| 摘要 |
PROBLEM TO BE SOLVED: To eliminate some disadvantages found in the prior art vertical axis wind turbine already filed as a patent application in which a method for increasing a blade rotating force causes a wind amount adjustment guide to be installed at a side where a negative force acts against a rotation of blades to reduce a direct resistance against the blades to increase a rotating force, and keeping balance toward a wind direction is difficult and shows a lack of stability due to its role for preventing direct striking of wind against the blades.SOLUTION: This invention relates to a vertical axis wind turbine in which it has a central shaft receiving block and a head part fixing frame, a plurality of semi-elliptical blades inclined toward the central shaft having a roller bearing at its upper part and a roller bearing at its lower part by upper and lower arms, a blade rotation auxiliary body having a roller bearing fixed to its upper part and lower part to act against the wind direction. Lift force and a drag are alternatively generated at the blades by wind blown out of blowout ports equally-spaced apart at the blade rotation auxiliary body so as to increase a blade rotating force. |
