Passively cooled direct drive wind turbine

Details Passively cooled direct drive wind turbine Passively cooled direct drive wind turbine

2005-11-28

2008-03-18

Waks, Joseph (Department: 2834)

Prime-mover dynamo plants

Fluid-current motors

Wind

Reexamination Certificate

active

07345376

ABSTRACT:
A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air over the fin. The fin is further tapered to allow a constant portion of the fin to extend beyond the air stream boundary layer. Turbulence initiators on the nose cone further enhance heat transfer at the fins.

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patent: 5331238 (1994-07-01), Johnsen
patent: 7033139 (2006-04-01), Wobben
patent: 2003/0141721 (2003-07-01), Bartlett
patent: 2004/0179934 (2004-09-01), Wobben
patent: 2006/0001269 (2006-01-01), Jansen et al.
patent: 2838252 (2003-10-01), None
patent: 09261915 (1997-10-01), None
patent: WO 9740569 (1997-10-01), None

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