CN112081713A - Vertical axis Newtonian fluid kinetic energy absorption device - Google Patents

Vertical axis Newtonian fluid kinetic energy absorption device Download PDF

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Publication number
CN112081713A
CN112081713A CN202010999746.3A CN202010999746A CN112081713A CN 112081713 A CN112081713 A CN 112081713A CN 202010999746 A CN202010999746 A CN 202010999746A CN 112081713 A CN112081713 A CN 112081713A
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CN
China
Prior art keywords
paddle
rotating shaft
kinetic energy
vertical axis
newtonian fluid
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Pending
Application number
CN202010999746.3A
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Chinese (zh)
Inventor
蔡东亮
蔡欣宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinan Quangus Energy Technology Co ltd
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Jinan Quangus Energy Technology Co ltd
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Filing date
Publication date
Application filed by Jinan Quangus Energy Technology Co ltd filed Critical Jinan Quangus Energy Technology Co ltd
Publication of CN112081713A publication Critical patent/CN112081713A/en
Pending legal-status Critical Current

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    • 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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • 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
    • F03B15/00—Controlling
    • 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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/14—Rotors having adjustable blades
    • 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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/06—Controlling wind motors  the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The invention discloses a vertical axis Newtonian fluid kinetic energy absorption device, which comprises a vertical rotating shaft and at least one working plane, wherein the vertical rotating shaft is arranged on the vertical rotating shaft; each working plane comprises a paddle frame, a paddle horizontal rotating shaft, paddles and stop pins, wherein the paddle frame, the paddle horizontal rotating shaft, the paddles and the stop pins are symmetrically arranged on the left side and the right side, the paddle frame can rotate around the vertical rotating shaft, two ends of the paddle horizontal rotating shaft are respectively horizontally connected with two sides of the paddle frame, the paddles on the left side and the right side can rotate around the paddle horizontal rotating shaft, the stop pins capable of stopping the rotation of the paddles are respectively arranged on the bottom edges of the left side and the right side of the paddle frame, and the stop pins on the left side and the right. The invention skillfully utilizes the unbalance of wind power and gravity on two sides of the horizontal rotating shaft of the paddle, can improve the generating efficiency to 33 percent, which is equivalent to more than 2 times of 15 percent of the generating efficiency of the traditional vertical axis wind driven generator, and solves the emergency braking problem of the device, especially under the condition of strong wind.

Description

Vertical axis Newtonian fluid kinetic energy absorption device
Technical Field
The invention belongs to a kinetic energy absorption and/or conversion device, and particularly relates to a vertical axis Newtonian fluid kinetic energy absorption device.
Background
At present, fluid kinetic energy absorption devices are mainly applied to wind power generation equipment, such as: wind turbines, etc. A wind driven generator (wind turbine) absorbs kinetic energy contained in airflow (wind) and converts the kinetic energy into mechanical energy and further into electric energy.
From the direction of the main shaft, the wind turbine has two forms: one is a horizontal axis wind turbine, the other is a vertical axis wind turbine, and the current common use is the horizontal axis wind turbine, because the vertical axis wind turbine has the following two fatal defects compared with the horizontal axis wind turbine: (1) the efficiency is low, the wind energy utilization rate of the vertical axis wind turbine is only 8-15%, and is far lower than 35% of that of the horizontal axis wind turbine; (2) the emergency brake is difficult to realize in emergency, and particularly, the emergency brake problem in strong wind is not well solved.
However, the vertical axis wind turbine also has some advantages that the horizontal axis wind turbine does not have, such as: (1) the installation height is low, and the installation, inspection and maintenance are easy; (2) the empennage and the yaw system are not needed to drive the blades to wind; (3) the starting wind speed is low; (4) the unit kilowatt investment is small; (5) the tower design is simple.
Therefore, the technologist has not abandoned the research and development of the Newtonian fluid kinetic energy absorption device (particularly the vertical axis wind turbine thereof). By the invention, the performance and the feasibility of the vertical axis Newtonian fluid kinetic energy absorption device are improved greatly, the level of commercial operation is reached, and the economic benefit exceeds that of a horizontal axis system.
