Method Of Operation Patents (Class 415/1)
  • Patent number: 9816483
    Abstract: An operation control system for a wind farm having wind turbines includes: a remaining-lifetime estimation unit for estimating remaining lifetime of a component of each wind turbine; a sales-income estimation unit for estimating, for each wind turbine, an income from sales of electric power under a plurality of output control conditions; a maintenance-cost estimation unit for estimating, for each wind turbine, maintenance cost based on the remaining lifetime of the component under each of the plurality of power limit conditions; a power-limit-condition selection unit for selecting, for each wind turbine, a power limit condition that maximizes income obtained from the wind farm, based on the income from sales of electric power and the maintenance cost estimated for each wind turbine under each of the power limit conditions; and an operation command unit for sending an operation command to each wind turbine based on the selected power limit condition.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: November 14, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shigeaki Nakamura, Tohru Minami
  • Patent number: 9816524
    Abstract: The centrifugal compressor (1) includes: an impeller (3); and a casing (2) accommodating the impeller (3). The casing (2) includes: an inlet (6); an impeller-accommodating portion (14) in which the impeller (3) is disposed; an annular chamber (11) formed around the inlet (6); a downstream groove (13) communicating a downstream end portion of the annular chamber (11) with the impeller-accommodating portion (14); and an upstream groove (12) communicating an upstream end portion of the annular chamber (11) with the inlet (6). In addition, the downstream groove (13) is provided in a predetermined range in a circumferential direction of the impeller (3) so as to communicate with a high-pressure part to occur in part of the impeller-accommodating portion (14), and the upstream groove (12) is provided over the entire circumference of the inlet (6).
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: November 14, 2017
    Assignee: IHI CORPORATION
    Inventor: Hideaki Tamaki
  • Patent number: 9816511
    Abstract: An apparatus for driving a load is provided. The apparatus comprises a multiple-shaft gas turbine comprising a high pressure compressor and a high pressure turbine drivingly connected to one another by a first gas turbine shaft and a low pressure compressor and a power turbine drivingly connected to one another by a second gas turbine shaft extending coaxial with the first gas turbine shaft, the high pressure compressor and the high pressure turbine. The apparatus also comprises a load coupling drivingly connecting the power turbine to the load and a dual-speed turning gear with an output shaft drivingly engageable to and disengageable from the load, the dual-speed turning gear comprising a low speed turning motor and a high speed turning motor, wherein the low speed turning motor and the high speed turning motor are configured to selectively drive the load.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: November 14, 2017
    Inventors: Daniele Marcucci, Giuliano Milani
  • Patent number: 9810088
    Abstract: A blade outer air seal (BOAS) assembly for an engine case of a gas turbine engine includes a multiple of supported air seal segments and a multiple of floating air seal segments circumferentially alternate with the multiple of supported air seal segments.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 7, 2017
    Assignee: United Technologies Corporation
    Inventors: Thurman C Dabbs, James N Knapp
  • Patent number: 9803504
    Abstract: A steam turbine includes a boiler unit, first supply pipes, a second supply pipe, a plurality of valve units, a drain valve unit, and a controller. The controller is configured to control, before rotation of the turbine starts, an operation time and temperature of the auxiliary boiler so that the temperatures of the high-pressure turbine and the intermediate-pressure turbine are increased to the first setting temperature. The controller is configured to control, when the temperatures of the high-pressure turbine and the intermediate-pressure turbine are maintained at the first setting temperature, operation of the main boiler such that the temperature of the intermediate-pressure turbine reaches a second setting temperature while operation of the auxiliary boiler is interrupted, and control, when the temperature of the intermediate-pressure turbine is maintained at the second setting temperature, the operation of the main boiler such that steam is supplied only to the high-pressure turbine.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 31, 2017
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventor: Luke Park
  • Patent number: 9790797
    Abstract: A gas turbine engine includes a spool, a turbine coupled to drive the spool, a propulsor coupled to be driven at a at a design speed by the turbine through the spool, and a gear assembly coupled between the propulsor and the spool. Rotation of the turbine drives the propulsor at a different speed than the spool. The propulsor includes a hub and a row of propulsor blades that extend from the hub. Each of the propulsor blades includes an airfoil body. The leading edge of the airfoil body has a swept profile such that, at the design speed, a component of a relative velocity vector of a working gas that is normal to the leading edge is subsonic along the entire radial span.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: October 17, 2017
    Assignee: United Technologies Corporation
    Inventors: Edward J. Gallagher, Thomas H. Rogers
  • Patent number: 9785602
    Abstract: An electronic flow instrument and method which uses the instrument for monitoring and/or controlling the production or flow of a fluid. The instrument has a multiplexer linked by a USB connection to a microcontroller so that the multiplexer provides multiple USB connection ports for the microcontroller. A resident USB flash drive is installed in one of the USB connection ports for storing long term logging data related to the production or flow of the fluid. Secure access to the electronic flow instrument is provided by using a second USB flash drive containing a security file or password as a security key.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 10, 2017
    Assignee: T & T Computer Products, Inc.
