发明名称 |
Vertical axis wind turbine with twisted blade or auxiliary blade |
摘要 |
A vertical axis wind turbine (1) comprises three vertically extending sails (8) where each sail (8) comprises a strip (80) of substantially constant width. The opposite ends of each sail (8) are longitudinally twisted to have a pitch angle of approximately 90 degrees. The turbine (1) further comprises a vertically extending central core (7) and a vertically extending opening (9) between each sail (9) and the core (7). Also disclosed is an improvement in a vertical axis wind turbine (91) having at least one main blade (94) each of which has a longitudinal extent and a longitudinally extending radially outermost edge (924). The improvement comprises a longitudinally extending auxiliary blade (944) spaced from the main blade (94) to define a venturi inducing gap (99) between the main blade (94) and the auxiliary blade (944) whereby the turbine (91) has a zone of influence which extends radially beyond the maximum radial extent of the blades.
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申请公布号 |
US8469665(B2) |
申请公布日期 |
2013.06.25 |
申请号 |
US20050577639 |
申请日期 |
2005.10.19 |
申请人 |
BERTONY JOSEPH;WINDWORKS ENGINEERING LIMITED |
发明人 |
BERTONY JOSEPH |
分类号 |
F03D7/06 |
主分类号 |
F03D7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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