LABYRINTH SEALING DEVICE FOR AN AIRCRAFT TURBOMACHINE

LABYRINTH SEALING DEVICE FOR AN AIRCRAFT TURBOMACHINE

A labyrinth-type sealing device for an aircraft turbomachine includes a rotor with at least one external annular lip. The device further includes a stator with an annular coating made of abradable material with extends around the lip and which is configured to cooperate in operation with the lip in...

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Hauptverfasser: BRUNET, Antoine Robert Alain, BAUMAS, Olivier Jean-Daniel, HANSOM, Michael Piers
Format: Patent
Sprache:eng ; fre ; ger
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 BRUNET, Antoine Robert Alain
BAUMAS, Olivier Jean-Daniel
HANSOM, Michael Piers
description A labyrinth-type sealing device for an aircraft turbomachine includes a rotor with at least one external annular lip. The device further includes a stator with an annular coating made of abradable material with extends around the lip and which is configured to cooperate in operation with the lip in order to form a labyrinth-type seal with respect to a flow of gas flowing through the rotor axially from upstream to downstream. The coating has an internal cylindrical surface that extends around the lip and is configured to contact the lip in order to form, by friction, an annular groove, and, upstream of the lip, a preformed annular slot.
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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 LABYRINTH SEALING DEVICE FOR AN AIRCRAFT TURBOMACHINE
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