WO2006021074A1 - An auxiliary propeller rotor for horizontal wind turbine generators “ booster/stabilizer props” - Google Patents

An auxiliary propeller rotor for horizontal wind turbine generators “ booster/stabilizer props” Download PDF

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Publication number
WO2006021074A1
WO2006021074A1 PCT/CA2005/000033 CA2005000033W WO2006021074A1 WO 2006021074 A1 WO2006021074 A1 WO 2006021074A1 CA 2005000033 W CA2005000033 W CA 2005000033W WO 2006021074 A1 WO2006021074 A1 WO 2006021074A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
propellers
auxiliary
exclusive property
wind turbine
Prior art date
Application number
PCT/CA2005/000033
Other languages
French (fr)
Inventor
Alfred Louis Mathieu
Original Assignee
Vettese, Sharolyn
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vettese, Sharolyn filed Critical Vettese, Sharolyn
Publication of WO2006021074A1 publication Critical patent/WO2006021074A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/25Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Definitions

  • the top base of the existing wind turbine generator structure is usually a round plate, which when set on a plate on top of a tower, 40-60-80 feet, permits the easy rotation, plate to plate, of the structure such that the propellers are always perpendicular to the wind movement for maximum power from the wind. Any deviation to the oblique from the perpendicular to the wind reduces the speed of rotation of the propellers and is one method for slowing the rotational speed of the propellers in high winds.
  • wind turbine generators on towers are isolated individually or together as a community labeled as a wind farm and these farms are common in California with 4,000 or more turbines providing electricity to cities and local communities.
  • Wind farms are being expanded nationally in European countries, especially Denmark, Germany, Holland, Sweden and England. Canada has great potential and is slowly expanding the use of wind turbine generator to supplement hydro and nuclear power.
  • the wind generator has a first rotor disposed with a first axis of rotation.... and a second rotor disposed with a second axis of rotation different from the first axis of rotation, each rotor providing power to the field rotor of a generator electrical energy is generated.
  • Patent CA 2193972 The Multi-Unit Rotor Blade System Integrated
  • the described wind turbine has a set of propeller type wind force collecting rotor turbines composed of an up-wind auxiliary rotor blade turbine being disposed on the front end of the combined bevel-planet gear assembly, and a down-wind main rotor blade turbine. These rotor blades rotate in opposite directions with respect to one another.
  • a lightweight counter-rotatable propeller system driven by a rotatable shaft... system includes first and second counter-rotatable propellers, each propeller including a plurality of blades mounted on first and second hubs, respectively.

Abstract

In a wind turbine generator, an auxiliary rotor is provided on an extended shaft of the wind turbine generator at a distance from a main rotor. Both the auxiliary and main rotors rotate together, from the energy of the wind, in the same direction. The extended shaft of the wind turbine generator is shaped multi-sided, e.g. hexagonally, to allow easy radial adjustement between the auxiliary rotor blades and the main rotor blades.

