Device for evacuation of a ventilated lubricated chamber of a turbomachine
AssigneeSafran Aircraft Engines
InventorsAntoine Jean-Philippe Beaujard, Fabien Roger Gaston Caty, Paco Maurer
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Abstract
A ventilated chamber (19), subject to an irruption of air at a pressure higher than that in a surrounding chamber (20) through labyrinth seals separating them and evacuation of excess air through an evacuation duct (30), comprises a motor-driven compressor (32) in the evacuation duct to facilitate suction and evacuation, even when the engine speed does not allow a large overpressure in the chamber (20).
Claims9
A device for evacuation of a ventilated lubricated chamber of a turbomachine, said device comprising a ventilation duct connecting the ventilated lubricated chamber to an ambient environment around the turbomachine, comprising a motor-driven compressor, creating a negative pressure differential in the ventilation duct and suction from the ventilated lubricated chamber, wherein the ventilation duct is a central tube coaxial with a rotation axis of a turbomachine rotor and rigidly fixed to said turbomachine rotor, wherein the motor-driven compressor is at least partly received in said central tube.
Dependencies are inferred from the claim text.