JP4902800B1 - Ship - Google Patents

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JP4902800B1
JP4902800B1 JP2011133868A JP2011133868A JP4902800B1 JP 4902800 B1 JP4902800 B1 JP 4902800B1 JP 2011133868 A JP2011133868 A JP 2011133868A JP 2011133868 A JP2011133868 A JP 2011133868A JP 4902800 B1 JP4902800 B1 JP 4902800B1
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surge tank
water
rear end
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stern
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長山明
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    • 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
    • Y02E10/20—Hydro energy
    • 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

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Abstract

【課題】波力を水の位置エネルギーに変換する発電装置を備える船舶を提供すること。
【解決手段】船尾部船体後端１の常用軽荷吃水線Ｃ下部に開口部８を設け、該開口部から上方に伸びる管路７途上に水車４を介在させ、当該水車と連結あるいは一体化された発電機３を備えるものである。さらに、船尾部船体後端近傍にサージタンク２を設け、該サージタンクと管路を連結し、上甲板１４及び船尾部船体後端の一方あるいは双方に設けた取水口５と該サージタンクを連結し、サージタンクの管路側流出口及び船尾部船体後端に設けた開口部にそれぞれ電磁不還弁６，９を備えるものである。
【選択図】図１A ship provided with a power generation device that converts wave power into potential energy of water is provided.
SOLUTION: An opening 8 is provided in a lower portion of a regular light load dredging line C at a rear end 1 of a stern portion, and a water turbine 4 is interposed in a pipeline 7 extending upward from the opening to be connected to or integrated with the water turbine. The generator 3 is provided. Further, a surge tank 2 is provided in the vicinity of the rear end of the stern part hull, the surge tank is connected to the conduit, and the intake tank 5 provided on one or both of the upper deck 14 and the rear end of the stern part hull is connected to the surge tank. In addition, electromagnetic nonreturn valves 6 and 9 are respectively provided in the openings provided in the conduit side outlet of the surge tank and the rear end of the stern part hull.
[Selection] Figure 1

Description

近年、技術開発により低落差、小流量でも発電可能な水車・発電機が実用化され、小水力発電の効率化、低コスト化が進み、従来は難しかった地点でも経済性のある発電が可能となっている。具体的には有効落差３メートル、使用水量０．２ｍ３／Ｓ程度であれば経済性を満たす発電が可能となっている。 In recent years, water turbines and generators that can generate electricity with low head and small flow rate have been put into practical use due to technological development, and the efficiency and cost reduction of small hydroelectric power generation has progressed, making it possible to generate power economically even at difficult points It has become. Specifically, if the effective head is 3 meters and the amount of water used is about 0.2 m 3 / S, it is possible to generate power that satisfies the economics.

また、水力発電はエネルギー変換効率が高いことも特徴の一つで、火力発電（熱効率は４０〜５０％程度）に比べても高い効率が得られる。出力の大きさにもよるが、口径５００ｍｍ程度の小水力発電で７０％前後の水車・発電効率が得られる。   Hydroelectric power generation is also characterized by high energy conversion efficiency, and high efficiency can be obtained compared to thermal power generation (thermal efficiency is about 40 to 50%). Depending on the size of the output, a small hydroelectric power generation with a diameter of about 500 mm can provide a turbine / power generation efficiency of around 70%.

本発明は船舶に関するものであり、より詳しくは波力を利用した小水力発電を行い、当該電気エネルギーを、大容量蓄電池を経て船内電源の一部として利用する船舶に関するものである。   The present invention relates to a ship, and more particularly to a ship that performs small hydropower generation using wave power and uses the electric energy as a part of an onboard power source via a large-capacity storage battery.

波力発電とは、水面の表面波のエネルギーを利用する発電方法をいう。   Wave power generation refers to a power generation method that uses the energy of surface waves on the water surface.

ここに、表面波のエネルギーは面積あたりのエネルギーとして、太陽光の２０〜３０倍、風力の５〜１０倍と利用価値が高いものである。しかし、海岸線の長い地形でないと設置しづらいこと、及び設置場所の自然環境、気象による変動が大きいことなどの問題点がある。   Here, the energy of the surface wave is 20 to 30 times that of sunlight and 5 to 10 times that of wind power as energy per area, and has high utility value. However, there are problems such as it is difficult to install unless the terrain has a long coastline, and the natural environment of the installation site and the fluctuation due to weather are large.

