| 20110084492 | Vertical Propeller Fluid Energy Capture with Coordinated Dynamic-Orientation Blades - A vertical propeller system for capturing wind energy includes a coupling module coupled to a drive shaft to impart rotational energy to the drive shaft. The drive shaft rotates about a substantially vertical main axis. A first blade couples to the coupling module and rotates about a first blade axis. The first blade progresses through a first continuous, repeating sequence of first blade orientations, which include a first substantially vertical orientation and a first substantially horizontal orientation. The first substantially vertical orientation presents a maximal cross-section to a wind stream, the wind stream having a wind direction. The first substantially horizontal orientation presents a minimal cross-section to the wind stream. The first blade revolves around the coupling module in response to the wind stream, based on the first blade orientation, imparting rotational energy to the coupling module. The coupling module aligns the first continuous, repeating sequence of blade orientations so that the first substantially vertical orientation occurs at a predetermined angle to the wind direction. | 04-14-2011 |
