Method Of Operation Patents (Class 415/1)
  • Patent number: 11371511
    Abstract: A diagnostic apparatus for a fuel pump diagnoses the state of a fuel pump based on: a correlation between a pump rotational speed that is a rotational speed of the motor and fuel pressure that is pressure of the fuel discharged from the fuel pump; and an initial correlation that is the correlation in an initial actuation period from when the fuel pump is energized for the first time to when a specified period has elapsed.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: June 28, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryosuke Kato
  • Patent number: 11365740
    Abstract: A centrifugal compressor is configured to be used for compressing a low global warming potential (GWP) refrigerant. The centrifugal compressor comprises a casing, an impeller, and a motor for rotating the impeller. The impeller is equipped with blades having a fully nonlinear shape in a quasi-orthogonal cross-sectional view. A hub-side blade angle delta of each of the blades from a hub portion of the first impeller to a mid-span position of the blade varies along a streamwise direction such that the hub-side blade angle delta is largest at a position closer to a leading edge of the first blade than to a trailing edge of the first blade. The casing is configured such that the low global warming potential (GWP) refrigerant enters the impeller from the inlet portion along an axial direction of the impeller and exits the impeller to the outlet portion in a radial direction of the impeller.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 21, 2022
    Assignee: Daikin Industries, Ltd.
    Inventors: Kenichi Masaki, Midori Drake, Jason Busch
  • Patent number: 11365651
    Abstract: An auxiliary power unit that can reduce a flow loss of gas includes: a compressor, a combustion chamber, a turbine, a turbine outlet, and a bypass duct, wherein the turbine outlet comprises an exhaust diffuser and a guide portion, wherein the bypass duct connects the compressor with the guide portion, wherein the guide portion is a channel for an air or gas and is extended radially from an outer circumferential surface of the exhaust diffuser and communicates with an inside of the exhaust diffuser via an opening, and wherein the exhaust diffuser has a first portion adjacent to a front end of the opening and a second portion adjacent to a rear end of the opening, and a radius of the second portion is larger than a radius of the first portion so that there is formed a step difference between the first portion and the second portion.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: June 21, 2022
    Assignee: HANWHA AEROSPACE CO., LTD.
    Inventors: Yong Sang Yoon, Hee Yoon Chung
  • Patent number: 11359496
    Abstract: A component for a gas turbine engine, comprising: first and second walls; a coolant channel defined by the space between the first and second walls; and a first rib extending between the first and second walls to the end of the coolant channel in a coolant flow direction, such that the coolant channel is bifurcated in the coolant flow direction.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: June 14, 2022
    Assignee: ROLLS-ROYCE PLC
    Inventor: Adrian L. Harding
  • Patent number: 11340103
    Abstract: Introduced herein are a dimensionless relationship between a volumetric flow rate, a head and a kinematic viscosity in a pump operation and a method that uses the dimensionless relationship to predict a viscous performance of a pump from water performance characteristics. Using the introduced dimensionless relationship, which is called Ketan's viscous head number, the introduced method determines a viscous head correlation that allows the prediction of the pump performance to be made accurately at any given speed, flow rate and viscosity. The introduced Ketan's viscous head number and method thus allow a prediction of a pump performance in a viscous application to be made from water performance characteristics without physically testing the pump in the viscous application.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 24, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Ketankumar Kantilal Sheth
  • Patent number: 11333025
    Abstract: A turbomachine blade formed of a hollow airfoil having a leading edge and a trailing edge opposed to each other and connected by an intrados wall and an extrados wall each extending along a radial axis of the blade, between a blade root and a blade tip, and including a cooling circuit supplied with air and delivering air jets ensuring through multiple perforations of the cooling circuit an impingement cooling of the inner surface of the airfoil, the cooling circuit includes superimposed cooling channels over the height of the blade, each integrated into the inner surface of the airfoil while matching its contour, the multiple perforations being drilled in the cooling channels terminating in a purge cavity of the airfoil are able to ensure a purge of the air having impinged the inner surface of the airfoil after its passage through the perforations.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 17, 2022
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Baptiste Hallouin, Jean-Maurice Casaux-Bic, Alexandre Montpellaz, Lionel Renault
  • Patent number: 11333175
    Abstract: The subject matter of this specification can be embodied in, among other things, a rotary actuator that includes a first rotary actuator assembly having a first housing, a first mounting assembly radially projecting from a first longitudinal end of the first housing and defining a first axial aperture, and a first output shaft extending into the first axial aperture, a second rotary actuator assembly having a second housing, a second mounting assembly radially projecting from a second longitudinal end of the second housing and defining a second axial aperture, and a second output shaft extending into the second axial aperture, and a bearing assembly having an outer surface in contact with at least one of the first mounting assembly and the second mounting assembly, and an inner surface in contact with at least one of the first rotor assembly and the second rotor assembly.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: May 17, 2022
    Assignee: Woodward, Inc.
