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
  • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
  • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
  • F03D3/0427—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels with converging inlets, i.e. the guiding means intercepting an area greater than the effective rotor area
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/70—Wind energy
  • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

• Modular Stato-Wind with low noise level The various winds sweeping the earth's surface constitute an essentially fluctuating atmospheric phenomenon. They can be of inconsistent direction, intensity and shape and can be exerted in squalls, gusts, tornadoes, cyclones or by more or less irregular breaths. Finally, their peak energy is often destructive as irrefutably demonstrate all the failures attributable to the propeller / pylon system during a period spanning 1/2 century. Furthermore, the power collected cannot exceed 0.38 V 3 (W / m 2 ) and, in the best of cases: that is to say when the speed V (m / s) in the wake of the propeller falls to 1/3 of the wind speed.
• This stato-wind is based on the association of concomitant effects that the wind exerts on any static obstacle of cylindrical conformation with vertical axis (horizontal section Fig.I). However, these effects also appear when the obstacle is a static peripteral structure, according to the horizontal section (Fig.2).
• a frontal dynamic overpressure SP
• DL high intensity lateral depression
• D1 less intense lateral depression
• Ds wake depression
• the applied technology consists in taking advantage, not only, of the frontal dynamic overpressure (SP) which is exerted upstream of the turbine blades, know again, of the sum of the depressions (DL + Dl + Ds), lower than the pressure static atmospheric.
• stato-wind constitutes either a mechanical generator, either an electric generator, or a stato-wind heat pump which draws heat from the atmosphere through the kinetic energy of the winds.
• This stato-wind is developed so that the impetuosity of the gusts undergoes spreading with modification of speed and pressure in order to make them indestructive.
• the internal path traversed by the wind takes on the schematic formation (Fig. 3) of two venturis in series which are successively dependent on two deflecto-convergent (I and 2) and spiro-divergent (3 and 4).
• the first venturi taking effect on the upstream front in dynamic overpressure, ends in a spreading chamber where the passage section at the neck is several times less than the upstream entry section. Beyond this threshold, the flow flows spirally between two concentric steps and ends at the right of the turbine blades where the inlet section is several times larger than at the spreading neck. At this level, the initial shape and speed of the flow are spread and the pressure has increased. This is how the wind flow approaches in excellent conditions the second venturi formed by the turbine blades and a peripheral step. .
• the profile located between two successive blades, of deflecting convergent conformation allows an adiabatic expansion with final speed of flight slightly higher than the opposite tangential speed of the reaction blades. Then, the flow spirally flows on the internal inclined plane of the peripheral step which leads to the downstream areas in dynamic depression.
• This stato-wind turbine constituting a compact and well balanced low noise level construction, is obtained by molding of expanded materials.
• an ancient agreement ensures this building a tenacity resistant to the strongest storms.
• the curved obliqueness of the wings determines the distribution of two complementary functions.
• Each of these two functions is exercised respectively on one of the two faces of a circular bowl (6) arranged horizontally.
• this bowl hollowed out in its center by the spreading chamber (7), is taken in sandnich between two circular flanges, one underlying ( ⁇ ) constituting the base of the converging injection nozzles, the another (9) covering the turbine duct (10) from above.
• the horizontal bowl constitutes in its hollowed-out center an energy transfer chamber (16) of different configuration according to three versions.
• one or two coaxial turbines open the way to three variants: one simplified with low power, the other two more elaborate with medium and high power.
• the regulation of the peaks of gusts is effected by means of the three circular steps arranged concentrically, between which, the gusts spread out in a flow uniformly distributed over all the turbine blades .
• a central turbine (17) of medium or high power (FIG. 7) constituting a flywheel, accumulates the kinetic energy of the gusts and restores it in the form of a regularized wind flow which then leads either to a medium power co-axial turbine, i.e. several high power turbines (18) arranged in the bowl all around the chamber spreading (Fig. 8 and 9).
• the regulating turbine is also stalled on the shaft of an electric generator, not ex cited in winds less than 25m / s, but which is excited beyond this threshold.
