JP4411821B2 - Energy absorber - Google Patents
Energy absorber Download PDFInfo
- Publication number
- JP4411821B2 JP4411821B2 JP2002071270A JP2002071270A JP4411821B2 JP 4411821 B2 JP4411821 B2 JP 4411821B2 JP 2002071270 A JP2002071270 A JP 2002071270A JP 2002071270 A JP2002071270 A JP 2002071270A JP 4411821 B2 JP4411821 B2 JP 4411821B2
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- Prior art keywords
- blade
- pitch angle
- plate
- handle
- parallel
- 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.)
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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
- Y02E10/70—Wind 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
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Hydraulic Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
Description
【技術分野】
【0001】
本発明は、流れの持つエネルギーを吸収する装置に関する。
【背景技術】
【0002】
並進運動するブレードで構成される水車あるいは風車の実用例はまだない。文献1および文献2に示されている装置(以下、原装置と呼ぶ)を実用とするにはブレード駆動索の撓み対策、ブレードの流れに対する姿勢角の設定を確実に行うこと等、装置として機能させるための諸方策が必要である。なお、以下では請求項1の装置を本装置と呼ぶ。
【特許文献1】
実開平5−12700
【特許文献1】
特開平10−061598
【発明の開示】
【0003】
複数平行軸(回転軸)をほぼ鉛直に設置した場合、原装置では多数のブレード2をチェーン等の駆動索4(以下チェーンで代表する)で結ぶが、当該装置が大きくなると、ブレードやチェーン自身の重量のためチェーンが撓む。チェーンの撓みはブレード方向転換回転部分21でチェーンと、チェーンと噛み合うスプロケット(以下、主スプロケット5という)との噛み合わせが悪くなり、チェーンから主スプロケットへの力の伝達効率が低下したり、チェーンがスプロケットから外れたりする。したがって、チェーンと主スプロケットとの位置関係を適切に保つための工夫が必要である。 この撓みは、チェーン側面に、あるいはブレード下側軸20に荷重受ベアリング6を設置し、荷重受板7の上を滑動させることにより、あるいは7を複数のローラーで置き替え、チェーンをこのローラ上を滑動させることにより抑制できる。さらに、ブレード内に発泡材9等の浮力を得られる材料を詰めるなどしてブレード自身に浮力をつける事によりチェーンの撓みを軽減する。実用上は、これらの方法を単独利用ないし併用する。
【0004】
当該装置の性能はブレードピッチ角(ブレードの翼弦と流れ方向との成す角)で決まるため、所要のピッチ角が確実に設定できなければならない。ブレードは流れの方向に押し流されるため、流れのない状態で設定されたピッチ角度とは異なった値になる。チェーンの張力のみでピッチ角を制御する場合、チェーンの張り過ぎ状態が起こりスプロケットへのあるいはスプロケットからチェーンへの動力伝達が困難になる。一般に、チェーンの張力は若干緩めに設定する必要がある。また、多くの流れは変動するため、上記張力も変動しブレードの位置が確定せず、結果としてブレードのピッチ角も確定しない。従って、チェーンあるいはブレード上側軸10、下側軸20を変形抑制板11で支えてチェーン位置を確実に決める必要がある。変形抑制板を利用する場合は、チェーンとブレードの軸10,20とが摺動するため磨耗が起こる。磨耗を極力少なくするために、変形抑制板自身をチェーンの動きと並行して回転できる可動板12を設置する、あるいはブレードの軸にベアリング18を装着しベアリングと変形抑制板との摩擦を少なくする、あるいは、変形抑制板およびブレード軸に永久磁石等による磁気的反発力を付与して非接触とし摩擦そのものをなくす。
【0005】
変形抑制板11がない場合は、チェーンがブレードの発生する力を負担することになり、結果として回転軸13に集中して伝達される。複数ブレードの発生する大きな力は13を介して匡体24に伝達されるため軸受け部分に大きな強度的耐久性が必要になるが、11と24を結合することによりブレードの発生する大きな力を分散して24に伝達できるため、匡体構造への強度要求が緩和できる。
