Abstract: A rotary, fluid-flow-to-mechanical/electrical power-conversion device including a generally cup-shaped, squirrel-cage rotor having a rotational axis, and including plural, circumferentially spaced, elongate, transverse-cross-sectionally arcuate airfoil (fluid-foil) blades sized and disposed about the rotational axis of the rotor with their respective long axes substantially paralleling the mentioned rotational axis. Blade-related dimensions and spacings are chosen whereby the ratio of blade-to-blade circumferential spacing a to blade transverse chord length b is characterized as one which: (a) resides in the general range of about 0.24 to about 0.4; or (b) resides, more preferably, within the somewhat narrower subrange of about 0.25 to about 0.35 within the mentioned general range; or (c) has, even more preferably (for use in many if not most circumstances), a value of about 0.33.

Abstract: A system and method (several variations) for interconverting moving fluid power and electrical power, involving, in one embodiment, an aerodynamic rotor integrated with an electrical rotor without an interconnecting rotating shaft, where the aerodynamic rotor can either take the form of (a) a selected style (several discussed herein) hoop-type rotor or (b) a fan-blade-type rotor, and in another embodiment, a hoop-like aerodynamic rotor coupled directly to the rotor in an electrical generator through a rotating shaft.

Abstract: A fluid energy turbine has a radial flow rotor in which fluid driven blades are peripherally distributed about a horizontal axis and in which auxiliary-biased outlet gates are provided for release of high fluid pressures to govern turbine speed such as in high windstorms.

Abstract: A wind energy turbine having air driven blades peripherally distributed about a horizontal rotational axis forming an interior region in which air pressures built up by wind introduced thereto are released through the spaces between the blades. The rotor is rotatably supported by rollers on a pair of parallel front and back stationary tubular rings which act as tracks for the rotor. An aerodynamically contoured entry ring at the front side of the rotor promotes smooth flow of air to the rotor interior and covers the front side ring and rollers mated therewith.

Abstract: Apparatus for peripherally supporting the rotor of a fluid driven turbine and for power take-off of energy by transformation of peripheral speed of the rotor to use such as to drive one or more electric generators to provide electric power output as determined by available wind energy.

Abstract: A wind energy turbine having air driven blades peripherally distributed about a horizontal rotational axis forming an interior region in which air pressures built up by wind introduced thereto are released through the spaces between the blades. A stationary back wall for the rotor includes biased air outlet gates for auxiliary release of high internal air pressures thereby limiting and governing rotational speed of the turbine such as in high storm winds. The rotor is rotatably supported by rollers on a pair of parallel stationary rings which act as tracks for the rotor. The entire rotor support assembly is mounted on a platform pivotable about a vertical axis by an associated wind vane arrangement for directing the turbine entry into oncoming winds.