公开(公告)号：US12203415B2

公开(公告)日：2025-01-21

申请号：US18337678

申请日：2023-06-20

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： John Sgouromitis ,  Kashif Mohammed ,  Sylvain Lamarre

IPC: F02C7/18 ,  F01D21/14 ,  F02K3/115

Abstract: An aircraft engine comprises an exhaust duct receiving an engine gas flow at a first pressure during an operating condition and at a second, lower pressure at shutdown. A heat exchanger duct connected to the exhaust duct has a heat exchanger disposed therein. A cover in the heat exchanger duct includes a closure movable between open and closed positions to fluidly connect or disconnect the heat exchanger duct to the exhaust duct. A biasing member disposed in the exhaust duct, exposed to the gas flow, and operatively connected to the closure biases the closure toward the closed position with a biasing force. First and second forces opposing the biasing force are generated on the biasing member by the gas flow at the first and second pressures, the first being greater than the second. The biasing force is greater than the second force and less than the first force.

公开(公告)号：US12135549B2

公开(公告)日：2024-11-05

申请号：US17669331

申请日：2022-02-10

Applicant: General Electric Company

Inventor： James R. Noel ,  Lauren M. Kelly ,  Jacques Paul

IPC: G05D1/00 ,  B64D43/00 ,  F01D21/14 ,  F02C7/05 ,  G05D1/80

Abstract: Provided is a tangible computer-readable, non-transitory storage medium storing instructions that, when executed by a hardware processor of an aircraft, causes the hardware processor to execute a method. The method includes receiving, from an engine particulate sensor of the aircraft, a measure of particulate matter in a gas path of the engine during flight of the aircraft. The method also includes presenting to a pilot of the aircraft, a visualization of the particulate matter measure, wherein the visualization supports a navigation of the aircraft responsive to the presence of the particulate matter.

公开(公告)号：US11726859B2

公开(公告)日：2023-08-15

申请号：US16988087

申请日：2020-08-07

Applicant: Raytheon Technologies Corporation

Inventor： Paul A. Adamski

IPC: G06F11/07 ,  G06N20/00 ,  G05B19/042 ,  F02C7/32 ,  F01D21/14 ,  G07C3/00

CPC classification number: G06F11/0793 ,  F01D21/14 ,  F02C7/32 ,  G05B19/042 ,  G06F11/079 ,  G06F11/0736 ,  G06F11/0751 ,  G06F11/0778 ,  G06N20/00 ,  G05B2219/24184 ,  G07C3/00

Abstract: A redundant control system includes a plurality of channels each including a processing system configured to execute a control application for a controlled system. The redundant control system also includes a switchover artificial intelligence control operable to evaluate a state of the channels of the redundant control system, monitor a plurality of input/output data and communication data of the channels, and apply a fault model to determine one or more component faults and system faults of the channels based on the state, the input/output data, and the communication data. The switchover artificial intelligence control is further operable to command a switchover of a control function from one of the channels having a lower health status to one of the channels having a higher health status based on the component faults and system faults of the channels.

公开(公告)号：US11725534B2

公开(公告)日：2023-08-15

申请号：US17691040

申请日：2022-03-09

Applicant: Shanghai Power Equipment Research Institute Co., Ltd

Inventor： Jinyuan Shi ,  Xuefei Fan ,  Yuesheng Xie ,  Jun Jiang ,  Luyi Jiang ,  Zhijie Zhu ,  Chengyi Zhang ,  Lin Zhang ,  Xinxuan Kong ,  Wangren Xu ,  Zifang Zhu ,  Yuxuan Wang

IPC: F01D21/00 ,  G01M13/045 ,  G01N25/00 ,  G21D3/08 ,  G01M13/028 ,  F01K3/18 ,  F01D21/12 ,  F01D19/02 ,  F01D21/14 ,  F01K13/02

CPC classification number: F01D21/003 ,  F01D19/02 ,  F01D21/12 ,  F01D21/14 ,  F01K3/181 ,  F01K13/02 ,  G01M13/028 ,  G01M13/045 ,  G01N25/00 ,  G21D3/08 ,  F05D2220/30

Abstract: The present disclosure provides a method of multi-objective and multi-dimensional online joint monitoring for a nuclear turbine. The method includes: obtaining first temperature monitoring data of the nuclear turbine by performing online thermal monitoring on a rotor, a valve cage and a cylinder of the nuclear turbine under quick starting-up; obtaining second temperature monitoring data of tightness of a flange association plane of the cylinder of the nuclear turbine by performing online thermal monitoring on the tightness of the flange association plane; obtaining operation monitoring data of a shafting vibration of a rotor and bearing system of the nuclear turbine by performing online safety monitoring on the shafting vibration of the rotor and bearing system; and optimizing operation and maintenance control of the nuclear turbine according to at least one type of monitoring data among the first temperature monitoring data, the second temperature monitoring data and the operation monitoring data.

