Method Of Operation Patents (Class 415/1)
  • Patent number: 9366201
    Abstract: A thrust reverser for a nacelle of a turbojet engine includes deflecting cascades and an external cowl which translates from a closure position to an opening position by a set of control cylinders being attached by their ends to the external cowl. The deflecting cascades are supported by a front frame and a rear frame respectively and are enclosed in an envelope formed by a fan carter and by a fan cowl. The thrust reverser further includes a lock which is able to connect or disconnect the deflecting cascades to the external cowl. When the lock is unlocked, the set of control cylinders translate the external cowl alone in downstream direction while in the lock position, the control cylinders translates the external cowl and the deflecting cascades together in downstream direction.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: June 14, 2016
    Assignee: AIRCELLE
    Inventor: Pierre Caruel
  • Patent number: 9353727
    Abstract: A method of in situ calibrating load sensors of a horizontal axis wind turbine is described. The method comprises the steps of: a) determining a rotor azimuth angle of a first wind turbine blade, b) determining a pitch angle of the first wind turbine blade, c) measuring loads in a first cross-section of the first wind turbine blade using the first load sensors, d) calculating theoretical loads based on at least the rotor azimuth angle and the pitch angle of the blade determined in steps a) and b), e) comparing the loads measured in step c) with the theoretical loads calculated in step d), and f) calibrating the first load sensors based on the comparison of step e), wherein the calibration are based only on measurements carried out, when the generator is cut out.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: May 31, 2016
    Assignee: LM GLASFIBER A/S
    Inventor: Mark Olaf Slot
  • Patent number: 9347432
    Abstract: A computer-implemented method of operating a wind turbine park including operating wind turbines includes recording a plurality of sound pressure measurements of the wind turbine park, thereby generating a sound recording. The method also includes calculating values for a plurality of acoustic features associated with the sound recording. The method further includes determining a relationship between the calculated values for the plurality of acoustic features and modeled acoustic features values resident within a probabilistic auditory model of the wind turbine park. The method also includes distinguishing a first contribution to the sound recording originating from the at least one operating wind turbine from a second contribution to the sound recording originating from non-wind turbine sources based on the determined relationship.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 24, 2016
    Assignee: General Electric Company
    Inventors: Andreas Herrig, Benoit Philippe Petitjean, Sara Simonne Louisa Delport, Nathan Charles Schneider
  • Patent number: 9334869
    Abstract: A fluid stabilizing control method of an axial compressor is provided, which includes driving to drive the axial impeller, and stall controlling to suppress or prevent an occurrence of a stall that may transpire during rotation of the axial impeller by supplying highly-pressurized compressed air into the casing through a stall controller according to a predetermined time and volume. Accordingly, a stall may be suppressed or prevented, the occurrence of a stall that may transpire when a threshold point is exceeded by an unexpected event during driving in a low-flow high-pressure section on a performance curve, in which efficiency is high. Additionally, since an air injection method for suppressing the stall is properly applied, an amount of power expended for the stall control may be reduced while supply of the high-pressure compressed air is minimized, thereby achieving economically feasible stall control.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 10, 2016
    Assignee: Korea Aerospace Research Institute
    Inventors: Young Seok Kang, Soo Seok Yang, Hyung Soo Lim, Hyo Jo Bae, Seung Jin Song, Shin Hyoung Kang
  • Patent number: 9334800
    Abstract: To provide a method of controlling a turbine equipment and a turbine equipment capable of carrying out a starting operation of controlling a load applied to a speed reducing portion while complying with a restriction imposed on an apparatus provided at a turbine equipment. The invention is characterized in including a speed accelerating step (S1) of increasing a revolution number by driving to rotate a compressing portion and a turbine portion by a motor by way of a speed reducing portion, a load detecting step (S2) of detecting a load applied to the speed reducing portion by a load detecting portion, and a bypass flow rate controlling step (S3) of increasing a flow rate of a working fluid bypassed from a delivery side to a suction side of the compressing portion when an absolute value of the detected load is equal to or smaller than an absolute value of a predetermined value and reducing the flow rate of the bypassed working fluid when equal to or larger than the absolute value of the predetermined value.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: May 10, 2016
    Inventors: Hitoi Ono, Takashi Sonoda, Naoto Tochitani, Makoto Kato, Masahide Umaya, Fuminori Fujii
  • Patent number: 9309896
    Abstract: A compressor unit for processing a working fluid comprising a compressor inside a housing to compress the working fluid wherein a collection chamber is fluidly coupled with a working fluid inlet of said housing.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: April 12, 2016
    Assignee: Nuovo Pignone, S.P.A.
