DE202023101522U1 - Spiral rotor device for fluid-powered power generation, assembly kit and use - Google Patents

Abstract

Spiral rotor device (10) set up for the fluid-driven generation of a torque about a shaft (11) of the spiral rotor device (10) which is oriented/alignable at least approximately in the fluid flow direction, in particular for generating energy, the spiral rotor device (10) having a plurality of spiral bands (15) which run along the shaft (11) are guided spirally around the shaft (11), preferably over at least one complete circumferential turn (360°); characterized in that the spiral bands (15) can be provided separately from the shaft (11) as a separate component, the spiral bands (15) being able to be coupled or fitted to a plurality of guide rods (13) of the spiral rotor device (10) aligned in at least two radial directions of extent are, by means of which the spiral bands (15) are held and guided at a plurality of axial positions.

Description

TECHNICAL AREA

The present invention relates to a spiral rotor device for fluid-driven generation of a torque about a shaft of the spiral rotor device that is at least approximately aligned/alignable in the direction of fluid flow, in particular for power generation, the spiral rotor device having a plurality of spiral belts which are guided along the shaft in a spiral shape around the shaft, preferably in each case over at least one complete circumferential turn. Furthermore, the present invention also relates to an assembly kit (kit) for such a spiral rotor device and the use of an assembly kit comprising three construction-based components for providing such a spiral rotor device. In particular, the invention relates to a device and a use according to the preamble of the respective independent claim.

BACKGROUND OF THE INVENTION

When it comes to generating energy from wind power or hydroelectric power, the current state of research already enables a high (energy) efficiency; however, this always requires a very application-specific design, e.g. taking into account the actual average flow speeds prevailing on site. However, this also leads to an approach that is comparatively cost-intensive for the manufacturing and installation process of the corresponding power plant, which can be observed, for example, with the ever larger offshore wind power plants. According to the state of the art, the requirement of high (energy) efficiency is therefore met by numerous technical optimization approaches, which aim to be able to amortize the profitability of an energy system in the medium to long term through good technical efficiency and energy yield. However, in many situations such a medium to long-term view cannot be implemented, in particular due to the need for high initial investments in economic and material-related terms. Rather, in many situations there is an interest in a very simple system solution, which above all should open up the possibility of equipping individual households or a few households or consumers.

The publication can serve as an example DE 20 2014 104 399 U1 be called, which describes a wind turbine with spiral blades.

Based on the state of the art, there is a need for approaches that can be used to noticeably minimize the technical and financial outlay in connection with the provision of energy systems.

SUMMARY OF THE INVENTION

The task is to design a spiral rotor device for fluid-driven energy generation, in particular from a structural point of view, in such a way that the spiral rotor device can be provided for different areas of use in the simplest and most cost-effective way possible, even in the event that only very few (material) resources are available at the respective installation site should be available.

This object is achieved by a spiral rotor device according to claim 1 and by an assembly kit (kit) for such a spiral rotor device according to the subordinate device claim and by uses according to the subordinate use claim. Advantageous developments of the invention are explained in the respective dependent claims. The features of the exemplary embodiments described below can be combined with one another unless this is explicitly denied.

A spiral rotor device is provided that is set up for fluid-driven generation of a torque about a shaft of the spiral rotor device that is oriented/alignable at least approximately in the fluid flow direction, in particular for power generation, the spiral rotor device having a plurality of spiral belts that are guided along the shaft in a spiral shape around the shaft, preferably over each at least one complete circumferential turn (360°);
According to the invention, it is proposed that the spiral bands can be provided as a separate component separately from the shaft, with the spiral bands being able to be coupled or mounted to a plurality of guide rods of the spiral rotor device, which are aligned in at least two radial directions of extension, by means of which the spiral bands are held and guided at a plurality of axial positions become. This also provides an advantageous compromise between design advantages, variability, manufacturing cost efficiency, decentralized site-specific feasibility, scalability.

