WO2014048468A1 - Turbine comportant un corps de buse - Google Patents

Turbine comportant un corps de buse Download PDF

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Publication number
WO2014048468A1
WO2014048468A1 PCT/EP2012/068998 EP2012068998W WO2014048468A1 WO 2014048468 A1 WO2014048468 A1 WO 2014048468A1 EP 2012068998 W EP2012068998 W EP 2012068998W WO 2014048468 A1 WO2014048468 A1 WO 2014048468A1
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WO
WIPO (PCT)
Prior art keywords
rotor
turbine
flow
nozzle body
ring
Prior art date
Application number
PCT/EP2012/068998
Other languages
German (de)
English (en)
Other versions
WO2014048468A9 (fr
Inventor
Friedrich Grimm
Original Assignee
Friedrich Grimm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Friedrich Grimm filed Critical Friedrich Grimm
Priority to PCT/EP2012/068998 priority Critical patent/WO2014048468A1/fr
Publication of WO2014048468A1 publication Critical patent/WO2014048468A1/fr
Publication of WO2014048468A9 publication Critical patent/WO2014048468A9/fr

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Classifications

    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to an alignable to an onflow turbine with horizontal or vertical axis of rotation for converting the kinetic energy contained in an air or water flow into electrical energy with a
  • the nozzle body has an annular wing profile and encloses a Venturi tube.
  • the Venturi effect in the interior of the nozzle body accelerates an incident flow and thereby maintains a twist away from the axis of rotation.
  • the rotor blades in turn remove energy from the flow on the outside of the nozzle body, the flow slowing down and forming a suction zone on the side of the rotor blades facing away from the flow.
  • This circulation flow weakens the suction on the suction side of the rotor blades, so that a higher speed of the rotor blades and thus an improved efficiency of a turbine are made possible.
  • this circulation flow causes a ring vortex, which in turn builds up from the flow-facing side of an annular wing profile and about the axis of rotation
  • Vacuum range so that the flow is sucked from the nozzle body and directed to the rotor blades.
  • This aerodynamic or hydrodynamic effect has an advantageous effect on turbines of different design and size.
  • Air flow is swirled large-scale, so that conventional wind turbines must be arranged at a great distance from each other.
  • a much better energy yield relative to the available rotor diameter is provided by so-called shell turbines.
  • shell turbines Here it has been recognized that the air flow in a nozzle bundled and with higher speed or
  • Air flow on the rotor blade itself does not abruptly decelerate, an arrangement of idler and impeller is useful, the
  • Air flow at the stator receives a twist, which makes it possible to align the rotor blades steeper to the flow, so that the air is not significantly slowed down when flowing through the guide and impeller.
  • a diffuser space arranged behind the impeller also acts in which the air gradually returns to the surrounding flow velocity.
  • the second model is based on the principle of Actio and Reactio in the collision of moving and stationary air particles. With this interaction law or set of impulses it can be shown by a multiple vectorial force decomposition between infinitely many air particles that at the top of the
  • a wing profiling with a wing nose, a thickness backing and a sharp wing trailing edge is of crucial importance for the formation of the pressure conditions which arise on a streamlined wing profile. This also applies to a sash profile in the water.
  • From DE 883 428 B is a shell turbine with a
  • Wingtips opposite side is arranged.
  • Venturi nozzle in this case increases the kinetic energy of the flow, but the impeller at the narrowest point removes energy from the flow, so that the air at the
  • Air inlet nozzles here provide for the supply of outside air into the diffuser space of the turbine to mobilize kinetic energy in the downstream region of the rotor for a pressure reduction.
  • DE 40 34 383 AI shows a shell turbine with Leit- and
  • Impeller at the narrowest point of a nozzle body and a spaced from the nozzle body Konfusorring, the air from the outside into the discharge area of the impeller passes to the
  • Nozzle body for receiving stator and rotor ring of a
  • the rotor blades protrude from the inner surface of the rotor ring, so that support in the area of the axis of rotation is no longer necessary.
  • WO 2010/065 647 A2 discloses a shell turbine in which a stator and an impeller cooperate to the
  • the individual segments of the ring are used here, the
  • a second, downstream diffuser ring with
  • Wing profiling directs the air away from the axis of rotation or is in turn segmented to act as a second mixer ring.
  • Segmentation of the annular wing prevents the formation of a circulation flow around the wing.
