Proximity measurement between seal elements of a gas turbine engine
AssigneeRtx Corporation
InventorEli Warren
Life of this patent
Estimating the term…
Abstract
A stator assembly of a gas turbine engine includes a stator including at least a stator vane and a stator inner platform located radially inboard of the stator vane. A stator inner airseal is positioned radially inboard of the stator inner platform. The stator inner airseal is configured to define a seal arrangement with two or more knife edges of a radially adjacent rotating component. A sensor is positioned at the stator inner airseal. The sensor includes a sensor body configured to be positioned axially between the knife edges, and configured to detect a radial distance from the sensor to the radially adjacent rotating component.
Claims20
A stator assembly of a gas turbine engine, comprising:
- a stator including at least:
- a stator vane;
- and
- a stator inner platform located radially inboard of the stator vane;
- a stator inner airseal disposed radially inboard of the stator inner platform, the stator inner airseal configured to define a seal arrangement with two or more knife edges of a radially adjacent rotating component;
- and
- a sensor disposed at the stator inner airseal, the sensor including a sensor body configured to be positioned axially between axially adjacent knife edges of the two or more knife edges and configured to detect a radial distance from the sensor to the radially adjacent rotating component;
- wherein the stator inner airseal includes a seal carrier and a seal element installed into the seal carrier radially inboard of the seal carrier;
- and
- wherein the sensor body is disposed radially between the seal element and the seal carrier such that the seal element is disposed radially between the sensor body and the rotating component.
A gas turbine engine comprising:
- a rotor configured to rotate about an engine central longitudinal axis, the rotor including:
- a rotor body;
- and
- two or more knife edges extending radially outwardly from the rotor body;
- and
- a stator assembly disposed radially outboard of the rotor, the stator assembly including:
- a stator including at least:
- a stator vane;
- and
- a stator inner platform located radially inboard of the stator vane;
- a stator inner airseal disposed radially inboard of the stator inner platform, the stator inner airseal defining a seal arrangement with the two or more knife edges;
- and
- a sensor disposed at the stator inner airseal, the sensor including a sensor body positioned axially between axially adjacent knife edges of the two or more knife edges and configured to detect a radial distance from the sensor to the rotor body;
- wherein the stator inner airseal includes a seal carrier and a seal element installed into the seal carrier radially inboard of the seal carrier;
- and
- wherein the sensor body is disposed radially between the seal element and the seal carrier such that the seal element is disposed radially between the sensor body and the rotating component.
Dependencies are inferred from the claim text.