    Inventors: Giuseppe Vannini, Luciano Mei, Massimo Pinzauti, Franco Frosini
  • Patent number: 9303533
    Abstract: A method for producing work from heat including mixing a first working fluid F1 vapor with a second working fluid F2 vapor to form a third working fluid F3; atomizing and/or vaporizing a liquid into the third working fluid F3 to define a saturated working fluid; and expanding the saturated working fluid to perform useful work. A high pressure F1(2) portion of the first working fluid F1 may be expanded prior to the mixing step while the F2 vapor is compressed prior to the mixing step. The steps of compressing the F2 vapor and expanding the high pressure F1(2) portion of the first working fluid F1 may be carried out by an integral compressor and expander assembly (204/209). The integral compressor and expander assembly (204/209) may be positioned within a combined mixer assembly (300) with an internal mixing chamber (206) and outlets (375, 351) of both the compressor (204) and expander (209) are directed toward the mixing chamber 206.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 5, 2016
    Assignee: Harris Corporation
    Inventor: William R. Palmer
  • Patent number: 9243644
    Abstract: Methods, devices and systems capable of performing a hot restart of a compressor driven by a turbine are provided. The turbine has a high speed shaft and a low speed shaft connected to the compressor. A base slow roll speed at which a speed of the low speed shaft is in a slow roll range is maintained at the high speed shaft for a predetermined time. Then, when a vibration amplitude of the compressor is larger than a vibration limit, the maintaining is repeated. Otherwise, a set speed of the high speed shaft is increased, until a current speed of the low speed shaft reaches a minimum operating speed. If, while increasing the set speed, the vibration amplitude becomes larger than the vibration limit, the maintaining is repeated.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 26, 2016
    Assignee: Nuovo Pignone, S.P.A.
    Inventors: Gianni Bagni, Antonio Baldassarre, Leonardo Baldassarre, Michele Fontana
  • Patent number: 9194247
    Abstract: A seal configuration includes a housing and a rotatable member rotationally mounted relative to the housing. The rotatable member has at least one portion defining an outer perimetrical face that is configured to contact the housing during operational conditions that cause a radial dimension of the at least one portion to increase. The at least one portion has opposing axial surfaces with each of the opposing axial surfaces being dimensionally axially nearer to the other of the opposing axial surfaces immediately radially inwardly of the outer perimetrical face than a furthest part of the outer perimetrical face.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 24, 2015
    Assignee: General Electric Company
    Inventors: David Richard Johns, Eric David Roush
  • Patent number: 9176023
    Abstract: A method for obtaining an estimate for a process quantity of a turbomachine comprises measuring (301) first process quantities and calculating (302) an estimate for a second process quantity, for example mass flow, on the basis of the measured first process quantities and a reference table of interrelations between process quantities prevailing in reference inlet conditions corresponding to a pre-defined inlet fluid temperature, a pre-defined inlet fluid pressure, and pre-defined fluid properties at the inlet. The reference table and the measured first process quantities represent such a set of data values that the estimate is obtainable on the basis of different sub-sets of the data values. Hence, the estimation task is over-posed in the sense that there is more data than necessary for obtaining the estimate. In the calculation of the estimate, more weight is given to such a part of the data which has a smaller error contribution.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: November 3, 2015
    Inventors: Arttu Reunanen, Erkki Lantto, Ville Tommila
  • Patent number: 9163608
    Abstract: A wind turbine apparatus includes a shaft carrying a plurality of rotor wheels fixed at axially spaced intervals. Each rotor wheel includes buckets at the periphery thereof. First and second generally cylindrical housing are disposed in concentric relationship to define a blind annular chamber surrounding the rotor wheels that directs ambient winds to through the inner wall of the inner cylindrical housing to the periphery of the respective rotor wheels. One extremity of the blind annular chamber is open for receiving ambient air flow and a second axial extremity proximate is closed, whereby axial airflow into the annular chamber is substantially directed in a radial direction toward the buckets carried on the rotor wheels to cause rotation of the shaft.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 20, 2015
    Inventor: Jose E Morales Franqui
  • Patent number: 9127684
    Abstract: Methods and devices for performing a model based anti-surge dead time compensation in systems including a compressor and an anti-surge loop are provided. A new position of an anti-surge valve on the anti-surge loop is determined by correcting for dead time a value of the anti-surge parameter calculated from field measurements, based on a predicted anti-surge parameter estimated using a deterministic model which has as variables the field measurements and a current position of the anti-surge valve.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: September 8, 2015
    Assignee: Nuovo Pignone S.P.A.
