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Title: Leaf seal for gas turbine stator shrouds and a nozzle band

Abstract

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.

Inventors:
 [1];  [2]
  1. Schenectady, NY
  2. Simpsonville, SC
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
OSTI Identifier:
874500
Patent Number(s):
6402466
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
leaf; seal; gas; turbine; stator; shrouds; nozzle; band; assembly; secured; trailing; edge; shroud; segment; sealing; leading; wall; outer; circumferentially; elongated; plate; biased; pair; spring; clips; disposed; groove; maintain; engagement; flange; receive; pins; tack-welded; secure; gas turbine; leading edge; /415/277/

Citation Formats

Burdgick, Steven Sebastian, and Sexton, Brendan Francis. Leaf seal for gas turbine stator shrouds and a nozzle band. United States: N. p., 2002. Web.
Burdgick, Steven Sebastian, & Sexton, Brendan Francis. Leaf seal for gas turbine stator shrouds and a nozzle band. United States.
Burdgick, Steven Sebastian, and Sexton, Brendan Francis. Tue . "Leaf seal for gas turbine stator shrouds and a nozzle band". United States. https://www.osti.gov/servlets/purl/874500.
@article{osti_874500,
title = {Leaf seal for gas turbine stator shrouds and a nozzle band},
author = {Burdgick, Steven Sebastian and Sexton, Brendan Francis},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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