Bearings – Rotary bearing – Fluid bearing
Reexamination Certificate
2010-09-29
2011-12-20
Hannon, Thomas R (Department: 3656)
Bearings
Rotary bearing
Fluid bearing
C384S100000, C384S111000
Reexamination Certificate
active
08079761
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 cylindrical 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, wherein at least one fluid cavity is located in the lower portion and at least one fluid cavity is located in the upper portion. The at least one cavity in the lower portion includes first and second pairs of longitudinally spaced fluid cavities on the first and second sides of the bearing surface respectively. 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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