Wind power device with dynamic sail, streamlined cable or enhanced ground mechanism
OwnerLeonid Goldsteininventor
Life of this patent
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Abstract
An improved wind power device for wind energy conversion or vehicle propulsion. Among many possibilities contemplated, the device may have a moving sail with tethered wings (101), moving in elliptical trajectory, utilize separate sheave (503) and cable drum (505), use a block and tackle (411), attached to the tether and utilize a cable having a flexible jacket with aerodynamically streamlined cross section (603).
Claims20
A device for conversion of wind energy into electric energy, comprising:
- an airborne wing or sail, moving under power of wind;
- a cable, attached to said wing or sail;
- a ground level platform;
- a rotational element attached to said platform in contact with said cable;
- an electrical generator, having a rotor rotationally connected to said rotational element;
- means for holding excess of said cable.
A method of converting linear motion of a cable into rotational motion in a wind energy conversion device, comprising steps:
- providing an airborne wing;
- providing a cable, coupled to the airborne wing;
- providing a rotational element coupled with a rotor of an electric generator;
- converting linear motion of said cable into rotation of said rotational element;
- storing excess of said cable separately from said rotational element.
A moving sail for use in systems, utilizing wind power, comprising:
- at least two airborne wings;
- a platform at the ground level;
- a pulled element attached to the platform;
- a tether, connecting said wings to said pulled element;
- an anti-twist device, preventing twisting of the tether by motion of the wings;
- the anti-twist device has a first side and a second side, allowed to freely rotate one relative to another, and each of said wings is attached to the first side of the anti-twist device by at least one cable;
- wherein said wings move under influence of the wind in the same clockwise or counter clockwise direction, if viewed from said platform, and the motion of said wings has substantial cross wind component.
Dependencies are inferred from the claim text.