Personified terms, insofar as they are not formulated here in the neuter, can relate to all genders in the context of the present disclosure.

According to one embodiment, the guide rods are each inserted into the shaft. On the one hand, this provides good robustness and, on the other hand, also an advantageous mounting option for example, a largely tool-free assembly, for example by using material expansion (shrinkage).

According to one exemplary embodiment, the guide rods are each inserted or passed through the shaft, for example in combination with a safeguard in the area of the shaft connection/leadthrough (e.g. by means of a lock nut). This also favors a symmetrical structure, a comparatively long shaft connection and thus also comparatively low material stresses, as well as good stability and smooth running.

According to one embodiment, the respective guide rod holds and guides two opposing spiral bands. This also enables a lean structure in terms of construction with the smallest possible number of parts/components.

According to one embodiment, exactly two spiral bands are provided, namely in an opposite arrangement at opposite circumferential positions (offset by 180°), the two spiral bands being guided symmetrically around the shaft parallel to one another, in particular over the same axial extent (the same axial length), in particular at least by 360° Circumferential angle (at least one circumferential turn). This also has an advantageous effect with regard to the slim structural design considered here and the lowest possible number of parts.

According to one exemplary embodiment, the guide rods are repeated at the same axial distance and specify the spiral winding with a constant angular offset in each case, in particular with an angular offset of 90° in each case. Such an arrangement has proven to be an advantageous compromise in terms of the use of materials, assembly costs and robustness of the support as well as the accuracy of the alignment of the guide surface defined by the spiral band.

According to one exemplary embodiment, a (radially external) traction means is provided at the free ends of the guide rods, which is guided over the free ends of the corresponding guide rods, predetermining the spiral winding. As a result, the radially outer area of the guiding surface can be controlled in a simple manner, advantageously over the entire guiding zone. The traction means can also be provided with a pre-definable pretension, e.g. via at least one actuator (e.g. an adjusting screw) at at least one end of the guide zone.

According to one exemplary embodiment, a (radially internal) traction mechanism is provided in the area of a respective shaft connection/throughput of the guide rods, which is guided along the shaft, predetermining the spiral winding via the shaft connection/throughput of the corresponding guide rod. As a result, the radially inner area to the shaft can also be influenced in a simple manner over the entire guide zone, in particular by adjusting the pretension of the traction means.

According to one exemplary embodiment, the spiral bands can be coupled to the course of the guide rods in that the spiral bands are/can be coupled to traction means guided over the guide rods. Last but not least, this also enables uninterrupted guidance without dividing or breaking through the guiding surface. Advantageously, the spiral bands rest on the guide rods with the vacuum side, so that the guide rods form a kind of support against the fluid flow pressure.

According to one exemplary embodiment, the spiral bands can be mounted on the guide rods by fastening/fastening individual spiral segments between the guide rods in the corresponding axial section. This can be done on a tangential flank or also on a line arranged centrally and frontally on the course of the spiral band on the respective guide rod.

According to one exemplary embodiment, the spiral bands have a pitch in the range from 35 to 55° relative to the axial direction, in particular a uniform pitch over the entire axial extension. Thanks to the very simple and robust structural design, the person skilled in the art can find the optimum pitch angle in each case as a function of the expected flow velocities and fluidically generated moments and the rotational speeds based thereon, depending on the desired energy absorption, and specify it in a simple constructive way, e.g. by specifying the axial distance of e.g. guide rods uniformly offset by a 45 or 90° circumferential angle to one another.

According to an exemplary embodiment, a material selection is made for at least one of the individual components of the spiral rotor device according to the following group: shaft made of corrosion-resistant metal, guide rods made of aluminum, guide surfaces of the spiral bands made of canvas or made of corrosion-resistant materials such as aluminum (alloy), plastic, seawater-resistant metal alloy, especially steel alloy. This also contributes to the approach considered here of providing a particularly robust, technically simple and cost-effective design which is also suitable for designing as a readily available assembly kit.

