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US 9,540,951 B2Granted
System for pressuring the bearing chambers of turbine engines machines using air taken from the intake duct
AssigneeSnecma
InventorsNelson Dos Santos, Dominik Igel, Serge Rene Morreale
Life of this patent
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Abstract
A system for pressurizing at least one chamber for lubricating bearings of a turbine engine, including a circuit for supplying the chamber with pressurized air, and a circuit for recovering oil mist formed in the chamber and for returning the mist to an oil tank of the turbine engine. The supply circuit supplies the chamber with air taken upstream from the low-pressure compressor.
Claims12
A system for pressurizing at least one chamber for lubricating bearings of a turbomachine, comprising:
- a supply circuit for supplying the chamber with pressurized air;
- and
- a recovery circuit for recovering an oil mist formed in the chamber and for returning the oil mist recovered by the recovery circuit to an oil reservoir of the turbomachine,
- wherein the supply circuit supplies the chamber with air coming from an air intake duct of the turbomachine, bled upstream from a low-pressure compressor, and
- wherein the air bled from upstream of the low-pressure compressor enters the chamber through an opening provided on a low-pressure shaft of the turbomachine.
2 more elements
A turbomachine comprising:
- at least one chamber for lubricating at least one bearing of the turbomachine;
- and
- a pressurizing system for supplying the chamber with pressurized air, the pressurizing system including
- a supply circuit for supplying the chamber with pressurized air;
- and
- a recovery circuit for recovering an oil mist formed in the chamber and for returning the oil mist recovered by the recovery circuit to an oil reservoir of the turbomachine,
- wherein the supply circuit supplies the chamber with air coming from an air intake duct of the turbomachine, bled upstream from a low-pressure compressor, and wherein the air bled from upstream of the low-pressure compressor enters the chamber through an opening provided on a low-pressure shaft of the turbomachine.
4 more elements
Dependencies are inferred from the claim text.