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Title: Airfoil cooling with internal cavity displacement features

Abstract

A turbine airfoil including a central cavity defined by an outer wall including pressure and suction sides extending between and joined at leading and trailing edges, and a chordal axis extends generally centrally between the pressure and suction sides. Rib structures located in the central cavity define radial central channels extending across the chordal axis. Radial near wall passages are defined between the rib structures and each of the pressure and suction sides of the outer wall. The radial near wall passages are each open to an adjacent central channel along a radial extent of both the near wall passages and the adjacent central channel to define a radial flow pass associated with each central channel. The flow passes are connected in series to form a serpentine cooling path extending in the direction of the chordal axis.

Inventors:
;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576251
Patent Number(s):
10428686
Application Number:
15/128,492
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Classifications (CPCs):
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
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 May 08
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Marsh, Jan H., and Messmann, Stephen John. Airfoil cooling with internal cavity displacement features. United States: N. p., 2019. Web.
Marsh, Jan H., & Messmann, Stephen John. Airfoil cooling with internal cavity displacement features. United States.
Marsh, Jan H., and Messmann, Stephen John. Tue . "Airfoil cooling with internal cavity displacement features". United States. https://www.osti.gov/servlets/purl/1576251.
@article{osti_1576251,
title = {Airfoil cooling with internal cavity displacement features},
author = {Marsh, Jan H. and Messmann, Stephen John},
abstractNote = {A turbine airfoil including a central cavity defined by an outer wall including pressure and suction sides extending between and joined at leading and trailing edges, and a chordal axis extends generally centrally between the pressure and suction sides. Rib structures located in the central cavity define radial central channels extending across the chordal axis. Radial near wall passages are defined between the rib structures and each of the pressure and suction sides of the outer wall. The radial near wall passages are each open to an adjacent central channel along a radial extent of both the near wall passages and the adjacent central channel to define a radial flow pass associated with each central channel. The flow passes are connected in series to form a serpentine cooling path extending in the direction of the chordal axis.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Works referenced in this record:

Clearance control for the turbine of a gas turbine engine
patent, September 1997


Airfoil for a gas turbine
patent, January 2011


Turbine airfoil with convectively cooled double shell outer wall
patent, January 1996


Method of manufacturing an air cooled vane with film cooling pocket construction
patent, February 1995


Cooled turbine blade for a gas turbine
patent, April 1997


Turbine blade with spar and shell
patent, April 2012


Air-cooled turbine blade
patent, January 1980


Integrated service tube and impingement baffle for a gas turbine engine
patent, May 2012


Cooled turbine blade tip closure
patent, December 1984


Component having cooling channel with hourglass cross section
patent, April 2015


Turbine airfoil with enhanced heat transfer
patent, August 2003


Composite air cooled turbine rotor blade
patent, February 2013


Thin wall cooling system
patent, November 2002


Cooled turbine blade for a gas turbine engine
patent, February 1985