Safran Helicopter Engines

Julien Fabrice Girardot

Pierre Chabanne

Lionel Scuiller

Christophe Michel Georges Marcel Brillet

Sylvain Jacques Marie Gourdant

Alexandre Auduberteau

The invention concerns a turbomachine rotor (), characterised in that it comprises a threaded or tapped part () and a damping nut () screwed onto the threaded or tapped part () so as to allow the threads of the nut () and of the threaded or tapped part () to rub against each other in the event of vibration of the rotor ().

Turbomachine rotor

The invention relates to a turbine engine comprising an air compression stage comprising at least one movable compressor wheel, an air inlet duct coupled to said air compression stage, a first sealing device, which is arranged between a front portion of the movable compressor wheel and the air inlet duct and comprising at least one seal, a channel for conveying the air compressed by the movable wheel and a second sealing device, which is arranged between a rear portion of the movable compressor wheel and the conveying channel and is configured to receive an airflow coming from the conveying channel, the turbine engine being remarkable in that the second sealing device is configured to allow some of the air passing therethrough to be bled and in that the bleed air is conveyed to the seal of the first sealing device so as to keep it under pressure.

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Moissy-Cramayel, France

Julien Fabrice Girardot