Large displacement high temperature seal
AssigneeUnited Technologies Corporation
InventorGary J. Dillard
Life of this patent
Estimating the term…
Abstract
A seal assembly is provided for a gas turbine engine. This seal assembly includes a tadpole seal with a bulb and a tail, where the tail is directed toward a backwall. The seal assembly also includes a faying extension that at least partially extends into the channel and into contact with the bulb. An exhaust duct is also provided for a gas turbine engine. This exhaust duct includes a seal assembly between a first exhaust duct section and a second exhaust duct section. The seal assembly includes a tadpole seal with a bulb and a tail, where the tail is directed upstream.
Claims14
An exhaust duct for a gas turbine engine, comprising:
- a first exhaust duct section;
- a second exhaust duct section adjacent to the first exhaust duct section;
- a seal assembly between the first exhaust duct section and the second exhaust duct section, wherein the seal assembly includes a tadpole seal with a bulb and a tail, and the tail is directed upstream;
- wherein the bulb is configured to translate axially when compressed by movement of a component of the seal assembly;
- and
- a channel mounted to the first exhaust duct section, wherein the tadpole seal is located within the channel;
- wherein the tail extends toward a backwall of the channel;
- wherein the component of the seal assembly comprises a faying extension that at least partially extends axially into the channel and into axial contact with the bulb;
- and
- wherein the component of the seal assembly comprises a faying extension that at least partially extends axially into the channel and into axial contact with the bulb.
An exhaust duct for a gas turbine engine, comprising:
- a first exhaust duct section;
- a second exhaust duct section adjacent to the first exhaust duct section;
- and
- a seal assembly between the first exhaust duct section and the second exhaust duct section, the seal assembly comprising a tadpole seal and a faying extension attached to the second exhaust duct section;
- the tadpole seal comprising a bulb and a tail that is directed upstream;
- the faying extension projecting upstream to a distal end that axially engages the bulb, wherein the bulb is axially between the faying extension and the tail.
Dependencies are inferred from the claim text.