General Electric Company

David Bruce Knorr

Steven Sebastian Burdgick

David Orus Fitts

David Robert Schumacher

Kathleen Blanche Morey

Laurence Scott Duclos

Sean Christopher Morrissey

Anand Aravindrao Kulkarni

Nicholas Daniel Viscio

Various embodiments include a rotor key member having: a body with a primary axis extending in a direction substantially perpendicular to an axial direction in a steam turbine, the body including: a first pair of opposing sides; a second pair of opposing sides extending between the first pair of opposing sides; a top surface and a bottom surface extending between the second pair of opposing sides; and a fillet, bevel or chamfer edge extending between a first one of the first pair of opposing sides and the bottom surface and extending an entire length of the body along the primary axis; and a slot within the body, the slot extending a portion of a length of the body along the primary axis between the second pair of opposing sides and forming an opening in a second one of the first pair of opposing sides.

Steam turbine rotor seal key member, related assembly and steam turbine

A nozzle assembly includes at least one stationary nozzle and an outer ring having a predefined shape. The outer ring includes at least one groove defined therein configured to receive at least a portion of the at least one stationary nozzle. The nozzle assembly also includes an attachment member coupled between the stationary nozzle and the outer ring. The attachment member has a first configuration at a first nozzle assembly operating temperature a second configuration at a second nozzle assembly operating temperature.

Methods and systems for securing turbine nozzles

Embodiments of the invention relate generally to turbine blades and, more particularly, to the formation of cooling channels on a surface of a turbine blade and turbine blades including such cooling channels. In one embodiment, the invention provides a method of forming a cooling channel along a surface of a turbine blade, the method comprising: applying a first mask material to a first portion of a surface of a turbine blade; forming a first barrier layer atop the first mask material and atop a second portion of the surface of the turbine blade; removing the first mask material and the barrier layer atop the first mask material to expose the first portion of the surface of the turbine blade; and etching the first portion of the surface of the turbine blade to form a cooling channel along the surface of the turbine blade.

Turbine blade cooling channel formation

Growing community of inventors

Clifton Park, NY, United States of America

David Bruce Knorr