    Inventors: Craig D. Mawle, Kris M. Rustman, Pawel A. Sobolewski
  • Patent number: 11300141
    Abstract: An exemplary section of a gas turbine engine according to this disclosure includes, among other things, a first array of airfoils including a first number of airfoils, and a second array of airfoils downstream of the first array of airfoils. The second array includes a second number of airfoils. The second number of airfoils is at least 1.19 times the first number of airfoils thereby providing a predetermined modal.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: April 12, 2022
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: David A. Topol
  • Patent number: 11300133
    Abstract: A turbocharged device including a turbocharger, a first sensor in operable communication with the turbocharger and configured to output a first signal representative of a first attribute of the turbocharger, and a controller in operable communication with the first sensor. Where the controller is configured to calculate a first preliminary surge score based at least in part on the first signal, and calculate a first weighted surge score based at least in part on the first preliminary surge score and a first weighting factor configured to express the relative significance of the first preliminary surge score.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: April 12, 2022
    Assignee: DEERE & COMPANY
    Inventors: Kelly R. Carpenter, Shaune Anders, Mark A. Friedrich
  • Patent number: 11293346
    Abstract: There is provided an air intake system for providing air to a tip clearance control system. The air intake system comprises a ram-air intake having a scoop portion and a body portion. The body portion of the ram-air intake houses a heat exchanger.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: April 5, 2022
    Assignee: ROLLS-ROYCE PLC
    Inventors: Michael I. Elliott, Peter Banister, Michael C. Willmot, Silvia Fernandez Arranz
  • Patent number: 11286793
    Abstract: An airfoil includes an airfoil wall that defines a leading end, a trailing end, and first and second sides joining the leading end and the trailing end. First and second ribs each connect the first and second sides of the airfoil wall. Each of the first and second ribs define a tube portion that circumscribes a rib passage and includes cooling apertures, and first and second connector arms that solely join the tube portion to, respectively, the first and second sides of the airfoil wall. The airfoil wall and the first and second ribs bound a cooling channel there between. The cooling apertures of the first and second ribs open at the cooling channel such that there is a cooling circuit in which the rib passages of the first and second ribs are fluidly connected through the cooling apertures and the cooling channel.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 29, 2022
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Brandon W. Spangler, David R. Pack
  • Patent number: 11286789
    Abstract: An airfoil for a gas turbine engine is disclosed. In various embodiments, the airfoil includes a cooling passage; an outer wall separating a core flow path from the cooling passage; a diffuser in fluid communication with the cooling passage and opening into the core flow path, the diffuser being characterized by a linear ridge on a downstream end of the diffuser; and a thermal barrier coating covering the outer wall and the linear ridge.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: March 29, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Jaime G Ghigliotty, David J Candelori, San Quach
  • Patent number: 11280310
    Abstract: A hydraulic machine has a runner, a guide apparatus, a draft tube, and an apparatus for measuring the water level in the region of the draft tube. The apparatus includes a first pressure measuring device, a second pressure measuring device, and a unit for generating differential pressure values. The pressure measuring devices are arranged in such a way that they may detect the pressures applied inside the draft tube and are respectively connected to the unit. The first pressure measuring device is located above the second pressure measuring device, and the unit is configured to generate the difference between the pressures that the pressure measuring devices detect. There is also described a method for dewatering the runner of such a hydraulic machine.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 22, 2022
    Assignee: Voith Patent GmbH
    Inventors: Otto Kienle, Jochen Straub
  • Patent number: 11274554
    Abstract: A turbomachine having a fan shaft supported by a first bearing positioned downstream of the fan, the first bearing including an outer ring attached to an annular support secured to the stator. The turbomachine includes at least one gas feed duct leading into an enclosure positioned against the disc, the gas feed duct being adapted to be fed at a second end with pressurized gas taken from an airstream of a high-pressure compressor of the turbomachine, so that the gas applies an axial force towards upstream on the disc during some operating phases of the turbomachine. The turbomachine further includes a ferrule imperviously sealing the enclosure.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 15, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Michel Gilbert Roland Brault, Julien Fabien Patrick Becoulet, Amelie Argie Antoinette Chassagne, Didier Jean-Louis Yvon
  • Patent number: 11268524
    Abstract: Method for controlling a plural stage compressor comprising at least a first stage (10), a second stage (20) and a first inter-stage line (12) between the first stage (10) and the second stage (20), comprising the steps of: a—measuring the temperature at the inlet of the compressor, b—measuring the ratio between the outlet pressure (Pout) and the inlet pressure (Pin) of the first stage (10) of the compressor, c—calculating a coefficient (?) based at least on the value of the inlet temperature (Tin) and on the measured pressure ratio (Pout/Pin), d—if the calculated coefficient (?) is in a predetermined range, acting on a control valve (70; 76; 92) mounted in a line (4; 8) supplying the inlet of the first stage (10) of the compressor or in a gas recycle line (74) which opens into the first inter-stage line (12).
