Gas Turbine, Compressor Patents (Class 701/100)
  • Patent number: 10309342
    Abstract: A system for controlling actuators within a gas turbine engine according to an exemplary aspect of the present disclosure includes an electronic engine controller, a plurality of actuators, and a central control unit. The central control unit includes an actuator control unit electrically coupled to the electronic engine controller and a plurality of actuator control modules. Each of the actuator control modules is electrically coupled to each of the plurality of actuators. A method is also disclosed.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: June 4, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Carl F. Mueller, Leo J. Veilleux, Jr.
  • Patent number: 10294811
    Abstract: A method of calibrating a rotor tip clearance arrangement that includes measuring a rotor parameter indicative of rotor efficiency and altering a position of a tip clearance control actuator by an increment to reduce the rotor tip clearance. The method further includes iterating the measuring and altering, and calculating a rate of change of the rotor parameter between pairs of iterations. The method further includes identifying a knee point where the rate of change of the rotor parameter changes and record the corresponding tip clearance control actuator position as a calibrated position. Also included is a rotor tip clearance arrangement calibrated by the method and a method of monitoring deterioration of a rotor tip clearance arrangement.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: May 21, 2019
    Assignee: ROLLS-ROYCE plc
    Inventor: Daniel L Morrill
  • Patent number: 10287988
    Abstract: A method for controlling and enhancing a startup operation for a combined cycle power block (block) having at least one gas turbine and at least one steam turbine, wherein operating parameters define performance and operational characteristics for the startup operation, the method comprising: receiving measured operating parameters from a plurality of reference blocks and, for each of the plurality of reference blocks, a plurality of types of the startup operations; given the measured operating parameters, developing one or more reference transfer functions between two of the measured operating parameters; receiving measured operating parameters from the startup operation of a target block; given the measured operating parameters from the target block, developing one or more transfer functions for the target block between two of the operating parameters; selecting one of the reference transfer functions; and normalizing the transfer function of the target block per the selected reference transfer function.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: May 14, 2019
    Assignee: General Electric Company
    Inventors: Mahesh Kumar Asati, Peter John Eisenzopf
  • Patent number: 10280844
    Abstract: Power systems are disclosed. The power system may include a turbine component of a gas turbine system, and a computing device(s) in communication with the power plant. The computing device(s) may be configured to control the power plant system by performing various processes including defining a turbine inlet temperature range for a combustion gas flowing through the turbine component of the gas turbine system. The turbine inlet temperature range may be based on a desired operational load for the power plant system. The processes performed by the computing device(s) may also include determining fuel and maintenance cost ranges based on the turbine inlet temperature range, calculating a desired turbine inlet temperature range for the combustion gas based on the determined fuel and maintenance cost range, and adjusting an actual turbine inlet temperature of the combustion gas to be within the calculated, desired turbine inlet temperature range.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 7, 2019
    Assignee: General Electric Company
    Inventors: Phillip Waniczek, Dirk Therkorn, Alexey Mozharov, Dominic Graf
  • Patent number: 10282925
    Abstract: A system and algorithm-based method of determining engine health and assuring available propulsion power based on historical data reflecting the individual engine's unique performance “fingerprint.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 7, 2019
    Assignee: Bell Helicopter Textron Inc.
