FR2308803A1 - Wind driven generator with adjustable blade span - has blades built from standard aerofoil segments and forming two rotors - Google Patents

Wind driven generator with adjustable blade span - has blades built from standard aerofoil segments and forming two rotors

Info

Publication number
FR2308803A1
FR2308803A1 FR7512865A FR7512865A FR2308803A1 FR 2308803 A1 FR2308803 A1 FR 2308803A1 FR 7512865 A FR7512865 A FR 7512865A FR 7512865 A FR7512865 A FR 7512865A FR 2308803 A1 FR2308803 A1 FR 2308803A1
Authority
FR
France
Prior art keywords
rotors
driven generator
wind driven
forming
adjustable blade
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.)
Granted
Application number
FR7512865A
Other languages
French (fr)
Other versions
FR2308803B3 (en
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 FR7512865A priority Critical patent/FR2308803A1/en
Publication of FR2308803A1 publication Critical patent/FR2308803A1/en
Application granted granted Critical
Publication of FR2308803B3 publication Critical patent/FR2308803B3/fr
Granted legal-status Critical Current

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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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)
  • 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)

Abstract

The wind driven generator has a fixed vertical shaft (1) mounted in a concrete base (3). A square section tube (2) mounted on bearings (4) carries two rotors mounted one above the other. Each rotor consists of four equally spaced arms (5) built up from aero-foil segments (6). The outer ends of the arms (5) are supported by bracing wires (7). All aero-foil segments (6) are identical and can be assembled to form arms (5) of any desired length. The shape and attitude of fixing is such that the rotors rotate in the same direction irrespective of the wind direction. The machine utilising the power is driven by a belt from the pulley (9).
FR7512865A 1975-04-24 1975-04-24 Wind driven generator with adjustable blade span - has blades built from standard aerofoil segments and forming two rotors Granted FR2308803A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7512865A FR2308803A1 (en) 1975-04-24 1975-04-24 Wind driven generator with adjustable blade span - has blades built from standard aerofoil segments and forming two rotors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7512865A FR2308803A1 (en) 1975-04-24 1975-04-24 Wind driven generator with adjustable blade span - has blades built from standard aerofoil segments and forming two rotors

Publications (2)

Publication Number Publication Date
FR2308803A1 true FR2308803A1 (en) 1976-11-19
FR2308803B3 FR2308803B3 (en) 1978-11-10

Family

ID=9154446

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512865A Granted FR2308803A1 (en) 1975-04-24 1975-04-24 Wind driven generator with adjustable blade span - has blades built from standard aerofoil segments and forming two rotors

Country Status (1)

Country Link
FR (1) FR2308803A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234289A (en) * 1978-09-05 1980-11-18 Lebost Barry Alan Fluid turbine
US4650403A (en) * 1986-03-06 1987-03-17 Joseph Takacs Windmill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234289A (en) * 1978-09-05 1980-11-18 Lebost Barry Alan Fluid turbine
US4650403A (en) * 1986-03-06 1987-03-17 Joseph Takacs Windmill

Also Published As

Publication number Publication date
FR2308803B3 (en) 1978-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse