Ge Gas Power
Senior Manager of Materials and Processes Engineering
Ge Power Systems Sep 1998 - Sep 2002
Technology Mbb
Ge Power Sep 1998 - Sep 2002
Senior Engineering Manager
Ge Aviation Dec 1989 - Sep 1998
Senior Engineer
Education:
University of Pittsburgh 1980 - 1989
Doctorates, Doctor of Philosophy, Metallurgical Engineering, Philosophy
University of Pittsburgh
Master of Science, Doctorates, Bachelors, Masters, Doctor of Philosophy, Bachelor of Science
Skills:
Engineering Management Six Sigma Engineering Manufacturing Gas Turbines Root Cause Analysis Materials Power Generation Process Engineering Turbines Project Engineering Power Plants Energy Lean Manufacturing Oil/Gas Instrumentation
Irene T. Spitsberg - Loveland OH David J. Wortman - Niskayuna NY Jon C. Schaeffer - Greenville SC Joseph D. Rigney - Milford OH
Assignee:
General Electric Company - Cincinnati OH
International Classification:
B32B 1504
US Classification:
428652, 428632, 428680, 416241 B
Abstract:
A nickel-base superalloy substrate has an overlying protective coating including a modified aluminum-containing protective layer. The modified aluminum-containing protective layer is formed of nickel, aluminum, calcium in an amount of from about 50 to about 300 parts per million by weight, and, optionally, elements interdiffused into the modified aluminum-containing protective layer from the substrate. Magnesium or barium may be used instead of or in addition to the calcium. A ceramic layer may overlie the modified aluminum-containing protective layer.
Salvaged Castings And Methods Of Salvaging Castings With Defective Cast Cooling Bumps
Castings for gas turbine parts exposed on one side to a high-temperature fluid medium have cast-in bumps on an opposite cooling surface side to enhance heat transfer. Areas on the cooling surface having defectively cast bumps, i. e. , missing or partially formed bumps during casting, are coated with a braze alloy and cooling enhancement material to salvage the part.
Robert Romany By - Simpsonville SC Tommy Dee Hayes - Pelzer SC Paul Francis Norton - Greenville SC Jon Conrad Schaeffer - Greenville SC Ariel Caesar-Prepena Jacala - Simpsonville SC
Assignee:
General Electric Company - Schenectady NY
International Classification:
F01D 514
US Classification:
416233A, 416DIG 2, 415191
Abstract:
The first-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinates defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.
Method Of Salvaging Castings With Defective Cast Cooling Bumps
Robert Alan Johnson - Simpsonville SC Jon Conrad Schaeffer - Greenville SC Nesim Abuaf - Lincoln City OR
Assignee:
General Electric Company - Schenectady NY
International Classification:
C23C 408
US Classification:
427449, 427456, 427142, 427140
Abstract:
Castings for gas turbine parts exposed on one side to a high-temperature fluid medium have cast-in bumps on an opposite cooling surface side to enhance heat transfer. Areas on the cooling surface having defectively cast bumps, i. e. , missing or partially formed bumps during casting, are thermally sprayed to provide a metallic cooling enhancement surface layer to salvage the part.
Jon C. Schaeffer - Greenville SC Robert W. Bruce - Loveland OH
Assignee:
General Electric Company - Schenectady NY
International Classification:
B32B 1504
US Classification:
428632, 428633, 428679, 428680, 428336, 416241 B
Abstract:
A thermal insulating ceramic layer for use on metal alloy components exposed to hostile thermal and chemical environment, such as a gas turbine engine used to generate electricity. The preferred thermal barrier layer is formed using dense vertical cracking and formed of zirconia that is partially stabilized by yttria in a preferred amount of less than 4 weight percent and about 1 weight percent Hafnia. The ceramic layer is optimized to protect the underlying superalloy component from erosion, chipping, and handling, while reducing the cost of the protective layer. An alternative method of preparing the thermal barrier coating uses electron beam physical vapor deposition.
Susan Marie Hyde - Piedmont SC, US Robert Romany By - Simpsonville SC, US Jon Conrad Schaeffer - Simpsonville SC, US Calvin Levy Sims - Mauldin SC, US Michael Ernest Boisclair - Malta NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F01D005/14
US Classification:
416223A, 416243, 416DIG 2
Abstract:
Fourth 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 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 and Y 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 0. 150 inches in directions normal to the surface of the airfoil.
Nickel Base Superalloys And Turbine Components Fabricated Therefrom
Gregory Keith Bouse - Niskayuna NY, US Michael Francis Henry - Niskayuna NY, US Jon Conrad Schaeffer - Greenville SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
C22F001/10
US Classification:
148675
Abstract:
A nickel base superalloy suitable for the production of a large, crack-free nickel-base superalloy gas turbine bucket suitable for use in a large land-based utility gas turbine engine, comprising, by weight percents:.
Susan Marie Hyde - Piedmont SC, US Robert Romany By - Simpsonville SC, US Judd Dodge Tressler - Mason OH, US Jon Conrad Schaeffer - Simpsonville SC, US Calvin Levy Sims - Mauldin SC, US
Assignee:
General Electric Company - Schenectady
International Classification:
F01D005/14
US Classification:
416223R, 416243, 416223 A, 416DIG 2
Abstract:
Third 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 0. 938 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 and Y 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 0. 150 inches in directions normal to the surface of the airfoil.
John Schaeffer (born March 14, 1951) is a renowned American sports and fitness trainer, author and nutritionist for over forty years, best known as the athletic trainer
Ferrell/Burgundy brought all his signature moves, slowly leaning into co-anchor's Amber Schatz's screen, before warning her that he's married, so "Don't get any ideas." He casually reaches into sportscaster Jon Schaeffer's frame and pats him on the shoulder mid-report at one point as well.
Jon Schaeffer (1975-1978), Dave Stanulis (1959-1963), Robert Lieberman (1964-1969), Ron Leuty (1974-1975), Dave Peterson (1967-1968), Robert Kettlehut (1971-1976)