General Electric Company

Christopher Walter Sullivan

David Orus Fitts

Robert James Bracken

John Thomas Murphy

Stephen Roger Swan

Norman Douglas Lathrop

Ronald Wayne Korzun

David Ernest Welch

Jeffrey Robert Simkins

Edward Leo Kudlacik

James David Schuhl

Gregory Lee Landry

Yuexi Xiong

A steam turbine apparatus is disclosed. In one embodiment, the steam turbine apparatus comprises: an exhaust shell portion including: a first section having a semi-circular cross-section; an exhaust section contiguous with the first section, the exhaust section including an intermediate-pressure exhaust outlet; and a second section having an oblate spherical cross-section including a substantially flattened portion, the second section configured to fluidly connect with the first section, wherein the first section and the second section form a continuous steam flow path.

Steam turbine shell

A method of assembling a turbine casing is provided. The method includes inserting a bolt assembly through a first opening defined generally vertically through a first flange extending from a first casing member, such that a portion of the bolt assembly extends a distance upward from an upper surface of the first casing flange and such that the bolt assembly is retained within the first opening. The method further includes positioning a second casing member including a second flange including a second opening defined therein against the first casing member such that a portion of the bolt assembly extends through the opening defined in the second casing flange.

Bolt assembly for steam turbine engines and method of assembling the same

The steampath for a steam turbine includes stacked stator rings each mounting inwardly directed nozzles and stacked rotor wheels each mounting outwardly directed buckets mounting blades. By alternately stacking the stator rings and rotor wheels, the nozzles and buckets of the various stages are interdigitated to form a steampath. Each bucket includes a blade and a root received in a generally complementary shaped groove on a wheel.

Stacked steampath and grooved bucket wheels for steam turbines

A wedge-like nozzle radial loading pin, preferably formed from steel, that contacts the bottom of a reaction nozzle along a graduated, that is inclined or stepped, surface. This contact will secure the reaction nozzle radially inward against the retaining surface of the carrier dovetail with sufficient force to maintain the designed airfoil pre-twist.

Method of installing stationary blades of a turbine and turbine structure having a radial loading pin

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Galway, NY, United States of America

Christopher Walter Sullivan