GB2386160A - Variable geometry magnus effect turbine - Google Patents

Variable geometry magnus effect turbine Download PDF

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Publication number
GB2386160A
GB2386160A GB0200104A GB0200104A GB2386160A GB 2386160 A GB2386160 A GB 2386160A GB 0200104 A GB0200104 A GB 0200104A GB 0200104 A GB0200104 A GB 0200104A GB 2386160 A GB2386160 A GB 2386160A
Authority
GB
United Kingdom
Prior art keywords
rotors
turbine
variable geometry
hub
magnus rotor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0200104A
Other versions
GB0200104D0 (en
Inventor
Technologies Ltd Ocean
David Bone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0200104A priority Critical patent/GB2386160A/en
Publication of GB0200104D0 publication Critical patent/GB0200104D0/en
Publication of GB2386160A publication Critical patent/GB2386160A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/201—Rotors using the Magnus-effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

A variable geometry magnus effect turbine comprises a number of rotors in the form of rotating cylinders 4, spaced equidistant from and parallel to a turbine hub 2. The rotors 4 are attached perpendicularly to support arms 3 which in turn are attached to the hub 2, and have reversible rotational drive means. The variable geometry arrangement may be in the form of rotors 4 that can be extended or retracted telescopically during operation. Adjustable flaps 7 can be attached to the rotors 4 such that the flaps 7 can be oriented to increase or decrease the drag on the rotors. The turbine may be utilised to generate energy from the wind, or it may be placed underwater to allow hydrodynamic forces to impart rotary motion on the rotors.

Description

<Desc/Clms Page number 1>
VARIABLE GEOMETRY"MAGNUS ROTOR"TURBINE This invention relates to wind turbines.
Currently wind or water current turbine rotors are arranged such that they rely on fluid velocity to rotate them around a horizontal axis using conventional propeller blades. The rotor speed is conveyed through a hub and used to generate electricity. Consequently low wind velocity results in low rotor velocity and less electricity production. To offset this problem large rotors are required and this causes the need for a larger support structure, resulting in reduced stability, especially if applied to an offshore structure. The turbine rotors are mounted with their hub axis horizontal resulting in a requirement to support the turbine hub very high to allow for obstruction avoidance at the rotor ends. A disadvantage of this is that the turbine height above the foundation causes poor stability and an eccentric loading and instability for both bottom-founded and floating structures and also results in complex and costly installation procedures.
We have now devised a rotor turbine that alleviates the above problems and improves efficiency.
According to the present invention there is provided a variable geometry"Magnus Rotor" turbine comprising vertically mounted rotating cylinders (rotors) spaced radially equidistant from and parallel to a horizontal hub, said rotors being attached perpendicularly to horizontal arms attached to said hub, and having a reversible rotational drive means for said rotors.
Preferably the rotors can be extended or retracted telescopically during operation.
Preferably adjustable flaps can be attached to the rotors such that the flaps can be oriented to provide maximum wind drag.
In operation, when subjected to a continuous fluid flow, the rotors are revolved about their vertical axis causing aerodynamic horizontal forces. The horizontal force is transferred to the horizontal arms and propels the rotors around the hub.
In an alternative embodiment the hub and support arms are arranged vertically so that the rotors extend horizontally.
In another embodiment rotors can be positioned below water level and hydrodynamic forces utilised to provide rotary motion and energy input into the turbine hub.
A specific embodiment of the invention will now be described by way of example only and with reference to the accompanying drawings in which :- Figure I shows a wind turbine with rotors attached in the in-situ condition.
Figure 2 shows the rotors in plan view.
Referring to Figure I the structure comprises a support tower 1, a turbine and hub 2, horizontal support arms 3, and rotors 4.
<Desc/Clms Page number 2>
Reference to Figure 2 shows the rotors 4 in plan view. Each individual rotor 4 can be rotated in either direction about the vertical axis as shown by arrows 5 and 6. Thus, the rotors 4 can be rotated according to the relative wind direction and to their position relative to the hub 2, thus generating rotational motion to the rotor assembly. The rotors 4 can be telescopically retracted/extended as shown by arrow 8 in Figure 1. Adjustable flaps 7 can be used to increase drag at the optimum position during the revolution cycle of the horizontal arms 3.

