WO2002016195A1 - Electricity generating systems - Google Patents

Electricity generating systems Download PDF

Info

Publication number
WO2002016195A1
WO2002016195A1 PCT/GB2001/003681 GB0103681W WO0216195A1 WO 2002016195 A1 WO2002016195 A1 WO 2002016195A1 GB 0103681 W GB0103681 W GB 0103681W WO 0216195 A1 WO0216195 A1 WO 0216195A1
Authority
WO
WIPO (PCT)
Prior art keywords
reel
generator
spring
shaft
drive shaft
Prior art date
Application number
PCT/GB2001/003681
Other languages
French (fr)
Inventor
Raymond John Gotto
Original Assignee
Raymond John Gotto
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 Raymond John Gotto filed Critical Raymond John Gotto
Priority to AU2001278623A priority Critical patent/AU2001278623A1/en
Publication of WO2002016195A1 publication Critical patent/WO2002016195A1/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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1885—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is tied to the rem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/16—Tying-up; Shifting, towing, or pushing equipment; Anchoring using winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
    • 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

Definitions

  • the present invention relates to electricity generating systems and, in particular, to relatively small systems for use in charging electric batteries of sea-going vessels.
  • an electricity generating system for generating electricity from wave motion, the system being mountable on a vessel and having an elongate retractable member with a portion being securable to a structure not subject to the same wave motion as the vessel, the system including a reel around which said elongate member can be wound, means for biasing said reel in a sense to retract said elongate member when slack about said reel, one way clutch means for transmitting rotation of said reel to a main drive shaft when said elongate member is drawn off said reel, means coupling said main drive shaft to a power storage mechanism, said power storage mechanism storing power from said main drive shaft when driven by said reel and releasing power to drive said generator.
  • Figure 1 is a view of a sea-going vessel secured to a dockside
  • Figure 2 is a front elevation of the system with the front cover removed;
  • Figure 3 is a side view of the system of Figure 2;
  • Figure 4 is a rear view of the system of Figure 2;
  • Figure 5 is a view to an enlarged scale of the system of Figure 3;
  • Figure 5 A is a perspective view of a detail of the system of Figure 5;
  • Figure 6 is a view to an enlarged scale of the system shown in Figure 2.
  • Figure 7 is a view of a detail of Figure 6.
  • a boat 2 is moored to a dockside 4 with the aid of tether 6 in the form of a web or belt.
  • the free end of the belt has a loop, which can be looped over a tethering post 8 on the dock 2.
  • the other end of the belt is wound on retractable reel or capstan 10 of an electricity generating system 12 secured firmly to the deck of the boat 2.
  • the distance between the capstan 10 and the tether post 8 tends to vary and the system 12 acts to draw the belt 6 around the capstan 10 with the aid of a retractable spring when the belt is slack but to couple the capstan 10 to an electric generator 14 when the belt is under tension so that as the belt unwinds from the capstan 10, the generator is driven.
  • the capstan 10 also drives a power spring mechanism to store power at the same time, which power spring mechanism continues to drive the generator during the periods that the belt is not under tension due to wave power.
  • the system is more clearly illustrated in Figure 5. As shown, the system comprises a pair of spaced support plates 20 and 22. Each support plate 20 and 22 has a respective foot section 20A and 22A which extends at right angles to the plane of the plates. The foot sections 20 A and 22 A are anchored to the deck of the vessel 2 by means (not shown).
  • the plate 20 carries a stub shaft 24 which in turn carries a gear wheel 26.
  • the stub shaft 24 also carries the capstan 10 onto which the belt 6 is wound.
  • the two plates 20 and 22 rotatably support a transversely extending main shaft 26 which projects from opposite sides of the plates 20 and 22.
  • a transversely extending main shaft 26 which projects from opposite sides of the plates 20 and 22.
  • the clutch operates so that when the gear wheel is driven in one sense, the gear wheel 30 is locked to the shaft so that rotation of the gear wheel in that sense will drive the shaft 26 but rotation of the gear wheel 28 in the opposite sense will allow the gear wheel 28 to rotate relative to the shaft 26.
  • the gear wheel 30 meshes with gear wheel 26, the gear ratio being 2:1.
  • a U-shaped bracket 32 supports a core 34 extending coaxial with the capstan 10 and located within a central recess thereof.
