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US 2019/0316629 A1Published application
Air bearing with surface layer
AssigneeHamilton Sundstrand Corporation
InventorsSteven Poteet, Blair A. Smith, Kevin M. Rankin, William R. Fiske
Life of this patent
Estimating the term…
Abstract
An example embodiment of an air bearing assembly includes at least a first member and a shaft with a flange configured to rotate with respect to the first member. The first member has a coating on at least one surface facing at least one of the shaft and the flange. The coating includes tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof.
Claims18
An air bearing assembly, comprising:
- a first member;
- and
- a shaft with a flange configured to rotate with respect to the first member;
- wherein the first member has a coating on at least one first surface facing at least one second surface of the shaft and the flange, the coating comprising tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof.
1 more element
A foil bearing for an air bearing assembly, the foil bearing comprising:
- a plurality of convex foils arranged generally about a rotational axis, the foil bearing having a first side, a second opposing side, and an opening centered therethrough;
- and
- a coating on at least one surface including at least the first side or the second side, the coating comprising tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof.
A method of making a foil bearing for an air bearing assembly, comprising:
- arranging a plurality of convex foils generally about a rotational axis to form a foil bearing, the foil bearing having a first side, a second opposing side, and an opening centered therethrough, about the rotational axis;
- and
- applying a coating comprising tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof to at least one of the first face and the second face by one of plasma spraying, chemical vapor deposition, and physical vapor deposition.
Dependencies are inferred from the claim text.