公开(公告)号：US10018070B2

公开(公告)日：2018-07-10

申请号：US14904841

申请日：2014-09-05

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Hans-Gerd Brummel ,  Dirk Grieshaber ,  Uwe Pfeifer ,  Huub De Bruyn

IPC: F01D17/00 ,  F01D21/00 ,  F01D17/02 ,  F01D15/08 ,  F04D25/04 ,  F04D27/00 ,  G01L3/10 ,  F01D5/02 ,  F03B3/12 ,  F03B15/00 ,  F04D15/00 ,  F04D29/18 ,  F04D29/32

CPC classification number: F01D21/003 ,  F01D5/02 ,  F01D15/08 ,  F01D17/02 ,  F03B3/12 ,  F03B15/00 ,  F04D15/0066 ,  F04D25/045 ,  F04D27/001 ,  F04D27/004 ,  F04D29/181 ,  F04D29/321 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2220/40 ,  F05D2270/335 ,  F05D2270/52 ,  F05D2270/804 ,  G01L3/102

Abstract: A turbo-machine, which can be operated in an optimized driving range is provided. To this end, a method for operating a turbo-machine having at least one turbo-machine stage, which has at least one rotary shaft is disclosed. According to the method, the following method steps are carried out: a) determining a desired efficiency characteristic value ηsoll of the turbomachine stage; b) determining an actual efficiency characteristic value ηist of the turbo-machine-stage; c) determining a comparison efficiency characteristic value of the turbo-machine stage by comparing the actual efficiency characteristic value ηist and the desired efficiency characteristic value ηsoll to one another; and d) changing at least one operating parameter of the turbo-machine stage subject to the comparison efficiency characteristic value ηvgl, wherein in order to determine the actual efficiency characteristic value ηist, a measuring of a torque of the rotary shaft of the turbo-machine-stage is carried out.

公开(公告)号：US10006756B2

公开(公告)日：2018-06-26

申请号：US14781530

申请日：2014-04-02

Applicant: United Technologies Corporation

Inventor： Zbigniew Przeszlo ,  Randall Joyner

IPC: G01B11/00 ,  F01D25/00 ,  G01B11/25 ,  F01D5/14 ,  F01D21/00

CPC classification number: G01B11/002 ,  F01D5/141 ,  F01D21/003 ,  F01D25/00 ,  G01B11/2545

Abstract: A method of optical data acquisition includes shaping a flexible reference system to be at least partially within a limited line of sight volume with respect to a workpiece.

公开(公告)号：US09995167B2

公开(公告)日：2018-06-12

申请号：US15329381

申请日：2015-07-28

Applicant: BAE Systems plc

Inventor： David John Shepard

IPC: F01D21/00 ,  G01S13/00 ,  G01S13/88 ,  G01S7/41 ,  F01D11/14 ,  B64D27/16 ,  B64D45/00

CPC classification number: F01D21/003 ,  B64D27/16 ,  B64D45/00 ,  B64D2045/0085 ,  F01D11/14 ,  F01D17/06 ,  F05D2220/323 ,  F05D2220/36 ,  F05D2260/80 ,  F05D2270/821 ,  G01S7/354 ,  G01S7/412 ,  G01S7/415 ,  G01S13/003 ,  G01S13/505 ,  G01S13/536 ,  G01S13/88 ,  G01S2007/358

Abstract: A blade monitoring system and method for a turbine assembly comprising rotating blades (14), the system comprising at least one sensor (10, 12) for transmitting a signal towards said rotating blades and detecting a time-varying return signal therefrom, and one or more processors (20) configured to calculate the time derivative of said return signal, generate a phase variation signal for said time derivative, determine minima points within said phase variation signal and measure said signal at said minima points so as to identify data representative of respective minimum path lengths, each said minimum path length corresponding to the returned signal as each respective blade passes said sensor, and generate, using said minimum path lengths, a time series of data representing the returned signal from individual blades as they pass the sensor.

