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Patent

High pressure compressor thermal management

TLDR
A gas turbine engine includes an inner shaft extending axially along the gas turbine, a plurality of disks extending radially inwardly and toward the inner shaft, at least one hole in one of the disks, such that a bore flow that flows along an axial length of the internal shaft is obstructed from flowing along the shaft by an obstruction, and forced to flow radially outward from the obstruction, through the obstruction as discussed by the authors.
Abstract
A gas turbine engine includes an inner shaft extending axially along the gas turbine engine, a plurality of disks extending radially inwardly and toward the inner shaft, at least one hole in at least one of the plurality of disks, and an obstruction positioned between the inner shaft and an end of the disk having the at least one hole, such that a bore flow that flows along an axial length of the inner shaft is obstructed from flowing along the shaft by the obstruction, and forced to flow radially outward from the obstruction, through the at least one hole, and radially inward toward the inner shaft.

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Citations
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References
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Patent

Turbine disk cooling system

TL;DR: In this article, a turbine disk cooling system for a gas turbine engine of a type having a compressor section including first and second disks connected by a seal and defining a compressor inter-stage volume, a turbine section including a turbine inner stage volume, and a compressor shaft interconnecting the compressor disks with the turbine disks including orifices located in the compressor seal for allowing air in the compressors to enter the compressor interstage volume.
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TL;DR: A gas turbine engine cooling system for providing cooling air to engine components includes a core engine and, in downstream serial flow relationship, a high pressure compressor, a combustor, and high pressure turbine as mentioned in this paper.
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TL;DR: An improved spool for a compressor of a gas turbine engine comprising spacer disks disposed between adjacent rotor disks, and a plurality of hollow tie rods that extend through the rotor disks and the spacer disk, is described in this article.
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Gas turbine engines with compressor rotor cooling

TL;DR: In this article, a system for cooling the rotor of an axial flow compressor incorporated in a gas turbine engine is described, where cooling air flows to the downstream end of the rotor and is then ducted back into the compressor inlet.