    Inventor: Daniele Galeotti
  • Patent number: 9121285
    Abstract: A turbine includes a rotor and a casing that circumferentially surrounds at least a portion of the rotor. The rotor and the casing at least partially define a gas path through the turbine. A last stage of rotating blades is circumferentially arranged around the rotor and includes a downstream swept portion radially outward from the rotor. A method for reducing shock losses in a turbine includes removing a last stage of rotating blades circumferentially arranged around a rotor and replacing the last stage of rotating blades with rotating blades having a downstream swept portion radially outward from the rotor.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: September 1, 2015
    Inventor: Neil Ristau
  • Patent number: 9072569
    Abstract: The invention relates to a medical turbine handpiece, in particular a dental turbine handpiece, having a drive shaft rotatably mounted in the front end region of the handpiece and to which a tool can be connected, as well as a turbine wheel arranged so as to be non-rotatable on the drive shaft and is arranged in a turbine chamber realized in the end region, into which turbine chamber a supply line for a flowing pressure medium for driving the turbine wheel opens out at an inlet opening and from which turbine chamber a removal line extends at an outlet opening, wherein at least one cross connecting channel for the pressure medium is realized in the wall of the turbine chamber, the cross connecting channel connecting the axially remote edge region of the turbine chamber to a region of the turbine chamber that is axially close to the drive shaft.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: July 7, 2015
    Inventors: Thomas Roesch, Alexander Flock
  • Patent number: 9068557
    Abstract: A directed flow wind turbine is configured to utilize a laminar flow of an entering wind through the directed flow wind turbine and includes a plurality of rotor vanes mechanically coupled to an upper rotor ring and a lower rotor ring. A shaft is mechanically coupled to the upper rotor ring and the lower rotor ring and configured to receive torque from the plurality of rotor vanes. An upper housing plate is attached to the shaft with an upper bearing. A lower housing plate is attached to the shaft with a lower bearing. An upwind flow shield, a downwind flow shield, and a rotor protector shield are attached to the upper housing plate and the lower housing plate. Wherein dimensions of these components are controlled in order to maintain the laminar flow of the entering wind.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 30, 2015
    Inventor: Calvin Lee Garrett
  • Patent number: 9062552
    Abstract: A turbine engine stator stage includes a plurality of vanes with each of the plurality of vanes having a camber angle. The plurality of vanes is arranged in a plurality of groups with each group including a pre-determined sequence of vanes. The ordering of vanes within each group is determined by the camber of the individual vanes. This results in an arrangement of vanes within the stator stage which can modify the flow characteristics of the air entering the stator stage to reduce the circumferential pressure variation in the flow region immediately downstream of the stator stage.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 23, 2015
    Assignee: ROLLS-ROYCE plc
    Inventor: Lewis J. Holmes
  • Publication number: 20150147154
    Abstract: The embodiments herein disclose a system and method for providing an intrinsic safety to rotating machinery from the failure of internal high speed rotating structures. According to one embodiment herein, a system assembly comprises a unique design of the rotating structure to provide a sufficient safety margin and redundancy in configuration. The system assembly comprises a blower fan assembled inside a blower casing and rotated inside the casing. The fan is manufactured by a single forging process instead of an investment casting. The fan comprises several blades mounted to a hub in a shroud to draw a required quantity of fluid. The fan is mounted to a shaft through the hub. When the blower fan is rotated at a high speed exceeding the design parameters, a ‘rub and stop’ mechanism is initiated to halt the fan.
