Wear resistant, self-lubricating static seal
AssigneeRaytheon Technologies Corporation
InventorsPantcho P. Stoyanov, Kelly M. Harrington
Life of this patent
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Abstract
A seal assembly for a gas turbine engine includes a seal composed of a nickel-based superalloy; a component in contact with the seal and defining a seal-counterface; and a coating on the seal at the seal-counterface, wherein the coating is a ternary oxide.
Claims16
A seal assembly for a gas turbine engine, comprising:
- a seal comprised of a nickel-based superalloy;
- a component in contact with the seal and defining a seal-counterface;
- and
- a coating on the seal at the seal-counterface, wherein the coating comprises a ternary oxide, wherein the ternary oxide comprises a silver-based ternary oxide, and wherein the silver-based ternary oxide is selected from the group consisting of Ag3VO4, AgTaO3, Ag2MoO4 and combinations thereof.
A seal assembly for a gas turbine engine, comprising:
- a seal comprised of a nickel-based superalloy;
- a component in contact with the seal and defining a seal-counterface;
- and
- a coating on the seal at the seal-counterface, wherein the coating comprises a ternary oxide, wherein the ternary oxide comprises a copper-based ternary oxide, wherein the copper-based ternary oxide is selected from the group consisting of CuTa2O6, CuTaO3, CuMoO4 and combinations thereof.
A seal assembly for a gas turbine engine, comprising:
- a seal comprised of a nickel-based superalloy;
- a component in contact with the seal and defining a seal-counterface;
- and
- a coating on the seal at the seal-counterface, wherein the coating comprises a ternary oxide, wherein the ternary oxide is a calcium ternary oxide, wherein the calcium ternary oxide is selected from the group consisting of CaSO4, CaWO4, CaMoO4 and combinations thereof.
A seal for a gas turbine engine, comprising a seal comprised of a nickel-based superalloy and a coating on the seal, wherein the coating comprises a ternary oxide, wherein the ternary oxide contains a metal oxide that forms nanoparticles when subjected to sliding or vibratory motion, wherein the ternary oxide comprises a silver-based ternary oxide, and wherein the silver-based ternary oxide is selected from the group consisting of Ag3VO4, AgTaO3, Ag2MoO4 and combinations thereof.
A seal for a gas turbine engine, comprising a seal comprised of a nickel-based superalloy and a coating on the seal, wherein the coating comprises a ternary oxide, wherein the ternary oxide comprises a copper-based ternary oxide, and wherein the copper-based ternary oxide is selected from the group consisting of CuTa2O6, CuTaO3, CuMoO4 and combinations thereof.
A seal for a gas turbine engine, comprising a seal comprised of a nickel-based superalloy and a coating on the seal, wherein the coating comprises a ternary oxide, wherein the ternary oxide is a calcium ternary oxide, and wherein the calcium ternary oxide is selected from the group consisting of CaSO4, CaWO4, CaMoO4 and combinations thereof.
Dependencies are inferred from the claim text.