    Inventors: Houston Browning Mount, John T. Penn
  • Patent number: 9784108
    Abstract: A rotary machine for compression and decompression, comprising a disc-shaped rotor having a first rotation axis at right angles to the plane of the rotor and situated in a plane of orientation and a disc-shaped swing element having a second rotation axis. In the orientation plane, the second rotation axis makes an angle with the first rotation axis. Furthermore, a spherical housing is present surrounding the rotor and the swing element and in combination forming four (de-)compression chambers. A connecting body positions the rotor and the swing element in the housing. The rotary machine furthermore comprises a power drive and a mechanical connection delivering power to or taking off power from the rotary machine. In addition, the rotary machine is suitable for the seamless integration of generator components for generating or using electricity.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: October 10, 2017
    Assignee: Be-Kking Management B.V.
    Inventor: Wilhelmus Theodorus Clemens Bekking
  • Patent number: 9776712
    Abstract: A rotary wing aircraft including a vehicle vibration control system.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: October 3, 2017
    Assignee: LORD Corporation
    Inventors: Mark R. Jolly, Russell E. Altieri, Askari Badre-Alam, Douglas E. Ivers, Doug A. Swanson, Daniel Mellinger, Andrew D. Meyers
  • Patent number: 9777642
    Abstract: A method and system for a turbofan gas turbine engine system is provided. The gas turbine engine system includes a variable pitch fan (VPF) assembly coupled to a first rotatable shaft and a low pressure compressor LPC coupled to a second rotatable shaft. The LPC including a plurality of variable pitch stator vanes interdigitated with rows of blades of a rotor of the LPC. The gas turbine engine system also includes a speed reduction device coupled to said first rotatable shaft and said second rotatable shaft. The gas turbine engine system further includes a modulating pressure relief valve positioned between an outlet of said LPC and a bypass duct and a controller configured to schedule a position of said plurality of variable pitch stator vanes and said modulating pressure relief valve in response to an operational state of said turbofan gas turbine engine system and a temperature associated with said LPC.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: October 3, 2017
    Assignee: General Electric Company
    Inventors: Kurt David Murrow, Andrew Breeze-Stringfellow, Randy M. Vondrell, Tsuguji Nakano, Jeffrey Anthony Hamel, Darek Tomasz Zatorski
  • Patent number: 9771856
    Abstract: A centrifugal compressor having a casing that houses an impeller allowing rotation about a rotational axis C, a gas channel, a treatment hollow part provided inside the casing, a first channel open to the gas channel on the downstream side of the blade leading edge of the impeller, a second channel open to the gas channel at the upstream side of the blade leading edge, a guide vane that imparts a swirl component in an opposite rotational direction of the impeller to gas discharged from the second channel, a constricting part that constricts the gas channel, and a rectifying part that rectifies gas in a direction that minimizes the swirl component about the rotational axis C and also increases the component in the direction of the rotational axis C.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: September 26, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hidefumi Nakao
  • Patent number: 9765789
    Abstract: System and method for testing a pump. The testing of the pump includes determining a Mechanical Power Index (MPI) for the pump. The MPI is determined by operating the pump at operating speed for a minimum operating interval. When the pump is stopped under normal operation by the application, the pump speed is continuously monitored. The time when the pump speed decreases to an initial speed close to the operating speed is read as an initial time. When the pump speed decreases to a final pump speed close to the critical speed, the end time is read and the elapsed time is determined as ?t=end time?initial time. The MPI is calculated to be the initial pump speed minus the final pump speed divided by ?t. The MPI can be used during the lifetime of the pump to determine when the pump is deteriorating.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 19, 2017
    Assignee: Agilent Technologies, Inc.