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: March 8, 2022
    Assignee: CRYOSTAR SAS
    Inventors: Marina Darry, Cyril Heliot
  • Patent number: 11268870
    Abstract: A haptic signalizing device comprises a number of piezoelectric elements arranged below a device surface such that mechanical deformations caused by the converse piezoelectric effect in the at least one piezoelectric element make the device surface to move such that the device surface follows the piezoelectric element and a driving circuit configured to cause the converse piezoelectric effect on the at least one piezoelectric element by generating an alternating electric field over the piezoelectric element in a bipolar fashion, that is, consecutively in both the same and the opposite direction with respect to the polarization of the piezoelectric element, to make the piezoelectric element to move beyond its initial position consecutively in both directions.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 8, 2022
    Assignee: INSTITUTE OF ENGINEERING THERMOPHYSIC, CHINESE ACADEMY OF SCIENCES
    Inventors: Fan Li, Juan Du, Sichen Wang, Hongwu Zhang, Chaoqun Nie
  • Patent number: 11255338
    Abstract: A turbomachine includes a casing having an inlet end opposite an outlet end along a longitudinal axis of the casing; a shaft assembly provided within the casing, the shaft assembly extending from the inlet end to the outlet end; a plurality of rotating impellers extending radially outward from the shaft assembly; and a communication channel defined between two adjacent impellers to permit a backflow of fluid from a diffuser channel of a downstream impeller to a return channel of an adjacent upstream impeller.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 22, 2022
    Assignee: Elliott Company
    Inventors: Klaus Brun, Vishal Jariwala
  • Patent number: 11248472
    Abstract: A trailing edge cooling feature for a turbine airfoil (10) includes a plurality of pins (22a-l) positioned in an airfoil interior (11) toward the trailing edge 20), each extending from the pressure side (14) to the suction side (16) and further being elongated in a radial direction (R). The pins (22a-l) are arranged in multiple radial rows (A-L) spaced along the chordal axis (30), with the pins (22a-l) in each row (A-L) being interspaced to define coolant passages (24a-l) therebetween. A row of radially spaced apart partition walls (26) are positioned aft of the pins (22a-l). Each partition wall (26) extends from the pressure side (14) to the suction side (16) and is elongated in a generally axial direction, extending along the chordal axis (30) to terminate at the trailing edge (20).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 15, 2022
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventor: Ching-Pang Lee
  • Patent number: 11250349
    Abstract: A system for generating learning data is provided. The system for generating the learning data includes a data incorporating part configured to generate new data by filtering plant data based on a warning condition to incorporate the plant data for one configuration of a plant into existing learning data and a learning data generating part configured to differentiate a weight applied to the new data and the existing learning data, respectively, by comparing the number of the new data and the number of the existing learning data, and generate new learning data by combining the new data with the existing learning data to which the weight is applied.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 15, 2022
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventors: Hyun Sik Kim, Jee Hun Park
  • Patent number: 11220997
    Abstract: A control system for one or more wind turbines comprising an RF receiver used as a method for adaptively controlling the noise mode of operation of a wind turbine. Preferably, this involves multilateration to determine location of RF sources near wind turbindes of a wind turbine park. The RF receivers would detect nearby RF signals in multiple spectrums, in particular mobile telecommunication signals (GSM/UMTS), to identify and localize RF sources near to the wind turbine(s). This information is then be processed to identify which RF sources are likely to be linked to a real person near the wind turbine, and this can be used to adjust the noise mode of the wind turbine accordingly. Thereby maximizing energy production from the wind turbine in absence of nearby people, while keeping noise low when people are nearby.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: January 11, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Martin Qvist
  • Patent number: 11208950
    Abstract: A gas turbine engine includes a compressor section, the compressor section including a variable inlet guide vane which is movable between distinct angles to control the airflow approaching the compressor section. A control is programmed to position the vane at startup of the engine to direct airflow across the compressor section. The engine includes a fan for delivering bypass air into a bypass duct positioned outwardly of a core engine including the compressor section. The position of the vane is configured to direct airflow across the compressor section while an aircraft associated with the gas turbine engine is in the air, and to increase a windmilling speed of the compressor section and the turbine rotors. A method and variable inlet vane are also disclosed.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: December 28, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Eric J. Wehmeier
