Method Of Operation Patents (Class 415/1)
  • Patent number: 8944749
    Abstract: An oil purge system for a mid turbine frame (MTF) of a gas turbine engine has an oil transfer tube surrounded by a heat shield tube. The oil transfer and heat shield tubes extend at their respective inner ends downwardly from an oil port of a bearing housing and terminate at their respective outer ends projecting outwardly from an annular wall of an outer case of the MTF. Oil leaked from the oil port is purged by pressurized air through an annular cavity formed between the oil transfer and heat shield tubes, and is discharged out of the MTF.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: February 3, 2015
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Eric Durocher, John Pietrobon, Zenon Szlanta, Roger Huppe
  • Patent number: 8944746
    Abstract: A turboexpander-compressor system includes an expander configured to expand an incoming gas, a first set of moveable inlet guide vanes configured to control a pressure of the incoming gas, a compressor configured to compress a gas received from the expander, a shaft configured to support and rotate an expander impeller and a compressor impeller, a second set of moveable inlet guide vanes attached to the compressor and configured to control a pressure of the gas input into the compressor, and a controller configured to acquire information about a rotating speed of the shaft, a pressure and a temperature of the incoming gas, a pressure and a temperature of the gas output from the expander, and to control the second set of moveable inlet guide vanes to maximize a ratio between the rotating speed of the shaft and a drop of an enthalpy across the expander, in off-design conditions.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 3, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Gabriele Mariotti, Alberto Scotti Del Greco, Stefano Ghiraldo
  • Patent number: 8944747
    Abstract: An actuation system includes a driving ring configured to rotate and having a groove on an internal face facing a central point of the driving ring; at least a linkage attached with a first end to an inside of the groove; and at least a lever arm attached to a second end of the at least a linkage. At least a portion of the at least a linkage stays inside the groove when the driving ring rotates.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: February 3, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Franco Sarri, Giuseppe Iurisci, Marco Pelella
  • Patent number: 8944748
    Abstract: A fluid pump device, in particular for a medical application, is described having a compressible pump housing and rotor, as well as with a drive shaft which runs in a sleeve and on whose end the fluid pump is arranged. In order to utilize all possibilities of a space-saving arrangement of the respective pump housing of the rotor, which is compressible per se, and as the case a bearing arrangement, the mentioned elements are displaceable to one another in the axial direction compared to an operation position. In particular these elements may be end-configured by way of an axial movement of the drive shaft after the assembly.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: February 3, 2015
    Assignee: ECP Entwicklungsgesellschaft mbH
    Inventor: Reiner Liebing
  • Publication number: 20150027708
    Abstract: In one aspect an apparatus for performing a downhole operation is disclosed that in one non-limiting embodiment may include a downhole tool that contains a hydraulically-operated motor and a flow control device that in one position allows a fluid to pass through the motor while preventing the fluid to flow to the motor and in another position allows the fluid to flow to the motor to operate the motor.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Jacob R. Honekamp
  • Publication number: 20150030429
    Abstract: The invention is a device which uses stored pressure to pump waste and a corresponding method of use. Waste is stored in a first chamber and the chamber is subsequently sealed by a valve and pressurised prior to a second valve opening. The pressurised waste is thereby ejected from the pressure chamber down an outlet pipe.
    Type: Application
    Filed: January 17, 2013
    Publication date: January 29, 2015
    Inventor: Andrew SMITH
  • Publication number: 20150030430
    Abstract: This invention is relates to water turbine power. In particular, the invention relates to a water turbine for generating power in a body of water. There is provided a turbine for operation in a body of water for the generation of power, the turbine comprising: (a) a housing having an inlet for receiving water and an outlet for allowing water to exit; and (b) a power generation unit disposed in the housing and intermediate the inlet and outlet, the power generation unit comprising two propellers for rotation about an axis in response to water flow, wherein the inlet comprises a flared outer end for channelling the water towards the power generation unit, and a truncated cone disposed within the flared outer end of the inlet, the flared portion of the truncated cone protrudes the inlet.
