Method Of Operation Patents (Class 415/1)
  • Patent number: 10690081
    Abstract: Diagnostic systems and methods for a surge valve that selectively bypasses a compressor of a turbocharger of an engine involve receiving, by a controller, a barometric pressure signal indicative of a barometric pressure external to the engine, receiving, by the controller, a throttle inlet pressure (TIP) signal indicative of an air pressure at an inlet of a throttle valve of the engine and downstream from the surge valve and the compressor, and performing, by the controller, a diagnostic technique on the surge valve, the diagnostic technique comprising generating a pressure ratio signal that is a ratio of the TIP signal to the barometric pressure signal, applying a high-pass filter to the pressure ratio signal to obtain a filtered pressure ratio signal, and based on a quantity of detected pulses in the filtered pressure ratio signal that exceed the diagnostic threshold, detecting a malfunction of the surge valve.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: June 23, 2020
    Assignee: FCA US LLC
    Inventors: Scott E Henson, Amarjeet Singh Sahota, Dhaval D Shah
  • Patent number: 10683798
    Abstract: The present invention provides a turbocharger including: a rotating shaft; a turbine wheel; a compressor wheel; a rolling bearing including an inner race fixed to an outer circumferential surface of the rotating shaft, an outer race surrounding the inner race from the outside in a radial direction, and rolling bodies arranged between the inner and outer races and that supports the rotating shaft to be rotatable about an axis; a housing that covers the rolling bearing from an outer circumferential side via a gap between the housing and an outer circumferential surface of the rolling bearing; and a lubricant supply line configured to supply a lubricant into the housing. The turbocharger includes an operating state detection unit that detects an operating state of the turbocharger and a lubricant regulating unit configured to regulate the flow rate of the lubricant flowing through the lubricant supply line depending on the operating state.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 16, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Yoshitomo Noda, Motoki Ebisu, Hiroshi Suzuki
  • Patent number: 10677225
    Abstract: A method of calibrating load sensors of a wind turbine, and a wind turbine for such load sensor calibration, are disclosed. The wind turbine comprises a rotor, a plurality of rotor blades, and a plurality of load sensors associated with the rotor blades. While the rotor is rotating, at least one of the rotor blades is moved from a first calibration position to a second calibration position, and load values from the load sensors are measured. The number of rotor blades being moved is at least one fewer than the number of the plurality of rotor blades. The rotation of the rotor may be during idling of the wind turbine. The movement of the blade(s) may be to change the pitch angle of the blade(s). At least one of the rotor blades not being moved to a calibration position may also be moved, for example to control the rotational speed of the rotor.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: June 9, 2020
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Fabio Caponetti, Kasper Zinck Ostergaard, Dan Hilton
  • Patent number: 10677221
    Abstract: Embodiments of the present invention provide methods and apparatus for increasing turbulent mixing in the wake of at least one wind turbine. Doing so, increases efficiency of a wind turbine located in the wake by transferring energy to the wake that was lost when the wind passed through the upwind turbine. Turbulent mixing may be increased by changing the induction factor for a rotor by, for example, altering the pitch of the blades, the RPMs of the rotor, or the yaw of the nacelle. These techniques may be static or dynamically changing. Further, the different induction factors for a plurality of wind turbines may be synchronized according to a predetermined pattern to further increase turbulent mixing.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 9, 2020
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Carsten Hein Westergaard
  • Patent number: 10669985
    Abstract: Various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy. The turbine system can have a blade assembly. The blade assembly can have a plurality of blades rotatable about an axis. The turbine system can have a concentrator positionable upwind and in front of a return side of the blade assembly. The concentrator can define a convex surface facing the wind. The turbine system can also have a variable concentrator positionable upwind of a push side of the blade assembly. The variable concentrator can be adjustable between a first position and a second position, the variable concentrator being capable of deflecting more wind toward the turbine in the first position than in the second position.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 2, 2020
    Assignee: CALIFORNIA ENERGY & POWER
    Inventors: William DeRuyter, Michael Allawos, Peter L. Coye
  • Patent number: 10669876
    Abstract: There is provided a seal structure to suppress a leak flow of a working fluid from a gap between a rotating structure and a stationary structure, the rotating structure being configured to rotate in a prescribed direction about an axial center line, the stationary structure facing an outer periphery of the rotating structure in a radial direction with the gap inbetween, wherein the stationary structure has a cavity in which the rotating structure is accommodated, an inner peripheral surface of the cavity is provided with a seal fin that extends toward the axial center line and a plurality of stationary-side recesses arranged along a flow direction of the leak flow, and as compared with a first stationary-side recess disposed on a most upstream side, a second stationary-side recess disposed on an immediately downstream side of the first stationary-side recess is set to have a smaller depth dimension.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 2, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kazuyuki Matsumoto, Kenichi Fujikawa
