Wind turbine

Details Wind turbine Wind turbine

1987-03-23

1989-07-25

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

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

Natural fluid current force responsive

416 41, F03D 706

Patent

active

048507920

ABSTRACT:
A vertical axis wind turbine includes a pair of wind deflectors for directing the wind current into the rotor assembly. The wind deflectors are connected to the wind turbine so that their positions are automatically adjusted as a function of wind velocity as well as wind direction to maximize efficiency. The wind deflectors automatically move to a position downwind of the rotor assembly during periods of unusually high wind velocity and actuate a rotational governor which increases the angular inertia of the turbine to limit the speed of the turbine shaft during such high wind conditions.

REFERENCES:
patent: 4474529 (1984-10-01), Kinsey
patent: 4652206 (1987-03-01), Yeoman

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