Wind turbine generator

Details Wind turbine generator Wind turbine generator

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 11/00 (2006.01) F16N 1/00 (2006.01) F16N 9/02 (2006.01) F16N 31/00 (2006.01)

Patent

CA 2696973

There is provided a wind turbine generator 1 that includes an improved grease supply and discharge system of lubricant oil used in a blade rotating ring bearing 10 of a wind turbine blade 5, and can reliably recover discharged grease. The wind turbine generator 1 includes a pitch control mechanism that can adjust a pitch angle of the wind turbine blade 5 via the blade rotating ring bearing 10 provided between the wind turbine blade 5 and a rotor head 4, a grease supply and discharge device 20 is provided in the rotor head 4, and the grease supply and discharge device 20 includes a grease supply device 30 that pumps lubricant oil in a supplied grease tank 31 with a grease supply pump 32 and supplies the lubricant oil to the blade rotating ring bearing 10, and a grease discharge device 40 that forcibly sucks and recovers the discharged grease from the blade rotating ring bearing 10.

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