General Electric Company

Andrew Grafitti

Brian Denver Potter

Jonathan Matthew Lomas

Suryarghya Chakrabarti

Thomas William Vandeputte

James Tyson Balkcum, Iii

Felipe Roman-Morales

Gareth William David Lewis

Ronald Lee Souther

Louis Veltre

James Tyson Balkcum Iii

A rotor assembly includes plural blades and damping inserts. The blades include a carrier shroud and a lid shroud extending from an airfoil of the respective blade in generally opposite directions. The carrier shrouds define pockets at distal ends thereof. The damping inserts are disposed in the pockets of the carrier shrouds of the blades and free-floating within the pockets. The damping inserts are configured to dampen vibrations of the blades during rotation of the blades and the rotor disk via engaging an interior surface within the corresponding pocket of the carrier shroud and engaging a distal end of the lid shroud of the neighboring blade. A contact force applied by each damping insert on the distal end of the lid shroud of the neighboring blade is based on a rotational speed of the blades and the rotor disk.

Damping inserts and methods for shrouded turbine blades

A turbomachine bucket may include an airfoil, a shank coupled to the airfoil, and an angel wing coupled to the shank, the angel wing having an axially extending tip sized to seal with a plurality of discouragers, each discourager having a different axial extent. Various methods for modifying an angel wing to accommodate different sized discouragers are also disclosed.

Turbomachine bucket having angel wing for differently sized discouragers and related methods

An article of manufacture having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a table. The table selected from the TABLE. Wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z in inches. The profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape.

Airfoil shape

Growing community of inventors

Greenville, SC, United States of America

Andrew Grafitti