    Type: Application
    Filed: October 14, 2014
    Publication date: May 28, 2015
  • Publication number: 20150143819
    Abstract: Systems, methods, and devices relating to a mechanism which can be used in gas cooling devices, pneumatic motors, turbines and other pressurized gas devices. A rotatable rotor is provided along with a number of hollow conduits that radially radiate from an exit port at the center of the rotor. The pressurized gas is injected into the mechanism at the inlet port(s). The gas enters the conduits and travels from the inlet port(s) to the exit port(s). In doing so, the gas causes the rotor to rotate about its central axis while the gas cools. This results in a colder gas at the exit port(s) than at the inlet port(s).
    Type: Application
    Filed: May 28, 2013
    Publication date: May 28, 2015
    Inventors: Jeliazko Polihronov, Anthony G. Straatman
  • Publication number: 20150147155
    Abstract: A fan control method, apparatus, and system, so as to implement speed regulation and rotation direction control on a four-wire system counter-rotating fan with a conventional four-wire fan interface by using a PWM control bus. The method provided by the embodiments of the present invention includes: receiving a first fan regulation and control signal sent by a system control module; converting the first fan regulation and control signal to a forward-rotating control signal, a counter-rotating control signal, or a rotation direction switchover control signal according to a duty cycle range of the first fan regulation and control signal and a current rotation direction of the fan; and sending a control signal obtained by the conversion to a fan driving module, so that the fan driving module drives, according to the control signal obtained by the conversion, the fan to operate.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Inventors: WEIFENG DUAN, Xi Chao
  • Patent number: 9039334
    Abstract: A pipe of an apparatus has a first gas in a first space and a second gas in a second space. The first gas is in the amount to generate a buoyancy force that exceeds at least a gravity force to position the apparatus in a stationary state at a predetermined distance relative to a reference surface. A fixture is coupled to the apparatus to secure the apparatus in the stationary state relative to the ground without supporting the apparatus. The first gas is lighter than the second gas. The pipe is capable of creating a flow of the second gas.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: May 26, 2015
    Inventor: Sergey Nikolayevich Ermilov
  • Publication number: 20150139777
    Abstract: A turbocharger system and method for a vehicle, wherein the system comprises a high pressure turbocharger and a low pressure turbocharger. Both the high and low pressure turbochargers are driven by exhaust gas on an exhaust side of the turbochargers. The system further comprises a first bypass conduit that bypasses the low pressure turbocharger during set events.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 21, 2015
    Inventors: Goran ALMKVIST, Jonas J. BJORKHOLTZ
  • Publication number: 20150139775
    Abstract: A system for extracting foreign matter in a gas turbine includes multiple variable bleed valve (VBV) doors disposed on the outer engine casing between a low pressure compressor and a high pressure compressor for bleeding a portion of flow from a core engine flow path into a bypass flow path. The system includes an outlet guide vane (OGV) assembly having multiple guide vanes disposed within the core flow path and multiple support struts positioned downstream from the multiple guide vanes. Each pairs of adjacent support struts comprises at least one VBV door therebetween and a section of the OGV assembly located at an upstream side of the fan hub frame before the each pairs of adjacent support struts. Each section of the OGV assembly includes a first side with one or more guide vanes with trimmed trailing edges configured for directing flow into the at least one VBV door.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: General Electric Company
    Inventors: Anurag Kumar, Byron Andrew Pritchard, Chiong Siew Tan
  • Publication number: 20150139776
    Abstract: Provided is a compressor control device configured to control a flow rate of a compressor having a plurality of impellers connected to an outlet port-side flow path in parallel and a flow rate regulation unit configured to regulate a flow rate of each of the impellers, the compressor control device including a pressure detection unit configured to detect a pressure of the outlet port-side flow path, a flow rate detection unit configured to detect the flow rate of each of the impellers, and a control unit configured to output a flow rate regulation command of each of the impellers to the flow rate regulation unit and control the flow rate regulation unit based on the detection result of the pressure detection unit.
