DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:

Fluid cooled turbine rotor blade
patent, September 1975


Multiple piece turbine airfoil
patent, November 2010


Air cooled turbine airfoil with sequential impingement cooling
patent, May 2012


Spring loaded compliant seal for high temperature use
patent, October 2013


Flow control insert in cooling passage for turbine vane
patent, October 2014