Patent
Arrangement for adjusting the diameter of a gas turbine stator
TLDR
In this paper, the diameter of a gas turbine stator is adjusted by adjusting a wall extending from the casing to one of the rings and separating two chambers, at least one of which is realized by cavities through a junction of hooks.Abstract:
An arrangement for adjusting the diameter of a gas turbine stator includes a casing having a main portion and rings bordering a vein of a gas flow and located in front of respective levels of mobile blades of a rotor, and communication passages of a gas flow under pressure. The rings are surrounded by the casing and fixed thereto by circular groups of spacers. The rings include a wall extending from the casing to one of the rings and separating two chambers. The wall includes an outside edge curved into a spacer hook and engaged between the main portion of the casing and a respective appendage curved into a casing hook associated with the spacer hook. The communication passages of the gas flow under pressure exist between the chambers. At least one of the communication passages is realized by cavities through a junction of hooks.read more
Citations
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Patent
Stator assembly, module and method for forming a rotary machine
TL;DR: In this paper, a stator assembly for a rotary machine having an array of wall segments for bounding a working medium flow path is described, and various construction details which provide a sealing structure for the segments are developed.
Patent
Segmented ring for an industrial gas turbine
TL;DR: In this article, the authors describe the BOAS, which includes a plurality of stiffener ribs, leading edge pocket, trailing edge pocket and middle pocket with pin fin to enhance the heat transfer effect.
Patent
Blade outer air seal for a gas turbine engine
TL;DR: A blade outer air seal (BOAS) segment according to an exemplary embodiment of the present disclosure can include a seal body having a radially inner face having a ledge and an undercut passage radially inward from the ledge that extends uninterrupted along a length of the ledge.
Patent
BOAS with multi-metering diffusion cooling
TL;DR: In this paper, the authors describe a gas turbine engine with an outer air seal and an impingement plate with holes in the surface of the surface, forming a grid of separate diffusion cavities.
Patent
Blade outer air seal with multi impingement plate assembly
TL;DR: In this paper, a multi-imaging plate assembly for a Blade Outer Air Seal (BOAS) is described, which includes a first impingement plate (60) which defines a multiple of first-imming-plate holes (68) and a platform section (70) spaced away from the multiple of holes to define a plate cavity.
References
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Patent
Sealed shroud for rotating body
James J. Sandy,Brian P. Huth +1 more
TL;DR: In this article, an annular turbine blade tip shroud is provided having a construction for minimizing leakage of the cooling fluid and preventing ingestion of hot gases into said cooling flow, a tip shroud support ring is located on the inner surface of said casing with tip shroud members affixed thereto and encasing the blade tips.
Patent
Combined turbine shroud and vane support structure
TL;DR: In this article, a single turbomachine support structure provides both close tolerance radial positioning of turbine shroud and close tolerance axial positioning of a vane without attendant radial movement of the shroud is accommodated by the use of surfaces designed to minimize constraint between the vane and the support structure.
Patent
Coolable outer air seal assembly for a turbine
Matthew Dominik Drive Stahl,William J. Hastings,Daniel E. Kane,James R. Murdock,James A. Dierberger +4 more
TL;DR: In this paper, an outer air seal assembly (44) cooled by a combination of impingement cooling and film cooling is described, and various construction details are developed which provide impingements of cooling fluid on a radially outer side of an outer-air-seal assembly and ejection of a film of cooling fluids over the radially inner surface.