Seal device for high pressure turbine of a turbine engine

Details Seal device for high pressure turbine of a turbine engine Seal device for high pressure turbine of a turbine engine

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 11/00 (2006.01) F16J 15/32 (2006.01)

Patent

CA 2493065

A sealing device for sealing between two static portions (2, 4) of a turbomachine, said device comprising a brush gasket (10) formed by a plurality of resilient bristles which are, at least in part, held in a housing (8), each bristle having a main portion (10a) and a secondary portion (10b) interconnected by a bent portion (10c), the secondary portion (10b) having a free end ensuring leaktight contact (14) with a surface that is to be sealed (16) of the other static portion (4). The sealing device further comprises a flexible washer (18) of bent section which has a free end (20) bearing both against the free ends of the secondary portions (10b) of the bristles of the brush (10) gasket, and against the surface that is to be sealed (16) so that the free ends (14) of the secondary portions (10b) of the bristles of the brush (10) gasket are permanently in contact with the surface that is to be sealed (16).

Dispositif d'étanchéité entre deux parties statiques (2, 4) d'une turbomachine, comprenant un joint à brosse (10) formé d'une pluralité de poils élastiques qui sont au moins en partie maintenus dans un logement (8), chaque poil ayant une partie principale (10a) et une partie secondaire (10b) reliées par une partie coudée (10c), la partie secondaire (10b) ayant une extrémité libre (14) assurant un contact étanche avec une surface à étancher (16) de l'autre partie statique (4). Le dispositif d'étanchéité comporte en outre une coupelle flexible (18) à section courbe qui présente une extrémité libre (20) en appui à la fois contre l'extrémité libre de la partie secondaire (10b) des poils du joint à brosse (10) et contre la surface à étancher (16) de sorte que l'extrémité libre (14) de la partie secondaire (10b) des poils du joint à brosse (10) est en permanence en contact avec la surface à étancher (16).

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