Seal runner flow damper
AssigneeRaytheon Technologies Corporation
InventorNigel David Sawyers-Abbott
Life of this patent
Estimating the term…
Abstract
A gas turbine engine component includes a first member, a second member rotatable relative to the first member about an axis, and a seal assembly that includes a seal supported by the first member and a seal runner that rotates with the second member relative to the seal. The seal runner includes at least one internal passage to direct cooling fluid flow through the seal runner. A restriction is associated with the at least one internal passage to restrict flow through the at least one internal passage in response to an engine condition.
Claims20
A gas turbine engine component comprising:
- a first member;
- a second member rotatable relative to the first member about an axis;
- a seal assembly that includes a seal supported by the first member and a seal runner that rotates with the second member relative to the seal, and wherein the seal runner includes at least one internal passage to direct cooling fluid flow through the seal runner;
- and
- a restriction associated with the at least one internal passage to restrict flow through the at least one internal passage in response to an engine condition.
A gas turbine engine component comprising:
- at least one bearing to support a shaft for rotation about an engine axis, wherein the at least one bearing is positioned within a bearing compartment;
- and
- a seal assembly to provide sealing for the bearing compartment, wherein the seal assembly includes
- a seal supported by a first member,
- a seal runner supported by a second member that rotates relative to the first member about the engine axis, wherein the seal runner includes at least one internal passage to direct cooling fluid flow through the seal runner, and
- a restriction associated with the at least one internal passage to restrict flow through the at least one internal passage in response to an engine condition.
A method comprising:
- providing a seal assembly that includes a seal supported by a first member and a seal runner supported by a second member that rotates relative to the first member about an engine axis;
- forming at least one internal passage in the seal runner to direct cooling fluid flow through the seal runner;
- and
- associating a restriction with the at least one internal passage to restrict flow through the at least one internal passage in response to an engine condition.
Dependencies are inferred from the claim text.