WO2010082011A4 - River / tidal energy converter - Google Patents

River / tidal energy converter Download PDF

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Publication number
WO2010082011A4
WO2010082011A4 PCT/GB2009/002976 GB2009002976W WO2010082011A4 WO 2010082011 A4 WO2010082011 A4 WO 2010082011A4 GB 2009002976 W GB2009002976 W GB 2009002976W WO 2010082011 A4 WO2010082011 A4 WO 2010082011A4
Authority
WO
WIPO (PCT)
Prior art keywords
electric power
power generator
rotor means
rotor
common shaft
Prior art date
Application number
PCT/GB2009/002976
Other languages
French (fr)
Other versions
WO2010082011A3 (en
WO2010082011A8 (en
WO2010082011A2 (en
Inventor
John Smith Cruickshank
Original Assignee
Cruickshank John S
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
Priority claimed from GB0900773A external-priority patent/GB0900773D0/en
Priority claimed from GB0906427A external-priority patent/GB0906427D0/en
Application filed by Cruickshank John S filed Critical Cruickshank John S
Publication of WO2010082011A2 publication Critical patent/WO2010082011A2/en
Publication of WO2010082011A3 publication Critical patent/WO2010082011A3/en
Publication of WO2010082011A4 publication Critical patent/WO2010082011A4/en
Publication of WO2010082011A8 publication Critical patent/WO2010082011A8/en

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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/063—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/065—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation
    • 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
    • F05B2210/40—Flow geometry or direction
    • F05B2210/404—Flow geometry or direction bidirectional, i.e. in opposite, alternating directions
    • 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
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/312—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being parallel to each other
    • 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
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/402—Transmission of power through friction drives
    • F05B2260/4021—Transmission of power through friction drives through belt drives
    • 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
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

A fluid flow energy converter has at least one pair of rotors (2, 401) disposed in a common horizontal plane and locatable across a fluid flow stream (421). Each rotor is rotatable about an axis which is orthogonal to a direction of the fluid flow stream and each pair of rotors is arranged to be driven by the fluid flow stream to rotate in contra -directions. Each rotor has an axle (402) rotatable about an axis and a plurality of blades (401) extending substantially radially from the axle. Each rotor of the pair of rotors is connected by a transmission in a housing (408) to drive a common shaft (414) having a longitudinal axis located in the same plane as the axis of each of the rotors. The common shaft is arranged to provide motive force for rotating an electrical generator/alternator (412) which is located about the common shaft axis.

Claims

AMENDED CLAIMS received by the International Bureau on 8 December 2010 (08.12.10)
1. An electric power generator including at least one pair of rotor means (2, 401) disposed in a common horizontal plane and locatable across a fluid flow stream (302), each said rotor means (2, 401) being rotatable about an axis thereof which is substantially orthogonal to a direction of the fluid flow stream, each said pair of rotor means (2, 401) being arranged to be driven to rotate in contra-directions by the fluid flow stream, each said rotor means (2, 401) having an axle (402, 603) rotatable about said axis and a plurality of blades (9, 310, 320, 321, 610) extending substantially radially from said axle, characterised by each said rotor means (2, 401) of said pair of rotor means being connected by transmission means (501 - 510) to drive a common shaft (3) having a longitudinal axis located in the same plane as the axis of each of said rotor means, said common shaft being arranged to provide motive force for rotating electrical generating means (4, 412) located about said common shaft axis.
2. An electric power generator as claimed in claim 1 , wherein each said rotor means (2, 401) include a plurality of spacer means (10, 604) radially extending from said axle (402, 603) to a hub (606), and the plurality of blades (9, 310, 320, 321, 610) extend from said hub.
3. An electric power generator as claimed in claim 1 or 2, wherein so as to facilitate the rotor means to rotate in contra-directions, one of the rotor means is connected by intermediate gear means (502) to a first pulley or chain wheel (504) and the other rotor means has a second pulley or chain wheel (505) mounted on the axle thereof.
4. An electric power generator as claimed in claim 3, wherein said common shaft (3) is connected to pulley or chain wheel means (507, 509) and said transmission means includes an endless belt or chain (506, 508) extending about said first pulley or chain wheel (504) and said common shaft pulley or chain wheel means (507), and a further belt or chain (508) extending about the second pulley or chain wheel (505) and said common shaft pulley or chain wheel means (509).
5. An electric power generator as claimed in claim 4, wherein said common shaft pulley or chain wheel means is a further pair of pulleys or chain wheels (507, 509) connected about the axis of said common shaft (3).
6. An electric power generator as claimed in any preceding claim, wherein deflector means (31, 303. 420, 425) are provided to direct the fluid stream either between adjacent sides of the rotor means to concentrate flow therebetween, and to direct flow away from the blades on an opposite side of the rotor means, or to direct fluid flow to blades on opposing sides of the rotor means, whereby in both
alternatives the blades rotate in opposing directions and the deflected fluid reduces drag on the rotor means..
7. An electric power generator as claimed in claim 6, wherein in a bi-directional ebb and flow tidal movement, said deflector means (420, 425) are provided upstream and downstream of said rotor means.
8. An electric power generator as claimed in any preceding claim, wherein the blades (9, 610) are uni-planar.
9. An electric power generator as claimed in claim 2, wherein the blades (9) comprise a first planar element (320) secured to the hub (606) and a pivotal second planar element which is pivotal about an axis substantially orthogonal to a
longitudinal axis of said hub so as to be tangentially pivotal with respect to the hub to reduce drag.
10. An electric power generator as claimed in claim 9, wherein a stop (323) is provided for limiting movement of the second planar element (321) when, in extremis, it is in alignment with the first planar element.
17
11. An electric power generator as claimed in claim 9 or 10, wherein a weight (326) is provided to assist the second planar element to return into alignment with the first planar element.
12. An electric power generator as claimed in any preceding claim, wherein the rotor means are supported on a base frame (8, 405) which has adjustable feet (7, 406) for contact with a fluid bed (6, 407).
13. An electric power generator as claimed in claim 12, wherein the rotor means are supported between the base frame (8, 405) and an upper frame (14, 408).
14. An electric power generator as claimed in any preceding claim, wherein the transmission means is mounted in a waterproof housing (408) arranged to be located below a water level (409).
15. An electric power generator as claimed in any preceding claim, wherein the common shaft (3) is connected to drive the generating means through a gear arrangement (24).
16. An electric power generator (4, 412) as claimed in any preceding claim, wherein the electrical generator means is releasably secured to the rotor means (2, 401) and transmission-means (501, 510) to permit portability and transportation of said electric power generator.
17. An electric power generator as claimed in any preceding claim, wherein four rotor means (2, 401) are arranged in a quadrilateral formation in a common horizontal plane and connected by transmission means to the common drive shaft arranged to provide motive force to the electrical generator means. 18. An electric power generator as claimed in any preceding claim, wherein said generator is fitted with at least one buoyancy chamber, said chamber having means arranged to fill the chamber with a gas to float the generator to a desired location,
18 means for expelling the gas and means for inserting a mass into the chamber to cause the generator to sink to a river or sea bed.
19. An electric generator as claimed in any preceding claim, wherein a mesh screen (216) is mounted around the rotor means to prevent marine life over a predetermined size from engaging the rotor means.
19
PCT/GB2009/002976 2009-01-17 2009-12-30 Electric power generator WO2010082011A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0900773A GB0900773D0 (en) 2009-01-17 2009-01-17 Electric power generation
GB0900773.3 2009-01-17
GB0906427A GB0906427D0 (en) 2009-04-14 2009-04-14 Electric power generator
GB0906427.0 2009-04-14