  • Patent number: 11204025
    Abstract: A multi-stage gas compression system useful at the production site and at central collection points, having an energy efficient and effective intercooler system. The system includes a reciprocating compressor having a plurality of compressor valves and cylinders configured in series to provide staged compression to the natural gas. Coupled with the compressor are an inlet port for receiving natural gas to be compressed, and an outlet port for delivering compressed fluid from the compressor to a discharge line, to the transmission pipeline or storage. Facilitating transmission and intercooling of the natural gas between cylinders are a plurality of pipes, each pipe in close proximity with an intercooler.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 21, 2021
    Assignee: PC3 TECHNOLOGIES, LLC
    Inventor: Matthew Pierce
  • Patent number: 11199104
    Abstract: A disclosed gas turbine engine includes a shroud block including a mounting slot, a blade outer air seal supported within the mounting slot and a seal disposed within the mounting slot providing a seal between the blade outer air seal and the mounting slot. An anti-rotation tab is attached to the shroud block within the mounting slot for constraining movement of the seal within the mounting slot.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 14, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel Barak, Joseph F. Englehart
  • Patent number: 11199202
    Abstract: An acoustic attenuator for a turbomachine and methodology for additively manufacturing the acoustic attenuator are provided. The acoustic attenuator includes an annular body (202) having an outer surface (204) and an inner surface (206). The inner surface of the annular body may define a bore (208) extending along a longitudinal axis (209) of the acoustic attenuator between a first end and a second end of the acoustic attenuator. The annular body may be formed by a plurality of axially-successive cross-sectional layers (e.g., 632, 634, 636) unitized between the first end and the second end of the acoustic attenuator. The plurality of axially-successive cross-sectional layers may be transversely disposed relative to the longitudinal axis of the acoustic attenuator. At least some axially-successive cross-sectional layers of the plurality of axially-successive cross-sectional layers (e.g., 632, 634, 636) defining a pocket (214) disposed between the outer surface and the inner surface of the annular body.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 14, 2021
    Assignee: DRESSER-RAND COMPANY
    Inventors: Byron L. Mohr, Christopher Guerra, Scott MacWilliams
  • Patent number: 11199437
    Abstract: A method to monitor rotor blade vibration using unsteady casing pressure. The method applies a non-intrusive blade vibration monitoring technique by using an array of unsteady pressure sensors which may be flush-mounted in the casing of a compressor. The method comprises using spinning mode theory and temporal-spatial analysis to obtain frequency and nodal diameter information of spinning pressure waves associated with the rotor blade vibration. An example of the compressor can be a multistage axial compressor.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: December 14, 2021
    Assignee: Purdue Research Foundation
    Inventors: Nicole Leanne Key, Yujun Leng, Nicholas Joseph Kormanik, III, Fangyuan Lou, Douglas Ryan Matthews
  • Patent number: 11187249
    Abstract: The present invention provides a silencer, including: a silencer housing having an annular plate-like structure, with an annular mounting chamber formed therein; a silencing pad disposed in the mounting chamber; and a positioning portion disposed on the silencer housing and used for fastening the silencer housing. The silencer according to the embodiment of the present invention has an integrated structure, and can desirably avoid the problem of mounting unflatness in a separated structure. Moreover, the silencing pad therein is disposed to surround the entire silencer, which can provide a sound absorption and noise reduction effect more efficiently.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: November 30, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Vishnu M. Sishtla, Kai Deng, Zhanbo Du
  • Patent number: 11181042
    Abstract: A gas turbine engine has a cycle operability parameter ? in a defined range to achieve improved overall performance, taking into account fan operability and/or bird strike requirements as well as engine efficiency. The defined range of cycle operability parameter ? may be particularly beneficial for gas turbine engines in which the fan is driven by a turbine through a gearbox.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: November 23, 2021