    Type: Application
    Filed: September 12, 2013
    Publication date: May 21, 2015
    Inventors: Kazuhiro Takeda, Yosuke Nakagawa
  • Patent number: 9033649
    Abstract: Provided are corrosive environment monitoring systems and methods whereby corrosive factors are measured in a steam turbine and a corrosive environment is correctly monitored. A corrosive environment monitoring system measures corrosive factors having a part in damaging and deteriorating structural members in a steam turbine and is configured in such a way that steam in the steam turbine is permitted to flow into the corrosive environment monitoring system. Furthermore, in the steam turbine, a condensing mechanism condenses steam that has flowed in and a corrosive factor measuring device is equipped with corrosive factor sensors that measure corrosive factors in condensed water generated by the condensing mechanism.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: May 19, 2015
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hideo Kato, Yoshihiro Sakai, Kenji Nakamura, Mitsuo Yamashita
  • Patent number: 9033648
    Abstract: A gas turbine engine is disclosed having a vane disposed in a flow path of a gas turbine engine component, for example a gas turbine engine compressor. The vane is in thermal contact with a heat tube that extends through a wall of the engine component and into a space in which a thermal fluid passes. The thermal fluid can be at a different temperature than the vane such that heat is transferred between the two. In one embodiment the vane forms part of an intercooler for a compressor of the gas turbine engine. The vane can have a fin disposed at the end of the heat tube to facilitate a heat transfer.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 19, 2015
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventor: Mark Owen Caswell
  • 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: 20150128604
    Abstract: A flow path surface of a gas turbine engine at the location of a bladed component is disclosed in which the flow path surface includes a cylindrical upstream side and a conical downstream side. The bladed component is located at the intersection of the cylindrical upstream side and the conical downstream side. The cylindrical upstream side can extend from a leading edge of the bladed component, or a point upstream of it, to a location between the leading edge and trailing edge of the component. The conical downstream side can extend past the trailing edge of the bladed component. The bladed component can be a fan blade or a compressor blade.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 14, 2015
    Inventors: Bronwyn Power, Roy D. Fulayter, Jonathan M. Rivers
  • Publication number: 20150132101
    Abstract: A cooling system for a turbine engine for directing cooling fluids from a compressor to a turbine blade cooling fluid supply and from an ambient air source to the turbine blade cooling fluid supply to supply cooling fluids to one or more airfoils of a rotor assembly is disclosed. The cooling system may include a compressor bleed conduit extending from a compressor to the turbine blade cooling fluid supply that provides cooling fluid to at least one turbine blade. The compressor bleed conduit may include an upstream section and a downstream section whereby the upstream section exhausts compressed bleed air through an outlet into the downstream section through which ambient air passes. The outlet of the upstream section may be generally aligned with a flow of ambient air flowing in the downstream section. As such, the compressed air increases the flow of ambient air to the turbine blade cooling fluid supply.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Inventors: Jan H. Marsh, John J. Marra
  • Publication number: 20150125257
    Abstract: Certain embodiments of the disclosure may include systems and methods for boundary control during steam turbine acceleration. According to an example embodiment, the method can include receiving an indication the turbine is in an initial acceleration phase; receiving speed control parameter data from a plurality of sensors; receiving boundary control parameter data from a plurality of sensors; providing a control valve configured for controlling steam flow entering the turbine; determining the control valve position based on received speed control parameter data; determining the control valve position based on received boundary control parameter data; adjusting at least one boundary control parameter to the at least one boundary control parameter limit during turbine startup, wherein the value of a speed control parameter is simultaneously adjusted based on the adjusted at least one boundary control parameter; and adjusting the control valve position based at least on determined parameter data.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 7, 2015
    Applicant: General Electric Company
    Inventors: John Lawrence Meyer, Carl R. Toth, Dean Alexander Baker
  • Publication number: 20150125260
    Abstract: The invention offers a steam turbine forced air cooling system, its method, and a steam turbine provided with the system, the system being of an inexpensive and simple device configuration and improving a cooling effect by the use of an easy-to-get device. Suction is applied to the steam introduction side of an HP turbine 4 or an IP turbine 9 by the use of cooling air suction ejectors 27, 28 which use a compressed medium other than steam as a drive source. The cooling air is then introduced from the steam exhaust portion of the steam turbine into the inside of the steam turbine and is discharged from the ejectors 27, 28 to the atmosphere.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: Genki KASHIMA, Toyohiko MASUDA, Tetsuya HINUMA, Isao SAGAWA, Yoshitaka NARIMATSU, Hotaka KOBAYASHI, Goingwon LEE, Kenji SASAKI
  • Publication number: 20150125259
    Abstract: A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan section including a fan rotatable about an engine axis with a plurality of fan blades rotatable about a fan blade axis. A geared architecture is in communication with the fan and driven by a turbine section. The fan rotates at a first speed and the turbine section rotates at a second speed different from the first speed and a fixed area fan nozzle in communication with the fan section.
