PROCEDE ET SYSTEME DE PILOTAGE DE JEU EN SOMMET D'AUBES DE ROTOR DE TURBINE

PROCEDE ET SYSTEME DE PILOTAGE DE JEU EN SOMMET D'AUBES DE ROTOR DE TURBINE

A system and method for controlling clearance between tips of moving blades of an aeroplane gas-turbine engine and a turbine shroud of an outer casing surrounding the blades. The method includes controlling, according to an operating speed of the engine, a valve positioned in an air duct opening at...

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Hauptverfasser: BONNEAU DAMIEN, GAULLY BRUNO, ROBERT, CROIXMARIE MARC, DENECE FRANCK, ROGER, DENIS
Format: Patent
Sprache:fre
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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creator BONNEAU DAMIEN
GAULLY BRUNO, ROBERT
CROIXMARIE MARC
DENECE FRANCK, ROGER, DENIS
description A system and method for controlling clearance between tips of moving blades of an aeroplane gas-turbine engine and a turbine shroud of an outer casing surrounding the blades. The method includes controlling, according to an operating speed of the engine, a valve positioned in an air duct opening at a stage of the compressor of the engine and leading into a control housing positioned around the outer surface of the turbine shroud and supplied with air coming only from the compressor stage. The valve is opened to cool the turbine shroud during a high-speed phase corresponding to takeoff and climb phases of an aeroplane propelled by the engine and during a nominal-speed phase following the high-speed phase and corresponding to a cruise phase of the aeroplane.
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recordid cdi_epo_espacenet_FR2960905B1
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subjects BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
title PROCEDE ET SYSTEME DE PILOTAGE DE JEU EN SOMMET D'AUBES DE ROTOR DE TURBINE
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