  • Patent number: 10669959
    Abstract: Provided is a control device of a gas turbine including a compressor, a combustor, and a turbine. The control device executes load control of allowing an operation control point for operation control of a gas turbine to vary in response to a load of the gas turbine. The operation of the gas turbine is controlled on the basis of a rated temperature adjustment line for temperature adjustment control of a flue gas temperature at a predetermined load to a rated flue gas temperature at which performance of the gas turbine becomes rated performance, a preceding setting line for setting of the flue gas temperature at the predetermined load to a preceding flue gas temperature that becomes lower in precedence to the rated flue gas temperature, and a limit temperature adjustment line for temperature adjustment control.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 2, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Takashi Sonoda, Akihiko Saito, Yoshifumi Iwasaki, Ryuji Takenaka, Kozo Toyama, Koji Takaoka
  • Patent number: 10666181
    Abstract: The invention provides a system for creating a prescribed vibration profile on a mechanical device comprising a sensor for measuring an operating condition of the mechanical device, a circular force generator for creating a controllable rotating force vector comprising a controllable force magnitude, a controllable force phase and a controllable force frequency, a controller in electronic communication with said sensor and said circular force generator, the controller operably controlling the controllable rotating force vector, wherein the difference between the measured operating condition and a desired operating condition is minimized.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 26, 2020
    Assignee: LORD Corporation
    Inventors: Mark R. Jolly, Russell E. Altieri, Askari Badre-Alam, Jonathan M. Owens, Anthony Gray Hunter, Bradley N. Jones, Brian Carr, Ben Holton, Eric Cady
  • Patent number: 10655599
    Abstract: A wind farm that includes a plurality of wind power generation units. The wind farm further includes a sensing part and a controlling part. The sensing part is configured to sense an external environment risk element. The controlling part is configured to receive a risk signal from the sensing part and to control the wind power generation units in the wind farm.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: May 19, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Sang Woo Woo
  • Patent number: 10648359
    Abstract: The invention relates to a system for controlling variable-setting blades (14) for a turbine engine, which includes at least one control ring (36) mounted rotatably mobile about an annular casing (16) with axis of revolution A, at least one annular row of variable-setting blades (14) extending substantially radially relative to said axis A and connected to said at least one control ring so that a rotation of the ring about the casing rotates the blades about substantially radial axes B, and means (40) for actuating said at least one ring in order to rotate same about the casing, characterised in that said actuation means are connected to said at least one ring by linking means comprising a shaft (52) extending along an axis C which is substantially radial relative to said axis A and mounted rotatably mobile about said axis C on the housing.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: May 12, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Alain Marc Lucien Bromann, Kamel Benderradji, Lilian Yann Dumas, Pamela Dominique Daniele Reichert
  • Patent number: 10648479
    Abstract: A vane assembly for a gas turbine includes a first shroud segment, a second shroud segment, a first inner air seal, and a seal assembly. The first shroud segment has a first end face. The second shroud segment is disposed adjacent to the first shroud segment and has a second end face that faces towards and is spaced apart from the first end face by a gap. The first inner air seal extends into the first shroud segment and defines a first trench. The seal assembly at least partially received within the first trench.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: May 12, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Colin G. Amadon, Anthony R. Bifulco
  • Patent number: 10641122
    Abstract: An arrangement for a gas turbine engine that includes a turbine blade configured to rotate about an axis, a casing radially outside of the turbine blade, and a carrier segment mounted to the casing so as to define a first impingement space therebetween. The carrier segment is positioned radially outside the turbine blade and includes a first impingement carrier wall, a main carrier wall, and a cooling chamber. The first impingement carrier wall is adjacent to and radially inside of the first impingement space, and the first impingement carrier wall includes a first aperture. The main carrier wall is radially inside of the first impingement carrier wall. The cooling chamber is radially inside of the main carrier wall. Additionally, an intermediate chamber is disposed radially between the cooling chamber and the first impingement space. A second aperture is configured to allow ingress of air into the intermediate chamber.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 5, 2020
