Method and device for counteracting wear and tear around a guide vane
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United States of America Patent
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Dec 31, 2013
Grant Date -
May 17, 2012
app pub date -
Jul 9, 2010
filing date -
Jul 14, 2009
priority date (Note) -
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Abstract
A method and a device to counteract wear about a guide vane (16) from a particle bearing drive water, the guide vane (16) being arranged in a guide vane housing (14) in a water turbine (1), and where the method comprises: —routing a supply channel (36) for water cleaner than the drive water to the attachment point area between the guide vane (16) and the guide vane housing (14); and—leading water cleaner than the drive water to flow through a slit (28) where the slit (28) at least partly encircles the guide vane (16).
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