Wind turbine with outer noise shell

Details Wind turbine with outer noise shell Wind turbine with outer noise shell

2006-12-05

2006-12-05

Edgar, Richard A. (Department: 3745)

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

C416SDIG004, C415S909000

Reexamination Certificate

active

07144216

ABSTRACT:
For reduction of the noise radiation of a wind turbine with a tower (1) having an outside (8), a noise shell (4) is provided, which at least partially surrounds the outside (8) of the tower (1) and is positioned at a distance from the outside (8) of the tower (1). An air gap (24) remains between the tower wall (2) and the noise shell (4). The noise emitted from the tower wall (2) is absorbed by the noise shell (4). The noise shell can be composed of a waterproof outer layer (6) and a damping layer (10) directed towards the tower wall (2).

REFERENCES:
patent: 4180369 (1979-12-01), Ottosen
patent: 6213721 (2001-04-01), Watkinson
patent: 6998729 (2006-02-01), Wobben
patent: 2003/0111843 (2003-06-01), Tallal et al.

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