    Assignee: ROLLS-ROYCE PLC
    Inventor: Leo V. Lewis
  • Patent number: 10634237
    Abstract: A gear system for a turbofan engine assembly includes a sun gear rotatable about an engine centerline, a non-rotatable ring gear, a rotating carrier that drives a fan, and a plurality of planet gears intermeshed between the sun gear and the ring gear. Each of the plurality of planet gears supported on rolling element bearings fit into the carrier. Each of the plurality of planet gears includes an inner cavity and a lubricant passage directed at the rolling element bearings. The carrier includes an outer scoop that receives lubricant from an outer fixed lubricant jet and feeds lubricant into the inner cavity and through the lubricant passage to spray lubricant on to the rolling element bearings. A geared turbofan engine assembly is also disclosed.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: April 28, 2020
    Assignee: United Technologies Corporation
    Inventor: William G. Sheridan
  • Patent number: 10619462
    Abstract: A gas compressor system is provided to operate at a well site and to inject a compressible fluid into a wellbore in support of a gas-lift operation. Methods and systems are provided that allow for the automated individual control of discharge temperatures from coolers for gas injection, in real time, wherein the temperature control points of the first and/or second stage cooler discharges are automatically controlled by a process controller in order to push heat produced by adiabatic compression to a third or final compression stage. In this way, discharge temperatures at the final stage are elevated to maintain injection gaseous mixtures in vapor phase.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 14, 2020
    Assignee: Encline Artificial Lift Technologies LLC
    Inventor: William G. Elmer
  • Patent number: 10612390
    Abstract: A gas turbine engine component comprises a body having a leading edge, a trailing edge, and a radial span. One internal channel in the body provides an upstream supply pressure. Another internal channel in body receives the upstream supply pressure and provides a downstream supply pressure. At least one axial rib separates an internal area adjacent to the trailing edge into a plurality of individual cavities. At least one pressure regulating feature is located at an entrance to at least one individual cavity entrance to control downstream supply pressure to the trailing edge. Exits formed in the trailing edge communicate with an exit pressure. The rib and pressure regulating features cooperate such that the downstream supply pressure mimics the exit pressure along the radial span. A method of manufacturing a gas turbine engine component and a method of controlling flow in a gas turbine engine component are also disclosed.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 7, 2020
    Assignee: United Technologies Corporation
    Inventors: Brandon W. Spangler, Carey Clum, Matthew A. Devore
  • Patent number: 10605259
    Abstract: An airfoil of a turbine engine includes pressure and suction sides and extends in a radial direction from a 0% span position to a 100% span position. The airfoil has a relationship between a leading edge angle and span position that defines a curve with a leading edge angle of less than 40° at 100% span.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 31, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Edward J. Gallagher, Lisa I. Brilliant, Joseph C. Straccia, Stanley J. Balamucki, Mark A. Stephens, Kate Hudon
  • Patent number: 10605120
    Abstract: A turbine ring assembly comprises a plurality of ring sectors made of ceramic matrix composite material forming a turbine ring and a ring support structure including first and second annular flanges. In section, each ring sector presents a K-shape having an annular base-forming portion with an inside face defining the inside face of the turbine ring and an outside face with first and second S-shaped tabs projecting therefrom. The inside faces of the first and second tabs of each ring sector rest on holder elements secured to the first and second annular flanges, while the outside faces of the first and second tabs are in contact with clamping elements secured to the ring support structure.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: March 31, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Lucien Henri Jacques Quennehen, Sebastien Serge Francis Congratel, Clement Jean Pierre Duffau, Nicolas Paul Tableau
  • Patent number: 10605202
    Abstract: A gas turbine engine includes a bypass flow passage and a core flow passage. The bypass flow passage defines a bypass ratio in a range of approximately 8.5 to 13.5. A fan is located upstream of the bypass flow passage. The bypass flow passage includes an inlet and an outlet that define a design fan pressure ratio of approximately 1.3 to 1.55. A first, inner shaft and a second, outer shaft are concentric. A first turbine is coupled with the first shaft, and the first shaft is coupled with the fan. The fan includes a hub and a row of fan blades that extend from the hub. The row includes a number of the fan blades, the number (N) being 18, a solidity value (R) at tips of the fan blades that is from 1.0 to 1.1, and a ratio of N/R that is from 16.4 to 18.0.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 31, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Edward J. Gallagher, Byron R. Monzon
  • Patent number: 10598145