Publications (4)

Publication Number Publication Date
WO2010082011A2 WO2010082011A2 (en) 2010-07-22
WO2010082011A3 WO2010082011A3 (en) 2011-01-13
WO2010082011A4 true WO2010082011A4 (en) 2011-03-03
WO2010082011A8 WO2010082011A8 (en) 2011-04-07

Family

ID=42340152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/002976 WO2010082011A2 (en) 2009-01-17 2009-12-30 Electric power generator

Country Status (1)

Country Link
WO (1) WO2010082011A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201007767A2 (en) * 2010-09-22 2011-06-21 Kabayel Fuat Portable electricity generator that generates energy from water movements.
TWI478468B (en) 2013-01-28 2015-03-21 Jun Dong Power Corp Power generator
US9334847B2 (en) 2013-12-23 2016-05-10 Grover Curtis Harris Bi-rotational generator
WO2015155555A1 (en) * 2014-04-07 2015-10-15 Horvath István Water flow energy converter and blade wheel
IL250954B (en) * 2017-03-06 2019-08-29 Netta Weinroth A turbine system for producing electrical energy and method therefor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US326718A (en) * 1885-09-22 collins
US974221A (en) * 1908-08-27 1910-11-01 Louisa M Wilber Water-motor.
US2335817A (en) * 1940-01-29 1943-11-30 Michael I Topalov Stream motor
US4203702A (en) * 1977-05-19 1980-05-20 Williamson Glen A Water driven engine
JPS5644466A (en) * 1979-09-20 1981-04-23 Muroran Kogyo Daigaku Wave energy absorptive device installed to for breakwater
DE3015372A1 (en) * 1980-04-22 1982-01-28 Martin 4790 Paderborn Schatta Sea wave driven power plant for fish farm - has roll carriages secured to support axis on inner float and to power platform underside
US4335319A (en) 1980-08-27 1982-06-15 Charles B. Cannon Hydro-electric power apparatus utilizing ocean currents
JP2002364513A (en) * 2001-06-05 2002-12-18 Michio Takaoka Wave activated impeller power generation
NO324133B1 (en) 2006-06-30 2007-09-03 John Robert Skjelvan Vannstromningsturbinhjul
DE202007018844U1 (en) 2006-08-30 2009-06-18 Oao "Malaya Mezenskaya Pes" Hydropower plant
DE102006059944A1 (en) * 2006-12-19 2008-06-26 Limbeck, Achim, Dr. Under water power machine for use in Hydraulic systems has seal in region of contact surfaces between the jacket of electrical building element and control apparatus housing
WO2008115558A1 (en) * 2007-03-20 2008-09-25 Zeuner Kenneth W System and method for harvesting electrical power from marine current using turbines

Also Published As

Publication number Publication date
WO2010082011A3 (en) 2011-01-13
WO2010082011A8 (en) 2011-04-07
WO2010082011A2 (en) 2010-07-22

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