Non-contacting dynamic seal
AssigneeUnited Technologies Corporation
InventorsRoss Wilson, John R. Farris, Michael G. McCaffrey, Theodore W. Hall, John J. Korzendorfer, Elizabeth F. Vinson, Jeffrey Michael Jacques, John E. Paul, Edwin Otero, Alan W. Stoner
Life of this patent
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Abstract
Non-contacting dynamic seals having wave springs are disclosed herein. A non-contacting dynamic seal may have a shoe coupled to an outer ring by an inner beam and an outer beam. A wave spring may be located between the inner beam and the outer beam, between the shoe and the inner beam, or between the outer beam and the outer ring. The wave spring may damp vibrations in the inner beam and the outer beam.
Claims20
A seal for a gas turbine engine comprising:
- a full hoop outer ring;
- a shoe coupled to the full hoop outer ring via an inner beam and an outer beam;
- and
- a wave spring in contact with at least one of the inner beam or the outer beam.
A seal assembly for a gas turbine engine comprising:
- an outer ring;
- a shoe coupled to the outer ring, wherein the shoe is configured to move radially with respect to the outer ring;
- a first beam and a second beam coupling the shoe to the outer ring;
- and
- a first wave spring located between the first beam and the second beam, wherein the first wave spring is configured to damp vibrations in the first beam and the second beam.
A method of damping vibrations in a seal comprising:
- inserting a first wave spring between a first beam and a second beam of the seal.
Dependencies are inferred from the claim text.