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Title: Airfoil structure

Abstract

Past airfoil configurations have been used to improve aerodynamic performance and engine efficiencies. The present airfoil configuration further increases component life and reduces maintenance by reducing internal stress within the airfoil itself. The airfoil includes a chord and a span. Each of the chord and the span has a bow being summed to form a generally "C" configuration of the airfoil. The generally "C" configuration includes a compound bow in which internal stresses resulting from a thermal temperature gradient are reduced. The structural configuration reduces internal stresses resulting from thermal expansion.

Inventors:
 [1];  [2]
  1. Poway, CA
  2. Alpine, CA
Issue Date:
Research Org.:
SOLAR TURBINES INC
Sponsoring Org.:
USDOE
OSTI Identifier:
871318
Patent Number(s):
5706647
Assignee:
Solar Turbines Incorporated (San Diego, CA)
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:  
AC21-93MC30246
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
airfoil; structure; past; configurations; improve; aerodynamic; performance; engine; efficiencies; configuration; increases; component; life; reduces; maintenance; reducing; internal; stress; chord; span; bow; summed; form; compound; stresses; resulting; thermal; temperature; gradient; reduced; structural; expansion; temperature gradient; thermal expansion; reducing internal; component life; internal stresses; reduces maintenance; increases component; internal stress; thermal temperature; reduces main; /60/415/

Citation Formats

Frey, Gary A, and Twardochleb, Christopher Z. Airfoil structure. United States: N. p., 1998. Web.
Frey, Gary A, & Twardochleb, Christopher Z. Airfoil structure. United States.
Frey, Gary A, and Twardochleb, Christopher Z. Thu . "Airfoil structure". United States. https://www.osti.gov/servlets/purl/871318.
@article{osti_871318,
title = {Airfoil structure},
author = {Frey, Gary A and Twardochleb, Christopher Z},
abstractNote = {Past airfoil configurations have been used to improve aerodynamic performance and engine efficiencies. The present airfoil configuration further increases component life and reduces maintenance by reducing internal stress within the airfoil itself. The airfoil includes a chord and a span. Each of the chord and the span has a bow being summed to form a generally "C" configuration of the airfoil. The generally "C" configuration includes a compound bow in which internal stresses resulting from a thermal temperature gradient are reduced. The structural configuration reduces internal stresses resulting from thermal expansion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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