WO2005064153A1 - Eolienne - Google Patents

Eolienne Download PDF

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Publication number
WO2005064153A1
WO2005064153A1 PCT/JP2004/019816 JP2004019816W WO2005064153A1 WO 2005064153 A1 WO2005064153 A1 WO 2005064153A1 JP 2004019816 W JP2004019816 W JP 2004019816W WO 2005064153 A1 WO2005064153 A1 WO 2005064153A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind
wind turbine
fan
centrifugal impeller
generator according
Prior art date
Application number
PCT/JP2004/019816
Other languages
English (en)
Japanese (ja)
Inventor
Hironari Ogata
Kazunori Matsumoto
Original Assignee
Matsushita Electric Industrial Co., 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 Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to CA002526399A priority Critical patent/CA2526399A1/fr
Publication of WO2005064153A1 publication Critical patent/WO2005064153A1/fr

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
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/213—Rotors for wind turbines with vertical axis of the Savonius type
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/215—Rotors for wind turbines with vertical axis of the panemone or "vehicle ventilator" type
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • F05B2270/1011—Purpose of the control system to control rotational speed (n) to prevent overspeed
    • 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
    • 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

  • the present invention relates to a wind power generation device using natural energy. More specifically, the present invention relates to a wind turbine protection device in a strong wind. Background art
  • a variable pitch wind power generation device in which a pitch of a rotor blade is changed according to a wind pressure applied to the windmill is known.
  • wind turbines suspended from a pivot in accordance with the wind pressure received by the wind turbine, and a suspended fixed-pitch lateral displacement wind power generator in which the generator swings.
  • One of these methods uses a direction plate and an output adjustment spring attached to it to displace the windmill speed according to the wind pressure so that almost constant wind is applied to the windmill regardless of the wind speed. It is to let.
  • the wind turbines are displaced just beside the direction of the wind to maintain the position with the least resistance to protect the wind turbine.
  • the wind turbine is a thermodynamical generator
  • a windmill that rotates by catching the natural wind A wind power generator having a storage battery that converts and stores energy into energy, a centrifugal impeller provided coaxially with a rotation axis of the wind turbine, and the centrifugal impeller has a casing that does not catch natural wind. Is formed. Brief Description of Drawings
  • FIG. 1 is a perspective view of the overall outline of a wind turbine generator according to one embodiment of the present invention.
  • FIG. 2 is a perspective view of a fan component of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 3A is a front view of a wind turbine generator according to one embodiment of the present invention.
  • FIG. 3B is a partial cross-sectional view of the multi-blade impeller in front of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 3C is a partial cross-sectional view of the windmill in front of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 4 is a diagram showing a characteristic table of the natural wind speed and the rotation speed of the windmill and the fan of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 5 is a general perspective view of a propeller fan windmill of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 6 is a diagram showing a cooling part of the bearing device of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 7 is a diagram showing a configuration portion of a tongue portion of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 8 is an overall front view of the exhaust heat ventilation passage of the wind turbine generator according to one embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION the wind speed of natural wind is strong. For example, when the wind speed during a typhoon is 60 mZs, the windmill rotates at high speed due to strong wind. As a result, the strength of the wind turbine blades repeats mechanical vibration and pulsation at high speeds, resulting in blade material deterioration and cracking. Finally, there is a problem that the blade may be damaged if the internal stress of the material exceeds the breaking point.
  • Such a conventional method has a problem that the structure is complicated, the equipment cost is high, and the complicated structure requires a large number of man-hours, such as requiring regular maintenance to secure functions.
  • the electromagnetic brake is applied to brake the battery, if there is a failure in the battery, there is also a problem with certainty that the wind turbine cannot be stopped.
  • the present invention is to solve such a conventional problem, and an object of the present invention is to provide a simple, reliable and inexpensive wind turbine protection device having a long maintenance cycle.
  • FIG. 1 is a perspective view of the overall outline of a wind turbine generator according to one embodiment of the present invention.
  • FIG. 2 is a perspective view of a fan component of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 3A shows the correctness of a wind power generator according to one embodiment of the present invention.
  • FIG. 3B is a partial cross-sectional view of the multi-blade impeller in front of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 3C is a partial cross-sectional view of a windmill in front of a wind turbine generator according to one embodiment of the present invention.
  • FIG. 4 is a characteristic table of the natural wind speed and the rotation speed of the windmill and the fan of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 5 is an overall schematic perspective view of a propeller fan windmill of a wind turbine generator according to one embodiment of the present invention.
