Bearings – Rotary bearing – Fluid bearing
Reexamination Certificate
2010-09-29
2011-12-13
Hannon, Thomas R (Department: 3656)
Bearings
Rotary bearing
Fluid bearing
C384S100000, C384S109000
Reexamination Certificate
active
08075190
ABSTRACT:
A plain bearing assembly for a wind turbine includes a bearing housing having a passageway configured to receive a shaft and a bearing surface defining the passageway and having a generally spherical configuration. The bearing surface includes lower and upper portions defined relative to a first midline plane and first and second sides defined relative to a second midline plane. A plurality of fluid cavities is in the bearing surface including a first group of fluid cavities located at a first longitudinal position and a second group of fluid cavities located at a second longitudinal position. The first group of fluid cavities defines a cavity pattern that is different than the cavity pattern defined by the second group of fluid cavities. A wind turbine having such a plain bearing assembly is also disclosed.
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Hager Patrik
Wadehn Jörg
Hannon Thomas R
Vestas Wind Systems A/S
Wood Herron & Evans L.L.P.
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