NL1037527C2 - Water-wheel with pivoting paddles. - Google Patents

Water-wheel with pivoting paddles. Download PDF

Info

Publication number
NL1037527C2
NL1037527C2 NL1037527A NL1037527A NL1037527C2 NL 1037527 C2 NL1037527 C2 NL 1037527C2 NL 1037527 A NL1037527 A NL 1037527A NL 1037527 A NL1037527 A NL 1037527A NL 1037527 C2 NL1037527 C2 NL 1037527C2
Authority
NL
Netherlands
Prior art keywords
water
wheel
blades
water pressure
blade
Prior art date
Application number
NL1037527A
Other languages
Dutch (nl)
Inventor
Hugo Karel Krop
Kees Bannink
Original Assignee
Hugo Karel Krop
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 Hugo Karel Krop filed Critical Hugo Karel Krop
Priority to NL1037527A priority Critical patent/NL1037527C2/en
Application granted granted Critical
Publication of NL1037527C2 publication Critical patent/NL1037527C2/en

Links

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Description

Water-wheel with pivoting paddles.
A water-wheel is a part of an apparatus driven by a water flow (e.g. a hydro power station) exerting a rotary motion onto an axis. Such a force can be used 5 to drive an electric generator or a pump.
In order to be driven by a water flow this flow must be channelled to the water wheel in such a way that kinetic energy of the flow is captured and transformed into an axis driving momentum or vice versa.
Water wheels, under the water surface, equipped with paddles, are set into 10 motion preferably by an upward channelled water stream, capturing the majority of the water pressure in the top part of the rotor.
An advantage of a water wheel functioning entirely below water surface is that the full available water flow of a stream can be captured.
15 A disadvantage of a water wheel with paddles functioning below water surface would be that the wheel paddles counteract the flow as much as they are being driven by it. The resulting motion is nil.
Counter flow must therefore be minimized within the water-wheel in order for 20 it to have any efficiency in capturing kinetic energy and transforming the flow into axial motion.
Any counter-acting flow against the paddles can be suppressed by rendering the blades at the bottom part of a water wheel less effective than the blades at the top of the wheel.
25 The main flow must hit the paddles in a position whereby it can exert pressure to the paddles to rotate the wheel in one direction only.
The herein proposed method of neutralizing an adverse water flow consists of a rotor equipped with a paddle pivoting system in which the water flow turns the paddles into a flow-neutral nested position as much as possible.
1 037 527 2
When a water stream is driving the paddles at the top of the waterwheel this same force will rotate the paddles individually into a position (perpendicular to the main rotor axis) in which the kinetic force can be advantageously captured.
5 The paddles present in the bottom part of the wheel that turn in the opposite direction, against the main flow, will be folded away by the same stream, now adverse, nesting into a closed circle and thereby rendering these paddles ineffective or less effective.
10 A method of pivoting and nesting is expressed in Fig. 1.
In this example, a water wheel is depicted in a stream as a revolving round cage with a number of pivoting paddles centrally placed around its main axis. Around these individual axis paddles pivot each in a restricted arc, the position of the axis of the individual paddles being centrally placed in each paddle.
15 The result of the 90 degrees arc of pivoting over a centrally placed axis is that one end of the blades will be turned into an upright position and the other end in a downward pointing position when capturing the water flow, turning the blade as much as possible into a flow capturing position and pivoting back in a 90 degrees arc into a flow neutral circular nested position when not driven 20 forward by a water flow.
The kinetic water force driving the top part of the rotor is much more powerful than any adverse flow or drag present in the lower part of the rotor as the blades are folded into a position of minimal water resistance by means of the 25 same water pressure that drives the top part of the rotor.
This configuration will adopt water pressure from opposite directions, as in tidal streams. The paddles will adopt 3 positions under water pressure: flat and nested, upright (concave to water direction) or upright (concave to opposite 30 water direction) when turned a 180 degrees.
3 A rotor system with folding blades is described in patent WO 2004/107527. This differs from the design as described here as the vanes described in this patent are folding only one way into a nested position, the folding axis of each blade not central but towards the main axis of the rotor.
5 The arc to be described in order to take both the active and passive positions is therefore greater than the pivoting arc to be described by the blades in our system. Each time a blade is opened from its nested position and placed perpendicularly in the water stream a vibration is caused that will interrupt the motion and will contribute to wear on the rotor, especially the bearings.
10 Another disadvantage is that the described rotor in WO 2004/107527 is not adaptable to reversing water streams and therefore is not effective in tidal streams.
1037527

Claims (2)

