Patent
Ceramic turbine shroud assembly
TLDR
In this article, a high temperature turbine shroud assembly for an aircraft gas turbine engine comprising a plurality of arcuate ceramic blocks arranged in a ring is presented, supported by a pair of annular support members which retain the blocks in the assembly.Abstract:
A high temperature turbine shroud assembly for an aircraft gas turbine engine comprising a plurality of arcuate ceramic blocks arranged in a ring. The blocks are supported by a pair of annular support members which retain the blocks in the assembly. Spring-like fingers associated with the support members apply a preloaded force against a pair of slanted dovetail surfaces on the blocks to force the blocks against rigid stops formed upon the annular support members, thereby establishing their proper radial position within the assembly. The preload applied by the fingers accommodates the thermal expansion differences between the ceramic blocks and the metallic support members. In an alternative embodiment, the blocks are retained between cooperating rigid legs extending from the annular support members and wedged radially inwardly into position by a preloaded spring contacting the back side of the blocks. Heat transfer between the blocks and metallic support members is minimized by providing point or line contact between components, thus reducing the contact area available for heat conduction.read more
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Patent
Low-pressure turbine shroud
TL;DR: A turbine shroud is formed by a ring of butted shroud segments, and each turbine shroud segment has a radially inwardly projecting annular flange which is seated on a radial outwardly facing surface of an annular tip of the outer shroud of the downstream nozzle stage as discussed by the authors.
Patent
Mounting apparatus for low-ductility turbine shroud
Jason David Shapiro,Roger Lee Doughty,Aaron Michael Dziech,Victor Hugo Silva Correia,Lampes Elias Harry,Robert Carella,Brian Kenneth Corsetti +6 more
TL;DR: In this article, an annular support member (14), a turbine shroud (12), and a spring (32) are arranged between the support member and the turbine shroud to push the shroud to a concentric position within the support members.
Patent
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TL;DR: In this article, an electrical assembly for use in various operating environments such as a casing of a combustion turbine is provided, which includes an electrical energy harvesting device disposed in a component within the turbine to convert a form of energy present within the casing to electrical energy.
Patent
Turbine ring assembly
Franck Roger Denis Denece,Alain Dominique Gendraud,Georges Habarou,Hubert Illand,Damien Bonneau +4 more
TL;DR: A turbine ring assembly includes a ring support structure and a plurality of ring sectors, each including a single piece of ceramic matrix composite material as discussed by the authors, each of which includes a first portion forming an annular base with an inside face defining the inside face of the turbine ring and an outside face from which there extends two tab-forming portions including ends that are engaged in housings in the ring structure.
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Patent
Cooled turbine blade ring assembly
TL;DR: A cooling air chamber directs cooling fluid to each stator vane retainer arrangement and to each ring segment which is circumferentially disposed about each rotor disc as mentioned in this paper, while the flow of cooling fluid maintains the heat shield and ring segments at a controlled temperature.
Patent
Ceramic crossarm seal for gas turbine regenerators
TL;DR: In this paper, a thin walled steel case has a ceramic shoe projecting through an opening in one side thereof, and externally facing shoulders along the longitudinal edges of the shoe bear against the edges of a case.