Turbine shroud gas path duct interface

Details Turbine shroud gas path duct interface Turbine shroud gas path duct interface

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 7/28 (2006.01) F01D 11/00 (2006.01)

Patent

CA 2662039

An arrangement for sealing a turbine shroud gas path duct interface of a turbine engine comprises a static shroud surrounding a rotatable airfoil array and an annular duct downstream of the shroud with respect to a gas flow passing through the gas path. The shroud and the duct define a portion of the gas path for directing the gas flow, having an axially extending interface gap between the shroud and duct. An annular seal in use engages both the shroud and the duct, thereby sealing the annular gap.

Dispositif d'étanchéisation d'une interface de conduit de trajet des gaz de l'enveloppe d'une turbine, qui comprend une enveloppe statique entourant une surface portante et un conduit annulaire en aval de l'enveloppe quant au débit de gaz passant par le trajet desdits gaz. L'enveloppe et le conduit définissent une partie du trajet pour diriger le débit des gaz; cette partie comporte un écartement de contact qui s'étend sur le plan axial entre l'enveloppe et le conduit. Un joint d'étanchéité annulaire relie l'enveloppe et le conduit, ce qui scelle l'écartement annulaire.

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