  • US Pat. No. 6,053,700 A discloses a wind turbine in which a flow-through nozzle body is designed to accommodate the
  • a fan wheel is provided, the rotor blades parallel to
  • Rotation axis are arranged. Further rotor blades are arranged on the outside of the nozzle body. This arrangement consists exclusively of rotating parts.
  • a Nutzanengine To transmit the torque of the wind turbine to a Nutzanengine is a provided central shaft, which in turn is connected via a plurality of spokes to the inside of the nozzle body.
  • Nozzle body as a ring wing is not apparent from this document.
  • EP 1 365 106 Bl shows a wind turbine with loop-shaped rotor blades, which are fastened in each case with a front end and a rear end to a rotor shaft arranged concentrically and coaxially to the axis of rotation.
  • Rotating body This rotary body is mounted on both sides of a central shaft and with a to the flow
  • WO 2010/037 254 AI shows different forms of
  • Rotational bodies which are each mounted at its front and rear ends to a central, connected to the synchronous generator shaft. Connecting elements, each on
  • DE 10 2007 024 528 A1 shows a power generation plant which is driven by a wind or water flow, in which a synchronous generator is provided with an external rotor, which forms an annular support structure for the turbine.
  • the invention is based on the object, which adjusts itself to a nozzle body with a ring wing profile under flow
  • the flow at the wing nose divides into a partial flow, which flows freely through the nozzle body and a partial flow, which flows around the nozzle body from the outside.
  • a partial flow which flows around the nozzle body from the outside.
  • the outer partial flow energy is withdrawn by the rotor blades, wherein it slows down, the partial flow in the interior of the nozzle body in a
  • Diffuser stage a twist from the axis of rotation imprinted away.
  • the flow in the interior of the nozzle body is not only accelerated, but spreads to the trailing edge of the nozzle ⁇ body in a garbled manner.
  • the resulting on the suction side of the rotor blades Sogzone amplifies the screwing in a circulation ⁇ flow at the trailing edge of a nozzle body in a directed toward the wing leading edge backflow - the desired
  • a turbine with nozzle body can be used advantageously in wind turbines and water turbines of different design and size.
  • Rotor blades may be arranged in a plane of rotation, wherein via a rotary joint on the rotor blade root a stall pitch control is provided for limiting the rotor speed.
  • Rotor blades rigid with the rotor part of a nozzle body
  • a turbine according to the invention has a dynamic Konfusorlope the Venturi tube.
  • Konfusorch off Again, e.g. a three-winged one
  • Rotor blades inclined to the side facing away from the flow and through Confusing rings interconnected, is a stable
  • Rotor basket formed in which the jet with a twist away from the axis of rotation on a through the Konfusorringe and the rotor blades directed inward flow, so that within the rotor cage around a rotation axis around
  • This vortex causes a negative pressure on the downstream side, so that the
  • Flow is directed to the wind turbine and sucked from the nozzle opening.
  • Nozzle body rigid. An essentially extending from the wing nose to the wing trailing edge rotor part on the outside of a wing profile is on his
  • Circulation flow in progress extending from the trailing edge of the nozzle body in the direction of the wing nose
  • an outer confusion ring is provided, e.g. may have the same annular wing profile, as the inner nozzle body. Both annular wing profiles are rigid in this type by the vanes of a stator
  • variable-speed wind turbines with synchronous generator the alternating current generated by the synchronous generator varies in frequency and magnitude constantly. Therefore, a conversion from a rectifier to DC is required.
  • a synchronous generator may be formed as a brushless, permanent-magnet generator of which e.g. rectified three-phase AC voltage via an integrated diode bridge.
  • Synchronous generator carries the rotor ring Neodymium magnets.
  • the rotor ring In larger wind turbines rotates the rotor ring in a preferred embodiment of the invention, as shown in FIGS. 16-18, within the stator ring.
  • the rotor ring can also be arranged around the stator ring, so-called lamination being required to avoid eddy current losses.
  • an outer rotor ring As shown in Fig. 21, be particularly advantageous because an annular rotor hub on the one hand record the rotor ring and on the other hand can be directly connected to the rotor heads of the rotor blades.
  • Hydro turbines are exposed to corrosive influences.
  • an encapsulated relative to the surrounding medium construction of stator and rotor part of a nozzle body has a particularly advantageous.
