General Electric Company

Laurence Scott Duclos

Robert James Bracken

William Edward Adis

David Orus Fitts

Timothy Scott McMurray

Fred Thomas Willett, Jr

Bernard Arthur Couture, Jr

Yuefeng Luo

Michael Dennis Mack

David Robert Schumacher

Mark William Kowalczyk

Nicholas Andrew Tisenchek

Roy Paul Swintek

James Royce Howes

David Bruce Knorr

Mark Kevin Bowen

John Thomas Basirico

Sterling Hathaway

Anand Aravindrao Kulkarni

Ron W Korzun

Scott Leroy Irwin

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

The present application provides a turbine rotor and blade assembly for a steam turbine. The turbine rotor and blade assembly may include a rotor, a number of buckets positioned about the rotor and a locking blade positioned about the rotor. The locking blade may include a base, a first side hook, and a second side hook. The locking blade may include a first side pilot hole defined between the base and the first side hook and a second side pilot hole defined between the base and the second side hook.

Turbine rotor and blade assembly with multi-piece locking blade

A turbine bucket including an integral rotation controlling feature is disclosed. In one embodiment, a turbine bucket includes: a blade section having an inner radial end and an outer radial end; an integral cover section connected to the outer radial end of the blade section; and a base section for engaging a rotor body, the base section connected to the inner radial end, wherein the base section includes: a central body; a set of tangs extending axially from the central body; a set of flanges radially inboard of the set of tangs and extending axially from the central body; and an integral rotation controlling feature extending from the central body, wherein the rotation controlling feature engages a radial opening in the rotor body. The integral rotation controlling feature is sized to limit rotation of the base section, when the turbine bucket is engaged with a rotor body.

Turbine bucket including an integral rotation controlling feature

Systems, methods and devices adapted to ease installation of turbine bucket assemblies about a rotor and to reduce related stress concentrations in the rotor are disclosed. In one embodiment, an insert includes: a base portion adapted to complement an entry slot in a rotor of a turbine; and a neck portion extending radially outboard from the base portion, the neck portion adapted to complement a post of the rotor to form a substantially continuous dovetail about the rotor.

Turbine rotor insert and related method of installation

Conventional electrochemical machining process requires fixed shaped tool cathodes, which makes retooling time consuming and expensive. Flexible tool cathodes include elastically deformable cathodes that can deform in two or three dimensions and can adapt to the contour of the workpiece while the workpiece is moving relative to the flexible tool cathode. That is, the flexible tool cathode can perform tracing. Certain flexible tool cathodes can be also used for special configurations such corners and edges. The flexible tool cathodes can be used to polish, finish, or shape the workpiece through electrochemical processes.

Method, apparatus and system for flexible electrochemical processing

The turbine includes a diaphragm having a seal carrier mounted in opposition to seal teeth carried by the rotary component. The seal carrier includes a seal face having a coating of abradable material enabling the rotary component to abrade the material from the seal face. The seal carrier is removable from the diaphragm and is carried by an axial extension integral with or removable from the outer diaphragm ring. A spring may be interposed between the seal carrier and the stationary component.

Removable abradable seal carriers for sealing between rotary and stationary turbine components

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Thorndike, ME, United States of America

Laurence Scott Duclos