Description

Auxiliary Propeller Rotor for Wind Turbine Generators
DISCLOSURE
a) Field and Background of the Invention
i) Humans have used wind as energy for thousands of years. Ancient Persians have used wind energy to pump water before the birth of Christ. Wind-driven ships explored the world, before the advent of engine power. For huncfreds of years, the huge wind mills in Holland provided power to grind the grains and also to drain the seawater when reclaiming the land, and still do, from the sea. The old fashion pioneer wind vane windmills used traditionally in the early 1900's by the farmers and ranchers in the United States and Canada to pump water, are still used today.
ii) The top base of the existing wind turbine generator structure is usually a round plate, which when set on a plate on top of a tower, 40-60-80 feet, permits the easy rotation, plate to plate, of the structure such that the propellers are always perpendicular to the wind movement for maximum power from the wind. Any deviation to the oblique from the perpendicular to the wind reduces the speed of rotation of the propellers and is one method for slowing the rotational speed of the propellers in high winds.
iii) The wind turbine generators on towers are isolated individually or together as a community labeled as a wind farm and these farms are common in California with 4,000 or more turbines providing electricity to cities and local communities. Wind farms are being expanded nationally in European countries, especially Denmark, Germany, Holland, Sweden and England. Canada has great potential and is slowly expanding the use of wind turbine generator to supplement hydro and nuclear power.
iv) Most of the modern turbine generators, as seen in photographs, have one propeller with either 2 blade or 3 blade rotors, and the rotor blade diameter may vary from 10 feet to 12 feet to as much as 60 to 80 feet more or Jess, on a tower 150 feet, more or less. Some wind turbine generators have one rotor with a multitude of acute angle vanes, (pioneer wind pumpers on farms and ranches) or recent models (Hornet Wind Turbines) with as many as 4 to 6 propeller blades on the same rotor. v) Most manufacturers of wind turbine generators use the 2 propeller rotor and the 3 propeller rotor as the most efficient, as observed in wind farms in the US and Europe.
vi) However, the Hornet Wind Turbines of the US has demonstrated that a rotor with 4 or 5 blades has a higher torque at lower wind speeds, less variation in rotation, resulting in more constant energy output favorable for generating electricity.
a) Search of Patents
I) Reviewing certain wind turbine generators patents filed with the Canadian and with the US Patent office, there is no patent for an auxiliary propeller rotor with the extended main shaft permitting a significant space on the main shaft between the 2 propellers. Certain patents show 2 propellers adjoining each other, with no space on the shaft between them, but rotating counter revolution to each other, one propeller is secured on a main shaft while the other propeller is secured on an outer tube outside of the main shaft and each counter rotating to the other.
II) United States Patent No 6,713,893, Efficient Wind Generator. The wind generator has a first rotor disposed with a first axis of rotation.... and a second rotor disposed with a second axis of rotation different from the first axis of rotation, each rotor providing power to the field rotor of a generator electrical energy is generated.
Note: there is no obvious space between the two rotors.
III) Patent CA 2193972. The Multi-Unit Rotor Blade System Integrated
Wind Turbine.
The described wind turbine has a set of propeller type wind force collecting rotor turbines composed of an up-wind auxiliary rotor blade turbine being disposed on the front end of the combined bevel-planet gear assembly, and a down-wind main rotor blade turbine. These rotor blades rotate in opposite directions with respect to one another.
IV) Aircraft Propeller System.
A lightweight counter-rotatable propeller system driven by a rotatable shaft... system includes first and second counter-rotatable propellers, each propeller including a plurality of blades mounted on first and second hubs, respectively.