According to one embodiment, the spiral rotor device is set up and optimized for interaction with gaseous fluids (especially air), with at least the guide surfaces of the spiral bands preferably being made of canvas, preferably in the complete axial extension over the entire guide zone. Last but not least, this provides a particularly light and also cost-efficient and robust design. Dacron, for example, can be used as sail cloth, in particular due to its positive moisture-resistant properties.

Advantageously, the guide rods have eyelets on at least one end, in particular on the free end and in the area of the shaft (duct), in particular guide eyes for a belt or cable (or generally a traction device, e.g. made of metal or hemp). Last but not least, this enables the guide surface or a medium defining the guide surface to be braced between the cables in an advantageously simple manner. For example, the guide surface can be defined by canvas, which can be held, aligned and pretensioned on these ropes or by means of the eyelets, e.g. by clamping the canvas into the traction means using snap hooks.

Energy can be generated by gaseous fluids either in a coaxial arrangement of rotor and generator or in an arrangement one above the other with the interposition of a gearbox.

According to one exemplary embodiment, the spiral rotor device is set up and optimized for interaction with liquid fluids (in particular water), with at least the guide surfaces of the spiral bands preferably being made of plastic material, in particular in a configuration segmented between the guide rods. Last but not least, this enables the individual spiral band segments to be connected to the respective guide rod, as a result of which the geometry and the size of the respective segment can advantageously be small or simple in design, which means that (length) scaling can also take place in a simpler manner.

For liquid fluids, especially water, the corrosion resistance of the materials used is of great importance. Individual guide segments or elements are advantageously provided between the individual guide rods. In particular, the torque-generating or energy-generating guide zone is also advantageously configured by a material selection, in particular comprising at least one of the following materials: aluminum (alloy), plastic, corrosion-resistant sheet metal.

According to one exemplary embodiment, the shaft has at least one bearing section on which the shaft is mounted, in particular rotatably about an at least approximately vertical axis for aligning the shaft in the fluid flow direction. Last but not least, this also promotes a self-adjusting alignment of the shaft.

According to one exemplary embodiment, the shaft has at least two bearing sections, namely upstream and downstream of the spiral bands on which the shaft is mounted. This also provides a good and stable alignment of the shaft, especially in connection with a base that can be rotated in the direction of the wind. Optionally, the shaft is supported in only one axial section and is free at one end, in particular free at the end pointing upstream. The shaft can also be mounted indirectly via a/the generator, particularly in the case of a coaxial arrangement.

According to one embodiment, the spiral rotor device comprises a canopy which covers at least the axial section of the shaft in which the spiral bands run (guiding zone). This also favors good protection against external influences such as weather phenomena.

According to one embodiment, the spiral bands are exposed with no housing or without a radially outer perimeter. This also provides a particularly slim structural design, starting from which the diameter and length of the spiral rotor device can be scaled particularly easily.

According to one embodiment, the spiral rotor device is set up to use the torque generated around the shaft to generate electricity, in particular by the shaft being coupled/can be coupled to a generator of the spiral rotor device, the generator being able to be coupled to an energy grid or an external energy store and/or wherein the spiral rotor device comprises an energy store, into which the generator feeds. The connection to the generator can be implemented either coaxially or by at least one transmission component.

According to one exemplary embodiment, the spiral rotor device is buoyant, in particular having at least one anchoring unit and at least one buoyancy unit, with the spiral rotor device optionally set up for gaseous or liquid fluids. Last but not least, this also expands the spectrum of potential installation locations, especially very close to the coast without impairing the ground-based infrastructure.

According to one embodiment, the spiral rotor device can be arranged in a gradient, in particular in a tube arrangement, in particular having at least one guide tube for receiving the guide zone, in particular with the at least one guide tube in two bodies of water (in particular rivers) connecting arrangement. This also favors an integration between already existing bodies of water or fluid-carrying lines, which allow a fluid exchange.

According to one embodiment, the number of spiral rotor devices can be scaled in series on a common shaft with at least one additional guide zone. This further promotes the scalability already mentioned here.

