WO2011008179A2

WO2011008179A2 - A vertical axis turbine

Info

Publication number: WO2011008179A2
Application number: PCT/TR2010/000133
Authority: WO
Inventors: Mahmut GÜR
Original assignee: PERTEK OSMAN ZEKI
Current assignee: PERTEK OSMAN ZEKI
Priority date: 2009-07-03
Filing date: 2010-07-01
Publication date: 2011-01-20
Anticipated expiration: 2012-01-03
Also published as: TR200905198A1; WO2011008179A3

Abstract

Vertical axis turbine having more than one opposite blades, consists of a vertical axis (3) rotating on a constant shaft (4) and full blade modules (10) connected to the blade shafts (5) which are positioned to the axis vertically. At the bottom of the constant shaft (4) there is the gear (2) transferring the movement and the generator (1) converting the movement to the energy. Full blade modules (10) consist of half upper (9) and lower (8) blade modules which are placed in opposite direction to each other. Each of the lower (8) and upper (9) half blade modules have two flaps which are fixed onto the blade shaft (5) in a certain angle. The invention has two separate movement systems occurring at the blades of the full blade module (10) and on the turbine axis. The axis (3) transfers the rotating movement to the generator (1) via the transferring gear (2) placed on the floor. The generator (1) has the function to convert the movement into electrical energy.

Description

D E S C RI P T I O N

A Vertical Axis Turbine

Technical Field

This invention is about the turbines enabling the conversion of the kinetic energy of the wind, water, gas and other natural energy resources to mechanical energy, and mechanical energy to the electrical energy.

The need for clean, renewable, widespread and cheap energy makes the technologies which enable to obtain maximum benefit from the natural energy resources such as wind, water and gas, obligatory. Prior Art hi the prior art; the energy production is supplied by rotary wind turbines, multi bladed turbines on the circular axis, Darrieus wind turbines and single bladed ecliptic turbines. All of the existing applications are focused on producing energy from the wind and only multi blade turbines on circular axis are used for producing energy from water.

The most commonly used turbine model which is the rotary wind turbine is basically formed by tower base, rotor shaped blades rotating around the axis which is placed vertically onto the bearing tower and the generator connected to the axis. The blade hub, axis and connected gears and the entire converting assembly are placed to the top of the bearing tower. The blades which are rotated to the direction of the wind, gain movement from the thrust power from the wind coming from the opposite direction and this movement is converted into electrical energy via converting generator. The blades rotating to the wind direction, gain movement as a result of the sliding of the blade on the direction of the wind with an nr>σlp nf rtrnetv rlpcrrppς Iw iUp* viή-nΛ ;+ tαt-α -

fi-_^^.-. +V>_^ n-^A this movement is converted into electrical energy via converter( generator). Since the thrust is not on wind direction, some part of the wind power is eliminated by crash. Thus, an intermittent movement occurs. Since the blade movement is 90 degrees perpendicular to the wind direction, wind gap occurs behind during the movement and the air dropping into the gap makes noise. The energy production capacity in these turbines depends on the length of the rotor blades. The rotor weight which increases in line with the turbine power, the weight of the axis, blade hub and the weight of the entire conversion unit make pressure on the bearing tower. Furthermore, there is need for a personnel stairs passing through the inside or outside of the tower in order to intervene with the mechanism on the top of the tower. Besides, the establishment or transport of the turbine requires huge crane and transportation vehicles. All of these facts increase the establishment and operational costs of the rotor blade wind turbines and also the adaptation problems to the wind direction significantly affect the output.

Multi bladed turbines on the circular axis on the other hand, put the entire load to the axis like rotor blade turbines. Since these turbines are multi bladed, they have a problem of balance and for this reason they are used at the areas which are not higher from the ground and especially for producing energy from the water. It is highly costly as it requires being building in gigantic dimensions in order to gain huge amounts of energy.

Darrieus wind turbines consist of a single spiral vertical rotor on the vertical bearing axis. Since the spiral structure of the rotor creates a resistance against the wind which it intakes, the turbine spends most of the energy it gains from the wind, for the movement of the blade; therefore it is not efficient.