  • the separated by a gap components are interconnected only by spaced bearings frictionally.
  • Rotor rings are the rotating components including the exciter windings and in the area of the stator ring are the
  • Rotor ring electromagnetically permeable sealing systems are provided.
  • the biaxially curved lateral surface of a nozzle body has an advantageous effect on the stability of a generator housing.
  • the nacelle is designed as a hollow body and has stiffening ribs or longitudinal and transverse bulkheads for transmitting the forces to the azimuth bearing of the mast. Apparent flaps in the lateral surface of the nozzle body in this case allow the accessibility of all
  • the nozzle body can be made of fiber-reinforced plastic with a foam core, wherein the pivot bearing between the stator and rotor part, e.g. Made of stainless steel with permanently lubricated deep groove ball bearings.
  • the pivot bearing between the stator and rotor part e.g. Made of stainless steel with permanently lubricated deep groove ball bearings.
  • the invention is always realized when the housing of a turbine is formed by a nozzle body with an annular wing profile.
  • the pressure conditions which arise at the annular wing profile have an advantageous effect on the torque of a turbine.
  • the flow on the nose part of a turbine is formed by a nozzle body with an annular wing profile.
  • Nozzle body from the outside flowing around partial flow, which is slowed down by the energy extraction by the rotor blades.
  • a circulation flow in the form of a ring vortex is formed.
  • Fig. 1 shows a turbine as an external rotor in the perspective overview
  • FIG. 2 shows a turbine as an external rotor in a schematic section along the axis of rotation
  • Fig. 3 shows a turbine as external rotor with representation of
  • Ring wing profile in schematic section along the
  • Fig. 4 is a turbine as a nozzle rotor in the windward side
  • Fig. 7 shows a turbine as lei runner in the perspective
  • FIG. 8 shows the turbine according to FIG. 7 in a perspective detail section
  • FIG. 9 shows the turbine according to FIGS. 7 and 8 in a detail section along the axis of rotation
  • Fig. 10 is a turbine as Leeorganizr in the windward side
  • FIG. 11 the turbine of FIG. 10 in a perspective
  • Fig. 13 is a turbine as Luvctionr in the windward
  • FIG. 15 shows the turbine according to FIGS. 13 and 14 in a perspective detail section
  • 16 shows a turbine as a wind turbine with a
  • FIG. 18 shows the wind turbine according to FIGS. 16 and 17 in a schematic detail section along the axis of rotation 19 shows a detail of the wind turbine according to FIG. 18 in schematic cross section
  • Fig. 20 is a turbine as a wind turbine with a
  • Fig. 1 shows a turbine 1 as external rotor 15 with a
  • Nozzle body 2 which is formed by a biconvex annular wing profile 20.
  • the nozzle body 2 comprises a stator 22 and a rotor part 23, wherein the horizontal rotary ⁇ axis X associated rotor blades 30 are formed as a rotor loops 302 and fluid at its end facing and its flow end facing away from each fixedly connected to the rotor part 23rd
  • the five rotor loops 302 are with respect to
  • Rotation axis x arranged at an angle and have a
  • the stator part 22 is pivotally connected via a mounting bracket 17 and an azimuth bearing 11 to a mast 16, wherein a guide surface 102 causes the automatic alignment to the flow f.
  • Fig. 2 shows a turbine 1 as external rotor 15, which in the
  • Type corresponds to the example shown in Fig.l, in a schematic section along the axis of rotation x.
  • Nozzle body 2 consists of an annular wing profile 20 with a wing nose 200, a thickness backing 201 and a wing ⁇ trailing edge 202 and encloses a three-stage Venturi tube 21 ⁇ with Konfusorease 210, nozzle constriction 211 and diffuser stage 212.
  • the nozzle body 2 has a substantially two-part design and has a stator part 22 and a rotor part 23. While the rotor part 23 forms the rotor hub 230,
  • stator part 22 includes an axle tube 220.
  • the stator part 22 and the rotor part 23 are interconnected by pivot bearings 24 connected, wherein in the region of the synchronous generator 3 a
  • the nozzle body 2 is connected in the region of the wing nose 200 and the wing trailing edge 202 with a mounting bracket 17 which is rotatably mounted on a mast 16 via an azimuth bearing 11.
  • Fig. 3 hydrodynamic effect of the nozzle body 2 and the rotor blades 30 in the interaction with a flow f is shown in Fig. 3 by way of example also for all other embodiments of a turbine 1 according to the invention.
