초록 ▼

Curved airfoils are mounted on members attached to a vertical shaft. The ends of the airfoils point outward from the shaft. The members are attached to the upper and lower sections of the airfoils and converge as they approach the shaft. This minimizes the shaft length above the turbines upper most

Curved airfoils are mounted on members attached to a vertical shaft. The ends of the airfoils point outward from the shaft. The members are attached to the upper and lower sections of the airfoils and converge as they approach the shaft. This minimizes the shaft length above the turbines upper most bearing and provides a balanced condition that distributes forces in such a manner which reduces airfoil stress.

대표청구항 ▼

A vertical axis wind turbine comprising a shaft mounted for rotation about a vertical axis, diagonal radial arms connected in pairs to the shaft and angularily spaced about the shaft, each pair of arms arranged to diverge as they extend outward from the shaft, each pair of arms have connected to its

A vertical axis wind turbine comprising a shaft mounted for rotation about a vertical axis, diagonal radial arms connected in pairs to the shaft and angularily spaced about the shaft, each pair of arms arranged to diverge as they extend outward from the shaft, each pair of arms have connected to its outer ends an airfoil, the airfoil curved and mounted vertically with its ends pointing away from the shaft; wherein upon rotation a vertical outward force vector is developed in the airfoil, also a vertical inward force vector is developed by the pull in the diagonal arms which is superimposed upon the airfoil, the airfoil and the diagonal arm\s parameters are set so that the inward and the outward vertical forces on the airfoil substantially counterbalance each other.