Turbomachine rotor having blades of composite material provided with metal labyrinth teeth
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United States of America Patent
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Oct 28, 2014
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N/A
app pub date -
Dec 11, 2009
filing date -
Dec 23, 2008
priority date (Note) -
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Abstract
The invention provides a turbine machine rotor having blades of composite material, the rotor comprising an assembly disk, a plurality of composite material blades mounted on the assembly disk via their roots and each provided at its free end with a platform, and a metal shroud positioned on the blade platforms concentrically around the assembly disk and including labyrinth teeth that project radially outwards in order to abrade an abradable material carried by a casing surrounding the rotor, the casing being held stationary both axially and circumferentially relative to the blade platforms and being suitable for moving radially outwards in operation relative to the blade platforms.
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