Foreign object damage resistant vane assembly

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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Details

F01D 9/04 (2006.01) F01D 5/03 (2006.01) F01D 5/30 (2006.01) F01D 9/02 (2006.01)

Patent

CA 2622024

A vane assembly (20) for a gas turbine engine (10) including an inner shroud (26) with openings (54) defined therein about a circumference thereof and vanes (22) extending radially from the shroud with a vane tip (24) in each opening Isolating means in the form of grommets (28) are disposed in each opening to isolate the vane tip from the shroud ring Each vane tip is retained in the shroud by cooperation between a radial slot (38) in the tip and a shroud web (38), thereby restricting movement of the vane tip (24) in an axial direction relative to the shroud.

La présente invention a trait à un ensemble d'aubes (20) pour une turbine à gaz (10) comportant une enveloppe (26) avec des ouvertures définies autour de la circonférences de celles-ci et des aubes (22) s'étendant en direction radiale depuis l'enveloppe avec une extrémité d'aube (24) dans chaque ouverture. Des moyens d'isolation (28) sont disposés dans chaque ouverture pour isoler l'extrémité d'aube de l'anneau d'étanchéité. Chaque extrémité est en prise avec l'enveloppe par des moyens de retenue (38, 36) pour limiter le déplacement de l'extrémité d'aube (24) dans une direction axiale par rapport à ladite enveloppe.

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