公开(公告)号：US11746907B2

公开(公告)日：2023-09-05

申请号：US16791269

申请日：2020-02-14

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/32 ,  F16J15/3284 ,  F02C7/28

CPC classification number: F16J15/3284 ,  F02C7/28 ,  F05D2220/32 ,  F05D2240/55

Abstract: A seal assembly includes a housing that includes a seal flange at least partially defining a seal opening. A carbon seal is located at least partially in the seal opening and includes a first axially facing surface. The seal flange includes an axially facing surface that has a carbide based coating and a diamond-like carbon coating in engagement with the first axially facing surface on the carbon seal.

公开(公告)号：US20200056483A1

公开(公告)日：2020-02-20

申请号：US16104584

申请日：2018-08-17

Applicant: United Technologies Corporation

Inventor： William J. Joost ,  Pantcho P. Stoyanov

IPC: F01D5/06 ,  F04D19/02 ,  F04D29/32 ,  F04D29/60

Abstract: A gas turbine engine is provided and includes a first rotating component having a first snap surface and a second rotating component having a second snap surface. The first and second snap surfaces are configured to interlock along an interface and at least one of the first and second snap surfaces comprising a tailored-friction material at the interface.

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：US11193384B2

公开(公告)日：2021-12-07

申请号：US16574589

申请日：2019-09-18

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Mark B. Gossner

IPC: F01D11/00 ,  C01B32/20

Abstract: A method for preparing a seal assembly for a gas turbine engine, comprising a seal comprising a carbon material; and a seal seat positioned for rotation relative to the seal, wherein the method comprises the steps of: pre-filming a sealing surface of the seal seat with a carbon-based tribofilm; and assembling the seal seat relative to the seal in a gas turbine engine.

公开(公告)号：US10920617B2

公开(公告)日：2021-02-16

申请号：US16104153

申请日：2018-08-17

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Mark B. Gossner

IPC: F01D25/18 ,  F02C7/28

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 and a first layer disposed on the substrate. The first layer includes copper, and a second layer is disposed on the first layer and arranged to establish a sealing relationship with the rotor. The second layer includes a solid lubricant. A method of sealing is also disclosed.

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：US11619237B2

公开(公告)日：2023-04-04

申请号：US16791298

申请日：2020-02-14

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/34 ,  F04D29/12 ,  C23C16/27 ,  C23C16/32 ,  C23C28/04

Abstract: A seal assembly includes a housing at least partially defining a seal opening and at least partially surrounding a rotatable shaft. A carbon seal is located at least partially in the seal opening and includes a sealing surface. The rotatable shaft includes a radially facing surface that has a carbide based coating and a diamond-like carbon coating in engagement with the sealing surface on the carbon seal.

公开(公告)号：US11346235B2

公开(公告)日：2022-05-31

申请号：US16431334

申请日：2019-06-04

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Mary E. Makowiec

IPC: F01D9/04 ,  F01D17/16

Abstract: A component for a gas turbine engine includes an airfoil. A first trunnion has an outer surface and extends from a first end of the airfoil. A first bushing at least partially surrounds the outer surface. At least one of the first bushing or the first trunnion includes a plurality of surface irregularities.

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：US20210062665A1

公开(公告)日：2021-03-04

申请号：US16574586

申请日：2019-09-18

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov

IPC: F01D11/00 ,  F16J15/3284

Abstract: A seal assembly for a gas turbine engine, having a seal formed of a carbon material; and a seal seat positioned for rotation relative to the seal, wherein the seal and the seal seat each have a sealing surface which together define a sliding seal, and wherein at least the sealing surface of the seal seat is made of the same carbon material as the sealing surface of the seal.