11
Ejler Kristensen: Machine for generating electricity. Danregn Vidraft, Darby & Darby, July 12, 1988: US04757211 (37 worldwide citation)

In order to construct windmills with high capacity the machinery need to be constructed and dimensioned in such a manner that any type of damage to the machinery is avoided. This is best ensured by a hub construction, which according to the invention comprises a hub shaft (17) which to the front is ...


12
Andersen Henning: A pump, power plant, a windmill, and a method of producing electrical power from wind energy. Elsam, Andersen Henning, MIKKELSEN Jacob, March 23, 2006: WO/2006/029633 (35 worldwide citation)

Power plant (10) for the generation of electrical power using wind power or wind energy, comprising a plurality of windmills (12, 14, 16) each comprising a mill tower, a rotor (18, 20, 22) with a shaft (32) being rotatably journalled in said mill tower, a fluid pressure generator (34) mounted in sai ...


13
John E McAllister Jr: Vortex-augmented cooling tower-windmill combination. The United States of America represented by the United States Department of Energy, Allen F Westerdahl, February 12, 1985: US04499034 (34 worldwide citation)

A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical p ...


14
Dillyn M Elder: Water power generation system. September 10, 2002: US06448669 (33 worldwide citation)

The present invention relates to a turbine used to convert wind or fluid energy, and in some embodiments the kinetic energy of water, into mechanical energy, more specifically, a long axis type of vertical-axis turbine allowing large columns of air or water to be harnessed. These devices differ from ...


15
Frederick C Evans: Interlinked variable-pitch blades for windmills and turbines. November 10, 1981: US04299537 (27 worldwide citation)

Disclosed herein is a windmill comprising a vertical shaft mounted for rotation about its longitudinal axis, a number of blades each pivotally mounted for angular orientation about a longitudinal axis disposed parallel to the axis of rotation of the vertical shaft, supporting arms extending radially ...


16
Dillyn M Elder: Wind turbine system. Headwinds Corporation, March 25, 2003: US06538340 (27 worldwide citation)

The present invention relates to an improved turbine used to convert wind into mechanical energy, more specifically, a long axis type of vertical-axis turbine allowing large columns of wind to be harnessed. These devices differ from horizontal-axis (propeller) type windmills which typically rotate a ...


17
Gijsbert J Engelsman: Airship-windmill. Martin Smolowitz, September 11, 1984: US04470563 (24 worldwide citation)

From one or more lighter than air bodies, carrying wind energy catching rotor devices, like windmills, turbines or the like, the caught energy is mechanically transmitted to earth by at least one endless cable-rope transmission. Each of the cables is led over an individual sheave fitted to a turntab ...


18
Hendrik Lambertus Lagerwey: DC local grid for wind farm. Lagerway Windturbine, St Onge Steward Johnston & Reens, July 16, 2002: US06420796 (23 worldwide citation)

A wind farm is described in which two or more windmills are provided with each having a generator to generate electrical power. The energy supplied by the generators is output to a general a.c. grid which is set at a standard voltage. The electrical power supplied by the windmills is injected into t ...


19
Frederick C Evans: Flow augmenters for vertical-axis windmills and turbines. March 10, 1981: US04255085 (22 worldwide citation)

A windmill is disclosed, the windmill including a vertical shaft mounted for rotation about its longitudinal axis, a number of blades spaced circumferentially around the longitudinal axis, and being disposed generally parallel to the axis of rotation of the vertical shaft, and supporting arms extend ...


20
Improvements in and relating to windmills. Gottlieb Frank Zucker, June 19, 1924: GB217485-A (22 worldwide citation)

217,485. Zucker, G. F. Oct. 8, 1923. Current motors; regulating.-A windmill has a rotatable vertical shaft 20 which supports horizontal planes 24, 26, 32 between which are blades 40, 42, 44 hinged radially to the planes 26, 26, 24 respectively. Angular stops prevent the blades from swinging beyond t ...



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