  • FIG. 3 shows the schematic section through a turbine 1, the outer rotor 15 in the type in FIGS. 1 and 2
  • the annular wing profile 20 of the nozzle body 2 here has a concave-convex cut and the loop-shaped rotor blades 30 are horseshoe-shaped
  • Ring wing profile 20 to the flow-facing side. It comes to a superposition of the flow f with the return flow f '.
  • the flow f itself is specifically directed onto a turbine 1 by the negative pressure region which extends around the rotation axis x.
  • the novel aerodynamic and hydrodynamic concept presented here also makes it possible to use different types of construction as shown below
  • Turbines 1 according to the invention a higher energy yield at a given rotor diameter compared to conventional
  • Fig. 4 shows a turbine 1 consisting of a free
  • Nozzle body 2 arranged Konfusorring 101 with a
  • a stator 100 serves as a rigid connection between the nozzle body 2 and the Konfusorring 101. At the narrowest point between the two concentrically arranged annular wing profiles 20 of the nozzle body 2 and the Konfusorrings
  • the impeller 300 of the turbine 1 is arranged. While the inner Venturi tube 21 is flowed through freely, the air flow between the nozzle body 2 and the Confusor ring 101 by the arrangement of stator 100 and impeller 300 energy is withdrawn and transmitted to the impeller 300.
  • the clockwise rotating turbine 1 runs well as a nozzle rotor 13 even at low flow velocities and is with a guide surface
  • Guide surface 102 and turbine 1 are pivotally connected via an azimuth bearing 11 to a mast 16.
  • FIG. 5 shows the turbine 1 according to FIG. 4 from the leeward side.
  • the impeller 300 forms the rotor part 23 of the nozzle body 2 and is at the narrowest point between the freely flowed nozzle body 2 and the surrounding Konfusorring 101 arranged with ring wing profiling.
  • Nozzle body 2 and confusing ring 101 of crucial importance While the laminar flow tears off here, high-energy flows, which on the one hand flow around the confusion ring 101 from the outside and, on the other hand, flow through the nozzle body 2 from inside in a Venturi tube 21, respectively, roll toward the rotor blades 30, so that the suction on the suction side of the rotor blades attenuated and thereby the rotational speed of the impeller 300 is increased.
  • the turbine 1 flows in from the outside and from the inside, partial flows are formed which form a swirling flow rotating about the axis x.
  • a mast 16 with a circular cross section the turbine 1 is at a
  • Fig. 6 shows the turbine 1 according to FIGS. 4 and 5 in the
  • the nozzle body 2 and the confuser ring 101 each have an annular wing profile 20 with symmetrical
  • stator ring 32 and the rotor ring 33 of a synchronous generator 3 are received by the nozzle body 2, wherein the stator ring 32 is associated with the stator 22 and the rotor ring 33 forms the rotor part 23 of the nozzle body 2.
  • the flow f receives a twist, which is reduced by a complementary profiling of the rotor blades 30 of the impeller 300, so that the
  • the turbine 1 Flow downstream of the impeller 300, the turbine 1 largely parallel to the axis of rotation x leaves.
  • FIG. 7 shows a turbine 1 with a rotor 14 facing away from the flow.
  • a rotor cage 301 is attached to the nozzle body 2 with an annular wing profile 20, a stator part 22 and a rotor part 23
  • a plurality of rotor blades 30 is through Connecting rings 303 connected to a grid shell.
  • Connecting rings 303 act as Konfusorringe 101 and initiate a flow f from the outside into the rotor cage 301 a. In this way, the outer flow receives a twist toward the axis of rotation x, while the freely guided through the Venturi tube 2_
  • Rotation axis x developing vortex The turbine 1 with rotation direction R turns clockwise.
  • a large number of rotor blades 30 with a wing profiling have an angle of attack relative to the flow f and guide the latter
  • the stator part 22 of the nozzle body 2 is fixedly connected to a guide surface 102, which in turn is articulated via an azimuth bearing 11 to a clamped mast 16.
  • the turbine 1 rotates about the axis of rotation y with the wing nose 200 of the annular wing profile 20 in the wind.
  • the rotor cage 301 can be produced in one piece as a plastic injection-molded part in the case of a small turbine 1
  • Fig. 8 shows the turbine 1 of FIG. 7 in perspective
  • the nozzle body 2 has a concave-convex
  • Rotor ring 33 of the synchronous generator 3 is assigned to the rotor part 23 of the nozzle body 2.
