JPH0461126B2 - - Google Patents
Info
- Publication number
- JPH0461126B2 JPH0461126B2 JP59070131A JP7013184A JPH0461126B2 JP H0461126 B2 JPH0461126 B2 JP H0461126B2 JP 59070131 A JP59070131 A JP 59070131A JP 7013184 A JP7013184 A JP 7013184A JP H0461126 B2 JPH0461126 B2 JP H0461126B2
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- duct
- caisson
- valve
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 230000000979 retarding effect Effects 0.000 claims description 22
- 238000010248 power generation Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/08—Tide or wave power plants
-
- 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
- F03B13/141—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 with a static energy collector
- F03B13/142—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 with a static energy collector which creates an oscillating water column
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Description
【発明の詳細な説明】
本発明は、ケーソンに搭載した空気タービン式
波力発電装置を強大な波エネルギーから保護する
とともに、ケーソン自体の安定性と消波性を増大
できる、ケーソン型波力発電装置における防護装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a caisson-type wave power generation device that can protect an air turbine type wave power generation device mounted on a caisson from powerful wave energy and increase the stability and wave dissipation performance of the caisson itself. It relates to protective devices in equipment.
従来、波浪のエネルギーを利用した発電方式と
して、浮遊型及びケーソン型のものが実用化され
ており、なかでも、ケーソン型のものは、ケーソ
ン自体が海底に固定され、防波堤や護岸などの構
造物として用いられるものであるため、有望なも
のとされている。 Conventionally, floating and caisson-type power generation systems have been put into practical use that utilize the energy of waves. Among these, the caisson-type system has the caisson itself fixed to the seabed, and is used to power structures such as breakwaters and seawalls. It is considered to be a promising product because it is used as a
ケーソンを利用した波力発電方式は、一般的に
第１図に示すように、通常のコンクリートケーソ
ン１の前面にこれと一体として没水部を開口した
遊水室２を設け、この遊水室２の上部に空気孔３
が設けられ、これに接続してダクト４とタービン
６及び発電機７とがケーソン上部室５内に設けら
れている。この方式においては、波の峰が来襲す
ると、それにともなつて遊水室２内の水位が上昇
し、遊水室２の上部にある空気が空気孔３及びダ
クト４を通して排出されるようになり、その空気
流によつて空気タービン６が回転し、これに接続
の発電機が回転して発電されることになる。ま
た、波の谷がくるときは、前記とは逆の空気流と
なるので、空気流の方向に係わりなく一方向に回
転できる空気タービンを利用するか整流弁で空気
流を一方向に制御するかして、、継続して発電力
が得られるような方法が採られている。 As shown in Fig. 1, the wave power generation system using a caisson generally includes a water retarding chamber 2 with an open submerged part on the front side of an ordinary concrete caisson 1. 3 air holes at the top
A duct 4, a turbine 6, and a generator 7 are provided in the caisson upper chamber 5 and connected thereto. In this method, when the crest of a wave hits, the water level in the water retarding chamber 2 rises, and the air in the upper part of the water retarding chamber 2 is discharged through the air hole 3 and the duct 4. The air turbine 6 is rotated by the air flow, and a generator connected thereto is rotated to generate electricity. Also, when a wave trough comes, the air flow is opposite to the above, so it is necessary to use an air turbine that can rotate in one direction regardless of the direction of the air flow, or to control the air flow in one direction with a rectifier valve. In this way, a method is adopted that allows continuous generation of power.
通常の直立ケーソンでは、入射する波のエネル
ギーはほとんど反射してしまうのに対し、波力発
電装置を組入れたケーソンでは、入射波のエネル
ギーを電気エネルギーに変換して取出すため、そ
の発電したエネルギー分だけ消波することができ
る。このため、この波力発電ケーソンは発電と同
時に消波ケーソンとしての機能を発揮することが
できるとともにケーソンとしての安定性も増大さ
れるという優れた特徴を有している。 In a normal upright caisson, most of the energy of the incident wave is reflected, whereas in a caisson incorporating a wave power generation device, the energy of the incident wave is converted into electrical energy and extracted, so the generated energy is can only be dissipated. Therefore, this wave power generation caisson has the excellent feature that it can function as a wave-dissipating caisson at the same time as generating electricity, and its stability as a caisson is also increased.