    Inventors: Follo Alessandro, Flavio Cometti, Gianluca Buccheri, Jonathan Rohed
  • Fan
    Patent number: 9745996
    Abstract: A fan casing includes an impeller housing, a mixed-flow impeller located within the impeller housing, and a motor for driving the impeller. The impeller includes a hub connected to the motor, and a plurality of blades connected to the hub, each blade comprising a leading edge located adjacent the air inlet of the impeller housing, an inner side edge connected to and extending partially about the outer surface of the hub, an outer side edge located opposite to the inner side edge, and a blade tip located at the intersection of the leading edge and the outer side edge. The leading edge comprises an inner portion located adjacent the hub, and an outer portion located adjacent the blade tip, and wherein the inner portion is swept rearwardly from the hub to the outer portion, and the outer portion is swept forwardly from the inner portion to the blade tip.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: August 29, 2017
    Assignee: Dyson Technology Limited
    Inventor: Michal Rafal Nurzynski
  • Patent number: 9739264
    Abstract: Method of operating a wind turbine in response to a wind speed, the wind turbine having at least a rotor with a plurality of blades and a generator comprising a generator rotor and a generator stator, the method comprising, at wind speeds above a first wind speed, increasing the pitch angle of the blades and reducing the rotor speed with increasing wind speed, said first wind speed being superior to the nominal wind speed; wherein at a second wind speed, the speed of the generator rotor is equal to the synchronous generator rotor speed, said second wind speed being superior to said first wind speed; and wherein at wind speeds superior to said second wind speed, the speed of the generator rotor is lower than the synchronous generator rotor speed.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 22, 2017
    Assignee: ALSTOM Renewable Technologies
    Inventor: Jon Boyra Eizaguirre
  • Patent number: 9732756
    Abstract: A centrifugal compressor includes a compressor housing, an impeller wheel which compresses intake gas from an intake-air inlet, a plurality of guide vanes disposed circumferentially along an inner circumferential wall of the intake-air channel between the intake-air inlet and the impeller wheel to swirl the intake gas around the rotational axis, a central intake-air flow path formed at an inner side of the guide vanes to allow the intake gas to flow to the impeller wheel without passing through the guide vanes, and a guide-vane moving mechanism which simultaneously changes the inclination angle of the guide vanes. Guide vanes generate swirl flow at an inner circumferential housing portion of an impeller wheel to improve a surge margin and to restrict decrease in a choke flow rate.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: August 15, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Byeongil An, Hiroshi Suzuki
  • Patent number: 9709070
    Abstract: A fan for a turbofan gas turbine engine having a low hub-to-tip ratio is disclosed. The fan includes a rotor hub and a plurality of radially extending fan blades. Each fan blade defines a hub radius (RHUB), which is the radius of the leading edge at the hub relative to a centerline of the fan, and a tip radius (RTIP), which is the radius of the leading edge at a tip of the fan blade relative to the centerline of the fan. The ratio of the hub radius to the tip radius (RHUB/RTIP) is less than 0.29. In a particular embodiment, this ratio is between 0.25 and 0.29. In another particular embodiment, this ratio is less than 0.25.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 18, 2017
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Karl Heikurinen, Peter Townsend
  • Patent number: 9708921
    Abstract: There is provided an impeller rotating about a rotary shaft, the impeller including: an inlet through which a fluid is introduced; an outlet through which the fluid is discharged; a supporter connected to the rotary shaft; a blade portion provided on the supporter; a shroud portion disposed to cover the blade portion; and a sealing portion including at least one sealing protrusion protruding in a direction that is in parallel with the rotary shaft, and disposed at a portion of the shroud portion, which configures the inlet.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: July 18, 2017
    Assignee: Hanwha Techwin Co., Ltd.
    Inventor: Jong-Kee Ahn
  • Patent number: 9709039
    Abstract: A lightning current transfer unit (100) for a wind turbine, the lightning current transfer unit (100) comprising a first portion (20a) configured to be electrically coupled to an electrically conducting portion of a blade of a wind turbine electrically connected to a down conductor of the blade and a second portion (20b) configured to be electrically coupled to an electrically conducting portion of a nacelle of the wind turbine connected to a down conductor connected to earth. The first portion (20a) and the second portion (20b) are both independently movable to maintain electrical coupling to the electrically conducting portion of the blade and nacelle respectively. A lightning current transfer portion (104) is provided that comprises a spark gap (106) formed between an electrical connection (108) to the first portion (20a) and an electrical connection (110) to the second portion (20b). The electrical connections (108, 110) are moveable with their respective first or second portion (20a, 20b).