    Abstract: This method allows determining the operating point of a hydraulic machine in a considered operating range, such as turbine mode, and comprises steps that consist in a) determining two coordinates (N?11, T?11) of a first series of potential operating points of the hydraulic machine for the orientation affected to guide vanes of the machine, b) measuring the rotation speed of the machine, and c) determining the torque exerted by water flow on the machine. The method further includes steps consisting in d) calculating two coordinates (N11, T11) of a second series of potential operating points of the machine in function of the rotation speed (N) measured at step b) and the torque determined at step c), and e) deducing the two coordinates (N11_real, T11_real) of operating point that belongs both to the first and the second series in the said considered operating range of the machine.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: March 24, 2020
    Assignee: GE Renewable Technologies
    Inventors: Quentin Alloin, Nicolas Perrissin-Fabert, Renaud Guillaume
  • Patent number: 10584645
    Abstract: With regard to a load running system that comprises a plurality of compressors that compress a fuel gas and supply the compressed fuel gas to a load apparatus, this compressor control device comprises: a feedforward control signal generation unit that, on the basis of a value that is found by dividing the total load of the load apparatus by the number of running compressors, generates a first control signal that is for controlling the amount of fuel gas supplied by the compressors; and a control unit that, on the basis of the first control signal, controls the amount of fuel gas supplied by the compressors.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 10, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yosuke Nakagawa, Naoto Yonemura, Kazuhiro Jahami
  • Patent number: 10578080
    Abstract: A method for controlling a wind turbine is provided. The wind turbine is a turbine of the type that is operated to perform a control function that controls the amount of power produced based upon measures of fatigue life consumption of one or more turbine components. The method comprises initialising the control function by: over-riding or bypassing (405) the control function for a predetermined period of time, such that power produced by the wind turbine is not altered based upon the determined measures of fatigue life consumption; during the predetermined period of time, operating (407) one or more fatigue lifetime usage estimation algorithms, to determine a measure of the fatigue life consumed by each of the one or more turbine components; and after the predetermined period of time has elapsed, activating (409) the control function and using, in the control function, at least one of the measures of fatigue life consumption determined during the predetermined period of time.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: March 3, 2020
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Chris Spruce
  • Patent number: 10577967
    Abstract: This disclosure provides assemblies for providing a bumper between an exhaust frame and a bearing housing in a gas turbine. The bumper or bumpers have an attachment surface for attaching to the exhaust frame and a bearing contact surface that engages the bearing housing during a blade out event.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: March 3, 2020
    Assignee: General Electric Company
    Inventors: Tomasz Maranski, Gregory Crum, Karol Filip Leszczynski, Daniel Ozga
  • Patent number: 10570915
    Abstract: A compressor airfoil of a turbine engine having a geared architecture includes pressure and suction sides that extend in a radial direction from a 0% span position to a 100% span position. The airfoil has a relationship between a camber angle and span position that defines a curve with a decreasing camber angle from 80% span to 100% span.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: February 25, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Edward J. Gallagher, Lisa I. Brilliant, Joseph C. Straccia, Stanley J. Balamucki, Mark A. Stephens, Kate Hudon
  • Patent number: 10563650
    Abstract: Provided is a compressor capable of calculating the correct time remaining before maintenance. The compressor is provided with: a compressor body that compresses fluid; a motor that drives the compressor body; a temperature sensor that detects the temperature of the compressor; a pressure sensor that detects the pressure of the compressed fluid outputted from the compressor body; and a calculation unit that calculates the time remaining before maintenance for the compressor body, using the temperature of the compressor and the pressure of the compressed fluid assigned with respective predetermined weights. The calculation unit changes the weighting of the temperature according to the pressure of the compressed fluid or the operation rate of the compressor body.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: February 18, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto, Shumpei Yamazaki
  • Patent number: 10563515
    Abstract: A turbine impeller includes: a hub portion coupled to an end of a rotational shaft; a plurality of main blades disposed at intervals on a peripheral surface of the hub portion; and a short blade disposed between two adjacent main blades among the plurality of main blades. An inter-blade flow channel is formed between the two adjacent main blades so that a fluid flows through the inter-blade flow channel from an outer side toward an inner side of the turbine impeller in a radial direction. In a meridional plane, a hub-side end of a leading edge of the short blade is disposed on an inner side, in the radial direction, of a hub-side end of a leading edge of the main blade.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 18, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takao Yokoyama, Seiichi Ibaraki, Toyotaka Yoshida