    Assignee: ROLLS-ROYCE plc
    Inventors: Michael O Hales, Craig W Bemment, Stephane M M Baralon, Benjamin J Sellers, Christopher Benson, Benedict R Phelps, Mark J Wilson
  • Patent number: 11181075
    Abstract: A gas turbine engine generates noise during use, and one particularly important flight condition for noise generation is take-off. A gas turbine engine has high efficiency together with low noise, in particular from the bypass flow exiting the engine. The average velocity of the flow at the exit to the bypass duct is in the range of from 200 m/s to 275 m/s at a take-off lateral reference point, defined as the point on a line parallel to and 450 m from the runway centre line where the Effective Perceived Noise Level (EPNL) is a maximum during take-off.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: November 23, 2021
    Assignee: ROLLS-ROYCE PLC
    Inventors: Alastair D Moore, Robert J Telling
  • Patent number: 11174795
    Abstract: An assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a gas turbine engine component that has a first interface portion, and a support that has a mounting portion and a second interface portion, the mounting portion attachable to an engine static structure, a first retention feature that releasably secures the first interface portion to the support in a first installed position of the gas turbine engine component, and a second retention feature dimensioned to secure the first interface portion to the second interface portion in a second installed position of the gas turbine engine component. The first installed position differs from the second installed position, and one of first and second retention features is dimensioned to carry the gas turbine engine component in response to release of another one of the first and second retention features. A method of sealing for a gas turbine engine is also disclosed.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: November 16, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Paul M. Lutjen, Carson A. Roy Thill
  • Patent number: 11174786
    Abstract: The present disclosure generally relates to monolithic superstructures for supporting a rotating shaft coupled to a rotor relative to a stator. An integral superstructure supports the rotating component. The superstructure includes a bearing portion that contacts the shaft. A stator portion, is spaced a critical dimension radially outward, from the rotor. A first annular transfer portion extends axially forward from the bearing to the stator portion. A second annular transfer portion extends axially aft from the stator portion to a mounting flange. The mounting flange connects the superstructure to a frame. The superstructure maintains a critical dimension between the rotor and the stator as the temperature of the superstructure increases. The rotor may be a compressor impeller in a gas turbine engine and the stator may be an aero component that transfers air into a combustor.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: November 16, 2021
    Assignee: General Electric Company
    Inventors: Joshua Tyler Mook, John Alan Manteiga, Christopher Williams
  • Patent number: 11168700
    Abstract: Method for controlling a compressor comprising a last stage (40) and a compressor load controller (90), a set point outlet pressure corresponding to the consumer needed pressure, being given in the load controller (90) comprising the steps of: a—measuring the temperature at the inlet of the last stage (40), b—measuring the ratio between the outlet and inlet pressure of the last stage (40), c—computing a coefficient (?) based on the value of the inlet temperature (Tin) and on the pressure ratio (Pout/Pin), d—if the coefficient (?) is in a predetermined range, changing the set point outlet pressure by a new greater set point outlet pressure until the coefficient (?) computed with the new set point outlet pressure goes out of the predetermined range, and e—adapting the pressure of the fluid coming out of the compressor in a pressure regulator (100) to the consumer needed pressure.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: November 9, 2021
    Assignee: CRYOSTAR SAS
    Inventor: Marina Darry
  • Patent number: 11162425
    Abstract: An assembly fixture for a fan casing of a gas turbine engine wherein the fan casing includes a casing having a flange with a plurality of apertures extending therethrough, comprises a locating structure having a positioning feature that is engageable by a fastener extending through a particular aperture of the plurality of apertures to secure the locating structure to the fan casing. The locating structure further includes a locating feature indicating a particular location of the fan casing when the locating structure is mounted to the fan casing.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: November 2, 2021
    Assignee: Rolls-Royce Corporation
    Inventors: Mark Fleckenstein, Jonathan Rivers, Robert Heeter
  • Patent number: 11162428