しかしながら、波力発電ケーソンにおいては、
大波浪時には遊水室２の水位変動も大きくなり、
過大な空気流速によつて空気タービン６が過回転
したり、或は水塊自体がダクト４に侵入して空気
タービン６や発電機７を破壊するおそれがある。
その対策としては、従来、逃気弁による方法或は
閉鎖弁による方法が考えられてきた。逃気弁によ
る方法は、タービン孔３とは別に遊水室２上部に
孔を設け、遊水室内の空気圧が異常に高くなると
逃気弁が開放されて圧力を低下させるようにした
ものであるが、この方法ではかえつて遊水室２内
の水位が上昇しやすくなり、タービンダクト４が
浸水する危険が増大するという欠点がある。ま
た、閉鎖弁による方法は、孔３やダクト４に閉鎖
弁を設けて、異常時にこれを閉鎖させるようにし
たものであるが、この方法は、遊水室２内の圧力
が増大するが空気タービン６や発電機７を防護す
るのに有効と考えられる。しかし、この方法では
波浪のエネルギーをほとんど消費しないため、ケ
ーソンとしての消波性能及びケーソンの安定性と
いう点での向上は全く期待できないという欠点が
ある。 However, in wave power generation caissons,
When there are large waves, the water level in water chamber 2 will fluctuate greatly.
Excessive air velocity may cause the air turbine 6 to overspeed, or the water mass itself may enter the duct 4 and destroy the air turbine 6 or the generator 7.
Conventionally, as a countermeasure against this problem, a method using an escape valve or a method using a closing valve has been considered. In the method using a relief valve, a hole is provided in the upper part of the water retarding chamber 2 in addition to the turbine hole 3, and when the air pressure in the water retarding chamber becomes abnormally high, the relief valve is opened to reduce the pressure. This method has the disadvantage that the water level in the water retarding chamber 2 tends to rise, increasing the risk that the turbine duct 4 will be flooded. In addition, the method using a shutoff valve is a method in which a shutoff valve is provided in the hole 3 or the duct 4 and is closed in the event of an abnormality. This is considered effective for protecting the generator 6 and the generator 7. However, since this method consumes almost no wave energy, there is a drawback that no improvement can be expected in terms of the wave-dissipating performance of the caisson and the stability of the caisson.
本発明は、上記のようなケーソン型波力発電方
式による問題点を解決し、荒天時における過大な
波エネルギーから空気タービン及び発電機を防護
するとともに、ケーソン堤としての消波性能及び
安定性の向上を図ることを目的としたものであ
る。 The present invention solves the problems with the caisson-type wave power generation system as described above, protects the air turbine and generator from excessive wave energy in stormy weather, and improves the wave-dissipating performance and stability of the caisson embankment. The purpose of this is to improve the performance.
以下、図面に基づいて本発明の実施例を説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第２図は基本的な一実施例を示したもので、ケ
ーソンの本体部分については記載を省略してい
る。以下第３図乃至第６図の実施例においても同
様である。この第２図にいて、２はケーソンの前
面に設けられた遊水室で、その上部は水面との間
に所要の広さの空気連通室９が形成される大きさ
となつている。空気連通室９に接続してタービン
ダクト１０が設けられ、その内部に空気流の方向
によらず一方向に回転するタービン６及び発電機
７が設置されている。タービン６に至る前のター
ビンダクト１０には外気に連通する迂回ダクト１
１が接続分岐され、その接続部には、図示を略し
た駆動装置により、タービンダクト１０または迂
回ダクトのいずれか一方を開とし他方を閉とする
ことのできる保護弁１２が設けられているととも
に、迂回ダクトの中間部には絞り部１３が設けら
れている。 FIG. 2 shows a basic embodiment, and the description of the main body of the caisson is omitted. The same applies to the embodiments shown in FIGS. 3 to 6 below. In FIG. 2, reference numeral 2 denotes a water retarding chamber provided at the front of the caisson, the upper part of which is sized to form an air communication chamber 9 of a required size between it and the water surface. A turbine duct 10 is provided connected to the air communication chamber 9, and a turbine 6 and a generator 7 that rotate in one direction regardless of the direction of air flow are installed inside the turbine duct 10. The turbine duct 10 before reaching the turbine 6 includes a detour duct 1 that communicates with the outside air.
1 is connected and branched, and the connection part is provided with a protection valve 12 that can open either the turbine duct 10 or the detour duct and close the other by a drive device (not shown). A constriction part 13 is provided in the middle part of the detour duct.
