公开(公告)号：US11230940B1

公开(公告)日：2022-01-25

申请号：US17006983

申请日：2020-08-31

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey ,  Joseph D. Evetts ,  Kristine M. Carnavos ,  Conway Chuong ,  Christopher W. Robak ,  William Proscia ,  Purity Dele-Oni ,  Caroline Karanian ,  John E. Paul ,  Jagannath Pranatharthikaran

IPC: F01D11/02 ,  F01D11/08

Abstract: A rotational equipment assembly includes a plurality of seal shoes, a seal base, a plurality of spring elements and a secondary seal assembly. The seal shoes are arranged circumferentially around an axial centerline and include a first seal shoe. The first seal shoe includes a first seal shoe base and a first seal shoe rib that projects axially out from the first seal shoe base to an axial distal end of the first seal shoe rib. The seal base extends circumferentially around the axial centerline. The spring elements include a first spring element that connects and extends between the first seal shoe and the seal base. The secondary seal assembly is configured to seal a gap between the seal base and the seal shoes. The secondary seal assembly includes a free floating seal plate that axially contacts and is configured to slide radially along the first seal shoe rib.

公开(公告)号：US20230296028A1

公开(公告)日：2023-09-21

申请号：US18311443

申请日：2023-05-03

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Ross Wilson ,  John R. Farris ,  Michael G. McCaffrey ,  Theodore W. Hall ,  John J. Korzendorfer ,  Elizabeth F. Vinson ,  Jeffrey Michael Jacques ,  John E. Paul ,  Edwin Otero ,  Alan W. Stoner

IPC: F01D11/02 ,  F16J15/44 ,  F16F15/06 ,  F01D25/04

CPC classification number: F01D11/02 ,  F01D11/025 ,  F01D25/04 ,  F16F15/06 ,  F16J15/44 ,  F16J15/442 ,  F05D2220/32 ,  F05D2240/55 ,  F05D2260/96 ,  F05D2300/171

Abstract: A method of damping vibrations in a seal includes inserting a first wave spring between a first beam and a second beam of the seal. The seal can be for a gas turbine engine and can include a full hoop outer ring, a shoe coupled to the full hoop outer ring via the first beam (e.g., an outer beam) and the second beam (e.g., an inner beam), and the first wave spring in contact with the first beam and the second beam.

公开(公告)号：US11674401B2

公开(公告)日：2023-06-13

申请号：US15931434

申请日：2020-05-13

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Ross Wilson ,  John R. Farris ,  Michael G. McCaffrey ,  Theodore W. Hall ,  John J. Korzendorfer ,  Elizabeth F. Vinson ,  Jeffrey Michael Jacques ,  John E. Paul ,  Edwin Otero ,  Alan W. Stoner

IPC: F16J15/44 ,  F01D11/02 ,  F16F15/06 ,  F01D25/04

CPC classification number: F01D11/02 ,  F01D11/025 ,  F01D25/04 ,  F16F15/06 ,  F16J15/44 ,  F16J15/442 ,  F05D2220/32 ,  F05D2240/55 ,  F05D2260/96 ,  F05D2300/171

Abstract: A seal for a gas turbine engine includes a full hoop outer ring, a shoe coupled to the full hoop outer ring via an inner beam and an outer beam, and a wave spring in contact with at least one of the inner beam or the outer beam.

公开(公告)号：US20200271006A1

公开(公告)日：2020-08-27

申请号：US15931434

申请日：2020-05-13

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Ross Wilson ,  John R. Farris ,  Michael G. McCaffrey ,  Theodore W. Hall ,  John J. Korzendorfer ,  Elizabeth F. Vinson ,  Jeffrey Michael Jacques ,  John E. Paul ,  Edwin Otero ,  Alan W. Stoner

IPC: F01D11/02 ,  F16J15/44 ,  F16F15/06 ,  F01D25/04

Abstract: A seal for a gas turbine engine includes a full hoop outer ring, a shoe coupled to the full hoop outer ring via an inner beam and an outer beam, and a wave spring in contact with at least one of the inner beam or the outer beam.