According to one embodiment, the spiral rotor device is provided in an axial section defined by a pipe section, which can be installed interposed in a pipe duct. This favors a wide range of possible applications and also implementation as part of a retrofit in the field (subsequent equipment in an already installed infrastructure).

The aforementioned object is also achieved by an assembly kit (kit) for a spiral rotor device according to the present disclosure, comprising the components: shaft with bushings for guide rods, spiral bands, guide rods, fastening means for fastening the spiral bands to guide rods and/or shaft; wherein the spiral bands can be fastened to the guide rods, preferably by means of hook-in connections or by means of rails or in a positive/non-positive manner (i.e. not with a material bond). As a result, the aforementioned advantages can be realized, in particular with regard to particularly good availability even at locations with a shortage of materials and/or tools.

The aforementioned object is also achieved by using an assembly kit comprising three construction-based components for providing a spiral rotor device set up for fluid-driven generation of a torque around a shaft of the spiral rotor device that is at least approximately aligned/alignable in the fluid flow direction, in particular for power generation, namely the components shaft, spiral bands and guide rods ; in particular a spiral rotor device according to the present disclosure, wherein the guide rods are preferably inserted through the shaft with a circumferential angle offset of 90° each, wherein the spiral bands are preferably attached at least to the guide rods and optionally also to the shaft are attached. As a result, the aforementioned advantages can be realized, in particular with regard to a simple structural design and cost-effective design for decentralized site-specific installation of even very small units and also with regard to particularly good availability even at locations with a shortage of materials and/or tools.

character list

• 1 in einer Seitenansicht einen beispielhaften konstruktiven Aufbau einer Spiralrotorvorrichtung gemäß einem Ausführungsbeispiel, ohne dargestellte Spiralbänder;
• 2 in einer Draufsicht einen beispielhaften konstruktiven Aufbau einer Spiralrotorvorrichtung gemäß einem Ausführungsbeispiel, unter Angabe von beispielhaften Größenverhältnissen, ohne dargestellte Spiralbänder;
• 3A, 3B in einer Seitenansicht und in einer Frontansicht eine beispielhafte Implementierung einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen im Feld;
• 4 in perspektivischer Ansicht eine Spiralrotorvorrichtung gemäß einem Ausführungsbeispiel, ohne dargestellte Spiralbänder;
• 5 in einer Detailansicht eine Wellendurchführung zur Aufnahme von Leitstangen einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen;
• 6A, 6B jeweils in einer Seitenansicht eine spezifische Ausgestaltung von Spiralbändern bzw. Spiralsegmenten einer Spiralrotorvorrichtung gemäß einem Ausführungsbeispiel;
• 7A, 7B in einer Seitenansicht und in einer Frontansicht eine beispielhafte Implementierung einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen im Feld;
• 8A, 8B in einer Seitenansicht und in einer Frontansicht eine beispielhafte Implementierung einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen im Feld;
• 9A, 9B in einer Seitenansicht und in einer Frontansicht eine beispielhafte Implementierung einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen im Feld;
• 10, 11, 12 in einer Stirnseitenansicht und in zwei Seitenansichten weitere beispielhafte Implementierungen einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen im Feld;
• 13 in Seitenansichten und in Draufsichten einzelne Komponenten eines Stangengetriebes einer Spiralrotorvorrichtung gemäß Ausführungsbeispielen;
• 14 in einer Seitenansicht eine Spiralrotorvorrichtung gemäß Ausführungsbeispielen, bei welcher ein Stangengetriebe für zumindest annähernd parallel verlaufende Rotorwelle und Generatorwelle verbaut ist;
• 15 in einer Seitenansicht eine Spiralrotorvorrichtung gemäß Ausführungsbeispielen, welche in einem Rohr bzw. in einem Kanal verbaut ist, indem ein für die Spiralrotorvorrichtung vorgesehener Rohrabschnitt bereitgestellt wird, welcher im Rohrkanal zwischengeschaltet verbaubbar ist (optional Einzelbaumaßnahme bzw. Nachrüstoption),

