Method Of Operation Patents (Class 415/1)
  • Patent number: 10036322
    Abstract: Aircraft turbomachine comprising at least one heat exchanger (40) and a gearbox (10) in a V-shaped overall configuration and comprising two lateral arms (20) joined together by a central joining piece, the heat exchanger being mounted between the arms of the gearbox.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: July 31, 2018
    Assignee: SNECMA
    Inventors: Carmen Ancuta, Bruno Albert Beutin
  • Patent number: 10025893
    Abstract: A life consumption of a component in a machine may be predicted. Load data may be received from a load session of the machine. A plurality of parameter sets may be accessed, each associated with a critical point of the component, which point is considered to have critical life consumption. For each critical point, life consumption may be calculated using a life consumption calculation model receiving the load data and the parameter sets as input. By selecting a plurality of critical points on the component, a more complete view is presented of how the different parts of the component are affected by the load session.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: July 17, 2018
    Assignee: GKN Aerospace Sweden AB
    Inventors: Magnus Andersson, Anders Larsson
  • Patent number: 10006439
    Abstract: An energy production plant has a drive train including a differential gear (14) with three drive and power take-off assemblies, a first drive assembly being connected to a drive shaft, a power take-off assembly being connected to a generator (13) and a second drive assembly being connected to a differential drive assembly (16). The differential gear (14) is a planetary gear. Both an emergency brake (4) and a service brake (20) are located in the drive train. In the event of a power failure, grid fault or an emergency shutdown, the service brake (20) is activated such that the torque acting on the rotor (1) supplied by the drive train remains substantially constant for a period of at least 0.5 seconds.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 26, 2018
    Inventor: Gerald Hehenberger
  • Patent number: 10006290
    Abstract: A two-sided turbocharger compressor wheel and a housing forming a diffuser for the compressor. A first side and a second side of the compressor wheel are characterized by different values of a trim and of an annulus area. A first side of the diffuser surrounds the first side of the compressor wheel, and a second side of the diffuser surrounds the second side of the compressor wheel. The first and second sides of the diffuser are characterized by different annulus area ratios. The blades of the first and second sides of the compressor wheel are angularly offset from one another. The compressor wheel is configured for greater flow through the side of the compressor wheel that faces away from a related turbine wheel.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: June 26, 2018
    Assignee: Honeywell International Inc.
    Inventors: Vit Houst, Daniel Turecek, Vaclav Kares, Milan Nejedly, Michal Mokos, Hua Chen, Annie Li, Michael Zhao, Wei Dai, Jose Luis Lazaro Bercianos
  • Patent number: 10006681
    Abstract: A pulse width modulation control is provided for a suction valve located on a suction line. When the flow rate through a refrigerant system needs to be reduced, the suction valve is rapidly cycled from an open position to a closed position. A bypass line connecting compressor discharge to compressor suction with a bypass valve and a discharge valve positioned on the discharge side of the compressor are also provided. When the control closes the suction valve, it also closes the discharge valve to prevent the refrigerant to backflow into the bypass line, and, at the same time, the control opens the bypass valve. Opening of the bypass valve reduces discharge pressure, leading to reduction in compressor power consumption and subsequent operating efficiency gain.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: June 26, 2018
    Assignee: Carrier Corporation
    Inventors: Alexander Lifson, Michael F. Taras
  • Patent number: 10001083
    Abstract: A turbofan aircraft engine having a primary duct (C), including a combustion chamber (BK), a first turbine (HT) disposed downstream of the combustion chamber, a compressor (HC) disposed upstream of the combustion chamber and coupled (W1) to the first turbine, and a second turbine (L) disposed downstream of the first turbine and coupled (W2) via a speed reduction mechanism (G) to a fan (F) for feeding a secondary duct (B) of the turbofan aircraft engine. A square of a ratio of a maximum blade diameter (DF) of the fan to a maximum blade diameter (DL) of the second turbine is at least 3.5, in particular at least 4.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 19, 2018
