| 摘要 |
A fluid turbine, comprising an inner shaft comprising a first number of concave vanes coupled thereto, the first number of concave vanes forming a number of rows of vanes, and an outer shaft, coaxial to the inner shaft, comprising a second number of concave vanes coupled thereto, the second number of concave vanes forming a number of rows of vanes in which adjacent rows of vanes alternate between the first number of vanes and the second number of vanes, in which the first number of vanes rotate axially in a first direction, in which the second number of vanes rotate axially in a second direction, and in which the concave surface of the first and second number of concave vanes define a fluid gathering surface. |
