Brush seal for a turbine engine rotor
AssigneeSafran Aero Boosters SA
InventorsStéphane Hiernaux, Nicolas Habotte
Life of this patent
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Abstract
An aircraft turbojet low-pressure compressor includes a sealing device for a turbine engine. The device includes an internal stator shroud connected to an external casing via an annular row of stator vanes and a rotor with two brush seals arranged inside the shroud and respectively upstream and downstream. The internal shroud includes a frustoconial internal surface, which is associated with each brush seal. Each frustoconical surface lies flush with and is inclined with respect to the bristles of the brush seal, so as to seal with the said brush. A method for assembling a sealing device is also proposed.
Claims20
A sealing device for a turbine engine, the sealing device comprising:
- a stator shroud intended to be fixed to radial ends of stator vanes;
- and
- a rotor with a brush seal arranged inside the stator shroud;
- wherein the stator shroud comprises:
- a frustoconical internal surface with a profile which is substantially inclined with respect to bristles of the brush seal so as to seal with the said brush seal.
A sealing device for a turbine engine, the sealing device comprising:
- a stator shroud intended to be fixed to the radial ends of stator vanes;
- and
- a rotor with a first brush seal and a second brush seal which are arranged inside the stator shroud;
- the stator shroud comprises:
- a first frustoconical surface and a second frustoconical surface which engage the first brush seal and the second brush seal, the latter including bristles which are inclined with respect to profiles of the first frustoconical surface and of the second frustoconical surface.
A method of assembling a turbine engine sealing device, the method comprising:
- supply or production of a stator shroud;
- supply or production of a rotor with a brush seal with inclined bristles;
- introduction of the rotor into the stator shroud;
- wherein the stator shroud comprises:
- a frustoconical internal surface with a profile able to cooperate in a sealed manner with the brush seal;
- and in that, during step introduction, the frustoconical internal surface pushes the inclined bristles of the brush seal in the event of misalignment between the rotor and the stator shroud.
Dependencies are inferred from the claim text.