    Assignee: MTU Aero Engines AG
    Inventors: Klaus Peter Rued, Werner Humhauser, Hermann Klingels, Rudolf Stanka, Eckart Heinrich, Hans-Peter Hackenberg, Stefan Weber, Claus Riegler, Erich Steinhardt, Jochen Gier, Manfred Feldmann, Norbert Huebner, Karl Maar
  • Patent number: 9995381
    Abstract: A torque converter is provided. The torque converter includes a front cover, an impeller shell and a turbine axially movable to frictionally engage the impeller shell such that the turbine forms a piston of a lockup clutch. A first pressure chamber is defined axially between the turbine and the impeller shell. The torque converter further includes a reaction plate positioned axially between the front cover and the turbine. A second pressure chamber is defined axially between the reaction plate and the turbine and a third pressure chamber is defined axially between the reaction plate and the front cover. A method of forming a torque converter is also provided.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: June 12, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Sagar Adari
  • Patent number: 9995277
    Abstract: A method for controlling a wind farm includes: receiving temperature data associated with a plurality of locations along a sound path between the wind farm and a sound immission point from one or more sensors; estimating a propagation characteristic of the sound path based at least in part on the temperature data; predicting a noise level at the sound immission point based at least in part on the propagation characteristic; determining a control signal for one or more wind turbines in the wind farm based at least in part on the noise level; and using the control signal to control the one or more wind turbines.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 12, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Andreas Herrig, Seongkyu Lee, Stefan Kern, Thierry Pascal Maeder, Benoit Philippe Petitjean, Roger Drobietz, Sujan Kumar Pal, Biju Nanukuttan
  • Patent number: 9988930
    Abstract: A method of predicting the condition of a compressor with respect to rotating stall is disclosed. The method comprises the steps of: i) comparing the difference between the largest and smallest values of a variable occurring during a time period with a difference threshold, the variable at any given time being dependent on the compressor exit pressure at that time, and ii) predicting either that the compressor is in rotating stall or that the compressor is not in rotating stall in dependence upon the result of the comparison.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: June 5, 2018
    Assignee: ROLLS-ROYCE plc
    Inventor: David Andre Elysee
  • Patent number: 9970293
    Abstract: A rotating liquid ring rotating casing gas turbine (10) has at least one liquid ring rotating casing (13) having an eccentrically mounted impeller (11) adapted to rotate within a surrounding liquid ring (14) so as to form chambers (15) of successively increasing volume between adjacent vanes of the impeller. A working fluid formed by high pressure gas is injected into the impeller where the chambers are narrow via a fluid inlet (19) within a static axial bore (23) of the impeller so as to rotate the impeller and in so doing the gas expands isentropically. A fluid outlet (20) within the static axial bore of the impeller and fluidly separated from the fluid inlet allows the working fluid to escape at low pressure and low temperature.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: May 15, 2018
    Assignee: Agam Energy Systems Ltd.
    Inventor: Gad Assaf
  • Patent number: 9951793
    Abstract: A compressor housing may include a shroud portion which is axially spaced from an inlet portion and configured to at least partially surround the compressor wheel. The compressor housing may be further configured to include a recirculation cavity which is formed between an exterior surface of the shroud portion and an interior surface of the compressor housing. Furthermore, a recirculation slot may define an airflow pathway between the recirculation cavity and the compressor wheel. Additionally, the compressor housing may include an angled shroud support extending radially through the recirculation cavity from the exterior surface of the shroud portion to the interior surface of the compressor housing. The angled shroud support may be spaced an axial distance away from the recirculation slot to reduce turbulence in the airflow as the airflow moves from the recirculation cavity to the compressor wheel.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 24, 2018
    Assignee: BorgWarner Inc.
