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US 10,094,283 B2Granted
Differential gas bearing for aircraft engines
AssigneeGeneral Electric Company
InventorsBugra Han Ertas, Daniel Alan Niergarth, Brandon Wayne Miller
Life of this patent
Estimating the term…
Abstract
Embodiments of a gas bearing for aircraft engines are provided herein. In some embodiments, a gas bearing may include a first shaft; a second shaft disposed concentrically about the first shaft; and a protrusion extending from at least one of an inner surface of the first shaft or the outer surface of the second shaft to form a gap between the first shaft and the second shaft.
Claims17
A gas bearing for a turbine engine comprising:
- a first shaft;
- a second shaft disposed concentrically about the first shaft;
- and
- a protrusion extending from at least one of an inner surface of the second shaft or an outer surface of the first shaft to form a gap between the first shaft and the second shaft,
- wherein the second shaft comprises a plurality of through holes, wherein the through holes are fluidly coupled to the gap, and wherein the plurality of through holes are configured to allow a flow of air to the gap to pressurize the gap.
2 more elements
A gas turbine engine, comprising:
- a fan having a fan shaft;
- a first shaft rotatably coupling a first compressor to a second turbine;
- a gear box rotatably coupling the first shaft to the fan shaft;
- a second shaft disposed concentrically about the first shaft and coupling a first turbine to a second compressor;
- a gas bearing, comprising:
- the first shaft;
- the second shaft;
- and
- a protrusion extending from at least one of an inner surface of the second shaft or an outer surface of the first shaft to form a gap between the first shaft and the second shaft;
- wherein a coating is disposed on at least a portion of the protrusion, and
- wherein the second shaft comprises a plurality of through holes, wherein the through holes are fluidly coupled to the gap, and wherein the plurality of through holes configured to allow a flow of air to the gap to pressurize the gap.
8 more elements
Dependencies are inferred from the claim text.