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Simon Srybnik, Louis Srybnik: Transportable hydro-electric generating system with improved water pressure enhancement feature. Nancy A Pappas, December 16, 2008: US07466035 (14 worldwide citation)

The invention is a transportable hydroelectric power generating system which is capable of being fully or partially assembled in a factory setting and then transported to a water stream. The system includes water channeling features which enhance the pressure within the system that the water exerts ...


33
William Lowell Kelly: Apparatus for hydroelectric power production expansion. Diller Ramik & Wight, January 20, 2009: US07478974 (12 worldwide citation)

Normally hydroelectric dam powerhouses use river flow once before discharging it as turbulent tailwater, ineffective to spin turbines. The present invention uses tapered channels to confine and constrict turbulent tailwater into laminar flow that drives turbines both submersible and floatable utiliz ...


34
Othon Luiz Pinheiro da Silva: Immersed magnet ring secured to radially outermost ends of hydraulic turbine blades and gap between rotor and stator filled with water. Aratec Engenharia Consultoria e Representacoes Ltda, Ronald E Smith, Smith & Hopen P A, October 23, 2012: US08294290 (12 worldwide citation)

“IMPROVEMENT IN ELECTRICAL EQUIPMENT GENERATOR OF ELECTRICAL POWER”, the invention herein refers to improvements in electrical power generating equipment which, due to the construction adopted, allows simplified maintenance at reduced frequency; in addition to useful application in several types of ...


35
Dolder Guido, Schmalzi Alfred: Butterfly valve. Escher Wyss, Ostmann Robert A, Dodge Austin P, February 26, 1974: US3794288 (12 worldwide citation)

Butterfly valve for ducts of hydroelectric power stations, with a web in said duct, extending transversely of said duct and being rigidly secured to said duct, and a flap pivotably mounted on said web; a drive mechanism comprising a servo-motor and first connecting means between said flap and said s ...


36
Yukinobu Yumita: Small hydroelectric power generator. Sankyo Seiki Mfg, Reed Smith, July 27, 2004: US06768218 (12 worldwide citation)

According to the small hydroelectric power generator of the present invention, each of the outer peripheral portions of the hydraulic turbine which oppose to the ejecting openings are made in an edge shape. Therefore, the ejecting openings will not be blocked by the outer peripheral portions of the ...


37
Arthur F Johnson: Methods for producing hydroelectric power. September 3, 1996: US05551237 (11 worldwide citation)

A process of converting steam to hydro-electric power through a process of allowing steam to displace water from a tank for operating a turbine or pelton wheel. The process allows hydro-electric power to be generated at a greatly increased efficiency. Preferably, two concrete, underground chambers a ...


38
Peter M Borgren: Portable hydrogenerating apparatus. Hydrodynamic Energy Systems, Schwartz Jeffery Schwaab Mack Blumenthal & Koch, April 13, 1982: US04324984 (11 worldwide citation)

Apparatus for generating hydroelectric power comprising a portable collector tube assembly which can be transported to the site of a water source having a waterfall sufficient in magnitude to provide a pressure head for driving a turbine generator. The tube assembly comprises telescopically arranged ...


39
Dyson Jacob: A hydroelectric power system. Dyson Jacob, November 5, 1997: GB2312711-A (11 worldwide citation)

Apparatus for generating electricity comprises a housing 1 which is fitted to an existing drainpipe of a building for locally generating electricity for use within the building. The housing comprises fitting brackets 3, 5 for providing a releasable seal with ends of a drainpipe so that the fluid flo ...


40
Arthur M Wolf: Siphon hydroelectric generator. Leydig Voit & Mayer, March 19, 2002: US06359347 (11 worldwide citation)

A method and apparatus for generating hydroelectric power from a water source by lifting water from a relatively lower position to a second relatively raised position. The water is moved in a generally upward direction stepwise from a lowermost tier to an uppermost tier in a plurality of stacked tie ...