Claims (8)

  1. CLAIMS 1. A variable geometry"Magnus Rotor"turbine comprising vertically mounted rotating cylinders (rotors) spaced radially equidistant from and parallel to a horizontal hub, said rotors being attached perpendicularly to horizontal support arms attached to said hub, and having a reversible rotational drive means for said rotors.
  2. 2. A variable geometry"Magnus Rotor"turbine as claimed in Claim 1, wherein the hub and support arms are arranged vertically and the rotors extended horizontally.
  3. 3. A variable geometry"Magnus Rotor"turbine as claimed in Claim 1 or Claim 2, wherein the rotors can be extended or retracted telescopically during operation.
  4. 4. A variable geometry"Magnus Rotor"turbine as claimed in any preceding claim, wherein adjustable flaps can be attached to the rotors such that the flaps can be oriented to provide maximum wind drag at the optimum position during the revolution cycle of the support arms.
  5. 5. A variable geometry"Magnus Rotor"turbine as claimed in any preceding claim, wherein during operation the rotors are revolved about their longitudinal axis causing aerodynamic perpendicular forces, said perpendicular forces being transferred to the support arms and propelling the rotors around the hub.
  6. 6. A variable geometry"Magnus Rotor"turbine as claimed in any preceding claim, wherein rotors can be positioned below water level and hydrodynamic forces utilised to provide rotary motion and energy input into the turbine hub.
  7. 7. A variable geometry"Magnus Rotor"turbine as claimed in any preceding claim, wherein the rotors can be rotated according to the relative wind direction and to their position relative to the hub, thus generating rotational motion to the rotor assembly
  8. 8. A variable geometry"Magnus Rotor"turbine substantially as herein described and illustrated in the accompanying drawings.
GB0200104A 2002-01-04 2002-01-04 Variable geometry magnus effect turbine Withdrawn GB2386160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0200104A GB2386160A (en) 2002-01-04 2002-01-04 Variable geometry magnus effect turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0200104A GB2386160A (en) 2002-01-04 2002-01-04 Variable geometry magnus effect turbine

Publications (2)

Publication Number Publication Date
GB0200104D0 GB0200104D0 (en) 2002-02-20
GB2386160A true GB2386160A (en) 2003-09-10

Family

ID=9928597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0200104A Withdrawn GB2386160A (en) 2002-01-04 2002-01-04 Variable geometry magnus effect turbine

Country Status (1)

Country Link
GB (1) GB2386160A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001236A1 (en) * 2005-01-11 2006-07-20 Gerd Lukoschus Wind power system with rotary cylinder on rotary base plate generates power by Magnus effect with rotary cylinders in horizontal rotary base plate
DE102005062615A1 (en) * 2005-12-23 2007-06-28 Magnus Rotor Solar Systems Ltd. Wind power plant has Flettner rotor movable horizontally over circular travel path through its displaceable base formed in one structural unit extending over entire travel path on guide rail
WO2009018524A3 (en) * 2007-08-02 2010-04-08 Douglas Joel S Magnus force fluid flow energy harvester
WO2010085615A3 (en) * 2009-01-26 2010-11-04 Egen Llc Fluid flow energy harvester
EP3318754A4 (en) * 2015-07-01 2019-01-09 Challenergy Inc. Magnus-type thrust generating device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744924A (en) * 1925-04-13 1930-01-28 Charles E Sargent Wind motor
US4446379A (en) * 1983-02-17 1984-05-01 Borg John L Magnus effect power generator
DE3501807A1 (en) * 1985-01-21 1986-07-24 Heribert 7921 Hermaringen Schneider Fluid-flow engine for obtaining energy
GB2262572A (en) * 1991-12-17 1993-06-23 Retzler Chris Heinz Sea or lake wave energy convertor.
GB2302142A (en) * 1995-06-13 1997-01-08 Frederick Arthur Dennis Hydroelectric generating device; water wheel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744924A (en) * 1925-04-13 1930-01-28 Charles E Sargent Wind motor
US4446379A (en) * 1983-02-17 1984-05-01 Borg John L Magnus effect power generator
DE3501807A1 (en) * 1985-01-21 1986-07-24 Heribert 7921 Hermaringen Schneider Fluid-flow engine for obtaining energy
GB2262572A (en) * 1991-12-17 1993-06-23 Retzler Chris Heinz Sea or lake wave energy convertor.
GB2302142A (en) * 1995-06-13 1997-01-08 Frederick Arthur Dennis Hydroelectric generating device; water wheel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001236A1 (en) * 2005-01-11 2006-07-20 Gerd Lukoschus Wind power system with rotary cylinder on rotary base plate generates power by Magnus effect with rotary cylinders in horizontal rotary base plate
DE102005062615A1 (en) * 2005-12-23 2007-06-28 Magnus Rotor Solar Systems Ltd. Wind power plant has Flettner rotor movable horizontally over circular travel path through its displaceable base formed in one structural unit extending over entire travel path on guide rail
WO2009018524A3 (en) * 2007-08-02 2010-04-08 Douglas Joel S Magnus force fluid flow energy harvester
US7986054B2 (en) 2007-08-02 2011-07-26 Egen Llc Magnus force fluid flow energy harvester
WO2010085615A3 (en) * 2009-01-26 2010-11-04 Egen Llc Fluid flow energy harvester
EP3318754A4 (en) * 2015-07-01 2019-01-09 Challenergy Inc. Magnus-type thrust generating device
US10443564B2 (en) 2015-07-01 2019-10-15 Challenergy Inc. Magnus type thrust generating device

Also Published As

Publication number Publication date
GB0200104D0 (en) 2002-02-20

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COOA Change in applicant's name or ownership of the application
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)