Wind turbine generating apparatus
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsShinsuke SATO, Shigeto HIRAI, Tatsuo ISHIGURO
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Abstract
In a wind turbine generating apparatus, a heat generating device is provided inside the rotor head and has a hermetically-sealed structure from outside. A rotor head cooling air passage is formed through the periphery of the heat generating device to the inside of a wind turbine blade. A cooling air introduction portion through which cooling air flows and an air outlet from which the cooling air is discharged are provided in the rotor head cooling air passage to thereby form the air outlet in the wind turbine blade.
Claims7
A wind turbine generating apparatus which generates electricity by causing a rotor head to rotate upon receiving outside wind on a wind turbine blade and thereby driving a generator that is installed inside a nacelle supported on a top of a tower,
- wherein the rotor head comprises a rotor hub which supports the wind turbine blade rotatably in a pitch direction, and a hub cover which covers the rotor hub, and
- the wind turbine blade comprises a communication port which is provided so as to communicate between an interior space between the rotor hub and the hub cover and an interior space of the wind turbine blade, and an air outlet which communicates between the interior space of the wind turbine blade and outside, and
- further comprises a rotor head cooling air passage which communicates between the communication port and the air outlet, and a cooling air introduction portion which allows outside air to flow into the rotor head cooling air passage.
Dependencies are inferred from the claim text.