WO2020012453A4 - A wave-lock marine energy converter - Google Patents

A wave-lock marine energy converter Download PDF

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Publication number
WO2020012453A4
WO2020012453A4 PCT/IE2019/000007 IE2019000007W WO2020012453A4 WO 2020012453 A4 WO2020012453 A4 WO 2020012453A4 IE 2019000007 W IE2019000007 W IE 2019000007W WO 2020012453 A4 WO2020012453 A4 WO 2020012453A4
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
latch control
fluid
compressor
damper
Prior art date
Application number
PCT/IE2019/000007
Other languages
French (fr)
Other versions
WO2020012453A1 (en
Inventor
Brian Wall
Original Assignee
Brian Wall
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 Brian Wall filed Critical Brian Wall
Priority to GBGB2101676.1A priority Critical patent/GB202101676D0/en
Priority to EP19753201.3A priority patent/EP3821122A1/en
Publication of WO2020012453A1 publication Critical patent/WO2020012453A1/en
Publication of WO2020012453A4 publication Critical patent/WO2020012453A4/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"
    • F03B13/20—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" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
    • 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
    • F03B13/1845—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 slides relative to the rem
    • F03B13/187—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 slides relative to the rem and the wom directly actuates the piston of a pump
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/18—Purpose of the control system to control buoyancy
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/20—Purpose of the control system to optimise the performance of a machine
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/20—Purpose of the control system to optimise the performance of a machine
    • F05B2270/202—Tuning to wave conditions
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to an apparatus for extracting energy from aquatic waves. According to the invention a buoyant moving component can be connected to a submerged floatation component only by means of a shaft and buoyant guides. A latching mechanism that detects the crest and trough of each wave can halt the buoyant moving component at both the crest and the trough of each wave and can release the buoyant moving component when the following trough or crest has arrived so that the buoyant moving component descends and ascends the maximum distance and captures the maximum amount of energy without making direct contact with the submerged floatation component. In particular, the invention utilizes buoyant guides to control a rotating cylinder around a compressor unit to control the movement of the buoyant moving component in accordance with the waves.

