James B Fehlberg

US Patent:

6769879, Aug 3, 2004

Filed:

Jul 11, 2003

Appl. No.:

10/616911

Inventors:

Peter Gaines Cleveland - Greenville SC
Thomas Bradley Beddard - Simpsonville SC
Scott Matthew Sparks - Simpsonville SC
Joseph Anthony Weber - Simpsonville SC
James Bernard Fehlberg - Simpsonville SC

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 514

US Classification:

416243, 416223 A, 416DIG 2

Abstract:

First stage turbine buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table I wherein X and Y values are in inches and the Z values are non-dimensional values from 0. 05 span to 0. 95 span convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape. The X, Y and Z distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelope of Â0. 150 inches in directions normal to the surface of the airfoil.

US Patent:

6779977, Aug 24, 2004

Filed:

Dec 17, 2002

Appl. No.:

10/320655

Inventors:

Benjamin Arnette Lagrange - Simpsonville SC
Edward Lee McGrath - Easley SC
James Bernard Fehlberg - Simpsonville SC
Anthony Aaron Chiurato - Simpsonville SC

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 514

US Classification:

416223A, 416DIG 2

Abstract:

Second stage turbine buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table I wherein X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X, Y and Z distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelop of Â0. 160 inches in directions normal to the surface of the airfoil.

US Patent:

6804612, Oct 12, 2004

Filed:

Oct 30, 2001

Appl. No.:

10/020588

Inventors:

Cedric Chow - Rego Park NY
Kelly Crotty - Greenville SC
John Drohan - Greer SC
James Fehlberg - Simpsonville SC
Arlie Russell Martin - Simpsonville SC
Thad Morton - Greenville SC
Todd Nemec - Guilderland NY
David Pesetsky - Greenville SC
Robert Russell Priestley - Balliston Lake NY
Ming Zhou - Reading MA

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 1900

US Classification:

702 34, 702181, 702136, 60772, 60806, 60595, 700 29

Abstract:

Automated systems for performing integrated analyses. In one embodiment, an integrated analysis system can be used to comprehensively evaluate the effects of changes in hardware configuration or operating conditions on gas turbine power plant performance and economics. The system evaluates these changes by concurrently analyzing a number of different aspects of the power plant while ensuring that the data used in each of the different analyses is consistent. These analyses can include turbine and compressor aerodynamic analysis, cooling and leakage flow analysis, heat transfer analysis, part life analysis, heat balance analysis, cost analysis and overall power plant performance and economic analysis.

US Patent:

6887041, May 3, 2005

Filed:

Mar 3, 2003

Appl. No.:

10/376246

Inventors:

Robert Wayne Coke - Mauldin SC, US
James Bernard Fehlberg - Simpsonville SC, US
Charles Andrew Malinowski - Mauldin SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D009/04

US Classification:

415191, 415193, 4152082, 4152112

Abstract:

The third stage nozzle has an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein X and Y values are in inches and define airfoil profile sections at each distance Z and Z is a non-dimensional value from 0 to 1 convertible to Z distances in inches by multiplying the Z values of Table I by a height of the airfoil in inches. The profile sections at the Z distances are joined smoothly with one another to form a complete airfoil shape. The X and Y distances may be scalable to provide a scaled-up or scaled-down airfoil for the nozzle. The nominal airfoil given by the X, Y and Z distances lies within an envelope of 0. 100 inches.

US Patent:

6722853, Apr 20, 2004

Filed:

Nov 22, 2002

Appl. No.:

10/301724

Inventors:

David John Humanchuk - Simpsonville SC
Matthew Troy Hafner - Honea Path SC
James B. Fehlberg - Simpsonville SC

Assignee:

General Electric Company - Schenectady NJ

International Classification:

F01D 514

US Classification:

416223A, 416DIG 2

Abstract:

The second stage nozzle has an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein X and Y values are in inches and define airfoil profile sections at each distance Z and Z is a non-dimensional value from 0 to 1 convertible to Z distances in inches by multiplying the Z values of Table I by a height of the airfoil in inches. The profile sections at the Z distances are joined smoothly with one another to form a complete airfoil shape. The X and Y distances may be scalable to provide a scaled-up or scaled-down airfoil for the nozzle. The nominal airfoil given by the X, Y and Z distances lies within an envelope of Â0. 100 inches.