The invention is described in more detail in the following drawing figures, reference being made to the other drawing figures for reference symbols which are not explicitly described in a respective drawing figure. They each show in a schematic representation:

• 1 in a side view an exemplary structural design of a spiral rotor device according to an embodiment, without shown spiral bands;
• 2 in a plan view an exemplary structural design of a spiral rotor device according to an exemplary embodiment, specifying exemplary proportions, without illustrated spiral bands;
• 3A , 3B Figures 12 are side and front views showing an example implementation of a spiral rotor device according to field embodiments;
• 4 a perspective view of a spiral rotor device according to an embodiment, without illustrated spiral bands;
• 5 in a detailed view, a shaft bushing for accommodating guide rods of a spiral rotor device according to exemplary embodiments;
• 6A , 6B each in a side view a specific configuration of spiral bands or spiral segments of a spiral rotor device according to an embodiment;
• 7A , 7B Figures 12 are side and front views showing an example implementation of a spiral rotor device according to field embodiments;
• 8A , 8B Figures 12 are side and front views showing an example implementation of a spiral rotor device according to field embodiments;
• 9A , 9B Figures 12 are side and front views showing an example implementation of a spiral rotor device according to field embodiments;
• 10 , 11 , 12 in an end view and in two side views further exemplary implementations of a spiral rotor device according to embodiments in the field;
• 13 in side views and in plan views, individual components of a rod gear of a spiral rotor device according to exemplary embodiments;
• 14 in a side view, a spiral rotor device according to exemplary embodiments, in which a rod gear is installed for at least approximately parallel rotor shaft and generator shaft;
• 15 in a side view a spiral rotor device according to exemplary embodiments, which is installed in a pipe or in a duct by providing a pipe section provided for the spiral rotor device, which can be installed in the pipe duct in an intermediate manner (optional individual construction measure or retrofit option),

DETAILED DESCRIPTION OF THE FIGURES

The invention will first be explained with general reference to all reference numerals and figures. Special features or individual aspects or aspects of the present invention that are clearly visible/representable in the respective figure are addressed individually in connection with the respective figure.

A spiral rotor device 10 is provided with a (rotor) shaft 11 extending in the axial direction x and guide rods 13 attached thereto, which are arranged adjacent to one another at a uniform axial distance x13 and which extend at least approximately in the radial direction r, and by means of which at least two spiral bands 15 are guided around the shaft 11 via a guide zone X16 (axial length of the spiral band), e.g. at an angle of incidence (pitch) of approximately 45°. Advantageously, guide rods 13 are provided at five axial positions, which are each arranged offset relative to one another with a circumferential angular offset of 90°. The connection 11.3 of the shaft to the respective guide rod 13 can advantageously be ensured by a passage, i.e. the respective guide rod 13 can be pushed through the shaft or inserted or screwed into it. The shaft 11 has at least one bearing section 11.5; the shaft can optionally be mounted in two bearing sections 11.5 on both sides of the guide zone. In an embodiment with a free end 11.1 (one or two bearing sections), this preferably faces upstream, ie against the direction of flow of fluid impinging on the spiral bands. The spiral bands 15 provide a guide surface 16, by means of which a torque can be generated around the shaft. A traction device 17 (on the inside or outside) can be guided over the free ends 13.1 of the guide rods and optionally also in the area of the respective connection to the shaft, by means of which the spiral bands can be fixed or at least aligned between the guide rods 13. Depending on the desired size of the spiral rotor, the respective spiral band 15 can optionally also be formed by spiral segments 15.1, which are fixed or held between adjacent pairs of guide rods 13.