Claims

AMENDED CLAIMS
received by the International Bureau on 07 January 2020 (07.01.2020)
1 ) An apparatus for harnessing energy in water waves comprising of:
a) a floatation component (1 ), which is a buoyant floating structure that is submerged below the water surface, and which supports the apparatus in water; wherein the floatation component (1 ) contains an adjustable buoyancy chamber (36) and also contains an access aperture (37), which allows water to move in and out of the adjustable buoyancy chamber (36) and also allows access for maintenance purposes to the adjustable buoyancy chamber (36),
wherein the upper part of the floatation component (1 ) contains floatation component guide shafts (52), which are shafts that are vertical in orientation, and open at the top;
b) stabilization components to stabilize the floatation component (1 ) at a fixed location and at a fixed level below the water surface,
wherein the stabilization components include:
mooring ropes (7) connecting the floatation component (1 ) to seabed anchors, stability fins (4) attached to the sides of the floatation component (1 ),
a stability plate (3) fixed to, and extending horizontally, from the lower end of the floatation component (1);
c) a buoyant moving component (2) that includes:
a buoyant moving component shaft (8) that is free to move vertically inside the floatation component (1) to convert wave motion into useful energy,
a buoyant moving component float (9) that contains buoyant moving component guide channels (54) that are vertical in orientation;
d) a compressor unit within the floatation component (1 ) to compress fluid: wherein the compressor unit includes:
a compressor unit outer housing (32),
a compressor chamber (14) that is in the shape of a cylinder and that is
surrounded by the compressor unit outer housing (32),
pipes that deliver fluid to, and remove fluid from, the compressor chamber (14) via the compressor unit outer housing (32),
valves that control the direction of flow of incoming and outgoing fluid,
wherein the compressor chamber (14) surrounds part of the buoyant moving component shaft (8), wherein the buoyant moving component shaft (8) is free to move vertically within the compressor chamber (14),
wherein the section of the buoyant moving component shaft (8) that is within the compressor chamber (14) is wider than the rest of the buoyant moving component shaft (8) and forms a compressor piston (13),
wherein the compressor piston (13) fits closely within the compressor chamber
(14),
wherein the compressor chamber (14) contains fluid inlet and fluid outlet apertures (33);
e) a guiding structure to ensure that the movement of the buoyant moving component (2) is always vertical,
wherein the guiding structure includes guides (10) that are long vertical rigid structures supported by the floatation component (1 ),
wherein some of the guides (10) are supported from within the floatation component guide shafts (52),
wherein the guides (10) protrude freely through the buoyant moving component guide channels (54) in the buoyant moving component float (9);
f) a latching mechanism to delay the ascent and descent of the buoyant moving component (2),
wherein some guides (10) are latch control piston guides (15) that are buoyant but weighted to float partly submerged in water,
wherein the lowest part of a latch control piston guide (15) is wider than the main body of the latch control piston guide (15) and forms a latch control piston
(58),
wherein some of the floatation component guide shafts (52) are latch control guide shafts (52),
wherein the lower section of a latch control guide shaft (52) is wide enough to accommodate a latch control piston (58) while the upper section of the latch control guide shaft (52) is too narrow to accommodate a latch control piston (58), wherein the lowest part of each latch control guide shaft (52) is fluidly connected to a latch control chamber (24), which is a chamber that retains fluid and accommodates rotating structures,
wherein each latch control guide shaft (52) is also fluidly connected to the latch control chamber (24) via a latch control chamber fluid pipe loop (57), wherein the latch control chamber fluid pipe loop (57) is a pipe connected to the latch control guide shaft (52) via an aperture near, but not at, the top of the widest section of the latch control guide shaft (52),
wherein the latch control guide shaft (52), the latch control chamber fluid pipe loop (57), and the latch control chamber (24) form a circuit through which fluid is free to flow in either direction,
wherein the latch control chamber (24) contains latch control blades (25) that are positioned at an angle perpendicular to the plane of the latch control chamber
(24),
wherein the latch control blades (25) are free to rotate in response to fluid moving between the fluid connection to the latch control guide shaft (52) and the fluid connection to the latch control chamber fluid pipe loop (57),
wherein each latch control blade (25) is fixed to a latch sleeve (23) located at the center of the latch control chamber (24),
wherein the latch sleeve (23) is a cylinder in shape, stands perpendicular to the plane of the latch control chamber (24) and parallel to the walls of the latch control chamber (24),
wherein the latch sleeve (23) extends above the latch control chamber (24) through an adjuster chamber (27),
wherein the adjuster chamber (27) is a chamber that retains fluid and
accommodates rotating structures,
wherein the adjuster chamber (27) contains adjuster chamber partitions (29) that partition the adjuster chamber (27) into compartments in the adjuster chamber,
wherein the adjuster chamber (27) contains adjuster chamber blades (28) that are fixed to the latch sleeve (23),
wherein each adjuster chamber blade (28) is positioned perpendicular to the plane of the adjuster chamber (27),
wherein each adjuster chamber blade (28) is free to rotate within the adjuster chamber (27) in response to variations in fluid pressure,
wherein each adjuster chamber blade (28) is positioned between the adjuster chamber partitions (29),
wherein each compartment in the adjuster chamber (27) is fluidly connected to a fluid reservoir via two fluid connections to the fluid reservoir, wherein the fluid connections to the fluid reservoir are located on either side of each adjuster chamber blade (28),
wherein the fluid connections to the fluid reservoir are located adjacent to an adjuster chamber partition (29) on opposite sides of each compartment in the adjuster chamber (27),
wherein the fluid reservoir forms a single adjuster chamber fluid pipe loop (31), wherein each adjuster chamber fluid pipe loop (31 ) forms a vertical loop located above the uppermost part of the adjuster chamber (27) and stands perpendicular to the plane of the adjuster chamber (27),
wherein each adjuster chamber fluid pipe loop (31 ) contains air trapped at the highest point of the adjuster chamber fluid pipe loop (31 ),
wherein the latch sleeve (23) extends above the adjuster chamber (27) and surrounds the compressor chamber (14),
wherein the latch sleeve (23) is surrounded by the compressor unit outer housing (32),
wherein the latch sleeve (23) is free to rotate between the compressor unit outer housing (32) and the compressor chamber (14),
wherein the compressor unit outer housing (32) contains fluid inlet and fluid outlet apertures (35),
wherein the compressor unit outer housing apertures (35) correspond exactly with the compressor chamber apertures (33),
wherein the exterior of the compressor unit outer housing apertures (35) are connected to valved compressor chamber fluid inlet pipes (6) and valved compressor chamber fluid outlet pipes (5),
wherein the section of the latch sleeve (23) situated between the compressor chamber (14) and the compressor unit outer housing (32) contains latch sleeve apertures (34),