    Inventor: Alan H. Steinert
  • Patent number: 10267265
    Abstract: An obtaining step for obtaining a measurement of the monitored parameter as measured by a sensor and corresponding to an operating point of the engine, the operating point being defined by at least one regulation parameter of the engine; an estimation step for estimating a value of the monitored parameter for this operating point on the basis of a regulated value or a filtered setpoint value of the at least one regulation parameter of the engine defining the operating point; a comparison step for comparing an error between the measurement of the monitored parameter and its estimate relative to at least one threshold determined on the basis of an uncertainty on the error evaluated for the operating point; and a notification step for sending a notification in the event of the at least one threshold being crossed.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: April 23, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Antoine Romet, Serge Le Gonidec, Dimitri Malikov, Jonathan Gazagnes
  • Patent number: 10253691
    Abstract: A device for protecting aircraft equipment against contact by a foreign object including an interference arrangement disposed in an air inlet upstream from the aircraft equipment where the interference arrangement is configured to physically obstruct passage of the foreign object within the air inlet.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: April 9, 2019
    Assignee: C SERIES AIRCRAFT LIMITED PARTNERSHIP
    Inventors: Sigit Afrianto, Jean Brousseau
  • Patent number: 10250102
    Abstract: A reversible electrical machine (1) comprising: a first electrical device (10) having a first stator (11) and a first rotor (12); a second electrical device (20) including a second rotor (22) and a second stator (21) together with an outlet shaft (50) and first disengageable coupling means (30) enabling said first and second rotors (12, 22) to be associated and dissociated in rotation. Said reversible electrical machine (1) also includes second disengageable coupling means (40) that are disengageable under a predetermined force and that mechanically connect said second rotor (22) to said outlet shaft (50). Said first electrical device (10) is a motor for transmitting high mechanical power to said outlet shaft (50), while said second electrical device (20) is a motor-generator for operating in motor mode to transmit additional mechanical power to said outlet shaft (50), and in generator mode for receiving mechanical power from said outlet shaft (50).
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 2, 2019
    Assignee: AIRBUS HELICOPTERS
    Inventor: Damien Mariotto
  • Patent number: 10223846
    Abstract: Systems and methods for modeling engine health are provided. One example aspect of the present disclosure is directed to a method for modeling engine health. The method includes receiving, by one or more processors, engine acceptance test procedure (ATP) data. The method includes receiving, by the one or more processors, flight test data. The method includes generating, by the one or more processors, one or more coefficients for a power assistance check (PAC) based on the engine ATP data and the received flight test data using a machine learning technique. The method includes transmitting, by the one or more processors, the one or more coefficients for the PAC to a vehicle, wherein the vehicle uses the one or more coefficients in the PAC to predict engine health.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: March 5, 2019
    Assignee: General Electric Company
    Inventors: Ayin Mokri Vala, Scott Victor Hannula
  • Patent number: 10199926
    Abstract: A management or control of a power router is more appropriately performed when a power network system in which power cells are asynchronously connected with each other. A plurality of power conversion legs bi-directionally convert power, one ends thereof are connected with a direct current bus and the other ends thereof are connected with an external connection partner as an external connection terminal. A control unit controls operations of the plurality of power conversion legs. The control unit receives a control instruction including a designation of a stopping target leg. The control unit performs an adequacy determination of whether the stopping target leg can be stopped. The control unit stops the stopping target leg when the stopping target leg can be stopped.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 5, 2019
    Assignee: NEC Corporation
    Inventor: Noriaki Kobayashi
  • Patent number: 10180107
    Abstract: A non-transitory computer readable storage medium storing one or more processor-executable instructions wherein the one or more instructions when executed by a processor of a controller, cause acts to be performed is provided. The acts to be performed include controlling a fuel split to a combustor of a gas turbine utilizing automatic tuning and switching control of the fuel split to the combustor of the gas turbine to utilizing an adjusted fixed fuel split schedule instead of automatic tuning. The adjusted fixed fuel split schedule includes a fixed fuel split schedule adjusted via a biasing value, and the biasing value is based on both the fixed fuel split schedule and an automatic tuning based fuel split.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 15, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Steven William Backman, Trevor Valder Jones, Daniel Joseph Flavin, Scott Michael Schaberg, Kelly Marie Kurylo
  • Patent number: 10174679
    Abstract: A method of controlling a startup sequence of a gas turbine. A turbine of the gas turbine may include a rotor that has a rotor velocity and a rotor acceleration during the startup sequence. The method may include the steps of: determining an originally scheduled startup duration for the gas turbine; measuring an intermediate rotor velocity at an intermediate time within the startup sequence; determining a recalculated remaining startup duration that is a duration calculated as necessary to achieve the final rotor velocity given the intermediate rotor velocity; determining a remaining portion of the originally scheduled startup duration based on the intermediate time; calculating a time multiplier based on a comparison of the recalculated remaining startup duration to the remaining portion of the originally scheduled startup duration; and scaling the rotor acceleration per the time multiplier for a duration until the final rotor velocity is achieved by the turbine.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: January 8, 2019
    Assignee: General Electric Company
    Inventors: Mathew Doyle Angel, Michael John Carney
  • Patent number: 10176032
    Abstract: Disclosed herein are systems, devices, and methods related to assets and asset operating conditions. In particular, examples involve defining and executing predictive models for outputting health metrics that estimate the operating health of an asset or a part thereof, analyzing health metrics to determine variables that are associated with high health metrics, and modifying the handling of abnormal-condition indicators in accordance with a prediction of a likely response to such abnormal-condition indicators, among other examples.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: January 8, 2019
    Assignee: Uptake Technologies, Inc.
