Vertical axis wind turbine motor
OwnerRollin Douglas Rumseyinventor
Life of this patent
Estimating the term…
Abstract
A wind power conversion turbine motor has a body supported to rotate about a vertical axis and carrying a plurality of substantially upright vanes substantially spaced from the vertical axis and circumferentially spaced from one another so that wind thrusting propulsively against outer sides of the vanes can move across the space circumscribed by the vanes and thrust propulsively against inner sides of the vanes on leaving the space, thereby attaining dual power advantage from substantially all wind that strikes the turbine. Each of the plurality of vanes is pivotally carried on the body, with a control means to maintain a substantially constant vane angle of attack to a relative wind vector.
Claims28
A wind power conversion turbine comprising:
- a rotary body;
- means supporting said body for rotation about a vertical axis;
- a plurality of substantially upright propulsion vanes swingably carried by said body on individual axes substantially spaced from said vertical axis and circumferentially spaced from one another about an open space;
- said vanes having first generally radially outwardly facing surfaces and second generally radially inwardly facing surfaces, whereby the first surfaces propulsively intercept thrusting air on the windward side of said body and air passing between the spaced vanes and sweeping across the open space propulsively thrusts against said second surfaces of the vanes on the leeward side of the body, thereby converting wind energy into torsional force to drive the turbine rotatably about said vertical axis;
- feathering means urging the propulsion vanes into tangential positon relative to the circumference of the turbine while allowing deflection of the propulsion vanes to the leeward under wind loads to limit torque developed by said vanes to limit rotational speed of the turbine and to protect against damaging wind loads;
- and
- a shock absorbing means having one end thereof secured to said body and having a second end connected to a pivot means, said pivot means comprising the individual axis for said propulsion vanes, wherein said shock absorbing means is arranged to retard wind induced swinging movements of the vanes away from their tangential position as relative wind direction shifts through each revolution of the rotary body.
A wind power conversion turbine, comprising:
- a rotary body;
- means supporting said body for rotation about a vertical axis;
- a plurality of substantially upright propulsion vanes swingably carried by said rotary body on individual swing axes equally spaced from one another about the circumference of the rotary body, said vanes having wind intercepting surfaces thereon to convert wind energy into torsional force to drive the rotary body about said vertical axis and provide output torque for said turbine;
- and means for controlling the swinging movements of the vanes including a feathering means allowing deflection of the propulsion vanes to the leeward under wind loads and a shock absorbing means arranged to retard wind induced deflection of the propulsion vanes at an appropriate rate whereby the vanes are regulated to provide a generally optimum wind intercepting angle in accordance with each vane's position of rotation and through a wide range of wind velocities.
Dependencies are inferred from the claim text.