公开(公告)号：US11549588B2

公开(公告)日：2023-01-10

申请号：US15946254

申请日：2018-04-05

Applicant: United Technologies Corporation

Inventor： Jeremy Drake ,  Timothy M. Davis ,  Mark J. Rogers ,  Jose R. Paulino

IPC: F16J15/32 ,  F16J15/3288 ,  F01D11/00 ,  F01D11/08

Abstract: A brush seal is provided that includes a top plate, a back plate, and a bristle pack. The bristle pack is secured at a joint between the top plate and the back plate. The bristle pack includes a first bristle set extending from the joint, a second bristle set extending from the joint, and a sliding backing plate. The sliding backing plate includes a sliding portion and a support portion. The sliding portion is disposed contiguous with the second bristle set. The support portion has an inner face and a support face. The inner face is in contact with a distal end of the second bristle set. The support face is configured to support at least a portion of the first bristle set. The sliding backing plate is configured to slide relative to the second bristle set.

公开(公告)号：US11542016B2

公开(公告)日：2023-01-03

申请号：US16360280

申请日：2019-03-21

Applicant: United Technologies Corporation

Inventor： Frederick M. Schwarz ,  Michael Winter ,  Charles E. Lents ,  Nathan Snape ,  Alan H. Epstein

IPC: F25B9/14 ,  B64D33/08 ,  B64D13/06 ,  F25J1/00 ,  B64D13/08 ,  F02C7/141 ,  F02C7/16 ,  F02C9/18 ,  F25J3/04 ,  B01D45/08 ,  B01D53/00 ,  B03C1/28 ,  B64D27/12 ,  F01D15/00 ,  F01D25/12 ,  F02C6/08 ,  F02C7/143 ,  F02C7/18 ,  F02K3/06 ,  F17C7/02 ,  F17C7/04 ,  B64D37/32

Abstract: A cryogenic cooling system for an aircraft includes a first air cycle machine, a second air cycle machine, and a means for collecting liquid air. The first air cycle machine is operable to output a cooling air stream based on a first air source. The second air cycle machine is operable to output a chilled air stream at a cryogenic temperature based on a second air source cooled by the cooling air stream of the first air cycle machine. An output of the second air cycle machine is provided to the means for collecting liquid air.

公开(公告)号：US11530650B2

公开(公告)日：2022-12-20

申请号：US16034573

申请日：2018-07-13

Applicant: United Technologies Corporation

Inventor： Nathan K. Galle ,  Steven M. Dvorak

IPC: F02C9/18 ,  F02C6/20 ,  F02C7/18

Abstract: A gas turbine engine includes a compressor section, a combustor section, and a turbine section operably coupled to the compressor section. A primary flow path is defined through the compressor section, the combustor section, and the turbine section. An engine case surrounds the compressor section, the combustor section, and the turbine section. The gas turbine engine also includes a means for providing an active variable cooling flow through a bypass duct external to the engine case to a secondary flow cavity of the turbine section.

公开(公告)号：US11524363B2

公开(公告)日：2022-12-13

申请号：US16743431

申请日：2020-01-15

Applicant: United Technologies Corporation

Inventor： Wangen Lin

IPC: B23K26/342 ,  B22F5/00 ,  F01D5/00 ,  F01D9/04 ,  B23P6/00 ,  B23K26/32 ,  B22F7/06 ,  B23K26/144 ,  F01D25/24 ,  B23K101/00 ,  C21D9/50 ,  B23K103/08 ,  C22C19/05

Abstract: A method of reworking or repairing a component includes removing a casting defect from a component manufactured of a non-fusion weldable base alloy to form a cavity that results in a through hole; sealing the through hole with a backing; and at least partially filling the cavity with a multiple of layers of a multiple of laser powder deposition spots, each of the multiple of laser powder deposition spots formed of a filler alloy, a first layer of the multiple of layers includes a perimeter of the multiple of laser powder deposition spots that overlap a wall of the cavity and the backing.

公开(公告)号：US11519368B2

公开(公告)日：2022-12-06

申请号：US16736342

申请日：2020-01-07

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Curtis C. Cowan ,  Rebecca R. Dunnigan ,  Gary D. Roberge

IPC: F02M35/10 ,  B60K13/02

Abstract: A cooling system for a gas turbine engine may comprise a plenum extending circumferentially around an outer engine case structure. The plenum may comprise a supply conduit and a return conduit. The supply conduit and the return conduit may be in fluid communication with a heat exchanger. The heat exchanger may be disposed between the outer engine case structure and an inner engine case structure. The plenum may be configured to provide enhance heat transfer for the cooling system.