    Type: Application
    Filed: February 24, 2014
    Publication date: May 7, 2015
    Applicant: United Technologies Corporation
    Inventors: Gabriel L. Suciu, Brian D. Merry
  • Publication number: 20150125261
    Abstract: A system and method for controlling the acoustic signature of a turbomachine having a plurality of valves wherein an operating load is identified and an arc of admission across a plurality of nozzles is associated therewith. A valve sequencing scheme is selected and implemented to activate the arc of admission for a particular operating load so as to minimize valve noise by adjusting valves simultaneously rather than consecutively.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Inventors: Joseph Andrew Tecza, Stephen Samuel Rashid
  • Publication number: 20150125258
    Abstract: An aircraft (1) having a rotary wing (2) and turboshaft engines (11, 12, 13) for driving said rotary wing (2). The aircraft then includes two main engines (11, 12) that are identical, each capable of operating at at least one specific rating associated with a main power (maxTOP, OEIcont), and a secondary engine (13) capable of operating at at least one specific rating by delivering secondary power (maxTOP?, OEIcont?) proportional to the corresponding main power (maxTOP, OEIcont) in application of a coefficient of proportionality (k) less than or equal to 0.5, said aircraft having a control system (20) for driving the rotary wing by causing each main engine (11, 12) to operate continuously throughout a flight, and by using the secondary engine (13) as a supplement during at least one predetermined specific stage of flight.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 7, 2015
    Applicant: EUROCOPTER
    Inventor: Bernard Certain
  • Publication number: 20150118018
    Abstract: A seal gas delivery system for an end seal on a turbo machine rotor shaft includes a seal gas passageway for delivering a seal gas to the end seal and a seal gas distributor for receiving at least a portion of the seal gas from the seal gas passageway, the seal gas distributor having a plurality of holes for distributing the seal gas about the rotor shaft during turbo machine standstill; the holes are located on a cylindrical surface and are typically arranged all around said rotor shaft, preferably regularly all around said rotor shaft.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 30, 2015
    Inventors: Leonardo Baldassarre, Andrea Bernocchi
  • Publication number: 20150118015
    Abstract: An exhaust diffuser comprising an inner boundary and an outer boundary forming an annular gas path, and a plurality of strut structures extending radially within the gas path. Each of the strut structures include pressure and suction side walls, and a plurality of radially spaced flow injectors are formed in at least one of the pressure and suction side walls for injecting a fluid flow into the gas path adjacent to the strut structure. At least two fluid supply conduits provide a fluid flow to respective radially spaced flow injectors, and a flow control device is associated with each of the conduits to independently control a fluid flow from a fluid source to each of the radially spaced flow injectors.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Inventor: Pawel Matys
  • Publication number: 20150118017
    Abstract: According to one embodiment, an electronic device includes a fan, a temperature sensor and a controller. The temperature sensor is configured to output a value indicative of a detected temperature. The controller is configured to control a rotational speed of the fan. The controller is configured to keep the rotational speed of the fan constant when the value is within a first temperature zone or to change the rotational speed of the fan when the values is within a second temperature zone.