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 18, 2017
    Assignee: Vestas Wind Systems A/S
    Inventors: Claus Gron Lyngby, Kent Bach Lønbæk, Anders Niels Hansen
  • Patent number: 9708913
    Abstract: A turbine wheel for low-pressure ratio applications is disclosed. The ratio of the outlet area of the wheel (A2) to the inlet area of the wheel (A1) is less than approximately 0.4. In an embodiment, the wheel is a radial or mixed-flow wheel.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: July 18, 2017
    Assignee: Imperial Innovations Limited
    Inventors: Ricardo Fernando Martinez-Botas Mateo, Alessandro Romagnoli, Aman Mohd Ihsan Bin Mamat
  • Patent number: 9702365
    Abstract: The invention relates to a method and control system to control the speed of a centrifugal compressor operating within a vacuum pressure swing adsorption process to avoid an operation at which surge can occur and directly driven by an electric motor that is in turn controlled by a variable frequency drive. The claimed method determines the optimal speed for operation of the compressor along a peak efficiency operating line of a compressor map thereof. Speed of the compressor is adjusted by a feed back speed multiplier when the flow or other parameter referable to flow through the compressor is below a minimum and a feed forward multiplier during evacuation and evacuation with purge steps that multiplies the feed back multiplier to increase speed of the compressor and thereby avoid surge.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 11, 2017
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Andrew C. Rosinski, Paul W. Belanger, Michael S. Manning
  • Patent number: 9695831
    Abstract: The subject matter of this specification can be embodied in, among other things, a method that includes receiving one or more surge value parameters, selecting a first value from a selected parameter of the one of the parameters, determining a moving average, determining a rate of change, identifying a first phase of a surge cycle based on determining that the rate of change exceeds a threshold rate change, memorializing the first value, the moving average value, and a first time index, receiving a second value of the selected parameter, identifying a second phase of the surge cycle, receiving a third value of the selected parameter, identifying a third phase of the surge cycle, and providing an indication that one or more compressor surge cycles have occurred.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: July 4, 2017
    Assignee: Woodward, Inc.
    Inventor: Alexander Benim
  • Patent number: 9695834
    Abstract: A compressor system includes a compressor train including two or more compressors connected in series and a control mechanism. The control mechanism is controlled by a performance controller. The performance controller is operable to identify a process variable of the performance controller; receive, on a recurrent basis from a load sharing controller, a setpoint for the process variable of the performance controller; and control the control mechanism based on the setpoint and the process variable of the performance controller. The setpoint is determined dynamically during operation of the two or more compressors by the load sharing controller based on a load sharing parameter associated with the two or more compressors.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: July 4, 2017
    Assignee: Woodward, Inc.
    Inventors: Walter Grassens, Brian Eldredge
  • Patent number: 9683484
    Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position in the air inlet. The inlet-adjustment mechanism includes a variable-geometry conduit comprising a plurality of vanes that in the closed position collectively form a converging inlet member having a trailing edge inner diameter that is smaller than an inner diameter of the shroud surface of the compressor housing at the inducer portion of the compressor wheel such that an effective diameter of the air inlet at the inducer portion is determined by the trailing edge inner diameter of the variable-geometry conduit. The vanes in the open position are pivoted radially outwardly so as to increase the trailing edge inner diameter of the inlet member and thereby increase the effective diameter of the air inlet at the inducer portion.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 20, 2017
    Assignee: Honeywell International Inc.