【0006】
ピッチ角制御用ハンドル16とハンドルガイド板17との摺動部の磨耗を極力少なくする必要がある。上記0004の可動板12と同様に、ハンドルガイド板自身がハンドルと同方向に移動・回転する可動板を設置する、あるいは上記0004と同様にハンドル16とハンドルガイド板17とを磁力の反発力を利用して非接触とする、あるいは、ハンドルにベアリング18をつけて摺動時の摩擦力を極力小さくする。ブレードの軸10、20をブレードの圧力中心位置に設置すればピッチ角制御用ハンドル16に加わるモーメントは小さくできる。この場合、摺動による摩擦は小さいのでベアリングを省略することもでき、また、磁力を利用する場合の必要な磁力は小さくてよい。
【0007】
当該装置の性能を最大限に引き出すためには、ピッチ角を最適に設定できる必要がある。そのためには上流側と下流側とのピッチ角を独立に設定できる、あるいは、一般に流れの速さは場所によって異なるため、部分的に異なったピッチ角を設定できればより高い当該装置の性能を引き出すことができる。そのために、ピッチ角制御用ハンドル16の位置を決めるハンドルガイド溝14あるいは二枚の板から成るハンドルガイド板17(以下、ガイド板で代表する)を二分割あるいは二分割以上の多分割にし分割各部を独立に動かすことができるようにする。二分割の場合、ブレードが方向転換する部分でハンドルガイド板17を分割し、弾性板15で互いを連接し、ピッチ角制御用ハンドルが分割されたガイド板間を滑らかに移動できるようにする。弾性板は分割されたガイド板の一方側では固定され、他方側では摺動する。あるいは、弾性板の代わりに一方が他方のガイド板の中を動くようにテレスコピックな配置とする。また、部分的にピッチ角を設定するためにガイド板を必要な部分で分割し、二分割の場合と同様に、互いを弾性板で連接することにより、分割された各ガイド板は独立に動かすことができる。
【0008】
原装置において、ブレードピッチ角制御用のガイド板17を用いればブレードの大きなピッチ角(ブレード翼弦が流れ方向と並行の時、ピッチ角を0度とする)はほぼ確定できるが0度付近では各ブレードの角度設定精度が悪くなる。このことは、ブレードの発生する力を0にしてブレードの運動を停止しようとすることを難しくする。従って、ピッチ角0度付近でのピッチ角確定が確実にできる必要がある。そのために、ピッチハンドルガイド溝14内のピッチ角制御用ハンドル16をチェーン等のハンドル結合索19(以下チェーンで代表)で結合することにより全ブレードのピッチ角0度付近から大きな角度への移行を確実に行うことができる。14がない場合は流水の変動がブレードの発生する力の変動となりその影響がピッチアームに至りピッチ角が変動してしまう。
【0009】
本装置の構体46をテレスコピックに伸縮可能な鞘金具46等を用いた構造(図11)とすることにより、任意幅の流れに対応できる。
【実施例】
【0010】
図1は、原装置に本発明を適用した実施例である。なお、以上では水平設置をもとに記述をしているが、本発明を用いた当該装置は、垂直設置でも利用できる。
【産業上の利用可能性】
【0011】
本装置により、いまだ実用化されていない矩形の風車や水車あるいはポンプが実現できる。従来の水力発電は、ダム等により水力エネルギーの集中を行い、エネルギー密度の高い流れを利用する方式であったが、矩形の水車を用いることによりエネルギー密度の低い流れを集中することなく、そのエネルギーを吸収することができるし、大口径ポンプが可能である。
【図面の簡単な説明】
【0012】
【図1】 本装置説明図
【図2】 ブレード駆動索の鉛直方向の撓みをベアリングを用いて抑える本発明を実施した説明図
【図3】 ブレードに浮力を持たせ駆動索の撓みを緩和する本発明を実施した説明図
【図4】 ブレード等の位置確定のために変形抑制板でブレード軸を流れ方向に拘束する本発明を実施した説明図
【図5】 図2のベアリングの代りに荷重受板が回転する本発明を実施した説明図
【図6】 図4の変形抑制板とブレード軸との摩擦力軽減のためにブレード軸にベアリングを備えた本発明を実施した説明図
【図7】 ブレードの発生する力を、当該装置の匡体に流す本発明を実施した説明図
【図8】 上流側と下流側とで異なったブレードピッチ角を設定できる本発明を実施した説明図
【図9】 ブレードピッチ角設定用ハンドルとハンドルガイド板との摩擦力を軽減するためにハンドルにベアリングを備えた本発明を実施した説明図
【図10】ブレードピッチ角を0°から大きな角度まで確実に設定するためにピッチ角制御用ハンドルをチェーン等結合索で繋ぐ本発明を実施した説明図
【図11】構体を伸縮可能なテレスコピック構造とした本発明を実施した説明図
【符号の説明】
【0013】
1 本該装置
2 ブレード
4 ブレード駆動索
5 主スプロケット
6 荷重受ベアリング
7 荷重受板
8 位置決め用スプロケット
9 発泡材
10 ブレード上側軸
11 変形抑制板
12 可動板
13 主スプロケット軸
14 ピッチ角制御用ハンドルガイド溝
