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Layered seal for turbomachinery

United States Patent

November 17, 2015
View the Complete Patent at the US Patent & Trademark Office
The present application provides seal assemblies for reducing leakages between adjacent components of turbomachinery. The seal assemblies may include outer shims, and at least a portion of the outer shims may be substantially impervious. At least one of the outer shims may be configured for sealing engagement with seal slots of the adjacent components. The seal assemblies may also include at least one of an inner shim and a filler layer positioned between the outer shims. The at least one inner shim may be substantially solid and the at least one filler layer may be relatively porous. The seal assemblies may be sufficiently flexible to account for misalignment between the adjacent components, sufficiently stiff to meet assembly requirements, and sufficiently robust to operating meet requirements associated with turbomachinery.
Sarawate; Neelesh Nandkumar (Niskayuna, NY), Morgan; Victor John (Simpsonville, SC), Weber; David Wayne (Simpsonville, SC)
General Electric Company (Niskayuna, NY)
13/ 560,357
July 27, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT This invention was made with Government support under contract number DE-FC26-05NT42643 awarded by the Department Of Energy. The U.S. Government has certain rights in this invention.