Blade Wheel of a Kaplan Turbine
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Aug 1, 2013
filing date -
Nov 20, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to an impeller for a Kaplan turbine, comprising the following features or components: a shaft, a plurality of blades; a hollow hub which is located on the free end of the shaft and which carries the blades; an adjustment device for rotating the blades around axes of rotation perpendicular to the axis of rotation of the shaft. The invention is characterized by the following features: the interior of the hub is connected to a source of compressed air; branch lines are provided inside the hub to supply the compressed air to bearings or other lubrication points for the adjustment device.
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