15 分割されたガイド板当を連接する弾性板
16 ピッチ角制御用ハンドル
17 ピッチ角制御用ハンドルガイド板
18 ベアリング
19 ピッチ角制御用ハンドル結合索
20 ブレード下側軸
21 ブレード方向転換回転部
22 ブレード並進部
23 仕切り板
24 当該装置の筐体
32 ブレードの負ピッチ角状態
33 発電機
37 装置躯体
38 結合板
40 順流れ方向
41 逆流れ方向
42 ブレード進行方向
44 チェーン
45 分散スプロケット
46 鞘金具
47 ラック・ピニオン
48 流れ方向検出具
49 ウオームギア
50 モータ【Technical field】
[0001]
The present invention relates to a device that absorbs the energy of a flow.
[Background]
[0002]
There are no practical examples of water turbines or wind turbines composed of blades that translate. In order to put the device shown in Document 1 and Document 2 (hereinafter referred to as the original device) into practical use, it functions as a device such as measures against bending of the blade drive cable and reliable setting of the attitude angle with respect to the flow of the blade. Various measures are necessary to make it happen. Hereinafter, the apparatus of claim 1 is referred to as the present apparatus.
[Patent Document 1]
5-12700
[Patent Document 1]
JP 10-061598
DISCLOSURE OF THE INVENTION
[0003]
When a plurality of parallel shafts (rotating shafts) are installed almost vertically, in the original device, a large number of blades 2 are connected by a drive cable 4 such as a chain (hereinafter represented by a chain). The chain bends due to its weight. As for the bending of the chain, the blade and the sprocket that meshes with the chain (hereinafter referred to as the main sprocket 5) in the blade direction changing rotary portion 21 are not properly meshed, and the transmission efficiency of the force from the chain to the main sprocket is reduced. Comes off the sprocket. Therefore, a device for keeping the positional relationship between the chain and the main sprocket properly is necessary. This bend is caused by installing the load bearing 6 on the side of the chain or on the lower shaft 20 of the blade and sliding it on the load receiving plate 7, or by replacing the 7 with a plurality of rollers. It can suppress by sliding. Furthermore, the bending of the chain is reduced by adding buoyancy to the blade itself by, for example, filling the blade with a material that can obtain buoyancy, such as the foam material 9. In practice, these methods are used alone or in combination.
