IE86151B1 - Wave energy converter - Google Patents

Wave energy converter Download PDF

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Publication number
IE86151B1
IE86151B1 IE20120018A IE20120018A IE86151B1 IE 86151 B1 IE86151 B1 IE 86151B1 IE 20120018 A IE20120018 A IE 20120018A IE 20120018 A IE20120018 A IE 20120018A IE 86151 B1 IE86151 B1 IE 86151B1
Authority
IE
Ireland
Prior art keywords
buoyant body
waves
power converter
spring
pivot
Prior art date
Application number
IE20120018A
Other versions
IE20120018A1 (en
Inventor
John Pitchford
Original Assignee
John Pitchford
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 John Pitchford filed Critical John Pitchford
Publication of IE20120018A1 publication Critical patent/IE20120018A1/en
Publication of IE86151B1 publication Critical patent/IE86151B1/en

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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
    • F03B13/1805—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 hinged to the rem
    • F03B13/181—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 hinged to the rem for limited rotation
    • F03B13/1815—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 hinged to the rem for limited rotation with an up-and-down movement
    • 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
    • F03B13/1805—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 hinged to the rem
    • F03B13/181—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 hinged to the rem for limited rotation
    • 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)
  • 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 device for absorbing the energy that is carried in waves on the surface of the sea comprising: a buoyant body; a weight; a pivot; a beam; a spring; a power converter and a mooring cable. The beam is positioned across the top of the buoyant bady supported at one end by a pivot and at the other end by a power converter and spring. The device is moored to the sea bed by a cable from the end of the beam. A weight is attached to the opposite end of the beam to the mooring cable. A series of waves passing the device will cause the buoyant body to rise and fall, thereby extending and compressing the power converter and absorbing power from the waves. <Figure 1>

Description

WAVE ENERGY CONVERTER Waves arise naturally on the surface of the sea as a result of wind passing over the surface of the water A wave grows in height by absorbing energy from the wind. When a wave reaches a shelving shoreline, it breaks and dissipates its energy as heat.
Converting the energy in waves into useful power has been the quest of inventors for many years.
Whilst waves carry a large quantity of energy, the major problem in converting this energy into power is the fact that they move very slowly with low amplitude.
This invention is a device that will absorb the energy from a series of waves and convert it into power.
The primary embodiment of the device is shown in Figure 1. The device comprises: a buoyant body (1); a weight (2); a pivot (3); a beam (4); a spring (5); a power converter (6) and a mooring cable (7) The buoyant body (1) floats on the surface of the sea. For the purpose of this patent, the side ofthe buoyant body (1) that faces the oncoming waves is called the leading side, and the side ofthe buoyant body (1) that faces the receding waves is called the trailing side. The buoyant body (1) has a beam across the top. The beam overlaps the leading and trailing side of the buoyant body. The beam (4) is connected to the buoyant body (1) by a pivot at the trailing side, The beam (4) is connected to the leading side ofthe buoyant body (1) by the spring (5) and power converter (6). The device is connected to the sea bed by a mooring cable (7), which is attached to the end of the beam (4) that overlaps the leading side of the buoyant body (1). The weight is attached to the end of the beam that overlaps the trailing side of the buoyant body (1).
A second embodiment is shown in Figure 2. The device comprises the same components as in the primary embodiment. In this embodiment, compared with the primary embodiment, the pivot (3) is located on the leading side of the buoyant body (1) and the power converter (6) and spring (7) are located on the trailing side of the buoyant body.
The description of the operation of the second embodiment is exactly the same as the primary embodiment.
A third embodiment is shown in Figure 3. The device comprises the same components as in the primary embodiment except that: a cantilever (8) is attached to the trailing side of the buoyant body to which the weight (2) is attached, rather than being attached to the beam (4).
The description of the operation of the third embodiment is exactly the same as the primary embodiment A fourth embodiment is shown in Figure 4. The device comprises the same components as in the third embodiment. In this embodiment the position of the pivot (3) is interchanged with that of the spring (5) and power converter (6).
The description of the operation of the fourth embodiment is exactly the same as the primary embodiment.
A fifth embodiment is shown in Figure 5. The device comprises the same components as in the primary embodiment. In this embodiment, the mooring line (7) is extended so that the device sits at an angle to the mean level of the surface of the sea. The waves on the surface of the sea contain both potential energy and kinetic energy. The description of the operation of the primary embodiment explains how the device will absorb the potential energy from the waves. In this embodiment, the kinetic energy of the waves pushes laterally against the buoyant body (1). This lateral force will give additional compression to the power converter (6).
The fifth embodiment could well benefit from the buoyant body (1) being in the shape of a Salter’s Duck as shown in Figure 5. However, this patent does not make any claims as to the shape of the buoyant body (1).
In all embodiments, except the fourth, weights can be added to the buoyant body (1), around the location of the spring, to assist the spring.

Claims (3)

1. A device for absorbing the energy that is carried in waves on the surface of the sea comprising: a buoyant body; a weight; a pivot; a beam; a spring; a 5 power converter and a mooring cable, wherein, the mooring cable is attached between the sea bed and an end of the beam which overlaps the leading side of the buoyant body, the beam is supported on a first side of the buoyant body by the spring and power converter and on a second side of the buoyant body by the pivot, the weight is attached to either an end of 10 the beam which overlaps the trailing side of the buoyant body or to a cantilever attached to the trailing side of the buoyant body, so that, a series of waves passing the device will cause the buoyant body to rise and fall thereby extending and compressing the power converter, producing power and absorbing power from the waves. 15
2. A device as claimed in claim 1, wherein, the first side is the leading side and the second side is the trailing side.
3. A device as claimed in claim 1, wherein, the first side is the trailing side and the second side is the leading side.
IE20120018A 2011-02-03 2012-01-13 Wave energy converter IE86151B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBUNITEDKINGDOM03/02/2011GB1101825
GB1101825.6A GB2487753A (en) 2011-02-03 2011-02-03 Wave energy converter

Publications (2)

Publication Number Publication Date
IE20120018A1 IE20120018A1 (en) 2012-09-12
IE86151B1 true IE86151B1 (en) 2013-03-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IE20120018A IE86151B1 (en) 2011-02-03 2012-01-13 Wave energy converter

Country Status (2)

Country Link
GB (2) GB2487753A (en)
IE (1) IE86151B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105484931A (en) * 2014-09-24 2016-04-13 无锡津天阳激光电子有限公司 Pumping-unit-imitated sea wave electric generator
CN111365182A (en) * 2020-05-06 2020-07-03 荆门创佳机械科技有限公司 Inclined wave-facing plate rocker type wave power generation device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3419565A1 (en) * 1984-05-25 1985-11-28 Rolf Dr. 5090 Leverkusen Brück Device for generating energy from sea waves
GB0802291D0 (en) * 2008-02-07 2008-03-12 Pure Marine Gen Ltd Wave energy conversion apparatus

Also Published As

Publication number Publication date
GB201122396D0 (en) 2012-02-08
GB2487753A (en) 2012-08-08
GB201101825D0 (en) 2011-03-16
GB2487819B (en) 2013-01-30
GB2487819A (en) 2012-08-08

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