Vertical axis wind turbine system

Details Vertical axis wind turbine system Vertical axis wind turbine system

2011-03-01

2011-03-01

Nguyen, Ninh H (Department: 3745)

Rotary kinetic fluid motors or pumps

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

Natural fluid current force responsive

C415S004400, C416S13200B, C416S22700R, C416S22700R, C416S240000, C416S243000

Reexamination Certificate

active

07896609

ABSTRACT:
The present invention is a vertical wind turbine having a turbine with a plurality of blades or wind vanes. The blades are constructed and attached to the shaft of the turbine so as to allow them to twist open to present more surface area to wind currents when a threshold rotational velocity is reached. Also presented are a novel outer shell that is placed over at least part of the shaft and a novel turbine blade.

REFERENCES:
patent: 4115032 (1978-09-01), Lange
patent: 4281965 (1981-08-01), Stjernholm
patent: 4525911 (1985-07-01), Sisson et al.
patent: 5203672 (1993-04-01), Wolf
patent: 7007889 (2006-03-01), Charron

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