General Electric Company

Lester H Lee

David Robert Skinner

Steven Charles Walko

Blake Weldon Wilson

Dennis R Ulery

Thomas Francis Taylor

Thomas B Jenkins

Richard T Cuscino

Melvin A Prohl

John P Courtney

Richard W Jones

Kathryn M Johnson

Robert W Nason

Robert P Salerno

A U-shaped subslot liner is disposed in the bottom of a slot in the rotor of a dynamoelectric machine. A stack of conductors and insulating layers is supported by arms of the subslot liner durig manufacture. The subslot liner, together with the lower conductor, defines a coolant channel for conveying a gaseous coolant to the conductors. A slot armor lines the sides of the slots where it is retained against centrifugal acceleration by the subslot liner. In one embodiment, the slot armor passes completely under the subslot liner. In other embodiments, the slot armor is in two pieces, each affixed to the subslot liner.

Subslot liner for rotor of dynamoelectric machine

A heat exchanger includes a number of fluid carrying tubes disposed in a hot gas flow path. One arrangement of heat exchanger tubes includes a plurality of finned serpentine tubes parallel to one another and connected to an inlet header and an outlet header. The present invention discloses a support for a serpentine tube arrangement and a method of construction for a non-contact heat exchanger.

Heat exchanger

Blades in the steam path of a steam turbine diaphragm are assembled into slots in full circular bands and are structurally bonded thereto by welding. After stress relief, the bands are each separated into two 180 degree pieces by line cuts which pass between adjacent blades. The bands are then welded to semicircular rings having planar mating surfaces. The welding of the rings to the bands is performed with minimum welding without concern for whether the welds enter the interface sufficiently far to contact the blades themselves.

Method for fabricating a steam turbine diaphragm

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Braintree, MA, United States of America

Lester H Lee