Water wheel

Abstract

The invention relates to a water wheel (100, 200) that drives a shaft rotating about a rotational axis (101, 201), wherein the water wheel (100, 200) comprises a series of blades (102, 202), each blade (102, 202) having an inner end and an outer end, and the water wheel (100, 200) comprises at least three blades (102, 202), wherein at least two blades (102, 202), including a front blade in the direction of rotation (301) of the water wheel (100, 200) and a rear blade in the direction of rotation (301) of the water wheel (100, 200), form a space (111, 211). According to the invention, the front blade (104) has at its outer end a first surface (103, 203) on the rear side in the direction of rotation (301) which receives water, which leads to a surface of the second rear blade (102,202) in direction of rotation (301) is redirected to the front (105,205) of the rear blade (102,202), which may be designed as a secondary blade (105,205) that directs the water flow (300,302,303) to a second surface (106,206) on the rear of the front blade, which is arranged in front of the first surface of the front blade in the direction of rotation and the blades (102) are enclosed laterally by walls (110),

Description

[0001] The present invention relates to a water wheel according to the preamble of claim 1. scope

[0002] The scope of application of the present invention extends to the water wheels used to generate electrical energy from the water flow, preferably for a natural and / or artificial waterfall. State of the art

[0003] CN 20745382 describes a star-shaped water wheel in which the flow of water is used to generate electrical energy.

[0004] US 1929098 also describes a waterwheel in which the water flow is used to generate electrical energy. US 1578835 describes a waterwheel in which the water flow is used to generate electrical energy and in which the blade has a bend to better deflect the water flow. Another example of a waterwheel is described in WO 2019 / 059177 A1. Description

[0005] The object of the present invention is to realize a water wheel that uses the water flow better and more efficiently.

[0006] This object is achieved by a water wheel according to the characterizing part of claim 1. A water wheel is proposed which has a central axis to which a series of blades are mounted between two side walls, wherein one outer end is free and the second inner end is detachably connected to the central axis / central shaft in order to be able to rotate advantageously with the side walls.

[0007] Each vane has a front side in the direction of rotation and a back side in the direction of rotation of the vane. At least two vanes, one front and one back in the direction of rotation, form an intermediate space in which the front vane has, at its outer end, a first surface on the back side and deflects the water, which is then directed to a surface of the back vane on the front side where a secondary vane is formed, the surface of the back vane advantageously being inclined with respect to the axis of rotation of the water wheel and directing the water flow to a second surface of the front vane on the back side of the front vane, which is arranged in front of the first surface of the front vane in the direction of rotation. Advantageously, the surface on the front side of the back vane is formed by a secondary vane.

[0008] The row of blades is arranged between two side walls.

[0009] Each blade advantageously has a first radial part relative to the axis of rotation of the blade, a second part which has an angle α of 90 to 135° with the first part and extends forwards, and a third part which is substantially parallel to the first part and orthogonal to the second part, having a secondary blade on the front side of the blade.

[0010] Further objects, features, advantages, and possible applications will become apparent from the following description of some embodiments and the accompanying drawings. All described and / or illustrated features, in any combination, constitute the subject matter disclosed herein, regardless of their summary in the claims or their dependencies, in which: Figure 1 shows a perspective view of a water wheel according to the invention, Figure 2 shows a front view of the Figure 1 , Figure 3shows the section AA of the Figure 2 , Figure 4 shows the section BB of the Figure 2 , Figure 5 shows a side view of the Figure 1 , Figure 6a shows a front view of a water wheel according to the invention, Figure 6a shows the section AA of the Figure 6a , Figure 7a shows a perspective view of the Figure 6a , and Figure 7b a side view of the Figure 6a shows.

[0011] In Figure 1A water wheel 100 is shown, which has the axis of rotation 101, which can be formed, for example, by a shaft connected to a generator that generates electrical power and / or connected to a water pump. A series of blades 102 are attached to the axis 101 by side walls 110, wherein the inner end of the blade 102 is detachably connected by the side walls to a shaft that can rotate about the axis 101, and the outer end is free. The water wheel 100 has at least three blades 102, which are advantageously arranged evenly around the axis of rotation 101. At least two blades 102, including a front blade in the direction of rotation of the water wheel 100 and a rear blade in the direction of rotation of the water wheel 100, form a space 111. In the attached figures, the water wheel rotates counterclockwise.The flowing water stream 300, 302, 303, which drives the water wheel, is introduced at an angle of incidence onto the outer side of the vane 102, preferably between 50 and 68 degrees, particularly advantageously at 58 degrees. After impacting the outer side 103 on the rear side of the front vane 102, the water stream is redirected to a rear vane surface 105 on the front side of the rear vane. The water stream is then redirected from the rear vane surface 105 on the front side, which is advantageously a secondary vane, to a second surface 106 of the front vane 102 on the rear side, which is arranged in front of the first part 103 of the front vane 102 in the direction of rotation 301.Advantageously, each gap 111 between two blades 102 of the waterwheel 100 has this combination of surfaces, which allows the water flow to be deflected at least three times, thereby ensuring smoother and more efficient operation of the waterwheel 100. Advantageously, the blades 102 are laterally enclosed by the walls 110. Several laterally adjacent waterwheels 100, which share the same side walls, can be arranged on a shaft rotating about the rotation axis 101. In . Figure 6a Another embodiment of a water wheel 200 according to the invention is shown, which has the shape of a disc on which a series of blades 202 are arranged, for example in Figure 6aeight blades 202, which are advantageously arranged evenly around the rotation axis 201. At least two blades 202, including a front blade 202 in the direction of rotation of the water wheel 200 and a rear blade in the direction of rotation of the water wheel 200, form a space 211. The flowing water stream 300, which drives the water wheel, is introduced at an angle of incidence on the outer side of the blade 202, preferably between 50 and 68 degrees, particularly advantageously at 58 degrees. After impacting the outer surface, the first surface 203 on the rear side of the front blade 202, the water stream 302 is redirected to a surface 205 of the rear blade on the front side.The water flow is then redirected from the surface 205 of the rear vane 202 on the front side, which is advantageously a secondary vane, to a second surface 206 of the front vane 202 on the rear side, which is arranged in front of the first part 203 of the front vane 202 in the direction of rotation. Advantageously, each gap 211 between two vanes 202 of the waterwheel 100 has this combination of surfaces (sides), which allows at least the deflection of the water flow by at least three times, thus ensuring smoother and more efficient operation of the waterwheel 200.

