JPS57191475A - Pitch controlling mechanism for wind power generator - Google Patents

Pitch controlling mechanism for wind power generator

Info

Publication number
JPS57191475A
JPS57191475A JP7662881A JP7662881A JPS57191475A JP S57191475 A JPS57191475 A JP S57191475A JP 7662881 A JP7662881 A JP 7662881A JP 7662881 A JP7662881 A JP 7662881A JP S57191475 A JPS57191475 A JP S57191475A
Authority
JP
Japan
Prior art keywords
counterweight
pitch angle
slider
force
blades
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.)
Pending
Application number
JP7662881A
Other languages
Japanese (ja)
Inventor
Shinji Sonoda
Masayuki Watabiki
Kazuaki Yamamoto
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7662881A priority Critical patent/JPS57191475A/en
Publication of JPS57191475A publication Critical patent/JPS57191475A/en
Pending 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
    • 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

Abstract

PURPOSE:To facilitate adjustment of control force to suit the wind force and to enable to vary the pitch angle over a wide range, by disposing a centrifugal counterweight or the like in a guide cylinder, and interconnecting the counterweight with a spring-load slider by the intermediary of an arm. CONSTITUTION:When the speed of rotation of a wind turbine becomes higher than a certain value, a counterweight 13 is moved radially outwards along a guide cylinder 12 and an arm 14 is turned in a direction B, so that a slider 17 is urged toward the top of a turning shaft 6 against the force of a compression spring 18. Resultantly, rod 19 connected to the slider 17 in a unitary manner is pulled in a direction D and blades 1 are turned around respective blade shafts 7, so that their pitch angle is varied. Thus, the pitch angle of the blades can be varied.
JP7662881A 1981-05-22 1981-05-22 Pitch controlling mechanism for wind power generator Pending JPS57191475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7662881A JPS57191475A (en) 1981-05-22 1981-05-22 Pitch controlling mechanism for wind power generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7662881A JPS57191475A (en) 1981-05-22 1981-05-22 Pitch controlling mechanism for wind power generator

Publications (1)

Publication Number Publication Date
JPS57191475A true JPS57191475A (en) 1982-11-25

Family

ID=13610625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7662881A Pending JPS57191475A (en) 1981-05-22 1981-05-22 Pitch controlling mechanism for wind power generator

Country Status (1)

Country Link
JP (1) JPS57191475A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102042176A (en) * 2009-10-15 2011-05-04 梁启明 Constant speed wind driven generator with self-adjusting blade angle
WO2012146141A1 (en) * 2011-04-28 2012-11-01 广州红鹰能源科技有限公司 Novel unassisted varibale-pitch wind generator
JP2013015019A (en) * 2011-06-30 2013-01-24 Sonkyo Energy Sl Device for adjusting blade pitch of wind turbine generator
CN103016259A (en) * 2012-11-06 2013-04-03 刘文普 Wind power generator wind wheel capable of automatically changing pitch angle of fan blade according to wind power
JP2014181706A (en) * 2013-03-15 2014-09-29 Frontier Wind Llc Determination on load using positions of various sensors
JP2014181704A (en) * 2013-03-15 2014-09-29 Frontier Wind Llc Blade balancing
CN104314758A (en) * 2014-10-16 2015-01-28 张成革 Centrifuging and paddle varying device of wind driven generator
CN104696165A (en) * 2015-03-06 2015-06-10 刘湘威 Wing expansion vibration reduction type vertical shaft wind turbine generator system
US10598159B2 (en) 2016-05-06 2020-03-24 General Electric Company Wind turbine bearings

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860209A (en) * 1971-11-30 1973-08-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860209A (en) * 1971-11-30 1973-08-23

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102042176A (en) * 2009-10-15 2011-05-04 梁启明 Constant speed wind driven generator with self-adjusting blade angle
WO2012146141A1 (en) * 2011-04-28 2012-11-01 广州红鹰能源科技有限公司 Novel unassisted varibale-pitch wind generator
JP2013015019A (en) * 2011-06-30 2013-01-24 Sonkyo Energy Sl Device for adjusting blade pitch of wind turbine generator
CN103016259A (en) * 2012-11-06 2013-04-03 刘文普 Wind power generator wind wheel capable of automatically changing pitch angle of fan blade according to wind power
JP2014181706A (en) * 2013-03-15 2014-09-29 Frontier Wind Llc Determination on load using positions of various sensors
JP2014181704A (en) * 2013-03-15 2014-09-29 Frontier Wind Llc Blade balancing
CN104314758A (en) * 2014-10-16 2015-01-28 张成革 Centrifuging and paddle varying device of wind driven generator
CN104696165A (en) * 2015-03-06 2015-06-10 刘湘威 Wing expansion vibration reduction type vertical shaft wind turbine generator system
US10598159B2 (en) 2016-05-06 2020-03-24 General Electric Company Wind turbine bearings

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