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Dual rotor wind turbine

a wind turbine and rotor technology, applied in the field of wind turbines, can solve the problems of large pollution, limited supply of coal and oil, and fossil fuel powering much of the world, and achieve the effects of reducing pollution, increasing production costs, and increasing production costs

Inactive Publication Date: 2005-09-29
MILLER WILLIS F
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is a dual rotor wind turbine that can efficiently capture kinetic energy from wind and produce multiple forms of power. It is easy to manufacture and can suit a wide variety of wind speeds. The technical effects of this invention include improved energy capture, flexibility in power production, and adaptability to wind speed."

Problems solved by technology

For a long time, however, a cheap and abundant supply of fossil fuel has powered much of the world.
Unfortunately, this supply of coal and oil is limited, requires extensive energy to extract, and creates vast amounts of pollution when combusted.
Further, the propellers are often of a single size and do not maximize the harvesting of all available wind energy.
Further, there is an unmet demand to produce multiple forms of power, such as different voltages or combinations of either AC or DC electrical power, or to operate multiple combinations of generators, pumps, and compressors from a single wind turbine.

Method used

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Embodiment Construction

[0023] A dual rotor wind turbine according to the present invention will now be described in detail with reference to FIGS. 1 through 5 of the accompanying drawings. More particularly, a dual rotor wind turbine 100 according to a now preferred embodiment includes a rotatable drive shaft 110 connected to a first rotor assembly 120 and a first stage generator 140. The first rotor assembly 120 includes a plurality of first rotor blades 124 radially extending from a first hub 122 that is connected to the drive shaft 110 (FIG. 3).

[0024] A second rotor assembly 130 includes a plurality of second rotor blades 134 radially extending from a second hub 132. The second rotor blades 134 are preferably larger than the first rotor blades 124 in order to capture additional wind power that has shed off of or passed between the first rotor blades 124. Further, the plurality of second rotor blades 134 of the second rotor assembly 130 define an outer diameter that is larger than an outer diameter def...

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Abstract

A dual rotor wind turbine according to the present invention includes a rotatable drive shaft, a first rotor assembly connected to the drive shaft, a second independently-rotating rotor assembly coupled to the drive shaft rearward of the first rotor assembly, a first stage generator coupled to the drive shaft, a second stage generator operatively connected to the second rotor assembly, a housing wherein the generators are situated, a rotary base, and a tail. In use, the rotary base allows the tail to optimally position the rotors for collecting wind. Wind rotates the first rotor assembly, causing the drive shaft to rotate and operate the first stage generator. Wind passing through and directed off the first rotor assembly rotates the second rotor assembly, independent of the first rotor assembly, operating the second stage generator. The two stage generators are any combination of AC or DC electrical generators, pumps, and compressors.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates generally to wind turbines and, more particularly, to a dual rotor wind turbine that is more efficient than its predecessors and can produce multiple forms of power. [0002] People have used the wind as a power source for years. Initial uses included pumping water and grinding flour. With the discovery of electricity and the invention of the generator, windmills have been designed to generate electric power. For a long time, however, a cheap and abundant supply of fossil fuel has powered much of the world. Unfortunately, this supply of coal and oil is limited, requires extensive energy to extract, and creates vast amounts of pollution when combusted. These concerns have led to a new interest in renewable clean energy. Wind energy can solve these problems of pollution and offer an unlimited supply of energy. A wind turbine with an efficient design can offer competitive energy prices compared with traditional ways of generating ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B63H1/00F03D1/02F03D1/04F03D9/00F03D11/02
CPCF03D1/025F03D9/002F03D11/02Y10S415/908F05B2260/4021Y02E10/722Y02E10/725F05B2240/40F03D9/20F03D9/25F03D15/00F03D15/10Y02E10/72
Inventor MILLER, WILLIS F.
Owner MILLER WILLIS F