[0012] As in Figure 6aAs shown, the angle α between the first and the intermediate surface 207 of the front blade 202 is preferably more than 90 degrees, the angle β between the intermediate surface 207 and the second rear side of the front blade 202 is advantageously approximately 90 degrees, and the angle γ is greater than 90 degrees between the second rear side of the front blade and the front side of the front blade 205, which advantageously forms a secondary blade. According to the invention, a hydroelectric power plant can be formed from a series of laterally adjacent water wheels, which are advantageously arranged on a shaft. In the attached figures, the direction of rotation is counterclockwise. Preferably, the side walls have grooves into which the blades or parts of the blades, advantageously made of plastic, steel or wood, are inserted, so that the blades of the water wheel can be quickly assembled and replaced.The force generated by water is transferred to the side walls, which then drive a wave, for example.

[0013] The previously described variants of the water wheel serve only to better understand the structure, functionality, and properties of the presented solution; they do not limit the disclosure by the exemplary embodiments. The figures are schematic, and properties and essential effects are partially shown significantly enlarged to clarify the functions, operating principles, configurations, and technical features. Each function, principle, technical configuration, and feature disclosed in the figures or in the text can be freely and arbitrarily combined with all claims, each function in the text and in the other figures, as well as other functions, principles, configurations, and technical features contained in or resulting from this disclosure, so that all conceivable combinations can be assigned to the described solution.Combinations of all individual embodiments are also included in the text, i.e., in each paragraph of the text, in the claims, and also combinations between different variants in the text, in the dimensions, and in the figures. The previously presented details of the device and method are presented in context; however, it should be noted that they can also be independently and freely combined with one another. The relationships between the individual parts and paragraphs shown in the figures, as well as their dimensions and proportions, are not to be understood as limiting. Individual dimensions and proportions may differ from those shown. The claims also do not limit the disclosure and thus the possible combinations of all the features presented. All features presented are also disclosed individually and in combination with all other features here. Reference number list

[0014] 100Waterwheel 101Axis of rotation 102Blade 103First back of the first blade 104First blade 105Front of the second blade / secondary blade 106Second back of the first blade 107Intermediate surface 110Outer surface of the wall / side wall 111Space between the two blades 200Waterwheel 201Axis of rotation 202Blade 203First back of the blade 204Second back of the blade 205Front of the second blade / secondary blade 206Second back of the first blade 207Intermediate surface 211Space 300Water flow 301Direction of rotation 302Water flow 303Water flow

Claims

1. Water wheel (100, 200) that drives a shaft rotating about an axis of rotation (101, 201), wherein the water wheel (100, 200) comprises a series of blades (102, 202), each blade (102, 202) having an inner end and an outer end, and the water wheel (100, 200) comprising at least three blades (102, 202), at least two blades (102, 202) including a front blade in the direction of rotation (301) of the water wheel (100, 200) and a rear blade in the direction of rotation (301) of the water wheel (100, 200), form a space (111, 211), wherein the front blade (104) having a first surface (103, 203) on its rear side in the direction of rotation (301) and receiving water which is diverted in the direction of rotation (301) to a surface of the second rear blade (102, 202) in the direction of rotation (301) on the front side (105, 205) of the rear blade (102, 202), which may be designed as a secondary blade (105, 205) that directs the water flow (300, 302, 303) to a second surface (106, 206) on the rear side of the front blade, which is arranged in front of the first surface of the front blade in the direction of rotation, and the blades (102) are enclosed laterally by walls (110).

2. Water wheel (100, 200) according to claim 1, characterised in that an intermediate surface(107, 207) is arranged between the first and second rear surfaces of the blade (102, 202), which forms an angle alpha α with the first surface of the front blade, preferably greater than 90°.

3. Water wheel (100, 200) according to claim 2, characterised in that an angle beta β, preferably approximately 90°, is formed between the intermediate surface (107, 207) and the second rear surface of the blade (102, 202).

4. Water wheel (100, 200) according to one of the previous claims, characterised in that an angle gamma γ greater than 90° is present between the second rear surface of the front blade and the front side of the front blade (205), which advantageously forms a secondary blade.

5. Water wheel (100, 200) according to one of the previous claims, characterised in that the side walls (110) are connected to the shaft.

6. Water wheel (100, 200) according to one of the previous claims, characterised in that the side walls have grooves into which the blades, advantageously made of plastic, steel or wood, are inserted.

7. Water power plant, characterised in that several water wheels according to the previous claims are arranged laterally on a shaft.

Images