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7621716 |
Turbine case cooling
A method of controlling turbine case cooling in a gas turbine engine, the method including monitoring the present state of the engine 32 and using a predictive model based system 44, 46 to...
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7620461 |
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...
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7603222 |
Sensor diagnostics using embedded model quality parameters
A method and system is provided for identifying in-range sensor faults in a gas turbine engine, by observing the tracked component qualities in an embedded model and recognizing anomalous patterns...
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7599767 |
Control apparatus and control method for aircraft
When both engines operate properly, a control apparatus for an aircraft performs control of thrust and attitude of an aircraft using an output that is produced evenly by the two engines. When a...
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7593803 |
Method for controlling fuel splits to gas turbine combustor
A method for determining a target exhaust temperature for a gas turbine including: determining a target exhaust temperature based on a compressor pressure condition; determining a temperature...
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7593802 |
Lead-lag input filter arrangement for electro-pneumatic control loops
A lead-lag input filter is connected ahead of a positioner feedback loop having one or more valve accessories, such as a volume booster or a QEV, to overcome slow dynamics experienced by the...
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7571057 |
System and method for monitoring degradation
A degradation monitoring system including: a machine; a sensor affixed to the machine, the sensors measuring a operational parameters of the machine; a set of filters receptive of information about...
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7571045 |
Control system for gas-turbine engine
In a gas-turbine engine control system having a first control channel inputting the outputs of sensors to calculate and output a first command value indicative of a quantity of fuel to be supplied...
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7552005 |
Method for fault diagnosis of a turbine engine
A method of diagnosing a turbine engine includes the steps of acquiring engine operating parameters; calculating corresponding engine residual values; computing the mean and the standard deviation...
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7536252 |
Method and system for controlling a flowrate of a recirculated exhaust gas
A method and system for controlling an exhaust gas recirculation (EGR) system is provided. The EGR system recirculates a portion of an exhaust through an inlet portion of the turbomachine. The EGR...
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7536244 |
Failure diagnostic apparatus and method for an air-fuel ratio sensor
A failure diagnostic apparatus is provided with an offset power source for offsetting a ground-side voltage of an air-fuel ratio sensor, an activation state judging unit for judging whether the...
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7532970 |
Method of optimizing the performance envelope of a turbine engine
A method of optimizing an initial performance envelope of a rotorcraft turbine engine, the initial envelope being associated with a maximum number of flying hours that the turbine engine can...
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7532969 |
Gas turbine speed detection
A gas turbine engine having at least a rotor shaft operatively connecting a compressor apparatus and a turbine apparatus, comprises an auxiliary gear box and a phonic wheel apparatus. The auxiliary...
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7530216 |
Control system for a gas turbine engine
In a control system for a gas turbine engine, a degradation level of the gas turbine engine is estimated according to a deviation of an output of an internal temperature sensor when the engine is...
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7512476 |
Monitoring system of gas turbine components
A monitoring system of components of a gas turbine ( 1 ) comprising:
a acquisition device ( 3 ) of signals proportional to functioning parameters characteristic of the functioning state of a...
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7509207 |
Turbine engine noise reduction
A method for determining how well configurations for a gas turbine propulsion system attain selected acoustic wave energy emissions criteria based on acquiring a plurality of acoustic frequency...
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7506517 |
System and method for turbine engine startup profile characterization
A system and method is provided for startup characterization in a turbine engine that provides the ability to accurately characterize engine startup. The startup characterization system and method...
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7505844 |
Model-based iterative estimation of gas turbine engine component qualities
A method of estimating quality parameters for a plurality of engine components of a gas turbine engine is provided. The engine components have at least one sensor responsive to the engine component...
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7487029 |
Method of monitoring gas turbine engine operation
A system, method and apparatus for monitoring the performance of a gas turbine engine. A counter value Indicative of the comparison between the engine condition and the threshold condition is...
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7465145 |
Tip clearance control system
The invention is a method for controlling blade tip clearance in a turbine engine having a flowpath extending therethrough, and a system for carrying out the method. The method includes acquiring a...
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7455495 |
Systems and methods for monitoring thermal growth and controlling clearances, and maintaining health of turbo machinery applications
A system and method for determining thermal growth of motor or engine parts to thereupon control the clearance of motor or engine fan blades is disclosed herein. In addition, a system and method...
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7454892 |
Systems and methods for detection and control of blowout precursors in combustors using acoustical and optical sensing
The present invention comprises methods for detecting and controlling flame blowout in combustors. The blowout precursor detection system comprises a combustor, a blowout precursor detection unit,...
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7430483 |
Method and apparatus for diagnosing a mechanism
A method of analyzing variations in an indicator of the behavior of a mechanism, in which noise is extracted, and any discontinuities from an indicator in order to obtain a trend, variations in the...
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7426829 |
Vane control
An exemplary controller includes a control valve that includes an electric actuator operatively coupled to a valve stem, a piston operatively coupled to one or more hydraulic fluid paths controlled...
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7424360 |
Overspeed control system for gas turbine electric powerplant
A turbine overspeed control system for use with a gas turbine engine of a gas turbine electrical powerplant. The overspeed control system preferably comprises a first and second overspeed control...
