Horizontal axis wind turbine

Details Horizontal axis wind turbine Horizontal axis wind turbine

2008-04-29

2008-04-29

Ponomarenko, Nicholas (Department: 2834)

Prime-mover dynamo plants

Fluid-current motors

Wind

C290S044000

Reexamination Certificate

active

11472466

ABSTRACT:
Disclosed is a horizontal axis wind turbine of an downwind type having a rotor disposed downwind of a tower, comprising: a rotor having a hub and a blade; a nacelle to support the rotor rotatably through a main shaft connected to the hub; a cylindrical tower supporting to enable free yaw rotation of the nacelle; and an exhaust fan disposed on the nacelle, to exhaust an air inside the nacelle, wherein the cylindrical tower has a plurality of through-holes which are formed in a wall of the tower and scattered over an area of the wall along a circumferential direction thereof, to pass wind entering the rotor through the through-holes, and the exhaust fan is communicated with the through-holes through inner spaces of the tower and the nacelle, to generate aspiration force through the through-holes.

REFERENCES:
patent: 6320273 (2001-11-01), Nemec
patent: 6676122 (2004-01-01), Wobben
patent: 6902370 (2005-06-01), Dawson et al.
patent: 7161260 (2007-01-01), Kruger-Gotzmann et al.
patent: 7244102 (2007-07-01), Delucis
patent: 7276808 (2007-10-01), Weitkamp et al.
patent: 59-147879 (1984-08-01), None

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