    Abstract: A method of starting a gas turbine engine is generally provided. The engine includes a rotor assembly including a compressor rotor and a turbine rotor each coupled to a shaft. The rotor assembly is coupled to a bearing assembly within a casing enabling rotation of the rotor assembly. The method includes determining, based on a lubricant parameter, a period of time within which a rotational speed of the rotor assembly is maintained within a bowed rotor mitigation speed range; rotating the rotor assembly for the period of time within the bowed rotor mitigation speed range; and accelerating the rotor assembly to the combustion speed to ignite a fuel-oxidizer mixture for combustion.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 2, 2021
    Assignee: General Electric Company
    Inventors: Praveen Sharma, Shuvajyoti Ghosh, Narayanan Payyoor, Tod Robert Steen, Carl Lawrence MacMahon
  • Patent number: 11156455
    Abstract: Systems and methods for measuring the clearance gaps between rotating and stationary components of a turbomachine are provided. In one exemplary aspect, flexible and degradable sensing arrays that include a plurality of microwave sensors are utilized to sense the clearance gaps between rotating and stationary components of the turbomachine. Microwaves generated by a microwave generator are transmitted to the sensors. Upon rotation of the rotating components, the rotating components reflect the microwaves transmitted thereto. The microwave sensors capture the transmitted signal and also capture a reflected signal indicative of the transmitted signal reflected by the rotating components. The signals are then forwarded to a computing device for processing. The amplitude difference at the interference fringes between the superimposed signals is representative of the clearance gaps between the rotating and stationary components.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 26, 2021
    Assignee: General Electric Company
    Inventors: Shalini Thimmegowda, K. G. V. Siva Kumar, Bhanu Kishore Battu, Vishwanath Thippeswamy, Richa Awasthi, Srinivasan Swaminathan
  • Patent number: 11149590
    Abstract: An assembly for a gas turbine engine includes ceramic material containing (i.e. ceramic matrix composite) segments and joints that couple the segments together.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: October 19, 2021
    Assignees: Rolls-Royce Corporation, Rolls-Royce High Temperature Composites, Inc., Rolls-Roycfe North American Technologies Inc.
    Inventors: Aaron D. Sippel, Ted J. Freeman, Joseph P. Lamusga, Daniel K. Vetters, Sean E. Landwehr, Bruce E. Varney
  • Patent number: 11131214
    Abstract: A gas turbine engine includes a gearbox receiving input from a core shaft and driving a fan at a lower speed than the core shaft. First and second oil circuits fluidly couple with an inlet and outlet of the gearbox. A third oil circuit fluidly couples with an inlet and outlet of the gearbox. The outlet of the gearbox includes a device directing oil from the gearbox to the first oil circuit, to the second oil circuit and to the third oil circuit when feeding to the gearbox exceeds a predefined oil flow rate, or deviates an operational value corresponding with that oil flow rate, and directs oil from the gearbox to the third oil circuit when feeding to the gearbox is ? the predefined flow rate or is ? a corresponding operational value or is greater than or equal to a further corresponding operational value.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 28, 2021
    Assignees: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, ROLLS-ROYCE PLC
    Inventors: Stefan Menczykalski, Stephan Uhkoetter, John R. Mason, David A. Edwards, Neil Davies, Lynn Hammond, David Williams
  • Patent number: 11131196
    Abstract: A leading-edge shield for a turbomachine blade includes a pressure-side wing and a suction-side wing. Both the pressure-side wing and suction-side wing extend heightwise from a bottom edge to a top edge and lengthwise from the leading edge to a respective rear edge. They are connected together via the leading edge. The rear edge of the suction-side wing presents at least one shaped segment that is shaped in such a manner that the length of the suction-side wing within this segment is shorter than the length of the suction-side wing at each end of this segment.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 28, 2021
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Frédéric Jean-Bernard Pouzadoux, Alain Jacques Michel Bassot, Jérémy Guivarc'h, Jean-Louis Romero, Thibault Ruf
  • Patent number: 11105316
    Abstract: A method of controlling noise produced by a wind turbine is disclosed. The wind turbine comprises one or more component cooling devices, and the method comprises: receiving one or more inputs indicative of noise generated by the one or more component cooling devices; determining the contribution of noise from the one or more component cooling devices to overall turbine noise based upon the one or more inputs; and modifying turbine operation based upon the contribution of cooling device noise to overall turbine noise and based upon turbine noise requirements. A corresponding wind turbine controller is also provided.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 31, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Mranal Gupta, Kaj Dam Madsen