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7415328 |
Hybrid model based fault detection and isolation system
Method for detecting faults in a device comprising the steps of receiving a plurality of performance parameters, applying the plurality of performance parameters to a first model to produce a...
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7412320 |
Detection of gas turbine airfoil failure
A system and method for early detection of a failure of a gas turbine engine airfoil ( 10 ), such as but not restricted to a burn through of the airfoil outer skin ( 12 ). A sensor ( 52 ) provides...
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7383165 |
System and method for diagnosing faults utilizing baseline modeling techniques
System, method and computer product for baseline modeling a product or process. A service database contains process data. A preprocessor processes the data into a predetermined format. A baseline...
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7376504 |
Method of engine surge discrimination
A method from discriminating between spurious and genuine surges in a gas turbine engine is provided which includes the steps of receiving an engine speed signal over a global engine surge...
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7369932 |
System and method for turbine engine fault detection using discrete event system modeling
A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis....
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7353102 |
Trouble diagnosis apparatus for supercharger of internal combustion engine
An internal combustion engine includes parallel first and second intake passages, and the intake passages respectively include first and second superchargers. A first airflow meter measures the...
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7346592 |
Method and an apparatus for predicting intake manifold pressure of an internal-combustion engine
A method and an apparatus for predicting intake manifold pressure are presented, to compensate for a large lag or a large time delay without producing an overshot or discontinuous behaviors of a...
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7337057 |
Methods and apparatus for predicting and/or for avoiding lean blow-outs
A method for predicting lean blow-outs (LBOs) in a gas turbine engine includes extracting a plurality of tones in pressure signals representative of pressure within monitored combustor cans,...
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7334405 |
Method of controlling an exhaust gas turbocharger
In a method of controlling an exhaust gas turbocharger of an internal combustion engine charged by a compressor wherein as guide value for the control an operating point of the compressor is used,...
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7328098 |
Determining bleed valve failures in gas turbine engines
The invention detects gas turbine bleed valve position discordances. The invention derives a modified exhaust gas temperature derivative as the predictive criteria in conjunction with a control...
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7302334 |
Automatic mapping logic for a combustor in a gas turbine engine
A mapping device maps each burner mode at various bleed settings to generate control schedules for a combustion controller that ensure combustion dynamic (acoustic) pressures, and emissions limits...
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7299279 |
System and method for real-time viewing of monitoring system data
A method of viewing data of a turbine monitoring system from a remote location is provided. The turbine monitoring system includes a programmable logic controller having an interface rack. In an...
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7286923 |
System and method for estimating turbine engine deterioration rate with noisy data
A method for monitoring engine performance includes sampling exhaust gas temperature associated with a turbine engine over an interval of operational time of the turbine engine. The method further...
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7280941 |
Method and apparatus for in-situ detection and isolation of aircraft engine faults
A method for performing a fault estimation based on residuals of detected signals includes determining an operating regime based on a plurality of parameters, extracting predetermined noise...
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7277838 |
Bootstrap data methodology for sequential hybrid model building
A method for modeling engine operation comprising the steps of: 1. collecting a first plurality of sensory data, 2. partitioning a flight envelope into a plurality of sub-regions, 3. assigning the...
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7260933 |
Method for limiting a boost pressure
In a method for limiting a boost pressure of an internal combustion engine which is supercharged by the compressor of an exhaust gas turbocharger including a control unit in which a desired boost...
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7260466 |
Turbine mechanical output computation device and gas turbine control device equipped therewith
A turbine mechanical output computation device computes a gas turbine mechanical output P from the following equation
P = Pe + J × g × ( 2 π 60 ) 2 × N × ⅆ N ⅆ t
where Pe...
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7251554 |
Dual-architecture microserver 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...
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7246002 |
Method for controlling fuel splits to gas turbine combustor
A method for determining a target exhaust temperature for a gas turbine including: determining a target exhaust temperature based on a compressor pressure condition; determining a temperature...
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7243023 |
Engine balancing system and method
A method for balancing vibrations in a rotating machine is provided. The rotating machine has a first and a second plane of imbalance. The method includes determining a first set of solution mass...
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7222002 |
Vibration engine monitoring neural network object monitoring
The present invention provides an aircraft engine vibration system that provides information about engine health. Embodiments of the present invention monitor for excessive vibration, monitor for...
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7219040 |
Method and system for model based control of heavy duty gas turbine
A method and system of designing the operations and controls of a gas turbine, includes generating an operations model for the gas turbine including at least one objective function and defining...
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7216071 |
Hybrid gas turbine engine state variable model
The present invention relates to a system and a method for developing an engine model. The system broadly comprises a module for generating a state variable model of an engine, which module...
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7200483 |
Controller module for modular supercharger system
There is provided a supercharger controller module of a supercharger system for use in conjunction with a vehicle computer system of a vehicle engine including a microprocessor in communication...
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7197430 |
Method and apparatus for determining engine part life usage
A method for determining an engine part life usage of a gas turbine engine life limited part used on an aircraft. The method includes operating a gas turbine engine that includes a plurality of...
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