wherein the latch sleeve apertures (34) are located to align sometimes with the fluid inlet and fluid outlet apertures in the wall of the compressor chamber (14) and the corresponding apertures in the wall of the compressor unit outer housing (32), wherein the latch sleeve apertures (34) align with the apertures in the wall of the compressor chamber (14) and the corresponding apertures in the wall of the compressor unit outer housing (32) only when the latch control blades (25) are equally distant between the fluid connections to the latch control guide shafts (52) and the fluid connections to the latch control chamber fluid pipe loops (57).
2) An apparatus as claimed in claim 1 wherein the floatation component (1 ) comprises one or more floatation units.
3) An apparatus as claimed in claim 2, wherein the interior of a floatation unit is connected to the exterior of the floatation component (1 ) by means of one or more valved hose pipes, which can extend to reach the water surface.
4) An apparatus as claimed in claim 1 , wherein the stabilization components include mooring ropes (7) connected to the upper and lower parts of the floatation component (1 ).
5) An apparatus as claimed in claim 4, wherein the stabilization components include a stabilization device in the form of a stability plate (3) that is suspended below the floatation component (1) and is connected by ropes to the lower end of the floatation component (1 ).
6) An apparatus as claimed in claim 1 , wherein the stabilization components include a damper chamber (39) which contains a damper float (40).
7) An apparatus as claimed in claim 6) wherein the base of the damper float (40) is connected directly by mooring ropes (7) to the seabed anchors or to ropes connected to the stability plate (3) that is suspended below the floatation component (1 ).
8) An apparatus as claimed in claim 7, wherein the damper float (40) fits exactly within the damper chamber (39).
9) An apparatus as claimed in claim 8, wherein the damper float (40) contains vertical damper float channels (41 & 42).
10) An apparatus as claimed in claim 9, wherein some of the damper float channels (41 & 42) contain valves biased to allow damper chamber fluid to flow from above the damper float (40) to below the damper float (40).
11 ) An apparatus as claimed in claim 10, wherein the damper chamber (39) contains a vertical damper chamber shaft (45) that extends through the damper float (40) and, around which, the damper float (40) is free to move vertically.
12) An apparatus as claimed in claim 11 , wherein the damper chamber shaft (45) is connected to an external source of fluid.
13) An apparatus as claimed in claim 12, wherein the damper chamber shaft (45) fluidly connects the parts of the damper chamber (39) above and below the damper float (40). 14) An apparatus as claimed in claim 13, wherein the damper chamber shaft (45) contains damper chamber inlet valves (44) that are biased to admit fluid to the part of the damper chamber (39) below the damper float (40) whenever a set pressure has been reached in the damper chamber shaft (45).
15) An apparatus as claimed in claim 14, wherein the damper chamber shaft (45) extends out through the upper part of the damper chamber (39) and as far as the uppermost part of the floatation component (1 ).
16) An apparatus as claimed in claim 15, wherein the walls of the damper chamber shaft (45) in the upper part of the damper chamber (39) contain damper chamber shaft apertures (46) through which the damper chamber fluid is free to circulate.
17) An apparatus as claimed in claim 16, wherein the damper chamber shaft (45) contains a damper chamber piston guide (16) that fits inside the damper chamber shaft (45).
18) An apparatus as claimed in claim 17, wherein the damper chamber piston guide (16) is long enough to extend through the upper part of the floatation component (1 ) and through a buoyant moving component guide channel (54).
19) An apparatus as claimed in claim 18, wherein the damper chamber piston guide (16) is buoyant enough to rise and fall with each wave.
20) An apparatus as claimed in claim 1 , wherein the buoyant moving
component shaft (8) contains a vertical channel with inlet and outlet apertures.
21 ) An apparatus as claimed in claim 1 , wherein the compressor chamber apertures (33) are located both above and below the optimum stroke of the compressor piston (13).
22) An apparatus as claimed in claim 21 , wherein the sections of the
compressor chamber (14) above and below the compressor chamber apertures (33) contain high pressure release valves.
23) An apparatus as claimed in claim 1 , wherein an outlet pipe connected to one part of the compressor chamber (14) is connected to an inlet pipe connected to another part of the compressor chamber (14).
24) An apparatus as claimed in claim 1 , wherein the compressor chamber fluid outlet apertures are connected to adjustable outlet valves.
25) An apparatus as claimed in claim 1 , wherein pipes that remove fluid from the compressor chamber (14) connect the compressor unit to a device for the exploitation of compressed fluid or to a compressed fluid storage tank.
26) An apparatus as claimed in claim 1 , wherein some, or all, of the latch control piston guides (15) are fixed together by a buoyant guides link (51 ).
27) An apparatus as claimed in claim 26, wherein the buoyant guides link (51) is fixed to the latch control piston guides (15) at a distance above the buoyant moving component (2) that is greater than the longest stroke of the compressor piston (13).
28) An apparatus as claimed in claim 27, wherein some, or all, of the latch control piston guides (15) contain a buoyant guide block, wherein a buoyant guide block is a short section of the latch control piston guide (15) that is wider than the buoyant moving component guide channels (54) and the floatation component guide shafts (52).
29) An apparatus as claimed in claim 28, wherein each buoyant guide block is located on a latch control piston guide (15) between the floatation component (1 ) and the buoyant moving component (2).
30) An apparatus as claimed in claim 1 ) wherein each latch control guide shaft (52) is fluidly connected to the latch control chamber (24) via the uppermost part of the latch control chamber (24).
31 ) An apparatus as claimed in claim 30) wherein each latch control chamber fluid pipe loop (57) is fluidly connected to the latch control chamber (24) via the uppermost part of the latch control chamber (24).
32) An apparatus as claimed in claim 31 ) wherein the latch control chamber (24) contains vertical partitions (26) that partition the latch control chamber (24) into separate sections within the latch control chamber (24).
33) An apparatus as claimed in claim 32, wherein each latch control blade (25) is located between the latch control partitions (26).
34) An apparatus as claimed in claim 33, wherein the fluid connections to the latch control guide shaft (52) and the fluid connections to the latch control chamber fluid pipe loop (57) are located on opposite sides of each section within the latch control chamber and adjacent to the opposite latch control partitions (26).
35) An apparatus as claimed in claim 34, wherein the latch control chamber (24) contains barriers to the rotation of latch control blades (25) in the form of latch control blade stops (38) that are positioned no farther than a part of the way across the diameter of any fluid connection to the latch control guide shaft (52) or any fluid connection to the latch control chamber fluid pipe loop (57).
36) An apparatus as claimed in claim 1 , wherein some sections within the latch control chamber (24) are fluidly connected to floatation component guide shafts
(52).