かかる特徴を有する波力発電の方式は、大きく分けて１次変換によって次の３つに分類される。   Wave power generation systems having such characteristics are roughly classified into the following three types by primary conversion.

１、空気エネルギーに変換する方法を採用するもの。   1. A method that converts air energy.

２、機械的なエネルギーに変換する方法を採用するもの。   2. A method of converting to mechanical energy.

３、水の位置エネルギーまたは水流エネルギーに変換する方法を採用するもの。   3. One that adopts a method of converting to water potential energy or water flow energy.

空気エネルギーに変換するものは、一般的に、空気室内の水面の上下動により、空気室上部に取り付けられた空気タービンを回し、エネルギーを取り出すという方法が取られる。この方法には、密度が小さく、かつ圧縮性を有する空気のエネルギーに変換して発
電するものであるために、エネルギーの伝達ロスが大きく、よって大きな発電量を得るこ
とが難しいという難点がある。 As a method for converting to air energy, generally, a method is employed in which energy is extracted by turning an air turbine attached to the upper portion of the air chamber by vertical movement of the water surface in the air chamber. This method has a drawback in that since it generates electricity by converting it into air energy having a low density and compressibility, it has a large energy transmission loss and thus it is difficult to obtain a large amount of power generation.

かかる方法を採用する発電装置を備えたものとして、特開２０１０−１６８９８９号公報記載の船舶がある。同公報記載の船舶は、圧縮空気生成部と、該圧縮空気生成部と通気可能に接続された圧縮空気格納部と、該圧縮空気格納部と通気可能に接続された圧縮空気タービン部と、該圧縮空気タービン部と接続された発電機とを有するものである。   As a thing provided with the electric power generating apparatus which employ | adopts this method, there exists a ship of Unexamined-Japanese-Patent No. 2010-168989. The ship described in the publication includes a compressed air generation unit, a compressed air storage unit connected to the compressed air generation unit so as to allow ventilation, a compressed air turbine unit connected to the compressed air storage unit so as to allow ventilation, It has a generator connected with a compressed air turbine part.

機械的エネルギーに変換する方法としては、波エネルギーを受圧板の振り子運動としてとらえ、油圧に変換し発電機を駆動させるといった方法が取られる。   As a method of converting to mechanical energy, a method of taking wave energy as a pendulum motion of a pressure receiving plate, converting it to hydraulic pressure, and driving a generator is taken.

水の位置エネルギーまたは水流エネルギーに変換する方法としては、波によって打ち寄せられる水塊を構造物の斜面に沿って遡上、そして越波させ、背後の池に貯留する。そして貯留池の水面と海水面との水位の差を利用して低落差用水車タービンを回すといった方法が取られる。   As a method for converting into water potential energy or water current energy, a water mass struck by waves is run up along the slope of the structure, overtopped, and stored in a pond behind. And the method of turning the low-head water turbine using the difference in the water level between the water level of the reservoir and the sea level is taken.

かかる水流エネルギーに変換する波力発電装置を備えた船舶が、特表平１１−５０６１８０号公報に記載されている。同公報記載の発明は、船舶にヘリカルタービンを装備し、該タービンを水面下に設置し発電するというものである。ただ、かかる方法を採用すると航行時の抵抗が増大するという問題点が生じてしまう。   A ship equipped with a wave power generation device that converts this water current energy is described in JP-T-11-506180. The invention described in this publication is that a ship is equipped with a helical turbine, and the turbine is installed under the surface of the water to generate electric power. However, when such a method is adopted, there arises a problem that resistance during navigation increases.

特開２０１０−１６８９８９号公報JP 2010-168989 A 特表平１１−５０６１８０号公報Japanese National Patent Publication No. 11-506180

現在船舶の置かれている社会的な環境は国際的な規範として省エネルギー、ＣＯ２ガス発生の制約等避けて通れない制約となりつつあり、特に国際航路については技術的な可決が望まれる。 The social environment in which ships are currently placed is becoming an unavoidable restriction such as energy saving and CO 2 gas generation restrictions as international norms, and technical approval is especially required for international routes.

