公开(公告)号：US11149651B2

公开(公告)日：2021-10-19

申请号：US16534154

申请日：2019-08-07

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Kelly M. Harrington

IPC: F01D5/34 ,  F01D11/00 ,  F02C7/36 ,  F01D5/02 ,  F02K3/06

Abstract: A rotor assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a rotor that has a hub carrying one or more rotatable blades. The rotor is mechanically attached to a shaft, and an annular seal is carried by the shaft. The annular seal includes a substrate, a first layer disposed on the substrate, and a second layer disposed on the first layer and arranged to establish a sealing relationship with the rotor. The second layer includes a solid lubricant that has molybdenum trioxide (MoO3). A method of sealing for a gas turbine engine is also disclosed.

公开(公告)号：US11255432B2

公开(公告)日：2022-02-22

申请号：US16375954

申请日：2019-04-05

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Kelly M. Harrington

IPC: F16J9/26

Abstract: A piston 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 metal alloy binder phase and a hard particle phase distributed through the binder phase.

公开(公告)号：US20200256467A1

公开(公告)日：2020-08-13

申请号：US16269673

申请日：2019-02-07

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Kelly M. Harrington

IPC: F16J15/16 ,  F02C7/28

Abstract: A compressor seal-ring assembly includes a seal formed of a nickel, cobalt or iron-based superalloy; a counterface positioned for sealing interaction with the seal; and a lubricant coating on the seal, the lubricant coating being formed of a CoCrAlY-containing material.

公开(公告)号：US11149854B2

公开(公告)日：2021-10-19

申请号：US16269673

申请日：2019-02-07

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Kelly M. Harrington

IPC: F16J15/16 ,  F02C7/28

Abstract: A compressor seal-ring assembly includes a seal formed of a nickel, cobalt or iron-based superalloy; a counterface positioned for sealing interaction with the seal; and a lubricant coating on the seal, the lubricant coating being formed of a CoCrAlY-containing material.

公开(公告)号：US20210040892A1

公开(公告)日：2021-02-11

申请号：US16534154

申请日：2019-08-07

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Kelly M. Harrington

IPC: F02C7/36 ,  F02K3/06 ,  F01D5/02 ,  F01D5/34

Abstract: A rotor assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a rotor that has a hub carrying one or more rotatable blades. The rotor is mechanically attached to a shaft, and an annular seal is carried by the shaft. The annular seal includes a substrate, a first layer disposed on the substrate, and a second layer disposed on the first layer and arranged to establish a sealing relationship with the rotor. The second layer includes a solid lubricant that has molybdenum trioxide (MoO3). A method of sealing for a gas turbine engine is also disclosed.

公开(公告)号：US20200318737A1

公开(公告)日：2020-10-08

申请号：US16375954

申请日：2019-04-05

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Kelly M. Harrington

IPC: F16J9/26

Abstract: A piston 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 metal alloy binder phase and a hard particle phase distributed through the binder phase.