公开(公告)号：US10815810B2

公开(公告)日：2020-10-27

申请号：US16244409

申请日：2019-01-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： William M. Barker ,  Daniel J. Whitney ,  Michael G. McCaffrey ,  Thomas E. Clark

IPC: F01D11/08 ,  F01D25/24

Abstract: A blade outer air seal assembly may comprise a blade outer air seal segment and a blade outer air seal support coupled to the blade outer air seal segment. The blade outer air seal segment may comprise a forward rail and an aft rail. The forward rail may be castellated. The blade outer air seal support may comprise an aft flange and a first forward flange. A pin may be disposed through the aft rail, the aft flange, the first forward flange, and the forward rail.

公开(公告)号：US20200291804A1

公开(公告)日：2020-09-17

申请号：US16352150

申请日：2019-03-13

Applicant: United Technologies Corporation

Inventor： Thomas E. Clark ,  William M. Barker

IPC: F01D11/08 ,  F01D25/12

Abstract: A blade outer air seal assembly includes a support structure. A blade outer air seal has a plurality of seal segments arranged circumferentially about an axis and mounted in the support structure by a carrier. A coverplate is arranged between the carrier and at least one of the plurality of seal segments. The coverplate forms a first passage between the coverplate and the carrier and a second passage between the coverplate and the seal segment.

公开(公告)号：US20200291803A1

公开(公告)日：2020-09-17

申请号：US16352114

申请日：2019-03-13

Applicant: United Technologies Corporation

Inventor： Thomas E. Clark ,  William M. Barker

IPC: F01D11/08

Abstract: A blade outer air seal assembly includes a support structure. A blade outer air seal has a plurality of seal segments arranged circumferentially about an axis and mounted in the support structure by a carrier. The carrier has first and second hooks that extend radially outward from a platform along an axial length of the carrier. The first and second hooks are in engagement with the support structure.

公开(公告)号：US20200255345A1

公开(公告)日：2020-08-13

申请号：US16785132

申请日：2020-02-07

Applicant: United Technologies Corporation

Inventor： Thomas E. Clark ,  Kathryn S. Read ,  Winston Gregory Smiddy ,  Andrew J. Lazur

IPC: C04B35/80 ,  F01D5/18 ,  F01D5/28 ,  F01D25/12

Abstract: A method for forming a ceramic matrix composite (CMC) component with an internal cooling channel includes partially densifying a first fiber preform to form a portion of a final ceramic matrix volume, machining a first channel into a surface of the partially densified first fiber preform, covering the first channel with a fibrous member to form a near net shape fiber preform with an internal passage formed by the first channel and the fibrous member, and densifying the near net shape fiber preform.

公开(公告)号：US20200182077A1

公开(公告)日：2020-06-11

申请号：US16210215

申请日：2018-12-05

Applicant: United Technologies Corporation

Inventor： Dean W. Johnson ,  Thomas E. Clark

IPC: F01D11/08

Abstract: A blade outer air seal includes a base portion that extends between a first circumferential side and a second circumferential side. A first wall is circumferentially spaced from a second wall. The first and second wall extend outward from the base portion and are connected by an outer wall to define a passage that extends in a generally axial direction along the base portion.

公开(公告)号：US20200173299A1

公开(公告)日：2020-06-04

申请号：US16207918

申请日：2018-12-03

Applicant: United Technologies Corporation

Inventor： William M. Barker ,  Thomas E. Clark

IPC: F01D11/12

Abstract: A method of forming a blade outer air seal includes applying a cavity layer that has a plurality of cavities to a radially inner side of a seal body. The cavity layer is coated with an abradable coating.

公开(公告)号：US20200095880A1

公开(公告)日：2020-03-26

申请号：US16139209

申请日：2018-09-24

Applicant: United Technologies Corporation

Inventor： Thomas E. Clark ,  William M. Barker

IPC: F01D11/08

Abstract: A turbine section for a gas turbine engine includes a turbine blade that extends radially outwardly to a radially outer tip and for rotation about an axis of rotation. A blade outer air seal has a plurality of segments mounted in a support structure and arranged circumferentially about the axis of rotation and radially outward of the outer tip. A feather seal is arranged between each of the plurality of segments. The feather seal is formed from a ceramic matrix composite material.

公开(公告)号：US20200025011A1

公开(公告)日：2020-01-23

申请号：US16038480

申请日：2018-07-18

Applicant: United Technologies Corporation

Inventor： William M. Barker ,  Thomas E. Clark

IPC: F01D11/08

Abstract: A gas turbine engine includes a turbine section including at least one turbine rotor having at least one blade. A blade outer air seal is positioned radially outward of a radially outer tip of the at least one turbine blade. The blade outer air seal has a forward hook and an aft hook. The forward hook is supported on a forward retainer and the aft hook is supported on an aft hook retainer. The aft hook retainer provides structure to prevent rotation of the blade outer air seal relative to the aft hook retainer. There is an interference fit between the aft hook retainer and the forward retainer. A load path is provided from a static structure through the aft hook retainer to the forward retainer.

公开(公告)号：US10364846B2

公开(公告)日：2019-07-30

申请号：US15075871

申请日：2016-03-21

Applicant: United Technologies Corporation

Inventor： Thomas E. Clark ,  Gary L. Grogg ,  Eric Charles Mundell

IPC: F16J15/16 ,  F01D25/18 ,  F01D25/16 ,  F16C33/72 ,  F01D11/00 ,  F16C37/00

Abstract: A seal runner may have an inner annular member, an outer annular member, and a radial wall member joined to the inner annular member according to an angle and extending from the inner annular member to the outer annular member. The seal runner may be positioned axially along a shaft and a bearing may be positioned axially along the shaft such that it is radially between the inner annular member and the outer annular member. In this regard, the seal runner may resemble a “C-shape.” A seal may interface with a seal land radially outboard of the outer annular member. Thus, the seal may be positioned axially near to the bearing so that the axial length of a shaft and accompanying bearing compartment hardware may be minimized.

公开(公告)号：US20180119560A1

公开(公告)日：2018-05-03

申请号：US15339581

申请日：2016-10-31

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Jose R. Paulino ,  Ken F. Blaney ,  Terence P. Tyler, JR. ,  Daniel S. Rogers ,  Anthony B. Swift ,  Thomas E. Clark

IPC: F01D11/10 ,  F01D9/02 ,  F01D25/24

CPC classification number: F01D11/10 ,  F01D9/02 ,  F01D11/003 ,  F01D11/14 ,  F01D25/14 ,  F01D25/24 ,  F01D25/246 ,  F05D2220/32 ,  F05D2240/11 ,  F05D2240/55 ,  Y02T50/672 ,  Y02T50/675

Abstract: A seal assembly includes a blade outer air seal, a downstream vane, and a pressure wall, according to various embodiments. The blade outer air seal may include a radially outer surface and the downstream vane may be coupled to the blade outer air seal via a fluid sealing engagement. The pressure wall may be coupled to the blade outer air seal and may define a metering orifice. In various embodiments, the metering orifice of the pressure wall is configured to meter air flow from a first plenum upstream of the pressure wall to a second plenum downstream of the pressure wall. In various embodiments, at least a preponderance of the radially outer surface of the blade outer air seal at least partially defines the first plenum and the fluid sealing engagement at least partially defines the second plenum.