    Inventors: Aurelien Tingaud, Damien Marsal, Chris Groves, Alain Lombard, Lionel Toussaint, Hani Mohtar
  • Patent number: 9683554
    Abstract: The present invention relates to an acoustic noise monitoring system for a wind turbine, comprising: a microphone for monitoring acoustic noise, the microphone adapted to be mounted to the exterior of a wind turbine nacelle; an input, the input adapted to receive operating conditions data from a wind turbine; a processor, the processor adapted to receive data from the microphone and the input; and storage memory, adapted to store the acoustic noise data and the operating conditions data. The processor is adapted to apply a transfer function to said acoustic noise data to correlate said data with a set of acoustic noise data measured at a remote location from the wind turbine. The system may comprise a controller adapted to generate a control signal, for outputting to a wind turbine controller, for adjusting the operating parameters of the wind turbine in dependence on said correlated data.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: June 20, 2017
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Frank Ormel, Bryan Edwards
  • Patent number: 9683563
    Abstract: A system and method are provided for a variable speed compressor with a control module that controls an operating frequency of the variable speed compressor. The control module stores a prohibited frequency range that includes a resonant frequency of the variable speed compressor and an allowed upper frequency above the prohibited frequency range and an allowed lower frequency below the prohibited frequency range. The control module determines a requested frequency and operates the variable speed compressor at the allowed upper frequency for an upper frequency operating time and at the allowed lower frequency for a lower frequency operating time when the requested frequency is within the prohibited frequency range. The control module determines the upper frequency operating time and the lower frequency operating time such that a time-averaged frequency output over the upper frequency operating time and the lower frequency operating time corresponds to the requested frequency.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 20, 2017
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Jean-Luc M. Caillat
  • Patent number: 9683580
    Abstract: A cooling fan shroud for an internal combustion engine has a fan port including a fixed cylindrical segment and a movable cylindrical segment mounted by a hinge. A pivot plate on the movable cylindrical segment is compressed with a base plate on a shroud main body so that a loading rib on one plate provides a frictional resistance. A dual-position locking mechanism retains the movable cylindrical segment in an extended position or a retracted position. The mechanism is comprised of a tab extending from the movable cylindrical segment and a ratchet pocket in the main body receiving the tab, wherein the ratchet pocket has a pair of stop notches separated by a deflector rib. The movable cylindrical segment is bendable to allow the tab to ride over the deflector rib in response to a predetermined pivot force applied to the movable cylindrical segment.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: June 20, 2017
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: James S. Tyler, Saulo Da Cortes Cervantes
  • Patent number: 9651443
    Abstract: The present disclosure is directed to a system and method for protecting a rotary machine in a high noise environment. In one embodiment, the method includes a step of measuring a vibration signal during operation of the rotary machine. Another step includes modulating the vibration signal at a desired frequency to generate a modulated signal having a direct current (DC) value. The desired frequency varies as a function of an operational parameter of the rotary machine. The method also includes a step of filtering the modulated signal via one or more low-pass filters. Another step includes comparing an amplitude of the filtered signal to a threshold amplitude for one or more components of the rotary machine. The threshold amplitude is indicative of an imbalance within one or more components of the rotary machine. The rotary machine is then operated based on the comparison so as to protect the rotary machine from damage caused by the imbalance within the one or more components of the rotary machine.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 16, 2017
    Assignee: General Electric Company
    Inventors: Mark Edward Cardinal, Jignesh Govindlal Gandhi, Robert J. Dewey, Ryan Spencer Close, Thomas Ernst Dinjus, Bernardo Adrian Movischoff, David Charles Korim
  • Patent number: 9650909
    Abstract: In certain embodiments, a system includes a controller configured to obtain an inter-stage pressure measurement between stages of a multi-stage compressor. The controller is also configured to identify actual damage in the multi-stage compressor based at least in part on the inter-stage pressure measurement.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: May 16, 2017
    Assignee: General Electric Company
    Inventor: Raub Warfield Smith
  • Patent number: 9650965
    Abstract: A gas turbine engine according to an example of the present disclosure includes, among other things, a fan, a turbine section having a fan drive turbine rotor, and a compressor rotor. A gear reduction is configured to effect a reduction in a speed of the fan relative to an input speed from the fan drive turbine rotor. Each of the compressor rotor and the fan drive turbine rotor includes a number of blades in each of a plurality of blade rows. The number of blades are configured to operate at least some of the time at a rotational speed.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: May 16, 2017
    Assignees: United Technologies Corporation, MTU Aero Engines AG
    Inventors: David A. Topol, Bruce L. Morin, Detlef Korte
  • Patent number: 9631504
    Abstract: A guide vane is disclosed. The guide vane includes a button, a trunnion connected to the button, and an airfoil connected to the button. The airfoil includes an overhang portion wherein the overhang portion extends from one end of the button to a distal end of the airfoil. The guide vane includes a button corner located near the beginning of the overhang portion. The guide vane includes a variable fillet extending into the overhang portion. The variable fillet includes sections of different radiuses along the length of the fillet.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: April 25, 2017
    Assignee: Solar Turbines Incorporated
    Inventor: Sean Joseph Bentley
  • Patent number: 9611857
    Abstract: An anti-surge system capable of anticipating a surge event in a compressor for readying the actuator to quickly actuate the anti-surge valve from the closed position to the open position. The control system includes a compressor surge controller configured to transmit a signal to the valve positioner when the operating point of the valve is approaching the surge control line. The compressor surge controller may monitor an operating margin equal to the difference between the operating point and the surge control line, and when the operating margin falls below a prescribed threshold, the compressor surge controller may send a signal to the positioner. In turn, the positioner may vent some pressure from the actuator. In this way, the dead time of the anti-surge valve on the valve seat is minimized and the valve will react more promptly to an opening signal.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: April 4, 2017
    Assignee: Control Components, Inc.
