Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Apertured or permeable
Reexamination Certificate
2007-03-06
2007-03-06
Edgar, Richard A. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Apertured or permeable
C416S24100B, C060S753000, C060S754000
Reexamination Certificate
active
10984292
ABSTRACT:
A method of cooling a gas turbine engine component having a perforate metal wall includes providing a plurality of pores in the wall, wherein the pores extend substantially perpendicularly through the wall, and wherein the pores are covered and sealed closed at first ends thereof by a thermal barrier coating disposed over a first surface of the wall, and providing a plurality of film cooling holes in the wall, wherein the holes extend substantially perpendicularly through the wall and the thermal barrier coating. The method also includes providing cooling fluid to the plurality of pores and the plurality of film cooling holes along a second surface of the wall, channeling the cooling fluid through the pores for back side cooling an inner surface of the thermal barrier coating, and channeling the cooling fluid through the holes for film cooling an outer surface of the thermal barrier coating.
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International Search Report; Place of Search MUNICH; Dated Feb. 22, 2006; Reference 124619/11067; Application No. 05256817.7-2315; 8 Pgs.
Bunker Ronald Scott
Darolia Ramgopal
Lee Ching-Pang
Maclin Harvey Michael
Andes William Scott
Armstrong Teasdale LLP
Edgar Richard A.
General Electric Company
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