The spiral rotor can be coupled to a generator 30, e.g. with a coaxial or parallel alignment of a/the generator shaft 31. Optionally, the rotor shaft 11 is coupled to a gear unit 20, in particular to a rod gear 21 having at least one rod 22, which is in particular orthogonal to the rotor shaft which can be ensured by means of gear wheels 23 (e.g. bevel gears) between the rotor shaft 11 and a/the generator 30. At least one tubular channel 24 in combination with at least one bearing 25 or a bearing 9 can be provided for receiving and/or supporting the individual (transmission) components.

The spiral rotor device 10 can be coupled directly to an energy network and/or have at least one energy store 40 into which generated energy can be fed. The spiral rotor device 10 advantageously has a control/regulation device 50 set up for controlling/regulating the energy consumption and feed-in.

For the exemplary implementation in the field, a canopy 1 covering at least the guidance zone can be provided, which can be supported by means of a canopy support 2 on the ground or on a floating pontoon or similar base (buoyancy unit 70). In the case of a floating arrangement, an anchoring unit 60 can be provided, by means of which the arrangement can be anchored in a stationary manner, in particular with an anchor chain length tolerance depending on site-specific water level changes. A wind vane 3 can optionally also be used to align the rotor shaft in the flow direction in a self-regulating manner. Optionally, a housing 5 can be implemented around the rotor, in particular in the form of a wind tunnel or a guide tube 80 . optionally, the entire arrangement can be mounted so that it can rotate relative to the ground or to the base, in particular by means of a rotary foot 7.

Special features of the invention are explained below with reference to individual figures or exemplary embodiments.

In 1 Figure 12 conceptually illustrates an embodiment of a rotor shaft with guide rods; the spiral bands are not explicitly shown or are not yet mounted between the guide rods.

In 2 Illustrated are example aspect ratios pertaining to the rotor shaft and guide rods and guide zone.

In 3A a fixed realization for a previously known prevailing flow direction is illustrated, wherein the two spiral bands circulating spirally over at least five guide rods are illustrated. The entire assembly is supported on the ground upstream and downstream of the guidance zone in two bearing supports; Optionally, this storage can also be realized on a rotary bearing or rotary base pivotable about an at least approximately vertical axis, in particular self-regulating by means of a wind vane. A generator shaft can be arranged coaxially or parallel to the rotor shaft and can be coupled via the gear wheel, for example. In 3B the arrangement is shown in the direction of flow (front side).

In 4 the conceptual structure of the rotor shaft with the guide rods fixed in/on it is illustrated.

5 shows an example of a shaft bushing, optionally realized by screwing in on both sides or by inserting a preferably one-piece guide rod that protrudes radially on both opposite sides.

In 6A an embodiment of the spiral band with an integral, one-piece course over several guide rods is illustrated. In 6B a multi-part or segment-like configuration is shown, in which spiral segments are provided between adjacent guide rods.

In 7A a realization for gaseous fluids is illustrated (spiral band not shown explicitly). The entire arrangement can pivot about an at least approximately vertical axis on a rotary bearing, in particular self-regulating by means of the wind vane. The generator is arranged coaxially to the rotor shaft. In 7B the arrangement is shown in the direction of flow (front side).

In 8A an embodiment with shafts arranged parallel to one another is shown. The generator shaft running below the rotor shaft is coupled in terms of transmission technology. In this configuration, too, the entire drive train can swivel, in particular thanks to being supported on a rotary base. In 8B the arrangement is shown in the direction of flow (front side).

In 9A an implementation in the form of a swimming power plant in a river is illustrated. Advantageously, the guiding zone is installed at a suitable depth in the main flow area. Optionally, several rotors can be installed in combination. In 9B the arrangement is shown in the direction of flow (front side).

In 10 is a realization of the in 9 illustrated system in combination with a walkable and advantageously arranged in a shore area floating jetty / pontoon.

In 11 an implementation in the form of a tubular power plant, for example for a reservoir or a watercourse with a sufficient gradient, is illustrated.

In 12 an implementation in the form of a tubular power plant, for example for a reservoir or a watercourse with a sufficient gradient, is illustrated.

In 13 11 components of a rod gear 21 are illustrated, in side views and in plan views.