    Inventors: Michael Horrell, John Ciasulli, Sheng Zhong, Adam McElhinney, Brian Silva
  • Patent number: 10161785
    Abstract: The arrangement for monitoring rubbing between a rotary part and a stationary part in a rotating turbomachine comprises at least one mechanical oscillations detector for measuring mechanical oscillations at at least one point of the turbomachine, at least one particles detector for measuring debris passing in at least one section of a flow path of the turbomachine, and an electronic monitoring unit electrically or electromagnetically connected to the oscillations detector and the particles detector, and arranged to acquire and process signals generated by the oscillations detector and the particles detector. The electronic monitoring unit uses the oscillations measurement primarily for estimating presence of rubbing and the debris measurement primarily for estimating severity of rubbing.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: December 25, 2018
    Assignee: NUOVO PIGNONE SRL
    Inventors: Antonello Pepe, Marzia Sepe, Dario Nurzad, Riccardo Garbin
  • Patent number: 10106269
    Abstract: Systems and methods for controlling a throttle can use an auto throttle system. The auto throttle system includes an auto throttle monitor and a disable processor. The auto throttle monitor is configured to monitor throttle levers for an uncommanded throttle movement and disengage auto throttle control in response to the uncommanded throttle movement. The disable processor is configured to receive an indication of a loss of engine power from a first engine and prevent the auto throttle monitor from disengaging the auto throttle control for a throttle lever of the throttle levers associated with a second engine, the second engine being different than the first engine.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 23, 2018
    Assignee: ROCKWELL COLLINS, INC.
    Inventors: DeKevin M. Thornton, Tapuwa Tavaziva
  • Patent number: 10107204
    Abstract: Systems and methods for controlling a fluid based engineering system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states of the model processor, the dynamic states input to an open loop model based on the model operating mode. The model processor may further include an estimate state module for determining an estimated state of the model based on a prior state model output and the current state model of the open loop model, the estimate state module determining estimator gain associated with the current state model and applying the estimator gain to determine the estimated state of the model.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 23, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Boris Karpman, Richard P. Meisner
  • Patent number: 10099796
    Abstract: In one aspect, a method for dynamically controlling the operation of an aircraft having a first gas turbine engine and a second gas turbine engine may generally include receiving, by a first engine controller and a second engine controller, one or more operator commands deriving from an operator manipulated input device. The method may also include controlling the operation of the first gas turbine engine via the first engine controller, and the second gas turbine engine via the second engine controller. In addition, the method may include detecting a fault condition associated with the first engine controller, and subsequently switching control of the first gas turbine engine from the first engine controller to the second engine controller. The method may further include dynamically controlling the operation of the first gas turbine engine with the second engine controller.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 16, 2018
    Assignee: General Electric Company
    Inventors: Jeffrey Michael Spack, Albion R. Fletcher, Jr., Drew G. Rindner
  • Patent number: 10100679
    Abstract: A control system for a power plant includes a sensor that measures a rotor surface temperature of a steam turbine rotor, where the temperature is a function of exhaust gasses from a heat source for heating steam to a target temperature. The control system includes a controller coupled to the sensor and configured to compute the target temperature using an inverse process model for steam turbine rotor stress dynamics, and based on a reference steam turbine rotor stress and a feedback steam turbine rotor stress, compute a measured steam turbine rotor stress based on a measured surface temperature of the steam turbine rotor, compute an estimated steam turbine rotor stress using a process model for the steam turbine rotor stress dynamics, and based on the target temperature, and compute the feedback steam turbine rotor stress based on the measured steam turbine rotor stress and the estimated steam turbine rotor stress.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: October 16, 2018
    Assignee: General Electric Company
    Inventors: Mert Geveci, John Lawrence Meyer
  • Patent number: 10094292
