[특허]Helical wind turbine

[미국특허] Helical wind turbine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F03D-007/06 F03D-007/00
출원번호	US-0128251 (2005-05-13)
등록번호	US-7344353 (2008-03-18)
발명자 / 주소	Naskali,Pertti H. MacLean,Angus Gray,Neil C. C. Lewis,J. Harry Newall,A. Patrick
출원인 / 주소	Arrowind Corporation
대리인 / 주소	Gowan Intellectual Property
인용정보	피인용 횟수 : 43 인용 특허 : 13

초록 ▼

A vertical axis wind turbine wherein the blades of the rotor section of the wind turbine comprise at least sections wherein the blades have a non-linear configuration in the "z" axis. In a preferred embodiment, the blades of the rotor section have a linear trailing edge with a non-linear, and preferably helical, surface configuration. This particular design allows the blades to provide both a rotational force and a positive or negative lift component. Further, the blades define an open area in the center of the rotor section through which air flow can pass in order to create a vertical vortex of air. As such, a more efficient vertical axis wind turbine provided.

대표청구항 ▼

We claim: 1. A vertical axis wind turbine having a base structure and a rotor section comprising at least two blades for collection of wind energy, a lower support brace attached to the lower end of each blade, an upper support brace attached to the upper end of each blade, an axle for rotation of said rotor section which axle is affixed to said lower support brace and is used to operatively connect said rotor section to said base structure, wherein at least a portion of said blades have a non-linear design so as to provide both a rotation and lifting force on said rotor section as a result of wind impacting said wind turbine, and wherein each of said blades comprises a linear trailing edge and a helical surface configuration. 2. A vertical axis wind turbine as claimed in claim 1 wherein said linear trailing edges of said blades define a central open area along a vertical rotational axis of said rotor section. 3. A vertical axis wind turbine as claimed in claim 2 where said helical blades overlap said vertical rotational axis so as to prevent wind from passing through said central open area without impacting said blades, regardless of wind direction. 4. A vertical axis wind turbine as claimed in claim 1 comprising between 3 and 5 blades, and said blades are circumferentially equally spaced apart about the rotor in an annular array. 5. A vertical axis wind turbine as claimed in claim 1 additionally comprising one or more intermediate support braces. 6. A vertical axis wind turbine as claimed in claim 1 wherein said blades are orientated to provide a positive lifting force. 7. A vertical axis wind turbine as claimed in claim 1 wherein said blades have a uniform horizontal cross-section width throughout their vertical length. 8. A vertical axis wind turbine having a base structure and a rotor section comprising at least two blades for collection of wind energy, a lower support brace attached to the lower end of each blade, an upper support brace attached to the upper end of each blade, an axle for rotation of said rotor section which axle is affixed to said lower support brace and is used to operatively connect said rotor section to said base structure, wherein at least a portion of said blades have a non-linear design so as to provide both a rotation and lifting force on said rotor section as a result of wind impacting said wind turbine, and wherein any or all of said blades comprise a means for adjusting the drag coefficient on either or both sides of said blades. 9. A vertical axis wind turbine as claimed in claim 8 wherein said means for adjusting the drag coefficient comprises a textured surface. 10. A vertical axis wind turbine as claimed in claim 9 wherein said textured surface is provided by a series of dimples on said surface. 11. A vertical axis wind turbine as claimed in claim 8 wherein said means for adjusting the drag coefficient comprises a plurality of projecting fibs on said surface. 12. A vertical axis wind turbine as claimed in claim 2 wherein said rotor section has an overall height of between 1.5 and 3 meters, a diameter of between 0.5 and 2 meters, and said central open area is between 7 and 20% of the overall rotor section diameter. 13. A vertical axis wind turbine as claimed in claim 1 additionally comprising lift elements for reducing the effective weight of the rotor section. 14. A vertical axis wind turbine as claimed in claim 13 wherein said lift elements are passive lift elements. 15. A vertical axis wind turbine as claimed in claim 14 wherein said passive lift elements are baffles on said base section. 16. A vertical axis wind turbine as claimed in claim 1 additionally comprising a braking system for controlling the rotational speed of said rotor section. 17. A vertical axis wind turbine having a base structure and a rotor section comprising at least two blades for collection of wind energy, a lower support brace attached to the lower end of each blade, an upper support brace attached to the upper end of each blade, an axle for rotation of said rotor section which axle is affixed to said lower support brace and is used to operatively connect said rotor section to said base structure, wherein at least a portion of said blades have a non-linear design so as to provide both a rotation and lifting force on said rotor section as a result of wind impacting said wind turbine, and additionally comprising a series of magnets to provide positive or negative lift to said rotor section. 18. A rotor section for use in a vertical axis wind turbine rotor, which rotor section is adapted to be fitted into a vertical axis wind turbine base section, comprising at least two blades for collection of wind energy, a lower support brace attached to the lower end of each blade, an upper support brace attached to the upper end of each blade, an axle for rotation of said rotor section which axle is affixed to said lower support brace and is adapted to be used to operatively connect said rotor section to said base structure, wherein at least a portion of said blades have a non-linear design so as to provide both a rotation and lifting force on said rotor section as a result of wind impacting said wind turbine and wherein each of said blades comprises a linear trailing edge and a helical surface configuration. 19. A rotor section as claimed in claim 18 wherein said linear trailing edges of said blades define a central open area along a vertical rotational axis of said rotor section. 20. A rotor section as claimed in claim 19 where said helical blades overlap said vertical rotational axis so as to prevent wind from passing through said central open area without impacting said blades, regardless of wind direction. 21. A rotor section as claimed in claim 18 comprising between 3 and 5 blades, and said blades are circumferentially equally spaced apart about the rotor in an annular array.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Bruce I. Brill IL, Modular wind energy device.
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Cymara Hermann K. (R.D. #2 ; 176 Horton Rd. Newfield NY 14867), Panemone wind turbine.
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Herbert Frank P. (2145 Ivy St. Port Townsend WA 98366) Ottenheimer John (P.O. Box 1378 Lopez Island WA 98261), Panemone windmill.
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Drees Herman M. (Box 7 Marstons Mills MA 02648), Self-starting windmill energy conversion system.
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Rowe, John, Vertical axis wind turbine.
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Gilman Frederick C. (4th and Market ; Box 395 Osceola MO 64776), Vertical axis wind turbine for generating usable energy.
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Thomas ; Robert Nason, Vertical windmill.
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Baumgartner Franklin W. (Denver CO) Murphy John Michael (Littleton CO), Wind driven power generator.
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Le Nabour, Marcel; Hagopian, Christophe, Wind machine with slanted blades.
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Giorgini Roberto,ANX, Wind turbine booster.
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Staley Frederick J. (1403 N. College Ave. ; #5 Fort Collins CO 80524) Elder Dillyn M. (1513 N. College Ave. ; #18 Fort Collins CO 80524), Wind turbine particularly suited for high-wind conditions.
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Benesh Alvin H. (120 S. Adams Ave. Pierre SD 57501), Wind turbine rotor.
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Benesh Alvin H. (120 S. Adams Ave. Pierre SD 57501), Wind turbine system using a savonius type rotor.
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이 특허를 인용한 특허 (43) 인용/피인용 타임라인 분석

