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| Number | Title | Issue Date |
| 8185291 | Stall prediction apparatus, prediction method thereof, and engine control system A stall prediction apparatus of an axial compressor provided with: a rotor provided with a plurality of rotor blades; and a cylindrical casing facing the rotor blades and provided so as to cover the outer circumference of the rotor, comprising: pressure sensors prov... | 05/22/2012 |
| 8185292 | Method for estimation of at least one engine parameter A system comprising determination of tuning parameters enabling optimal estimation of unmeasured engine outputs, e.g., thrust. The level of degradation of engine performance is generally described by unmeasurable health parameters related to each major engine compon... | 05/22/2012 |
| 8175786 | Method for operating a gas turbine and also gas turbine for carrying out the method A method is provided for operating a gas turbine, which especially feeds power to a local isolated power supply network, and which comprises a compressor for compressing combustion air which is drawn in from the environment, a combustion chamber for combusting suppl... | 05/08/2012 |
| 8170771 | Fluid-powered thrust reverser actuation system speed control A fluid-powered thrust reverser actuation speed control system and method are provided. A drive fluid is supplied to a fluid-powered drive mechanism that is coupled to a thrust reverser movable component to thereby move the thrust reverser movable component at a fir... | 05/01/2012 |
| 8160799 | Turbine bypass control apparatus and turbine bypass control method A turbine bypass control method includes: a high-pressure side pressure controller configured to output a first operation amount signal corresponding to a valve opening; a low-pressure side pressure controller configured to output a second operation amount signal co... | 04/17/2012 |
| 8145403 | Operating a turbine at baseload on cold fuel with hot fuel combustion hardware A method and algorithm are provided to operate a gas turbine at baseload in an emission compliant capable mode to avoid combustion dynamics while operating with cold fuel and hot fuel combustion hardware. The method includes performing a gas turbine operational sequ... | 03/27/2012 |
| 8140242 | Systems and methods involving multiplexed engine control signals Systems and methods involving multiplexed engine control signals are provided. In this regard, a representative engine control system for a gas turbine engine includes: a signal relay device operative to receive multiplexed signals from an engine electronic control ... | 03/20/2012 |
| 8126630 | System for controlling torque converter temperature during torque converter stall conditions A method and system are provided for controlling the operating temperature of a torque converter during torque converter stall conditions. The torque converter has a pump rotatably driven by an internal combustion engine and a rotatable turbine fluidly coupled to th... | 02/28/2012 |
| 8126628 | Aircraft gas turbine engine blade tip clearance control A method and system adjusts blade tip clearance between rotating aircraft gas turbine engine blade tips and a surrounding shroud in anticipation of and before an engine command that changes an engine rotational speed. The method may include determining when to begin... | 02/28/2012 |
| 8126629 | Method and system for operating gas turbine engine systems Methods and systems for operating a gas turbine engine system are provided. The system includes a gas turbine engine that includes at least one combustor configured to receive a flow of fuel from a flow control device and a fuel control system. The fuel control syst... | 02/28/2012 |
| 8121773 | Method and an instrument for determining the limiting parameter of a turboshaft engine The present invention relates to a method and to an instrument for determining the limiting margin of a surveillance parameter of a turboshaft engine. During a preliminary stage, a secondary processor means (11) determines a preliminary comfort margin. Therea... | 02/21/2012 |
| 8116959 | System and method of vehicular wireless communication A system and method of vehicular wireless communication over a Dedicated Short Range Communication service band is provided. The system includes a vehicle having a navigation means, a processor, and a communication means for transmitting a message via a wireless com... | 02/14/2012 |
| 8112216 | Late lean injection with adjustable air splits A gas turbine engine is provided and includes a combustor having a first interior in which a first fuel is combustible, a turbine into which products of at least the combustion of the first fuel are receivable, a transition zone, including a second interior in which... | 02/07/2012 |