[0004]
Since the performance of the device is determined by the blade pitch angle (the angle formed between the blade chord and the flow direction), it is necessary to reliably set the required pitch angle. Since the blade is swept away in the direction of flow, the value is different from the pitch angle set in the absence of flow. When the pitch angle is controlled only by the tension of the chain, the chain is excessively tensioned, making it difficult to transmit power to the sprocket or from the sprocket to the chain. Generally, the chain tension needs to be set slightly loose. Also, since many flows fluctuate, the tension also fluctuates and the blade position cannot be determined, and as a result, the blade pitch angle is not fixed. Therefore, it is necessary to reliably determine the chain position by supporting the chain or blade upper shaft 10 and the lower shaft 20 with the deformation suppressing plate 11. When the deformation suppressing plate is used, wear occurs because the chain and the shafts 10 and 20 of the blade slide. In order to reduce wear as much as possible, a movable plate 12 that can rotate the deformation suppressing plate itself in parallel with the movement of the chain is installed, or a bearing 18 is mounted on the blade shaft to reduce friction between the bearing and the deformation suppressing plate. Alternatively, a magnetic repulsive force by a permanent magnet or the like is applied to the deformation suppression plate and the blade shaft so as to make no contact and eliminate friction itself.
[0005]
When the deformation suppressing plate 11 is not provided, the chain bears the force generated by the blade, and as a result, it is transmitted concentrated on the rotating shaft 13. Since the large force generated by multiple blades is transmitted to the housing 24 via 13, a high strength durability is required for the bearing portion. However, by combining 11 and 24, the large force generated by the blade is dispersed. Therefore, the strength requirement for the frame structure can be relaxed.
[0006]
It is necessary to reduce the wear of the sliding portion between the pitch angle control handle 16 and the handle guide plate 17 as much as possible. Similar to the movable plate 12 of the above-mentioned 0004, the handle guide plate itself is installed with a movable plate that moves and rotates in the same direction as the handle, or the handle 16 and the handle guide plate 17 are repelled by a magnetic force as in the above-mentioned 0004. Use it for non-contact, or attach a bearing 18 to the handle to minimize the frictional force when sliding. If the blade shafts 10 and 20 are installed at the pressure center position of the blade, the moment applied to the pitch angle control handle 16 can be reduced. In this case, since the friction due to sliding is small, the bearing can be omitted, and the magnetic force required when using the magnetic force may be small.
[0007]
In order to maximize the performance of the device, it is necessary to be able to set the pitch angle optimally. For that purpose, the pitch angle of the upstream side and the downstream side can be set independently, or generally the flow speed varies depending on the location, so if a different pitch angle can be set partially, higher performance of the device can be derived. Can do. For this purpose, the handle guide groove 14 for determining the position of the pitch angle control handle 16 or the handle guide plate 17 comprising two plates (hereinafter referred to as a guide plate) is divided into two or more than two divided parts. Can be moved independently. In the case of two divisions, the handle guide plate 17 is divided at the portion where the blade changes direction, and the elastic plate 15 is connected to each other so that the pitch angle control handle can be smoothly moved between the divided guide plates. The elastic plate is fixed on one side of the divided guide plate and slides on the other side. Alternatively, a telescopic arrangement is adopted so that one moves in the other guide plate instead of the elastic plate. Moreover, in order to set the pitch angle partially, the guide plate is divided at a necessary portion, and each divided guide plate is moved independently by connecting each other with an elastic plate as in the case of two divisions. be able to.
[0008]
In the original apparatus, if the guide plate 17 for controlling the blade pitch angle is used, the large pitch angle of the blade (when the blade chord is parallel to the flow direction, the pitch angle is set to 0 degree) can be almost determined. The angle setting accuracy of each blade is deteriorated. This makes it difficult to stop the movement of the blade by reducing the force generated by the blade to zero. Therefore, it is necessary to reliably determine the pitch angle near the pitch angle of 0 degrees. For this purpose, the pitch angle control handle 16 in the pitch handle guide groove 14 is coupled with a handle coupling cord 19 such as a chain (hereinafter represented by a chain) to shift the pitch angle of all blades from around 0 degrees to a larger angle. It can be done reliably. When there is no 14, the fluctuation of the flowing water becomes the fluctuation of the force generated by the blade, and the influence reaches the pitch arm and the pitch angle changes.