Garver, Theodore M., Fluid interface device as well as apparati and methods including same.
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Joutsiniemi, Risto, Fluid rotor.
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DeRuyter, William; Allawos, Michael; Coye, Peter L., Fluid turbine systems.
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DeRuyter, William; Allawos, Michael; Coye, Peter L., Fluid turbine systems.
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Hart,James R., Helical taper induced vortical flow turbine.
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Burrell, IV, James W., Helix turbine system and energy production means.
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Haddjeri, Nordine; Hayane, Ocine, Horizontal-axis wind generator.
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Joutsiniemi, Risto, Linear power station.
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Hartman, Paul Harvey, Mass produced composite wind turbine blades.
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Foss, John F.; Wlezien, Richard; Wang, Bingsen, Maximally efficient vertical axis wind turbine.
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Bates, Daniel L.; Schlicher, Bob G.; Owen, John R.; Tangirala, Ravi K.; Guntur, Srinivas K.; Johnson, Gary E., Modular alternative energy unit.
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Yost, Robert D., Modular micro wind turbine.
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Yost, Robert D., Modular micro wind turbine.
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Bates, Daniel L.; Schlicher, Bob G.; Owen, John R.; Tangirala, Ravi K.; Guntur, Srinivas K.; Johnson, Gary E., Modular wind energy unit with simple electrical connections.
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Moore, Brian, Moving fluid energy recovery system.
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Bardia, Jaime Mlguel, On or off grid vertical axis wind turbine and self contained rapid deployment autonomous battlefield robot recharging and forward operating base horizontal axis wind turbine.
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Edmiston, Daniel, Reflex camber surfaces for turbines.
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Hartman, Paul Harvey, Renewable energy vehicle charging station.
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Nix, Martin Eugene, System to create rotational energy from a wind-chimmey and solar-smelter.
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Christopher, Theodore J.; Booher, Anthony R., Turbine.
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Beaston, Steven D., Turbine apparatus and methods.
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Scarpelli, Tadd M., Turbine assembly and energy transfer method.
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Christopher, Theodore J., Turbine system and method.
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Christopher, Theodore J., Turbine system and method.
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Christopher, Theodore J., Turbine system and method.
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Christopher, Theodore J., Turbine system and method.
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Perless, Robert; Moskowitz, Jay; Hansel, Steven J., Vertical axis helical wind turbine.
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Ball, John Bradley, Vertical axis wind turbine.
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Morris, Richard, Vertical axis wind turbine system.
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Huang, Tzu-Yao; Hsiao, Tso-Cheng, Vertical wind power generator with automatically unstretchable blades.
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Coffey, Daniel P., Wind energy conversion devices.
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Coffey, Daniel P., Wind energy conversion devices.
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Sauer, Dieter, Wind sail turbine.
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Sauer, Jr., Dieter, Wind sail turbine.
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Mazur, Ed, Wind turbine.
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McCamley, Andrew Stuart John, Wind turbine.
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Rubio, Humberto Antonio, Wind turbine.
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Plaskove, Robert M.; Miller, Courtlandt G.; Hefazi, Hamid; Rahai, Hamid R., Wind turbine apparatus.
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Aihara, Kunihiko; Aihara, Junko, Wind turbine blade.
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Aihara, Kunihiko; Aihara, Junko, Wind turbine blade.
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Aihara, Kunihiko; Aihara, Junko, Wind turbine blade.
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Tadayon, Saied; Tadayon, Bijan; Martin, David, Wind turbine blade system with air passageway.
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Morgan, Ken; Slattery, Michael, Wind-driven electricity generation device with segmented rotor.
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[미국특허] Helical wind turbine 원문보기

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[미국특허] Helical wind turbine 원문보기

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이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (43) 인용/피인용 타임라인 분석

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