WO1993003277A1 - Reversible mechanical kinetic to rotational energy converter - Google Patents

Reversible mechanical kinetic to rotational energy converter Download PDF

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Publication number
WO1993003277A1
WO1993003277A1 PCT/BR1992/000013 BR9200013W WO9303277A1 WO 1993003277 A1 WO1993003277 A1 WO 1993003277A1 BR 9200013 W BR9200013 W BR 9200013W WO 9303277 A1 WO9303277 A1 WO 9303277A1
Authority
WO
WIPO (PCT)
Prior art keywords
spinning
flux
spin
axis
blades
Prior art date
Application number
PCT/BR1992/000013
Other languages
French (fr)
Inventor
Pedro Paulo Manso Do Prado
Original Assignee
Pedro Paulo Manso Do Prado
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 Pedro Paulo Manso Do Prado filed Critical Pedro Paulo Manso Do Prado
Publication of WO1993003277A1 publication Critical patent/WO1993003277A1/en

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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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/065—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation
    • F03B17/067—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation the cyclic relative movement being positively coupled to the movement of rotation
    • 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 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • F03D3/068—Cyclic movements mechanically controlled by the rotor structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/221—Rotors for wind turbines with horizontal axis
    • F05B2240/2212—Rotors for wind turbines with horizontal axis perpendicular to wind direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/72—Adjusting of angle of incidence or attack of rotating blades by turning around an axis parallel to the rotor centre line
    • 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
    • Y02E10/20—Hydro energy
    • 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
    • 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

  • This invention consists of a mechanical equipment which transforms a gas or liquid flux energy into an axis spin (eg: wind or river flow that moves a spinning electrical generator), and also works backwards transforming a spinning energy into the movement of a gas or liquid (eg: fans, pumps, propellers) . It can also be called a multiple purpose turbine.
  • axis spin eg: wind or river flow that moves a spinning electrical generator
  • a spinning energy eg: fans, pumps, propellers
  • the first steps towards turbine's development are related to the first boat sails used. By observing the movement of those sails the first propellers were conceived. These propellers began to equip mills, pumps, ships, etc.
  • the main purpose of this invention is to provide a way to transduct a flux energy into rotative energy and vice-versa. This way is represented by the present mechanical transductor, which was conceived for multiple purpose use, after considering flux and spin essential concepts, thus exceeding normal turbine's performance.
  • the flux/spin (or spin/flux) mechanical transductor's structure and performance can be understood through the following illustration:
  • figure 4 flux/spin's CC longitudinal cross-section.
  • figure 1 there is a kind of spinning cylinder. It is composed of two circular gear and spinning oar blade housings and several spinning oar blades arranged in a cylindrical configuration. This system is supported on its edges by a board structure. In movement, when the whole system turns around itself, the spinning oar blades do the same around themselves, in the opposite direction with half of the whole system angular speed. As a result of the hitch established between the gas or liquid flux and the spinning of the whole system, gas or liquid sliding is avoided.
  • the external components of this invention can be identified by their respective identification numbers, as follows: the external coupling gear (2), attached to one of the circular gear and spinning oar blades housings (1) , which assemble the spinning oar blades (3) , and the transmission shaft (4) that joins the two circular gear and spinning oar blades housings.
  • This system is supported by its reference fixed axis (5) attached to the supports (6, 6') of the board structure (7).
  • the spinning oar blades (3) movement can be understood in figure 2, which shows sixteen positions of one spinning oar blade (3) along a complete circle. Notice that the involved forces vector diagrams always present the same flux direction at the constant tangential torque force for every position of the spinning oar blade along a complete circle.
  • the reference fixed axis (5) and the transmission shaft (4) are also shown in figure 2. In this simplified example both are installed in the center of the turbine, but many other positions are possible.
  • the spinning oar blades' (3) movement is determined by the whole system turning and by the internal gears, as shown in figure 3.
  • Five gears (9) are attached to the spinning oar blades, and their spinning axis (8) are installed in the circular gear and spinning oar blades housing (1, 1').
  • the circular gear and spinning oar blades housing (1, 1') also contain the spinning axis of the five transference gears (10), and they turn around the reference fixed axis (5) , which contains the fixed central gear (11) .
  • the transference gear (10) roll over the fixed central gear (11) thus making the gear (9) attached to the spinning oar blades rotate in the opposite direction, with half of its angular speed.
  • the basic relationship between the rotational movements of the whole system and the spinning oar blades is determined when the gear (9) attached to the spinning oar blades have double the diameter of the central fixed gear (11) , no matter the diameter of the transference gears (10) and other sizes involved.
  • the bearings of the gears (9) attached to the spinning oar blades, transference gears (10) and circular housings (1, 1') should be provided by ball bearings to minimize mechanical efforts.
  • both circular gear and spinning oar blades housing (1, 1') are attached one to the other by the transmission shaft (5) and by the screws (18) that reach the transmission holes;

