Method for forming a liquid cooled airfoil for a gas turbine
Abstract
A method for forming a liquid cooled airfoil for a gas turbine is disclosed. A plurality of holes are formed at spaced locations in an oversized airfoil blank. A pre-formed composite liquid coolant tube is bonded into each of the holes. The composite tube includes an inner member formed of an anti-corrosive material and an outer member formed of a material exhibiting a high degree of thermal conductivity. After the coolant tubes have been bonded to the airfoil blank, the airfoil blank is machined to a desired shape, such that a portion of the outer member of each of the composite tubes is contiguous with the outer surface of the machined airfoil blank. Finally, an external skin is bonded to the exposed outer surface of both the machined airfoil blank and the composite tubes.
- Inventors:
-
- Clifton Park, NY
- Ballston Spa, NY
- Amsterdam, NY
- Issue Date:
- Research Org.:
- General Electric Co., Boston, MA (United States)
- OSTI Identifier:
- 863791
- Patent Number(s):
- 4249291
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23P - OTHER WORKING OF METAL
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- DOE Contract Number:
- EX-76-C-01-1806
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; forming; liquid; cooled; airfoil; gas; turbine; disclosed; plurality; holes; formed; spaced; locations; oversized; blank; pre-formed; composite; coolant; tube; bonded; inner; anti-corrosive; material; outer; exhibiting; degree; thermal; conductivity; tubes; machined; desired; shape; portion; contiguous; surface; finally; external; exposed; coolant tubes; cooled air; liquid coolant; composite tube; thermal conductivity; gas turbine; outer surface; desired shape; coolant tube; liquid cooled; spaced locations; cooled airfoil; material exhibiting; corrosive material; /29/228/416/
Citation Formats
Grondahl, Clayton M, Willmott, Leo C, and Muth, Myron C. Method for forming a liquid cooled airfoil for a gas turbine. United States: N. p., 1981.
Web.
Grondahl, Clayton M, Willmott, Leo C, & Muth, Myron C. Method for forming a liquid cooled airfoil for a gas turbine. United States.
Grondahl, Clayton M, Willmott, Leo C, and Muth, Myron C. Thu .
"Method for forming a liquid cooled airfoil for a gas turbine". United States. https://www.osti.gov/servlets/purl/863791.
@article{osti_863791,
title = {Method for forming a liquid cooled airfoil for a gas turbine},
author = {Grondahl, Clayton M and Willmott, Leo C and Muth, Myron C},
abstractNote = {A method for forming a liquid cooled airfoil for a gas turbine is disclosed. A plurality of holes are formed at spaced locations in an oversized airfoil blank. A pre-formed composite liquid coolant tube is bonded into each of the holes. The composite tube includes an inner member formed of an anti-corrosive material and an outer member formed of a material exhibiting a high degree of thermal conductivity. After the coolant tubes have been bonded to the airfoil blank, the airfoil blank is machined to a desired shape, such that a portion of the outer member of each of the composite tubes is contiguous with the outer surface of the machined airfoil blank. Finally, an external skin is bonded to the exposed outer surface of both the machined airfoil blank and the composite tubes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}