更には、船舶においてバウスラスタを稼動して最大電力を必要とする時間は全体の運航
時間の僅か数％であると共に、通常航行や荷役時に必要な電力量は最大能力の約４割〜７割であるため、船舶の全体の運航において搭載燃料及び発電手段の発電容量の多くが無駄になり、エネルギー効率が悪いという問題があった。 Furthermore, the time required to operate the bow thruster on a ship and require maximum power is only a few percent of the total operation time, and the amount of power required for normal navigation and cargo handling is approximately 40% to 70% of the maximum capacity. Therefore, there has been a problem that in the operation of the entire ship, much of the installed fuel and the power generation capacity of the power generation means are wasted and the energy efficiency is poor.

一方、陸上においては微小電力においてすらこれら制約における節電が要請されようとしており、将来部門別ＣＯ２削減が求められた場合、これに対応するものとして少落差水源が近年の技術的発展により実用化が進みつつある中で、その技術的展開として日常容易に海面上で得られる風力３以上波高ビューフォート・スケール３以上の海面下における遠洋海域において特に有利な大容量海水の利用が考えられる。 On the other hand, even on micro-power, there is an increasing demand for power saving under these restrictions, and when future CO 2 reduction by sector is required, a small drop water source has been put into practical use as a result of recent technological development. As the technology progresses, the use of large-capacity seawater, which is particularly advantageous in the offshore sea area under the sea surface of the wind force 3 or higher and the wave height Beaufort scale 3 or higher, which can be easily obtained on the sea surface, can be considered as a technical development.

本発明はその発想のもとに技術的解決を試みるものであり、波力を水の位置エネルギーに変換する発電装置を備える船舶を提供することを目的とするものである。   The present invention attempts to provide a technical solution based on the idea, and an object of the present invention is to provide a ship including a power generation device that converts wave power into potential energy of water.

上記の目的を達成する本発明の構成は次の通りである。   The configuration of the present invention that achieves the above object is as follows.

（１） 請求項１に記載の船舶は、船舶の動揺によって生じる水流を利用し発電する波力発電装置を備えるものである。   (1) The ship according to claim 1 includes a wave power generation device that generates electric power using a water flow generated by the vibration of the ship.

（２） 請求項２に記載の船舶は、船尾部船体後端の常用軽荷吃水線下部に開口部を設け、該開口部から上方に伸びる管路途上に水車を介在させ、当該水車と連結あるいは一体化された発電機を備えるものである。   (2) The ship according to claim 2 is provided with an opening in the lower part of the regular light load dredging line at the rear end of the stern part hull, and a water turbine is interposed on the pipeline extending upward from the opening to be connected to the water wheel. Alternatively, an integrated generator is provided.

（３）請求項３に記載の船舶は、請求項２記載の船舶において、船尾部船体後端近傍にサージタンクを設け、該サージタンクと管路を連結し、上甲板及び船尾部船体後端の一方あるいは双方に設けた取水口と該サージタンクを連結し、サージタンクの管路側流出口及び船尾部船体後端に設けた開口部にそれぞれ電磁不還弁を備えるものである。   (3) The ship according to claim 3 is the ship according to claim 2, wherein a surge tank is provided in the vicinity of the rear end of the stern part hull, the surge tank is connected to the conduit, and the upper deck and the rear part of the stern part hull are connected. The surge tank is connected to the intake port provided in one or both of these, and an electromagnetic nonreturn valve is provided in each of the conduit side outlet of the surge tank and the opening provided at the rear end of the stern part hull.

本発明は、波浪によって生じる水位差及び動揺により水流を生ぜしめ、当該水流により水車を回転させ、もって発電を行うものである。 In the present invention, a water flow is generated by a water level difference and fluctuation caused by waves, and a water turbine is rotated by the water flow to generate electric power.