  • FIG. 6 is a diagram showing a cooling part of a bearing device of a wind turbine generator according to one embodiment of the present invention.
  • FIG. 7 is a diagram showing the configuration of the tongue of the wind turbine generator according to one embodiment of the present invention.
  • FIG. 8 is an overall front view of the exhaust heat ventilation passage of the wind turbine generator according to one embodiment of the present invention.
  • the overall configuration of the wind power generator according to the present embodiment includes a wind turbine 1, a fan 20 for preventing over rotation of the wind turbine 1, a power generator 30 for converting the rotational energy of the wind turbine 1 into electric energy, and a power generator 30.
  • a power storage device 40 for storing the electric power generated by the device 30, an illumination device 50 for lighting using the power stored in the power storage device 40, and the like are provided.
  • the windmill 1, the fan 20, the power generator 30, the power storage device 40, and the lighting device 50 are each held at a predetermined height from the ground so as to be sandwiched between the two poles 2.
  • the pole 2 is installed on the ground by the mounting base 3.
  • the mounting base 3 is installed by a fixture such as an anchor port.
  • the fan casing 21 is formed by a top plate 22, a side plate 23, and a bottom plate 24.
  • the fan 20 has a suction port 10 arranged at the end of the hollow pole 2, and has a suction chamber 11 and an orifice 12 between the suction port 10 and the top plate 22, a multi-blade type. It is composed of an impeller 4, a tongue 13 and a fan discharge port 14.
  • the multi-blade impeller 4 is coaxially connected to the upper end of the rotating shaft 7 of the wind turbine 1. Note that the multi-blade impeller 4 is an example of a centrifugal impeller, and the centrifugal impeller is not limited to the multi-blade impeller 4.
  • the multi-blade impeller 4 which is a centrifugal impeller, is formed by a fan with casing so as not to catch natural wind.
  • the direction of the wind of the blades of the multi-blade impeller 4 is set in the same direction as the direction in which the wind turbine 1 rotates by receiving the wind, and the lower end of the wind turbine 1 It is connected coaxially with the rotation axis of the machine 5.
  • the wind turbine 1 includes a rotating shaft 7 to which the generator 5 is connected via a joint 6, and a plurality of wind turbine blades 8 arranged around the rotating shaft 7.
  • Bearings 9 are provided on the upper and lower portions of the rotating shaft 7, respectively.
  • the rotating shaft 7 is held by each bearing 9, and the bearing 9 is provided inside the fan 20 and inside the power generator 30, respectively.
  • a lighting device 50 is attached to a lower portion of the power generating device 30, and a lighting device 15 is provided therein.
  • a control box 16 and a lead storage battery 17 are provided inside the power storage device 40, and can be turned on and off automatically by an illuminance sensor.
  • the power storage device 40 has an inspection door 18 for performing maintenance.
  • the power generation device 30 and the lighting device 50 are electrically connected to the power storage device 40 via the control box 16. Electric power generated by the rotational energy of the wind turbine 1 is stored in the power storage device 40, and the power stored in the power storage device 40 is supplied to the lighting device 50, and the lighting 15 is turned on.
  • FIG. 4 shows the characteristics of the present embodiment when the wind turbine 1 is operated alone, when the fan 20 is operated alone, and when the wind turbine 1 and the fan 20 are operated integrally.
  • Figure 4 shows the characteristic table of the natural wind speed and the rotation speed of the windmill and the fan.
  • Curve 101 indicates the operating characteristics of the wind turbine 1 alone, and the rotation speed of the wind turbine 1 increases almost in proportion to the increase in natural wind speed.
  • the curve 102 is the load characteristic of the fan 20 alone, and the rotation speed of the fan 20 increases in proportion to the square of the natural wind speed as the natural wind speed increases. It has increased.
  • a curve 103 which is an operation characteristic when the fan 20 is attached to the wind turbine 1 is an operation characteristic obtained by subtracting the curve 102 from the curve 101, and shows an actual operation state. Prevention of excessive rotation of the wind turbine 1 will be described below for the case of a wind speed of 15 mZs as the upper limit of the normal wind speed and the case of a wind speed of 60 m / s during a t
  • the upper limit of the normal wind speed was set to 15 mZ s.
  • the rated wind speed of the wind power generator was set to 15 m // s, and the generated power at wind speeds exceeding that was 40 m / s.
  • the upper limit is set at 15 m / s because power is not stored in the battery.
  • the curve 103 at the upper limit of the normal wind speed of 15 mZs, the single operation of the wind turbine 1 is approximately 100 rZmin, and when the fan 20 is installed, 8 00 r / min. Therefore, the rotation speed suppression rate at which the rotation speed of the windmill 1 is reduced by providing the fan 20 is 20%.
  • the power storage device 40 can use capacitors in addition to lead-acid batteries. it can.
  • FIG. 5 is an overall schematic perspective view of a propeller fan windmill of the wind turbine generator according to the second embodiment of the present invention.
  • the wind turbine generator uses a horizontal axis wind turbine, and includes a multi-blade impeller 4 coaxially with the rotation axis 7 of the wind turbine 1.
  • the rotating shaft 7 is connected to the generator 5 via a joint 6.
  • the multi-blade impeller 4 is provided inside the fan 20, and has a structure in which the air sucked from the suction port 10 is discharged by the multi-blade impeller 4 to the fan discharge port 14.
