With Inspection, Signaling, Indicating Or Measuring Means Patents (Class 415/118)
  • Patent number: 10113937
    Abstract: A system and method for monitoring a gap size of a gap between a seal holder and an adjacent disk in a compressor section of a gas turbine. An imaging device is used to generate at least one image of the gap, wherein a calibration image of the gap is generated when the gas turbine is in a cold state to provide a calibration gap size. An operational image of the gap is also generated when the gas turbine is in operation to provide an operational gap size. In addition, an enclosure that houses the imaging device is attached to an access port formed in the compressor section to provide a view of the gap for the imaging device. Wear is detected in a hook section of the compressor section when the operational gap size is less than the calibration gap size.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: October 30, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Arun Meenakshinatha Iyer, Dustin C. Boudin, Clifford Hatcher, Jr.
  • Patent number: 10101020
    Abstract: A uniformly luminous fan shield structure includes a light-transparent cover (10) and a light emitting diode (LED) module (30). The light-transparent cover (10) includes a central area (11) and a ring (12) around the central area (11). The ring (12) includes a groove (121). A side surface of the groove (121) includes light guide structures (125). The LED module (30) is accommodated in the groove (121). The LED module (30) includes LEDs (32), and each LED (32) illuminates toward each light guide structure (125) and the central area (11), so as to achieve uniform luminosity of the light-transparent cover (10).
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 16, 2018
    Assignee: SILVERSTONE TECHNOLOGY CO., LTD.
    Inventor: Wei-Cheng Hung
  • Patent number: 10082286
    Abstract: A cooling fan having a light-emitting effect comprises a frame body, a light-emitting assembly and a fan blade assembly, wherein the frame body has a base and an upper cover. The light-emitting assembly is mounted on the frame body and includes a circuit board, a plurality of light-emitting elements capable of emitting a light respectively and a light guide plate. The light guide plate includes a plurality of light guide strips which correspond to each of the plurality of light-emitting elements respectively to guide the light, and a light diffusion portion which is connected with the plurality of light guide strips. The light diffusion portion includes a first diffusion portion in a position corresponding to each of the plurality of light guide strips. The fan blade assembly is mounted in the frame body, such that the light passes through the first diffusion portions and then forms a diffused light.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: September 25, 2018
    Assignee: DYNAEON INDUSTRIAL CO., LTD.
    Inventor: Taichi Huang
  • Patent number: 10082038
    Abstract: The invention relates to an axial turbomachine compressor outer casing. The casing comprises a sealing device collaborating with a row of rotor blades. The casing comprises a wall with an annular groove in which the sealing device is housed. The sealing device comprises a segmented outer shroud and a plurality of piezoelectric actuators moving the shroud radially in the groove so as to open or close the functional clearance. The invention also proposes a method for controlling a sealing device for a turbojet engine, the method comprising a step of measuring the altitude and a step of adjusting a clearance according to the altitude.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: September 25, 2018
    Assignee: Safran Aero Boosters S.A.