この実施例の装置は、発電時には保護弁１２を
図の破線位置に固定して迂回ダクト１１を閉とし
タービンダクト１０を開の状態とする。それによ
り、遊水室２内の水位の昇降にともなつてタービ
ンダクト１０を出入する空気流により、タービン
６が回転されこれに直結している発電機７が駆動
されることになる。そして、荒天などにより発電
出力が発電機７の定格値を著しく越える危険性が
あるときは、保護弁１２を作動して図の実線の位
置に固定し、タービンダクト１０を閉とし、迂回
ダクト１１を開とする。それによつて遊水室２よ
りの過大なエネルギーを持つ空気流はタービン６
を通過することなく外気に連通することになり、
また、迂回ダクト１１を通過することによつてエ
ネルギーの吸収が行われることになり、消波効果
が生じるとともにケーソンの安定性が向上される
ことになる。この迂回ダクト１１によるエネルギ
ーの吸収効果は、絞り部１３を設けたり或は絞り
部１３を設けなくとも迂回ダクト１１の径をター
ビンダクト１０の径より適宜小さく定めることに
より任意に得られる。 In the device of this embodiment, during power generation, the protection valve 12 is fixed at the position indicated by the broken line in the figure, the detour duct 11 is closed, and the turbine duct 10 is opened. As a result, the air flow flowing in and out of the turbine duct 10 as the water level in the water retarding chamber 2 rises and falls rotates the turbine 6 and drives the generator 7 directly connected thereto. When there is a risk that the power generation output significantly exceeds the rated value of the generator 7 due to rough weather, etc., the protection valve 12 is activated and fixed at the position shown by the solid line in the figure, the turbine duct 10 is closed, and the bypass duct 11 is closed. Let's open. As a result, the air flow with excessive energy from the water retarding chamber 2 is transferred to the turbine 6.
It communicates with the outside air without passing through the
Furthermore, energy is absorbed by passing through the detour duct 11, producing a wave-dissipating effect and improving the stability of the caisson. This energy absorption effect by the detour duct 11 can be obtained arbitrarily by providing the constriction part 13 or without providing the constriction part 13 by appropriately setting the diameter of the detour duct 11 to be smaller than the diameter of the turbine duct 10.
第３図は１枚弁方式による他の実施例を示した
もので、一方向の空気流により回転するタービン
８の前面に固定翼１４を設けるとともに、この固
定翼１４と保護弁１２との間のタービンダクト１
０に整流弁１６を設けた点が第２図の実施例と異
なるところである。この場合には、発電時におい
て遊水室２内の水面の降下中は整流弁１６が開か
れて吸気が行われるようになる。 FIG. 3 shows another embodiment using a single-valve system, in which a fixed blade 14 is provided in front of a turbine 8 that rotates due to a unidirectional air flow, and a space between the fixed blade 14 and a protection valve 12 is shown. turbine duct 1
This embodiment differs from the embodiment shown in FIG. 2 in that a rectifying valve 16 is provided at 0. In this case, during power generation, while the water level in the water retarding chamber 2 is falling, the rectifier valve 16 is opened and air is taken in.
第４図の実施例は２枚弁方式の場合の適用例を
示したもので、２個の遊水室２，２′を連設し、
それらを保護弁１２，１２′を介してタービンダ
クト１０により連通し、その中間部にタービン８
と発電機及び固定翼１４を設置している。そし
て、タービンダクト１０の両端は外気に連通さ
せ、そこに内方に開くようにした整流弁１６と、
外方に開くようにした整流弁１６′を設けるとと
もに、各遊水室２，２′には保護弁１２，１２′に
より開閉される迂回ダクト１１，１１′を設けた
構造となつている。この実施例における保護弁１
２，１２′の動作は前記各実施例の場合と同様で
ある。この実施例の装置では、遊水室２，２′内
の水面の上昇時には、実線矢印のように一方の遊
水室２よりの空気流がタービン８に働き、また水
面の下降時には鎖線矢印のように他方の遊水室
２′内へ吸入される空気流がタービン８に働くこ
とになる。 The embodiment shown in Fig. 4 shows an example of application in the case of a two-valve system, in which two water retarding chambers 2 and 2' are arranged in series,
These are communicated by a turbine duct 10 via protection valves 12, 12', and a turbine 8 is placed in the middle of the duct 10.
A generator and fixed wings 14 are installed. Both ends of the turbine duct 10 are connected to the outside air, and a rectifier valve 16 that opens inward thereto is connected to the outside air.