Claims

Auxiliary Propeller Rotor for Wind Turbines GeneratorsThe Technology of the Invention in which an Exclusive Property or Privilege is Claimed is Defined as Follows:
1. A second rotor with two or more propellers, termed rear-auxiliary or front auxiliary that is installed with a space, in front, or in rear of the main propeller rotor that also has two or more propellers, and together are on the extended (16-24 inch /40-60cm, more or less), shaft, or axle of an up-wind generator turbine is an exclusive property.
2. A space of between (12-18 inches/30-45 cm, more or less) is allocated on the extended shaft or axle of the wind turbine between the auxiliary propeller rotor and the main propeller rotor is an exclusive property.
3. The axis of rotation of the auxiliary propeller rotor and the front propeller rotor that are secured on the shaft or axle of the wind turbine generator, and rotate together either clockwise or counter-clockwise from the wind energy is an exclusive property.
4. The extended part of the shaft or axle of the wind turbine generator can be shaped multi-sided such as hexagonally to allow easy adjustment of the circumferential arrangement between the auxiliary rotor propellers and the main rotor propellers, so that essentially there are 6 settings between the two rotor propellers and instead of being in line with each other they can be offset so as to achieve maximum power output from the flow-through of the wind energy and attain greater energy efficiency is an exclusive property.
5. The auxiliary rotor propellers and the main rotor propellers are on the same extended shaft or axle of the wind turbine generator and permit many variations of the propellers such as each having the same or different length of blades, widths of blades, and number of blades, (3 to 5, more or less), and together achieve a lower start-up speed, more stability in varying winds, and are ideal for low wind speed sites is an exclusive property.
>. This plurality of propeller blades on two adjoining rotors with one half the blade length has the same power output, more or less, as a standard rotor with two or three blades with twice the diameter on a high tower supporting the wind turbine, thus effectively the height of the tower is reduced by one half, more or less is an exclusive property.
7. The auxiliary propeller rotors and the main propeller rotor with an allocated space between the two, is applicable for down- wind turbine generators, and for tidal and stream water generator turbines is an exclusive property.
8. The auxiliary propeller rotor and the main propeller rotor, with an allocated space between the two, each with its befitting number of blades, is applicable to airplanes with one or two motor driven propeller rotor(s), or with one or two turbo rotor propellers is an exclusive property.
9. The auxiliary propeller rotor and the main propeller rotor, with an allocated space between the two is applicable to water conveyances powered by one or more separate propellers, such as boats and ships is an exclusive property.
PCT/CA2005/000033 2004-08-23 2005-01-05 An auxiliary propeller rotor for horizontal wind turbine generators “ booster/stabilizer props” WO2006021074A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2,477,595 2004-08-23
CA002477595A CA2477595A1 (en) 2004-08-23 2004-08-23 An auxiliary propeller rotor for horizontal wind turbine generators

Publications (1)

Publication Number Publication Date
WO2006021074A1 true WO2006021074A1 (en) 2006-03-02

Family

ID=35874760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2005/000033 WO2006021074A1 (en) 2004-08-23 2005-01-05 An auxiliary propeller rotor for horizontal wind turbine generators “ booster/stabilizer props”

Country Status (2)

Country Link
CA (1) CA2477595A1 (en)
WO (1) WO2006021074A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1988282A3 (en) * 2007-04-26 2013-03-06 M.Torres Olvega Industrial. S.L. High electricity production wind generator
CN112431718A (en) * 2020-11-19 2021-03-02 太仓联科工业设计有限公司 High-efficient new forms of energy wind power generation equipment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100215502A1 (en) * 2007-03-30 2010-08-26 Distributed Thermal Systems Ltd. Multistage wind turbine with variable blade displacement
CA2616577A1 (en) 2007-04-13 2008-10-13 Wind Simplicity Inc. Rotor drum for multiple rotor wind turbine
US7985052B2 (en) 2007-10-18 2011-07-26 Wind Simplicity Inc. Curved blade for wind turbines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1637398A (en) * 1926-01-14 1927-08-02 Syracusa Michael Airplane construction
US1717663A (en) * 1927-12-07 1929-06-18 Checkley George Propeller
CA2193972A1 (en) * 1994-06-27 1996-01-04 Chan Shin The multi-unit rotor blade system integrated wind turbine
CA2395612A1 (en) * 2000-01-26 2001-08-02 Aloys Wobben Wind power installation with two rotors in tandem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1637398A (en) * 1926-01-14 1927-08-02 Syracusa Michael Airplane construction
US1717663A (en) * 1927-12-07 1929-06-18 Checkley George Propeller
CA2193972A1 (en) * 1994-06-27 1996-01-04 Chan Shin The multi-unit rotor blade system integrated wind turbine
CA2395612A1 (en) * 2000-01-26 2001-08-02 Aloys Wobben Wind power installation with two rotors in tandem

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1988282A3 (en) * 2007-04-26 2013-03-06 M.Torres Olvega Industrial. S.L. High electricity production wind generator
CN112431718A (en) * 2020-11-19 2021-03-02 太仓联科工业设计有限公司 High-efficient new forms of energy wind power generation equipment

Also Published As

Publication number Publication date
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