Patent
Ceramic matrix composite component for a gas turbine engine
TLDR
In this article, the gap between the CMC member and the support member is kept purposefully small to limit the stress developed in the material when it is deflected against the support by the force of a rubbing blade tip.Abstract:
A ceramic matrix composite (CMC) component for a combustion turbine engine ( 10 ). A blade shroud assembly ( 30 ) may be formed to include a CMC member ( 32 ) supported from a metal support member ( 32 ). The CMC member includes arcuate portions ( 50, 52 ) shaped to surround extending portions ( 46, 48 ) of the support member to insulate the metal support member from hot combustion gas ( 16 ). The use of a low thermal conductivity CMC material allows the metal support member to be in direct contact with the CMC material. The gap ( 42 ) between the CMC member and the support member is kept purposefully small to limit the stress developed in the CMC member when it is deflected against the support member by the force of a rubbing blade tip ( 14 ). Changes in the gap dimension resulting from differential thermal growth may be regulated by selecting an angle (A) of a tapered slot ( 76 ) defined by the arcuate portion.read more
Citations
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Patent
Impingement tubes for gas turbine engine assemblies with ceramic matrix composite components
TL;DR: In this article, a turbine shroud adapted for use in a gas turbine engine includes a plurality of metallic carrier segments, and an impingement tube is used to direct cooling air onto the blade track segments.
Patent
Seal ring for turbine shroud in gas turbine engine with arch-style support
Moga Corina,Starr Shaling +1 more
TL;DR: In this article, a gas turbine engine includes a plurality of blade track segments arranged circumferentially around a central axis to form a blade track, each of the plurality of segments includes a first circumferential end face, a second circumfacial end face opposite the first, a radially outer surface, and a radial inner surface opposite the radiallyouter surface.
Patent
Ensemble d'anneau de turbine comprenant une pluralite de secteurs d'anneau en materiau composite a matrice ceramique
Clément Roussille,Thierry Tesson +1 more
TL;DR: In this article, an ensemble d'anneau de turbine comprenant a pluralite of secteurs d'aneau en materiau composite a matrice ceramique and a structure de support d'uneau, is presented.
Patent
Joint for band features on turbine nozzle and fabrication
Underwood Sara Saxton,Decesare Douglas,Tuertscher Michael Ray,Dunn Daniel Gene,Carper Douglas Melton,Feie Brian Gregg +5 more
TL;DR: In this article, a CMC component including a subcomponent, such as a band flowpath, a load bearing wall and a wall support, each comprised of a ceramic matrix composite (CMC) including reinforcing fibers embedded in a matrix.
Patent
Turbine ring assembly comprising a plurality of ring sectors made of composite material with ceramic matrix
TL;DR: In this article, a turbine ring assembly comprising a plurality of annular sectors made of composite material with a ceramic matrix was described. But the authors did not specify the material used.
References
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Patent
Use of high temperature insulation for ceramic matrix composites in gas turbines
TL;DR: In this article, a ceramic composition for insulating components, made of ceramic matrix composites, of gas turbines is provided, which comprises a plurality of hollow oxide-based spheres of various dimensions, a phosphate binder, and at least one oxide filler powder, whereby the binder partially fills gaps between the spheres and the filler powders.
Patent
Turbine ring for a gas turbine engine
TL;DR: A turbine ring has an annular metallic carrier which is mounted within the inside of the turbine casing and within the carrier there is provided a ceramic abradable ring as mentioned in this paper, and a cooling air circuit is provided to regulate the temperature of only the annular carrier such that the latter always exerts a centripetal compression force on the ring under all operational conditions of the gas turbine.
Patent
Turbine ring incorporating elements of a ceramic composition divided into sectors
TL;DR: In this paper, a turbine ring comprises an annular support in two parts and a ring of ceramic sectors for sealing purposes, which are interconnected by an axial groove and a sliding male part.
Patent
Ceramic faced outer air seal for gas turbine engines
Eaton Harry Edwin,Richard Novak +1 more
TL;DR: In this article, the ceramic facing material of an outer air seal (30) at the leading edge region (36) is densified by a plasma gun to produce a glazed area (52) which is resistant to erosion.
Patent
Turbine blade shroud assembly
TL;DR: In this paper, a turbine blade shroud assembly for a gas turbine engine includes a metal substrate ring on the engine, a continous ceramic barrier ring inside the substrate ring and exposed to hot gas in a hot gas flow path of the engine and a wire mesh compliant ring between the barrier and substrate rings.