    Type: Application
    Filed: June 27, 2014
    Publication date: April 30, 2015
    Inventor: Shinsuke Yato
  • Publication number: 20150118016
    Abstract: Embodiments of the present application include a gas turbine assembly. The gas turbine assembly may include a solid wheel, a turbine aft shaft, and an aft joint connecting the solid wheel to the turbine aft shaft. The turbine assembly also may include a cover plate positioned between the solid wheel and the turbine aft shaft. The cover plate may be configured to direct a flow of compressor extraction fluid inboard through the aft joint and out the turbine aft shaft.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Scott Jacob Huth, Michael James Fedor
  • Publication number: 20150115607
    Abstract: A Method that consists of changing power of the payload and moment of resistance on the shaft of the wind generator in proportion to current wind speeds, and reduce speed of an air flow at meeting with blades of the wind engine of proportionally angular speed of a rotor. Wind generator for realization of the above Method contains blades formed by crossing of sectors of cavity cylinders under sharp corners to a direction of an air flow, and the depth of a cavity formed by crossing of sectors, exceeds distance between their forward borders, the internal surface of a cavity is executed with high frictional properties, and the outside surface of blades is executed with the minimal frictional properties. Wind generator for realization of the above Method must contain at least two electric generators, mechanical transmission and an automatic control system. Electric generators can be used from automobile industry.
    Type: Application
    Filed: October 27, 2013
    Publication date: April 30, 2015
    Inventor: Lev Stepanov
  • Publication number: 20150114000
    Abstract: A system for controlling compressor forward leakage to the compressor flow path in a gas turbine is provided. The system includes a first compressor rotor wheel coupled to an upstream face of a compressor spacer wheel. A second compressor rotor wheel is coupled to a downstream face of the compressor spacer wheel. The compressor spacer wheel includes at least one intake recess defined in the downstream face, at least one discharge recess defined in the upstream face, and at least one axial passage coupling the at least one intake recess in fluid communication with the at least one discharge recess.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Jagdish Prasad Tyagi, Srinivasarao Pakkala
  • Publication number: 20150118019
    Abstract: The present disclosure refers to an impingement cooling arrangement for cooling a duct wall of a duct guiding a hot gas flow. The impingement cooling arrangement includes an impingement sleeve which is at least partly disposed in a compressed air plenum, and spaced at a distance to the duct wall to form a cooling flow path between the duct wall and the impingement sleeve such that cooling air injected from the compressed air plenum through apertures in the sleeve impinges on the duct wall. At least one flow diverter is arranged in the cooling flow path to divert the cross flow away from at least one aperture. Besides the impingement cooling arrangement a gas turbine with such an arrangement as well as a method for cooling a duct wall are provided.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 30, 2015
    Inventors: Michael Thomas Maurer, Michael Huber, Selma Zahirovic
  • Publication number: 20150118013
    Abstract: The present application provides a hot gas path component for use in a hot gas path of a gas turbine engine. The hot gas path component may include an internal wall, an external wall facing the hot gas path, an impingement wall, a number of internal wall pedestals positioned between the internal wall and the impingement wall, and a number of external wall pedestals positioned between the external wall and the impingement wall.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: William Stephen Kvasnak, Scott Edmond Ellis
  • Publication number: 20150118014
    Abstract: The systems, methods, and computer-readable media set a gas turbine firing temperature to maintain gas turbine metal surface temperatures. In certain embodiments, a method of setting a gas turbine firing temperature is disclosed that may comprise determining a critical temperature at which ash from ash bearing fuels becomes unremovable by conventional water wash procedures, determining hot gas path component metal surface temperatures, and adjusting the gas turbine firing temperature to maintain the metal surface temperatures below the critical temperature. Determining the metal surface temperatures may be based at least in part on measured gas turbine parameters, gas turbine performance models, and empirical models.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Kevin Michael Elward, Scott Alan Kopcho, Robert Thomas Thatcher, Ariel Harter Lomas, Bradley Steven Carey, Clive Andrew Morgan
  • Patent number: 9017010
    Abstract: An example turbomachine geared architecture support assembly includes a subpart having a more compliant portion and a less compliant portion. The less compliant portion includes a stop that limits axial movement of a geared architecture within a turbomachine.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: April 28, 2015
    Assignee: United Technologies Corporation
    Inventor: John R. Otto
  • Publication number: 20150110596
    Abstract: A method for stopping the operation of a wind turbine is disclosed. The method may generally include receiving signals associated with at least one operating condition of the wind turbine, analyzing the at least one operating condition with a controller of the wind turbine, implementing a first stopping procedure in order to stop operation of the wind turbine when analysis of the at least one operating condition indicates that a pitch system failure has occurred and implementing a second stopping procedure in order to stop operation of the wind turbine when analysis of the at least one operating condition indicates that a different wind turbine stop event has occurred.