  • a coil spring (not shown) secured at one end to the spool 34 and at the other end to the capstan 10 lies between the core 34 and capstan 10 to bias the capstan 10 for rotation in one sense to draw in the belt 6 around to the capstan. Rotation of the capstan 10 in this sense is communicated to the gear wheel 30 via the gear wheel 26 and thus clutch 28 will allow the gear wheel 30 to rotate freely about the shaft 26.
  • a spring spool 36 Rigidly mounted on that end of the shaft 26 which projects from the plate 22 is a spring spool 36. Located in side by side relationship with the spool 36 is an auxiliary spring spool 40. The auxiliary spring spool 40 is mounted for free rotation about a stub shaft 38 which projects from the plate 22 and has an axis which extends parallel to the axis of the shaft 26.
  • a coil spring 42 has one end rigidly secured to the core of the spool 36 and the other end secured to the core of the auxiliary spool 40.
  • the coil spring 42 is wound in its normally wound sense about the auxiliary spool 40 and connected to be wound in the opposite sense about the spool 36 (see Figure 6).
  • a worm gear 46 located between the two plates 20 and 22 is rigidly secured to the shaft 26.
  • the worm gear 46 meshes with a worm 44 which is rigid with the rotary shaft 48 of an electric generator 50.
  • the housing of the generator 50 is rigidly secured to the support plates 20 and 22.
  • the gear rotation between the worm gear and the worm is 25 : 1 but may lie in the range of from 20:1 to 30:1.
  • the length of the belt 6 is typically 1 to 2 m so that it can be accommodated fully wound on the capstan 10. It may, however, be extended by attaching to its free end whatever length of rope is required.
  • the belt 6 In operation, starting from the point at which the belt 6 is at least partially wound around the capstan 10 and the wave motion of the sea is acting to move the boat and therefore the system 12 away from the tethering post 8, the belt 6 will slowly be drawn off the capstan 10 causing the capstan to rotate.
  • the force to which the belt is subject to will depend upon the weight of the boat (which may well be several tons) as well as the frequency and size of the waves and therefore may be quite considerable.
  • the capstan will rotate which in turn will rotate the gear wheels 26 and 30.
  • the clutch mechanism 28 will lock the gear wheel 30 to the shaft 26. Rotation of the shaft 26 will wind up the coil spring 42 and at the same time drive the worm gear 46. Rotation of the worm gear 46 will in turn drive the worm 44 and therefore the rotor of the generator 50. Rotation of the generator rotor will generator an AC electrical current which is fed to a transformer and an AC to DC rectifier circuit (both not shown) for conversion to a charging current to charge the vessel's batteries.
  • a spring release mechanism is provided (see Figure 6).
  • a lever 52 is supported by a pivot 60.
  • One end of the lever 52 rests on the coil spring 42 wound on the auxiliary spool 40 and is urged against the spring 42 by a bias spring 54.
  • the other end of the lever 52 engages a pivotal latch 56 which when triggered releases the spring tension.
  • the shaft 26 starts to rotate, it draws the spring 42 from the auxiliary spool 40 onto the main spool 36.
  • the lever 52 follows the reduction in the thickness or amount of spring 42 wound on the auxiliary spool 40.
  • the latch 50 will lock the spool 40 against further rotation. Instead, the latch may act to de-couple the spring 42 from the shaft 26 with the aid of a clutch (not shown).
  • the clutch 28 may be designed to slip while in engagement when a predetermined tension is reached.
  • the belt may be tethered to a structure other than a dock 2, for example, to the sea bed via a buoy or an anchor provided that there is relative movement between the vessel and the structure.
  • the system may be fitted the other way around with the generator secured to the dock 2 and the belt secured to the vessel.
  • the worm drives the rotating shaft of the generator, it can instead be coupled to a gear mechanism which drives the stator and rotor of the generator in opposite directions at the same or different speeds thereby reducing the absolute speed at which each is driven.
  • the generator may be driven by a turbine (not shown) from compressed air supplied from a reservoir (not shown).
  • the main shaft 26 is then used to drive a compressor which supplies compressed air to the reservoir.
  • the worm gear, the worm and the spring mechanism are omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The electricity generating system id designed to harness wave power while a ship (2) is moored at a dock (4). A retractable mooring line (6) extends between the dock and system. A spring mechanism retracts the line (6) onto a reel (10) when slack. When the line is under tension, the resultant rotation of a reel is transmitted through a one way clutch (28) to drive a main drive shaft (26). The main drive shaft (26) drives a generator (50) and winds up a spring power mechanism. When the line (6) goes slack, the spring power mechanism continues to drive the main drive shaft (26) and so continues the drive to the generator (50).

