公开(公告)号：US20250052168A1

公开(公告)日：2025-02-13

申请号：US18818804

申请日：2024-08-29

Applicant: RTX CORPORATION

Inventor： Michael E. McCune ,  Lawrence E. Portlock ,  Frederick M. Schwarz

IPC: F01D15/12 ,  F01D1/02 ,  F01D5/02 ,  F01D25/16 ,  F01D25/18 ,  F02C7/32 ,  F02C7/36 ,  F02K3/06 ,  F16H57/04 ,  F16H57/08

Abstract: A gas turbine engine according to an example of the present disclosure includes a propulsor section including a propulsor supported on a propulsor shaft, a turbine section including a turbine shaft, a compressor section having a plurality of compressor hubs with blades driven by the turbine shaft about an engine axis, and an epicyclic gear train interconnecting the propulsor shaft and the turbine shaft. The epicyclic gear train includes a sun gear coupled to the turbine shaft, intermediary gears arranged circumferentially about and meshing with the sun gear, a carrier and a ring gear including first and second portions. The first and second portions have axially opposed faces abutting one another at a radial interface.

公开(公告)号：US12221890B2

公开(公告)日：2025-02-11

申请号：US18419938

申请日：2024-01-23

Applicant: IHI Corporation

Inventor： Dai Kanzaki

IPC: F01D1/02 ,  F01D9/02 ,  F01D25/24

Abstract: Provided is a turbine including: a shaft; a turbine wheel mounted on one side of the shaft; an accommodating portion configured to accommodate the turbine wheel; a first turbine scroll flow passage that extends around the turbine wheel on a radially outer side, and communicates with the accommodating portion; a second turbine scroll flow passage that extends around the turbine wheel on the radially outer side, communicates with the accommodating portion, and is arranged on the one side with respect to the first turbine scroll flow passage; a first tongue portion that is provided at a position facing a downstream end of the first turbine scroll flow passage, and is inclined to one side of the turbine wheel in a circumferential direction as extending toward the one side; and a second tongue portion that is provided at a position facing a downstream end of the second turbine scroll flow passage, and is inclined to another side of the turbine wheel in the circumferential direction as extending toward the one side.

公开(公告)号：US12060840B2

公开(公告)日：2024-08-13

申请号：US18055723

申请日：2022-11-15

Applicant: HELENG INC.

Inventor： Jack Ing Jeng

IPC: F02C9/26 ,  F01D1/02 ,  F01D17/02 ,  F01D19/00 ,  F02C7/22 ,  F02C7/266

CPC classification number: F02C9/26 ,  F01D1/026 ,  F01D17/02 ,  F01D19/00 ,  F02C7/22 ,  F02C7/266

Abstract: Disclosed is a system including a turbine having a plurality of blades being spaced circumferentially around a shaft. A plurality of dispensers is included. Each dispenser of the plurality of dispensers is positioned facing the open surface of the plurality of blades and directs discharged fluid toward the open surface of the plurality of blades to drive the turbine. A housing encloses the plurality of blades and a portion of each dispenser. A plurality of exhaust pipes is coupled to the housing and extends away from the shaft directing the discharged fluid out of the housing. Each exhaust pipe corresponds to a respective dispenser of the plurality of dispensers. A controller is in communication with the plurality of dispensers and is configured to control the plurality of dispensers.

公开(公告)号：US11873737B1

公开(公告)日：2024-01-16

申请号：US17871582

申请日：2022-07-22

Applicant: Pratt & Whitney Canada Corp.

Inventor： Tahereh Mirmohammadi Ghoojdi

IPC: F01D9/02 ,  F01D5/14 ,  F04D29/68 ,  F01D25/14 ,  F04D27/02 ,  F04D29/18 ,  F01D1/02

CPC classification number: F01D9/02 ,  F01D1/023 ,  F01D5/143 ,  F01D5/145 ,  F01D25/14 ,  F04D27/023 ,  F04D27/0215 ,  F04D29/18 ,  F04D29/68 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2260/60

Abstract: A system is provided for a gas turbine engine. This gas turbine engine system includes a flowpath wall and a deflector. The flowpath wall includes a surface and an opening to a blind aperture. The surface forms a peripheral boundary of an internal engine flowpath. The opening is disposed in the surface. The blind aperture extends vertically into the flowpath wall from the opening. The deflector projects vertically out from the flowpath wall into the internal engine flowpath. The deflector is configured to deflect gas flowing within the internal engine flowpath over the opening.

公开(公告)号：US11846212B2

公开(公告)日：2023-12-19

申请号：US17809347

申请日：2022-06-28

Applicant: AKTIEBOLAGET SKF

Inventor： Christoph Passow ,  Hans-Dieter Zander

IPC: F01D1/02 ,  F01L3/08

CPC classification number: F01L3/08

Abstract: A valve stem seal includes an elastomeric annular seal body including a first seal body section and a second seal body section. The first seal body section includes a first seal lip configured to sealingly abut against the valve stem to delimit an oil space and a second seal lip axially spaced from the first seal lip and configured to sealingly abut against the valve stem to delimit an air space. The first seal body section includes an annular channel in a radially inner wall between the first seal lip and the second seal lip that is spaced from the valve stem when the valve stem seal is mounted on the valve stem, and the surface of the channel includes an undercut configured to facilitate a deformation of the second seal lip toward the first seal lip.