Disclosure of Invention
Aiming at the problems and/or the defects in the prior art, the invention aims to provide a vertical axis Newtonian fluid kinetic energy absorption device which ingeniously utilizes the unbalance of wind force on two sides of a horizontal rotating shaft of a blade and effectively ensures F1And F2The difference between the two wind power generation sets is maximized, the blade frame (the horizontal rotating shaft and the blades) is driven to rotate to generate power, the power generation efficiency is improved to 33 percent, and the power generation efficiency is equivalent to more than 2 times of 15 percent of that of the traditional vertical axis wind driven generator.
The technical scheme provided by the invention is as follows:
a vertical axis Newtonian fluid kinetic energy absorption device comprises a vertical rotating shaft and at least one working plane; each working plane comprises a paddle frame, a paddle horizontal rotating shaft, paddles and stop pins, wherein the paddle frame, the paddle horizontal rotating shaft, the paddles and the stop pins are symmetrically arranged on the left side and the right side, the paddle frame can rotate around the vertical rotating shaft, two ends of the paddle horizontal rotating shaft are respectively horizontally connected with two sides of the paddle frame, the paddles on the left side and the right side can rotate around the paddle horizontal rotating shaft, the stop pins capable of stopping the rotation of the paddles are respectively arranged on the bottom edges of the left side and the right side of the paddle frame, and the stop pins on the left side and the right.
Further, in the above-mentioned case,
in any of the above technical solutions, the paddles on the left and right sides are respectively or simultaneously flat.
Further, in the above-mentioned case,
in any one of the above technical schemes, the blade horizontal rotating shaft divides the blade into an upper part and a lower part: the height of the upper paddle is smaller than that of the lower paddle.
Further, in the above-mentioned case,
in any of the above technical schemes, the height of the upper blade is 0.01-0.95 of the height of the lower blade; preferably, the height of the upper paddle is 0.55-0.75 of the height of the lower paddle; in fact, the determination can be comprehensively considered according to the flow rate, the density and other factors of the fluid.
Further, in the above-mentioned case,
in any of the above technical solutions, the stop pin is electrically controlled to be leveled; preferably, the stop pin is controlled by an electromagnetic valve to be leveled or not.
Further, in the above-mentioned case,
in any of the above technical solutions, the at least one working plane is one working plane, two working planes, three working planes, four working planes, five working planes, six working planes, seven working planes, or eight working planes; preferably two working planes.
Further, in the above-mentioned case,
in any of the above technical solutions, the number of rows of the left and right blades in each working plane is at least 1 row, and/or the number of rows of the left and right blades in each working plane is at least 1 row, respectively or simultaneously.
Further, in the above-mentioned case,
in any of the above technical solutions, the number of rows of the left and right blades in each working plane is at least 2 rows, and/or the number of rows of the left and right blades in each working plane is at least 2 rows, respectively or simultaneously.
Further, in the above-mentioned case,
in any of the above embodiments, the newtonian fluid comprises wind and/or water.
Further, in the above-mentioned case,
in any of the above technical solutions, the vertical axis newtonian fluid kinetic energy absorption device is a vertical axis wind turbine or a vertical axis hydraulic turbine.
In addition, the invention can also be applied to the drainage power generation of the traditional hydroelectric power station, which is a new application field.