• This excitation proportional to the kinetic energy of the wind thus authorizes the production of alternating or direct currents depending on the desired application (heating, recharging of batteries or dissociation of water into hydrogen, or even the creation of small complexes for the production of 'a synthetic fuel, such as methanol obtained by water, wind and C0 2 always present in the air. Consequently, the steps in the first variant and the regulating turbine in the other two, constitute in the three cases the essential elements of large production in stormy winds or very high flow.
• the three variants are provided with a crown of leaves which are articulated on the extradorsal environment of each wing. These leaves are more or less repelled by the wind.
• the leaves not subject to direct wind, are kept closed by the double effect of a return spring and the dynamic downstream depression. The leaves opposing the downstream sound diffusion, then in zero wind provide protection against any animal or human intrusion.
• These leaves also maintain a flow inversely proportional to the wind speed by opening more or less the motor injection section. Therefore, the multiplying factor is high for low speed winds to be only 4, for high speed winds.
• these leaves are controlled by oleo-pneumatic cylinders in order to optimally regulate the high power flow. In this case, the opening of the leaves is subject to wind pressure and remains locked in zero wind.
• the pilot element is the angular speed of each corresponding turbine.
• a generator (19) wedged on the shaft (20) of the turbine, produces excitation currents by scanning two polar masses of a permanent magnet of circular conformation (21).
• a double armature is fitted with hypermagnetic screens (22) equidistant behind each of which, the conductors which are housed therein are perfectly protected from the uniform magnetic flux.
• Each of these screens takes the place of one notch tooth removed out of four.
• this double armature is wound, the portion of conductor loops housed between two consecutive teeth is subjected to the uniform flux, while the bundle of conductor loops hidden by the screen is magnetically isolated.
• the rotary excitation armature is also dependent on a winding (23) which superimposes its field on that of the magnet whose increasing excitation is under the control of the voltage of the main armature (24) which increases with the force of the wind.
• the resistive torque is reduced to the exciting action of a single magnet acting on a mobile excitation winding, connected in series with the winding of the main inductor (25). Then, for a minimum wind of 5 to 8m / s, the main inductor then excited, generates in its turn on the main armature, a current proportional to the energy of the wind in alternative or continuous form.
• the new configuration is refined (Fig.I2), the internal flow is greatly improved and the turbine blades are larger in order to compensate for less engine flow. energetic.
• a transfer chamber constitutes the seat of an aerovortex which, once started, maintains a strong central depression towards which the wind flows from the driving nozzles are accelerated.
• the two frustoconical elements in fact constitute an intake variator increasing or limiting the flow rate by a modification of wind intake angle.
• This variation is obtained by means of an omnifunctional aerostabilizing device (28) subject to said hemi-frusto-conical elements.
• This aerostabilizing device (diagram, Fig.13), comprises a fin with two asymmetrical leaves (29 and 30), coaxial articulated and juxtaposed, one against the other by zero wind. The asymmetry of the two leaves drift stabilizes in the wind over the bed aérovor tex, because they are unevenly exposed to the dynamic pressure SV 2/2, thereby generating an anti-torque opposing the torque that s' exercise this in the said room.
• these two drift wings deploy on an arc of 120 ° when the wind is exerted according to the schematic views, (Fig.14 and Fig.15).
• This action is carried out by means of a front shield (31) integral with the two wing wings.
• This shield is constituted by two arms (32) which extend each wing wing beyond the joint (27). These two arms are respectively extended by an articulated flap (33). linked as soon as the wind exerts a frontal thrust, these two flaps, accompanying the two arms of the shield, are deployed by partially masking the drift located behind the axis of articulation, simultaneously causing the movement of the leaves on an arc of 120o. This deployment thus modifies the angle of admission of the wind into the aerovortex chamber.
• the shield when the wind exceeds a predetermined threshold depending on a site, the shield, being abutted by the own deployment of the two leaves, folds in turn, thus unmasking a larger area of the said leaves.
• the opening angle can be reduced from 0 ° to 120 ° or vice versa by the simple set of fins, a shield and return springs.
• stato-wind turbine replaces a multitude of universal easements where energy saving requires it.

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• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Wind Motors (AREA)

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• 1981
  • 1981-07-20 FR FR8114373A patent/FR2509801A1/fr active Granted
• 1982
  • 1982-06-18 EP EP19820901847 patent/EP0083598A1/de not_active Withdrawn
  • 1982-06-18 WO PCT/FR1982/000101 patent/WO1983000363A1/en not_active Application Discontinuation

Non-Patent Citations (1)

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