Description

ELECTRICITY GENERATING SYSTEMS
The present invention relates to electricity generating systems and, in particular, to relatively small systems for use in charging electric batteries of sea-going vessels.
Small yachts and power boats which have on-board electrical lighting and other electrical services have electrical generators on-board which are driven while the vessel is travelling, to feed the electrical on-board systems and to charge the on-board batteries. However, when the vessel is moored to a buoy or the dockside or at anchor, the power is usually no longer available to drive the generators and so use of the electrical systems quickly depletes the on-board batteries. It has been proposed to supplement the charging of the batteries from a solar panel generator or a wind generator. The problem is that the vessel is usually moored at night when the solar panel is inactive. As far as the wind generator is concerned, winds tend to be variable and so cannot always be relied upon to produce the power. Also, the amount of power generated is fairly low unless a large wind driven propeller is used and this could be impractical on a small boat.
It is an object of the invention to provide an improved system for generating electricity using wave power.
According to the present invention, there is provided an electricity generating system for generating electricity from wave motion, the system being mountable on a vessel and having an elongate retractable member with a portion being securable to a structure not subject to the same wave motion as the vessel, the system including a reel around which said elongate member can be wound, means for biasing said reel in a sense to retract said elongate member when slack about said reel, one way clutch means for transmitting rotation of said reel to a main drive shaft when said elongate member is drawn off said reel, means coupling said main drive shaft to a power storage mechanism, said power storage mechanism storing power from said main drive shaft when driven by said reel and releasing power to drive said generator.
Electricity generating systems embodying the present invention, will now be described, by way of example, with reference to the accompanying diagrammatic drawings, in which:
Figure 1 is a view of a sea-going vessel secured to a dockside;
Figure 2 is a front elevation of the system with the front cover removed;
Figure 3 is a side view of the system of Figure 2; Figure 4 is a rear view of the system of Figure 2;
Figure 5 is a view to an enlarged scale of the system of Figure 3;
Figure 5 A is a perspective view of a detail of the system of Figure 5;
Figure 6 is a view to an enlarged scale of the system shown in Figure 2; and
Figure 7 is a view of a detail of Figure 6.
As shown in Figure 1, a boat 2 is moored to a dockside 4 with the aid of tether 6 in the form of a web or belt. The free end of the belt has a loop, which can be looped over a tethering post 8 on the dock 2. The other end of the belt is wound on retractable reel or capstan 10 of an electricity generating system 12 secured firmly to the deck of the boat 2.
Due to wave motion, the distance between the capstan 10 and the tether post 8 tends to vary and the system 12 acts to draw the belt 6 around the capstan 10 with the aid of a retractable spring when the belt is slack but to couple the capstan 10 to an electric generator 14 when the belt is under tension so that as the belt unwinds from the capstan 10, the generator is driven. The capstan 10 also drives a power spring mechanism to store power at the same time, which power spring mechanism continues to drive the generator during the periods that the belt is not under tension due to wave power.
The system is more clearly illustrated in Figure 5. As shown, the system comprises a pair of spaced support plates 20 and 22. Each support plate 20 and 22 has a respective foot section 20A and 22A which extends at right angles to the plane of the plates. The foot sections 20 A and 22 A are anchored to the deck of the vessel 2 by means (not shown).
The plate 20 carries a stub shaft 24 which in turn carries a gear wheel 26. The stub shaft 24 also carries the capstan 10 onto which the belt 6 is wound.
The two plates 20 and 22 rotatably support a transversely extending main shaft 26 which projects from opposite sides of the plates 20 and 22. Mounted on the side of the shaft 26, projecting from the plate 20, is a one way clutch 28 supporting a gear wheel 30. The clutch operates so that when the gear wheel is driven in one sense, the gear wheel 30 is locked to the shaft so that rotation of the gear wheel in that sense will drive the shaft 26 but rotation of the gear wheel 28 in the opposite sense will allow the gear wheel 28 to rotate relative to the shaft 26.
The gear wheel 30 meshes with gear wheel 26, the gear ratio being 2:1.
A U-shaped bracket 32 supports a core 34 extending coaxial with the capstan 10 and located within a central recess thereof. A coil spring (not shown) secured at one end to the spool 34 and at the other end to the capstan 10 lies between the core 34 and capstan 10 to bias the capstan 10 for rotation in one sense to draw in the belt 6 around to the capstan. Rotation of the capstan 10 in this sense is communicated to the gear wheel 30 via the gear wheel 26 and thus clutch 28 will allow the gear wheel 30 to rotate freely about the shaft 26.