The invention has the following beneficial effects:
(1) skillfully utilizes the unbalance of wind and other fluid forces on two sides of the horizontal rotating shaft of the paddle to effectively ensure F1And F2The difference between the two is maximized, the paddle framework (the paddle horizontal rotating shaft and the paddle) is driven to rotate to generate electricity and the like, the utilization rate of fluid kinetic energy such as wind and the like is greatly improved, and the generating efficiency and the economic benefit are obviously improved;
(2) in terms of power generation, the power generation efficiency can be improved to 33 percent, which is more than 2 times of the 15 percent power generation efficiency of the traditional vertical axis wind driven generator, the investment per kilowatt is small, the power generation cost is low, and the economic benefit is good;
(3) the stop pin is controlled to fall down in an emergency state, so that the emergency brake problem is solved, and particularly the emergency brake problem under the strong wind condition is solved;
(4) the starting speed is low, power generation can be carried out under the condition that the wind or water flow speed is low, and the kinetic energy of wind and water flow is more fully utilized;
(5) the empennage and/or yaw system is not needed to drive the blades to face the wind direction, the control loop is simple, the installation height is low, and the installation, inspection and maintenance are convenient;
(6) the paddle adopts a flat plate type structure, the production process is simple, the material is saved, the cost is reduced, the weight is reduced, the economic benefit of power generation is improved, the maintenance is convenient, and meanwhile, the device is also suitable for other Newton mechanical fluids (such as water and the like).
Drawings
FIG. 1 is a schematic structural diagram of a single-working-plane vertical-axis Newtonian fluid kinetic energy absorption device of the present invention;
FIG. 2 is a schematic structural diagram of a dual-operation plane vertical axis Newtonian fluid kinetic energy absorption device of the present invention;
FIG. 3 is a schematic structural diagram of a multi-paddle vertical axis Newtonian fluid kinetic energy absorption device of the present invention;
FIG. 4 is a schematic representation of the operation of a single work frame blade of the present invention moving upwind;
in the figure: 1-vertical rotating shaft, 2-blade frame, 3-blade horizontal rotating shaft, 4-blade, 5-stop pin and 6-ground.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The terms "connected," "mounted," "disposed," and the like are to be construed broadly unless expressly stated or limited otherwise; for example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
As shown in FIG. 1, the device for absorbing kinetic energy of Newtonian fluid (taking wind power as an example) with a single working plane and a vertical axis of the invention comprises: the device comprises a vertical rotating shaft 1, a paddle frame 2, a paddle horizontal rotating shaft 3, a paddle 4 and a stop pin 5;
wherein the content of the first and second substances,
the vertical rotating shaft 1 is vertical to the ground 5;
the left and right sides symmetry of perpendicular pivot 1 is provided with paddle frame 2, paddle horizontal rotating shaft 3, paddle 4, and paddle frame 2 can rotate around perpendicular pivot 1, about paddle horizontal rotating shaft 3 both ends respectively with paddle frame 2's left and right sides horizontal connection, the paddle 4 of the left and right sides is flat-plate-shaped, can rotate around paddle horizontal rotating shaft 3 respectively, paddle horizontal rotating shaft 3 divide into two parts about paddle 4: the height of the upper paddle is smaller than that of the lower paddle, stop pins 5 capable of stopping the lower paddle from rotating are respectively arranged on the bottom edges of the left side and the right side of the paddle frame 2, and the stop pins 5 are respectively arranged on the inner side and the outer side of the left side and the right side of the paddle 4;
further, in the above-mentioned case,
the blade horizontal rotating shaft 3 is arranged at the golden section of the upper part and the lower part of the blade 4, namely the height of the upper blade is 0.618 of the height of the lower blade; the proportion can be adjusted according to the wind power and other conditions of the place where the wind field is located, and the smaller the height of the upper blade is, the better the lower the rotating force is;
further, in the above-mentioned case,
the stop pin 5 is controlled by an electric motor (such as an electromagnetic valve and the like), when the wind power is particularly high or emergency braking is required, the stop pin 5 can be flatly placed, so that the stop pin loses the function of stopping rotation of the bottom edge of the blade, the blade loses the function of receiving wind power, and the whole wind turbine stops working, thereby realizing the emergency braking;
the working process is as follows:
