公开(公告)号：US10578019B2

公开(公告)日：2020-03-03

申请号：US15405688

申请日：2017-01-13

Applicant: United Technologies Corporation

Inventor： Christopher M. Valva ,  David Barger ,  Sean P. McGee

IPC: F02C7/06 ,  F01D25/18 ,  F16N7/28 ,  F16N11/04 ,  F16N7/14 ,  F01D25/24

Abstract: Aspects of the disclosure are directed to a system comprising: a lubrication applicator device that includes: a base having a cavity that is configured to store a lubricant, and a plunger that is configured to seat a head of a bolt in a counterbore of the base, where the plunger is axially movable in the cavity and is configured to be at least partially recessed in the cavity to cause a side of the bolt to be immersed in the lubricant.

公开(公告)号：US20180291960A1

公开(公告)日：2018-10-11

申请号：US15481934

申请日：2017-04-07

Applicant: United Technologies Corporation

Inventor： Christopher T. Anglin ,  Dwayne E. Messerschmidt ,  Christopher M. Valva ,  Todd M. Gaulin

IPC: F16C33/78 ,  F16J15/44

Abstract: A seal assembly for a bearing compartment of a gas turbine engine includes a seal carrier, a seal element, a seal plate, and a trough. At least a portion of the seal element is within the seal carrier. The seal plate is in contact with the seal element and is configured to rotate relative to the seal element. The trough extends around the seal plate and comprises an annular channel positioned to capture oil slung from the seal plate.

公开(公告)号：US08702373B1

公开(公告)日：2014-04-22

申请号：US14013952

申请日：2013-08-29

Applicant: United Technologies Corporation

Inventor： Christopher M. Valva ,  Brian P. Cigal

IPC: F01D25/20 ,  F02C7/36 ,  F16H57/08

CPC classification number: F01D25/20 ,  F01M1/02 ,  F01M2001/0207 ,  F01M2001/0238 ,  F01M2001/0253 ,  F02C7/06 ,  F02C7/32 ,  F02C7/36 ,  F05D2220/32 ,  F05D2260/98 ,  F16H57/0441 ,  F16H57/0479 ,  F16H57/0495 ,  F16N13/20

Abstract: The present disclosure is applicable to all gear trains using a journal bearing as a means of supporting gear shaft rotation. It is related in some embodiments to a system and method for supplying lubricant to the journal bearings of a gear-turbofan engine gear train when the fan rotor is subjected to a wind-milling condition in both directions, either clockwise or counter-clockwise.

Abstract translation: 本公开适用于使用轴颈轴承作为支撑齿轮轴旋转的装置的所有齿轮系。 在一些实施例中，当风扇转子在两个方向（顺时针或逆时针）受到风切割状态时，将润滑剂供应到齿轮 - 涡扇风扇发动机齿轮系的轴颈轴承的系统和方法。

公开(公告)号：US20210131304A1

公开(公告)日：2021-05-06

申请号：US16668786

申请日：2019-10-30

Applicant: United Technologies Corporation

Inventor： David C. Kiely ,  Todd A. Davis ,  Russell B. Witlicki ,  Christopher M. Valva ,  Andrew Newton

IPC: F01D25/04

Abstract: A gas turbine engine component includes an inner support structure surrounding an engine center axis and fixed to an engine static structure, an outer support structure spaced radially outward of the inner support structure, and a curved beam comprised of a plurality of curved beam spring segments that are positioned adjacent to each other to form a ring. The inner and outer support structures are coupled together around the curved beam to enclose the curved beam therebetween and form an assembly. A bearing is spaced radially inward of the assembly.

公开(公告)号：US10830078B2

公开(公告)日：2020-11-10

申请号：US16131145

申请日：2018-09-14

Applicant: United Technologies Corporation

Inventor： Brad E. Fiore ,  James B. Coffin ,  Christopher M. Valva

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

Abstract: An assembly is provided for a turbine engine. This turbine engine assembly includes a tower shaft rotatable about an axis, an engine component rotatable with the tower shaft about the axis, and a seal assembly. The engine component extends axially along the axis to an end surface. The seal assembly includes a carbon seal element, where the carbon seal element circumscribes the tower shaft and axially engages the end surface.