    Abstract: A method for controlling fuel flow to a gas turbine engine during starting includes monitoring acceleration of the gas turbine engine to determine actual acceleration value, and calculating a fuel flow rate for a setpoint acceleration using the actual acceleration value as a factor. The method further includes commanding the calculated fuel flow for the setpoint acceleration to the gas turbine engine.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: October 9, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Walter Ernest Ainslie, Andre M. Ajami, Mujtaba T. Saifuddin
  • Patent number: 10065744
    Abstract: Systems and methods for modelling an engine in a vehicle are provided. A method can include determining a first solver for modelling the engine. The first solver can include a first routine configured for determining one or more parameters of the engine. The method can further include obtaining a first set of inputs associated with the first solver. The first set of inputs can include one or more inputs obtained from the first solver and one or more previous engine states. The method can further include modelling the engine based at least in part on the first set of inputs to generate a first set of outputs. The first set of outputs can include one or more parameters of the engine and one or more engine states. The method can further include providing the one or more parameters to the solver.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 4, 2018
    Assignee: General Electric Company
    Inventors: Jacques Paul, Alejandro Aparicio, George Luo, Tarik Yardibi
  • Patent number: 10067035
    Abstract: A gas turbine system has a gas turbine engine, control unit, a data acquisition system including a thermodynamic model unit and a test sequence unit, sensor device coupled to the engine for measuring performance parameter of the engine, and comparative unit. The thermodynamic model unit generates computed performance parameter based on mechanical and thermodynamic models of the engine. The test sequence unit generates test sequence data including set point operating data and time schedule data with which a test cycle of the engine is runnable. The data acquisition system generates test control data based on the test sequence data, and is coupled to the control unit for providing test control data thereto to control the engine. The comparative unit is coupled to the data acquisition system such that the measured performance parameter measured by the sensor device is comparable with the computed performance parameter.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: September 4, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Samuel Bowler, Michael Smith, Andrew Yarwood
  • Patent number: 10047678
    Abstract: A method of stopping an engine of a rotorcraft in overspeed, the engine comprising a gas generator and a power assembly. When the engine is in operation, the engine is automatically stopped when the following three conditions are satisfied simultaneously: a torque (Tq) measured on the power assembly is below a predetermined torque threshold (Tq1); and a speed of rotation referred to as a “first speed of rotation (N1)” of the gas generator is above a threshold referred to as a “first speed threshold (S1)”; and a speed of rotation referred to as a “second speed of rotation (N2)” of the power assembly is above a threshold referred to as a “second speed threshold (S2)”.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: August 14, 2018
    Assignee: Airbus Helicopters
    Inventor: Bernard Certain
  • Patent number: 10012566
    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.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 3, 2018
    Assignee: United Technologies Corporation
    Inventors: Alexander I Khibnik, Gregory S Hagen
  • Patent number: 9995239
    Abstract: An engine of the invention includes an engine main unit having cylinders, an intake line, an exhaust line, a supercharger, a turbo sensor detecting a rotational speed of the supercharger, a control device controlling, based on signal from the turbo sensor, an operating state of the engine main unit that has a correlation with the rotational speed of the supercharger, and a crank angle sensor detecting a rotation angle of a crankshaft. The control device recognizes timings at which the cylinders are in a top dead center state based on detection signals of the crank angle sensor and, also, makes a disconnection judgment for the turbo sensor at non-top dead center timings that are within one combustion cycle of the engine main unit and at which none of the plurality of cylinders are in a top dead center state.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: June 12, 2018
    Assignees: YANMAR CO. , LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Takahashi, Toshiro Itatsu
  • Patent number: 9976907
