F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 11/00 (2006.01) F01D 9/04 (2006.01) F01D 25/24 (2006.01)
Patent
CA 2312979
A shroud assembly for a gas turbine engine has an annular turbine support case and a plurality of shroud segments supported on the inner, radial side of the turbine support case. The shroud segments are located end-to-end to form an annular shroud within the turbine support case. Seal receiving means are provided in each of the adjacent ends of adjacent shroud segments, and feather seals are provided for insertion in the sea] receiving means for sealing gaps between the adjacent ends of adjacent shroud segments. Cooperating rotation prevention means are provided on the sealing means and on the turbine support case, on its downstream side, prevent rotation of the shroud segments relative to the turbine support case.
L'invention concerne un ensemble d'anneaux de renforcement pour un moteur de turbine à gaz pourvu d'une enveloppe de support de turbine annulaire, et d'une pluralité de segments d'anneaux de renforcement portés par le côté radial, interne de ladite l'enveloppe. Les segments d'anneaux de renforcement sont mis bout à bout de manière à former un anneau de renforcement annulaire dans l'enveloppe de support de turbine. Des moyens de réception de joint d'étanchéité sont disposés à chacune des extrémités adjacentes des segments d'anneaux de renforcement adjacents, et des joints d'étanchéité viennent s'insérer dans lesdits moyens de réception de joint d'étanchéité, de manière à ce que les espaces entre les extrémités adjacentes des segments d'anneau de renforcement adjacents soient rendus étanches. Des moyens associés avec l'ensemble et antirotation, placés sur le moyen d'étanchéité et sur l'enveloppe de support de turbine, sur le côté aval, empêchent la rotation des segments d'anneau de renforcement par rapport à l'enveloppe de turbine.
Astle Jeffrey W.
Pratt & Whitney Canada Corp./pratt & Whitney Canada Cie.
LandOfFree
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