A rectifying valve 16' that opens outward is provided, and each water retarding chamber 2, 2' is provided with a detour duct 11, 11' that is opened and closed by a protection valve 12, 12'. Protection valve 1 in this embodiment
The operations of 2 and 12' are the same as in each of the embodiments described above. In the device of this embodiment, when the water level in the water retarding chambers 2, 2' rises, the airflow from one of the water retarding chambers 2 acts on the turbine 8 as shown by the solid line arrow, and when the water level falls, the airflow acts on the turbine 8 as shown by the chain line arrow. The air flow sucked into the other water retarding chamber 2' acts on the turbine 8.
第５図の実施例は４枚弁方式の場合の適用例を
示したもので、タービンダクト１０内に、互いに
内方に開く一対の整流弁１６，１６と、互いに外
方に開く一対の整流弁１６′，１６′により囲まれ
た区画室１７を設け、この中にタービン８と発電
機７及び固定翼１４を設置している。そして各一
対の整流弁１６，１６，１６′，１６′のそれぞれ
一方は外気と連通し、他方はタービンダクト１０
と連通した構造となつている。この実施例におけ
る保護弁１２の取付状態及び動作は前記第２図、
第３図の実施例と同様である。この実施例の装置
では、遊水室２内の水面の上昇時には実線矢印の
ような空気流となり、また水面の下降時には鎖線
矢印のような空気流となつて、いずれの場合もタ
ービン８を作動する空気流は一方向となつて働く
ことになる。 The embodiment shown in FIG. 5 shows an example of application in the case of a four-valve system, in which a pair of rectifier valves 16, 16 that open inwardly to each other and a pair of rectifier valves that open to each other outwards are provided in the turbine duct 10. A compartment 17 surrounded by valves 16', 16' is provided, in which a turbine 8, a generator 7, and a fixed blade 14 are installed. One of each pair of rectifying valves 16, 16, 16', 16' communicates with the outside air, and the other communicates with the turbine duct 10.
The structure is connected to the The mounting state and operation of the protection valve 12 in this embodiment are shown in FIG.
This is similar to the embodiment shown in FIG. In the device of this embodiment, when the water level in the water retarding chamber 2 rises, the air flow is as shown by the solid line arrow, and when the water level is falling, the air flow is as shown by the chain line arrow, and in either case, the turbine 8 is operated. The airflow will work in one direction.
以上説明したように本発明の装置は、コンクリ
ートケーソンの前面に没水部を開口して形成した
遊水室の上部に、これと接続して、タービンに連
通するタービンダクトと、タービンを迂回して外
気に連通する迂回ダクトとを設けるとともに、そ
れら両ダクトのうちいずれか一方を開放すると他
方を閉鎖する保護弁を設けた構成としたので、発
電時には保護弁によつてタービンダクトを開とし
迂回ダクトを閉として効率のよい発電が行え、ま
た、荒天時等のように、大きな波浪の来襲により
遊水室内の水位が激しく変動して、過大なエネル
ギーを持つ空気流が発生するようなときには、迂
回ダクトを開くとともにタービンダクトを閉じて
その空気流を迂回ダクトから大気に逃して、過大
な波エネルギーからタービンや発電機を防護する
ことができ、しかも、その過大なエネルギーの空
気流が迂回ダクトを経て大気に抜けることによ
り、そのエネルギーの吸収が行われ、その結果、
消波効果が向上されるとともに、ケーソンの安定
性の確保も図れる等、、多くの優れた効果を発揮
するものである。 As explained above, the device of the present invention has a turbine duct connected to the upper part of the water retarding chamber formed by opening the submerged part in the front of the concrete caisson and communicating with the turbine, and a turbine duct that bypasses the turbine. In addition to providing a detour duct that communicates with the outside air, the structure also includes a protection valve that closes the other when either one of the two ducts is opened.When generating power, the protection valve opens the turbine duct and connects the detour duct. In addition, when the water level in the water retarding chamber fluctuates rapidly due to the arrival of large waves, such as during stormy weather, a bypass duct can be used to generate airflow with excessive energy. The turbine and generator can be protected from excessive wave energy by closing the turbine duct and allowing the airflow to escape through the bypass duct to the atmosphere. By passing into the atmosphere, the energy is absorbed, and as a result,
It exhibits many excellent effects, such as improving the wave-dissipating effect and ensuring the stability of the caisson.