    Abstract: An aircraft-mounted external fire detection system includes optical circuitry and processing circuitry. The optical circuitry is mounted on an aircraft aft of an engine nacelle of the aircraft, and is configured to optically monitor an exterior of the engine nacelle for a hydrocarbon fire by detecting radiation outside of the visible light spectrum. The processing circuitry is communicatively coupled to the optical circuitry and is configured to use the optical circuitry to determine that the fire has been continuously present for more than a threshold duration, and in response, transmit a warning to an operator terminal of the aircraft.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: May 22, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Robert Steven Wright, Van Jerold Winters
  • Patent number: 9972143
    Abstract: A system and method are provided that are directed to the technological problem of performing real-time trend analysis to provide real-time cockpit level event predictions. The provided systems and methods further provide real-time corrective action suggestions associated with the real-time trend analysis.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: May 15, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Tanushree Maiti Garai, Satish Narayan Hegde, Dhanapal Thirumalaisamy
  • Patent number: 9946232
    Abstract: A set of load data for a selected point in time and resulting from the machine operation is received. The load data is provided from a first database comprising predefined machine conditions associated to different sets of load data for the machine. One of the predefined machine conditions that is most representative of the received set of load data is selected.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 17, 2018
    Assignee: GKN Aerospace Sweden AB
    Inventors: Mikael Nilsson, Daniel Norder
  • Patent number: 9920715
    Abstract: Various methods and systems are provided for adjusting a flow of exhaust gas in an exhaust gas recirculation system. In one embodiment, a method for an engine comprises controlling a flow of exhaust gas through an exhaust gas recirculation system of an engine system based on a choke level of a turbocharger. For example, the flow of exhaust gas in the exhaust gas recirculation system may be reduced to within a threshold of a choke level of the turbocharger, in response to an ambient condition.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 20, 2018
    Assignee: General Electric Company
    Inventors: James Robert Mischler, Luke Henry, Greg Thomas Polkus
  • Patent number: 9903278
    Abstract: An apparatus for estimating operating parameter of a gas-turbine aeroengine is configured to calculate a rotational speed of the low-pressure turbine (N1) by retrieving preset first characteristics by at least a rotational speed of the high-pressure turbine (N2), an engine inlet temperature and a first amount of bled air, to calculate a compensating value (?N1) of the rotational speed of the low-pressure turbine by retrieving preset second characteristics by at least a second amount of bled air, and to calculate the rotational speed of the low-pressure turbine (N1) finally based on the calculated rotational speed of the low-pressure turbine (N1) and the compensating value (?N1) thereof.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: February 27, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Taizo Okada
  • Patent number: 9897013
    Abstract: A system is provided. The system includes a gas turbine, the gas turbine having an operating space during operation and a current operating point during operation, a computing device communicatively coupled to the gas turbine and configured to calculate, based on the current operating point of the gas turbine, the operating space for the gas turbine by solving for a plurality of corner points that define the operating space, and display, to a user, a graph that includes the calculated operating space and the current operating point.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: February 20, 2018
    Assignee: General Electric Company
    Inventor: Benjamin David Laskowski
  • Patent number: 9863268
    Abstract: A dynamic system estimation device and method, whereby estimation for more performance parameters than there are sensors can be performed, the estimation taking temporal changes into account. The dynamic system estimation device includes: a prescribed number of sensors that detect prescribed observation values from a gas turbine engine; and a Kalman filter that uses a dynamic model of the gas turbine engine and estimates the state of the gas turbine engine, on the basis of the observation values detected by the sensors. The gas turbine engine includes an element having changes in temporal performance recorded by performance parameters. The Kalman filter enables more than the prescribed number of performance parameters to be estimated, as a result of introducing a first-order lag element in place of the element.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 9, 2018
    Assignee: IHI Corporation
    Inventors: Hiroyuki Furukawa, Daiki Kakiuchi, Mai Kimura
  • Patent number: 9852240
