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Title: Turbine airfoil with outer wall thickness indicators

Abstract

A turbine airfoil usable in a turbine engine and including a depth indicator for determining outer wall blade thickness. The airfoil may include an outer wall having a plurality of grooves in the outer surface of the outer wall. The grooves may have a depth that represents a desired outer surface and wall thickness of the outer wall. The material forming an outer surface of the outer wall may be removed to be flush with an innermost point in each groove, thereby reducing the wall thickness and increasing efficiency. The plurality of grooves may be positioned in a radially outer region of the airfoil proximate to the tip.

Inventors:
; ;
Publication Date:
Research Org.:
Siemens Energy, Inc. (Orlando, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1089419
Patent Number(s):
8,500,411
Application Number:
12/794,972
Assignee:
Siemens Energy, Inc. (Orlando, FL) NETL
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Marra, John J, James, Allister W, and Merrill, Gary B. Turbine airfoil with outer wall thickness indicators. United States: N. p., 2013. Web.
Marra, John J, James, Allister W, & Merrill, Gary B. Turbine airfoil with outer wall thickness indicators. United States.
Marra, John J, James, Allister W, and Merrill, Gary B. Tue . "Turbine airfoil with outer wall thickness indicators". United States. https://www.osti.gov/servlets/purl/1089419.
@article{osti_1089419,
title = {Turbine airfoil with outer wall thickness indicators},
author = {Marra, John J and James, Allister W and Merrill, Gary B},
abstractNote = {A turbine airfoil usable in a turbine engine and including a depth indicator for determining outer wall blade thickness. The airfoil may include an outer wall having a plurality of grooves in the outer surface of the outer wall. The grooves may have a depth that represents a desired outer surface and wall thickness of the outer wall. The material forming an outer surface of the outer wall may be removed to be flush with an innermost point in each groove, thereby reducing the wall thickness and increasing efficiency. The plurality of grooves may be positioned in a radially outer region of the airfoil proximate to the tip.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 06 00:00:00 EDT 2013},
month = {Tue Aug 06 00:00:00 EDT 2013}
}

Patent:

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