FR2374531A1 - Wind driven power generator with aerodynamic blades - has springs countering centrifugal force to give automatic adjustment of pitch - Google Patents

Wind driven power generator with aerodynamic blades - has springs countering centrifugal force to give automatic adjustment of pitch

Info

Publication number
FR2374531A1
FR2374531A1 FR7639345A FR7639345A FR2374531A1 FR 2374531 A1 FR2374531 A1 FR 2374531A1 FR 7639345 A FR7639345 A FR 7639345A FR 7639345 A FR7639345 A FR 7639345A FR 2374531 A1 FR2374531 A1 FR 2374531A1
Authority
FR
France
Prior art keywords
springs
pitch
centrifugal force
countering
wind
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Withdrawn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
FR7639345A
Other languages
French (fr)
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.)
THIERRY CALIGE
Original Assignee
THIERRY CALIGE
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 THIERRY CALIGE filed Critical THIERRY CALIGE
Priority to FR7639345A priority Critical patent/FR2374531A1/en
Publication of FR2374531A1 publication Critical patent/FR2374531A1/en
Withdrawn legal-status Critical Current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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F05B2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • F05B2260/77—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism driven or triggered by centrifugal forces
    • 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
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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 impeller of a wind driven generator has two blades. Each is held so that it can rotate about its own axis and move radially in and out of the hub. Centrifugal force tends to pull the blade radially out. It is opposed by two springs so that the actual radial movement depends on the speed of rotation and thus on the wind speed. A fixed pin in the hub slides in a helical slot in the stem of the blade. The axial movement thus produces a rotation which depends on the wind speed. The pitch of the blade is thus automatically adjusted to wind conditions. This prevents overloading and gives a quick start at low wind speeds.
FR7639345A 1976-12-20 1976-12-20 Wind driven power generator with aerodynamic blades - has springs countering centrifugal force to give automatic adjustment of pitch Withdrawn FR2374531A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7639345A FR2374531A1 (en) 1976-12-20 1976-12-20 Wind driven power generator with aerodynamic blades - has springs countering centrifugal force to give automatic adjustment of pitch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639345A FR2374531A1 (en) 1976-12-20 1976-12-20 Wind driven power generator with aerodynamic blades - has springs countering centrifugal force to give automatic adjustment of pitch

Publications (1)

Publication Number Publication Date
FR2374531A1 true FR2374531A1 (en) 1978-07-13

Family

ID=9181642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639345A Withdrawn FR2374531A1 (en) 1976-12-20 1976-12-20 Wind driven power generator with aerodynamic blades - has springs countering centrifugal force to give automatic adjustment of pitch

Country Status (1)

Country Link
FR (1) FR2374531A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352633A (en) * 1980-04-25 1982-10-05 Tassen Devon E Windmill blade stalling and speed control device
FR2506853A1 (en) * 1981-06-02 1982-12-03 Duranteau Camille Wind motor vane pitch control - has flyweights moved by centrifugal force to vary blade pitch angle
EP0713008A1 (en) * 1994-11-18 1996-05-22 AlliedSignal Inc. Ram air turbine with secondary governor
GB2371837A (en) * 2000-12-19 2002-08-07 Pro Design Solutions Ltd Pitch adjustment mechanism
WO2004088131A1 (en) * 2003-04-01 2004-10-14 Energie Pge Inc. Self-regulating wind turbine
CN110030153A (en) * 2017-09-25 2019-07-19 青岛兰道尔空气动力工程有限公司 The automatic pitch-controlled system of generator, motor and engine
CN110030154A (en) * 2017-09-25 2019-07-19 青岛兰道尔空气动力工程有限公司 A kind of resilient movement steering system
CN113958462A (en) * 2021-10-11 2022-01-21 西安航空职业技术学院 Wind driven generator blade detection device and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352633A (en) * 1980-04-25 1982-10-05 Tassen Devon E Windmill blade stalling and speed control device
FR2506853A1 (en) * 1981-06-02 1982-12-03 Duranteau Camille Wind motor vane pitch control - has flyweights moved by centrifugal force to vary blade pitch angle
EP0713008A1 (en) * 1994-11-18 1996-05-22 AlliedSignal Inc. Ram air turbine with secondary governor
GB2371837A (en) * 2000-12-19 2002-08-07 Pro Design Solutions Ltd Pitch adjustment mechanism
GB2371837B (en) * 2000-12-19 2004-06-30 Pro Design Solutions Ltd Pitch adjustment mechanism
WO2004088131A1 (en) * 2003-04-01 2004-10-14 Energie Pge Inc. Self-regulating wind turbine
CN110030153A (en) * 2017-09-25 2019-07-19 青岛兰道尔空气动力工程有限公司 The automatic pitch-controlled system of generator, motor and engine
CN110030154A (en) * 2017-09-25 2019-07-19 青岛兰道尔空气动力工程有限公司 A kind of resilient movement steering system
CN113958462A (en) * 2021-10-11 2022-01-21 西安航空职业技术学院 Wind driven generator blade detection device and method

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Legal Events

Date Code Title Description
ST Notification of lapse