より具体的には、航走時において、船尾端部が波頂から波底に下降するとき生じる縦方向の動揺により、管路内の水位は開口部側から管路内を上昇し、逆に船尾端部が波底から波頂に上昇するとき、管路内の水位は下降することになる。つまりは管路内を上昇・下降する往復水流が生じるので、かかる水流を利用して水車を回転させることが可能となるのである。   More specifically, when sailing, the water level in the pipeline rises in the pipeline from the opening side due to the vertical fluctuation that occurs when the stern end descends from the wave peak to the wave bottom, and conversely When the stern end rises from the wave bottom to the wave top, the water level in the pipeline will drop. In other words, since a reciprocating water flow that rises and falls in the pipeline is generated, the water turbine can be rotated using this water flow.

また、波高が小さい場合には、上記水位の変動が小さくなり、場合によっては水車が回転不能になる場合もありうる。かかる不都合を避けるために本発明ではサージタンクを備えるものである。   In addition, when the wave height is small, the fluctuation of the water level is small, and in some cases, the water turbine may not be able to rotate. In order to avoid such inconvenience, the present invention includes a surge tank.

すなわち、水位の変動が小さい際には、サージタンクの管路側流出口に設けた電磁不還弁を開放し、サージタンク内の水を管路内に放出すると共に、開口部に設けた電磁不還弁を作動させ開口部からの水の流出を防止する。これにより、管路内の水量を増加させ水車の回転不能を阻止するものである。   That is, when the fluctuation of the water level is small, the electromagnetic feedback valve provided at the outlet side of the surge tank pipe is opened, the water in the surge tank is discharged into the pipe, and the electromagnetic resistance provided in the opening is released. Operate the return valve to prevent water from flowing out of the opening. As a result, the amount of water in the pipeline is increased to prevent the water turbine from rotating.

かようにして本発明によれば、波高３〜４メートル程度の状態にあることが通常である外洋に就航している大型船に適用することが有用な発電装置を提供可能となるものである。   Thus, according to the present invention, it is possible to provide a power generator useful for application to a large ship in service in the open ocean, which is usually in a state where the wave height is about 3 to 4 meters. .

そして、本発明の特徴として荒天時であればより効率的に発電が可能という点も挙げられる。一般に船舶の省エネルギーは自然エネルギーの利用を主体とし、太陽光を始め風力等のエネルギー利用等が実用化されつつあるが、いずれも天候に効率が左右される弱点から逃れることは不可能である。これに対し本発明では上述のようにそれが逆転され、荒天下での運用は発電効率の向上となるのである。   A feature of the present invention is that power can be generated more efficiently during stormy weather. In general, the energy conservation of ships mainly uses natural energy, and the utilization of energy such as wind power including sunlight is being put into practical use. However, it is impossible to escape from the weak point where the efficiency depends on the weather. On the other hand, in the present invention, it is reversed as described above, and operation under stormy weather improves power generation efficiency.

実施例船舶の中心線における船尾端部付近側面図。The stern end vicinity side view in the centerline of an Example ship. 船尾端部の部分甲板の平面図。The top view of the partial deck of a stern end part.

以下の実施例は、一般的船舶が遭遇する波高３メートル近傍以上の場合の航行において、波頂と波底の位置エネルギーの差を運動エネルギーとして発電水車を駆動する場面を想定したものである。   The following embodiment assumes a situation in which a power generation turbine is driven using the difference in potential energy between the wave peak and the wave bottom as kinetic energy in navigation when the wave height is near 3 meters or more encountered by a general ship.

図中１は船尾部船体後端、２は船尾部船体後端１の上部甲板下面に配置したサージタンク、３は船尾部船体後端１下方に配置した発電機、４は発電機に直結あるいは一体化した水車である。５は取水口で、海水をサージタンク２に取り入れるためのものである。管路７内海水は開口部８より流入・取水されるものである。   In the figure, 1 is the rear end of the stern part hull, 2 is a surge tank placed on the lower surface of the upper deck of the stern part hull rear end 1, 3 is a generator placed below the stern part hull rear end 1 and 4 is directly connected to the generator or It is an integrated water wheel. 5 is a water intake for taking seawater into the surge tank 2. Seawater in the pipeline 7 flows in and is taken from the opening 8.

ここに開口部８は常に海水中に位置させるため常用軽荷吃水線よりも下部に設けてある。この開口部８には電磁不還弁９が設けられており、不還弁作動時には管路７内に滞留する海水の流出が阻止されるものである。   Here, since the opening 8 is always located in the seawater, the opening 8 is provided below the service light load waterline. The opening 8 is provided with an electromagnetic nonreturn valve 9 that prevents outflow of seawater staying in the pipe 7 when the nonreturn valve is operated.

船尾部船体後端１の常用満載吃水線Ａ付近には取水口５が設けられている。また、図２に示されるように、上甲板１４の両舷側直下にある排水路１３を通じて上甲板上に打ち上げられた海水は、取水口５に集められサージタンク２内に流下するものである。   A water intake 5 is provided in the vicinity of the regular full flooding line A at the rear end 1 of the stern part hull. Further, as shown in FIG. 2, seawater launched on the upper deck through the drainage channel 13 immediately below the both sides of the upper deck 14 is collected in the water intake 5 and flows down into the surge tank 2.

サージタンク２は動揺を抑えるべく船体中心線Ｂ上に設けることが好ましい。更には、タンク内の海水の遊動を抑えるため、表面積を小さくすべく縦長に形成することが好ましい。   The surge tank 2 is preferably provided on the hull center line B in order to suppress shaking. Furthermore, in order to suppress the seawater floating in the tank, it is preferable to form it vertically to reduce the surface area.

更には、サージタンク２内には制水板１０が複数設けられている。サージタンク２内の海水の遊動を抑制し、船体の動揺を抑えるためである。   Furthermore, a plurality of water control plates 10 are provided in the surge tank 2. This is to suppress the seawater in the surge tank 2 and to suppress the hull from shaking.

サージタンク２の管路７側流出口には電磁不還弁１２が設けられている。この電磁不還弁１２作動時にはサージタンク２内の海水の管路７内への流入が阻止される。   An electromagnetic non-return valve 12 is provided at the outlet 7 side outlet of the surge tank 2. When the electromagnetic feedback valve 12 is operated, the seawater in the surge tank 2 is prevented from flowing into the conduit 7.

また、船尾部船体後端１側に設けれた取水口５には、不還弁６が介在させてある。サージタンク２内の海水が取水口５より流出することを防ぐためである。   Further, a nonreturn valve 6 is interposed in the water intake 5 provided on the stern part hull rear end 1 side. This is to prevent seawater in the surge tank 2 from flowing out of the water intake 5.

本発明においては、発電された電力は、整流部を介して蓄電池１１に蓄電される。本発明では水流が往復動を行うため、整流部により効率化が行われる。   In the present invention, the generated electric power is stored in the storage battery 11 via the rectification unit. In this invention, since a water flow reciprocates, efficiency improvement is performed by a rectification | straightening part.

水車４は低水位において一般化されている汎用水車を舶用化し使用する。小水力発電に適用可能な水車形式としてクロスフロー水車、チューブラ水車、ポンプ逆転水車などが使用可能であり、２５０ＫＷ以下のマイクロ水力発電用として利用される水車と発電機を一体化した水中式発電機一体型水車や横軸プロペラ水車なども利用可能である。一般に、マイクロ水車として、横軸プロペラ水車の設置スペースとしては出力の目安として３〜１００ＫＷ程度であれば流水方向長さ(ｍ)×幅(ｍ)が４．０×２．５程度で済み船舶内にも十分設置可能なものである。   The water turbine 4 uses a general-purpose water turbine that is generalized at a low water level. Cross-flow turbines, tubular turbines, pump reversing turbines, etc. can be used as turbine types applicable to small hydropower generation, and submersible generators that integrate turbines and generators used for micro hydropower generation of 250 KW or less Integrated water turbines and horizontal axis propeller turbines can also be used. In general, as a micro water turbine, the horizontal axis propeller turbine installation space is about 3 to 100 KW, and the length (m) x width (m) in the direction of water flow is about 4.0 x 2.5. It can also be installed inside.

勿論これらは一例であり、適宜な水車を利用可能なものである。   Of course, these are only examples, and an appropriate water wheel can be used.