    Inventors: Jean-Francois Cortequisse, Philippe Minot
  • Patent number: 10073002
    Abstract: Systems and methods for monitoring aerostructures are provided. In various embodiments, a method for monitoring an aerostructure may include: receiving a signal from a pressure sensor, the pressure sensor located downstream from the aerostructure; performing a time frequency analysis on the signal to calculate a power level over a range of frequencies; monitoring the power level over the range of frequencies; and determining a susceptibility to a flutter condition based on the monitoring the power level.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: September 11, 2018
    Assignee: United Technologies Corporation
    Inventor: Troy Shannon Prince
  • Patent number: 10041413
    Abstract: In one aspect the present subject matter is directed to an igniter assembly for a gas turbine engine. The igniter assembly includes an outer housing and an igniter tube that extends radially through the outer housing. The igniter tube includes an ignition tip, a nut coupled to the igniter tube and disposed at least partially within the outer housing and a biasing member that extends between an inner surface of a top portion of the outer housing and the nut. A flexible seal extends radially inwardly from a bottom side of the nut and a retention collar is coupled to the igniter tube proximate to the ignition tip. The retention collar is configured to couple to a mounting ring connected to an outer liner of a combustor for the gas turbine engine.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: August 7, 2018
    Assignee: General Electric Company
    Inventors: Fei Huang, Christophe J. Day
  • Patent number: 10029045
    Abstract: Ambulatory infusion pumps, pump assemblies, and baseplate assemblies, including cartridges, baseplates, cannulas, inserters, and related components and batteries therefor, as well as component combinations and related methods.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 24, 2018
    Assignee: perQflo, LLC
    Inventors: Roger E. Smith, Carla Mann Woods
  • Patent number: 10024240
    Abstract: A method of determining a duration of a movement of a starter air valve of a turbine engine, the valve for regulating the passage of a flow of pressurized air from upstream to the downstream of pipework, where the downstream side is connected to a pneumatic starter of the turbine engine, the method including determining an instant of initiation and an instant of completion of a movement of the valve during a movement phase of the valve, determining the duration of the movement of the valve, by subtracting the instant of initiation from the instant of completion, calculating a difference between the determined duration of the movement and a theoretical value of the duration.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: July 17, 2018
    Assignee: SNECMA
    Inventor: Guilhem Alcide Auguste Foiret
  • Patent number: 10018972
    Abstract: Embodiments of the present disclosure provide an apparatus including: a controller communicatively coupled to a power generation system and configured to shift the power generation system between a first operating mode and a second operating mode, the second operating mode being different from the first operating mode; and a economic optimization engine in communication with the controller, wherein the economic optimization engine calculates: an economic benefit for shifting the power generation system from the first operating mode to the second operating mode based on at least one of a power generation demand, a power generation cost, and an operating condition of the power generation system; and a billing rate per unit of time of operation in the second operating mode based on at least one of the economic benefit, an operating difference between the first operating mode and the second operating mode, and a predetermined cost differential.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: July 10, 2018
    Assignee: General Electric Company
    Inventors: Rahul Jaikaran Chillar, Ernest George Cusick, Julio Enrique Mestroni, Charles Steven Renfro
  • Patent number: 10006463
    Abstract: An air conditioning apparatus includes a centrifugal fan mounted in an interior of a casing and a pressure sensor. The pressure sensor can have a primary-side pressure detection tube opened in a position adjacent to a circumferential part of the casing on an inlet side surface of the bell mouth of the fan when the bell mouth is seen from a direction along the rotary shaft to detect a primary-side pressure of the centrifugal fan. Alternatively, the pressure sensor can have a primary-side pressure detection tube opened in a position adjacent to a circumferential part of the casing on a heat exchanger compartment side surface of the partition member when the partition member is seen from a direction along the rotary shaft to detect a primary-side pressure of the centrifugal fan.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: June 26, 2018
    Assignee: Daikin Industries, Ltd.
