Stay sector of stator shroud of the high-pressure turbine of...

Details Stay sector of stator shroud of the high-pressure turbine of... Stay sector of stator shroud of the high-pressure turbine of...

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 25/24 (2006.01)

Patent

CA 2400151

The invention concerns a shroud stay sector (14) for minimising working clearances (J) between the summit of the blades (3) and the ring (12) of the high-pressure turbine and mounting clearances of the shroud stay sectors (14) on the high-pressure turbine housing (1). Each shroud stay sector (14) has upstream a tab (20) comprising an end (21) supported on the inner wall (1l) of the high-pressure turbine housing (1) thereby producing a close contact between the parts fixing said shroud stay sector (14) with the corresponding parts of the high-pressure turbine. The invention is applicable to gas turbine engines equipping aircraft.

Le secteur d'entretoise support (14) permet de minimiser les jeux (J) de fonctionnement entre le sommet des pales (3) et l'anneau (12) de la turbine haute pression et les jeux de montage des secteurs d'entretoise de support (14) sur le carter de turbine haute pression (1). Chaque secteur d'entretoise de support (14) possède en amont une languette (20) possédant une extrémité (21) s'appuyant sur la paroi interne (II) du carter de turbine haute pression (1) créant ainsi un contact intime entre les parties de fixation de ce secteur d'entretoise de support (14) avec les parties correspondantes du carter de turbine haute pression (1). Application aux turbomachines équipant les aéronefs.

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