Ventilation of a high-pressure turbine in a turbomachine

Details Ventilation of a high-pressure turbine in a turbomachine Ventilation of a high-pressure turbine in a turbomachine

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/08 (2006.01) F02C 7/18 (2006.01)

Patent

CA 2739219

Turbomachine high-pressure turbine comprising a rotor disc (24) with upstream (30, 32) and downstream (40, 42) annular flanges separating a radially internal annular cavity (72) in which the hub (64) of the disc (24) extends from two radially external annular cavities of which one (50) is upstream of the disc and receives a ventilation air flow (48) and of which the other (88) is downstream of the disc, the upstream flange (30, 32) of the disc comprising means (74) connecting the upstream external cavity (50) and the internal cavity (72) for ventilating the hub (64) of the disc (24).

Turbine haute-pression de turbomachine, comprenant un disque de rotor (24) avec des brides annulaires amont (30, 32) et aval (40, 42) séparant une cavité annulaire radialement interne (72) dans laquelle s'étend le moyeu (64) du disque (24), de deux cavités annulaires radialement externes, dont l'une (50) est en amont du disque et reçoit un flux d'air de ventilation (48), et dont l'autre (88) est en aval du disque, la bride amont (30, 32) du disque comportant des moyens (74) reliant la cavité externe amont (50) et la cavité interne (72) pour la ventilation du moyeu (64) du disque (24).

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