F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
F03D 11/00 (2006.01) F01P 1/06 (2006.01) F16K 7/10 (2006.01) F24F 13/08 (2006.01)
Patent
CA 2747875
A wind turbine generator is provided in which the efficiency of heating the interior of a nacelle can be improved at a low outside air temperature in a cold region. The wind turbine generator includes a nacelle that accommodates a driving and generating mechanism connected to a rotor head fitted with turbine blades, wherein the nacelle is equipped with a lubricant-oil cooling fan (14) and a generator cooling fan (17) that ventilate the interior of the nacelle to prevent an increase in the temperature of the interior and a neating device (24) that raises the temperature of the interior of the nacelle at a low outside air temperature, wherein the cooling fans (14 and 17) can be operated with the rotating directions and the rotational speeds thereof being controlled, and during the operation of the heating device (24), the rotating directions and the rotational speeds of the cooling fans (14 and 17) are controlled so as to make the wind velocity at the ventilation ports thereof about zero.
Mitsubishi Heavy Industries Ltd.
Riches Mckenzie & Herbert Llp
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