Rigidly mounted on that end of the shaft 26 which projects from the plate 22 is a spring spool 36. Located in side by side relationship with the spool 36 is an auxiliary spring spool 40. The auxiliary spring spool 40 is mounted for free rotation about a stub shaft 38 which projects from the plate 22 and has an axis which extends parallel to the axis of the shaft 26.
A coil spring 42 has one end rigidly secured to the core of the spool 36 and the other end secured to the core of the auxiliary spool 40. The coil spring 42 is wound in its normally wound sense about the auxiliary spool 40 and connected to be wound in the opposite sense about the spool 36 (see Figure 6). A worm gear 46 located between the two plates 20 and 22 is rigidly secured to the shaft 26. The worm gear 46 meshes with a worm 44 which is rigid with the rotary shaft 48 of an electric generator 50. The housing of the generator 50 is rigidly secured to the support plates 20 and 22.
The gear rotation between the worm gear and the worm is 25 : 1 but may lie in the range of from 20:1 to 30:1.
The length of the belt 6 is typically 1 to 2 m so that it can be accommodated fully wound on the capstan 10. It may, however, be extended by attaching to its free end whatever length of rope is required.
In operation, starting from the point at which the belt 6 is at least partially wound around the capstan 10 and the wave motion of the sea is acting to move the boat and therefore the system 12 away from the tethering post 8, the belt 6 will slowly be drawn off the capstan 10 causing the capstan to rotate. The force to which the belt is subject to will depend upon the weight of the boat (which may well be several tons) as well as the frequency and size of the waves and therefore may be quite considerable. As the belt 6 unwinds, the capstan will rotate which in turn will rotate the gear wheels 26 and 30.
The clutch mechanism 28 will lock the gear wheel 30 to the shaft 26. Rotation of the shaft 26 will wind up the coil spring 42 and at the same time drive the worm gear 46. Rotation of the worm gear 46 will in turn drive the worm 44 and therefore the rotor of the generator 50. Rotation of the generator rotor will generator an AC electrical current which is fed to a transformer and an AC to DC rectifier circuit (both not shown) for conversion to a charging current to charge the vessel's batteries.
When the tension in the belt 6 ceases and the belt becomes slack, the coil spring about the spool 34 will act to rotate the capstan 10 in the opposite sense and so wind the belt 6 back up onto the capstan. This rotation will not drive the shaft 26 because of the decoupling action of the clutch 28. In the meantime, the tension previously built up in the spring 42 will now be released and will continue to drive the drive shaft 26 in the same direction so maintaining the drive to the generator during the periods that the belt 6 is not under tension.
The gearing of the system and the power of the spring 42 is so selected that the generator is driven at a speed of around 1500 revolutions per minute, hi order to avoid over-tension the spring 42, a spring release mechanism is provided (see Figure 6). As can be seen, a lever 52 is supported by a pivot 60. One end of the lever 52 rests on the coil spring 42 wound on the auxiliary spool 40 and is urged against the spring 42 by a bias spring 54. The other end of the lever 52 engages a pivotal latch 56 which when triggered releases the spring tension. In operation, as the shaft 26 starts to rotate, it draws the spring 42 from the auxiliary spool 40 onto the main spool 36. The lever 52 follows the reduction in the thickness or amount of spring 42 wound on the auxiliary spool 40. When a predetermined thickness has been reached, the latch 50 will lock the spool 40 against further rotation. Instead, the latch may act to de-couple the spring 42 from the shaft 26 with the aid of a clutch (not shown).
In addition or instead, the clutch 28 may be designed to slip while in engagement when a predetermined tension is reached.
It will be appreciated that the belt may be tethered to a structure other than a dock 2, for example, to the sea bed via a buoy or an anchor provided that there is relative movement between the vessel and the structure. In a modification, the system may be fitted the other way around with the generator secured to the dock 2 and the belt secured to the vessel.
It will be appreciated that while the worm drives the rotating shaft of the generator, it can instead be coupled to a gear mechanism which drives the stator and rotor of the generator in opposite directions at the same or different speeds thereby reducing the absolute speed at which each is driven.
In yet a further modification, the generator may be driven by a turbine (not shown) from compressed air supplied from a reservoir (not shown). The main shaft 26 is then used to drive a compressor which supplies compressed air to the reservoir. In the latter case, the worm gear, the worm and the spring mechanism are omitted.