    Abstract: Systems and methods for gas turbine operational impact modeling using statistical and physics-based methodologies are disclosed.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: December 26, 2017
    Assignee: General Electric Company
    Inventors: Seema Chopra, David Purnell, Shridhar Raghuvir Powar, John Robert Korsedal, Christopher Farral, Jenfu Yau
  • Patent number: 9846173
    Abstract: A speed sensor including an output data signal generator configured to generate an output data signal representing a state of a sensed element; and a multiplexer configured to multiplex the output data signal and an internal diagnostic data signal representing diagnostic data of the speed sensor into a combined data signal.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: December 19, 2017
    Assignee: Infineon Technologies AG
    Inventor: Klaus Grambichler
  • Patent number: 9835048
    Abstract: A turbine engine fleet wash management system is configured to electronically communicate with a turbine engine system, a fleet management service, and a cleaning management service. The turbine engine fleet wash system causes a cleaning of a turbine engine to occur based on information received from the turbine engine system and other sources. The turbine engine fleet wash management system includes a cleaning schedule optimizer that generates a cleaning schedule based on engine health monitoring data, engine operation data, maintenance schedules for the turbine engine, and cleaning regimen data. The cleaning schedule optimizer estimates turbine engine performance improvements based on the selected cleaning regimen, and calculating an estimate of carbon credits earned based on the predicted improvement in turbine engine performance.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 5, 2017
    Assignee: Rolls-Royce Corporation
    Inventors: George F. Griffiths, Prahlad R. D. Heggere, Jeffrey A. Green
  • Patent number: 9776647
    Abstract: A method for inputting ETCS data into a rail vehicle inputs the ETCS data by using an apparatus which is separate from the rail vehicle. The apparatus can, for example, be constructed to be mobile and the ETCS data can be input flexibly at different locations and be transmitted to the rail vehicle, for example, by SMS. The advantage of this approach is that delays resulting from the inputting of ETCS data can be reduced and thus the rail vehicle reaches a “Start of Mission” state more quickly. An apparatus for inputting ETCS data into a rail vehicle and a rail vehicle with an ETCS device are also provided.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 3, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Markus Dymek, Carsten Hasselkuss, Udo Rabeneck, Christian Wilke
  • Patent number: 9745900
    Abstract: Methods of determining a desired sensor probe location in a closed loop emissions control (CLEC) system of a gas turbine engine are provided. One method includes determining, at different locations, a plurality of temperature contour profiles for exhaust flowing through an exhaust duct, selecting an emissions component entrained in the exhaust to be measured, and determining a desired sensor probe installation location based on the emissions component to be measured and based on the plurality of temperature contour profiles.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: August 29, 2017
    Assignee: General Electric Company
    Inventors: Siddharth Aphale, Scott Alan Kopcho, Daniel Robert Tegel, Aarron Dell Johansen
  • Patent number: 9683454
    Abstract: A method for monitoring non-rotating turbomachine parts includes the step of measuring displacement of at least one turbomachine part. A monitoring step monitors displacement of the turbomachine part with a non-contact type sensor. A collecting step collects data regarding the displacement of the turbomachine part. An analyzing step analyzes the data to determine if the displacement exceeds a predetermined threshold range. The non-contact type sensor may be attached to the turbomachine by a rod formed of a material having a low coefficient of thermal expansion, and a target may be attached to a stationary structure in close proximity to the non-contact type sensor.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 20, 2017
    Assignee: General Electric Company
    Inventors: David Ernest Welch, Kristopher John Frutschy, Edward Leo Kudlacik
  • Patent number: 9683498
    Abstract: A method for operating an internal combustion engine includes monitoring engine parameters using an electronic controller, determining a surge speed limit for the engine based on a compressor map, determining an offset engine speed based on a margin between the surge speed limit and an engine speed, determining a minimum engine speed based on the margin, applying the offset engine speed to an engine speed signal to provide an adjusted engine speed, and applying the adjusted engine speed to a desired engine speed when a speed of the engine approaches the surge speed limit.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: June 20, 2017
    Assignee: Caterpillar Inc.