    Inventors: Fabio Giove, Flavio Tondolo, Marco Mastrovito
  • Patent number: 9605558
    Abstract: Systems and methods for preventing excessive loading on a wind turbine are disclosed. The method includes: measuring an actual wind parameter upwind from the wind turbine using one or more sensors; providing the measured wind parameter to a processor; providing a plurality of wind turbine operating data to the processor; utilizing the plurality of operating data to determine an estimated wind turbine condition at the wind turbine; generating a control wind profile based on the actual wind parameter and the estimated wind turbine condition; and, implementing a control action based on the control wind profile to prevent excessive loading from acting on the wind turbine.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 28, 2017
    Assignee: General Electric Company
    Inventors: Thomas Franklin Perley, Brandon Shane Gerber, Arne Koerber
  • Patent number: 9605541
    Abstract: A bladed rotor for a turbomachine, in particular a gas turbine, having a plurality of blades distributed around the circumference thereof; the blade distribution being made up of a natural-number sector count of first angular sectors and second angular sectors; a first blade count of first blades being arranged in the first angular sectors, and a second blade count of second blades being arranged in the second angular sectors, said second blade count being different from said first blade count; and the sector count being odd (Z=2n+1, n=1, 2, 3, . . . ) and/or greater than two (Z>2).
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 28, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Johann Geppert, Peter Eibelshaeuser
  • Patent number: 9551276
    Abstract: Systems and methods are provided for reducing surge in a boosted engine system. One method comprises adjusting an opening of a compressor recirculation valve to allow a compressor recirculation flow based on a combination of a nominal compressor recirculation flow and a filtered nominal compressor recirculation flow. The nominal compressor recirculation flow may be calculated as a difference between a desired compressor flow rate based on a surge limit of compressor and an estimated throttle mass flow rate.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: January 24, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hamid-Reza Ossareh, Paul Martin Niessen
  • Patent number: 9523286
    Abstract: A vane segment according to the present invention includes: an outer connection member connecting a plurality of vanes; positioning jigs for positioning end vanes located at both ends, of the plurality of vanes; and radial restriction sections which restrict the outer connection member so as to be relatively immovable to an outer side in a radial direction of a vane ring, wherein: each of the plurality of vanes has a vane main body and an outer shroud; grooves are formed in the outer shrouds; openings into each of which the positioning jig is inserted are formed in portions of the outer connection member; holes into each of which the positioning jig inserted in the opening is inserted are formed in bottoms of the grooves of the two end vanes; and at least one of the positioning jigs is an eccentric positioning jig.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: December 20, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kunihiko Waki, Kenichi Arase
  • Patent number: 9513051
    Abstract: There is provided a method for recovering hydrocarbon compounds from a gaseous by-products generated in the Fisher-Tropsch synthesis reaction, the method comprising a pressurizing step in which the gaseous by-products are pressurized, a cooling step in which the pressurized gaseous by-products are pressurized to liquefy hydrocarbon compounds in the gaseous by-products, and a separating step in which the hydrocarbon compounds liquefied in the cooling step are separated from the remaining gaseous by-products.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: December 6, 2016
    Assignees: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION, INPEX CORPORATION, JX NIPPON OIL & ENERGY CORPORATION, JAPAN PETROLEUM EXPLORATION CO., LTD., COSMO OIL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventor: Kazuhiko Tasaka
  • Patent number: 9506474
    Abstract: Methods and systems are provided for adapting a compressor surge line in real-time. In one example, a method may include retarding a surge line in response to a number of surge events greater than a threshold number of surge events, and advancing the surge line in response to a number of aggressive tip-out events, that do not result in surge, greater than a threshold number of tip-out events.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: November 29, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Baitao Xiao, Hamid-Reza Ossareh, Adam Nathan Banker
  • Patent number: 9501035
    Abstract: An electronic apparatus includes a thermopile array sensor, a reflector, and a temperature detection unit. The thermopile array sensor includes a plurality of thermopile elements arranged in a two-dimensional array pattern and a temperature detection surface divided into a plurality of predetermined regions aligned in vertical and horizontal directions, and the thermopile elements output a temperature detection signal corresponding to a temperature of the respective predetermined regions. The reflector is set at an angle to reflect infrared light emitted from a measurement point located outside of a viewing angle of the thermopile array sensor, so as to allow the infrared light to be incident on the temperature detection surface. The temperature detection unit detects the temperature on the basis of the temperature detection signal outputted from each of the thermopile elements. The thermopile array sensor and the reflector are located inside the electronic apparatus.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: November 22, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kentaro Naruse, Rie Tezuka
