3736638 (1973-06-01), Stone, Jr.
patent: 3810286 (1974-05-01), Kaufman, Sr.
patent: 3862747 (1975-01-01), Richter
patent: 4043498 (1977-08-01), Conn, Jr.
patent: 4169047 (1979-09-01), Wilson
patent: 4188287 (1980-02-01), Faulkner et al.
patent: 4371480 (1983-02-01), Vos
patent: 4479757 (1984-10-01), Holmes et al.
patent: 4780051 (1988-10-01), Fisher, Jr.
patent: 5879130 (1999-03-01), Beyer et al.
patent: 5896657 (1999-04-01), Beyer et al.
patent: 5924842 (1999-07-01), Beyer et al.
Verdier Christopher
Voith Siemens Hydro Power Generation Inc.
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