１・・船尾部船体後端
２・・取水タンク
３・・発電機
４・・水車
５・・取水口
６・・不還弁
７・・管路
８・・開口部
９・・電磁不還弁
１０・・制水板
１１・・蓄電池
１２・・電磁不還弁
１３・・排水路
１４・・上甲板 1. ・ Stern rear hull 2 ・ Intake tank 3 ・ Generator 4 ・ Water wheel 5 ・ Inlet 6 ・ Non-return valve 7 ・ Pipe 8 ・ ・ Opening 9 ・ ・ Electromagnetic non-return valve 10. Water control plate 11. Storage battery 12. Electromagnetic non-return valve 13. Drain 14 ... Upper deck

Claims (1)

船舶の動揺によって生じる水流を利用し発電する波力発電装置を備えた船舶において、
船尾部船体後端（１）の常用軽荷吃水線下部に開口部（８）を設け、該開口部（８）から上方に伸びる管路（７）途上に水車（４）を介在させ、水車（４）と連結された発電機（３）を備えたこと、
船尾部船体後端（１）近傍にサージタンク（２）を設け、該サージタンク（２）と管路（７）を連結し、上甲板（１４）及び船尾部船体後端（１）の一方あるいは双方に設けた取水口（５）と該サージタンク（２）を連結し、サージタンク（２）の管路（７）側流出口及び開口部（８）にそれぞれ電磁不還弁（１２）・（９）を設けたこと、
を特徴とする船舶。 In a ship equipped with a wave power generator that generates electricity using the water flow generated by the ship's shaking,
An opening (8) is provided at the lower part of the regular light load inundation line at the rear end (1) of the stern part, and a water turbine (4) is interposed in the pipeline (7) extending upward from the opening (8). Having a generator (3) connected to (4),
A surge tank (2) is provided in the vicinity of the stern rear hull (1), the surge tank (2) and the pipe (7) are connected, and one of the upper deck (14) and the stern hull rear end (1) Alternatively, the intake port (5) provided on both sides and the surge tank (2) are connected, and the electromagnetic nonreturn valve (12) is connected to the conduit (7) side outlet and the opening (8) of the surge tank (2), respectively.・ Established (9)
A ship characterized by
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Publication number Priority date Publication date Assignee Title
JP5563701B1 (en) * 2013-02-28 2014-07-30 東京日進ジャバラ株式会社 Power generator and ship

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5783670A (en) * 1980-11-14 1982-05-25 Mitsubishi Heavy Ind Ltd Biaxial type water mill and wind mill
JPS5996372U (en) * 1982-12-20 1984-06-29 三井造船株式会社 wave power boat
JPS6018274U (en) * 1983-07-18 1985-02-07 三菱重工業株式会社 Marine wave power generation device
JPS6188069U (en) * 1984-11-15 1986-06-09
JPS62118066A (en) * 1985-11-16 1987-05-29 Osamu Hachiro Wave power generation: power generating method wherein inclination on wave surface, air force, and acceleration force produce rotational movement in same direction
JPH1077947A (en) * 1996-09-05 1998-03-24 Toshihiko Yamashita Power generating method and device therefor
JP2010168989A (en) * 2009-01-22 2010-08-05 Jungman Yoon Wave generator and wave-operated ship

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5783670A (en) * 1980-11-14 1982-05-25 Mitsubishi Heavy Ind Ltd Biaxial type water mill and wind mill
JPS5996372U (en) * 1982-12-20 1984-06-29 三井造船株式会社 wave power boat
JPS6018274U (en) * 1983-07-18 1985-02-07 三菱重工業株式会社 Marine wave power generation device
JPS6188069U (en) * 1984-11-15 1986-06-09
JPS62118066A (en) * 1985-11-16 1987-05-29 Osamu Hachiro Wave power generation: power generating method wherein inclination on wave surface, air force, and acceleration force produce rotational movement in same direction
JPH1077947A (en) * 1996-09-05 1998-03-24 Toshihiko Yamashita Power generating method and device therefor
JP2010168989A (en) * 2009-01-22 2010-08-05 Jungman Yoon Wave generator and wave-operated ship

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