40

STATEMENT

AMENDMENT TO CLAIMS UNDER ARTICLE 19

INTERNATIONAL APPLICATION NUMBER: PCT/IE 2019/000007

INTERNATIONAL FILING DATE: _ 5/07/2019

PRIORITY DATE: _ 9/07/2018

ISA: EUROPEAN PATENT OFFICE

AMENDMENTS TO CLAIMS IN APPLICATION FILED 5/07/2019:

A) To include reference signs in parentheses as recommended by the

International Searching Authority.

Claims changed: Claims 1 - 36

Claims unchanged: None.

B) To include correct numbering as recommended by the International Searching Authority.

Claims changed: Claims 35 - 36

Claims unchanged: 1 - 34.

C) To amend wording in the Claims so that the terminology used in the

Description of the Drawings is also the terminology used in the Claims.

Claims changed: Claims 1 , 5, 7, 21 , 22, 32, 34, 36.

Claims unchanged: 2, 3, 4, 6, 8, 9, 10, 11 , 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26, 27, 28, 29, 30, 31 , 33, 35

BRIAN WALL 7/1/20

PCT/IE2019/000007 2018-07-09 2019-07-05 A wave-lock marine energy converter WO2020012453A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB2101676.1A GB202101676D0 (en) 2018-07-09 2019-07-05 A wave-lock marine energy converter
EP19753201.3A EP3821122A1 (en) 2018-07-09 2019-07-05 A wave-lock marine energy converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE2018/0213 2018-07-09
IE20180213A IE87215B1 (en) 2018-07-09 2018-07-09 A wave-lock marine energy converter

Publications (2)

Publication Number Publication Date
WO2020012453A1 WO2020012453A1 (en) 2020-01-16
WO2020012453A4 true WO2020012453A4 (en) 2020-03-05

Family

ID=67620508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IE2019/000007 WO2020012453A1 (en) 2018-07-09 2019-07-05 A wave-lock marine energy converter

Country Status (3)

Country Link
GB (1) GB202101676D0 (en)
IE (1) IE87215B1 (en)
WO (1) WO2020012453A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2897123B2 (en) * 2020-08-28 2023-04-14 Revaliente Santiago Martinez Procedure and device for capturing wave energy
IE20210189A1 (en) * 2021-11-13 2023-05-24 Wall Brian A Wave Latching Full-Length Hollow Shaft Marine Energy Converter for Scalable Energy Conversion and Storage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076463A (en) * 1976-10-26 1978-02-28 Mordechai Welczer Wave motor
US5842838A (en) * 1996-11-04 1998-12-01 Berg; John L. Stable wave motor
AU2005316494B2 (en) * 2004-12-16 2011-05-19 Independent Natural Resources, Inc. Buoyancy pump power system
IE86608B1 (en) 2014-06-20 2015-12-30 Brian Wall A hollow piston wave capture pump apparatus and process for harnessing energy from aquatic waves

Also Published As

Publication number Publication date
IE20180213A1 (en) 2020-06-24
WO2020012453A1 (en) 2020-01-16
IE87215B1 (en) 2021-03-31
GB202101676D0 (en) 2021-03-24

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