Rolls-royce Corporation

General Electric Company

Rolls-royce North American Technologies Inc.

Eugene Clemens

Daniel Kent Vetters

Bruce Edward Varney

Jack Dwane Petty, Sr

Jon Conrad Schaeffer

Jacob Charles Perry, Ii

Paul Stuart Wilson

Ariel Caesar Prepena Jacala

Theresa A Brown

Doyle Clyde Lewis

Ariel Caesar-Prepena Jacala

Majid Ahmadi

Frederick Whitfield Dantzler

Thaddeus Jan Strusinski

Micahel Butler

Jeffrey Aaron Killough

Richard A Delehanty

Allyn K Holiday

A gas turbine engine includes a turbine having a plurality of vanes, a plurality of blades, a turbine shroud arranged around the vanes and blades, and a turbine case arranged around the turbine shroud. The turbine shroud is sized to block combustion products from passing over the blades without pushing the blades to rotate. The turbine shroud includes a runner arranged around the blades and a carrier arranged around the runner.

Gas turbine engine with health monitoring system

Turbine shroud with mounted full hoop blade track

Full hoop blade track with interstage cooling air

A weld process cuitable for repairing precipitation-strengthened superalloys, and particularly gamma prime-strengthened nickel-based superalloys. The process entails forming a weldment in a cavity present in a surface of an article formed of a precipitation-strengthened superalloy. The cavity has a root region and a cap region between the root region and the surface of the article. A solid body formed of a superalloy composition is placed in the root region of the cavity so as to occupy a first portion but not a second portion of the root region. A first filler material formed of a solid solution-strengthened superalloy is then weld-deposited in the second portion of the root region. Subsequently, a second filler material formed of a precipitation-strengthened superalloy is weld-deposited in the cap region of the cavity.

Welding process

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.

First-stage high pressure turbine bucket airfoil

Growing community of inventors

Brownsburg, IN, United States of America

Eugene Clemens