DE19845907A1 - Wind power machine with axial rotors has rotor nave with aperture on front side and is hollow so that air can be sucked through it and through centrifugal force can be emitted through - Google Patents

Wind power machine with axial rotors has rotor nave with aperture on front side and is hollow so that air can be sucked through it and through centrifugal force can be emitted through

Info

Publication number
DE19845907A1
DE19845907A1 DE19845907A DE19845907A DE19845907A1 DE 19845907 A1 DE19845907 A1 DE 19845907A1 DE 19845907 A DE19845907 A DE 19845907A DE 19845907 A DE19845907 A DE 19845907A DE 19845907 A1 DE19845907 A1 DE 19845907A1
Authority
DE
Germany
Prior art keywords
rotor
air
hollow
sucked
nave
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE19845907A
Other languages
German (de)
Inventor
Janine Seemann
Christina Seemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19845907A priority Critical patent/DE19845907A1/en
Priority to DE29916080U priority patent/DE29916080U1/en
Publication of DE19845907A1 publication Critical patent/DE19845907A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/05—Transmission of mechanical power using hollow exhausting blades
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

A generator (1) is driven by a shaft (2) of an axial rotor with a rotor nave (3) by wind force, which acts on the rotor blades (5). Efficiency is improved by outwardly flowing air over the arched surfaces (7) of the rotor blades (5). Air is sucked into the rotor nave (3) via an aperture (4). Rotation is produced by centrifugal force. The air in the hollow rotor blades is thus accelerated and is emitted via an aperture (8) on the rotor blade front edge over the arched surfaces at high speed.

Description

Die Erfindung betrifft eine Vorrichtung zur Steigerung des Wirkungsgrades bei Windkraftwerken mit Axialrotoren.The invention relates to a device for increasing the efficiency Wind power plants with axial rotors.

Windkraftwerke mit Axialrotoren sind bekannt.Wind power plants with axial rotors are known.

Um eine hohe Leistung und ein grosses Drehmoment erzeugen zu können, besitzen Windkraftwerke mit Axialrotoren grosse Abmessungen.To be able to generate a high output and a large torque Wind power plants with large axial rotors.

Diese nehmen dann viel Platz und Material in Anspruch.These then take up a lot of space and material.

Die Drehzahl bei grossen Axialrotoren ist sehr gering.The speed of large axial rotors is very low.

Die Erfindung verbessert den Wirkungsgrad dieser Anlagen wesentlich, so dass entweder die Leistung erhöht bzw. die Abmessungen verkleinert werden. The invention significantly improves the efficiency of these systems, so that either Performance increased or the dimensions reduced.  

Beispiel einer PatentanmeldungExample of a patent application

Das Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.The embodiment of the invention is shown in the drawing and is in Described in more detail below.

Es zeigtIt shows

Fig. 1 Den Aufbau eines Axialrotors eines leistungsverbesserten Windkraftwerkes. Fig. 1 The construction of an axial rotor of a performance-improved wind power plant.

Der Generator 1 wird durch eine Welle 2 von einem Axialrotor mit einer Rotornabe 3 durch Windkraft, die auf die Rotorblätter 5 wirkt, angetrieben.The generator 1 is driven by a shaft 2 from an axial rotor with a rotor hub 3 by wind force which acts on the rotor blades 5 .

Der Wirkungsgrad wird durch ausströmende Luft über die gewölbte Oberfläche 7 der Rotorblätter 5 verbessert.The efficiency is improved by air flowing out over the curved surface 7 of the rotor blades 5 .

Die Luft wird über eine Öffnung 4 in der Rotornabe 3 angesaugt.The air is sucked in through an opening 4 in the rotor hub 3 .

Durch die Drehung entsteht Zentrifugalkraft.Centrifugal force arises from the rotation.

Die Luft in den hohlen Rotorblättern wird dadurch beschleunigt, und über eine Öffnung 8 an der Rotorblattvorderkante über die gewölbte Oberfläche mit hoher Geschwindigkeit abgegeben.The air in the hollow rotor blades is thereby accelerated and discharged at high speed via an opening 8 on the front edge of the rotor blade over the curved surface.

Dadurch entsteht ein grösserer Unterdruck durch ein verbessertes Grenzschichtverhalten. Die Stromung reisst auch bei grossen Steigungswinkeln der Rotorblätter nicht ab.This creates a greater vacuum due to improved boundary layer behavior. The flow does not stop even with large pitch angles of the rotor blades.

Am Ende der Rotorblätter befinden sich Flügelstummel, welche die Turbulenzen die durch den Wirbelzopf entstehen, verringern.At the end of the rotor blades are stub wings, which the turbulence through the vertebrae arise, reduce.

Claims (3)