In 14 a/the rod gear 21 is shown in installed arrangement; in this case, the generator is arranged above the rotor, which is particularly advantageous for use in water.

In 15 the spiral rotor device with (rod) gear is provided in an axial section defined by a pipe section, which can be installed in between in a pipe duct (optional individual construction measure or retrofit option), eg on pipe flange sections provided on both sides at the front. The diameter of the pipe section accommodating the guide zone of the spiral rotor is advantageously at least approximately the same size as the pipe diameter upstream/downstream of the pipe section.

In the 3A , 6B fastening means 18 for fastening the spiral bands to the respective control rod and/or to the shaft are indicated.

The block arrow shown in some figures illustrates the direction of fluid flow.

The high variability and broad applicability of the present invention emerges from the above exemplary embodiments, in particular in connection with decentralized, very site-specific energy supply.

Reference List

1

canopy

2

canopy support

3

wind vane

5

Enclosure, in particular wind tunnel

7

swivel base

9

warehouse, storage

10

spiral rotor device

11

Wave

11.1

free end

11.3

Connection to control rod, in particular through-hole

11.5

storage section

13

guide rod

13.1

free end

15

spiral tape

15.1

spiral segment

16

guide surface

17

traction mechanism (external)

18

Positive/non-positive fastening means, in particular hook-on connection or rail

20

gear (unit)

21

rod gear

22

Rod, in particular aligned orthogonally to the rotor shaft

23

Gear wheel, e.g. bevel gear

24

pipe channel

25

camp

30

generator

31

generator shaft

40

energy storage

50

control/regulation device

60

anchor unit

70

buoyancy unit

80

guiding scope

r, x

radial direction, axial direction

x13

Axial distance between two adjacent guide rods

X16

guiding zone

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 202014104399 U1 [0003]

Claims (21)

