Axially-oriented cellular seal structure for turbine shrouds and related method
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United States of America Patent
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May 21, 2013
Grant Date -
Oct 13, 2011
app pub date -
Apr 9, 2010
filing date -
Apr 9, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A seal system between a row of buckets supported on a machine rotor and a surrounding stationary casing or stator includes a tip shroud secured at radially outer tips of each of the buckets, the tip shroud formed with a radially-projecting rail. A cellular seal structure is supported in the stationary stator in radial opposition to the tip shroud and the rail. The seal structure has an annular array of individual cells formed to provide continuous, substantially horizontal flow passages devoid of any radial obstruction along substantially an entire axial length dimension of the cellular seal structure to prevent flow about the tip shroud from turning radially inwardly.
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Cited Art Landscape
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