Landscapes

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

Abstract

The present invention refers to a mechanical equipment that transforms flux energy (such as wind, water flow and so on) into a spinning form energy (a spinning axis torque) and vice-versa. The mechanical transductor, according to this invention, is composed by a spinning oar blades (3) system that moves in a flowing way, perfecting a kind of cylinder (1) with its axis (4), the spinning oar blades also turning round their own axis in the opposite direction of whole system rotation with half of its angular speed, so that the angle of attack of these blades always provides an action or reaction in the same direction of the flux.

Description

REVERSIBLE MECHANICAL KINETIC TO ROTATIONAL ENERGY CONVERTER
This invention consists of a mechanical equipment which transforms a gas or liquid flux energy into an axis spin (eg: wind or river flow that moves a spinning electrical generator), and also works backwards transforming a spinning energy into the movement of a gas or liquid (eg: fans, pumps, propellers) . It can also be called a multiple purpose turbine.
The first steps towards turbine's development are related to the first boat sails used. By observing the movement of those sails the first propellers were conceived. These propellers began to equip mills, pumps, ships, etc.
Several turbines have been conceived and developped ever since by using sophisticated techniques, and turbines with almost a 100% efficiency are available nowadays. Some specific conditions however, are necessary in order to obtain those results, as in hydroelectrical power plants.
Eolic turbines have just recently been deeply studied, and considerable results have been obtained.
The main purpose of this invention is to provide a way to transduct a flux energy into rotative energy and vice-versa. This way is represented by the present mechanical transductor, which was conceived for multiple purpose use, after considering flux and spin essential concepts, thus exceeding normal turbine's performance. Some of these performing aspects are listed below:
- Large applicability: a specific model shall be specified in each situation, instead of adapting the environment to the turbine itself, as it happens in hydroelectrical power plants nowadays, for example. Portable flux/spin models to be used in small rivers' flow should be available in department stores;
- Better Results: since there is no significant interference in a flux besides incrementing it or absorbing its energy (as an example, the air doesn't come out in a spinning way from a fan, but unidirectionally).Observe that the transmission shaft can be positioned out of the flux path, resulting in more efficiency; - Easy Speed Control: provides more steadiness and syncronism by permanently adjusting the angular position of the fixed reference axis;
- Noiseless: the wind is the only sound expected to be heard when it is working as a fan (cross section areas can be reduced in air conditioning ducts) ;
- Effectiveness: since flux and turbine's spinning are almost attached one to the other, it provides excellent results (eg: more powerful vacuum cleaners) ;
- Troubleless: since there is enough space for solid particles to pass through this turbine,obstruction problems are avoided (eg: fish can freely swim through this turbine) .
The flux/spin (or spin/flux) mechanical transductor's structure and performance can be understood through the following illustration:
- figure 1: flux/spin's perspective view.
- figure 2: flux/spin's A-A cross-section.
- figure 3: flux/spin's B-B cross-section.
- figure 4: flux/spin's CC longitudinal cross-section. In figure 1 there is a kind of spinning cylinder. It is composed of two circular gear and spinning oar blade housings and several spinning oar blades arranged in a cylindrical configuration. This system is supported on its edges by a board structure. In movement, when the whole system turns around itself, the spinning oar blades do the same around themselves, in the opposite direction with half of the whole system angular speed. As a result of the hitch established between the gas or liquid flux and the spinning of the whole system, gas or liquid sliding is avoided.
Any equipment built according to the basic rules of this invention, no matter the quantity and size of its parts, can be successfully achieved.
In figure 1, the external components of this invention can be identified by their respective identification numbers, as follows: the external coupling gear (2), attached to one of the circular gear and spinning oar blades housings (1) , which assemble the spinning oar blades (3) , and the transmission shaft (4) that joins the two circular gear and spinning oar blades housings. This system is supported by its reference fixed axis (5) attached to the supports (6, 6') of the board structure (7).
The spinning oar blades (3) movement can be understood in figure 2, which shows sixteen positions of one spinning oar blade (3) along a complete circle. Notice that the involved forces vector diagrams always present the same flux direction at the constant tangential torque force for every position of the spinning oar blade along a complete circle.
The reference fixed axis (5) and the transmission shaft (4) are also shown in figure 2. In this simplified example both are installed in the center of the turbine, but many other positions are possible. The spinning oar blades' (3) movement is determined by the whole system turning and by the internal gears, as shown in figure 3. Five gears (9) are attached to the spinning oar blades, and their spinning axis (8) are installed in the circular gear and spinning oar blades housing (1, 1'). The circular gear and spinning oar blades housing (1, 1') also contain the spinning axis of the five transference gears (10), and they turn around the reference fixed axis (5) , which contains the fixed central gear (11) . As the whole system turns around, the transference gear (10) roll over the fixed central gear (11) thus making the gear (9) attached to the spinning oar blades rotate in the opposite direction, with half of its angular speed. The basic relationship between the rotational movements of the whole system and the spinning oar blades is determined when the gear (9) attached to the spinning oar blades have double the diameter of the central fixed gear (11) , no matter the diameter of the transference gears (10) and other sizes involved.Applied to hard mechanic equipments, the bearings of the gears (9) attached to the spinning oar blades, transference gears (10) and circular housings (1, 1') should be provided by ball bearings to minimize mechanical efforts.
The join end surfaces of each part of the circular housings (1, 1') can be observed where screw pairs (12) are installed to close them.
The mechanical transductor different attaching components are shown in figure 4, as listed below:
- the reference fixed axis (5) , with threaded edges, externally supported by nuts that fix it to the board structure (7) (for other models the whole system can be supported by only one of its edges) ;
- the fixed central gears (11) , attached to the reference fixed axis (5) by snap rings (15) , installed in the reference fixed axis's slots, and by the retaining pins (16) installed in the reference fixed axis's holes (the two fixed central gears (11) are provided with slots for the retaining pins (16) , thus setting their related positions) ;
- both circular gear and spinning oar blades housing (1, 1') are attached one to the other by the transmission shaft (5) and by the screws (18) that reach the transmission holes;
- the circular gear and oar blades housings (1, 1') turn around together, setting the movements of the gear system and the spinning oar blades (3) , which move or are moved by the gas or liquid flow;
- the two halves' (lr ι, l'1') shrink fits of each circular housing (1, 1'), so that some lubricant can be kept internally, as, besides the shrink fits, the parts are joined by closing screws (12) that cause mechanical strength to the system;
- the sliding washers (21) that also consists of adjusting blades, besides distributing the skin friction (which can be diminished by using ball bearings) . This mechanical flux/spin or spin/flux mechanical transductor large applicability is remarkable, and can also have its performance improved if installed inside a conduct, or followed by flaps to provide an even more orientated flow circulation, or yet, be implemented into other technological sophistications, without losing its basic performing characteristics.

