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 
  • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
• • 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
  • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
  • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
  • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
• • 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 
  • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
• • 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
  • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
  • F03D9/20—Wind motors characterised by the driven apparatus
  • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
• • 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

Definitions

• electric power generations can be classified into hydroelectric power generation using head drop of water, thermal power generation which obtains electric power by means of combustion of fuel, nuclear power generation using nuclear fission and wind power generation using wind.
• thermal power generation which obtains electric power by means of combustion of fuel
• nuclear power generation using nuclear fission and wind power generation using wind.
• a proper power generator is established considering season and geographic influence to obtain electric power.
• wind power generator produces electric power utilizing wind that is a kind of natural phenomena, and has advantages in that installation cost is inexpensive unlike other power generating plants and power generation can be performed individually in the unit of home or local community.
• An example of conventional wind power generating apparatus is shown in Fig. 13.
• the conventional wind power generating apparatus 100 includes wings 101 that rotate by the wind, a generator 103 for generating electric power from the rotational force of the wings 101 and a support frame 104 for supporting both the generator 103 and the rotary wings 101.
• the rotary wings 101 are extended long from the rotary shaft 102. To this end, when the rotary wings 101 rotate by blowing wind, the rear side of the rotary wings 101 is subject to a large resistance or load and thus the rotational force of the rotary wings 101 may be cancelled. As a result, there be caused a problem that use efficiency of wind power is low.
• this structure cancels a large portion of rotation power.
• the present invention has been made to solve the foregoing problems and it is therefore an object of the present invention to provide a wind power generator comprising a plurality of rotary wings, which have radii of rotation different from one another and rotate separately according to the direction of the wind.
• the wind power generating apparatus of the invention can prevent canceling of rotation power resulting from load and resistance in the integrally elongated rotary wings in relation to the wind as well as accelerate the wind via accelerator covers and distribute the wind to rotary wings to obtain high efficient rotation power.
• the invention elastically absorbs impact on the rotary wings and support the rotary wings so that the rotary wings can gradually rotate according to the intensity of the wind in order to prevent damage of the wind power generating apparatus resulting from blast.
• the wind power generating apparatus of the invention can enhance the efficiency of wind power generation as well as improve stability and operation reliability.
• each the first and second accelerator covers 20 and 21 preferably comprises tapered circular tubes 23 which are arranged in a pyramidal configuration to guide the wind respectively to the rotary wings 11 a to 14a.
• Fig. 1 is a perspective view of a wind power generating apparatus of the invention
• Fig. 2 is an exploded perspective view of the wind power generating apparatus of the invention
• Fig. 3 is a partially expanded plan view of Fig. 2;
• Fig. 4 is a transmission unit of the wind power generating apparatus of the invention.
• FIG. 5 illustrates the structure of safety means of the wind power generating apparatus of the invention
• Figs. 6A and 6B are sectional views taken along a line A-A in Fig. 5 illustrating the operation of a rotor
• Fig. 7 is a partial expanded perspective view of a rotary wing of the wind power generating apparatus of the invention
• Fig. 12 is a perspective view illustrating the operation of the wind power generating apparatus of the invention.
• Second rotary shaft 12a Second rotary wing
• Second accelerator cover 22 Support member
• Support piece 32 Fixing tube
• Transmission unit housing 51 First drive gear
• Fig. 1 is a perspective view of a wind power generating apparatus of the invention
• Fig. 2 is an exploded perspective view of the wind power generating apparatus of the invention
• Fig. 3 is a partially expanded plan view of Fig. 2
• Fig. 4 is a transmission unit of the wind power generating apparatus of the invention
• Fig. 5 illustrates the structure of safety means of the wind power generating apparatus of the invention
• Figs. 6A and 6B are sectional views taken along a line A-A in Fig. 5 illustrating the operation of a rotor
• Fig. 7 is a partial expanded perspective view of a rotary wing of the wind power generating apparatus of the invention
• Fig. 8 is a sectional view taken along a line B-B in Fig.
• the first to fourth rotary shafts 11 to 14 are supported by bearings B while the first rotary shaft 11 is received rotatably into the second rotary shaft 12 and the fourth rotary shaft 14 is received rotatably into the third rotary shaft 13.
• Each of the first and second accelerator covers 20 and 21 has tapered circular tubes 23 which are arranged in a conical configuration to accelerate and guide the wind to the respective wing pieces 16 in the first and second rotary wings 11a and 12a and the third and fourth rotary wings 13a and 14a.
• the circular tubes 23 are fixed to conical support members 22.
• the transmission unit 50 transmits the rotation power of the drive gears 51 to 54 which rotate in their own respective rates to the shaft 61 so that the generator 60 can generate electric power.
• the wind is accelerated while passing through the first accelerator cover 20 and the accelerated wind is distributed by the first accelerator cover 20.
• the wind After being slowed down while passing through the first and second rotary wings 11a and 12a, the wind is introduced into the second accelerator cover 21, where the wind is accelerated again according to the operation of the second accelerator cover 21 like that of the first accelerator cover 20.
• the wind accelerated while passing through the second accelerator cover 21 is concentrated to the wing pieces 16 in the third and fourth rotary wings 13a and 14a to turn the same.
• the gears are connected as above to output the rotation power of the first to fourth rotary shafts 11 to 14, which rotate separately, at predetermined deceleration ratios, and the generator 60 is driven 60 via the bevel gear 62 connecting between the driven shaft 59 and the shaft 61.
• the rotation speed of the first to fourth rotary wings 11a to 14a increases in a strong wind of high velocity such as storm, in which the wind may particularly impact the wing pieces 16 which are under direct influence of the wind.
• the support means 30 elastically absorb impact on the wing pieces 16 according to the intensity of impact.
• the support means 30 elastically support the wing pieces 16 so that the wing pieces 16 can gradually rotate in a direction parallel to the direction of the wind to utilize the maximum quantity of wind power.
• the safety means flexibly adjust the angle of the wing pieces 16.
• the movable rod 35 hinged on the extension piece 15a of the wing spoke 15 is cooperatively moved laterally, in which the first spring 37 fitted around the movable rod 35 is compressed and drawn via a hinge point 34 to elastically absorb movement of the wing piece 16 and the wing spoke 15.
• the present invention accelerates the velocity of the wind via the accelerator covers as well as distributes the accelerated wind to the wing pieces in order to effectively turn the rotary wings having the respective radii of rotation different from one another.
• the rotary wings rotate separately according to the direction of the wind to reduce load and resistance in relation to the wind, thereby maximizing rotation power and enhancing the efficiency of power generation.

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• 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)
• Power Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Wind Motors (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Citations (3)

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• 2002
  • 2002-05-31 KR KR1020020030577A patent/KR100557716B1/ko not_active Expired - Fee Related
  • 2002-12-28 US US10/513,771 patent/US7044713B2/en not_active Expired - Lifetime
  • 2002-12-28 JP JP2004509271A patent/JP4125284B2/ja not_active Expired - Fee Related
  • 2002-12-28 CN CNB028289781A patent/CN1328499C/zh not_active Expired - Fee Related
  • 2002-12-28 WO PCT/KR2002/002477 patent/WO2003102410A1/en not_active Ceased
  • 2002-12-28 AU AU2002359064A patent/AU2002359064A1/en not_active Abandoned

Patent Citations (3)

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