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Title: Modular turbine airfoil and platform assembly with independent root teeth

Abstract

A turbine airfoil (22E-H) extends from a shank (23E-H). A platform (30E-H) brackets or surrounds a first portion of the shank (23E-H). Opposed teeth (33, 35) extend laterally from the platform (30E-H) to engage respective slots (50) in a disk. Opposed teeth (25, 27) extend laterally from a second portion of the shank (29) that extends below the platform (30E-H) to engage other slots (52) in the disk. Thus the platform (30E-H) and the shank (23E-H) independently support their own centrifugal loads via their respective teeth. The platform may be formed in two portions (32E-H, 34E-H), that are bonded to each other at matching end-walls (37) and/or via pins (36G) passing through the shank (23E-H). Coolant channels (41, 43) may pass through the shank beside the pins (36G).

Inventors:
; ;
Issue Date:
Research Org.:
Siemens Energy, Inc. (Orlando, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1088986
Patent Number(s):
8496443
Application Number:
12/793,935
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Classifications (CPCs):
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
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Campbell, Christian X, Davies, Daniel O, and Eng, Darryl. Modular turbine airfoil and platform assembly with independent root teeth. United States: N. p., 2013. Web.
Campbell, Christian X, Davies, Daniel O, & Eng, Darryl. Modular turbine airfoil and platform assembly with independent root teeth. United States.
Campbell, Christian X, Davies, Daniel O, and Eng, Darryl. Tue . "Modular turbine airfoil and platform assembly with independent root teeth". United States. https://www.osti.gov/servlets/purl/1088986.
@article{osti_1088986,
title = {Modular turbine airfoil and platform assembly with independent root teeth},
author = {Campbell, Christian X and Davies, Daniel O and Eng, Darryl},
abstractNote = {A turbine airfoil (22E-H) extends from a shank (23E-H). A platform (30E-H) brackets or surrounds a first portion of the shank (23E-H). Opposed teeth (33, 35) extend laterally from the platform (30E-H) to engage respective slots (50) in a disk. Opposed teeth (25, 27) extend laterally from a second portion of the shank (29) that extends below the platform (30E-H) to engage other slots (52) in the disk. Thus the platform (30E-H) and the shank (23E-H) independently support their own centrifugal loads via their respective teeth. The platform may be formed in two portions (32E-H, 34E-H), that are bonded to each other at matching end-walls (37) and/or via pins (36G) passing through the shank (23E-H). Coolant channels (41, 43) may pass through the shank beside the pins (36G).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {7}
}

Works referenced in this record:

Turbine Blade Lock
patent, June 1960


Locking of rotor blades on a rotor disk
patent, April 1984


Turbine blades made from multiple single crystal cast superalloy segments
patent, December 2001


Turbine blade arrangement
patent, April 2004


Turbine Stator Blade
patent, September 1957


Prestressed Compressor Blade
patent, April 1960


Gas turbine blade with cooled platform
patent, June 1997


Cooled turbine spar shell blade construction
patent, July 2006


Root notched turbine blade
patent, September 2004


Rotor blade for a rotary machine
patent, March 1987


Rotor blade for a rotary machine
patent, April 1986


Cooled turbine vane
patent, October 1981