초록 ▼

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 effici

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.

대표청구항 ▼

A wind turbine, comprising: a vertical axis rotor assembly coupled to a rotatable drive shaft for driving electrical power generating means; first wind deflector means mounted on said wind turbine normally positioned generally upwind and to one side of said rotor assembly for initially reflecting wi

A wind turbine, comprising: a vertical axis rotor assembly coupled to a rotatable drive shaft for driving electrical power generating means; first wind deflector means mounted on said wind turbine normally positioned generally upwind and to one side of said rotor assembly for initially reflecting wind current into said rotor assembly; second wind deflector means mounted on said wind turbine normally positioned on another side of said rotor assembly to redirect the initially deflected wind current into said rotor assembly, said first and second wind deflector means normally spaced from each other by a certain inter-deflector spacing; and mounting means for mounting said first and second wind deflector means in said normal positions, said mounting means including an outer shaft through which said drive shaft extends and which is normally fixed with respect thereto, said outer shaft having at least one lower groove winding in one of a left-hand or right-hand direction, said at least one lower groove constituting a first lower groove set, and at least one upper groove winding in the other of the left-hand or right-hand direction, said at least one upper groove constituting a second upper groove set, and first lower and second upper connector rings coupled to said first and second wind deflector means respectively, and mounted on said outer shaft proximate to said first and second groove sets respectively, said first and second connector rings including guide means cooperating with said at least one groove of said first and second groove sets respectively, said mounting means allowing at least one of said first and second wind deflector means to automatically move relative to each other and from its respective normal position when the velocity of the wind current exceeds a first predetermined value to increase said inter-deflector spacing and causing said at least one of said first and second wind deflector means to automatically return to its respective normal position when the velocity of the wind current diminishes to a value below said first predetermined value.