The production capacities of the single bladed ecliptic turbines are also low. Since it takes thrust from one direction, there is problem with regards to the sustainability of the movement in line with balance and output. Furthermore, since the increase of the number of blades constitutes a problem with the blades to each other in all currently used models, there is a necessity to use only limited number of blades. Consequently, the increase in the energy amount gained can only be possible by enlarging the blade dimensions, which also leads high establishment, maintenance and operational costs.

Brief Description of Invention

The invention of which the registration is requested has vertical axis system. The axis provides the rotation of the main function transferring gear as well as has the function of a carriage in terms of the blades. There is a shaft on the centre of the axis which ensures the axis stand upright. The entire generator and transferring unit of the turbine are on the floor. For this reason, there is no pressure on the axis and the bearing shaft other than the blade weight. Since the axis transfers the entire movement which it creates during its rotation around itself by the thrust power of the blades to the gear existing on the ground, the energy is produced with nearly zero loss.

Vertical axis turbine with more than one opposite blades creates movement from every direction where thrust can be possible as the result of its blade design and opposite bladed structure. For this reason, the invention of which the registration is requested does not require to be rotated to the flow direction of the sources such as wind and water just like in the other turbines. The movement at the axis of the invention is in the thrust direction and continuous. There is not limitation of the number of the blades as well as the increase on the number of the blades will increase the energy gained which is opposite in the current turbines.

Furthermore it is not necessary for the blade dimension to be so big. For this reason it can be used not only with wind but also with water, gas and all kinds of other fluids. Since the invention has a modular design, it is easy to transport and install. It can be installed on any ground. Also, the invention of which the registration is requested is cheaper in terms of part costs as well as installation and operational expenses. For this reason the maximum possible output can be gained due to high unit energy gains from unit power as well as low costs.

Objective of Invention

Other than the energy production, the invention can be used at road and water vehicles just for creating movement.

The objection of the present invention is to produce a turbine that has no pressure on its axis and bearing shaft other than the weight of its blades.

Another objective of the present invention is to produce a turbine that its generator and transferring unit are on the floor.

A further objective of the present invention is to develop a turbine that produces energy with nearly zero loss. Another objective of the present invention is to develop a turbine that has an ability to create movement from every direction where thrust can be possible.

A further objective of the present invention is to develop a turbine that can be used not only with wind but also with water, gas and all kinds of other fluids.

Another objective of the present invention is to develop a turbine that is easy to transport and install

A further objective of the present invention is to develop a turbine that is ^' cheaper in terms of part costs as well as installation and operational expenses. Description of Figures

Affixed Figure 1 shows the general view of the invention.

Figure- 2 Top view of the invention.

Figure - 3 Frontal view of the entire blade unit

Figure - 4 3-D view of the half blade module of the invention

Figure - 5 the sectional view of the axis-shaft ball system of the invention

Figure - 6 the sectional view of the blade-shaft ball system of the invention The names and numbers of the main parts of the invention are given below

(1) Generator

(2) Transferring gear

(3) Axis

(4) Constant shaft

(5) Blade shaft

(6) Blade edge

(7) Blade inner surface

(8) Lower half blade module

(9) Upper half blade module

(10) Full blade module

(11) Synchronous gear

(12) Constant shaft ball

(13) Blade shaft ball

Description of Invention

Vertical axis turbine with more than one opposite blades, consists of constant shaft (4), vertical axis (3) rotating on constant shaft (4) and full blade modules (10) connected to the blade shafts (5) which are positioned to the axis vertically. The vertical axis (3) comprise a constant shaft (4) passing through its centre and a transferring gear (2) on its bottom. At the bottom of the constant shaft (4) there is the gear (2) transferring the movement and the generator (1) converting the movement to the energy. Full blade modules (10) consist of upper (9) and lower (8) half blade modules which are placed in opposite direction to each other. Each of the lower (8) and upper (9) half blade modules have two flaps which are fixed onto the blade shaft (5) in a certain angle.

The ball system consists of; constant shaft ball (12), blade shaft ball (13) and synchronous gears (11). Full blade modules (10) contact with constant shaft (4) which passes through the centre of the axis (3) and the constant shaft ball (12).Constant shaft ball (12) balances the rotation of the axis (4) around the shaft. There are blade shaft balls (13) which regulate the rotation of the blade shaft (5) during the opening and closing movements of the lower (8) and upper (9) half blade modules, existing in the axis. The balls also have the function of reducing the friction. Besides there are half circle shaped synchronous gears (11) in the relative part of the blade shaft(5) to the axis (3),which provide the harmonic opening and closing of the blades.