    Inventors: Takashi Kashihara, Takahiro Yamasaki, Naofumi Yokoyama, Tsuyoshi Yokomizo
  • Patent number: 9989069
    Abstract: One or more through-holes communicating with one or more of the plurality of screw grooves are formed at the cylindrical stator, a total of circumferential dimensions of the one or more through-holes formed at the cylindrical stator is set at equal to or greater than a circumferential dimension of an outer peripheral surface region of the cylindrical stator facing the second suction port, and a gas path through which inflow gas through the second suction port is guided to a screw groove is provided, the one or more through-holes penetrating through the screw groove and the screw groove being apart from the region facing the second suction port.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 5, 2018
    Assignee: Shimadzu Corporation
    Inventor: Masashi Manabe
  • Patent number: 9976439
    Abstract: The present invention relates to a method for differentiating control failures in a system for controlling an actuator (14) determining the position of a member for modifying the state of a gas-turbine engine, the system including a single- or dual-channel electric control and a mechanical control, the electric control including one computer (10, 10?) per channel, only one of which is active at any given time in order to calculate the set position of the movable member of the actuator (14) and to transmit a set signal to the single-channel mechanical control of the actuator, a failure being diagnosed when a deviation is detected between the set position of the movable member of the actuator and the position thereof measured during a predetermined deviation confirmation time.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 22, 2018
    Assignee: SNECMA
    Inventors: Severine Chevalier, Jose Roland Rodrigues, Alain Tiepel
  • Patent number: 9964098
    Abstract: The present invention relates to a method of controlling a wind turbine having at least one blade and a controller, including: detect location of foreign material adhered to the blade by sensors mounted on the blade and communicatively coupled to the controller; determine the resonance mode of the blade to be excited based on the location of the foreign material by the controller; and excite the blade to the resonance mode; wherein the resonance mode is one higher than the first order resonance mode. The present invention also relates to a wind turbine using the method.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: May 8, 2018
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Yu Zhou, Wanying Chen, K. J. Karthik, Amit Kalyani, Khoon Peng Lim, Pey Yen Siew
  • Patent number: 9957834
    Abstract: A system includes, in one example, a shroud configured to circumscribe a plurality of rotor blades of a gas rotor engine, and at least one rub button including a head portion having a height configured to extend into a flow path region of the shroud along a central axis of the rub button that extends radially into the flow path region. The head portion includes a profile, orthogonal to the central axis, that varies according to a defined function of the height of the head portion.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: May 1, 2018
    Assignee: United Technologies Corporation
    Inventors: David J. Wasserman, Michael G. McCaffrey, Michael G. Abbott
  • Patent number: 9957843
    Abstract: A control method for optimizing a turndown operation for a power plant having a plurality of generating units. The plurality of generating units each may include either an on-condition or an off-condition during a selected operating period.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 1, 2018
    Assignee: General Electric Company
    Inventors: Lisa Anne Wichmann, Chrstopher Michael Raczynski
  • Patent number: 9926802
    Abstract: There is disclosed an access port for a casing of a gas turbine engine and a plug for plugging the access port. The access port and plug each include first and second baulking formations which are configured to engage with one another. The first and second baulking formations are spaced from one another by a unique angular separation which allows only the correct plug to be inserted into the correct access port.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: March 27, 2018
    Assignee: ROLLS-ROYCE plc
    Inventor: David Coles
  • Patent number: 9885276
    Abstract: A fan having a temperature detecting function includes a fan frame, an extension member, a temperature sensor and a restricting portion. The fan frame has an air inlet, an air outlet, and an impeller rotatably arranged between the air inlet and the air outlet. The extension member has one end adjacent to the fan frame. The temperature sensor is arranged at one of the air inlet and the air outlet via the extension member in a position where the surface of the temperature sensor is fully exposed to the ambient air. The restricting portion is arranged at the one of the air inlet or the air outlet. The restricting portion is located between the extension member and the impeller and is adapted to prevent the extension member from making contact with the impeller.
    Type: Grant
    Filed: December 27, 2015
    Date of Patent: February 6, 2018
    Assignee: SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD.
