Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment
Abstract
A gas turbine nozzle segment has outer and inner bands. Each band includes a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band and inturned flange define with the nozzle wall an undercut region. The inturned flange has a plurality of apertures for directing cooling steam to cool the side wall between adjacent nozzle segments.
- Inventors:
-
- Schenectady, NY
- Simpsonville, SC
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- OSTI Identifier:
- 874170
- Patent Number(s):
- 6331096
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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
- DOE Contract Number:
- FC21-95MC31176
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; methods; impingement; cooling; undercut; region; adjacent; wall; turbine; nozzle; segment; gas; outer; inner; bands; band; cover; plate; defining; cavities; opposite; steam; supplied; cavity; flow; apertures; cool; inturned; flange; define; plurality; directing; segments; gas turbine; turbine nozzle; region adjacent; nozzle segment; /415/
Citation Formats
Burdgick, Steven Sebastian, and Itzel, Gary Michael. Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment. United States: N. p., 2001.
Web.
Burdgick, Steven Sebastian, & Itzel, Gary Michael. Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment. United States.
Burdgick, Steven Sebastian, and Itzel, Gary Michael. Mon .
"Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment". United States. https://www.osti.gov/servlets/purl/874170.
@article{osti_874170,
title = {Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment},
author = {Burdgick, Steven Sebastian and Itzel, Gary Michael},
abstractNote = {A gas turbine nozzle segment has outer and inner bands. Each band includes a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band and inturned flange define with the nozzle wall an undercut region. The inturned flange has a plurality of apertures for directing cooling steam to cool the side wall between adjacent nozzle segments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}
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