| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wind turbine generator that is capable of resolving the problems of an increase in the weight of a wind turbine blade and the reduction in ventilation efficiency, and capable of achieving good ventilation cooling in a rotor head with a simple structure. <P>SOLUTION: The wind turbine generator includes: a hollow interior space 51 formed in a wind turbine blade 5 along substantially the entire length; an exhaust path 52 provided through a wind-turbine-blade forming member at a tip end of the wind turbine blade 5 or in a vicinity of the tip end, so as to allow the interior space 51 to communicate with an outside of the wind turbine blade; and an opening 53 that allows the interior space 51 to communicate with the inside of a rotor head body 41. Ventilation cooling inside the rotor head body 41 is performed by using a pressure difference between the tip end of the wind turbine blade 5 and the rotor head body 41, produced by a rotation of the wind turbine blade 5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