    Inventors: Hao-An Shieh, Yi-Ling Tu
  • Patent number: 9880070
    Abstract: Inspection systems for a gas turbine engine (20) are provided. The inspection systems may comprise an inspection port (106), a bore-scope plug (100), a seal seat (108) and a seal (110A/110B). The bore-scope plug (100) may comprise a shaft (102A/102B) having a uniform or stepped profile. The seal (110A/110B) may be a multi-part seal (110A) or a piston seal (110B). Moreover, the bore-scope plug (100) may be configured to support, carry, and/or stabilize one or more internal structures such as, for example, a mid-turbine frame vane 82. In various embodiments, the inspection systems described herein may provide for increased inspection efficiency during development, qualification, maintenance, and event inspections.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: January 30, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: David T. Feindel, Steven D. Porter
  • Patent number: 9874107
    Abstract: A wind turbine diagnostic device for diagnosing mechanical damage to generator components of at least one wind turbine, comprising at least one speed sensor for determining a variation over time of the rotational speed of a generator of a wind turbine, the speed sensor having at least one speed signal output for outputting the determined variation over time of the rotational speed, a frequency analysis module and a frequency spectrum signal output for outputting a frequency spectrum, the frequency analysis module determining a frequency spectrum from the determined variation over time of the rotational speed, and a comparator element for comparing a frequency spectrum with a prescribed standard frequency spectrum and for diagnosing mechanical damage to generator components on the basis of the comparison. This increases the possibility of predicting mechanical damage to generator components caused by vibrations.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: January 23, 2018
    Assignee: SENVION SE
    Inventors: Martin Falb, Lars Nietmann
  • Patent number: 9863272
    Abstract: A turbomachine of this disclosure includes a rotation shaft, a first impeller, a first bearing, and a second bearing. The first impeller is fixed to the rotation shaft and includes a low-pressure-side surface. The first bearing is adjacent to the low-pressure-side surface of the first impeller and supports the rotation shaft. The second bearing is disposed on an opposite side of the first impeller from the first bearing and supports the rotation shaft. The rotation shaft includes a first tapered portion gradually increasing in diameter toward the first impeller. The first bearing includes a first support surface supporting the first tapered portion.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: January 9, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Tadayoshi Shoyama
  • Patent number: 9863436
    Abstract: A pump housing has a spiral housing and includes a suction channel (14) which runs out in a space (15). The space (15) is for arranging an impeller (6), rotatable about a rotation axis (5), and includes a spirally peripheral channel (16) open to the space (15) and running out into a pressure channel. A receiver (20) for a differential pressure sensor is provided within the pump housing. A first sensor channel (22) is provided, which connects the receiver (20) to a pressure-side interior of the pump housing. A second sensor channel (23) connects the receiver (20) to the pressure-side interior of the pump housing. The receiver (20) for the differential pressure sensor is arranged between the spirally peripheral channel (16) and the suction channel (14), so that the channels can be formed by way of simple bores.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: January 9, 2018
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Casper Pedersen, Nicholas Pedersen
  • Patent number: 9856748
    Abstract: A probe cooling system for a gas turbine engine includes a probe housing and a bushing disposed between an end of the probe housing and a gas path, the bushing extending from the end of the probe housing to form a cavity. The system also includes a first plenum defined within the probe housing and configured to direct air from an internal cooling air supply towards the cavity. The system also includes a second plenum defined between the bushing and the probe housing and configured to direct air from the internal cooling air supply towards the cavity.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: January 2, 2018
    Assignee: United Technologies Corporation
    Inventors: Blaine M. Johnston, Mark A. Torrance, Steven G. Lemieux, Dmitriy A. Romanov
  • Patent number: 9809303
    Abstract: According to one embodiment, a method for determining a position of a rotor blade includes receiving a plurality of measurements from a plurality of magneto-resistive sensors and determining a position of the at least one magnet based on the received plurality of measurements. In this example, one of the plurality of magneto-resistive sensors and the at least one magnet moves with a rotor blade.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: November 7, 2017
    Assignee: Bell Helicopter Textron Inc.