Claims

Claims
1 - MECHANICAL FLUX/SPIN OR SPIN/FLUX TRANSDUCTOR, which transforms flux energy into a spinning form energy, and vice-versa, comprehending a spinning oar blades system that moves in a flowing way, perfecting a kind of cylinder by its axis system rotation, having the spinning oar blades turning round their own axis in the opposite direction of the whole system with half of its angular speed, so that the angle of attack of these spinning oar blades always provide an action or reaction in the same direction of the flux.
2 - MECHANICAL FLUX/SPIN OR SPIN/FLUX TRANSDUCTO , according to claim 1, characterized by the cylindrical displacement and movement of its spinning oar blades, whatever the whole system components' amount and sizes, when employed in creating or absorbing a flux energy, even if it is complemented by other new technologies, since the basic movement relation is maintained.
PCT/BR1992/000013 1991-08-09 1992-08-10 Reversible mechanical kinetic to rotational energy converter WO1993003277A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR919103483A BR9103483A (en) 1991-08-09 1991-08-09 MECHANICAL TRANSDUCER FLOW / SWIVEL OR SWIVEL / FLOW
BRPI9103483 1991-08-09

Publications (1)

Publication Number Publication Date
WO1993003277A1 true WO1993003277A1 (en) 1993-02-18

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Application Number Title Priority Date Filing Date
PCT/BR1992/000013 WO1993003277A1 (en) 1991-08-09 1992-08-10 Reversible mechanical kinetic to rotational energy converter

Country Status (2)