    Inventors: Urvish Joshi, Travis Barnes, Eric W. Cler, Anand KrishnamurthyGopalan, Eric A. Hutchison, Kirti Tamhane, Andrew N. Schifferer, Tyler Bowman, Kevin Sergott, Matthew Mowers, Daniel R. Puckett
  • Patent number: 9611786
    Abstract: An engine system for starting a gas turbine engine includes a starter coupled to the gas turbine engine and configured to provide torque to the gas turbine engine; and a controller coupled to the starter and configured to evaluate an engine system parameter and to select from a plurality of start modes for starting the gas turbine engine based on the engine system parameter.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: April 4, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Ernest Kurschat, Yufei Xiong, Ron Haugland, Craig E. Thompson
  • Patent number: 9606533
    Abstract: A method for performing computerized automated root cause analysis for a complex product, such as a turbine, and computer-readable medium encoded with programming instructions for performing such a root cause analysis are provided. The method may include: monitoring the product; detecting a product misbehavior; forming a misbehavior pattern with timeslots of normal operation and timeslots of misbehavior operation; comparing timeslots of the misbehavior pattern to corresponding timeslots of channels of information in at least one database relating to the product; measuring how close the misbehavior pattern numerically fits to the information; and automatically identifying a best numerical fit.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: March 28, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Henrik Pedersen
  • Patent number: 9581124
    Abstract: The present invention relates to a method for detecting performance of an APU starter, comprising: obtaining APU-related messages at multiple time points within one time period; obtaining running parameters of the APU starter according to the messages, the running parameters comprise starting time STA; calculating average value AVG and deviation index ? of the starting time within said time period; determining whether performance of the APU starter is in a stable phase, decline phase or failure phase according to the deviation index ?.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: February 28, 2017
    Assignee: Air China Limited
    Inventors: Zhuping Gu, Lei Huang, Huifeng Ding, Jiaju Wu, Fengliang Zheng, Lei Zhong, Guogang Shi, Lei Chen
  • Patent number: 9542855
    Abstract: A method of driving a main rotor of a rotorcraft in rotation while implementing an in-flight simulation mode that simulates failure of one of the engines of the rotorcraft. In simulation mode, and when a current speed of rotation (NR) of the main rotor is detected as being lower than a predetermined threshold speed of rotation (S), the simulation mode is kept active and a regulation command is generated in order to perform a controlled operation (A) of gradually increasing the power delivered by the engines by authorizing the limit imposed by a setpoint (OEI/2) for regulating operation of the engine in simulation mode to be exceeded. Said gradually increasing power is interrupted by the pilot staying under training and operating a collective pitch maneuver of the blade of the main rotor providing a rotation of main rotor at the predetermined threshold speed in rotation.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: January 10, 2017
    Assignee: AIRBUS HELICOPTERS
    Inventors: Guillaume Dumur, Regis Rossotto, Hilario Vieira
  • Patent number: 9500138
    Abstract: A load power sharing control system for a twin-engine rotorcraft having a first gas turbine engine and a second gas turbine engine is provided.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: November 22, 2016
    Assignee: United Technologies Corporation
    Inventors: Chaohong Cai, Michael H. Levesque, Richard P. Meisner, Timothy J. Crowley, Joshua Adams, Timothy J. Gaudet
  • Patent number: 9482597
    Abstract: A normalization method includes: normalizing a current value of each operating parameter relative to exogenous variables using a first regression model defined on a space generated by the exogenous variables; associating the vector formed by the normalized current values of the parameters with at least one vector class of a set of predefined classes; using at one second regression model defined on the space generated by the exogenous variables for the at least one class associated with the vector to construct, for each parameter, a third regression model onto the space; and normalizing the normalized current value of each parameter relative to the exogenous variables using the third regression model.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 1, 2016
    Assignee: SNECMA
    Inventor: Aurelie Gouby
  • Patent number: 9447735