公开(公告)号：US11692496B2

公开(公告)日：2023-07-04

申请号：US17367413

申请日：2021-07-04

Applicant: ZHEJIANG UNIVERSITY

Inventor： Zhengguo Xu ,  Yong Xiong ,  Zijun Que ,  Peng Cheng ,  Jiming Chen

IPC: F01D21/12 ,  F01D21/14 ,  F02D35/02 ,  F01D25/16

CPC classification number: F02D35/02 ,  F01D21/12 ,  F01D21/14 ,  F01D25/16 ,  F05D2260/80 ,  F05D2260/81 ,  F05D2270/3032 ,  F05D2270/334

Abstract: The present disclosure discloses a method for capturing a trip sign of a turbine due to a high bearing temperature based on correlation and a device therefor. By combining a temperature of a target bearing and related operating parameters thereof, this method can capture possible abnormal trip online. According to the present disclosure, it is not necessary to add additional detection equipment, and it does not need to establish a complex physical model for turbine bearings, and only the historical data of the operating parameters of the temperature of the target bearing and generator set operating parameters related to the temperature of the target bearing are required to complete the establishment of the model for capturing abnormal sign before the trip, which is convenient for popularization and application.

公开(公告)号：US11674412B2

公开(公告)日：2023-06-13

申请号：US17713795

申请日：2022-04-05

Applicant: Baker Hughes Holdings LLC

Inventor： Brian F. Howard ,  Lysle R. Turnbeaugh ,  David R. O'Connor

IPC: F01D21/00 ,  F01D21/14

CPC classification number: F01D21/003 ,  F01D21/14 ,  F05D2270/02 ,  F05D2270/304 ,  F05D2270/334 ,  F05D2270/708

Abstract: Systems and methods for turbomachine control based upon magnetostrictive sensor measurements are provided. A turbomachine (e.g., a compressor) can be instrumented with at a sensor configured to measure an operating parameter, and a magnetostrictive sensor configured to acquire a torsional measurement (e.g., torsional vibration and/or torque) of a turbomachine shaft. An analyzer can receive the operating parameter measurement and torsional measurement and determine an updated operating parameter limit and/or an updated exclusion zone based upon the torsional measurement for control of the operating parameter.

公开(公告)号：US20230029650A1

公开(公告)日：2023-02-02

申请号：US17387910

申请日：2021-07-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： KAMEL ABDELKADER TAYEBI ,  MURALI KRISHNA KALAGA ,  ABDURRAHMAN ABDALLAH KHALIDI ,  MARUTHI MANOHAR JUPUDI ,  SUMITH UNNIYATTIL ,  REBECCA EVELYN HEFNER

IPC: F01D21/00 ,  F01D21/14 ,  F02C7/05 ,  G01M15/14

Abstract: A control system for turbine systems configured to utilize an intelligent model of particulate presence and accumulation within turbine systems to address engine maintenance, erosion, corrosion, and parts failure mitigation is disclosed. The control system may build an intelligent model of fluid flow based on the data value measured by at least one sensor and based on a database of known data values to provide an estimation of amount of ingress of air intake particles into the turbine system, fouling within the turbine system, erosion of at least a portion of the turbine system, and performance degradation rate of the turbine system.

公开(公告)号：US11499446B2

公开(公告)日：2022-11-15

申请号：US16861582

申请日：2020-04-29

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Graeme Daly

IPC: F01D21/14 ,  F02C9/46 ,  G01M15/14 ,  F01D21/04 ,  F01D21/02 ,  F01D17/06

Abstract: Methods and systems for detecting a shaft event of a gas turbine engine are described. The method comprises monitoring at least one engine parameter and comparing the at least one engine parameter to a schedule for the at least one parameter defining a first threshold and a second threshold greater than the first threshold; applying a limit to the at least one engine parameter when the at least one engine parameter is inside a parameter limiting region between the first threshold and the second threshold, the first threshold separating the parameter limiting region from a normal operating region, the second threshold separating the parameter limiting region from a hazardous operating region; and detecting the shaft event when the at least one engine parameter crosses the second threshold and issuing a signal in response to the detecting.

公开(公告)号：US11326469B2

公开(公告)日：2022-05-10

申请号：US16887294

申请日：2020-05-29

Applicant: Rolls-Royce Corporation

Inventor： Li Li ,  Jun Shi

IPC: F01D21/00 ,  F01D21/14 ,  F01D25/00 ,  F01D5/28 ,  G01N21/64 ,  F01D11/12 ,  G01B11/06

Abstract: An article includes a substrate defining a surface, a bond coat on the surface of the substrate, a coating layer on the bond coat, and a wear indicator. The coating layer includes at least one of an environmental barrier coating (EBC) or an abradable coating. The wear indicator disposed in a first region of the coating layer and includes at least one chromophore dopant and a material of the EBC or the abradable coating. The wear indicator is configured to indicate wear of the coating layer.

公开(公告)号：US11255269B2

公开(公告)日：2022-02-22

申请号：US16740708

申请日：2020-01-13

Applicant: ROLLS-ROYCE plc

Inventor： Michael R. Smith

IPC: F02C7/232 ,  F16K35/02 ,  F16K3/26 ,  F01D21/14 ,  F02C9/46 ,  F16K21/16 ,  F02C9/26

Abstract: The disclosure relates to a valve for a fuel system having a body with at least one inlet and one outlet, the inlet fluidly connected to a pressurised fuel source in use. A shuttle is mounted within the body, the shuttle having a cavity of fixed volume and movable between a first position where fluid is permitted to flow through the inlet and is prevented from flowing through the outlet and a second position where fluid is prevented from flowing through the inlet and is permitted to flow through the outlet. A piston is configured to engage the fluid within the shuttle cavity to move the shuttle between the first and second position. A biasing mechanism biases the shuttle towards the first position and where the shuttle moves towards the second position when the fluid within the shuttle reaches a critical pressure.