Prime-mover dynamo plants – Fluid-current motors – Wind
Reexamination Certificate
2011-08-30
2011-08-30
Cuevas, Pedro J (Department: 2839)
Prime-mover dynamo plants
Fluid-current motors
Wind
C290S044000
Reexamination Certificate
active
08008798
ABSTRACT:
A wind turbine is provided having a drivetrain with a gearbox and a gearbox housing, at least one gear stage and an output shaft coupled within the housing. The gear stage exerts an axial thrust force on the output shaft during operation of the wind turbine. A generator includes a generator housing and an input shaft connected to the output shaft of the gearbox. The generator includes a rotor and a stator coupled to the generator housing. The rotor is coupled to the input shaft such that the rotor is positioned radially inward from the stator. At least one bearing is shared between the gearbox output shaft and the generator input shaft, and this bearing carries a portion of the axial thrust force. The generator is skewed to exert an opposing axial thrust force on the input shaft, so that the axial thrust force carried by the bearing is reduced.
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Barnes Gary R.
Haran Kiruba S.
Jansen Patrick L.
Minadeo Adam D.
Qu Ronghai
Cuevas Pedro J
Cusick Ernest G.
General Electric Company
Landgraff Frank A.
Pemrick James W.
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