Patent ID: 8672628
Filing Date: 2014-03-18
Classification: F03D,F05B,Y02E

Abstract:
1. A wind turbine generator, in which a rotor head that rotates by receiving external wind with turbine blades generates power by driving a generator installed inside a nacelle and in which the nacelle is installed at a top end of a tower, wherein a plurality of introducing vents that takes the external wind into an internal space in the wind turbine generator is provided at a portion of an outer circumference surface of the tower or the nacelle that receives positive pressure due to the external wind, a plurality of exhaust vents that externally exhausts cooling air in the internal space is provided at a portion of the outer circumference surface of the tower or the nacelle that receives negative pressure due to the external wind, and wherein introducing-vent opening/closing means that opens when outside air pressure of the tower or the nacelle becomes greater than inside air pressure of the tower or the nacelle and that closes when the inside air pressure of the tower or the nacelle becomes greater than the outside air pressure of the tower or the nacelle is provided at each of the plurality of introducing vents of the tower or the nacelle.