公开(公告)号：US20210254719A1

公开(公告)日：2021-08-19

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: F16J15/3284 ,  F02C7/28

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：US20210254628A1

公开(公告)日：2021-08-19

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: F04D29/12 ,  F16J15/34

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：US20210254486A1

公开(公告)日：2021-08-19

申请号：US16791324

申请日：2020-02-14

Applicant: United Technologies Corporation

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

IPC: F01D11/00 ,  F01D25/00 ,  F01D25/18 ,  F16J15/16 ,  F16J15/30

Abstract: A seal assembly includes a carbon seal that has a sealing surface. A seal seat has a sealing surface and is positioned for rotation relative to the carbon seal. A diamond-like carbon coating at least partially forms the sealing surface on the seal seat.

公开(公告)号：US20210079801A1

公开(公告)日：2021-03-18

申请号：US16570072

申请日：2019-09-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Pantcho P. Stoyanov ,  Eli N. Ross

IPC: F01D11/00 ,  F01D25/12

Abstract: A seal assembly for a gas turbine engine may include a seal body coupled to an engine static structure of the gas turbine engine and a seal seat insert coupled to a radially extending portion of a shaft of the gas turbine engine. The seal body may be generally configured to be biased into contact with the seal seat insert to provide a sealing pressure between the seal body and the seal seat insert. In various embodiments, the seal seat insert is made from a ceramic material or a ceramic matrix composite.

公开(公告)号：US20200088055A1

公开(公告)日：2020-03-19

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：US20200056506A1

公开(公告)日：2020-02-20

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：US20180361471A1

公开(公告)日：2018-12-20

申请号：US15417873

申请日：2017-01-27

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Christopher W. Strock ,  Thomas J. Watson

IPC: B22F1/00 ,  C23C24/04 ,  F01D5/28

CPC classification number: B22F1/0059 ,  B22F2301/052 ,  B22F2301/15 ,  B22F2301/205 ,  B22F2303/01 ,  B22F2303/05 ,  B22F2999/00 ,  C23C4/06 ,  C23C24/04 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/611

Abstract: A coated article comprising: a substrate; and a coating on the substrate comprising: a metallic matrix comprising, by weight: Al as a largest constituent; 3.0-6.0 Cr; 1.5-4.0 Mn; 0.1-3.5 Co; and 0.3-2.0 Zr; and a filler and optionally porosity.