公开(公告)号：US09988930B2

公开(公告)日：2018-06-05

申请号：US14924042

申请日：2015-10-27

Applicant: ROLLS-ROYCE PLC

Inventor： David Andre Elysee

IPC: F01D19/00 ,  F01D21/00 ,  F01D21/14 ,  F04D27/00 ,  F04D27/02 ,  F02C9/26

CPC classification number: F01D21/003 ,  F01D19/00 ,  F01D21/14 ,  F02C9/26 ,  F04D27/001 ,  F04D27/0292 ,  F05D2200/12 ,  F05D2220/3216 ,  F05D2260/821 ,  F05D2270/101 ,  F05D2270/3013 ,  F05D2270/44

Abstract: A method of predicting the condition of a compressor with respect to rotating stall is disclosed. The method comprises the steps of: i) comparing the difference between the largest and smallest values of a variable occurring during a time period with a difference threshold, the variable at any given time being dependent on the compressor exit pressure at that time, and ii) predicting either that the compressor is in rotating stall or that the compressor is not in rotating stall in dependence upon the result of the comparison.

公开(公告)号：US09988928B2

公开(公告)日：2018-06-05

申请号：US15156640

申请日：2016-05-17

Applicant: Siemens Energy, Inc.

Inventor： Cristina C. Popescu ,  Michael J. Olejarski ,  Timothy E. Mazzotta

IPC: F01D19/02 ,  F01D25/12 ,  F01D9/02 ,  F01D25/24 ,  F01D21/00

CPC classification number: F01D19/02 ,  F01D9/02 ,  F01D21/003 ,  F01D25/12 ,  F01D25/24 ,  F05D2220/32 ,  F05D2240/307 ,  F05D2260/80 ,  F05D2260/85 ,  F05D2270/44

Abstract: System and methods for predicting a turbomachine engine safe start clearance following a shutdown of the turbomachine engine is provided. The system includes a controller operatively connected to a plurality of temperature detecting means (TDM). The TDMs are arranged at an upper and lower part of the engine casing, and are configured to sense parameters of the engine and to transmit the sensed parameters to the controller. The controller is configured to receive the sensed parameters and to determine, via a control application of the controller, whether components of the engine have sufficient clearance. The controller is further configured to transmit the clearance information, e.g., to a user. Based on the clearance information, the turbomachine engine is restarted.

公开(公告)号：US09976440B2

公开(公告)日：2018-05-22

申请号：US14895071

申请日：2014-05-26

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Bennauer ,  Edwin Gobrecht ,  Martin Hallekamp

IPC: G01M15/14 ,  F01D21/20 ,  F01D21/00

CPC classification number: F01D21/20 ,  F01D21/003 ,  F05D2220/31 ,  F05D2220/32

Abstract: A method for testing an overspeed protection mechanism of a single-shaft combined-cycle plant that includes, during testing, an electrical load is first connected to the generator and the load is disconnected and a trigger threshold value can be achieved at a test moment in time, thereby triggering the overspeed protection mechanism.

公开(公告)号：US20180136082A1

公开(公告)日：2018-05-17

申请号：US15350933

申请日：2016-11-14

Applicant: United Technologies Corporation

Inventor： Alexander I Khibnik ,  Gregory S Hagen

IPC: G01M15/14 ,  F01D21/00

CPC classification number: G01M15/14 ,  F01D21/003 ,  F05D2220/32

Abstract: A method for foreign object debris detection in a gas turbine engine may comprise receiving, by a controller, a plurality of master configuration parameters, receiving, by the controller, a plurality of individual configuration parameters in response to the plurality of master configuration parameters, receiving, by the controller, a first time-series data from a database, pre-processing, by the controller, the first time-series data to generate a second time-series data, implementing, by the controller, an anomaly detector model, the anomaly detector model configured to generate a third time-series data, and implementing, by the controller, a foreign object debris (FOD) damage model, the FOD damage model receiving the third time-series data. The pre-processing the first time-series data, the implementing the anomaly detector model, and the implementing the FOD damage model may be defined by the plurality of individual configuration parameters.