  • Patent number: 10557368
    Abstract: An active clearance control system of a gas turbine engine includes a radially adjustable blade outer air seal system movable between a radially contracted Blade Outer Air Seal (BOAS) position that defines a first air volume and a radially expanded Blade Outer Air Seal (BOAS) position that defines a second air volume, the second air volume different than the first air volume. An accumulator system accommodate a difference in air volume between the first air volume and the second air volume.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: February 11, 2020
    Assignee: United Technologies Corporation
    Inventors: Ken F. Blaney, Todd M. LaPierre
  • Patent number: 10549625
    Abstract: A method for controlling an active air flap (AAF) based on an aerodynamic force gain may include an AAF optimization cooling-related mode in which the AAF is configured to be controlled to operate in an AAF open state or an AAF close state to match a detected ambient temperature and a detected vehicle speed when an operation of a heating device is detected by a controller during vehicle traveling.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: February 4, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong-Yeop Woo, Kyu-Beom Ko
  • Patent number: 10550716
    Abstract: A control device is configured to control a gas turbine that is configured to compress a suctioned air with a compressor to obtain compressed air, mix a fuel supplied from a combustor with the compressed air to burn the fuel and the compressed air to generate a combustion gas, operate a turbine with the combustion gas to rotate a rotor, and discharge the combustion gas that has operated the turbine as a flue gas. The compressor includes an inlet guide vane which is capable of adjusting a degree of opening and is on an air-suction side, and the control device is configured to execute temperature adjustment control to control the degree of opening of the inlet guide vane along a temperature adjustment line indicating an upper limit temperature of a flue gas temperature defined according to a load of the gas turbine.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: February 4, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Akihiko Saito, Takashi Sonoda, Yoshifumi Iwasaki, Koji Takaoka, Ryuji Takenaka, Kozo Toyama
  • Patent number: 10544774
    Abstract: A runner for a hydraulic turbine or pump has a plurality of blades. Each of the blades is defined by a pressure surface, an oppositely facing suction surface, a leading edge and a spaced-apart trailing edge. At least one of the blades has a device for supplying a flow of oxygen containing gas to the trailing edge of the same blade. The device includes at least two separate gas inlet apertures and at least two separate gas passages, each extending from one of the separate gas inlet apertures to a separate group of orifices in the trailing edge of the same blade. Each of the separate group of orifices has at least one orifice to admit gas out of the corresponding separate gas passage to the passing fluid during the operation of the runner.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: January 28, 2020
    Assignee: Voith Patent GmbH
    Inventors: Manfred Stummer, Stuart Coulson, Jason Foust
  • Patent number: 10539362
    Abstract: A mixture of hydrocarbons in vapour phase is passed through a feed scrubber. Feed scrubber vapour discharged from the feed scrubber is passed to a compression suction scrubber, and a vaporous compressor feed stream from the compression suction scrubber is compressed in a compressor train. A compressed vaporous discharge stream from the train of compressors is de-superheated, and at least a portion of the de-superheated stream is passed to a condenser, wherein this portion of the de-superheated stream is at least partly condensed to form a pressurized and at least partially condensed mixture of hydrocarbons. A recycle portion is split off from the de-superheated hydrocarbon stream, and a recycle flow is established to the compressor train of via a surge recycle separator drum and the compression suction scrubber. Liquid constituents removed and drained from the recycle portion in the surge recycle separator drum are fed to the feed scrubber.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 21, 2020
    Assignee: SHELL OIL COMPANY
    Inventor: Brian Reza Shaied Shehdjiet Imamkhan
  • Patent number: 10533425
    Abstract: A vane assembly for a gas turbine engine includes an inner diameter platform, an outer diameter platform, and an airfoil shaped vane spanning from the inner diameter platform to the outer diameter platform. The airfoil shaped vane includes an internal cooling passage having a first inlet at the inner diameter platform and a second inlet at the outer diameter platform. An outer diameter platform cover is disposed radially outward of the outer diameter platform, relative to a radius of an arc defined by an arc of the outer diameter platform. The outer diameter platform includes at least one coolant cover inlet hole, the at least one coolant cover inlet hole being aligned with a corresponding second inlet.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: January 14, 2020
    Assignee: United Technologies Corporation
    Inventors: Shawn M. McMahon, Christopher Whitfield, Nicholas M. LoRicco, Steven Bruce Gautschi, Vincent E. Simms, Justin M. Aniello, Thomas Allwood, Richard M. Salzillo, Jeffery Scott Hembree, Sr.