    Inventor: Troy C. Schank
  • Patent number: 9766159
    Abstract: A fixture 4 for endoscopic inspection is provided with insertion direction regulating portions for regulating an access direction of an insertion portion of an endoscope fixed to an access port for an endoscope of an engine and connecting an external access port disposed on an exterior cover of the engine to an internal access port disposed on an exterior shroud of the engine and an installation direction regulating portion for uniquely regulating an installation direction so that the insertion direction regulating portions match the access direction at a time of attachment to the external access port.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: September 19, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Yutaka Konomura, Eiichi Kobayashi, Fumio Hori
  • Patent number: 9765649
    Abstract: A borescope inspection (BSI) port fitting is provided for a gas turbine engine. The borescope inspection (BSI) port fitting includes a housing with a borescope inspection port.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: September 19, 2017
    Assignee: United Technologies Corporation
    Inventors: Ryan K. Snyder, Michael Dreher
  • Patent number: 9732628
    Abstract: A mid-turbine frame for a gas turbine engine includes an inner frame case. A bearing support member is located adjacent the inner frame case. At least one spoke is attached to the inner frame case. A passage extends through at least one spoke, the inner frame case, and the bearing support member.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: August 15, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Anthony P. Cherolis, Joshua Daniel Winn, Jonathan Lemoine
  • Patent number: 9708933
    Abstract: The present disclosure relates to plug assemblies within a gas turbine engine. In one embodiment, a plug assembly includes a boss which includes a shaft and a collar, a retaining element including at least two prongs, and a plug including a shank and at least one retaining feature. The at least two prongs of the retaining element are configured to retain the plug to the boss.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: July 18, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Dale William Petty
  • Patent number: 9683553
    Abstract: Systems and methods for monitoring wind turbine loading are provided. In one embodiment, a system includes a main shaft, a bedplate, and a gearbox coupled to the main shaft and mounted to the bedplate. The gearbox includes an outer casing and a torque arm extending from the outer casing. The system further includes an isolation mount coupled to the torque arm, and a sensor configured to measure displacement of the torque arm. In another embodiment, a method includes operating the wind turbine, and detecting displacement of a torque arm of a gearbox of the wind turbine. The method further includes calculating a moment for a main shaft of the wind turbine based on the displacement of the torque arm.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: June 20, 2017
    Assignee: General Electric Company
    Inventors: Dale Robert Mashtare, James Henry Madge, Charudatta Subhash Mehendale, George Albert Goller, Conner B. Shane
  • Patent number: 9631955
    Abstract: Sensor assemblies and methods of assembling and using the sensor assemblies are provided for monitoring operational characteristics of subsea rotating devices such as subsea motors and pumps. Pressure-compensated proximity sensor tip assemblies configured to withstand subsea pressures are mounted adjacent a subsea rotating shaft for directly monitoring a position of the rotating shaft during dynamic operation thereof. An end of a sensor housing opposite a sensor tip assembly is mounted to a wall of the device housing. The sensor housing defines a fluid reservoir containing a substantially incompressible fluid therein that is in fluid communication with the interior portions of the proximity sensor tip assembly. A length of the sensor housing is adjusted to accommodate a distance between the wall of the device housing and the rotating shaft.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: April 25, 2017
    Assignee: General Electric Company
    Inventors: Lam Arthur Campbell, Dan Tho Lu, Svein Arild Haugen, Jens Abrahamsen
  • Patent number: 9617977
    Abstract: The present invention relates to a method for controlling a wind turbine comprising a pitch of one or more blades and collecting first data indicative of a dynamic condition of the first wind turbine blade and a rotor, the first data comprising rotor data and first deflection data, the rotor data indicative of the azimuth position and rotational velocity of the rotor in a rotor plane perpendicular to the rotor axis, and the first deflection data indicative of the position, speed and acceleration of one or more parts of the first wind turbine blade. The method comprises calculating an expected tower clearance distance at a later time of tower passage for the first blade based on the first data including acceleration of one or more parts of the first blade, and performing measures to prevent tower collision, if the expected tower clearance distance fulfills a collision risk criterion.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 11, 2017
    Assignee: LM WIND POWER A/S
    Inventor: Mark Olaf Slot
  • Patent number: 9605654
    Abstract: A method of operating at least one wind turbine is described, comprising: determining a plurality of stress events of at least one component of the at least one wind turbine; determining at least one accumulated stress from at least two of the plurality of stress events; determining at least one residual lifetime based at least partially on the at least one accumulated stress.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: March 28, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Anders Wickström
  • Patent number: 9590537
    Abstract: Embodiments of the invention provide a variable frequency drive system and a method of detecting a ground in a system having a pump driven by a motor. The drive system and method can provide one or more of the following: a sleep mode, pipe break detection, a line fill mode, an automatic start mode, dry run protection, an electromagnetic interference filter compatible with a ground fault circuit interrupter, two-wire and three-wire and three-phase motor compatibility, a simple start-up process, automatic password protection, a pump out mode, digital input/output terminals, and removable input and output power terminal blocks.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 7, 2017
    Assignee: Pentair Flow Technologies, LLC
    Inventors: Micheal Robert Pasche, Gary Thomas Baase, II, William James Genaw
  • Patent number: 9512737
    Abstract: A standardized inspection port system with common inspection port bodies and port plugs are incorporated in plural inspection locations within a gas turbine engine casing to facilitate internal engine inspection. The inspection ports preferably have identical internal diameter, stub flange dimensions and axial length from the gas turbine casing inspection seat to the stub flange for standardized mounting of inspection instruments at different locations about the turbine. The inspection port system components are preferably axially and radially aligned along the turbine casing for establishing a common reference position along all turbine blade/vane rows. The port plug incorporates a magnetically attractive pole piece for concentration or redirection of an attractive magnetic field circuit generated by an inspection port plug service tool during plug insertion or retrieval.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: December 6, 2016
    Assignee: Siemens Energy, Inc.
