Gas Turbine Seal Protector Axial Positioning

A seal protector is introduced as an intermediary component positioned between the seal and the cavity wall. The seal protector includes a locating feature that contacts the seal to aid in axial positioning, while the seal protector itself contacts the cavity wall, preventing direct contact between the seal and cavity wall. This intermediary structure protects the seal from degradation and fracture caused by direct contact with the cavity wall.

The seal protector is pre-positioned within the cavity before the seal is installed. The seal protector includes a locating feature that is already in place to receive and axially position the seal. This preliminary positioning action ensures that when the seal is installed, it is automatically and precisely positioned axially by the locating feature, preventing undesirable axial movement and reducing mechanical stress on the seal.

The seal protector is designed with a locating feature at a specific location to provide axial positioning precision where it is most needed. The locating feature may include a radially-extending portion or other geometric element that contacts the seal at a defined axial position. This localized feature provides precise axial positioning without requiring the entire seal protector structure to be complex, as only the locating feature area requires precise geometry.