Windturbine comprising a bearing seal
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United States of America Patent
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Nov 11, 2014
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N/A
app pub date -
Feb 27, 2009
filing date -
Feb 29, 2008
priority date (Note) -
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Abstract
Wind turbine provided with a bearing supporting a hub carrying rotor blades, the bearing comprising a rotational bearing race connected to the hub and a stationary bearing race, a lubrication area between the bearing races which area is confined at both ends by first seal rings sealing the gap between the rotational bearing race and stationary parts to form a lubrication barrier. At one or both ends of the lubrication area a redundant seal ring is arranged at a distance from the first seal ring in or near the gap to be sealed.
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