  • Patent number: 10533447
    Abstract: A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a turbine section including a fan drive turbine, a geared architecture driven by the fan drive turbine, and a fan driven by the fan drive turbine via the geared architecture. At least one stage of the turbine section includes an array of rotatable blades and an array of vanes. A ratio of the number of vanes to the number blades is greater than or equal to about 1.55. A mechanical tip rotational Mach number of the blades is configured to be greater than or equal to about 0.5 at an approach speed.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: January 14, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Bruce L. Morin, David A. Topol, Detlef Korte
  • Patent number: 10502195
    Abstract: The present disclosure is directed to a clamping apparatus for securing a main bearing of a wind turbine. The clamping apparatus includes a clamp member configured for securement to a seal ring arranged with the main bearing, at least one clamping fastener configured through the clamp member, and at least one jacking fastener configured through the clamp member. Thus, the clamping fastener is configured to tighten the clamp member around the seal ring, whereas the jacking fastener is configured to push against the main bearing when tightened so as to maintain the main bearing in place during and installation and/or repair procedure.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: December 10, 2019
    Assignee: General Electric Company
    Inventors: Gregory Clarence Thomas, Hunter Ryan Anderson, Darrick Adam Vanderwalker, Waylon James Esser, Guido van Duelmen, Andreas Thal
  • Patent number: 10494947
    Abstract: A steam turbine include a steam chest casing that is provided with a plurality of nozzle openings along a circumferential direction; a partition wall to partition the steam chest casing into the main steam chest and a sub-steam chest with smaller capacity than the main steam chest; a main steam pipe that supplies steam to the main steam chest; a steam chest connection pipe that distributes part of the steam, which is supplied to the main steam chest, to the sub-steam chest; a steam chest connection valve; a pressure gauge that measures the pressure of the steam flowing in the main steam pipe; and a control unit that closes the steam chest connection valve when the measured pressure is less than more than or equal to a predetermined threshold value, and opens the steam chest connection valve when the measured pressure is less than the predetermined threshold value.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 3, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kenichi Murakami, Mitsuyoshi Tsuchiya, Mamoru Odagawa
  • Patent number: 10487841
    Abstract: A compressor control system includes: a compressor; an inlet guide vane (IGV) arranged at an inlet of the compressor, and configured to adjust opening of the inlet based on a supplementary surge control signal or a performance control signal; an anti-surge valve (ASV) connected to an outlet of the compressor, and configured to prevent a surge based on a surge control signal; and a controller configured to generate the surge control signal for controlling the ASV when an operating point enters a surge control range, generate the supplementary surge control signal for controlling the IGV in an anti-surge mode when the operating point enters a supplementary surge control range set between the surge control range and a surge range, and generate the performance control signal for controlling the IGV in a performance mode until the operating point enters the surge control range.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 26, 2019
    Assignee: HANWHA AEROSPACE CO., LTD.
    Inventors: In Hwan Bae, Joo Sang Eom
  • Patent number: 10480341
    Abstract: The invention relates to a run-in coating (10) for an outer air seal of a turbomachine, especially of an aero engine, comprising a substrate (12) of segmented form which carries a honeycomb structure (14) with an run-in surface (15) to face rotor blades of a rotor of the turbomachine, wherein a radial thickness of the honeycomb structure (14) varies in the circumferential direction. The invention furthermore relates to an outer air seal for a turbomachine and also to a turbomachine with an outer air seal.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 19, 2019
    Assignee: MTU AERO ENGINES AG
    Inventors: Petra Kufner, Walter Gieg, Rudolf Stanka, René Schneider, Norman Cleesattel, Joachim Lorenz
  • Patent number: 10480521
    Abstract: Methods and apparatus are disclosed for detecting and preventing compressor surge. A transmitter determines a derivative process value of a compressor. A controller obtains the derivative process value from the transmitter. The transmitter is separate from the controller. The controller compares the derivative process value to a threshold value. The threshold value is indicative of the initiation of a surge event in the compressor. In response to determining that the derivative process value fails to satisfy the threshold value, the controller actuates a valve operatively coupled to the compressor to enable an additional derivative process value of the compressor determined by the transmitter to satisfy the threshold value.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: November 19, 2019
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Joseph H. Sharpe, Jr., Mikhail Ilchenko, Gary Hawkins, George William Thackston, III, Marcos Peluso
  • Patent number: 10480399
