Back to results
US 2017/0362949 A1Published application
Carbon seal spring assembly
AssigneeUnited Technologies Corporation
InventorsKaleb Von Berg, Adam G. Smedresman
Life of this patent
Estimating the term…
Abstract
A carbon seal assembly for a gas turbine engine is disclosed. The carbon seal assembly includes a first carbon seal. The carbon seal assembly also includes a first carbon seal spring configured to provide force against the first carbon seal in a first axial direction, the first carbon seal spring having an annular shape and circumferentially disposed around a first shaft of the gas turbine engine.
Claims17
A carbon seal assembly for a gas turbine engine, comprising:
- a first carbon seal;
- a second carbon seal;
- and
- a first carbon seal spring configured to provide force against the first carbon seal in a first axial direction and to provide force against the second carbon seal in a second axial direction opposite the first axial direction, the first carbon seal spring having an annular shape and circumferentially disposed around a first shaft of the gas turbine engine, wherein the first carbon seal comprises a first retention surface disposed radially between the first carbon seal spring and the first shaft and the second carbon seal comprises a second retention surface disposed radially between the first carbon seal spring and the first shaft,
1 more element
2-7. (cancelled)
10-11. (canceled)
A gas turbine engine comprising:
- a first carbon seal configured to form a seal against a first rotating shaft of the gas turbine engine, wherein the first rotating shaft has a first diameter;
- a second carbon seal configured to form a seal against a second rotating shaft of the gas turbine engine, wherein the second rotating shaft has a second diameter that is different than the first diameter;
- a mating hardware disposed between the first carbon seal and the second carbon seal;
- a first carbon seal spring configured to provide force against the first carbon seal in a first axial direction and provide force against the mating hardware in a second axial direction opposite the first axial direction, the first carbon seal spring having an annular shape and circumferentially disposed around the first rotating shaft of the gas turbine engine;
- and
- a second carbon seal spring having the annular shape, circumferentially disposed around the second rotating shaft of the gas turbine engine, and configured to provide force against the second carbon seal in the second axial direction and configured to provide force against the mating hardware in the first axial direction.
3 more elements
A method of sealing a carbon seal assembly, the method comprising:
- disposing a carbon seal in the carbon seal assembly, around a shaft of a gas turbine engine to form a seal against the shaft of the gas turbine engine;
- and
- disposing a carbon seal spring in the carbon seal assembly, the carbon seal spring configured to provide force against the carbon seal in an axial direction, the carbon seal spring having an annular shape and circumferentially disposed around the shaft of the gas turbine engine, wherein a retention surface extends between the carbon seal spring and the shaft.
Dependencies are inferred from the claim text.