公开(公告)号：US10767867B2

公开(公告)日：2020-09-08

申请号：US15927285

申请日：2018-03-21

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Todd A. Davis ,  Christopher M. Valva ,  Daniel Rosen ,  Armando Amador ,  Aneil S. Hegde ,  Ramin M. Rafatpanah

IPC: F01D25/16 ,  F23R3/60 ,  F02C7/28 ,  F23R3/00 ,  F01D11/00 ,  F01D9/06

Abstract: A bearing support may include a central shaft, a flange shaft, and a tube boss. The central shaft may include a central longitudinal axis extending between a first end and a second end of the bearing support. The flange shaft may extend radially outward of the central shaft at an acute angle, relative to the central longitudinal axis from the first end to the second end, and the flange shaft may include a rim defining an aperture. The tube boss extends from the central shaft radially outward through the aperture, according to various embodiments. An annular channel may be between the rim and the tube boss.

公开(公告)号：US20190383168A1

公开(公告)日：2019-12-19

申请号：US16555358

申请日：2019-08-29

Applicant: United Technologies Corporation

Inventor： Christopher M. Valva ,  Brian P. Cigal

IPC: F01D25/20 ,  F16H57/04 ,  F02C7/36 ,  F02C7/32 ,  F02C7/06 ,  F01M1/02

Abstract: The present disclosure is applicable to all gear trains using a journal bearing as a means of supporting gear shaft rotation. It is related in some embodiments to a system and method for supplying lubricant to the journal bearings of a gear-turbofan engine gear train when the fan rotor is subjected to a wind-milling condition in both directions, either clockwise or counterclockwise.

公开(公告)号：US11466588B2

公开(公告)日：2022-10-11

申请号：US16668786

申请日：2019-10-30

Applicant: United Technologies Corporation

Inventor： David C. Kiely ,  Todd A. Davis ,  Russell B. Witlicki ,  Christopher M. Valva ,  Andrew Newton

IPC: F01D25/04 ,  F01D25/16

Abstract: A gas turbine engine component includes an inner support structure surrounding an engine center axis and fixed to an engine static structure, an outer support structure spaced radially outward of the inner support structure, and a curved beam comprised of a plurality of curved beam spring segments that are positioned adjacent to each other to form a ring. The inner and outer support structures are coupled together around the curved beam to enclose the curved beam therebetween and form an assembly. A bearing is spaced radially inward of the assembly.

公开(公告)号：US11035252B2

公开(公告)日：2021-06-15

申请号：US16668684

申请日：2019-10-30

Applicant: United Technologies Corporation

Inventor： Todd A. Davis ,  Russell B. Witlicki ,  Christopher M. Valva ,  Andrew Newton ,  David C. Kiely

IPC: F01D25/16 ,  F16C27/04 ,  F16C19/00

Abstract: A gas turbine engine component includes a ring comprising a single-piece component having an outer peripheral surface and an inner peripheral surface that surrounds an engine center axis, a plurality of outer diameter pedestals formed in the outer peripheral surface and circumferentially spaced apart from each other, and a plurality of inner diameter pedestals formed in the inner peripheral surface and circumferentially spaced apart from each other. A plurality of recesses are formed in the outer peripheral surface and are circumferentially spaced apart from each other.

公开(公告)号：US10669873B2

公开(公告)日：2020-06-02

申请号：US15481091

申请日：2017-04-06

Applicant: United Technologies Corporation

Inventor： Christopher M. Valva ,  Christopher T. Anglin ,  Brian P. Cigal

IPC: F01D11/00 ,  F01D25/16 ,  F01D25/08 ,  F16J15/16 ,  F01D25/18 ,  F02C7/28

Abstract: An insulated seal seat assembly comprises a shaft configured and arranged to rotate about an axial axis, a seal seat that is secured to the shaft, and a thermal insulator configured and arranged radially between the shaft and the seal seat.