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Title: Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling

Abstract

A gas turbine engine including: an ambient-air cooling circuit (10) having a cooling channel (26) disposed in a turbine blade (22) and in fluid communication with a source (12) of ambient air: and an pre-swirler (18), the pre-swirler having: an inner shroud (38); an outer shroud (56); and a plurality of guide vanes (42), each spanning from the inner shroud to the outer shroud. Circumferentially adjacent guide vanes (46, 48) define respective nozzles (44) there between. Forces created by a rotation of the turbine blade motivate ambient air through the cooling circuit. The pre-swirler is configured to impart swirl to ambient air drawn through the nozzles and to direct the swirled ambient air toward a base of the turbine blade. The end walls (50, 54) of the pre-swirler may be contoured.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1167028
Patent Number(s):
8,926,267
Application Number:
13/766,909
Assignee:
Siemens Energy, Inc. (Orlando, FL) NETL
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Feb 14
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Lee, Ching-Pang, Tham, Kok-Mun, Schroeder, Eric, Meeroff, Jamie, Miller, Jr., Samuel R, and Marra, John J. Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling. United States: N. p., 2015. Web.
Lee, Ching-Pang, Tham, Kok-Mun, Schroeder, Eric, Meeroff, Jamie, Miller, Jr., Samuel R, & Marra, John J. Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling. United States.
Lee, Ching-Pang, Tham, Kok-Mun, Schroeder, Eric, Meeroff, Jamie, Miller, Jr., Samuel R, and Marra, John J. Tue . "Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling". United States. doi:. https://www.osti.gov/servlets/purl/1167028.
@article{osti_1167028,
title = {Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling},
author = {Lee, Ching-Pang and Tham, Kok-Mun and Schroeder, Eric and Meeroff, Jamie and Miller, Jr., Samuel R and Marra, John J},
abstractNote = {A gas turbine engine including: an ambient-air cooling circuit (10) having a cooling channel (26) disposed in a turbine blade (22) and in fluid communication with a source (12) of ambient air: and an pre-swirler (18), the pre-swirler having: an inner shroud (38); an outer shroud (56); and a plurality of guide vanes (42), each spanning from the inner shroud to the outer shroud. Circumferentially adjacent guide vanes (46, 48) define respective nozzles (44) there between. Forces created by a rotation of the turbine blade motivate ambient air through the cooling circuit. The pre-swirler is configured to impart swirl to ambient air drawn through the nozzles and to direct the swirled ambient air toward a base of the turbine blade. The end walls (50, 54) of the pre-swirler may be contoured.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 06 00:00:00 EST 2015},
month = {Tue Jan 06 00:00:00 EST 2015}
}

Patent:

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