  • a multiplicity of rotor blades 30 are each connected rigidly to the blade root 310 of the nozzle body 2 at the blade root 310.
  • Confusion rings 101 connect the rotor blades 30 to each other to form a rigid rotor cage 301.
  • the anchoring of the turbine 1 takes place via a mast 16, to which a symmetrical wing profile is articulated as a guide surface 102, so that the flow f is braked as little as possible.
  • the high dimensional stability of the nozzle body 2 allows precise storage of stator ring 32 and rotor ring 33 of the
  • Synchronous generator 3 also under bending, pushing and torsion stress.
  • stator part 22 and the rotor part 23 of the nozzle body 2 as compared to a surrounding medium of saline air or salt water encapsulated components
  • Fig. 9 shows the turbine 1 according to FIGS. 7 and 8 in one
  • the nozzle body 2 has an annular wing profile 20 with wing nose 200, thickness backing 201, wing trailing edge 202 and chord 203 and is on a vertical mast 16 via an azimuth bearing 11 and a
  • the nozzle body 2 encloses a Venturi tube 2_ with Konfusorease 210, nozzle constriction 211 and diffuser stage 212.
  • a plurality of rotor blades 30 is connected by connecting rings 303 with each other to a rotor cage 301.
  • Rotor blades 30 are inclined at an inclination angle ⁇ of about 25 degrees with respect to the axis of rotation x in the direction of the flow f.
  • the Confusor rings 101 show in cross section
  • a partial flow which accelerates through the Venturi tube 21 ⁇ receives a twist from the annular wing profile 20 with a likewise inclined profile chord 203
  • FIG. 10 shows a turbine 1 with a rotor 14 facing away from the flow in a front view.
  • the nozzle body 2 forms with a stator 22 and a rotor part 23 a freely ventilated Venturi tube 21 ⁇
  • the wind turbine 1 automatically aligns with the wing nose 200 of the annular wing profile 20 to the wind, where the leeward tilted, curved rotor blades 30 absorb energy from the flow f and air to
  • Rotation axis x evolving vortex which is a local
  • Negative pressure causes in the flow f and therefore directs the flow f on the turbine 1.
  • FIG. 11 shows the turbine 1 according to FIG. 10 in the perspective side view.
  • Blade tips 311 connected by a connecting ring 303 in the form of a confusion ring 101 with each other.
  • the turbine 1 is directed via a guide apparatus 10, consisting of the Confusor ring 101 and a guide surface 102 via an azimuth bearing 11 as
  • Rotor blades 30 a rotor blade profile 31 with a changing angle of attack ⁇ to the flow f on.
  • the nozzle body 2 traversing part flow is deflected away from the axis of rotation x.
  • the annular wing profile 20 forms a circulation flow, so that forms from the flow-side facing a rotating about the axis of rotation x vortex roll.
  • FIG. 12 shows a perspective detail section of the turbine 1 shown in FIGS. 10 and 11.
  • FIG. 13 shows a turbine 1 with a rotor 12 facing the flow.
  • the venturi tube 2 has a dynamic confusion stage 210.
  • a total of six rotor blades 30 are rigidly connected to the rotor part 23 of the nozzle body 2 and extended at the blade root 310 to form a rotor
  • This diffuser 10 directs the flow f on the nozzle body. 2
  • FIG. 14 shows the turbine 1 illustrated in FIG. 13 in a perspective view from the side facing away from the flow.
  • the wing trailing edge 202 of the annular wing profile 20 is formed wavy in this embodiment, to promote the formation of a circulation flow around the annular wing profile 20 around.
  • the stator 22 of the nozzle body 2 is rigid with a symmetrical wing profile, which forms a guide surface 102 for aligning the turbine 1 and a non-illustrated azimuth bearing 11 with a fixed
  • FIG. 15 shows the turbine 1 shown in FIGS. 13 and 14 in a sectional perspective.
  • a ring vortex V which directs the flow to a rotor 12 facing the rotor.
  • the perspective section shows the integration of a synchronous generator 3 into a nozzle body 2 with stator ring 32 and rotor ring 33.
