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    • 3. 发明申请
    • 大型安全高效率的风车
    • WO2009030070A1
    • 2009-03-12
    • PCT/CN2007/002653
    • 2007-09-05
    • 吕学本
    • 吕学本
    • F03D3/00F03D7/06
    • F03D3/02F03D9/25F05B2240/218Y02E10/74
    • A large sized safe windmill with high efficiency is made up of plural vane-assemblies. Each assembly includes an axle center (2) that connecting the adjacent vane -assemblies by the connectors (21) for transferring power on the ends of the center. Then the power is finally transferred to the generator (82) that generating electricity at the bottom of the windmill. There are plural blade-assemblies extend from the axle center. The vane blade (1) has an extending plane (11) that bending relative to the outside of the axle center, and the extending plane is angled with the blade about 18~20°. There are rotating axes (13,14) controlling the rotation of plurality of vane blades both on the upside and on the underside thereof. There are horizontal protective shafts (15,16) around the axes and vertical connecting shafts (17) between the vane blades. The vertical connecting shafts transfer power from the blades to the horizontal protective shafts, and thereafter the power concentrates to the axle center. A dogvane (4) and a wind-speed switch (6) are set on top of the windmill, which vary the rotation of the vane blades by means of the changing the direction and degree of the wind.