Assembly forming a gasket for a turbomachine, comprising a brush seal

Abstract

An assembly forming a gasket for a turbomachine, includes a brush seal made of a plurality of sealing elastic bristles surrounding a core, a retaining ring including a recess to at least partly accommodate the brush seal, and a bearing cover, placed in contact with the brush seal to hold it in position against the retaining ring, the brush seal being located between the retaining ring and the bearing cover.

1 - 10 . (canceled) 
     
     
         11 . An assembly forming a gasket for a turbomachine, which can be assembled and disassembled on the turbomachine, comprising:
 a brush seal made of a plurality of sealing elastic bristles surrounding a core,   a retaining ring comprising a recess to at least partly accommodate the brush seal, and   a bearing cover, placed in contact with the brush seal to hold it in position against the retaining ring, the brush seal being located between the retaining ring and the bearing cover,   wherein the inner diameter of the bristles of the brush seal is machined after assembling the bearing cover on the retaining ring so as to be adapted to the requirements in terms of sealing.   
     
     
         12 . The assembly forming a gasket according to  claim 11 , wherein the recess of the retaining ring has a cylindrical shape to fit closely the shape of the toroidal area of the brush seal, at least partly accommodated in the recess, and to hold the brush seal in position. 
     
     
         13 . The assembly forming a gasket according to  claim 11 , wherein the bearing cover comprises a first planar bearing portion, placed in contact with the bristles of the brush seal outside the toroidal area. 
     
     
         14 . The assembly forming a gasket according to  claim 11 , wherein the bearing cover comprises a second bearing portion, placed in contact with the bristles of the brush seal at the toroidal area and having a cylindrical shape to fit closely the shape of the toroidal area. 
     
     
         15 . The assembly forming a gasket according to  claim 11 , wherein the bearing cover is fixed to the retaining ring by welding or crimping. 
     
     
         16 . The assembly forming a gasket according to  claim 11 , wherein the retaining ring comprises a fixing leg for fixing the retaining ring to a support element of a turbomachine stator part. 
     
     
         17 . A turbomachine stator part, comprising an assembly forming a gasket according to  claim 11 , and a support element on which the retaining ring of the assembly forming a gasket is fixed. 
     
     
         18 . A stator part according to  claim 17 , comprising an elastic return member, in particular a daisy-wheel-type spring, placed between the support element and the bearing cover of the assembly forming a gasket to intensify the contact between the bristles of the brush seal and the retaining ring. 
     
     
         19 . A turbomachine comprising an assembly forming a gasket according to  claim 11 . 
     
     
         20 . A turbomachine comprising a turbomachine stator part according to  claim 17 . 
     
     
         21 . A method for assembling an assembly forming a gasket according to  claim 11  on a turbomachine stator part, comprising the only step of fixing the retaining ring of the assembly forming a gasket to a support element of the stator part.