  • Patent number: 11098724
    Abstract: A control system and method utilizing one or more processors that are configured to determine contaminant loading of blades of a turbomachinery compressor based on one or more environmental conditions to which the turbomachinery compressor is exposed and one or more atmospheric air inlet conditions of the turbomachinery compressor. The one or more processors then determine a corrosion contaminant concentration on the blades of the turbomachinery compressor based on the contaminant loading that is determined and determine an upper limit on or a distribution of potential corrosion of the blades of the turbomachinery based on the corrosion contaminant concentration, at least one of the environmental conditions to which the turbomachinery compressor is exposed, and the corrosion contaminant concentration that is determined.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 24, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Guruprasad Sundararajan, Prashanth Pillai, Muralikrishan R., Rebecca Hefner, Bradford Foulkes, Anbarasan Viswanathan, Robert G. Kelly
  • Patent number: 11092067
    Abstract: The present invention relates to a turbine arrangement driven by exhaust gases from a combustion engine. The turbine arrangement comprises a turbine housing, a turbine wheel rotatably arranged in the turbine housing, a first volute section defining a curved flow passage extending about 360° around the periphery of the turbine wheel, and an inner radial passage directing exhaust gases radially inwardly from the flow passage into a swept area of the turbine wheel. The curved flow passage has a cross section area decreasing continuously in the flow direction of the exhaust gases from an initial area at an initial angular position of the curved flow passage to an end angular position. The flow area decreases continuously with a successively reduced value from the initial angular position to an angular position located at least 270° from the initial angular position.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: August 17, 2021
    Assignee: Scania CV AB
    Inventors: Per-Inge Larsson, Sr., Carl Fredriksson, Andreas Millbro, ViChi Luu
  • Patent number: 11085451
    Abstract: An electrical submersible pump (ESP) for use in a high viscosity pumping system includes a pump shaft, at least one rotating impeller including an impeller hub and one or more impeller vanes projecting from the impeller hub. Each of the one or more impeller vanes includes an impeller vane edge, and at least one stationary diffuser positioned below the at least one rotating impeller. A diffuser includes a diffuser hub and a diffuser shroud including a diffuser shroud surface. The impeller vane edge and the diffuser shroud surface are separated only by a clearance gap.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 10, 2021
    Assignee: ALKHORAYEF PETROLEUM COMPANY LIMITED
    Inventors: Woon Yung Lee, Ying Xue, Yun Cai
  • Patent number: 11072355
    Abstract: Various methods and systems are provided for detecting surge of a turbocharger during engine operation. As one example, a system includes an engine coupled to a low pressure turbocharger and a high pressure turbocharger; and a controller with non-transitory instructions stored in memory that when executed during operation of the engine cause the controller to: indicate an occurrence of surge of the high pressure turbocharger in response to a deviation of a modeled speed of the high pressure turbocharger from a measured speed of the high pressure turbocharger by a threshold amount, where the modeled speed tracks the measured speed during non-surge conditions, as engine operating conditions change.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 27, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Michael Mangus, James Robert Mischler, Samuel Lyle Hazen
  • Patent number: 11067007
    Abstract: A gas turbine is equipped with: a low-pressure bleed passage, a medium-pressure bleed passage, and a high-pressure bleed-passage for supplying compressed air bled from respective bleed chambers to a turbine; a low-pressure exhaust passage, a medium-pressure exhaust passage, and a high-pressure exhaust passage for exhausting the compressed air in the respective bleed passages to an exhaust chamber; a low-pressure exhaust valve, a medium-pressure exhaust valve, and a high-pressure exhaust valve provided respectively in the exhaust passages; a low-pressure ejector and a medium-pressure ejector provided in the respective exhaust passages; a driving air supply passage for supplying the compressed air to the ejectors; and a control device configured to open the exhaust valves and supply compressed air from the driving air supply passage to the ejectors when an operating state of a gas turbine is in a region in which rotation stall is generated.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: July 20, 2021
    Assignee: MITSUBISHI POWER, LTD.