  • the turbine 1 with encapsulated stator and rotor part 22, 23 is particularly well suited as a water turbine e.g. suitable for the use of a tidal current, with all electrical components and control elements in the
  • Stator and rotor part 22, 23 of the nozzle body 2 are integrated.
  • Fig. 16 shows a turbine 1 as a wind turbine with a
  • rotor facing the rotor 12.
  • Three rotor blades 30 are connected to the rotor part 23 of a nozzle body 2.
  • a rotary joint is provided, with which the angle of attack ⁇ of the rotor blades 30 can be varied for a stall pitch control.
  • the nozzle body 2 is rigidly connected to the guide surface 102 and is directed to a mast 16 via an azimuth bearing 11 to the flow f from.
  • FIG. 17 shows the turbine 1 according to FIG. 16 as a wind turbine in a perspective detail section.
  • the nozzle body 2 forms in this wind turbine, a nacelle for receiving a synchronous generator 3 including all control and
  • a peripheral Konfusorring 101 is provided, the air flowing around the nozzle body 2 laminar air at an acute angle
  • Rotation axis x deflects. This air flow encounters a high-energy jet of air which releases the Venturi tube 21 ⁇
  • Rotation axis x is deflected away. When the two air streams meet, a vortex forms around the axis of rotation x.
  • the rotor ring 33 of the synchronous generator 3 is connected to an annular rotor hub 230.
  • the rotor heads 230 of the rotor blades 30 also adjoin the rotor hub 230.
  • the stator part 22 of the nozzle body 2 is rigidly connected to a symmetrical wing profile as a guide surface 102.
  • the drag coefficient c w of this wing profile is about 0.04, in contrast to a flowed
  • Fig. 18 shows the schematic longitudinal section through a
  • Nozzle body 2 which is the nacelle of a large wind turbine forms whose aerodynamic concept corresponds to the example described in FIGS. 16 and 17.
  • Three rotor blades 30 are articulated via a hinge on the blade root 310 to an annular rotor hub 230.
  • the rotor hub 230 is formed as a welded steel box profile.
  • Leeston is equipped with pole pieces rotor ring 33 directly to the rotor hub 230th
  • the rotor ring 33 runs within the over
  • Induction coils 320 excited stator ring 32.
  • the stator ring 32 in turn is connected to an axle tube 220 which receives the rotor hub 230.
  • Spacing bearings 24 which are spaced apart from one another enable a bending, thrust and torsion-resistant connection of the stator part 22 and the rotor part 23 of the nozzle body 2
  • Ring wing profile 20 is formed as a biconvex profile and encloses with its more curved side a three-stage Venturi tube 21 with Konfusorease 210, nozzle constriction 211 and diffuser stage 212. To generate a about the rotation axis x rotating vortex, the nozzle 10 additional
  • the distributor 10 may also comprise a confusion ring 101. These optional additional elements serve to support the basic aerodynamic principle of a ring vortex V on an annular wing profile 20.
  • FIG. 19 shows a schematic cross-section of the arrangement of a distributor 10 according to FIG. 18 with eight transverse nozzles 103 in the region of the Venturi tube 21 for producing a vortex rotating about the axis x of a turbine 1.
  • FIG. 20 shows a turbine 1 as a three-bladed wind turbine, in which the machine nacelle is formed by a nozzle body 2 which encloses a Venturi tube 21.
  • the flow f accumulates in a
  • Rotation axis x is driven away to the outside, thereby curls, and the suction on the suction side of the rotor blades 30 degrades to unite in a large-scale circulation flow with the flow f.
  • the nozzle body 2 is rotatably connected to a mast 16 via an azimuth bearing 11. Swivel joints on the blade roots 310 allow the adjustment of the rotor blades 30 in the sense of a stable pitch control.
  • the aerodynamic concept of the nozzle body 2 facilitates the
  • Fig. 21 shows a schematic section along the
  • the rotor blades 30 are not shown in detail
  • Rotor hub 230 connected, which in turn is connected via spaced pivot bearing 24 with an axle tube 220 of the stator 22 of the nozzle body 2.
  • the arrangement of an outer rotor ring 33 offers particular advantages, since to avoid eddy current losses an outside sheet metal can be integrated directly into the supporting profile of an annular rotor hub 230, wherein the rotor hub 230 in the plane of rotation z on rotor heads is directly connected to the rotor blades 30.
