Patent
Clearance control system
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TLDR
In this paper, a tip clearance control system having a plurality of impingement manifolds to unevenly heat or cool a turbine shroud is described, such creating a non-uniform circumferential temperature distribution to produce ovalization of said turbine shroud.Abstract:
Tip clearance control system having a plurality of impingement manifolds (40) to unevenly heat or cool a turbine shroud (28) such creating a non-uniform circumferential temperature distribution to produce ovalization of said turbine shroud (28) to conform to high load induced non-concentricities of the turbine rotor (52).read more
Citations
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Patent
Turbine shroud thermal distortion control
TL;DR: A shroud suitable for use in a gas turbine engine exhibits substantially uniform thermal growth as discussed by the authors, which is not the case in the case of a conventional turbine engine with a conventional shroud.
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Ceramic shroud assembly
TL;DR: In this paper, a metal clamp ring shrink is fitted around a ceramic shroud ring and an insulating and compliant interlayer is positioned between the metal clamp rings and the ceramic shroud rings.
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Ceramic turbine shroud support
TL;DR: In this article, a turbine rotor case is equipped with a turbine support case, which consists of two axially extending radial surfaces (44a) of each of the tabs attached to the aft edge of the forward metallic support ring.
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Device for tuning clearance in a gas turbine, while balancing air flows
TL;DR: In this article, an annular air flow duct was designed to discharge air onto the rotor blade tip of a gas turbine rotor in order to tune the temperature of the rotor blades.
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Active clearance control system for gas turbine engines
TL;DR: A gas turbine engine (10) generally includes a compressor, a combustor, and a turbine (12), and the turbine can include an integrated manifold comprising a plenum (16) defined by a manifold (18) disposed in connection with a divider plate (20) and opposite a shielding plate (22) comprising a plurality of apertures (24) as mentioned in this paper.
References
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Patent
Turbine blade clearance controller
TL;DR: In this paper, a control system for measuring the clearance between the tip (26) of a blade (24) and wall (28) in a turbine engine is described, where the transducers convert pneumatic signals into electrical signals which are supplied to a computer.
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Elastic fluid turbine apparatus
TL;DR: In this paper, a means operative to eliminate the vibration and damage attributable to distortion caused by the unequal expansion and contraction of correlated parts of a turbine was proposed. But this method was only applied to the top portion of the turbine.
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Adjustment of eccentric radial clearances in turbomachines
TL;DR: In this paper, the longitudinal axes (R,S) of the stator and rotor were aligned with one another to reproduce the deformations of the rotor at various stages of use of the turbomachine.