Gas-path leakage seal for a gas turbine
Abstract
A gas-path leakage seal is described for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a generally imperforate foil-layer assemblage which is generally impervious to gas and is located in the leakage-gap. The seal also includes a cloth-layer assemblage generally enclosingly contacting the foil-layer assemblage. In one seal, the first edge of the foil-layer assemblage is left exposed, and the foil-layer assemblage resiliently contacts the first member near the first edge to reduce leakage in the ``plane`` of the cloth-layer assemblage under conditions which include differential thermal growth of the two members. In another seal, such leakage is reduced by having a first weld-bead which permeates the cloth-layer assemblage, is attached to the metal-foil-layer assemblage near the first edge, and unattachedly contacts the first member. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- RTI International, Research Triangle Park, NC (United States)
- OSTI Identifier:
- 224979
- Patent Number(s):
- 5509669
- Application Number:
- PAN: 8-491,757
- Assignee:
- General Electric Co., Schenectady, NY (United States)
- DOE Contract Number:
- AC21-93MC30244
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 23 Apr 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; GAS TURBINES; SEALS; DESIGN; OPERATION; LEAKS; FABRICATION; COMBUSTION CHAMBERS
Citation Formats
Wolfe, C E, Dinc, O S, Bagepalli, B S, Correia, V H, and Aksit, M F. Gas-path leakage seal for a gas turbine. United States: N. p., 1996.
Web.
Wolfe, C E, Dinc, O S, Bagepalli, B S, Correia, V H, & Aksit, M F. Gas-path leakage seal for a gas turbine. United States.
Wolfe, C E, Dinc, O S, Bagepalli, B S, Correia, V H, and Aksit, M F. Tue .
"Gas-path leakage seal for a gas turbine". United States.
@article{osti_224979,
title = {Gas-path leakage seal for a gas turbine},
author = {Wolfe, C E and Dinc, O S and Bagepalli, B S and Correia, V H and Aksit, M F},
abstractNote = {A gas-path leakage seal is described for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a generally imperforate foil-layer assemblage which is generally impervious to gas and is located in the leakage-gap. The seal also includes a cloth-layer assemblage generally enclosingly contacting the foil-layer assemblage. In one seal, the first edge of the foil-layer assemblage is left exposed, and the foil-layer assemblage resiliently contacts the first member near the first edge to reduce leakage in the ``plane`` of the cloth-layer assemblage under conditions which include differential thermal growth of the two members. In another seal, such leakage is reduced by having a first weld-bead which permeates the cloth-layer assemblage, is attached to the metal-foil-layer assemblage near the first edge, and unattachedly contacts the first member. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {4}
}