Francis wheel and hydraulic machine comprising one such wheel

Details Francis wheel and hydraulic machine comprising one such wheel Francis wheel and hydraulic machine comprising one such wheel

2007-05-22

2007-05-22

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C416S185000, C416S19800R, C416SDIG004, C415S208300

Reexamination Certificate

active

10527688

ABSTRACT:
A Francis runner that includes a crown, a band and blades which extend between the crown and the band. An angle (β24) between a linear speed (U, D224) of one of the blades and a median of the blade at the trailing edge, has a value between 20 and 25°. As a result, a machine utilizing the Francis runner of the invention is efficient, while an equivalent power under high load is high.

REFERENCES:
patent: 1509653 (1924-09-01), Kaplan
patent: 1929098 (1933-10-01), Moody
patent: 3610775 (1971-10-01), Swearingen
patent: 3874819 (1975-04-01), Tamura et al.
patent: 4108570 (1978-08-01), Yamabe
patent: 4479757 (1984-10-01), Holmes et al.
patent: 6135716 (2000-10-01), Billdal et al.
patent: 281 316 (1926-06-01), None
patent: 58160560 (1983-09-01), None
patent: 61101680 (1986-05-01), None
patent: 63075362 (1988-04-01), None

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