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：US20210140547A1

公开(公告)日：2021-05-13

申请号：US16679882

申请日：2019-11-11

Applicant: United Technologies Corporation

Inventor： Masayoshi Sonokawa ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/34 ,  F02C7/28

Abstract: An assembly includes a housing, a carrier, a spring element and a seal element. The housing includes a bore and an annular groove that extends axially along a centerline into the housing from the bore. The carrier projects axially along the centerline into the annular groove. The carrier is configured to translate axially along the centerline relative to the housing. The spring element is arranged within the annular groove. The spring element is configured to bias the carrier axially away from the housing along the centerline. The seal element is mounted to the carrier and arranged within the bore.

公开(公告)号：US10969017B2

公开(公告)日：2021-04-06

申请号：US16373165

申请日：2019-04-02

Applicant: United Technologies Corporation

Inventor： Changsheng Guo ,  Zaffir A. Chaudhry ,  Nasr A. Shuaib

IPC: F16J15/34 ,  F01D11/00 ,  F01D21/00 ,  F16N29/04

Abstract: A method of determining wear of a seal element includes rotating a seal plate relative to the seal element and such that the seal plate and the seal element form a rotational sealing interface. The seal element includes an insert embedded in the seal element. A portion of the seal element is worn with a sealing face of the seal plate. The insert is contacted with the sealing face of the seal plate. A portion of the insert is worn to create a wear particle of the insert. The presence of the wear particle in a lubrication oil is sensed with an oil monitoring system.

公开(公告)号：US10858955B2

公开(公告)日：2020-12-08

申请号：US15933537

申请日：2018-03-23

Applicant: United Technologies Corporation

Inventor： Julie J. Marquis ,  Armando Amador ,  David C. Kiely ,  Nasr A. Shuaib ,  Brian Stahl

IPC: F01D25/18 ,  F01D11/00 ,  F01D11/02 ,  F01D25/16 ,  F16C33/66

Abstract: A gas turbine engine includes a cover, a support, and a sealing member. The cover has a cover housing and a cover arm extending from the cover housing between a first arm end connected to the cover housing and a second arm end having a cover end surface. The support has a support body, a first support arm extending between a first support arm first end connected to the support body and a first support arm second end. The cover arm extends into the first support arm. The sealing member at least partially extends across a gap defined between the cover end surface and the first support arm.

公开(公告)号：US20200318740A1

公开(公告)日：2020-10-08

申请号：US16373165

申请日：2019-04-02

Applicant: United Technologies Corporation

Inventor： Changsheng Guo ,  Zaffir A. Chaudhry ,  Nasr A. Shuaib

IPC: F16J15/34 ,  F16N29/04 ,  F01D21/00

Abstract: A method of determining wear of a seal element includes rotating a seal plate relative to the seal element and such that the seal plate and the seal element form a rotational sealing interface. The seal element includes an insert embedded in the seal element. A portion of the seal element is worn with a sealing face of the seal plate. The insert is contacted with the sealing face of the seal plate. A portion of the insert is worn to create a wear particle of the insert. The presence of the wear particle in a lubrication oil is sensed with an oil monitoring system.