    Inventors: Clifford Hatcher, Jr., James P. Williams
  • Patent number: 9500088
    Abstract: The present invention relates to a blade rim segment for a turbomachine with at least one shroud band which extends along a segment of a circle and is connected in single-piece fashion with at least three blades, which extend radially from the shroud band and are configured to be hollow with at least one channel, wherein the blade rim segment is manufactured in a single piece by casting and directional solidification, and wherein at the outlet openings of the channels of the blades, the shroud band exhibits first reinforcement ribs that surround the opening and run axially, as well as at least one second reinforcement rib between at least the first reinforcement ribs, as well as a corresponding method for manufacturing a blade rim segment.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 22, 2016
    Assignee: MTU AERO ENGINES AG
    Inventors: Markus Schlemmer, Marcin Rozak, Alexander Buck
  • Patent number: 9494052
    Abstract: A borescope plug configuration is disclosed. The borescope plug configuration comprises an inspection path defined through a bore in a first engine structure, a second engine structure, and an opening into the gas path of an engine. The borescope plug configuration further comprises a removable plug for sealing the inspection path. The removable plug is adapted to couple the first engine structure to the second engine structure.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 15, 2016
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: David T. Feindel, Jorge I. Farah
  • Patent number: 9459123
    Abstract: The invention comprises a vibration probe protection apparatus and method of use thereof. The sensor protection system dynamically moves the probe away from the shaft in response to radial movement of the shaft and subsequently repositions the sensor probe at a set distance from the rotating shaft. The sensor protection system optionally: (1) positions a protective element closer to the shaft than a tip of the probe, where radial movement of the shaft strikes the protective element and the protective element uses a portion of the resulting striking force to move the probe away from the shaft; (2) resists bounce of the probe upon delivery of force from movement of the shaft to the protective element; and/or (3) provides a return spring force to the probe tip toward the shaft to reposition the probe against a hard stop.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 4, 2016
    Inventor: Roger Morris
  • Patent number: 9297308
    Abstract: A gas turbine according to the invention includes a seal housing in which a leaf-shaped seal is provided and a detection end space, a gas introduction path, and a gas discharge path are also formed. The detection end space is formed at a position on the outside in a radial direction from a leaf-shaped seal, and the gas introduction path has an introduction port formed at a position further on the downstream side than the leaf-shaped seal and also has a radially extending portion extending toward the outside in the radial direction from the introduction port and an axially extending portion extending in the direction of an axis from an end portion of the radially extending portion and reaching the detection end space.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: March 29, 2016
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Eiichi Tsutsumi, Kenichi Arase
  • Patent number: 9261355
    Abstract: This disclosure relates to a device for optically measuring the curvature of a rotor blade (18) of a wind power plant (1). The rotor blade is fixed at the blade root (23) to a rotor hub (8) or a rotor (6). The device includes at least one light-emitting external marking (33) fixed to the rotor blade (18) at a distance from the blade root (23), at least one camera (27) fixed to the rotor (6) for capturing the light (35) emitted from the external marking (33). The device provides first location information as a function of the relative position of the camera (27) with respect to the external marking (33). An evaluating device (37) is coupled to the camera (27), and a position detection means detects the relative location of the camera (27) with respect to the blade root (23) and provides second location information as a function of said relative location. The evaluating device (37) determines at least one variable characterizing the curvature of the rotor blade (18) while evaluating the position information.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 16, 2016
    Assignee: SSB Wind Systems GmbH & Co. KG
    Inventor: Fabio Bertolotti
  • Patent number: 9062687
    Abstract: An axial compressor includes a rotor, a stator, and a blade attached to the stator at a base section and linked to a ferrule at a section opposing the base section, the ferrule being supported solely by the blade. The rotor is configured to rotate within the stator and the ferrule is configured to extend around a periphery of the rotor.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: June 23, 2015
    Assignee: Techspace Aero S.A.