Claims

1. An electricity generating system for generating electricity from wave motion, the system being mountable on a vessel and having an elongate retractable member with a portion being securable to a structure not subject to the same wave motion as the vessel, the system including a reel around which said elongate member can be wound, means for biasing said reel in a sense to retract said elongate member about said reel when slack, one way clutch means for transmitting rotation of said reel to a main drive shaft when said elongate member is drawn off said reel, means coupling said main drive shaft to a power storage mechanism, said power storage mechanism storing power from said main drive shaft when driven by said reel and releasing power to drive said generator.
2. A system according to Claim 1, wherein said power storage mechanism comprises a spring power mechanism, said main shaft being coupled to both the generator and power storage mechanism whereby said generator is drive alternately by said reel and said power storage mechanism.
3. A system according to Claim 1, wherein said power storage mechanism comprises a gas reservoir which is charged by a compressor driven by said main shaft and including a gas turbine supplied by said gas reservoir for driving said generator.
4. A system according any one of Claims 1 to 3, wherein said elongate retractable member comprises a web.
5. A system according to any preceding claim, wherein said biasing means comprising a core located within an axially extending recess in said reel and a coil spring in the gap between the core and the recess having one end rigid with the reel and its opposite end rigid with said core.
6. A system according to Claim 2, wherein said coupling means also couples the main drive shaft to the generator with the aid of a worm gear rigid with said main shaft and a worm meshing with said worm gear and rigid with the rotary shaft of the generator.
7. A system according to Claim 2, wherein said coupling means is arranged to drive the stator and rotor of the generator in opposite senses.
8. A system according to Claim 2, wherein said spring power mechanism comprises a pair of rotary reels, one said reel supporting a coil spring wound there around in the sense in which the spring is biased, the other of said reels being rigid with the main drive shaft and being connected to the free end of the coil spring to wind the coil spring there around in the opposite sense to which it is biased.
9. A system according to Claim 8, including means for sensing when the spring tension in said coil spring exceeds a predetermined limit and means operative in response to said limit being reached to limit further tension being applied to said spring.
10. An electricity generating system, substantially as hereinbefore described, by way of example, with reference to the accompanying drawings.
PCT/GB2001/003681 2000-08-17 2001-08-17 Electricity generating systems WO2002016195A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001278623A AU2001278623A1 (en) 2000-08-17 2001-08-17 Electricity generating systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0020175.6 2000-08-17
GB0020175A GB2365929A (en) 2000-08-17 2000-08-17 Wave powered electricity generating systems e.g.for recharging a ship's batteries

Publications (1)

Publication Number Publication Date
WO2002016195A1 true WO2002016195A1 (en) 2002-02-28

Family

ID=9897724

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/003681 WO2002016195A1 (en) 2000-08-17 2001-08-17 Electricity generating systems

Country Status (3)