  • Patent number: 9500085
    Abstract: A method for enhancing one or more performance parameters of a gas turbine having at least one row of clocked airfoils may generally include choosing a first, a second and a third row of airfoils where the third row is clocked relative to the first row. An unsteady computational fluid dynamics model may be used to determine at least one wake parameter of a working fluid flowing from the second row of the airfoils to the third row of the airfoils. At least one design parameter of the airfoils of the second row may be modified, and the unsteady computational fluid dynamics model may then be used to determine the effect of the airfoil design parameter modification on the at least one wake parameter. The effect on the wake parameter may be compared to a predetermined target range.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 22, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Paul Kendall Smith, Sylvain Pierre, Dennis Scott Holloway
  • Patent number: 9494281
    Abstract: Systems and methods are provided for compressing a cryogenic fluid using a multi-stage compressor. Coolant in a first coolant loop cools cooling jackets of the compression stages and/or inter-stage heat exchangers and warms a pre-compression heat exchanger. The temperature of the coolant in the first heat exchanger is moderated by ambient-air heat exchange. The process fluid is electively cooled by one of the interstage heat exchangers after each of the compression stage if the temperature of the process fluid is above a temperature criterion. This enables the system to operate through a transient period (cool down period) without venting process fluid. The interstage heat exchangers are preferably bypassed when the system reaches steady-state operating temperature.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: November 15, 2016
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David Jonathan Chalk, David John Farese
  • Patent number: 9488191
    Abstract: An exhaust diffuser comprising an inner boundary and an outer boundary forming an annular gas path, and a plurality of strut structures extending radially within the gas path. Each of the strut structures include pressure and suction side walls, and a plurality of radially spaced flow injectors are formed in at least one of the pressure and suction side walls for injecting a fluid flow into the gas path adjacent to the strut structure. At least two fluid supply conduits provide a fluid flow to respective radially spaced flow injectors, and a flow control device is associated with each of the conduits to independently control a fluid flow from a fluid source to each of the radially spaced flow injectors.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: November 8, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventor: Pawel Matys
  • Patent number: 9476319
    Abstract: A turbocharger has a turbine housing formed with a coolant inlet channel and a coolant outlet channel. The turbine housing contains a coolant separating region in which delivered coolant is separated and a coolant combining region in which coolant is combined again. Each of the coolant separating region and the coolant combining region is equipped with a conical conducting body.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: October 25, 2016
    Assignee: Continental Automotive GmbH
    Inventors: Mathias Bogner, Ralph-Maurice Koempel, Marc Hiller
  • Patent number: 9435221
    Abstract: Embodiments of the invention relate generally to turbomachines and, more particularly, to the positioning of airfoils to reduce pressure variations entering a diffuser. One embodiment includes a turbomachine comprising a diffuser, a plurality of airfoil rows, including a first airfoil row adjacent the diffuser, the first airfoil row being of a first type selected from a group consisting of stationary vanes and rotating blades, a second airfoil row adjacent the first airfoil row, the second airfoil row being of a second type different from the first type, and a third airfoil row of the first type adjacent the second airfoil row, wherein at least one of the plurality of airfoil rows is clocked, relative to another airfoil row of the turbomachine, reducing variations in airflow circumferential pressure at at least one spanwise location in the diffuser adjacent the first airfoil row in an operative state of the turbomachine.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: September 6, 2016
    Assignee: General Electric Company
    Inventor: Paul Kendall Smith
  • Patent number: 9429161
    Abstract: Provided is a method of controlling a compressor system including measuring variables for generating a performance curve of a compressor, calculating changing rates of the variables; comparing the calculated changing rates with preset changing rate variations; and determining a surge control line different from a preset surge control line according to the calculated changing rates if the calculated changing rates are out of ranges of the preset changing rate variations.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 30, 2016
    Assignee: Hanwha Techwin Co., Ltd.
    Inventor: Sung-soon Park
  • Patent number: 9422826
    Abstract: A start control unit for a steam turbine plant, wherein inputting a measured value of a steam temperature fed to a steam turbine, a measured value or an estimated value of a rotor temperature of the steam turbine, and a measured value of a casing temperature of the steam turbine, and controlling a steam flow rate so as to increase the steam flow rate fed to the steam turbine when a difference between the steam temperature and the rotor temperature is smaller than a first regulated value and a difference between the rotor temperature and the casing temperature is a second regulated value or larger.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: August 23, 2016
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Eunkyeong Kim, Yasuhiro Yoshida, Takuya Yoshida, Tatsuro Yashiki, Nobuyuki Hokari, Kenichiro Nomura, Kazunori Yamanaka, Fumiyuki Suzuki, Masaaki Tomizawa, Yuichi Takahashi
  • Patent number: 9416790
    Abstract: A method and apparatus controls a compressor, where the compressor inlet gas may contain water and/or non-aqueous liquid. The method includes the steps of measuring temperature at the compressor inlet and/or outlet side, measuring pressure at the compressor inlet and outlet side in order to determine a compressor pressure ratio, measuring fluid mixture density at the compressor inlet and/or outlet side, measuring individual volume fractions of gas, water and non-aqueous liquid at the compressor inlet and/or outlet side, measuring fluid velocity at the compressor inlet and/or outlet side, and determining individual flow rates of gas, water and non-aqueous liquid on the basis of the measured individual volume fractions of gas, water and non aqueous liquid and the fluid velocity at the compressor inlet and/or outlet side.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 16, 2016
    Assignee: STATOIL ASA
    Inventors: Lars Brenne, Jan Høydal
  • Patent number: 9410744
    Abstract: A system for removing molten metal from a vessel is disclosed. The system includes a pump and a refractory casing that houses the pump. As the pump operates it moves molten metal upward through an uptake section of the casing until it reaches an outlet wherein it exits the vessel. The outlet may be attached to a launder. Another system uses a wall to divide a cavity of the chamber into two portions. The wall has an opening and a pump pumps molten metal from a first portion into a second portion until the level in the second portion reaches an outlet and exits the vessel.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 9, 2016
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventor: Paul V. Cooper
  • Patent number: 9394884
    Abstract: A method of operating a wind turbine and a wind turbine employing this method are provided. The method includes measuring an operating temperature in a plurality of components of the wind turbine yielding a plurality of measured operating temperatures. Each measured operating temperature is subtracted from a predefined maximum allowable operating temperature for the corresponding component of the wind turbine thereby yielding a plurality of operating temperature margins. A minimum operating temperature margin among the plurality of operating temperature margins is determined and at least one operating parameter of the wind turbine is set in accordance with the minimum operating temperature margin.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: July 19, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Hans Laurberg
  • Patent number: 9382920
    Abstract: The present application provides a wet gas compression system for a wet gas flow having a number of liquid droplets therein. The wet gas compression system may include a pipe, a compressor in communication with the pipe, and a thermoacoustic resonator in communication with the pipe so as to break up the liquid droplets in the wet gas flow.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 5, 2016
    Assignee: General Electric Company
    Inventors: Christian Vogel, Vittorio Michelassi, Rene de Nazelle
  • Patent number: 9376934
    Abstract: A standard for supporting a turbine rotor and a turbine shell includes a bearing block including a housing enclosing bearing surfaces engageable by the turbine rotor. Turbine shell-arm supports are located on opposite sides of the housing, the turbine shell-arm supports each having a horizontal and one or more vertical surfaces adapted to be engaged by support arms of a turbine shell enclosing at least a portion of the turbine. An internal cooling/heating circuit is arranged to simultaneously cool or heat the bearing block and the turbine shell-arm supports to thereby reduce differential thermal growth characteristics of the turbine rotor and turbine shell.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: June 28, 2016
    Assignee: General Electric Company
    Inventors: Edward Jay Cooper, Peter John Eizenzopf, Xiaoqing Zheng, William Patrick Rusch, Hemanth GS Kumar, Craig Daniel Ivancic, Edward John Sharrow