Gas turbine engine including seal assembly with abradable coating including magnetic particles
AssigneeRaytheon Technologies Corporation
InventorsPantcho P. Stoyanov, Agnieszka M. Wusatowska-Sarnek, Thomas D. Kasprow
Life of this patent
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Abstract
A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a compressor section, a combustor section, a turbine section, and at least one rotatable shaft. The engine further includes a seal assembly including a seal plate mounted for rotation with the rotatable shaft and a face seal in contact with the seal plate at a contact area. The seal assembly includes an abradable coating adjacent the contact area, and the abradable coating includes magnetic particles.
Claims17
A gas turbine engine, comprising:
- a compressor section, a combustor section, a turbine section, and at least one rotatable shaft;
- and a seal assembly including a seal plate mounted for rotation with the rotatable shaft and a face seal in contact with the seal plate at a contact area, wherein the seal assembly includes an abradable coating adjacent the contact area, and wherein the abradable coating includes magnetic particles, wherein, in normal engine operating conditions, an axial end face of the seal plate and an axial end face of the face seal are in direct contact at the contact area, and wherein, in normal engine operating conditions, the abradable coating is adjacent the contact area and is radially outward of the contact area.
A bearing compartment for a gas turbine engine, comprising:
- a bearing assembly;
- and a seal assembly including a seal plate and a face seal in contact with the seal plate at a contact area, wherein the seal assembly includes an abradable coating adjacent the contact area, and wherein the abradable coating includes magnetic particles, wherein, in normal engine operating conditions, an axial end face of the seal plate and an axial end face of the face seal are in direct contact at the contact area, and wherein, in normal engine operating conditions, the abradable coating is adjacent the contact area and is radially outward of the contact area.
Dependencies are inferred from the claim text.