Turbine and hydroelectric power plant for very low head

Rotary kinetic fluid motors or pumps – Including casing part selectively movable relative to fixed...

Reexamination Certificate

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C415S121100, C415S121200, C415S221000, C416S189000, C416S19800R

Reexamination Certificate

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07972108

ABSTRACT:
A turbine for a hydroelectric power plant intended to equip a water stream at the level of a very low head lower than 10 meters, and preferably from 1 to 5 meters, comprising a helix-shaped wheel, the ratio between the kinetic energy of the water flow coming out of the wheel and the potential energy of the head being smaller than 20%.

REFERENCES:
patent: 2054142 (1933-11-01), Sharp
patent: 2015332 (1935-09-01), Baumann
patent: 2897375 (1959-07-01), Fevre
patent: 3785747 (1974-01-01), Mayo, Jr.
patent: 4064403 (1977-12-01), Miller
patent: 4258271 (1981-03-01), Chappell et al.
patent: 4441029 (1984-04-01), Kao
patent: 4468153 (1984-08-01), Gutierrez Atencio
patent: 4629904 (1986-12-01), Rojo et al.
patent: 4648244 (1987-03-01), Mayo et al.
patent: 4764087 (1988-08-01), Pham-Phu
patent: 518877 (1921-06-01), None
patent: WO 91/09193 (1991-06-01), None
patent: WO 03/083291 (2003-10-01), None
International Search Report dated Oct. 4, 2005.

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