DEVICE FOR PROTECTING AGAINST OIL LEAKS TOWARDS THE ROTORS OF A TURBOMACHINE TURBINE

摘要

A device for protecting against oil leaks towards the rotors of a turbomachine turbine includes an upstream cavity in which an oil/air mixture can circulate, the upstream cavity being delimited downstream by a journal of the turbine rotor and on the outside by a sealing flange of the journal extending axially in an upstream direction, a downstream cavity opening towards the discs of the turbine and communicating with the upstream cavity via a plurality of ventilation holes provided in the journal, and an upstream annular deflector fixed to the sealing flange of the journal and extending radially inwards towards the ventilation holes The upstream deflector has oil passage ports provided at the end of same secured to the sealing flange of the journal.

主权项

1. A device for protecting against oil leaks towards the rotors of a turbine of a turbomachine, comprising:
an upstream cavity in which an air/oil mixture can circulate, said upstream cavity being delimited downstream by a journal of the turbine rotor and to the outside by a sealing flange of the journal axially extending towards upstream; and a downstream cavity opening towards the discs of the turbine and communicating with the upstream cavity by a plurality of ventilation holes made in the journal; wherein said device further comprises an annular upstream deflector fixed on the sealing flange of the journal and radially extending towards the inside in the direction of the ventilation holes, the upstream deflector having oil flow orifices made at the level of its end fixed on the sealing flange of the journal.