    Abstract: An object is to provide a structure and a method of joining a nozzle vane and a lever, and a variable geometry turbocharger, capable of reducing breakage of a welded part between a shaft portion of the nozzle vane and the lever during usage of the same by reducing generation of a hot crack in weld metal at the welded part. A joint structure includes: a nozzle vane 2 disposed in an exhaust passage for guiding exhaust gas to a turbine wheel 34 of a variable geometry turbocharger 500, and including a shaft portion 2a; and a lever 1 including a fitting surface 42a fitted with a peripheral surface 72 on one end side of the shaft portion, for transmitting torque to the shaft portion to adjust a vane angle of the nozzle vane. Weld metal 50 at a welded part 40 between the lever and the nozzle vane is formed so that a center position 64 of the weld metal is disposed inside a position 17 of the fitting surface with respect to a radial direction of the shaft portion.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 19, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takashi Arai, Hitomi Otsubo
  • Patent number: 10472970
    Abstract: A component according to an exemplary aspect of the present disclosure includes, among other things, a wall and at least one rib that protrudes from the wall and extends to a rib end, the rib end having a curved transition portion near a location where the at least one rib meets the wall.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: November 12, 2019
    Assignee: United Technologies Corporation
    Inventors: Alex J. Simpson, David A. Niezelski
  • Patent number: 10473109
    Abstract: The compressor system comprises a compressor having first compressor stage and a second compressor stage in a back-to-back arrangement. A first gas flow is provided at the suction side of the compressor. A seal arrangement is provided between the first compressor stage and the second compressor stage. A side stream line is in fluid communication with the suction side of the second compressor stage. A side stream valve on the side stream line and a side stream controller are provided, for adjusting the flow of the second gas. An antisurge arrangement comprised of a bypass line and an antisurge valve is arranged at the first compressor stage for preventing surge of the first compressor stage. The side stream controller is configured for reducing the flow of the second gas when an alteration of the pressure ratio across the first compress stag is detected.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: November 12, 2019
    Assignee: Nuovo Pignone Srl
    Inventors: Lorenzo Gallinelli, David Rossi, Laurence Casali
  • Patent number: 10473037
    Abstract: A bleed air cooling system for a gas turbine engine includes one or more bleed flowpaths operably connected to a bleed outlet to divert a bleed airflow from a gas turbine engine flowpath. Each bleed flowpath includes two or more bleed ports to divert a bleed airflow from a gas turbine engine flowpath, a bleed duct configured to convey the bleed airflow from the two or more bleed ports to the bleed outlet, and a delta-pressure valve located at each bleed port of the two or more bleed ports configured to move between an opened position and a closed position in response to a difference between a first pressure upstream of the delta-pressure valve and a second pressure downstream of the delta pressure valve. The bleed airflow is selectably conveyed through a bleed port of the two or more bleed ports depending on the operation of the associated delta-pressure valve.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: November 12, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Jonathan Ortiz, William K. Ackermann, Matthew P. Forcier
  • Patent number: 10458422
    Abstract: A turbine engine includes two rotary shafts and a lubrication unit. The lubrication unit has at least one pump which a casing inside of which a rotor is mounted and driven by one of the rotary shafts. The pump casing is rotated by the other rotary shaft such that the actuation of the pump depends on the difference between rotational speeds of the shafts. The shafts are a drive shaft and a fan shaft, respectively, wherein the fan shaft is driven by the drive shaft by means of a reduction gear which is lubricated by the lubrication unit. The reduction gear is annular and the pump passes axially therethrough.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 29, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Benoît Jean Henri Gomanne, Michel Gilbert Roland Brault, Thomas Chauveau, Bellal Waissi
  • Patent number: 10451052
    Abstract: The present disclosure describes a load/unload control method for a compressor system with a rotating compressor connected to a pressure vessel. In the method, the present operating state can be monitored on the basis of a monitored/estimated electrical quantity of the compressor system. The method comprises an identification phase and an operational phase. In the identification phase, the compressor is operated at a constant rotational speed to generate two known pressures to the pressure vessel. At least one electrical quantity is monitored, and values of the electrical quantity corresponding to the pressure limits are stored. In the operational phase, reaching of a pressure limit may then be detected by comparing the present value of the monitored electrical quantity to the stored values.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: October 22, 2019
    Assignee: ABB Schweiz AG
    Inventors: Juha Saukko, Markku Lyyjynen, Jukka Tolvanen
  • Patent number: 10451092
    Abstract: The present disclosure relates to a compressor control system that detects the pressure (or flow rate) at the rear end of a compressor and performs proportional control in mechanical manner to uniformly control the pressure (or flow rate) of the compressor while preventing a compressor suction valve from being fully closed. To this end, the present disclosure includes a cylinder including a first piston and a second piston therein, a pressure control valve which supplies fluid to operate the second piston to an area above the second piston, a control valve which supplies fluid to operate the first piston to an area above the first piston, and supplies fluid to the pressure control valve, a fluid condition transmission unit which detects fluid condition (pressure or flow rate) at a rear end of a compressor, and converts the detected fluid condition value to an electrical signal and outputs it.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: October 22, 2019
    Assignee: KYUNGWON MACHINERY CO., LTD.
