ADDITIONAL HYDRAULIC DEVICE FOR A PITCH SYSTEM, A PITCH SYSTEM AND WIND TURBINE
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Sep 4, 2024
filing date -
Sep 4, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
An additional hydraulic device for a pitch system of a wind turbine, the additional hydraulic device including a hydraulic motor, a hydraulic accumulator for storing hydraulic energy, a valve unit, a return line and a reservoir. The return line is connected to the reservoir. The valve unit is switchable to a drive switching position, and the hydraulic motor is connected to the hydraulic accumulator in the drive switching position. The energy stored in the hydraulic accumulator drives the hydraulic motor in the drive switching position so that the hydraulic motor delivers an additional force component.
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