  • TPM transversal ⁇ flow machine
  • the annular wing profile 20 forms the machine ⁇ gondola and takes as an aerodynamically shaped housing in addition to the synchronous generator 3 all control and Leit Roaden a wind turbine.
  • stator part 22 encapsulated with respect to the sea air and rotor part 23 of a nozzle body 2 represents a particular advantage.
  • gap 34 In the region of the gap 34
  • stator and rotor ring 32, 33 an electromagnetically permeable seal is provided in this case.
  • Tendon 203 of the biconvex annular wing profile 20 is slightly inclined relative to the axis of rotation x to windward side.
  • Ring wing profile 20 shows a thickness reserve 201 and encloses a three-stage Venturi tube 2_ with Konfusorhand 210,
  • Nozzle constriction 211 and diffuser stage 212 The flow f is accelerated in the venturi tube 21 and directed away from the axis of rotation x.
  • wing trailing edge 202 is formed by the in Fig. 3 explained in detail pressure and suction conditions on the annular wing profile 20, a ring vane V from.

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Abstract

L'invention concerne une turbine (1) qui est destinée à transformer l'énergie cinétique contenue dans un écoulement (f) en énergie électrique et qui est réalisée sous forme d'une turbine éolienne ou hydraulique laquelle présente un axe de rotation (y) permettant de l'orienter par rapport à un écoulement (f) et laquelle comporte au moins une pale (30) associée à un axe de rotation (x). Une turbine (1) selon l'invention comporte un corps de buse (2), en disposition concentrique et coaxial à l'axe de rotation (x), ledit corps entourant un tube de venturi (21) dépourvu d'obstacles à l'écoulement et comportant un profil d'aile annulaire (20) pourvu d'un bord d'attaque (200), d'une position d'épaisseur maximale (201), d'un bord de fuite (202) et d'une corde de profil (203), et formant ainsi, avec une partie stator (22) et avec une partie (23), un logement pour une bague fixe (32) respectivement pour une bague mobile (33) lesquelles font partie d'un générateur synchrone (3). Selon l'invention, la partie stator (22) reçoit la bague fixe (32) et la partie rotor (23) reçoit la bague mobile (33), les deux parties (22, 23) d'un corps de buse (2) étant reliées l'une à l'autre à l'aide d'au moins un coussinet (24), et les pales (30) étant disposées sensiblement sur la face extérieure du corps de buse (2) et raccordées à la partie rotor (23). Un écoulement (f) est divisé par le bord d'attaque (200) d'un profil d'aile annulaire (20) pour ainsi obtenir un écoulement d'air ou d'eau passant par l'intérieur du corps de buse (2) en subissant une accélération et un écoulement d'air ou d'eau contournant le corps de buse (2) extérieurement en étant ralenti par les pales (30), faisant en sorte qu'un tourbillon annulaire (V) se forme au bord de fuite (202), le sens de rotation dudit tourbillon étant tel qu'il diverge de l'axe de rotation (x) vers le bord d'attaque (200) du profil d'aile annulaire (20) pour ainsi rejoindre le côté aspiration des pales (30).
PCT/EP2012/068998 2012-09-26 2012-09-26 Turbine comportant un corps de buse WO2014048468A1 (fr)

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PCT/EP2012/068998 WO2014048468A1 (fr) 2012-09-26 2012-09-26 Turbine comportant un corps de buse

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WO2016011454A1 (fr) * 2014-07-18 2016-01-21 Eip Technologies, Inc. Génération d'énergie éolienne directe
DE102016007054A1 (de) 2016-06-06 2017-12-07 Friedrich Grimm Strömungskonverter mit einem strömungsleitwerk
WO2019034684A1 (fr) 2017-08-17 2019-02-21 Ruprecht, Albert Turbine à ailette annulaire
US10253746B2 (en) 2014-09-25 2019-04-09 Eip Technologies, Inc. Renewable energy generation based on water waves
IT201800006172A1 (it) * 2018-08-27 2020-02-27 Enrico Rosetta Turbina eolica con girante nella quale l'aria entra da ingressi centrali ed esce dalla zona periferica.