    Type: Application
    Filed: May 2, 2012
    Publication date: April 23, 2015
    Applicant: General Electric Company
    Inventors: Xiongzhe Huang, Danian Zheng
  • Publication number: 20150110595
    Abstract: A method for adjusting a barometric cell may include coupling the barometric cell to a control device via an actuating rod. The actuating rod may be movably mounted on a charging device in any desired position. The method may include applying a freely selectable pressure to the barometric cell so as to bring the actuating rod into contact with a stop, adjusting the barometric cell until a sensor registers a predefined value, and fixing the barometric cell on the charging device.
    Type: Application
    Filed: January 9, 2012
    Publication date: April 23, 2015
    Inventors: Jochen Schaeflein, Andreas Gail, Cgristian Rothe, Stefan Landerer, Anatolij Martens, Jochen Laubender, Stefan Bedoe, Christian Peschke, Jens Kreth, Alina Krause
  • Publication number: 20150110597
    Abstract: The invention relates to a method for controlling a turbine which is characterized by a hidden state at each point in time of the control. The dynamic behavior of the turbine is modeled using a recurrent neural network comprising a recurrent hidden layer. The recurrent hidden layer is formed by vectors of neurons which describe the hidden state of the turbine at the points in time of the control. For each point in time, two vectors are connected chronologically to a first connection which bridges one point in time, and two vectors are additionally connected chronologically to a second connection which bridges at least two points in time. Short-term effects can be corrected by means of the first connections, and long-term effects can be corrected by means of the second connections. Emissions and occurring dynamics can be minimized in the turbine by means of the latter. The invention further relates to a control device and a turbine comprising such a control device.
    Type: Application
    Filed: April 8, 2013
    Publication date: April 23, 2015
    Inventors: Siegmund Düll, Steffen Udluft, Lina Weichbrodt
  • Publication number: 20150104289
    Abstract: Methods and apparatus to adjust bleed ports on an aircraft engine are disclosed. An example apparatus for bleeding air from a multi-stage compressor of an aircraft engine includes a compressor case having a plurality of bleed ports. A first bleed port is associated with a first stage of a compressor, and a second bleed port is associated with a second stage of the compressor. The apparatus includes a plenum connected to the compressor case to define a plenum cavity. The plenum fluidly coupling the first and second bleed ports to a fluid conduit for providing bleed air to one or more systems of an aircraft. The apparatus also includes a bleed port selection mechanism located within the plenum cavity. The bleed port selection mechanism including a first portion proximate the first bleed port and operable to prevent fluid flow through the first bleed port.
    Type: Application
    Filed: February 25, 2014
    Publication date: April 16, 2015
    Inventors: Steve G. Mackin, Sean C. Thomas, Brian W. Debronsky
  • Publication number: 20150104288
    Abstract: A pump has a housing that defines a pump chamber (200) with a fluid inlet and outlet (26, 28). An impeller (30) is mounted for rotation in the pump chamber. A raceway (40) is in floating axial relationship with the impeller and divides the pump chamber into an inlet chamber (202), an impeller chamber (204) and a discharge chamber (206). The raceway has preferably two flow channels, in separated end-to-end arrangement. Each flow channel has an inlet passage and an outlet passage, establishing a fluid conduit from the inlet chamber to the impeller chamber and then to the discharge chamber. A spring (60) provides resistance to axial movement of the raceway away from the impeller. A seal chamber (42) formed on the raceway and pressurized by the fluid, urges the raceway towards the impeller.
    Type: Application
    Filed: September 18, 2012
    Publication date: April 16, 2015
    Inventors: Chih M. Lin, William J. Watkins, Bruce B. Ordway
  • Publication number: 20150104290
    Abstract: A fluid processing device may include a rotatable shaft, a driver configured to drive the rotatable shaft, a separator installed on the rotatable shaft, and a supersonic compressor fluidly communicating with the separator.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Inventors: Bradford W. Dickson, Harry Allan Kidd
  • 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