Turbine airfoil having near-wall cooling insert
Abstract
A turbine airfoil is provided with at least one insert positioned in a cavity in an airfoil interior. The insert extends along a span-wise extent of the turbine airfoil and includes first and second opposite faces. A first near-wall cooling channel is defined between the first face and a pressure sidewall of an airfoil outer wall. A second near-wall cooling channel is defined between the second face and a suction sidewall of the airfoil outer wall. The insert is configured to occupy an inactive volume in the airfoil interior so as to displace a coolant flow in the cavity toward the first and second near-wall cooling channels. A locating feature engages the insert with the outer wall for supporting the insert in position. The locating feature is configured to control flow of the coolant through the first or second near-wall cooling channel.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Energy, Inc. Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1390172
- Patent Number(s):
- 9759073
- Application Number:
- 15/055,003
- Assignee:
- Siemens Energy, Inc.
- 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:
- FE0023955
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2016 Feb 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Martin, Jr., Nicholas F., and Wiebe, David J. Turbine airfoil having near-wall cooling insert. United States: N. p., 2017.
Web.
Martin, Jr., Nicholas F., & Wiebe, David J. Turbine airfoil having near-wall cooling insert. United States.
Martin, Jr., Nicholas F., and Wiebe, David J. Tue .
"Turbine airfoil having near-wall cooling insert". United States. https://www.osti.gov/servlets/purl/1390172.
@article{osti_1390172,
title = {Turbine airfoil having near-wall cooling insert},
author = {Martin, Jr., Nicholas F. and Wiebe, David J.},
abstractNote = {A turbine airfoil is provided with at least one insert positioned in a cavity in an airfoil interior. The insert extends along a span-wise extent of the turbine airfoil and includes first and second opposite faces. A first near-wall cooling channel is defined between the first face and a pressure sidewall of an airfoil outer wall. A second near-wall cooling channel is defined between the second face and a suction sidewall of the airfoil outer wall. The insert is configured to occupy an inactive volume in the airfoil interior so as to displace a coolant flow in the cavity toward the first and second near-wall cooling channels. A locating feature engages the insert with the outer wall for supporting the insert in position. The locating feature is configured to control flow of the coolant through the first or second near-wall cooling channel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {9}
}
Works referenced in this record:
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patent, March 2009
- Liang, George
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Air cooled turbine airfoil with sequential impingement cooling
patent, May 2012
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Spring loaded compliant seal for high temperature use
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Turbine vane with near wall multiple impingement cooling
patent, December 2013
- Liang, George
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Flow control insert in cooling passage for turbine vane
patent, October 2014
- Lee, Ching-Pang; Carrier, Gilles
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Turbine Airfoil Vane With An Impingement Insert Having A Plurality Of Impingement Nozzles
patent-application, April 2014
- Lee, Ching-Pang
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