Seal assembly with vibration damping bristles
AssigneeRaytheon Technologies Corporation
InventorsKevin Duffy, Brady Walker
Life of this patent
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Abstract
A seal assembly includes a seal nose, a bellows, and a plurality of bristles. The seal nose is configured to be in sealing contact with a rotating seal plate, the bellows extends between and couples the seal nose to a support structure, and the plurality of bristles extends from the support structure toward the bellows, with at least one bristle of the plurality of bristles being in contact with the bellows to damp vibration of the bellows.
Claims20
A seal assembly comprising:
- a seal nose configured to be in sealing contact with a rotating seal plate;
- a bellows extending between and coupling the seal nose to a support structure;
- and
- a plurality of bristles mounted to and extending from the support structure toward the bellows, wherein at least one bristle of the plurality of bristles is in contact with the bellows to damp vibration of the bellows;
- wherein only respective tips of the plurality of bristles overlap edges of the bellows.
A gas turbine engine having an engine central longitudinal axis, wherein a radial direction, an axial direction, and a circumferential direction are defined relative to the engine central longitudinal axis, the gas turbine engine comprising:
- a bearing compartment comprising a rotational member;
- and
- a seal assembly comprising:
- a support structure,
- a rotating sealing plate;
- a seal nose in sealing contact with the rotating seal plate;
- a bellows extending between and coupling the seal nose to the support structure;
- and
- a plurality of bristles mounted to and extending from the support structure to engage the bellows, wherein the plurality of bristles are configured to damp vibration of the bellows, wherein only respective tips of the plurality of bristles overlap edges of the bellows.
A method of assembling a gas turbine engine, the method comprising:
- mounting a plurality of bristles to a bristle holder;
- mounting the bristle holder to a support structure of the gas turbine engine;
- and
- coupling a seal nose to the support structure via a bellows, wherein only respective tips of the plurality of bristles overlap edges of the bellows.
Dependencies are inferred from the claim text.