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Leaf seal for gas turbine stator shrouds and a nozzle band

United States Patent

June 11, 2002
View the Complete Patent at the US Patent & Trademark Office
A leaf seal assembly is secured to the trailing edge of a shroud segment for sealing between the shroud segment and the leading edge side wall of a nozzle outer band. The leaf seal includes a circumferentially elongated seal plate biased by a pair of spring clips disposed in a groove along the trailing edge of the shroud segment to maintain the seal plate in engagement with the flange on the leading edge side wall of the nozzle outer band. The leaf seal plate and spring clips receive pins tack-welded to the shroud segment to secure the leaf seal assembly in place.
Burdgick; Steven Sebastian (Schenectady, NY), Sexton; Brendan Francis (Simpsonville, SC)
General Electric Company (Schenectady, NY)
09/ 571,814
May 16, 2000
This invention was made with Government support under Contract No. DE-FC21-95MC31176 awarded by the Department of Energy. The Government has certain rights in this invention.