    Inventors: Kyu Mun Shim, In Hyun Choi
  • Patent number: 10451045
    Abstract: A wind turbine includes a hub configured to rotate about an axis at a first rotation speed and at least one blade coupled to the hub. The wind turbine also includes a sensor assembly configured to detect at least one characteristic of wind flowing through the wind turbine. The sensor assembly is mounted to the hub. The sensor assembly includes a laser device configured to emit a laser beam and at least one optical element configured to direct the laser beam. The sensor assembly also includes a non-motorized mechanism configured to rotate the at least one optical element at a second rotation speed when the hub rotates at the first rotation speed. The second rotation speed is greater than the first rotation speed.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: October 22, 2019
    Assignee: General Electric Company
    Inventors: Samuel Davoust, Andreas Herrig, Albert Fisas Camanes
  • Patent number: 10443414
    Abstract: A turbine casing includes: a shroud of a cylindrical shape defining an operational flow path between the shroud and a hub of a turbine rotor; a scroll outer peripheral wall continuing from an end side of the shroud and extending along a circumferential direction of the shroud; and a partition wall disposed inside the scroll outer peripheral wall and dividing an inside of the scroll outer peripheral wall into a first scroll flow path and a second scroll flow path disposed adjacent to each other in an axial direction of the shroud. The shroud, the scroll outer peripheral wall, and the partition wall are formed integrally by casting. The partition wall has a widening section which partially increases a communication area between at least two of the first scroll flow path, the second scroll flow path, and the operational flow path, in the circumferential direction of the shroud.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: October 15, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takao Yokoyama, Yoji Akiyama
  • Patent number: 10436058
    Abstract: A turbine control unit and method for controlling a turbine, in particular for controlling the start-up of a turbine, the unit being designed as a cascade controller having a master controller and an inner controller, the master controller being a thermal stress controller for the components subjected to thermal stress.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 8, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Martin Bennauer, Matthias Heue, Martin Ophey, Christoph Schindler
  • Patent number: 10422251
    Abstract: An automation system that determines the theoretical maximum rate of cooling of a steam turbine and operates a steam generator in such a way that the thermal energy of the steam does not exceed nor drop below the predefined rate of cooling.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: September 24, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jan Greis, Oliver Stawarski
  • Patent number: 10378503
    Abstract: A wind turbine blade device includes a rotating unit including a blade module concentrically connected to a rotating shaft thereof and having a plurality of radially curved channels each having inlet and outlet ends. The inlet and outlet ends of the radially curved channels are configured to respectively permit flow of the flow body into and out thereof. An outer tube includes a tube body surrounding the rotating unit, and a plurality of rib plates provided in the tube body. The outlet end of each radially curved channel corresponds to one of the rib plates, and each radially curved channel forms an included angle with a corresponding rib plate such that the flow body flowing out of the outlet end can impact upon the corresponding rib plate.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: August 13, 2019
    Inventor: Kuo-Chang Huang
  • Patent number: 10371161
    Abstract: A centrifugal fan includes a frame and an impeller. The impeller is disposed within the frame. The impeller includes a hub, a first blade group and a second blade group. The hub includes a center part, an inclined part and a connection part. The first blade group is connected with the connection part of the hub. The second blade group is disposed on the inclined part of the hub. There is a first distance between the second blade group and the first blade group. There is a second distance between the second blade group and the center part of the hub.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: August 6, 2019
    Assignee: DELTA ELECTRONICS, INC
    Inventors: Wei-I Ling, Chih-Chung Chen, Meng-Yu Chen