公开(公告)号：US09970316B2

公开(公告)日：2018-05-15

申请号：US14514784

申请日：2014-10-15

Applicant: SNECMA

Inventor： Gabrijel Radeljak ,  Pascal Couhier ,  Benedicte Leleu ,  Frederic Raymond Jean Miroudot ,  Sebastien Hameau ,  Antoine Jean Jausovec

IPC: F01D17/08 ,  F01D21/00 ,  F01D25/28 ,  F01D9/02 ,  F04D27/00 ,  F01D17/02

CPC classification number: F01D21/003 ,  F01D9/02 ,  F01D17/02 ,  F01D17/085 ,  F01D25/285 ,  F04D27/001 ,  F05D2220/323 ,  F05D2230/60 ,  F05D2260/12 ,  F05D2260/83 ,  Y02T50/671 ,  Y10T29/49323

Abstract: The invention relates to an instrumented airfoil for mounting in a flow passage through a turbine, compressor, or module of a turbine engine. An instrumentation member is attached to an airfoil and includes information-obtaining means received in a cutout formed in the airfoil and projecting relative to the leading edge or the trailing edge. According to the invention, the instrumentation member also comprises a holder portion that is united with the information-obtaining means and that is attached to the cutout in such a manner that its surface is in alignment respectively with the suction side wall, the pressure side wall, and the leading edge or the trailing edge of the airfoil, the transitions between these respective surfaces not presenting any setbacks.

公开(公告)号：US20180096582A1

公开(公告)日：2018-04-05

申请号：US15284057

申请日：2016-10-03

Applicant: General Electric Company

Inventor： Subrat Nanda ,  Bruno Paes Leao

IPC: G08B21/18 ,  F01D21/00 ,  F01D25/18

CPC classification number: G08B21/182 ,  F01D21/003 ,  F01D25/18 ,  F01M11/10 ,  F01M2011/1473 ,  F05D2220/32

Abstract: A monitoring system includes an analytical engine system coupled to a sensor of an engine system. The analytical engine system is configured to receive data corresponding to operation of the engine system, to determine a distance metric corresponding to the operating parameters of the engine system, to compare the distance metric for a monitored lubricant temperature to a model threshold, and to generate a lubricant alert signal when the distance metric for the monitored lubricant temperature is greater than the model threshold. The received data includes the monitored lubricant temperature of a bearing and operating parameters of the engine system. The distance metric is based at least in part on the monitored lubricant temperature relative to a lubricant temperature statistical model, which is based at least in part on the operating parameters of the engine system.

公开(公告)号：US09932853B2

公开(公告)日：2018-04-03

申请号：US14697766

申请日：2015-04-28

Applicant: General Electric Company

Inventor： Gregory Lee Hovis ,  Blake Ashton Nickles ,  William F. Ranson ,  Robert William Davidoff

IPC: G01B5/30 ,  F01D21/00 ,  G01L1/22 ,  F01D17/04

CPC classification number: F01D21/003 ,  F01D17/04 ,  F05D2260/80 ,  F05D2260/83 ,  G01L1/22

Abstract: Assemblies and methods for monitoring turbine component deformation are provided. An assembly includes a first strain sensor configurable on the turbine component, the first strain sensor including at least two reference points and having a first dimension. The assembly further includes a second strain sensor configurable on the turbine component, the second strain sensor including at least two reference points and having a first dimension which corresponds to the first dimension of the first strain sensor. An initial value of the first dimension of the second strain sensor is different from an initial value of the first dimension of the first strain sensor. In accordance with another embodiment of the present disclosure, a method for monitoring turbine component deformation is provided.