    Inventor: Jean-Francois Cortequisse
  • Publication number: 20150147159
    Abstract: A casing arrangement of a gas turbine includes a sensor element of elongated design that when seen in the longitudinal direction has a front end and a rear end, a first casing structure, a second casing structure arranged at a distance from the first casing structure and having a receptacle for the front end of the sensor element, and a guide structure having an elongated guide opening for the sensor element. The sensor element extends between the first casing structure and the second casing structure, while being arranged along a section in the elongated guide opening of the guide structure, where the sensor element due to the elongated guide opening is aligned and positioned such that its front end is located, and can only be located, inside the receptacle of the second casing structure.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventor: Christian HOMEYER
  • Publication number: 20150145253
    Abstract: The invention is a method for controlling and/or monitoring a wind turbine 1 equipped with a LIDAR sensor 2. Control and/or monitoring provides an estimation of the wind speed at the rotor obtained an estimator and a LIDAR sensor 2. The estimator of the wind speed at the rotor is constructed from a representation of the wind, a model of the LIDAR sensor and a wind propagation model.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Benoit BAYON, Jonathan CHAUVIN
  • Publication number: 20150132108
    Abstract: An edge detector is provided for determining the axial position of the leading or trailing edge of a rotating blade within rotating machinery. The edge detector includes a set of axially spaced tip detection probes locatable within a casing of the machinery. Each probe is arranged to detect whether or not the blade tip passes over that probe. The edge detector determines the axial position of the edge of the blade as the position of the boundary between those tip detection probes which detect passage of the blade tip thereover and those tip detection probes which detect no passage of the blade tip thereover.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 14, 2015
    Inventor: Alan Richard JONES
  • Publication number: 20150132102
    Abstract: Apparatus and method for determining a two-dimensional temperature distribution in a cross-sectional path of a hot-temperature flow in a turbine engine (10). A grid (22, 24, 38) is located in a path of a hot-temperature flow in the turbine engine. A thermal imager (34) has a field of view configured to sense infrared emissions from the grid. A processor (50) is configured to generate data indicative of a two-dimensional temperature distribution in a cross-sectional path of the flow based on the sensed infrared emissions.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 14, 2015
    Inventors: Dennis H. Lemieux, Vinay Jonnalagadda, Paul J. Zombo
  • Publication number: 20150125267
    Abstract: A standardized inspection port system with common inspection port bodies and port plugs are incorporated in plural inspection locations within a gas turbine engine casing to facilitate internal engine inspection. The inspection ports preferably have identical internal diameter, stub flange dimensions and axial length from the gas turbine casing inspection seat to the stub flange for standardized mounting of inspection instruments at different locations about the turbine. The inspection port system components are preferably axially and radially aligned along the turbine casing for establishing a common reference position along all turbine blade/vane rows. The port plug incorporates a magnetically attractive pole piece for concentration or redirection of an attractive magnetic field circuit generated by an inspection port plug service tool during plug insertion or retrieval.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Inventors: Clifford Hatcher, JR., James P. Williams
  • Publication number: 20150110602
    Abstract: The invention relates to an instrumented airfoil for mounting in a flow passage through a turbine, compressor, or module of a turbine engine. An instrumentation member is attached to an airfoil and includes information-obtaining means received in a cutout formed in the airfoil and projecting relative to the leading edge or the trailing edge. According to the invention, the instrumentation member also comprises a holder portion that is united with the information-obtaining means and that is attached to the cutout in such a manner that its surface is in alignment respectively with the suction side wall, the pressure side wall, and the leading edge or the trailing edge of the airfoil, the transitions between these respective surfaces not presenting any setbacks.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 23, 2015
    Applicant: SNECMA
    Inventors: Gabrijel RADELJAK, Pascal COUHIER, Benedicte LELEU, Frederic Raymond Jean MIROUDOT, Sebastien HAMEAU, Antoine Jean JAUSOVEC
  • Patent number: 9014460
    Abstract: Apparatus (12) to measure blade vibration in a gas turbine engine (8). An illumination source (20) generates a sequence of illumination bursts in a field of view capturing a passing rotating blade (10) of the gas turbine engine. An imager (22) generates image data including a series of images capturing views of the passing rotating blade. The images are exposed in response to respective illumination bursts. A controller (30) is configured to process the series of images to identify one or more vibration modes of the rotating blade.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: April 21, 2015
    Assignee: Siemens Energy, Inc.
    Inventor: Michael Twerdochlib
  • Publication number: 20150104291
    Abstract: A seal assembly for sealing a fluid passageway from contaminants is disclosed. The fluid passageway is formed by a rotating shaft entering an opening in a housing. The fluid passageway connects an interior of the housing, and any exterior of the housing. The seal assembly includes a first sealing member and a second sealing member, which divides the fluid passage into an interior section, an open section, and a sealed section. The interior section is exposed to the interior of the housing. The sealed section is fluidly sealed between the interior section and the open section. A sensor is disposed within the sealed section. The sensor is configured to sense the contaminants within the sealed section and is electronically coupled to a controller configured to send an alarm signal. The sensor is a moisture sensor and extends into an annular recess formed in the stationary member.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Inventors: Randy J. Kosmicki, Michael L. Viken
  • Patent number: 8998568
    Abstract: A turbine is provided and includes a rotor, which is rotatable about a centerline thereof, a sensor to measure a condition at a point of measurement interest defined on the rotor at a radial distance from the centerline, a communication system by which condition measurements are transmittable from the sensor to a non-rotating recording system and a probe holder to secure the sensor and a portion of the communication system on the rotor proximate to the point of measurement interest.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: April 7, 2015
    Assignee: General Electric Company
    Inventors: Kurt Kramer Schleif, Gregory Quentin Brown, Philip Michael Caruso, Fernando Jorge Casanova, Seung-Woo Choi, Josef Scott Cummins, Matthew Ryan Ferslew, Andrew Clifford Hart, Robert David Jones, Jong Youn Pak, Francesco Soranna
  • Patent number: 8998569
    Abstract: A gas turbine engine includes a gas turbine engine internal compartment structure having an integral passageway. Wiring is routed through the integral passageway of the gas turbine engine internal compartment structure.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 7, 2015
    Assignee: United Technologies Corporation
    Inventor: Russell B. Witlicki
  • Publication number: 20150086334
    Abstract: A device and method for precise measurement of erosion of compressors, without removing an engine, and with easy positioning. A centrifugal compressor of a gas turbine with a radial air inlet includes an impeller including blades and a casing for an air stream to flow in the blades of the impeller. The casing, covered with an abradable coating, includes an annular elbow zone in a substantially median part. Marking depressions of predetermined depths, preferably in groups, are machined in the abradable coating of the zone. Examinations by endoscopy are successively performed to provide an image signal of the markers. Processing the endoscopic signal supplies a number of remaining markers and a criterion for decision on removing the engine is applied thereto. Erosion occurs in the elbow of the casing and evolution thereof may enable monitoring of erosion of other components of the compressor, in particular the blades of the impeller.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 26, 2015
    Applicant: TURBOMECA
    Inventors: Paul-Etienne Jactat, Pascal Lebrusq, Jerome Sarramea, Lionel Scuiller