1. Windkraftwerke mit Axialrotoren dadurch gekennzeichnet, dass die Rotornabe eine Öffnung an der Vorderseite besitzt und hohl ist, damit Luft durch diese angesaugt werden kann und durch die Zentrifugalkraft über ebenfalls hohle Rotorblätter durch Öffnungen an deren Vorderkante mit hoher Geschwindigkeit über eine gewölbte Oberfläche abgegeben werden kann.1. Wind power plants with axial rotors, characterized in that the rotor hub has an opening at the front and is hollow so that air can be sucked in through it and are released by the centrifugal force via likewise hollow rotor blades through openings at the front edge thereof at high speed over a curved surface can. 2. Sich an den Rotorblattenden Flügelstummel befinden, die die Turbulenzen des Wirbelzopfes verringern.2. Are on the rotor blade ends stub, which the turbulence of the Reduce vertebrae. 3. Sich diese Technologie auch für Rotoren und Propeller anderer Aggregate und Transportsysteme (Flugzeugpropeller, Hubschrauberrotoren, Schiffspropeller [statt Luft Wasser] usw.) verwenden lässt.3. This technology also for rotors and propellers of other units and Transport systems (aircraft propellers, helicopter rotors, ship propellers [instead Air water] etc.).
DE19845907A 1998-10-06 1998-10-06 Wind power machine with axial rotors has rotor nave with aperture on front side and is hollow so that air can be sucked through it and through centrifugal force can be emitted through Withdrawn DE19845907A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19845907A DE19845907A1 (en) 1998-10-06 1998-10-06 Wind power machine with axial rotors has rotor nave with aperture on front side and is hollow so that air can be sucked through it and through centrifugal force can be emitted through
DE29916080U DE29916080U1 (en) 1998-10-06 1999-09-14 Device for increasing the efficiency in wind power plants with axial rotors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19845907A DE19845907A1 (en) 1998-10-06 1998-10-06 Wind power machine with axial rotors has rotor nave with aperture on front side and is hollow so that air can be sucked through it and through centrifugal force can be emitted through

Publications (1)

Publication Number Publication Date
DE19845907A1 true DE19845907A1 (en) 2000-04-13

Family

ID=7883517

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19845907A Withdrawn DE19845907A1 (en) 1998-10-06 1998-10-06 Wind power machine with axial rotors has rotor nave with aperture on front side and is hollow so that air can be sucked through it and through centrifugal force can be emitted through
DE29916080U Expired - Lifetime DE29916080U1 (en) 1998-10-06 1999-09-14 Device for increasing the efficiency in wind power plants with axial rotors

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE29916080U Expired - Lifetime DE29916080U1 (en) 1998-10-06 1999-09-14 Device for increasing the efficiency in wind power plants with axial rotors

Country Status (1)

Country Link
DE (2) DE19845907A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016513A1 (en) * 2000-04-03 2001-10-11 Eugen Radtke Centrifugal wind power wheel for optimized utilization of energy of wind, has direct or indirect utilization of centrifugal force for displacement/movement of solid/fluid materials and for change of center of gravity
DE10105864A1 (en) * 2001-02-06 2002-08-14 Eugen Radtke Centrifugal wind-powered energy plant has weight lifted via centrifugal force dropped for providing rotary torque which can support rotor rotation
CN102556345A (en) * 2012-01-18 2012-07-11 朱晓义 Aircraft power device
CN102589837A (en) * 2012-02-09 2012-07-18 朱晓义 Large fluid pressure wind tunnel
US20130315733A1 (en) * 2011-11-16 2013-11-28 James E. Smith Passive thrust enhancement using circulation control
US20140154052A1 (en) * 2008-11-20 2014-06-05 David Wenzhong Gao Wind aeolipile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013101536A1 (en) 2013-02-15 2014-08-21 Deutsches Zentrum für Luft- und Raumfahrt e.V. Rotor blade for axial rotor that is utilized in e.g. helicopter, has perforated suction region provided with circular suction openings in flow surface, where suction openings open into hollow chamber for suction of barrier layer of fluid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE842330C (en) * 1949-01-01 1952-06-26 Helmut Dipl-Ing Voigt Wind power plant
DE900079C (en) * 1943-10-19 1953-12-17 Jean Edouard Andreau windmill
CH564687A5 (en) * 1973-04-12 1975-07-31 Vadas Jmre Wind power driven rotor with hollow blade - has air flow diverting channel on side facing wind
DE4030559C2 (en) * 1990-09-27 1992-11-12 Werner Dr.Med. 4330 Muelheim De Schubert

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900079C (en) * 1943-10-19 1953-12-17 Jean Edouard Andreau windmill
DE842330C (en) * 1949-01-01 1952-06-26 Helmut Dipl-Ing Voigt Wind power plant
CH564687A5 (en) * 1973-04-12 1975-07-31 Vadas Jmre Wind power driven rotor with hollow blade - has air flow diverting channel on side facing wind
DE4030559C2 (en) * 1990-09-27 1992-11-12 Werner Dr.Med. 4330 Muelheim De Schubert

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016513A1 (en) * 2000-04-03 2001-10-11 Eugen Radtke Centrifugal wind power wheel for optimized utilization of energy of wind, has direct or indirect utilization of centrifugal force for displacement/movement of solid/fluid materials and for change of center of gravity
DE10105864A1 (en) * 2001-02-06 2002-08-14 Eugen Radtke Centrifugal wind-powered energy plant has weight lifted via centrifugal force dropped for providing rotary torque which can support rotor rotation
US20140154052A1 (en) * 2008-11-20 2014-06-05 David Wenzhong Gao Wind aeolipile
US9765755B2 (en) * 2008-11-20 2017-09-19 David Wenzhong Gao Wind aeolipile
US11619204B2 (en) 2008-11-20 2023-04-04 Tennessee Technological University Wind aeolipile
US20130315733A1 (en) * 2011-11-16 2013-11-28 James E. Smith Passive thrust enhancement using circulation control
CN102556345A (en) * 2012-01-18 2012-07-11 朱晓义 Aircraft power device
CN102589837A (en) * 2012-02-09 2012-07-18 朱晓义 Large fluid pressure wind tunnel
CN102589837B (en) * 2012-02-09 2016-05-18 朱晓义 large fluid pressure wind tunnel

Also Published As

Publication number Publication date
DE29916080U1 (en) 2000-08-10

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee