ROTOR BLADE PITCH ARRANGEMENT
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United States of America Patent
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Issued Date -
Jan 18, 2018
app pub date -
Jul 6, 2017
filing date -
Jul 12, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A blade pitch arrangement of a wind turbine is provided having a number of blade shafts extending radially outward from a hub and a rotor blade mounted around each blade shaft, which blade pitch arrangement includes a toothed ring arranged at the root end of each rotor blade; and a pitch drive unit for each rotor blade, having a driver body and a pinion realized to engage with the toothed ring of a rotor blade; wherein a pitch drive unit is arranged relative to its corresponding rotor blade such that the pinion is positioned closest to the hub, and the driver body extends in a direction radially outward from the hub. A wind turbine is also described.
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