Side-furling co-axial multi-rotor wind turbine

Details Side-furling co-axial multi-rotor wind turbine Side-furling co-axial multi-rotor wind turbine

2006-03-07

2006-03-07

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for controlling casing or flow guiding means in...

Axial flow runner

C416S19800R, C416S24400R

Reexamination Certificate

active

07008172

ABSTRACT:
A multiplicity of horizontal axis rotors are coaxially attached, at spaced intervals, to an elongate driveshaft. This driveshaft with attached rotors is aimed, not directly into the wind, but at a slightly offset angle, allowing each rotor to encounter a wind stream having fresh wind, substantially undisturbed by the wake of upwind rotors. That offset angle may be in the horizontal plane, and is maintained by a passive arrangement of components that may include a tail. In high winds the turbine is allowed to turn across the wind or furl sideways to protect it from overspeed. The space between rotors allows the turbine to be mounted atop an elevating structure wider than a normal tower. Such a wider mount may be a tripod tower, a guyed tower with guy wires attached to the tower at a point higher than the lowest point reached by the blades, or even a building.

REFERENCES:
patent: 628493 (1899-07-01), Smith
patent: 628497 (1899-07-01), Smith
patent: 893052 (1908-07-01), Carlson
patent: 1266518 (1918-05-01), Mulrony
patent: 3032119 (1962-05-01), Hachmann
patent: 3942026 (1976-03-01), Carter
patent: 4087196 (1978-05-01), Kronmiller
patent: 4213057 (1980-07-01), Are
patent: 4321005 (1982-03-01), Black
patent: 5222924 (1993-06-01), Shin et al.
patent: 6126385 (2000-10-01), Lamont

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