公开(公告)号：US11519291B2

公开(公告)日：2022-12-06

申请号：US15868289

申请日：2018-01-11

Applicant: United Technologies Corporation

Inventor： Colin J. Kling

IPC: F01D21/04 ,  F01D25/24 ,  B32B3/08 ,  B32B1/08 ,  B32B3/28 ,  B32B5/26 ,  B29C70/24 ,  B29C70/22 ,  B29D99/00 ,  B29C70/70 ,  D04C1/06 ,  B29C70/72

Abstract: A gas turbine engine component includes a tubular body section including a plurality of fiber wraps encompassed within a matrix composition and one or more integrally-formed stiffeners extending from an outer surface of the body section and in a component circumferential direction around the body section. The stiffener includes one or more fiber wraps extending radially outwardly from the body section over a form and to the body section from the form.

公开(公告)号：US11506079B2

公开(公告)日：2022-11-22

申请号：US16572806

申请日：2019-09-17

Applicant: United Technologies Corporation

Inventor： Andrew V. Schwendenmann ,  Francis Parnin ,  Matthew Gomes

IPC: F01M11/00 ,  F02C7/06 ,  F04D29/06 ,  F16C33/10 ,  F16N21/00 ,  F01D25/18

Abstract: A diffuser for an oil drainback system drain tube includes a flow chamber configured for attachment to an open end of a drain tube, wherein the flow chamber has a side wall and an end wall, and openings in at least the side wall.

公开(公告)号：US11499116B2

公开(公告)日：2022-11-15

申请号：US16717549

申请日：2019-12-17

Applicant: United Technologies Corporation

Inventor： Seyed Reza Mahmoudi ,  Catalin G. Fotache

IPC: C10M149/14 ,  C10M145/14 ,  F16C33/66 ,  C10N40/02

Abstract: A low friction coated article includes a first structure that has a first lubricated surface coated with a first polyelectrolyte coating. A second structure has a second lubricated surface with a second polyelectrolyte coating opposite the first lubricated surface. The first and second polyelectrolyte coatings include alternating layers of positively charged polyelectrolyte layers and negatively charged polyelectrolyte layers hydrated with a lubricant.

公开(公告)号：US11492973B2

公开(公告)日：2022-11-08

申请号：US16364524

申请日：2019-03-26

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Paul W. Duesler ,  Frederick M. Schwarz

IPC: F28F7/00 ,  F02C7/18 ,  F02K3/115 ,  F02C7/141 ,  F02C7/20 ,  F04D29/58 ,  F28D1/047 ,  F28D7/06 ,  F28F21/08 ,  F28F9/013 ,  F28D21/00 ,  F04D19/02 ,  F28F9/22

Abstract: A heat exchanger (HEX) for cooling air in a gas turbine engine is provided. The HEX may comprise a central manifold comprising an inlet portion, a first outlet portion, and a second outlet portion. The HEX may further comprise a plurality of tubes coupled to the central manifold, the plurality of tubes comprising at least a first tube, a second tube, a third tube, and a fourth tube, a shroud at least partially encasing said plurality of tubes, and a cooling air flow path defined by at least one of the shroud, the plurality of tubes, and an outer surface of the central manifold, wherein the cooling air flow path is orthogonal to said plurality of tubes.

公开(公告)号：US11485520B2

公开(公告)日：2022-11-01

申请号：US16104435

申请日：2018-08-17

Applicant: United Technologies Corporation

Inventor： Nagendra Somanath ,  Ryan B. Noraas ,  Michael J. Giering

IPC: G06K9/00 ,  B64F5/10 ,  G05B19/4097 ,  G06K9/62 ,  G06N3/08 ,  G06T3/40 ,  G06T7/00

Abstract: A method for designing a material for an aircraft component includes training a neural network to correlate microstructural features of an alloy with material properties of the alloy by at least providing a set of images of the alloy to the neural network. Each of the images in the set of images has varied constituent compositions. The method further includes providing the neural network with a set of determined material properties corresponding to each image, associating the microstructural features of each image with the set of empirically determined data corresponding to the image, and determining non-linear relationships between the microstructural features and corresponding empirically determined material properties via a machine learning algorithm, receiving a set of desired material properties of the alloy for aircraft component, and determining a set of microstructural features capable of achieving the desired material properties of the alloy based on the determined non-linear relationships.