  • the multi-blade impeller 4 which rotates coaxially, becomes a resistance and prevents over-rotation. Can be.
  • FIG. 6 is a view of a cooling portion of a bearing device of the wind turbine generator according to the third embodiment of the present invention.
  • the bearing 9 is provided in a ventilation path in a fan 20 provided on an upper part of the wind power generator.
  • FIG. 7 is a diagram of a tongue part of a wind turbine generator according to a fourth embodiment of the present invention.
  • a fan provided at the top of the above-mentioned wind power generator The tongue 13 mounted inside 20 is in the position 13 B where it does not function as a tongue when the normal wind speed is 15 ms or less, and the position 13 A when the strong wind exceeds 15 m / s. Variable structure.
  • the air in the fan 20 is pumped out in the centrifugal direction by the rotation of the multi-blade impeller 4, and is discharged from the fan discharge port 14 to the outside through the tongue 13. .
  • the fan characteristics of the fan 20 can be adjusted, the load up to an arbitrary wind speed range can be reduced, and the decrease in power generation caused by the fan 20 can be reduced.
  • the gap between the multi-blade impeller 4, which is a centrifugal impeller, and the tongue 13 does not have a tongue shape up to the power generation wind speed range of the windmill, and when the power generation wind speed range is reached, the tongue is formed in the casing.
  • a tongue forming means having a shape is formed.
  • FIG. 8 is an overall front view of the exhaust heat ventilation passage of the wind turbine generator according to the fifth embodiment of the present invention.
  • the configuration is the same as that of the first embodiment shown in FIG. 8.
  • the heat generated by the generator 5, the lighting 15, the control box 16 and the lead-acid battery 17 is transferred to the fan installed in the upper part of the wind power generator by using the inside of the two poles 2 as a wind path. It is discharged out of the device by 20. This makes it possible to discharge the heat generated inside the wind turbine to the outside, and to prevent a rise in the temperature inside the turbine, which becomes high.
  • the present invention provides a wind turbine that includes a wind turbine that rotates by capturing natural wind and a storage battery that converts the rotational energy into electric energy and stores the electric energy.
  • a fan having a centrifugal impeller and a casing in which the centrifugal impeller does not catch natural wind Is formed.
  • the fan has the centrifugal impeller, the tongue, and the casing, and the shape of the tongue is changed.
  • the load applied to the windmill is reduced. Adjustment is also possible.
  • the gap between the centrifugal impeller and the tongue does not have a tongue shape up to the power generation wind speed range of the wind turbine, and enters the power generation wind speed range. It was also shown that the casing had a tongue forming means having a tongue shape in the casing. In this way, the fan load is reduced during natural wind speeds where the power generated by the windmill can be used, and the fan load becomes heavy at higher natural wind speeds. Adjustable in the part.
  • the present invention provides the above-described wind turbine generator, wherein the bearing of the wind turbine is arranged in the ventilation path near the discharge port of the centrifugal impeller inside the casing and cooled by the discharge flow of the fan. It also shows that it has a configuration. By doing so, the bearing temperature rises as the fan speed increases, so the bearings also provide a fan air intake path.
  • the rotation direction of the centrifugal impeller is such that the blade direction of the centrifugal impeller is forward with respect to the direction in which the wind turbine rotates by receiving natural wind. It also indicates that the wind turbine and the fan blades are arranged in such a way that the rotation direction is adjusted to prevent reverse load.
  • the material of the centrifugal impeller can be made of aluminum.
  • the centrifugal impeller may be a multi-blade impeller. It is also possible to configure with.
  • the wind power generator of the present invention includes a heating element such as a storage battery, an inverter, a generator and a control device, and a connecting pole for holding the windmill and the heating element.
  • the connecting pole has a hollow structure and has a heating element. Form a communicating ventilation path. Then, it was shown that the ventilation path was connected to the fan inlet, and the heat generated by the heating element was exhausted from the fan. In this way, when exhausting the heat generated from the heating element, it is possible to exhaust from a fan that does not catch natural wind so as not to be affected by the outdoors such as rainwater.
  • the blade of the wind turbine 1 of the present invention may be other than the Savonius and the propeller, and the shape of the blade is not limited as long as it rotates by natural wind.
  • the material of the centrifugal impeller can be made of aluminum. .
  • the protection of the blades of the wind turbine in the case of receiving a natural wind is described.
  • the present invention is also applicable to a device that rotates by a water flow or other fluid.
  • the structure is simplified because the braking is automatically performed by the braking force of the fan. Becomes unnecessary. Further, according to the present invention, it is possible to provide a protection device for a wind turbine having a simple structure, a low facility cost, a small number of regular maintenance operations for securing a braking function, and a long maintenance cycle.
  • the present invention is simple, reliable and inexpensive, and has a long maintenance cycle.
  • a wind power generator having a car protection device is provided.
  • the present invention can be applied to protection of the blades of a windmill when receiving a natural wind, and protection of a windmill or other fluid that is rotated by a fluid.