| 8050842 | Method and apparatus for controlling and regulating a rotorcraft turbine engine The present invention relates to a method and to an apparatus (9) for controlling and regulating a rotorcraft turbine engine (1). The apparatus is provided with an electronic control and regulation computer (3) that receives signals relating to ... | 11/01/2011 |
| 8050843 | Estimating health parameters or symptoms of a degrading system The present invention is concerned with the estimation of health parameters p(k) representing symptoms of a slowly degrading system, in particular industrial gas turbines. According to the invention, an estimation of a true health or independent parameter vector at ... | 11/01/2011 |
| 8036805 | Distributed engine control system A distributed engine control system is provided. The engine control system includes first and second engine data concentrators. Each of the first and second engine data concentrators include a processor module, a signal conditioning module coupled to the processor m... | 10/11/2011 |
| 8024103 | Method and device for monitoring an exhaust gas turbocharger of an internal combustion engine A method and a device are described for monitoring an exhaust gas turbocharger of an internal combustion engine, which allow a diagnosis of the oil supply to an exhaust gas turbocharger. In at least one operating state of the internal combustion engine, a variable t... | 09/20/2011 |
| 8019523 | Late lean injection with adjustable air splits A gas turbine engine is provided and includes a combustor having a first interior in which a first fuel is combustible, a turbine into which products of at least the combustion of the first fuel are receivable, a transition zone, including a second interior in which... | 09/13/2011 |
| 8019522 | Method and system for providing cooling and power A method for providing cooling and power is provided. The method includes providing a cooling unit that includes a first turbine rotatably coupled to a generator by a first shaft and providing a power unit that includes a second turbine rotatably coupled to a compre... | 09/13/2011 |
| 8014929 | Method of monitoring a gas turbine engine Operation of gas turbine engines and in particular gas turbine engines utilised for aircraft, in an efficient manner is a desired objective. Thus engine efficiency is typically determined through use of an engine performance parameter. One such engine performance pa... | 09/06/2011 |
| 7983829 | System for monitoring sensor outputs of a gas turbine engine In a system for monitoring an output of a sensor for detecting an operating state of a gas turbine engine by comparing a value of an output of the sensor with a prescribed reference value, a calibration map for converting the output of the sensor into a variable tha... | 07/19/2011 |
| 7917278 | System and method for lean blowout protection in turbine engines A lean blowout protection system and method is provided that facilitates improved lean blowout protection while providing effective control of turbine engine speed. The lean blowout protection system and method selectively and gradually biases the lean blowout (LBO)... | 03/29/2011 |
| 7908072 | Systems and methods for using a combustion dynamics tuning algorithm with a multi-can combustor Embodiments of the invention can provide systems and methods for using a combustion dynamics tuning algorithm with a multi-can combustor. According to one embodiment of the invention, a method for controlling a gas turbine engine with an engine model can be implemen... | 03/15/2011 |
| 7904229 | Method for determination of engine lubrication oil consumption A method of determining lubrication oil consumption in a gas turbine engine that has an engine operating cycle interval comprising a starting phase, a running phase and a shutdown phase, comprises the steps of: measuring lubrication oil level upon initialization of ... | 03/08/2011 |
| 7869928 | Estimating health parameters or symptoms of a degrading system The present invention is concerned with the estimation of health parameters p(k) representing symptoms of a slowly degrading system, in particular industrial gas turbines. According to the invention, an estimation of a true health or independent parameter vector at ... | 01/11/2011 |
| 7860635 | Singular value decomposition-based method for optimal estimation of turbofan engine thrust and other unmeasurable parameters A new linear point design technique is presented for the determination of tuning parameters that enable the optimal estimation of unmeasured engine outputs such as thrust. The engine's performance is affected by its level of degradation, generally described in terms... | 12/28/2010 |
| 7853392 | Systems and methods for initializing dynamic model states using a Kalman filter Embodiments of the invention can provide systems and methods for initializing dynamic model states using a Kalman or similar type filter. In one embodiment, a system for controlling a gas turbine engine is provided. The system can include at least one sensor adapted... | 12/14/2010 |