Spiral rotor device (10) set up for the fluid-driven generation of a torque about a shaft (11) of the spiral rotor device (10) which is oriented/alignable at least approximately in the fluid flow direction, in particular for generating energy, the spiral rotor device (10) having a plurality of spiral bands (15) which run along the shaft (11) are guided spirally around the shaft (11), preferably over at least one complete circumferential turn (360°); characterized in that the spiral bands (15) can be provided separately from the shaft (11) as a separate component, the spiral bands (15) being able to be coupled or fitted to a plurality of guide rods (13) of the spiral rotor device (10) aligned in at least two radial directions of extent are, by means of which the spiral bands (15) are held and guided at a plurality of axial positions. spiral rotor device claim 1 , wherein the guide rods are each inserted into the shaft; and/or wherein the guide rods are each inserted or passed through the shaft, for example in combination with a fuse in the area of the shaft connection/leadthrough. A scroll rotor device according to any one of the preceding claims, wherein the respective guide rod supports and guides two opposed spiral bands. Spiral rotor device according to one of the preceding claims, wherein exactly two spiral bands are provided, namely in an opposite arrangement at opposite circumferential positions, the two spiral bands being guided parallel to one another symmetrically around the shaft, in particular over the same axial extension, in particular at least around a 360° circumferential angle. Spiral rotor device according to one of the preceding claims, wherein the guide rods are repeated at the same axial distance and specify the spiral winding with a constant angular offset in each case, in particular with an angular offset of 90° in each case. Spiral rotor device according to one of the preceding claims, wherein at free ends of the guide rods there is provided a pulling means which is guided over the free ends of the corresponding guide rods in a manner defining the spiral winding; and/or in the area of a respective shaft connection/lead-through of the guide rods, a traction means is provided, which is guided along the shaft, predetermining the spiral winding, via the shaft connection/lead-through of the corresponding guide rod. Spiral rotor device according to one of the preceding claims, wherein the spiral bands can be coupled to the course of the guide rods by the spiral bands being/are coupled to traction means guided over the guide rods; or wherein the spiral bands are mountable to the guide rods by fastening/fastenable individual spiral segments between the guide rods in the corresponding axial section. Spiral rotor device according to one of the preceding claims, wherein the spiral bands have a pitch relative to the axial direction in the range of 35 to 55°, in particular a uniform pitch over the entire axial extent. Spiral rotor device according to one of the preceding claims, wherein at least one of the individual components of the spiral rotor device is selected from the following group of materials: shaft made of corrosion-resistant metal, guide rods made of aluminum, guide surfaces of the spiral bands made of canvas or of corrosion-resistant materials such as aluminum (alloy), Plastic, seawater-resistant metal alloy, in particular steel alloy. Spiral rotor device according to one of the preceding claims, wherein the spiral rotor device is set up and optimized for interaction with gaseous fluids (in particular air), wherein at least the guide surfaces of the spiral bands are preferably made of canvas, preferably in the complete axial extension over the entire guide zone. Spiral rotor device according to one of Claims 1 until 9 , wherein the spiral rotor device is set up and optimized for the interaction with liquid fluids (in particular water), wherein at least the guide surfaces of the spiral bands are preferably made of plastic material, in particular in a segmented configuration between the guide rods. Spiral rotor device according to one of the preceding claims, wherein the shaft has at least one bearing section on which the shaft is mounted, in particular rotatable about an at least approximately vertical axis for aligning the shaft in the fluid flow direction; or wherein the shaft has at least two bearing sections, namely upstream and downstream of the spiral bands, on which the shaft is mounted. A scroll rotor device according to any one of the preceding claims, wherein the scroll rotor device comprises a canopy covering at least the axial portion of the shaft in which the spiral bands run. A scroll rotor device according to any one of the preceding claims, wherein the spiral bands are exposed with no housing or no radially outer perimeter. Spiral rotor device according to one of the preceding claims, wherein the spiral rotor device is set up to use the torque generated around the shaft for generating electricity, in particular in that the shaft is coupled/can be coupled to a generator of the spiral rotor device, the generator being able to be coupled to an energy network or an external energy store and/or wherein the spiral rotor device comprises an energy store, into which the generator feeds. Spiral rotor device according to one of the preceding claims, wherein the spiral rotor device is buoyant, in particular comprising at least one anchoring unit and at least one buoyancy unit, with the spiral rotor device optionally set up for gaseous or liquid fluids. Spiral rotor device according to one of the preceding claims, wherein the spiral rotor device can be arranged in a gradient, in particular in a tube arrangement, in particular having at least one guide tube for receiving the guide zone, in particular with the at least one guide tube in two bodies of water (in particular rivers) connecting arrangement. Spiral rotor device according to one of the preceding claims, wherein the number of spiral rotor devices is scalable and can be installed in series on a common shaft with at least one further guide zone. A scroll rotor device according to any one of the preceding claims, wherein the scroll rotor device is provided in an axial section defined by a pipe section which is interposable in a pipe channel. Assembly kit for a spiral rotor device (10) according to one of the preceding claims, comprising the components: shaft (11) with passages (11.3) for guide rods (15), spiral bands (15), guide rods (13), fastening means (18) for fastening the spiral bands (15) on connecting rods (13) and/or shaft (11); wherein the spiral bands (15) can be fastened to the guide rods (13) preferably by means of hook-in connections or by means of rails or in a positive/non-positive manner. Use of an assembly kit comprising three components forming the basis of the design for providing a spiral rotor device (10) set up for fluid-driven generation of a torque about a shaft (11) of the spiral rotor device which is/can be aligned at least approximately in the fluid flow direction, in particular for generating energy, namely the components shaft (11), spiral belts ( 15) and guide rods (13); in particular in a spiral rotor device according to any one of the preceding Claims 1 until 19 , wherein the guide rods (13) are preferably inserted through the shaft (11) with a circumferential angular offset of 90° each, the spiral bands (15) preferably being fastened to the guide rods at least by means of hook-in connections or by means of rails or with a positive/non-positive fit and optionally also attached to the shaft.

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