CN111279068A (zh) * 2017-10-20 2020-06-12 流程图生成程序开发管理有限责任公司 流能装置，特别是风轮机
DE102021004136A1 (de) 2021-08-09 2023-02-09 Friedrich B. Grimm Vorrichtung für ein Drehflügelfahrzeug oder für eine Drehflügelturbine

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WO2010037254A1 (fr) 2008-09-23 2010-04-08 Zhang Yulong Rotor d’éolienne à effet venturi
WO2010065647A2 (fr) 2008-12-02 2010-06-10 Flodesign Wind Turbine Corporation Interface à supercondensateur dans une génératrice annulaire d'éolienne
WO2011094569A1 (fr) * 2010-01-28 2011-08-04 Flodesign Wind Turbine Corp. Turbine à fluide
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US4075500A (en) 1975-08-13 1978-02-21 Grumman Aerospace Corporation Variable stator, diffuser augmented wind turbine electrical generation system
DE4034383A1 (de) 1990-10-29 1992-04-30 Behnke Klaus Windturbine nach der turbinentheorie
DE19711869A1 (de) 1997-03-21 1998-09-24 Silke Richert Windenergieanlage mit integriertem Triebstrang
US6053700A (en) 1997-09-24 2000-04-25 Fosdick High-Tek Wind Turbines, Inc. Ducted turbine
EP1365106B1 (fr) 2001-01-26 2009-08-05 Minoru Yoshida Machine a fluide
JP2002332953A (ja) 2001-05-09 2002-11-22 Seishiro Munehira 運動エネルギー収集装置
EP1394406A2 (fr) 2002-08-28 2004-03-03 Friedrich Prof. Dr.-Ing. Klinger Eolienne sans multiplicateur avec générateur multipolaire
US7218011B2 (en) 2003-04-16 2007-05-15 Composite Support & Solutions, Inc. Diffuser-augmented wind turbine
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WO2010037254A1 (fr) 2008-09-23 2010-04-08 Zhang Yulong Rotor d’éolienne à effet venturi
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WO2011094569A1 (fr) * 2010-01-28 2011-08-04 Flodesign Wind Turbine Corp. Turbine à fluide
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US10352303B2 (en) 2014-07-18 2019-07-16 Eip Technologies, Inc. Direct wind energy generation
CN107078615A (zh) * 2014-07-18 2017-08-18 Eip技术股份有限公司 直接风能发电
US9803623B2 (en) 2014-07-18 2017-10-31 Eip Technologies, Inc. Direct wind energy generation
US11319928B2 (en) 2014-07-18 2022-05-03 Eip Technologies, Inc. Direct wind energy generation
WO2016011454A1 (fr) * 2014-07-18 2016-01-21 Eip Technologies, Inc. Génération d'énergie éolienne directe
US10570884B2 (en) 2014-07-18 2020-02-25 Eip Technologies, Inc. Direct wind energy generation
US10851759B2 (en) 2014-09-25 2020-12-01 Eip Technologies, Inc. Renewable energy generation based on water waves
US10253746B2 (en) 2014-09-25 2019-04-09 Eip Technologies, Inc. Renewable energy generation based on water waves
US10480481B2 (en) 2014-09-25 2019-11-19 Eip Technologies, Inc. Renewable energy generation based on water waves
US11199172B2 (en) 2014-09-25 2021-12-14 Eip Technologies, Inc. Renewable energy generation based on water waves
DE102016007054A1 (de) 2016-06-06 2017-12-07 Friedrich Grimm Strömungskonverter mit einem strömungsleitwerk
DE102017007907A1 (de) * 2017-08-17 2019-02-21 Friedrich Grimm Ringflügelturbine
WO2019034684A1 (fr) 2017-08-17 2019-02-21 Ruprecht, Albert Turbine à ailette annulaire
CN111279068A (zh) * 2017-10-20 2020-06-12 流程图生成程序开发管理有限责任公司 流能装置，特别是风轮机
IT201800006172A1 (it) * 2018-08-27 2020-02-27 Enrico Rosetta Turbina eolica con girante nella quale l'aria entra da ingressi centrali ed esce dalla zona periferica.
DE102021004136A1 (de) 2021-08-09 2023-02-09 Friedrich B. Grimm Vorrichtung für ein Drehflügelfahrzeug oder für eine Drehflügelturbine
WO2023016901A1 (fr) 2021-08-09 2023-02-16 Friedrich Grimm Véhicule à voilure tournante et turbine à voilure tournante
DE102021004136B4 (de) 2021-08-09 2023-03-09 Friedrich B. Grimm Vorrichtung für ein Drehflügelfahrzeug oder für eine Drehflügelturbine

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