| 7844385 | Microserver engine control card An integrated system for monitoring a deployed product on a movable platform, gathering data about the deployed product, and disseminating the, data about the deployed product is disclosed. The system includes a server located on the movable platform capable of comm... | 11/30/2010 |
| 7840333 | Event-driven starter controller An event-driven starter controller regulates the speed of a gas turbine engine based on detected events. The event-driven starter controller is used to supply motive force to the gas turbine engine prior such that the gas turbine engine is able to ignite (i.e., achi... | 11/23/2010 |
| 7840332 | Systems and methods for steam turbine remote monitoring, diagnosis and benchmarking Systems and methods for steam turbine remote monitoring, calculating corrected efficiency, monitoring performance degradation, diagnosing and benchmarking are disclosed with an example turbine system including a turbine, a data acquisition device coupled to the turb... | 11/23/2010 |
| 7826954 | System for monitoring sensor outputs of a gas turbine engine In a system for monitoring an output of a sensor for detecting an operating state of a gas turbine engine by comparing a value of an output of the sensor with a prescribed reference value, a calibration map for converting the output of the sensor into a variable tha... | 11/02/2010 |
| 7788013 | Techniques for remotely adjusting a portion of an airplane engine A technique provides a remote adjustment to a portion of an airplane engine. The technique involves attaching a remote adjuster to the portion of the engine at a proximate location to the engine while the engine is not running. The portion is configured to receive a... | 08/31/2010 |
| 7788014 | Process and methodology for root cause identification in gas turbine engine performance tracking A system and method for narrowing an assessment of root cause to a single stage within a gas turbine engine module using coupling factors and known instrumentation non-repeatability. Embodiments examine certain root cause (RC) effects that manifest themselves as cou... | 08/31/2010 |
| 7769521 | Method and a device for performing a check on the state of health of a turbine engine of a twin-engined rotorcraft The present invention relates to a method and to a device (D) enabling a health check to be performed on at least a first turbine engine (M1) of a rotorcraft, the rotorcraft being provided with first and second turbine engines (M1 and M2) contro... | 08/03/2010 |
| 7761216 | Apparatus and methods for acoustically determining internal characteristics of an engine and the like Apparatus and methods are disclosed for determining internal engine characteristics using acoustic-vibration data. Exemplary such data are passive acoustic pyrometer data. Acoustic-vibrational frequencies emanating from a running engine are detected and compared to ... | 07/20/2010 |
| 7756626 | Gas turbine output learning circuit and combustion control device for gas turbine having the same A gas turbine output learning circuit is configured to compute a current combustion gas temperature TIT at an inlet of a gas turbine by linear interpolation by use of two characteristic curves A and B respectively representing relations between a pressure ratio and ... | 07/13/2010 |
| 7725236 | Maneuver based aircraft gas turbine engine speed control A system and method for controlling the rotational speed of a gas turbine engine in an aircraft includes appropriate devices and processes for determining a pressure of lubricant supplied to the turbine engine, and for determining a maneuver state of the aircraft. T... | 05/25/2010 |
| 7702447 | Method and system for identifying gas turbine engine faults An isolation method and system is described for distinguishing between turbine case cooling (TCC) and high pressure turbine (HPT) performance faults. A trend is observed in gas path parameter data during cruise and a resulting percent Δ signature across the shift i... | 04/20/2010 |
| 7693643 | Fault detection system and method for turbine engine fuel systems A system and method is provided that facilitates improved fault detection. The fault detection system provides the ability to detect symptoms of fault in the fuel system of a turbine engine. The fault detection system captures selected data from the turbine engines ... | 04/06/2010 |
| 7664590 | System for detecting ignition failure in a gas turbine engine A method of operating a gas turbine engine is provided. The method includes introducing a fuel into a combustor, detecting a failure of ignition of the fuel, and preventing ignition until the introduced fuel is substantially removed from the gas turbine engine. ... | 02/16/2010 |