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BR (1) BR9103483A (en)
WO (1) WO1993003277A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031385A1 (en) * 1997-12-15 1999-06-24 Adant Pierre Paul Wind turbine with transverse shaft
WO2004074680A1 (en) * 2003-02-24 2004-09-02 Leighton Evans Improvements relating to power generators
WO2008125806A2 (en) * 2007-04-12 2008-10-23 Adrian Janssen Fluid turbine
GB2454525A (en) * 2007-11-10 2009-05-13 Neil Andrew Blackett Caldwell Prime mover or pump
EP2362092A3 (en) * 2010-02-26 2014-04-30 CHAMPION Engineering Technology Company, Ltd. Vertical axis wind turbine with a planetary position transmission mechanism for the blades
WO2018203183A1 (en) * 2017-05-05 2018-11-08 Szabo Balint Flow turbine for hydro power plants
NL2032174B1 (en) * 2022-06-15 2023-12-21 Htp Tech B V Propellor system which is suitable for kinetic interaction with a fluid that flows unidirectionally through a channel, and a channel for a unidirectional fluid flow provided with such a propellor system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE859981A (en) * 1977-10-21 1978-02-15 Pinchard Andre G J H APPARATUS FOR CAPTURING THE VIVE FORCE OF A MOVING FLUID OR MOVING A FLUID OR FOR GENERATING A DRIVING FORCE
EP0008590A1 (en) * 1978-09-01 1980-03-19 Friedrich Friedl Turbo-machine
US4224012A (en) * 1978-09-28 1980-09-23 White Herbert O Timing mechanism for wind motors
FR2479344A1 (en) * 1980-03-28 1981-10-02 Lery Pierre Wind driven electricity generator - comprises wheel supporting several rotatable sails with adjustable angles relative to wind direction
DE3131586A1 (en) * 1981-06-19 1983-02-10 Econo-Mo-Systems E.Scherf, 8034 Germering Turbo-machine
US4609827A (en) * 1984-10-09 1986-09-02 Nepple Richard E Synchro-vane vertical axis wind powered generator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE859981A (en) * 1977-10-21 1978-02-15 Pinchard Andre G J H APPARATUS FOR CAPTURING THE VIVE FORCE OF A MOVING FLUID OR MOVING A FLUID OR FOR GENERATING A DRIVING FORCE
EP0008590A1 (en) * 1978-09-01 1980-03-19 Friedrich Friedl Turbo-machine
US4224012A (en) * 1978-09-28 1980-09-23 White Herbert O Timing mechanism for wind motors
FR2479344A1 (en) * 1980-03-28 1981-10-02 Lery Pierre Wind driven electricity generator - comprises wheel supporting several rotatable sails with adjustable angles relative to wind direction
DE3131586A1 (en) * 1981-06-19 1983-02-10 Econo-Mo-Systems E.Scherf, 8034 Germering Turbo-machine
US4609827A (en) * 1984-10-09 1986-09-02 Nepple Richard E Synchro-vane vertical axis wind powered generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MECHANICAL ENGINEERING (INC. CIME) vol. 101, no. 5, 1979, NEW YORK US page 48 S.WALTERS 'wind/water energy converter' *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031385A1 (en) * 1997-12-15 1999-06-24 Adant Pierre Paul Wind turbine with transverse shaft
WO2004074680A1 (en) * 2003-02-24 2004-09-02 Leighton Evans Improvements relating to power generators
WO2008125806A2 (en) * 2007-04-12 2008-10-23 Adrian Janssen Fluid turbine
WO2008125806A3 (en) * 2007-04-12 2009-04-30 Adrian Janssen Fluid turbine
US8858177B2 (en) 2007-04-12 2014-10-14 Momentum Holdings Limited Fluid turbine
GB2454525A (en) * 2007-11-10 2009-05-13 Neil Andrew Blackett Caldwell Prime mover or pump
GB2454525B (en) * 2007-11-10 2012-12-19 Neil Andrew Blackett Caldwell Prime mover
EP2362092A3 (en) * 2010-02-26 2014-04-30 CHAMPION Engineering Technology Company, Ltd. Vertical axis wind turbine with a planetary position transmission mechanism for the blades
WO2018203183A1 (en) * 2017-05-05 2018-11-08 Szabo Balint Flow turbine for hydro power plants
NL2032174B1 (en) * 2022-06-15 2023-12-21 Htp Tech B V Propellor system which is suitable for kinetic interaction with a fluid that flows unidirectionally through a channel, and a channel for a unidirectional fluid flow provided with such a propellor system
WO2023244104A1 (en) * 2022-06-15 2023-12-21 Htp Technologies B.V. Propellor system which is suitable for kinetic interaction with a fluid that flows unidirectionally through a channel, and a channel for a unidirectional fluid flow provided with such a propellor system

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Publication number Publication date
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