US Patent No: 6,339,208

Number of patents in Portfolio can not be more than 2000

Method of forming cooling holes

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Abstract

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A method of forming cooling holes in a gas turbine engine component. The method includes the steps of forming a hole in the component extending between a first surface of the component and a second surface of the component opposite the first surface and supplying pressurized air to the hole from the second surface of the component. The method also includes the step of sensing a parameter representative of air flow through the hole. Further, the method includes enlarging the hole until the sensed parameter represents a preselected air flow rate through the hole.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GENERAL ELECTRIC COMPANYSCHENECTADY, NY30546

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ash, Clarence A Madisonville, KY 1 7
Rockstroh, Todd J Maineville, OH 14 248
Scheidt, Wilbur D Cincinnati, OH 9 279

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (5)
4,960,970 Method and apparatus for acoustic breakthrough detection 7 1989
5,683,600 Gas turbine engine component with compound cooling holes and method for making the same 32 1993
5,747,769 Method of laser forming a slot 27 1995
5,773,790 Beam blocking material and method for beam drilling and inspecting cooling holes 16 1997
6,054,673 Method and apparatus for laser drilling 19 1997
 
ROLLS-ROYCE PLC (4)
5,049,722 Laser barrier material and method of laser drilling 19 1990
5,083,006 Laser drilling of components 4 1991
5,140,127 Laser barrier material 22 1991
5,222,617 Drilling turbine blades 33 1991
 
CHROMALLOY GAS TURBINE CORPORATION (1)
5,837,964 Laser drilling holes in components by combined percussion and trepan drilling 19 1998
 
ELECTRO SCIENTIFIC INDUSTRIES, INC. (1)
5,614,114 Laser system and method for plating vias 141 1994
 
LASAG AG (1)
4,220,842 Method of removing material from a workpiece 19 1977
 
Rolls-Royce Inc. (1)
4,873,414 Laser drilling of components 36 1988
 
Summit Technology, Inc. (1)
4,941,093 Surface erosion using lasers 198 1986
 
UNITED TECHNOLOGIES CORPORATION (1)
5,914,060 Method of laser drilling an airfoil 10 1998

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (3)
6,441,341 Method of forming cooling holes in a ceramic matrix composite turbine components 19 2000
6,670,026 Ceramic matrix composite turbine components 4 2002
7,784,183 System and method for adjusting performance of manufacturing operations or steps 0 2005
 
CANON KABUSHIKI KAISHA (1)
6,747,244 Laser working apparatus, laser working method, method for producing ink jet recording head utilizing such laser working apparatus or method, and ink jet recording head formed by such producing method 4 2000
 
SIEMENS AKTIENGESELLSCHAFT (1)
7,075,083 Method for examining the structure of through-holes of a component 1 2003
 
SIEMENS ENERGY, INC. (1)
6,723,951 Method for reestablishing holes in a component 15 2003
 
UNITED TECHNOLOGIES CORPORATION (1)
8,710,392 Electric discharge machining hole drilling 0 2011

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