    Inventor: Evan Lucas
  • Patent number: 9951461
    Abstract: A washing machine including a cabinet having an inlet port formed at a front panel for laundry insertion thereinto and a door to open or close the inlet port; a tub within the cabinet for storing wash water; a drum in communication with the inlet port, and rotatably provided within the tub; and a detergent dispenser provided below the inlet. The detergent dispenser includes a dispenser case having an opening portion on an upper surface thereof; and at least one of an automatic detergent supply unit and a manual detergent supply unit mounted at the dispenser case. The automatic detergent supply unit includes a container provided with an inlet port and an outlet port for storing liquid detergent; a container receiving portion to receive the container; and a pumping device to selectively discharge liquid detergent discharged from the outlet port of the container by a predetermined amount.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Bosung Seo, Myunghun Im
  • Patent number: 9920647
    Abstract: A seal segment of a shroud arrangement for bounding a hot gas flow path within a gas turbine engine is described. The seal segment is upstream of a second component of the gas turbine engine relative to the hot gas flow path. The seal segment comprises: a plate having: a downstream trailing edge; an inboard side which faces the hot gas flow path when in use; an outboard side; and a first part of a two part seal attached on the outboard side, wherein a second part of the two part seal is attached to the second component such that in an assembled gas turbine engine the two part seal provides an isolation chamber which is in fluid communication with the hot gas flow path via the trailing edge of the plate. A gas turbine having the seal segment is also described.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 20, 2018
    Assignee: ROLLS-ROYCE plc
    Inventors: Simon Lloyd Jones, Rupert John Taylor, Julian Glyn Balsdon
  • Patent number: 9915176
    Abstract: A shroud assembly for a turbine engine includes a shroud having a front side confronting the blades of a turbine and a back side opposite the front side, a hanger configured to couple the shroud to with casing of the turbine, a cooling conduit extending through the hanger to supply a cooling fluid stream to the back side of the shroud, and a particle separator having a through passage forming part of the cooling conduit and a scavenge conduit branching from the through passage.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: March 13, 2018
    Assignee: General Electric Company
    Inventors: Robert Carl Murray, Gregory Michael Laskowski, Corey Bourassa, Byron Andrew Pritchard, Jr., Curtis Walton Stover
  • Patent number: 9912162
    Abstract: A method for controlling a power consumption of a group of a plurality of wind turbines, in particular of a wind park. The wind turbines are prepared for feeding electrical energy into an electrical supply network and an energy supply is offered to the wind turbines for consumption in a recurring cycle, in predetermined order successively, and subject to a total park energy supply available to the wind turbines for consumption, and the respective wind turbine reserves this or a smaller energy supply as a reference power, and subsequent wind turbines in the cycle are provided with, at most, the energy supply available to the wind park, reduced by the reference energy supply already reserved, as energy supply.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: March 6, 2018
    Assignee: Wobben Properties GmbH
    Inventor: Helge Giertz
  • Patent number: 9909673
    Abstract: A fluid supply system for providing a turbomachine fluid to a component of a gas turbine engine is disclosed. The fluid supply system includes a fluid container, a moveable barrier, and an airbag. The moveable barrier fluidly divides the fluid container into a first portion and a second portion. The moveable barrier is moveable between a flow-permitting position and a flow-restricting position. The turbomachine fluid experiences a circulating flow between the component and the second portion of fluid container when the moveable barrier is in the flow-permitting position. The circulating flow is at least partially impeded by the moveable barrier when the moveable barrier is in the flow-restricting position. The airbag is positioned within the first portion of the fluid container. The airbag is selectively operable to move the moveable barrier from the flow-permitting position to the flow-restricting position.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 6, 2018
    Assignee: United Technologies Corporation
    Inventor: JinQuan Xu
  • Patent number: 9889915
    Abstract: A control system to optimize response time of a plurality of engines of a machine is provided. The control system includes a controller configured to determine a first engine group and a second engine group based on data regarding response time characteristics of the plurality of engines, control the first engine group to increase output power of the machine when the output power of the machine is below a predetermined power output threshold, and control the second engine group to increase output power of the machine responsive to the output power of the machine reaching the predetermined power output threshold. A response time of the first engine group is faster than a response time of the second engine group when the output power of the machine is below the predetermined power output threshold.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: February 13, 2018
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Michael A. Snopko, Insu Chang, Vijay Janardhan, Perry D. Converse
  • Patent number: 9856853
    Abstract: A multi-stage radial turbine for usage in energy capture from fluid streams with low to moderate relative speed.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 2, 2018
    Inventor: John French
  • Patent number: 9845807
    Abstract: Provided is a compressor control device configured to control a flow rate of a compressor having a plurality of impellers connected to an outlet port-side flow path in parallel and a flow rate regulation unit configured to regulate a flow rate of each of the impellers, the compressor control device including a pressure detection unit configured to detect a pressure of the outlet port-side flow path, a flow rate detection unit configured to detect the flow rate of each of the impellers, and a control unit configured to output a flow rate regulation command of each of the impellers to the flow rate regulation unit and control the flow rate regulation unit based on the detection result of the pressure detection unit.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: December 19, 2017
    Assignees: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kazuhiro Takeda, Yosuke Nakagawa
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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