Rotor shaft for a wind energy plant and wind energy plant
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United States of America Patent
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Nov 20, 2012
Issued Date -
N/A
app pub date -
Jun 26, 2009
filing date -
Jul 29, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention is related to a rotor shaft for a wind energy plant, wherein the rotor shaft is at least partially hollow, comprising a line pipe, extending in the interior of the rotating rotor shaft and being stationary and accommodating electric lines, a transmission device, arranged at least partially in the rotor shaft, for the electric connection between a stationary nacelle and a rotating rotor of the wind energy plant, wherein the transmission device features a first body, stationary and connected to the line pipe, and a second body rotating with the rotor shaft, and wherein there is an electric sliding contact between the first and the second body, a casing surrounding the transmission device and formed separately from the second body, which is connected to the rotor shaft and/or adapted to be connected to a rotor hub of the wind energy plant, and which rotates with the rotor shaft, and a torque transmitting connection between the casing and the second body of the transmission device.
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