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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)
  • Wind Motors (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

L'invention porte sur une éolienne dans laquelle il est possible d'éviter la survitesse d'une roue éolienne entraînée par la vitesse du vent naturel, et cela au moyen d'une charge produite par un ventilateur sur la base d'une force rotationnelle de la roue éolienne. L'éolienne possède une roue qui tourne en captant le vent naturel et une batterie d'accumulateurs convertissant l'énergie rotative en énergie électrique en vue de la stocker. L'éolienne possède également une roue à ailettes centrifuge, coaxiale à l'arbre de rotation de la roue éolienne, et possédant une enveloppe, ne captant pas le vent naturel, de façon à former un ventilateur.
PCT/JP2004/019816 2003-12-26 2004-12-27 Eolienne WO2005064153A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002526399A CA2526399A1 (fr) 2003-12-26 2004-12-27 Eolienne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-433140 2003-12-26
JP2003433140A JP4085977B2 (ja) 2003-12-26 2003-12-26 風力発電装置

Publications (1)

Publication Number Publication Date
WO2005064153A1 true WO2005064153A1 (fr) 2005-07-14

Family

ID=34736502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/019816 WO2005064153A1 (fr) 2003-12-26 2004-12-27 Eolienne

Country Status (5)

Country Link
JP (1) JP4085977B2 (fr)
CN (1) CN100392237C (fr)
CA (1) CA2526399A1 (fr)
MY (1) MY137900A (fr)
WO (1) WO2005064153A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006136138A1 (fr) * 2005-06-24 2006-12-28 Härtl, Erhard Systeme d'eolienne double

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101388403B1 (ko) * 2013-02-22 2014-04-23 이주용 지주에 설치되는 태풍감쇄 장치
CN103277249B (zh) * 2013-06-03 2015-11-25 张效思 一种致风与自然风共驱组合叶片的风力发电机
JP6919876B2 (ja) * 2017-01-04 2021-08-18 グエン チー カンパニー リミテッド 遠心型流体機械および空調機

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4857607U (fr) * 1971-11-02 1973-07-23
JPS5126938U (fr) * 1974-08-19 1976-02-27
JPS5990764U (ja) * 1982-12-07 1984-06-20 セイコーエプソン株式会社 電気かみそりの内刃
JP2003293928A (ja) * 2002-03-29 2003-10-15 Daiwa House Ind Co Ltd サボニウス型風車
JP2003336572A (ja) * 2002-02-22 2003-11-28 Mitsubishi Heavy Ind Ltd ナセル構造の風車

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590764U (fr) * 1978-12-15 1980-06-23
JPS5677573A (en) * 1979-11-29 1981-06-25 Matsushita Electric Works Ltd Propeller wind mill
CN85106118A (zh) * 1985-08-17 1987-03-04 刘士源 风力发电装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4857607U (fr) * 1971-11-02 1973-07-23
JPS5126938U (fr) * 1974-08-19 1976-02-27
JPS5990764U (ja) * 1982-12-07 1984-06-20 セイコーエプソン株式会社 電気かみそりの内刃
JP2003336572A (ja) * 2002-02-22 2003-11-28 Mitsubishi Heavy Ind Ltd ナセル構造の風車
JP2003293928A (ja) * 2002-03-29 2003-10-15 Daiwa House Ind Co Ltd サボニウス型風車

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006136138A1 (fr) * 2005-06-24 2006-12-28 Härtl, Erhard Systeme d'eolienne double

Also Published As

Publication number Publication date
CN1780981A (zh) 2006-05-31
MY137900A (en) 2009-03-31
JP4085977B2 (ja) 2008-05-14
JP2005188454A (ja) 2005-07-14
CN100392237C (zh) 2008-06-04
CA2526399A1 (fr) 2005-07-14

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