General Electric Company

Timothy James Pfaffenroth

Gregory Quentin Brown

Andrew David Maduskuie

Glen Alan Aussiker

Nikhil Bhat

Roberto Jose Manzano

Ashley Marie Meenaghan

The present disclosure relates to probe sheaths adapted for a probe housing positioned within a turbomachine fluid flow path. A probe sheath according to the disclosure can include: a non-metallic sheathing material having at least one opening shaped to enclose a first portion of a fluid probe therein, the non-metallic sheathing material being sized for placement within an interior cavity of the probe housing; and a metallic sheathing material mechanically coupled to a first end of the non-metallic sheathing material and sized for placement within the interior cavity of the probe housing. The metallic sheathing material may include at least one opening in fluid communication with the at least one opening of the non-metallic sheathing material, and may be shaped to enclose a second portion of the fluid probe therein.

Sheathing for fluid probe

Prior to instrumenting a turbine wheel for component and developmental testing, a protective coating is applied to the turbine wheel so that sensors can be welded to the coating rather than to the base material of the turbine wheel. But it is important to prevent the dovetail slots, which are critical to the usable life of the turbine wheel, from being coated. Plugs are provided that can be inserted into the dovetail slots prior to applying the coating. Each plug is shaped to match the shape profile of the dovetail slot. The plug prevents critical areas from being coated, removes the need for post processing, and allows a single coating to be applied.

Wheel coating method and apparatus for a turbine

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Taylors, SC, United States of America

Timothy James Pfaffenroth