第１図は従来のケーソン型波力発電装置を例示
した側断面図、第２図乃至第６図はそれぞれ本発
明の各実施例を示した側断面図で、第２図は整流
弁を備えない場合に適用した例の側断面図、第３
図は１枚弁方式のものに適用した例の側断面図、
第４図は同じく２枚弁方式においての例、第５図
は同じく４枚弁方式においての例である。
１…コンクリートケーソン、２…遊水室、６…
タービン、７…発電機、８…タービン、９…空気
連通室、１０…タービンダクト、１１…迂回ダク
ト、１２…保護弁、１４…固定翼、１６，１６′
…整流弁。
Fig. 1 is a side sectional view illustrating a conventional caisson type wave power generation device, and Figs. 2 to 6 are side sectional views illustrating each embodiment of the present invention. Side sectional view of an example applied when there is no
The figure is a side sectional view of an example applied to a single valve type.
FIG. 4 shows an example of the two-valve system, and FIG. 5 shows an example of the four-valve system. 1... Concrete caisson, 2... Water retarding room, 6...
Turbine, 7... Generator, 8... Turbine, 9... Air communication chamber, 10... Turbine duct, 11... Detour duct, 12... Protection valve, 14... Fixed blade, 16, 16'
...Rectifier valve.
Claims (1)
して形成した遊水室の上部に、遊水室に接続し
て、タービンに連通するタービンダクトを有する
波力発電装置において、上記タービンダクトの遊
水室の上部に形成される空気連通室と接続する端
部に、絞り部を有する迂回ダクトを外気に連通し
て設けるとともに、タービンダクトと迂回ダクト
との接続部には、それらの両ダクトのうちいずれ
か一方を解放すると他方を閉鎖する保護弁を設け
たことを特徴とする、ケーソン型波力発電装置に
おける防護装置。1. In a wave power generation device having a turbine duct connected to the water retarding chamber and communicating with the turbine at the upper part of the water retarding chamber formed by opening a submerged part on the entire surface of a concrete caisson, the upper part of the water retarding chamber of the turbine duct A detour duct having a constriction part is provided in communication with the outside air at the end connecting to the air communication chamber formed in the turbine duct. A protection device for a caisson-type wave power generation device, characterized in that a protection valve is provided that closes the other when one is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59070131A JPS60215907A (en) | 1984-04-10 | 1984-04-10 | Protector for caisson-type wave power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59070131A JPS60215907A (en) | 1984-04-10 | 1984-04-10 | Protector for caisson-type wave power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60215907A JPS60215907A (en) | 1985-10-29 |
| JPH0461126B2 true JPH0461126B2 (en) | 1992-09-30 |
Family
ID=13422698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59070131A Granted JPS60215907A (en) | 1984-04-10 | 1984-04-10 | Protector for caisson-type wave power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60215907A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222833A (en) * | 1991-05-08 | 1993-06-29 | Northeastern University | Shutter for hydro-pneumatic current flow harnessing system |
| GB2411928B (en) | 2004-03-08 | 2006-09-27 | Orecon Ltd | Wave energy device |
| WO2013034636A1 (en) * | 2011-09-06 | 2013-03-14 | Electric Waves, S.L. | Caisson breakwater module |
| US10161379B2 (en) * | 2013-10-16 | 2018-12-25 | Oceanlinx Ltd. | Coastal protection and wave energy generation system |
| SG11201903397XA (en) * | 2016-10-17 | 2019-05-30 | Wave Swell Energy Ltd | Apparatus and method for extracting energy from a fluid |
| IT202200001349A1 (en) * | 2022-01-27 | 2023-07-27 | Ylenia Composto | Device for generating electricity from wave motion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58588A (en) * | 1981-06-12 | 1983-01-05 | アンスチチュ フランセ ドュ ペトロール | Riser for deep water |
| JPS58190582A (en) * | 1982-04-30 | 1983-11-07 | Kumagai Gumi Ltd | Primary converting device of wave energy |
-
1984
- 1984-04-10 JP JP59070131A patent/JPS60215907A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58588A (en) * | 1981-06-12 | 1983-01-05 | アンスチチュ フランセ ドュ ペトロール | Riser for deep water |
| JPS58190582A (en) * | 1982-04-30 | 1983-11-07 | Kumagai Gumi Ltd | Primary converting device of wave energy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60215907A (en) | 1985-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |