公开(公告)号：US10975912B1

公开(公告)日：2021-04-13

申请号：US16785194

申请日：2020-02-07

Applicant: United Technologies Corporation

Inventor： Alexander Nelson ,  Kevin Duffy

IPC: F16C33/38 ,  F16C33/46 ,  F16C43/06 ,  F16C19/26

Abstract: A bearing assembly includes a bearing cage and a supplementary ring. The bearing cage includes an annular body and a plurality of bearing elements disposed about the annular body. The supplementary ring includes an annular collar and a plurality of retention elements. The annular collar is disposed concentrically about the bearing cage. The plurality of retention elements is connected to and extends axially from the first annular collar. Each retention element is aligned between adjacent bearing elements. The plurality of retention elements is disposed to retain the plurality of bearing elements in the annular body of the bearing cage.

公开(公告)号：US10962118B2

公开(公告)日：2021-03-30

申请号：US16155458

申请日：2018-10-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Kevin Duffy ,  Brady Walker

IPC: F16J15/36

Abstract: A seal assembly includes a seal nose, a bellows, and a plurality of bristles. The seal nose is configured to be in sealing contact with a rotating seal plate, the bellows extends between and couples the seal nose to a support structure, and the plurality of bristles extends from the support structure toward the bellows, with at least one bristle of the plurality of bristles being in contact with the bellows to damp vibration of the bellows.

公开(公告)号：US20200063585A1

公开(公告)日：2020-02-27

申请号：US16670531

申请日：2019-10-31

Applicant: United Technologies Corporation

Inventor： Ronnie K. Kovacik ,  Kevin Duffy ,  Brady Walker ,  Antonio F. Artiles

IPC: F01D11/00 ,  F16J15/16 ,  F01D25/12 ,  F16J15/447 ,  F16J15/34

Abstract: Aspects of the disclosure are directed to a sealing system for an engine having an axial centerline, comprising: a stationary carbon segment, and a seal plate that rotates when the engine is operated, where the seal plate includes an end face that is opposed to an interface between the carbon segment and the seal plate, and where the end face includes at least one groove that conveys a liquid cooling fluid.

公开(公告)号：US10520035B2

公开(公告)日：2019-12-31

申请号：US15343486

申请日：2016-11-04

Applicant: United Technologies Corporation

Inventor： Kevin Duffy ,  Anthony Spagnoletti

IPC: F16C33/76 ,  F16C35/04 ,  F01D25/16 ,  F02C7/06 ,  F16C33/72

Abstract: A bearing compartment assembly includes a bearing compartment with a bearing and a plenum, a buffer system that supplies pressure to an exterior of the bearing compartment, and a reactive volume vessel connected to the bearing compartment. The reactive volume vessel has a displaceable member that is movable between two positions, one of which adds additional volume to the bearing compartment.

公开(公告)号：US20190153946A1

公开(公告)日：2019-05-23

申请号：US15821157

申请日：2017-11-22

Applicant: United Technologies Corporation

Inventor： Kevin Duffy ,  Ronnie K. Kovacik ,  Keven G. Van Duyn ,  Jonathan F. Zimmitti ,  Richard J. Rubendall ,  Michael M. Davis ,  Joseph G. Colucci ,  Steven M. Danley ,  Christopher J. Zuck ,  Tina Rezvani

IPC: F02C7/06 ,  F16C35/07 ,  F16C19/54 ,  F01D25/16

Abstract: Aspects of the disclosure are directed to a rotatable shaft, and a plurality of bearings coupled to the rotatable shaft, where the plurality of bearings include a first bearing, a second bearing, and a third bearing, where the first bearing defines an axial first bearing centerline, where the second bearing defines an axial second bearing centerline, where the third bearing defines an axial third bearing centerline, and where the axial second bearing centerline is radially offset from the axial first bearing centerline and the axial third bearing centerline.

公开(公告)号：US20180106157A1

公开(公告)日：2018-04-19

申请号：US15294923

申请日：2016-10-17

Applicant: United Technologies Corporation

Inventor： Ronnie K. Kovacik ,  Kevin Duffy ,  Brady Walker ,  Antonio F. Artiles

IPC: F01D11/00 ,  F16J15/16 ,  F01D25/12

CPC classification number: F01D11/003 ,  F01D25/12 ,  F01D25/125 ,  F05D2220/32 ,  F05D2240/55 ,  F05D2260/232 ,  F05D2300/224 ,  F16J15/162 ,  F16J15/3404 ,  F16J15/342 ,  F16J15/4476 ,  Y02T50/675

Abstract: Aspects of the disclosure are directed to a sealing system for an engine having an axial centerline, comprising: a stationary carbon segment, and a seal plate that rotates when the engine is operated, where the seal plate includes an end face that is opposed to an interface between the carbon segment and the seal plate, and where the end face includes at least one groove that conveys a liquid cooling fluid.

公开(公告)号：US09909438B2

公开(公告)日：2018-03-06

申请号：US15096952

申请日：2016-04-12

Applicant: United Technologies Corporation

Inventor： Kevin Duffy ,  Ronald K. Kovacik ,  Brady Walker ,  Antonio F. Artiles

IPC: F16J15/16 ,  F01D11/00 ,  F16J15/40

CPC classification number: F01D11/003 ,  F01D11/04 ,  F01D25/16 ,  F01D25/183 ,  F02C7/28 ,  F05D2220/32 ,  F05D2240/50 ,  F05D2240/53 ,  F05D2240/60 ,  F16C32/0625 ,  F16C33/741 ,  F16C2360/23 ,  F16J15/406

Abstract: Aspects of the disclosure are directed to a system associated with an engine of an aircraft, the system comprising: a fluid source that is configured to provide a fluid at a first pressure value, a carbon seal, a seal plate that includes at least one lift-off feature that interfaces to the carbon seal, and a pressure boosting mechanism configured to obtain the fluid from the fluid source, increase the pressure of the fluid to a second pressure value, and provide the fluid at the second pressure value to the at least one lift-off feature.

公开(公告)号：US10655499B2

公开(公告)日：2020-05-19

申请号：US15850912

申请日：2017-12-21

Applicant: United Technologies Corporation

Inventor： Kevin Duffy ,  Ronnie K. Kovacik ,  Michael Gantt

IPC: F01D25/16 ,  F16C25/08 ,  F02C7/06 ,  F16C35/04 ,  F16C27/08 ,  F16C19/52 ,  F16C19/16 ,  F16C19/54 ,  F16C27/06 ,  F16C19/55

Abstract: A preloaded ball bearing assembly includes a primary bearing assembly disposed between a rotating component and a static structure. The assembly also includes a preload bearing assembly disposed in contact with the rotating component. The assembly further includes a flexible support disposed between the primary bearing assembly and the preload bearing assembly.

公开(公告)号：US20190195088A1

公开(公告)日：2019-06-27

申请号：US15850912

申请日：2017-12-21

Applicant: United Technologies Corporation

Inventor： Kevin Duffy ,  Ronnie K. Kovacik ,  Michael Gantt

IPC: F01D25/16 ,  F16C25/08 ,  F16C35/04 ,  F02C7/06

CPC classification number: F01D25/164 ,  F02C7/06 ,  F05D2240/54 ,  F16C19/16 ,  F16C19/525 ,  F16C19/54 ,  F16C19/546 ,  F16C19/55 ,  F16C25/08 ,  F16C25/083 ,  F16C27/066 ,  F16C27/08 ,  F16C35/04 ,  F16C2360/23

Abstract: A preloaded ball bearing assembly includes a primary bearing assembly disposed between a rotating component and a static structure. The assembly also includes a preload bearing assembly disposed in contact with the rotating component. The assembly further includes a flexible support disposed between the primary bearing assembly and the preload bearing assembly.

公开(公告)号：US10287981B2

公开(公告)日：2019-05-14

申请号：US14674234

申请日：2015-03-31

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Kevin Duffy ,  Nasr A. Shuaib

IPC: F02C1/00 ,  F02C7/06 ,  F02C7/28 ,  F02C7/12 ,  F01D25/18 ,  F16J15/447 ,  F01D25/12 ,  F01D11/00 ,  F01D11/02 ,  F16C33/76 ,  F16C33/66 ,  F16C19/06

Abstract: One exemplary embodiment of this disclosure relates to a gas turbine engine. The engine includes a compressor section, a combustor section, a turbine section, and at least one rotatable shaft. The engine further includes a bearing assembly including an inner race, an outer race, and a plurality of rolling elements. A seal assembly is also included. The seal assembly includes a seal plate mounted for rotation with the rotatable shaft. The seal plate establishes a boundary of a tortuous passageway.