    Abstract: A method of controlling a turbine engine, including: measuring a first temperature by a first temperature sensor; measuring a second temperature by a second temperature sensor; estimating a third temperature modeling the first temperature; and determining at least one control setpoint for at least one piece of variable-geometry equipment of the engine, as a function of the measured first temperature. The first sensor presents a time constant longer than a time constant of the second sensor. The method further detects ingestion of water or hail as a function of a drop in the measured second temperature; and when water or hail ingestion is detected, determines the control setpoint as a function of the estimated third temperature.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: September 20, 2016
    Assignee: SNECMA
    Inventors: Bruno Robert Gaully, Cedrik Djelassi, Darragh McGrath, Jean-Michel Roux
  • Patent number: 9441545
    Abstract: A fuel supply apparatus is provided with a plurality of flow-rate regulating valves that regulate the flow rate of fuel flowing in a fuel supply line; a calculating section that calculates a required flow-rate coefficient on the basis of at least a fuel pressure in the fuel flow upstream of the flow-rate regulating valves, a pressure determined in advance as a fuel pressure downstream of the flow-rate regulating valves, and the flow rate of fuel to be supplied to one fuel nozzle among different kinds of fuel nozzles, the required flow-rate coefficient being the coefficient of the flow-rate regulating valve corresponding to the one fuel nozzle; and a valve control section that controls the degree-of-opening of the flow-rate regulating valve corresponding to the one fuel nozzle on the basis of the required flow-rate coefficient.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: September 13, 2016
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventor: Shoichi Harada
  • Patent number: 9404426
    Abstract: A control method for optimizing an operation of a power plant having generating units during a selected operating period subdivided so to include regular intervals within which each of the generating units comprises one of an on-condition and an off-condition.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: August 2, 2016
    Assignee: General Electric Company
    Inventors: Lisa Anne Wichmann, Achalesh Kumar Pandey, Christopher Michael Raczynski
  • Patent number: 9335184
    Abstract: A malfunction detection device for a resolver detects malfunction in a resolver with accuracy and stability even if a value of a square sum is varied between inside and outside of a normal range. When the resolver is in malfunction, a sine signal and a cosine signal are read. It is determined whether a malfunction determination of the resolver is prohibited, or not, from read values of the sine signal and the cosine signal, or square values thereof. When it is determined that the malfunction determination of the resolver is prohibited, the count value is accumulated and incremented every time the test value falls outside a normal range. When the count value arrives at a given value or higher, it is determined that the resolver is in malfunction.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 10, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shunichi Wada, Takayuki Yamamoto, Ryoichi Yonezawa, Masaki Matsushita, Katsuya Ikemoto
  • Patent number: 9328674
    Abstract: One illustrative embodiment is a method comprising operating an engine and an aftertreatment system by controlling a plurality of charge constituents provided the engine, iteratively perturbating one or more combustion inputs effective to vary operation of the engine, and determining fuel consumption and emissions information at the operating points effective to seek a weighted optimization of multiple parameters including fuel consumption and reductant consumption while also meeting a predetermined NOx emissions criterion. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the description and figures.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: May 3, 2016
    Assignee: Cummins Inc.
    Inventors: Mert Geveci, Feng Liu, Andrew W. Osburn
  • Patent number: 9329102
    Abstract: A system for optically monitoring a gas turbine engine includes a viewport having an opening disposed within a casing of the gas turbine engine. The opening extends from an interior side of the casing to an exterior side of the casing, and the viewport is configured to receive an image from inside the casing. The system also includes an optical connection positioned outside the casing and optically coupled to the viewport. The optical connection is configured to convey the image from the viewport to a detector array, and the optical connection includes multiple optical fibers fused to one another to form a unitary substantially rigid fiber bundle.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: May 3, 2016
    Assignee: General Electric Company
    Inventors: Wontae Hwang, William Albert Challener, Jason Harris Karp