1. Waterrad, geplaatst in een waterstroom, onder de waterspiegel, voorzien 5 van een aantal schoepen rond de rad-as, die elk over hun eigen in het midden van het schoepblad dwars geplaatste lengte-as individueel kunnen kantelen binnen een beperkte cirkel, door waterdruk kantelend naar een positie met de bovenzijde van het blad naar boven en de onderzijde naar onderen zodat zij als een hol gekromde schoep haaks op de richting van de waterdruk staan, en 90 10 graden terugkantelend naar een in een cirkel genestelde positie wanneer en zolang er geen waterdruk in de draairichting op de bladen wordt uitgeoefend. 2.1. Water wheel, placed in a water stream, below the water surface, provided with a number of blades about the wheel axis, each of which can tilt over their own longitudinal axis transversely placed in the middle of the blade blade within a limited circle, by water pressure tilting to a position with the top of the blade upwards and the bottom downwards so that they are like a concave curved blade perpendicular to the direction of the water pressure, and tilting 90 degrees back to a position nested in a circle when and as long as there is no water pressure in the direction of rotation is applied to the blades. 2. 15 Waterrad als beschreven in conclusie 1, waarbij één van de bladen ontbreekt of is uitgevoerd in een verkorte maat zodat er door deze schoep geen andere schoepen geraakt kunnen en het mogelijk is alle bladen 180 graden te laten draaien om de eigen dwars-as, hetgeen onder invloed van kerende waterdruk zal gebeuren. Het kantelen in een positie dwars op de stroom en terug, 20 genesteld in een cirkel, geschiedt dan verder zoals beschreven onder 1, maar in een tegengestelde richting. 3. Waterrad beschreven als in claim 1 of 2 voorzien van een gesloten kern. 25 4. Waterrad als beschreven als in conclusie 1,2 of 3 in combinatie met een deflecterende plaat of oppervlak aan de kant van de invallende waterdruk of aan beide zijden die de waterdruk in een opwaartse richting stuwt. 1037527Water wheel as described in claim 1, wherein one of the blades is missing or is in a shortened dimension so that no other blades can be hit by this blade and it is possible to have all blades rotate 180 degrees about their own transverse axis, will happen under the influence of reversing water pressure. The tilting in a position transverse to the stream and back, nestled in a circle, then takes place as described under 1, but in an opposite direction. 3. Water wheel described as in claim 1 or 2 with a closed core. 4. Water wheel as described in claim 1,2 or 3 in combination with a deflecting plate or surface on the side of the incident water pressure or on both sides which pushes the water pressure in an upward direction. 1037527
NL1037527A 2009-12-04 2009-12-04 Water-wheel with pivoting paddles. NL1037527C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1037527A NL1037527C2 (en) 2009-12-04 2009-12-04 Water-wheel with pivoting paddles.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1037527 2009-12-04
NL1037527A NL1037527C2 (en) 2009-12-04 2009-12-04 Water-wheel with pivoting paddles.

Publications (1)

Publication Number Publication Date
NL1037527C2 true NL1037527C2 (en) 2011-06-07

Family

ID=42314818

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1037527A NL1037527C2 (en) 2009-12-04 2009-12-04 Water-wheel with pivoting paddles.

Country Status (1)

Country Link
NL (1) NL1037527C2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383797A (en) * 1979-07-16 1983-05-17 Lee Edmund M Underwater turbine device with hinged collapsible blades
WO2004107527A2 (en) * 2003-05-27 2004-12-09 Ligman Eugene G Low head, dynamic variable pitch, submersible hydro generator
WO2009053924A2 (en) * 2007-10-25 2009-04-30 Cofra Editrice Di Logiudice Giuseppa Reaction diaphragm for fluido-dynamic machines and energy-producing plants obtained using such diaphragm
EP2128436A2 (en) * 2008-05-20 2009-12-02 Ventura Ribeiro de Matos, Antonio Turbine with articulated and retractable blades for harnessing energy from a moving fluid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383797A (en) * 1979-07-16 1983-05-17 Lee Edmund M Underwater turbine device with hinged collapsible blades
WO2004107527A2 (en) * 2003-05-27 2004-12-09 Ligman Eugene G Low head, dynamic variable pitch, submersible hydro generator
WO2009053924A2 (en) * 2007-10-25 2009-04-30 Cofra Editrice Di Logiudice Giuseppa Reaction diaphragm for fluido-dynamic machines and energy-producing plants obtained using such diaphragm
EP2128436A2 (en) * 2008-05-20 2009-12-02 Ventura Ribeiro de Matos, Antonio Turbine with articulated and retractable blades for harnessing energy from a moving fluid

Similar Documents

Publication Publication Date Title
US8076791B2 (en) Wind and water turbine
US7385302B2 (en) Wind turbine having variable pitch airfoils
EP2038979A2 (en) Wind turbine having variable pitch airfoils
US10145358B2 (en) Wind turbine, its use and a vane for use in the turbine
KR20120026477A (en) Hinged-blade cross-axis turbine for hydroelectric power generation
NL1037527C2 (en) Water-wheel with pivoting paddles.
CN201696216U (en) Lateral deviation regulating device of wind power generator
WO2009053415A3 (en) Water flow energy converter.
US20150211485A1 (en) Vertical-axis fluid turbine
WO2010037005A2 (en) Mobile wind turbine
EP3619422B1 (en) Flow turbine for hydro power plants
JP2014101756A (en) Wind power generation device
WO2006047739A2 (en) Device to give torque to generator using water
NL1032250C2 (en) Energy generator.
CN2921349Y (en) One-direction rotary turbine set capable of utilizing non-directional wind power sea wave tide power
CN102128120A (en) Water turbine
WO2003098036A1 (en) Orbital-rotating turbine and propeller
CN211524991U (en) Novel high-efficient fluid kinetic energy is caught device
CN211474327U (en) Fluid kinetic energy utilization device
US9291149B1 (en) Wind and water turbine with fins travelling along a guide track
KR20130046871A (en) Variable pitch control apparatus for wind turbine blade
CN202832976U (en) Eccentric variable pitch wind driven generator
EP3112674A1 (en) A wind turbine system for generating electrical energy on a ship, and a ship comprising a wind turbine system
WO2008147327A1 (en) A propeller for a wind motor
KR101227888B1 (en) Rotation apparatus for wind power generator having wing body structure activated by the eccentric center of gravity

Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee

Effective date: 20130701