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US 12,276,255 B2Granted
Insulated pitch tube
AssigneesZF Friedrichshafen AG, Zf Wind Power Antwerpen N.V., Vestas Wind Systems A/S
InventorsDirk Strasser, Dietmar Weist, Deyan Stoyanov, Ralf Sperlich
Life of this patent
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Abstract
An arrangement includes a transmission, a pitch tube, and a fixation device configured to affix the pitch tube in the transmission. The fixation device is electrically insulated from the pitch tube. The pitch tube can be axially movable relative to the fixation device. The pitch tube can be fixed in a shaft or a rotatably-mounted planet carrier of the transmission by the fixation device.
Claims12
An arrangement, comprising:
- a transmission part,
- a pitch tube, and
- a fixation device configured to affix the pitch tube to the transmission part, the fixation device including a base body and an electrical non-conductor,
- wherein the fixation device is electrically insulated from the pitch tube by the electrical non-conductor, and
- wherein the electrical non-conductor is arranged in its entirety between the transmission part and the base body of the fixation device.
2 more elements
An arrangement, comprising:
- a sun shaft with a first flange, the first flange extending radially relative to an axial extent of the sun shaft;
- an input shaft of a generator, the input shaft forming a second flange extending radially relative to an axial extent of the input shaft;
- a disk consisting of an electrical insulator arranged in its entirety between the first flange and the second flange such that the sun shaft and the input shaft are electrically insulated from one another;
- and
- a fastener configured to secure the first flange and the second flange to one another through the disk,
- wherein the fastener is encapsulated with a further electrical insulator.
3 more elements
Dependencies are inferred from the claim text.