Device and method for suction pipe
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United States of America Patent
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Sep 28, 2010
Grant Date -
Mar 13, 2008
app pub date -
Oct 18, 2005
filing date -
Oct 18, 2004
priority date (Note) -
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Abstract
A method and device for reducing noise and vibrations in a suction pipe (1) in a reaction-type hydropower turbine. The suction pipe (1) comprises one or more nozzles (2) for injection of a working medium through the nozzles (2) into the suction pipe (1). Each nozzle is arranged at an angle .gamma. relative to a horizontal plane perpendicular to the longitudinal axis (4) of an inlet (3) of the suction pipe (1) and at an angle .beta. relative to a horizontally defined tangent (6) at the point of intersection between each nozzle (2) and the suction pipe (1).
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