公开(公告)号：US20230399948A1

公开(公告)日：2023-12-14

申请号：US18237606

申请日：2023-08-24

Applicant: MALTA INC.

Inventor： Robert B. LAUGHLIN

IPC: F01D1/02 ,  F01K5/00 ,  F01L1/02

CPC classification number: F01D1/02 ,  F01K5/00 ,  F01L1/02 ,  F25B9/06

Abstract: Efficient energy storage is provided by using a working fluid flowing in a closed cycle including a ganged compressor and turbine, and capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. This system can operate as a heat engine by transferring heat from the hot side to the cold side to mechanically drive the turbine. The system can also operate as a refrigerator by mechanically driving the compressor to transfer heat from the cold side to the hot side. Heat exchange between the working fluid of the system and the heat storage fluids occurs in counter-flow heat exchangers. In a preferred approach, molten salt is the hot side heat storage fluid and water is the cold side heat storage fluid.

公开(公告)号：US11473428B2

公开(公告)日：2022-10-18

申请号：US17418948

申请日：2019-12-20

Applicant: TURBODEN S. p. A.

Inventor： Mario Gaia ,  Roberto Bini

IPC: F01D1/12 ,  F01D1/02 ,  F01D9/06 ,  F01D25/26 ,  F01D9/02 ,  F01D5/14

Abstract: An axial turbine (100) with two supply levels for the expansion phase of a working fluid in a thermodynamic vapor cycle or in an organic Rankine cycle comprising a shaft (2), a plurality of rotor blade arrays (R1-Rn) and corresponding support disks (21, 22), a plurality of stator blade arrays (S1-Sn), further comprising a first inlet opening (5) and a second inlet opening (7′). The second volute (4) is positioned inside the first volute (3), the working fluid of the second supply level reaching upstream of a stator blade (S2,Sn) that is are immediately upstream of one of the rotor blade arrays that extends radially into both of the first and second supply levels.

公开(公告)号：US11441445B2

公开(公告)日：2022-09-13

申请号：US17125784

申请日：2020-12-17

Applicant: TRANF TECHNOLOGY (XIAMEN) CO., LTD.

Inventor： Shuidian Xu ,  Yanfu Li ,  Tao Xu

IPC: F01D1/02 ,  F01D1/34 ,  F01D25/00

Abstract: A pneumatic device includes an outer ring (1) and a core body (3), at least one stage of secondary stroke flow channel (300) being provided between a nozzle (301) and an exhaust port (302) which are located at an outer ring surface of the core body (3); gas enters from an intake passage (31), is ejected in stages through the nozzle (301) and the secondary stroke flow channel (300) of the core body (3), acts on at least two driving recesses (11) in a circumferential direction of the outer ring (1), and generates a pushing force for the driving recesses (11) to push the outer ring (1) to rotate and do work, so as to achieve a power output, and finally, the gas is discharged from an exhaust passage (310) through the exhaust port (302) of the core body (3).

公开(公告)号：US11346289B2

公开(公告)日：2022-05-31

申请号：US16881567

申请日：2020-05-22

Applicant: Raytheon Technologies Corporation

Inventor： Paul R. Adams ,  Frederick M. Schwarz ,  Shankar S. Magge ,  Joseph B. Staubach ,  Wesley K. Lord ,  Gabriel L. Suciu

IPC: F02C9/18 ,  F02C3/04 ,  F02C7/20 ,  F01D1/02 ,  F01D5/02 ,  F01D9/04 ,  F01D25/24 ,  F02C7/36 ,  F02C3/107 ,  F02K3/06 ,  F02C3/113 ,  F02K3/02 ,  F02K3/075 ,  F02K7/06

Abstract: A turbofan engine has an engine case and a gaspath through the engine case. A fan has a circumferential array of fan blades. The engine further has a compressor, a combustor, a gas generating turbine, and a low pressure turbine section. A speed reduction mechanism couples the low pressure turbine section to the fan. A bypass area ratio is greater than about 6.0. The low pressure turbine section airfoil count to bypass area ratio is below about 170.

公开(公告)号：US11131217B2

公开(公告)日：2021-09-28

申请号：US16493143

申请日：2018-03-30

Applicant: Mitsubishi Hitachi Power Systems, Ltd.

Inventor： Ryo Murakami ,  Kazuyuki Matsumoto ,  Yoshihiro Kuwamura ,  Toyoharu Nishikawa ,  Soichiro Tabata

IPC: F01D25/30 ,  F01D1/02

Abstract: A steam turbine exhaust chamber includes a casing and a bearing cone disposed in the casing. The casing has a recess provided along at least a part of a circumference of the casing on a radially outer side of a downstream end of the bearing cone and recessed downstream in an axial direction with respect to the downstream end of the bearing cone.