FR2300233A1 - Windmill with variable pitch blades - pitch of blade is automatically reduced as wind force increases - Google Patents

Windmill with variable pitch blades - pitch of blade is automatically reduced as wind force increases

Info

Publication number
FR2300233A1
FR2300233A1 FR7503724A FR7503724A FR2300233A1 FR 2300233 A1 FR2300233 A1 FR 2300233A1 FR 7503724 A FR7503724 A FR 7503724A FR 7503724 A FR7503724 A FR 7503724A FR 2300233 A1 FR2300233 A1 FR 2300233A1
Authority
FR
France
Prior art keywords
blade
pitch
windmill
bearings
wind force
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
FR7503724A
Other languages
French (fr)
Other versions
FR2300233B3 (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 FR7503724A priority Critical patent/FR2300233A1/en
Publication of FR2300233A1 publication Critical patent/FR2300233A1/en
Application granted granted Critical
Publication of FR2300233B3 publication Critical patent/FR2300233B3/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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • 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

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

A windmill has blades (1, 2) mounted in bearings in triangular frames (7) (8), so that they can rotate about a radial axis. The inner ends of the frame (7, 8) are mounted in bearings (10) at the ends of a T-shaped member which can slide axially against a spring in the rotor shaft (12). Each blade has an arm provided with a ball joint (23, 25) which connects it to the collar (26) which is keyed to the shaft (12). When the rotor speed increases with increasing wind force the angle (B) of inclination of the blade axes decreases due to centrifugal force and the bearings (10) move outwards against the spring, causing the blade pitch to reduce since the rods (30, 31) exert a force on the blade arms.
FR7503724A 1975-02-06 1975-02-06 Windmill with variable pitch blades - pitch of blade is automatically reduced as wind force increases Granted FR2300233A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7503724A FR2300233A1 (en) 1975-02-06 1975-02-06 Windmill with variable pitch blades - pitch of blade is automatically reduced as wind force increases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7503724A FR2300233A1 (en) 1975-02-06 1975-02-06 Windmill with variable pitch blades - pitch of blade is automatically reduced as wind force increases

Publications (2)

Publication Number Publication Date
FR2300233A1 true FR2300233A1 (en) 1976-09-03
FR2300233B3 FR2300233B3 (en) 1977-10-21

Family

ID=9150858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503724A Granted FR2300233A1 (en) 1975-02-06 1975-02-06 Windmill with variable pitch blades - pitch of blade is automatically reduced as wind force increases

Country Status (1)

Country Link
FR (1) FR2300233A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183715A (en) * 1978-02-01 1980-01-15 First National Bank Of Lubbock Adjustable vane windmills
US4201514A (en) * 1976-12-04 1980-05-06 Ulrich Huetter Wind turbine
US4310284A (en) * 1979-08-27 1982-01-12 Randolph Arthur J Automatically controlled wind propeller and tower shadow eliminator
FR2495696A1 (en) * 1980-12-04 1982-06-11 Collin Yvon Blade positioning hub for wind turbine - has sliding sleeve on hub with guy rods to fold and lock blades
US4348154A (en) * 1978-02-01 1982-09-07 Wind Engineering Corporation Adjustable vane windmills
US4349315A (en) * 1978-02-01 1982-09-14 Wind Engineering Corporation Adjustable vane windmills
US5203672A (en) * 1991-07-22 1993-04-20 Mariah Electric Corporation Wind turbine with stationary vertical support tower and airflow-directing shell
CN101021207B (en) * 2007-03-13 2010-05-19 西安理工大学 Digital fly wheel device for wind-oriented power generation and speed regulation
GB2494924A (en) * 2011-09-26 2013-03-27 Sway Turbine As Blade connection for wind turbine
RU2788777C1 (en) * 2022-05-23 2023-01-24 Общество с ограниченной ответственностью "Тюльганский электро механический завод" Wind turbine speed limiter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201514A (en) * 1976-12-04 1980-05-06 Ulrich Huetter Wind turbine
US4183715A (en) * 1978-02-01 1980-01-15 First National Bank Of Lubbock Adjustable vane windmills
US4348154A (en) * 1978-02-01 1982-09-07 Wind Engineering Corporation Adjustable vane windmills
US4349315A (en) * 1978-02-01 1982-09-14 Wind Engineering Corporation Adjustable vane windmills
US4310284A (en) * 1979-08-27 1982-01-12 Randolph Arthur J Automatically controlled wind propeller and tower shadow eliminator
FR2495696A1 (en) * 1980-12-04 1982-06-11 Collin Yvon Blade positioning hub for wind turbine - has sliding sleeve on hub with guy rods to fold and lock blades
US5203672A (en) * 1991-07-22 1993-04-20 Mariah Electric Corporation Wind turbine with stationary vertical support tower and airflow-directing shell
CN101021207B (en) * 2007-03-13 2010-05-19 西安理工大学 Digital fly wheel device for wind-oriented power generation and speed regulation
GB2494924A (en) * 2011-09-26 2013-03-27 Sway Turbine As Blade connection for wind turbine
GB2494924B (en) * 2011-09-26 2014-08-13 Sway Turbine As Blade connection for wind turbine
RU2788777C1 (en) * 2022-05-23 2023-01-24 Общество с ограниченной ответственностью "Тюльганский электро механический завод" Wind turbine speed limiter

Also Published As

Publication number Publication date
FR2300233B3 (en) 1977-10-21

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