    Inventor: Yoshinori Kitaguchi
  • Patent number: 11060501
    Abstract: A wind turbine uses a series of airfoils/vanes that rotate in a vertical plane within a specifically designed housing. The housing has several adjustable surfaces that control airflow patterns within the housing to increase wind velocity through a vortex effect.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 13, 2021
    Inventor: Elihu McMahon
  • Patent number: 11060504
    Abstract: A control system is disclosed. The control system includes a wind turbine, at least one sensor configured to detect at least one property of the wind turbine to generate measurement data, and a controller communicatively coupled to the wind turbine and the at least one sensor. The controller includes at least one processor in communication with at least one memory device. The at least one processor is configured to control, during a training phase, the wind turbine according to at least one test parameter, receive, from the at least one sensor, during the training phase, first measurement data, generate, based on the at least one test parameter and the received first measurement data, a control model, receive, during an operating phase, second measurement data from the at least one sensor, and update the control model continuously based on the second measurement data.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 13, 2021
    Assignee: General Electric Company
    Inventors: Nurali Virani, Scott Charles Evans, Samuel Davoust, Samuel Bryan Shartzer, Dhiraj Arora
  • Patent number: 11041407
    Abstract: A turbocharger includes a turbine with a housing and a rotor for expanding a first medium; a compressor with a housing and a rotor for compressing a second medium utilizing energy extracted in the turbine during expansion of the first medium. A housing surrounds the turbine housing and/or the compressor housing and/or the bearing housing at least in sections, which housing is at least formed from a first housing section and a second housing section, which are connected to one another via screw connections. On the first housing section, shearing force absorption elements are formed or fastened which extend through the second housing section and in the event that shearing forces occur, absorb the shearing forces and thus relieve the screw connections of the shearing forces.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 22, 2021
    Assignee: MAN ENERGY SOLUTIONS SE
    Inventors: Steffen Braun, Frank Griesshaber, Vladimir Hort
  • Patent number: 11035520
    Abstract: A method for controlling a compression system that includes a compressor for compressing gas, a first on-off valve provided on a suction flow passage connected to a suction side of the compressor, a pressure reducing valve provided on a portion of the suction flow passage upstream of the first on-off valve, a second on-off valve provided on a discharge flow passage connected to a discharge side of the compressor, a bypass flow passage connecting the suction flow passage and the discharge flow passage to detour the compressor, and a bypass valve provided on the bypass flow passage, includes closing the first on-off valve while driving the compressor, opening the bypass valve simultaneously with or after the closing of the first on-off valve, closing the second on-off valve after the opening of the bypass valve, and continuing to drive the compressor after the closing of the second on-off valve.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: June 15, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Koichiro Hashimoto, Masashi Takano, Takuro Uba, Takayuki Fukuda, Kenji Nagura
  • Patent number: 11033729
    Abstract: A blood pump assembly comprising a pump casing, at least a portion of which is disposed around one or more blades coupled to a drive cable, and a motor configured to drive the drive cable and the one or more blades rotationally, wherein the drive cable is configured to undergo axial displacement with respect to the pump casing during rotation.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: June 15, 2021
    Assignee: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventors: Mario Scheckel, Joerg Schumacher
  • Patent number: 11035714
    Abstract: Provided is a flow meter capable of logging data more reliably. In this operation, a detection element repeatedly detects a physical quantity related to a flow rate of a fluid flowing in a pipe in a predetermined sampling cycle. Based on physical quantities, a calculation part sequentially calculates the flow rate of the fluid in the pipe. Further, a time measurement part calculates the time. A control storage part is caused to store a logging target, a logging cycle, and logging start definition information. Based on the logging start definition information, a control part automatically starts logging of the logging target in response to startup of the flow meter, and causes a log storage part to store the time measured by the time measurement part and a numerical value of the logging target in association with each other in every logging cycle.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 15, 2021
    Assignee: KEYENCE CORPORATION
    Inventors: Yohei Hashimoto, Satoru Tomoshi, Hiroki Matsui
  • Patent number: 11028711
    Abstract: According to the present invention, part of carbon dioxide heated by a heater is supplied to a dry gas seal portion of a compressor so that a device for pressurizing and heating a seal gas is not additionally required, configuration can be simplified and cost can be reduced. In addition, a seal gas flow path includes a low-temperature seal gas flow path and a high-temperature seal gas flow path so that, in an initial driving mode, carbon dioxide heated by a high-temperature portion of the heater is used as a seal gas and in a turbine-driving mode, carbon dioxide heated by a low-temperature portion of the heater is used as a seal gas and thus a more efficient operation can be performed.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 8, 2021
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jun Hyun Cho, Bong Su Choi, Ho Sang Ra, Hyung Ki Shin, Jong Jae Cho, Beom Joon Lee, Chul Woo Roh, Gil Bong Lee, Young Jin Baik