초록 ▼

Fluid turbine devices and methods related to fluid turbine devices are disclosed herein. One example method includes deflecting a first portion of a fluid flow from a return path of at least a portion of a vertical blade assembly, while permitting a second portion of the fluid flow to enter a drive

Fluid turbine devices and methods related to fluid turbine devices are disclosed herein. One example method includes deflecting a first portion of a fluid flow from a return path of at least a portion of a vertical blade assembly, while permitting a second portion of the fluid flow to enter a drive path of the vertical blade assembly. One example fluid turbine device includes a vertical blade assembly having multiple blades and a shroud rotatable relative to the vertical blade assembly. The shroud includes a leading edge portion for deflecting a first portion of a fluid flow from entering a return path of at least a portion of the vertical blade assembly and a portion defining multiple openings configured to permit fluid from within a compartment defined by the vertical blade assembly to exhaust out of the return path.

대표청구항 ▼

What is claimed: 1. A fluid turbine device comprising:a vertical blade assembly having multiple blades; anda shroud rotatable relative to the vertical blade assembly, the shroud including:a leading edge portion for deflecting a first portion of a fluid flow from entering a return path of at least a

What is claimed: 1. A fluid turbine device comprising:a vertical blade assembly having multiple blades; anda shroud rotatable relative to the vertical blade assembly, the shroud including:a leading edge portion for deflecting a first portion of a fluid flow from entering a return path of at least a portion of the vertical blade assembly; anda portion defining multiple openings configured to permit fluid from within a compartment defined by the vertical blade assembly to exhaust out of the return path;wherein the vertical blade assembly includes first and second end plates disposed on opposite ends of the multiple blades; andwherein at least one of the end plates includes at least one mass moveable towards a perimeter of the second end plate when the vertical blade assembly is rotating.