The invention has two separate movement systems occurring on the blades of the full blade module (10) and on the turbine axis, and the occurrence of this movement is explained below

Explanation of the blade movement:

The blades are designed as airplane wings. Due to their aerodynamic structure, the blade edge is exposed to lower pressure than the inside of the blade. For this reason, the end of the blade tends to open towards to the edge when it faces with thrust force.

The blades of the half blade modules are fixed onto the blade shaft (5) with an angle not smaller than ninety degrees. In the starting position, two of the opposite flaps on the same side of the lower(8) and upper (9) half blade modules on the full blade modules (10) are open, and the other two are in closed position due to this angle. In this position, open blades take the thrust coming from its source, from the blade head and the closed blades from the edge.

While, the flaps of the full blade module (10) which are in closed position are forced to be opened by the open flaps, they also try to open because of the pressure created by the inside of the blade to the blade edge. A balance circumstance is formed because of the effects of the opening forces from inner to outer direction and closing forces from the outer to inner direction in the enclosed area. For this reason the blades never close as well as, on the moment that the pressure in the blade is higher than the pressure created by the open blades, the closed blades begin to open. So that opening of the blades in one part simultaneously affects the closing of the blades on the other part

Explanation of the rotation movement:

The rotation movement is actually the rotating of the full blade module(lθ) the axis (3).The full blade module (10) rotates the axis (3) in the centre by creating a circular movement with the thrust power it takes from the inner surface of the blades (7) which are open in each time. The full module (10) in this situation, crates a horizontal rotary movement.

Since the thrust power coming from the source comes to the inner surface

(7) of the blade, a more powerful rotating movement can be achieved at small scaled turbines and sources with smaller force. For this reason, the invention is v- capable of creating energy not only from wind, but also from sources having relatively low flow rates such as water, oil and gas.

The axis (3) transfers the rotating movement to the generator (1) via the transferring gear (2) existing on the ground. The generator (1) has the function of converting the movement into electrical energy Since the opposite blade system on the full blade module (10) of the Vertical Axis Turbine with More than One opposite Blades, enables the turbine to get thrust from all directions, the problem of turning the turbine to the source of the force like in the technically-known applications, is totally solved.

It is possible to place more than one full blade modules (10) onto the single axis (3) of the invention. The figure -1 is the sample of the invention with three modules. Unlike the other turbines, in the invention, the increase in the blade module has increasing effect on the moment of the movement rather than limiting it.

The modular system of the Vertical Axis Turbine with More than One opposite Blades, consists of various parts, makes the installation, transport and maintenance easier and cheaper. Also, as the rotors and bearing towers current turbines requires to be build from metal or similar solid and heavy materials in terms of durability, the production of the invention of which registration is requested form light materials, is more suitable in terms as performance.

This invention makes a contribution to the development of the energy sector and the protection of the environment.

Claims

C L A I M S

1. A vertical axis turbine characterised in that; it comprises,

constant shaft (4),

vertical axis (3) rotating on constant shaft (4) ,

gear (2) which is transferring the movement on the axis bottom,

generator (1),

blade shafts (5) which are positioned horizontally to the axis,

Ml blade modules (10) having lower (8) and upper (9) half blade modules consisting of two flaps providing blade movement and opening and closing continuously and harmonic, each of which are fixed onto the blade shaft (5) with a certain angle,

ball system consisting of constant shaft balls(12), blade shaft balls(13) and synchronous gears(l 1), and the axis moves perpendicular and cyclical to the floor and that the rotating movement is provided with the movement of the full blade modules (10) to the thrust direction.

2. The full blade modules (10) according to Claim 1, that comprise; lower (8) and upper (9) half blade modules.

3. The lower (8) and upper (9) half blade modules according to Claim 1, that comprise; two flaps on the blade shaft (5) that designed in a shape of airplane wings and fixed to each other with an angle not less than ninety degrees.

4. The ball system according to Claim 1, that comprises; constant shaft balls (12), blade shaft balls (13) and synchronous gears (11).

5. The vertical axis (3) according to Claim 1, that comprise; a constant shaft (4) passing through its centre and a transferring gear (2) on its bottom.