force F generating a rotational moment0The difference between the wind resistances from the left and right sides, e.g. the wind resistance on the left side is F1Right wind resistance is F2F is the sum of the frictional resistances of the system (which can be minimized by the system design), when F1-F2-f＝F0When the pressure is more than 0, the moment rotating to the left is generated, so that the left blade frame 2 (the blade horizontal rotating shaft 3 and the blade 4) is driven to rotate to generate power, and when the pressure is F2-F1-f＝F0When the value is more than 0, the rotation is performed to the right;
for generating a force F of a turning moment0And increase the wind energy utilization, demand F1And F2The larger the difference between the two, the better; in general, if the blade areas on the left and right sides are the same, F1＝F2The paddle frame 2 (the paddle horizontal rotating shaft 3 and the paddle 4) cannot be driven to rotate to generate electricity;
in the invention, taking the case that wind blows to a blade frame (a horizontal rotating shaft of the blade and the blade) from outside to inside as an example, the areas of the upper part and the lower part of the blade are different, the gravity of the lower blade is relatively large, the lower blade with a large area can be always kept at the lower position under the action of the gravity, a single self-starting direction is ensured, the bottom edge of the lower blade at the left side can be blocked by the blocking pin, so that the lower blade is abutted against the blocking pin at the bottom edge, no wind leakage is realized, the forced area of the wind is maximum, the forced force is also maximum, namely F1At the maximum, the stop pin on the right side does not work at this time (when the stop pin rotates to the left side, the stop pin can stop the stop pin), and under the action of wind, the blade can move along the bladeThe horizontal rotating shaft rotates and tends to be in a horizontal state, the stressed area of wind tends to be minimum, and the stressed force is also minimum, namely F2Minimum to ensure F1And F2The difference between the two parts is maximized, the left blade frame 2 (the blade horizontal rotating shaft 3 and the blade 4) is driven to rotate to generate power, and the rotating force F is realized by the cyclic reciprocating manner0The maximum acquisition of the wind energy utilization greatly improves the utilization rate of the wind energy, and obviously improves the power generation efficiency and the economic benefit;
through actual measurement and calculation, the vertical axis Newtonian fluid kinetic energy absorption device is used for wind power generation, the power generation efficiency can reach 33 percent, is equivalent to more than 2 times of the power generation efficiency of 15 percent of the traditional vertical axis wind power generator, and is basically equivalent to 35 percent of the power generation efficiency of a horizontal axis wind power generator;
meanwhile, the vertical axis Newtonian fluid kinetic energy absorption device is used for wind power generation, the investment cost is only half of that of a horizontal axis wind power generator, and the economic benefit is very obvious.
Example 2
In order to better realize self-starting and absorb the Newtonian fluid kinetic energy to a greater extent, the design of multiple working planes such as a double working plane, a 3 working plane, a 4 working plane and the like can be adopted, as shown in FIG. 2, which is a schematic structural diagram of the double working plane vertical axis Newtonian fluid kinetic energy absorbing device.
Example 3
By adopting a multi-blade mode, as shown in fig. 3, the blades on the left side and the right side are 3 rows and 2 columns, and the row number and/or the column number of the blades can be adjusted according to factors such as the height, the running diameter and the like of the whole device;
advantages of the multi-blade mode:
(1) the impact force on the stop pin when the paddle rotates along with the wind is reduced, so that the stop pin is not easy to damage, the noise caused by impact is reduced, and the environmental protection requirement is met;
(2) the friction noise of the rotating shaft is greatly reduced, the noise pollution is small, and the environment is protected;
(3) the return time of the blades is shortened, and the efficiency of the whole device for absorbing the kinetic energy of the fluid is improved.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims (10)

1. A vertical axis Newtonian fluid kinetic energy absorption device is characterized by comprising a vertical rotating shaft and at least one working plane; each working plane comprises a paddle frame, a paddle horizontal rotating shaft, paddles and stop pins, wherein the paddle frame, the paddle horizontal rotating shaft, the paddles and the stop pins are symmetrically arranged on the left side and the right side, the paddle frame can rotate around the vertical rotating shaft, two ends of the paddle horizontal rotating shaft are respectively horizontally connected with two sides of the paddle frame, the paddles on the left side and the right side can rotate around the paddle horizontal rotating shaft, the stop pins capable of stopping the rotation of the paddles are respectively arranged on the bottom edges of the left side and the right side of the paddle frame, and the stop pins on the left side and the right.
2. The vertical axis Newtonian fluid kinetic energy absorption device of claim 1, wherein the paddles at the left and right sides are flat, respectively or simultaneously.
3. The vertical axis Newtonian fluid kinetic energy absorption device of claim 1 or 2, wherein the blade is divided into an upper part and a lower part by the horizontal rotation axis of the blade: the height of the upper paddle is smaller than that of the lower paddle.
4. The vertical axis Newtonian fluid kinetic energy absorption device of claim 3, wherein the height of the upper blade is 0.01-0.95 of the height of the lower blade; preferably, the height of the upper blade is 0.55-0.75 of the height of the lower blade.
5. The vertical axis Newtonian fluid kinetic energy absorption device of claim 1 or 2, wherein the pin is electrically controlled to be flat or not; preferably, the stop pin is controlled by an electromagnetic valve to be leveled or not.
6. The vertical axis Newtonian fluid kinetic energy absorption device of claim 1 or 2, wherein the at least one working plane is one working plane, two working planes, three working planes, four working planes, five working planes, six working planes, seven working planes, or eight working planes; preferably two working planes.
7. The vertical-axis Newtonian fluid kinetic energy absorption device of claim 1 or 2, wherein the number of rows of the right and left blades in each working plane is at least 1 row, and/or the number of rows of the right and left blades in each working plane is at least 1 row, respectively or simultaneously.
8. The vertical-axis Newtonian fluid kinetic energy absorption device of claim 7, wherein the number of rows of the right and left blades in each working plane is at least 2 rows, and/or the number of rows of the right and left blades in each working plane is at least 2 rows, respectively or simultaneously.
9. The vertical axis Newtonian fluid kinetic energy absorption device of claim 1 or 2, wherein the Newtonian fluid comprises wind and/or water.
10. The vertical axis Newtonian fluid kinetic energy absorption device of claim 1 or 2, wherein the vertical axis Newtonian fluid kinetic energy absorption device is a vertical axis wind turbine or a vertical axis hydraulic turbine.
CN202010999746.3A 2020-08-19 2020-09-22 Vertical axis Newtonian fluid kinetic energy absorption device Pending CN112081713A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2020108374380 2020-08-19
CN202010837438 2020-08-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040164561A1 (en) * 2003-02-21 2004-08-26 Masato Nagawa Drive power apparatus and rotating member utilizing wind and blade member thereof
CN201297234Y (en) * 2008-10-10 2009-08-26 王金楼 Impeller unit for vertical axis wind and hydroelectric generators
CN201381937Y (en) * 2009-03-17 2010-01-13 陈琪伟 Fluid energy generating vane
CN201599138U (en) * 2010-02-10 2010-10-06 惠琬童 Automatic flip windmill capable of starting windward
CN101871429A (en) * 2009-04-21 2010-10-27 巨诺国际有限公司 Variable plane fan blade assembly and wind power engine and power generation system with fan blade assembly
WO2010130161A1 (en) * 2009-05-12 2010-11-18 Wei Bin Method and blade system for improving efficiency of energy extraction of vertical axis windmill generator's blades
CN201943889U (en) * 2011-01-13 2011-08-24 国民豹 Vertical-axis power fan

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040164561A1 (en) * 2003-02-21 2004-08-26 Masato Nagawa Drive power apparatus and rotating member utilizing wind and blade member thereof
CN201297234Y (en) * 2008-10-10 2009-08-26 王金楼 Impeller unit for vertical axis wind and hydroelectric generators
CN201381937Y (en) * 2009-03-17 2010-01-13 陈琪伟 Fluid energy generating vane
CN101871429A (en) * 2009-04-21 2010-10-27 巨诺国际有限公司 Variable plane fan blade assembly and wind power engine and power generation system with fan blade assembly
WO2010130161A1 (en) * 2009-05-12 2010-11-18 Wei Bin Method and blade system for improving efficiency of energy extraction of vertical axis windmill generator's blades
CN201599138U (en) * 2010-02-10 2010-10-06 惠琬童 Automatic flip windmill capable of starting windward
CN201943889U (en) * 2011-01-13 2011-08-24 国民豹 Vertical-axis power fan

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