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US 2013/0094937 A1Published application
Gas turbine engine oil buffering
AssigneeUnited Technologies Corporation
InventorsJorn A. Glahn, Frederick M. Schwarz
Life of this patent
Estimating the term…
Abstract
A turbine engine includes a shaft, a fan, at least one bearing mounted on the shaft and rotationally supporting the fan, a fan drive gear system coupled to drive the fan, a bearing compartment around the at least one bearing and a source of pressurized air in communication with a region outside of the bearing compartment.
Claims16
A turbine engine comprising:
- a shaft;
- a fan;
- at least one bearing mounted on the shaft and rotationally supporting the fan;
- a fan drive gear system coupled to drive the fan;
- a bearing compartment around the at least one bearing;
- and
- a source of pressurized air in communication with a region outside of the bearing compartment.
4 more elements
A method of operating a turbine engine, the method comprising:
- in a gas turbine engine that includes a shaft, a fan, at least one bearing mounted on the shaft and rotationally supporting the fan, a fan drive gear system coupled to drive the fan and a bearing compartment around the at least one bearing, providing pressurized air to a region outside of the bearing compartment to establish a positive pressure differential between the region outside of the bearing compartment and the interior of the bearing compartment.
Dependencies are inferred from the claim text.