Country Link
AU (1) AU2001278623A1 (en)
GB (1) GB2365929A (en)
WO (1) WO2002016195A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7122913B2 (en) 2004-07-09 2006-10-17 Wittmar Engineering And Construction, Inc. Modular power generation apparatus and method
WO2018011187A1 (en) * 2016-07-12 2018-01-18 Fobox As Mooring assembly for a floating vessel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996323A (en) * 2012-12-12 2013-03-27 大连理工大学 Integral double-rotator direct-drive power generator adopting tidal stream energy
CN115230872B (en) * 2022-06-07 2023-06-09 西南石油大学 Self-advancing type anchoring equipment and method for underwater robot

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988592A (en) * 1974-11-14 1976-10-26 Porter William H Electrical generating system
US4846090A (en) * 1988-03-28 1989-07-11 Palmquist Terrence L Boat mooring device
US5819679A (en) * 1998-04-01 1998-10-13 Bonate; Douglas J. Integral boat tethering device
US5944451A (en) * 1998-03-26 1999-08-31 Snap-Back Enterprises, Inc. Dock compensator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015657B (en) * 1978-03-01 1982-02-03 Evans D V Davis J P Utilizing wave energy
US4228360A (en) * 1979-06-08 1980-10-14 Pablo Navarro Wave motion apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988592A (en) * 1974-11-14 1976-10-26 Porter William H Electrical generating system
US4846090A (en) * 1988-03-28 1989-07-11 Palmquist Terrence L Boat mooring device
US5944451A (en) * 1998-03-26 1999-08-31 Snap-Back Enterprises, Inc. Dock compensator
US5819679A (en) * 1998-04-01 1998-10-13 Bonate; Douglas J. Integral boat tethering device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7122913B2 (en) 2004-07-09 2006-10-17 Wittmar Engineering And Construction, Inc. Modular power generation apparatus and method
US7466033B2 (en) 2004-07-09 2008-12-16 Cleanair Logix, Inc. Modular power generation apparatus and method
WO2018011187A1 (en) * 2016-07-12 2018-01-18 Fobox As Mooring assembly for a floating vessel
KR20190026777A (en) * 2016-07-12 2019-03-13 포박스 에이에스 Mooring assembly for floating vessel
US10870466B2 (en) 2016-07-12 2020-12-22 Fobox As Mooring assembly for a floating vessel
US10926841B2 (en) 2016-07-12 2021-02-23 Fobox As Mooring assembly for a floating vessel
KR102348628B1 (en) 2016-07-12 2022-01-11 포박스 에이에스 Mooring Assemblies for Floating Vessels

Also Published As

Publication number Publication date
GB0020175D0 (en) 2000-10-04
AU2001278623A1 (en) 2002-03-04
GB2365929A (en) 2002-02-27

Similar Documents

Publication Publication Date Title
US8564150B2 (en) Wave power plant
EP2300309B1 (en) Water current powered generating apparatus
CN102140995A (en) Matrix type sea wave power generation device
WO2004071864A2 (en) Deployable and autonomous mooring system
PT2193070E (en) Submerged buoy
WO2002016195A1 (en) Electricity generating systems
KR20190089847A (en) Wave energy conversion system and method for generating power using wave energy
WO2011140196A2 (en) Buoy
CN113840776B (en) Towing winch system and method for performing towing operations, in particular for assisting a vessel in a course-passing convoy operation
JPH03168363A (en) Wave power generating device
US5997374A (en) Vessel securing system
CN216035033U (en) Underwater robot with cable winding and unwinding functions
US11878775B2 (en) Leash system and methods of use
CN113666205A (en) Shore power cable reel for ship
CA2493415A1 (en) Deployment apparatus for an underwater towed-array antenna
JP2011020830A (en) Land power-supply cable reel
CN115650090B (en) Multi-angle cable winding and unwinding device
CN220787717U (en) Multifunctional cable winding and unwinding device
EP3698039A1 (en) Buoy and method for the generation of electrical energy
JP2020180558A (en) Foldable wave power generator
CN218986882U (en) Thread loosening device for ship
US11795903B2 (en) Modular wave energy converter
EP1057778A2 (en) Hoisting winch
WO2009004446A2 (en) System for recovering a mooring line of a craft
WO1999047412A1 (en) Equipment concerning mooring of floating units

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP