| 摘要 |
A mill that reacts to fluid flow to create energy includes a vertically oriented hub and an arm attaching to and rotating with the hub in a horizontal plane. A plate is attached to the arm, and a vane cooperates with the plate. The vane includes a curved suction side, a planar pressure side, a leading edge, and a trailing edge. Within any 90 degree rotation of the arm, the vane rotates relative to the arm no more than 45 degrees. |
| 主权项 |
1. A mill reacting to fluid flow to create energy, the mill comprising:
a vertically oriented hub; an arm attaching to and rotating with the hub in a horizontal plane; a vane situated on the arm to be movable relative to the arm and rotatable with the arm as the arm rotates in the horizontal plane, the vane having a curved suction side, a planar pressure side, a leading edge, and a trailing edge, the vane comprises an axle about which the vane may rotate; a control member comprising a pin that limits movement of the vane relative to the arm, wherein within any 90 degree rotation of the arm the vane rotates relative to the arm no more than about 45 degrees; the mill comprises a plate having an opening in which the pin traverses; the vane is moveable during rotation of the arm into
a first position in which the trailing edge of the vane faces into the fluid flow,the pressure side is parallel to the fluid flow and the fluid flow across the suction side produces lift to urge the vane to rotate the hub, anda second position in which the pressure side is perpendicular to the fluid flow in which drag is maximized to urge the vane to rotate the hub; rotation of the vane about the axle is limited by interaction between the pin and the plate; and in the first position the pin is disposed against a first end of the opening and the pin is disposed against a second, opposite end of the opening when the vane is in the second position. |