[0009]
By adopting a structure (FIG. 11) using a metal shell 46 that can telescopically expand and contract as the structure 46 of the present apparatus, it is possible to cope with a flow having an arbitrary width.
【Example】
[0010]
FIG. 1 shows an embodiment in which the present invention is applied to an original apparatus. Although the above description is based on horizontal installation, the apparatus using the present invention can also be used in vertical installation.
[Industrial applicability]
[0011]
With this device, a rectangular windmill, water turbine or pump that has not yet been put into practical use can be realized. Conventional hydroelectric power generation is a method of concentrating hydro energy by using a dam and utilizing a flow with high energy density, but by using a rectangular water wheel, the energy of that energy is concentrated without concentrating the flow with low energy density. Can be absorbed, and a large-diameter pump is possible.
[Brief description of the drawings]
[0012]
FIG. 1 is an explanatory view of the apparatus. FIG. 2 is an explanatory view of carrying out the present invention for suppressing vertical deflection of a blade driving rope by using a bearing. FIG. 3 provides the blade with buoyancy to alleviate the bending of the driving rope. FIG. 4 is an explanatory diagram for implementing the present invention. FIG. 4 is an explanatory diagram for implementing the present invention in which the blade shaft is constrained in the flow direction by a deformation suppressing plate to determine the position of the blade. FIG. 5 is a load instead of the bearing of FIG. FIG. 6 illustrates the present invention in which the receiving plate rotates. FIG. 6 illustrates the present invention in which the blade shaft is provided with a bearing for reducing the frictional force between the deformation suppressing plate and the blade shaft in FIG. [Fig. 8] An explanatory diagram of the present invention in which the force generated by the blade flows through the housing of the apparatus. [Fig. 8] An explanatory diagram of the present invention in which different blade pitch angles can be set on the upstream side and the downstream side. [Fig. 9] Handle for setting the blade pitch angle FIG. 10 is an explanatory view of carrying out the present invention in which a handle is provided with a bearing to reduce the frictional force with the handle guide plate. FIG. 10 is a pitch angle control handle for setting the blade pitch angle from 0 ° to a large angle. FIG. 11 is a diagram illustrating the telescopic structure in which the structure can be expanded and contracted.
[0013]
DESCRIPTION OF SYMBOLS 1 This apparatus 2 Blade 4 Blade drive line 5 Main sprocket 6 Load receiving bearing 7 Load receiving plate 8 Positioning sprocket 9 Foam material 10 Blade upper shaft 11 Deformation suppressing plate 12 Movable plate 13 Main sprocket shaft 14 Pitch angle control handle guide Groove 15 Elastic plate 16 connecting the divided guide plate abutment Pitch angle control handle 17 Pitch angle control handle guide plate 18 Bearing 19 Pitch angle control handle connecting cord 20 Blade lower shaft 21 Blade direction changing rotating portion 22 Blade Translation unit 23 Partition plate 24 Case of the device 32 Blade negative pitch angle state 33 Generator 37 Device housing 38 Connecting plate 40 Forward flow direction 41 Reverse flow direction 42 Blade traveling direction 44 Chain 45 Dispersion sprocket 46 Sheath metal fitting 47 Rack Pinion 48 Flow direction detector 49 Wo Worm gear 50 motor
Claims (1)
(1) 平行軸が鉛直に近い状態に配置された場合、ブレードおよびブレード駆動索の重量による駆動索の撓みを、駆動索と平行な面上を一定距離を保って滑動させる、あるいはブレードの浮力を利用して撓みを抑止する。
(2) 駆動索の流れ方向への変形を、ベアリング等滑動車をブレード軸に着け変形抑制板に沿って滑動させるあるいは回転する変形抑制板により駆動索の変形を抑制する、あるいは駆動索と変形抑制板とを電磁力で反発させ非接触とする。
(3)上記変形抑制板と複数の平行軸を支える匡体とを結合しブレードの発生する力を分散して匡体に伝達する。
(4) ブレードのピッチ角を制御するハンドルを、回転するガイド板で受ける、あるいはハンドルとガイド板とを電磁力で反発させ非接触とする。
(5) ブレードピッチ角を制御するハンドルのガイド溝あるいはガイド板を二分割し上流側と下流側とで独立に制御可能な、あるいは更に分割数を増やして局所的にブレードピッチ角を可変とした場合において、摺動可能な弾性板で分割ガイド溝を接合する。
(6) ブレードピッチ角が0°付近から大きな角度に確実に移行できるようにハンドルガイド溝内のピッチ角制御ハンドルを索で連結する。
(7) 複数の平行軸を支える匡体がテレスコピック構造である。A plurality of straight rectangular wings (blades) arranged in parallel to a plurality of parallel shafts and connected by a driving cable translate between the parallel shafts, rotate around the shaft and change direction, and the blades are subjected to water flow and wind. The blades move in an endless track around all parallel axes by the force generated by the blades by having the flow direction and angle of the medium, or move the blades in the medium by applying power to one of the parallel axes. An apparatus for generating a flow in a medium, comprising the following means:
(1) When the parallel shaft is arranged in a nearly vertical state, the deflection of the driving cable due to the weight of the blade and the blade driving cable is caused to slide on a plane parallel to the driving cable while maintaining a certain distance, or the buoyancy of the blade To suppress bending.
(2) Deformation of the drive cable in the flow direction is controlled by sliding a rolling wheel such as a bearing on the blade shaft along the deformation suppression plate or by rotating the deformation suppression plate, or by suppressing the deformation of the drive cable. The suppression plate is repelled by electromagnetic force to make it non-contact.
(3) The deformation suppressing plate and the casing supporting the plurality of parallel shafts are coupled, and the force generated by the blade is dispersed and transmitted to the casing.
(4) The handle for controlling the pitch angle of the blade is received by a rotating guide plate, or the handle and the guide plate are repelled by electromagnetic force so as not to contact each other.
(5) The guide groove or guide plate of the handle that controls the blade pitch angle can be divided into two parts, which can be controlled independently on the upstream side and downstream side, or the number of divisions can be increased to make the blade pitch angle locally variable. In some cases, the divided guide grooves are joined by a slidable elastic plate.
(6) The pitch angle control handle in the handle guide groove is connected with a rope so that the blade pitch angle can be surely shifted from near 0 ° to a large angle.
(7) The casing that supports a plurality of parallel axes has a telescopic structure.
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CN101943114A (en) * | 2010-09-30 | 2011-01-12 | 喻体刚 | Multilayer wind power generation sail |
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JP2006249999A (en) * | 2005-03-09 | 2006-09-21 | Takashi Uchida | Translational vane machine |
WO2007065717A1 (en) * | 2005-12-08 | 2007-06-14 | Theo Devaney | Tidal stream energy conversion system |
JP2009068439A (en) * | 2007-09-14 | 2009-04-02 | Csc Labo:Kk | Dustproof water wheel |
NO329353B1 (en) * | 2009-07-31 | 2010-10-04 | Aqua Energy Solutions As | Vannstromkraftverk |
JP4917687B1 (en) * | 2011-07-13 | 2012-04-18 | 秀雄 皆木 | Wind turbine device for wind power generator |
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JP2022023312A (en) * | 2020-07-27 | 2022-02-08 | 内田 清子 | Device |
CN112249254B (en) * | 2020-10-22 | 2022-05-27 | 青岛科技大学 | Device for reducing free liquid level and recycling mechanical energy for liquid cargo tank |
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CN116428107B (en) * | 2023-04-19 | 2023-10-20 | 上海玻璃钢研究院东台有限公司 | Wind driven generator blade |
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CN101943114A (en) * | 2010-09-30 | 2011-01-12 | 喻体刚 | Multilayer wind power generation sail |
CN101943114B (en) * | 2010-09-30 | 2012-05-23 | 喻体刚 | Multilayer wind power generation sail |
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