    Type: Application
    Filed: December 12, 2011
    Publication date: January 29, 2015
    Applicant: ENGTEK PTE LTD
    Inventors: Chee Wah Hon, Bert De Wijs
  • Publication number: 20150030428
    Abstract: A method for servicing a gas turbine engine to enhance the power output of the gas turbine engine including a control system, inlet guide vanes, and a third stage power turbine nozzle is disclosed. The control system includes an inlet guide vane module. The method includes increasing an operating range of each inlet guide vane to at least 62 degrees. The method also includes modifying a total flow area of the third stage power turbine nozzle by 2% to 12%, the total flow area including flow areas between adjacent airfoils in the third stage power turbine nozzle.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: SOLAR TURBINES INCORPORATED
    Inventors: Daniel William Burnes, Daniel Joseph Reitz, Jamaal A. Sanders
  • Publication number: 20150030431
    Abstract: A blade ring for an axial turbomachine is provided, having an outer surface that is arranged on an outer ring and faces radially inwards, and an inner surface that is arranged on an inner ring and faces radially outwards, the surfaces being arranged concentrically and parallel to one another and delimiting an annular flow channel that tapers in the main flow direction of the axial turbomachine, as well as at least one adjustment blade that is arranged so as to be displaceable, in the flow channel, parallel to a surface line of one of the surfaces by a guiding device, and that is able to be fixed, in a predetermined position, to at least one of the rings.
    Type: Application
    Filed: November 7, 2012
    Publication date: January 29, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventor: Armin de Lazzer
  • Patent number: 8939706
    Abstract: Turbine and compressor casing abradable component embodiments for turbine engines, with composite grooves and vertically projecting rows of ridges in planform patterns, establishing upper and lower wear zones. The lower wear zone reduces, redirects and/or blocks blade tip downstream airflow leakage, while the upper wear zone is optimized to minimize blade tip gap and wear by being more easily abradable than the lower zone. An elongated first ridge in the lower wear zone terminates in a continuous surface plateau. A plurality of second ridges or nibs, separated by grooves, project from the plateau, forming the upper wear zone. Each of the second ridges has a planform cross section smaller than the plateau planform cross section and a height smaller than the first ridge height. Some embodiments of the second ridges have spacing, planform cross sections, heights and separating groove dimensions selected for shearing when contacted by turbine blade tips.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 27, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Ching-Pang Lee, Kok-Mun Tham, Gm Salam Azad, Zhihong Gao, Neil Hitchman, David G. Sansom, Barrry L. Allmon, Jonathan E. Shipper, Jr., Cora Schillig, Gary B. Merrill, Dimitrios Zois, Ramesh Subramanian
  • Patent number: 8939705
    Abstract: Turbine and compressor casing abradable component embodiments for turbine engines, with composite grooves and vertically projecting rows of first ridges in planform patterns, to reduce, redirect and/or block blade tip airflow leakage downstream into the grooves rather than from turbine blade airfoil high to low pressure sides. The abradable component embodiments have a multi-depth grooves formed in the abradable substrate surface between pairs of elongated continuous tip surface first ridges. These ridge and multi-depth groove embodiments have first lower and second upper wear zones. The lower zone, in the deeper grooves, optimizes engine airflow characteristics, while the upper zone, in the shallower grooves, is optimized to minimize blade tip gap and wear by being more easily abradable than the lower zone.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 27, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Ching-Pang Lee, Kok-Mun Tham
  • Patent number: 8939707
    Abstract: Turbine and compressor casing abradable component embodiments for turbine engines, with composite grooves and vertically projecting rows of stepped first ridges in planform patterns, to reduce, redirect and/or block blade tip airflow leakage downstream into the grooves rather than from turbine blade airfoil high to low pressure sides. Each stepped first ridge has a first portion proximal the substrate surface with a pair of first opposed lateral walls terminating in a plateau, and a second portion terminating in a ridge tip. These ridge or rib embodiments have first lower and second upper wear zones. The lower zone, which at and below first portion height, optimizes engine airflow characteristics, while the upper zone, between the plateau and the second portion ridge is optimized to minimize blade tip gap and wear by being more easily abradable than the lower zone.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 27, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Ching-Pang Lee, Kok-Mun Tham, Gm Salam Azad, Zhihong Gao, Neil Hitchman, David G. Sansom, Barrry L. Allmon
  • Patent number: 8939709
    Abstract: A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating component and generating a parameter signal reflective of the clearance. The method further includes generating a control signal to at least one actuator based on the parameter signal and moving at least a portion of the non-rotating component relative to the rotating component to change the clearance.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: January 27, 2015
    Assignee: General Electric Company
    Inventors: Biju Nanukuttan, Rakesh Adoor, Hariharan Sundaram, James Adaickalasamy, Prasad Punna
  • Patent number: 8939704
    Abstract: A method for operating a multistage compressor is provided. The method includes monitoring the pump limit, wherein at least a first measurement parameter measured during operation is compared to a reference parameter. The reference parameter is characteristic of reaching the surge limit or a specific distance of the operating point from the surge limit. A multistage compressor is also provided. In order to enlarge the operating range without risking safety, it is proposed that each stage to be monitored individually for the onset of the surge.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: January 27, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Georg Winkes
  • Publication number: 20150023776
    Abstract: A fluid cooling arrangement in a gas turbine engine for aerospace propulsion includes an inner structure. Also included is an outer structure disposed radially outwardly of the inner structure, the outer structure and the inner structure defining a bypass flow path. Further included is at least one strut operatively coupling the inner structure to the outer structure. Yet further included is at least one cooling tube formed within the at least one strut, the at least one cooling tube configured to cool a fluid passing through the at least one cooling tube upon convective cooling of the at least one strut as air passes through the bypass flow path and over the at least one strut.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventors: Lubomir A. Ribarov, James S. Elder, Leo J. Veilleux, JR.
  • Publication number: 20150023777
    Abstract: A compressor is disclosed herein. The compressor may include a shroud cavity. The compressor also may include a flow directing device positioned within the shroud cavity. The flow directing device may be configured to direct a flow within the shroud cavity.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventor: Gerald Austin Rawcliffe
  • Patent number: 8936429
    Abstract: A method and system for controlling clearance between the tips of blades of a turbine rotor in a gas turbine airplane engine and a turbine ring of a casing surrounding the blades. A valve is controlled to act on a flow rate and/or a temperature of air directed against the casing. The valve is of the on/off type for switching between an open state and a closed state in a determined reaction time, the valve control module including a corrector for determining a first binary control signal that can take a first value corresponding to an open state and a second value corresponding to a closed state of the valve. The corrector includes a time-delay module for determining a binary control signal, with the duration between two successive changes of state in the control signal being not less than the reaction time of the valve.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: January 20, 2015
    Assignee: SNECMA
    Inventors: Bruno Robert Gaully, Cedrik Djelassi, Cecile Marot
  • Publication number: 20150016944
    Abstract: A gas turbine component having a cooling passage is disclosed. In one form, the passage is oriented as a turned passage capable of reversing direction of flow, such as a turned cooling hole. The gas turbine engine component can include a layered structure having cooling flow throughout a region of the component. The cooling hole can be in communication with a space in the layered structure. The gas turbine engine component can be a cast article where a mold can be constructed to produce the cooling hole having a turn.
    Type: Application
    Filed: December 27, 2013
    Publication date: January 15, 2015
    Inventors: Peter L. Vandervaart, Jeffrey F. Rhodes, Okey Kwon, Tab M. Heffernan
  • Publication number: 20150016954
    Abstract: An blade outer air seal support assembly includes a main support member configured to support a blade outer air seal. The main support member extends generally axially between a leading edge portion and a trailing edge portion. The leading edge portion is configured to be slidably received within a groove established by the blade outer air seal. A support tab extends radially inward from the main support member toward the blade outer air seal. The support tab configured to contact an extension of the blade outer air seal to limit relative axial movement of the blade outer air seal. A gusset spans between the support tab and the main support member.
    Type: Application
    Filed: October 2, 2014
    Publication date: January 15, 2015
    Inventors: Anne-Marie B. Thibodeau, Bruce E. Chick, Thurman Carlo Dabbs, James N. Knapp, Dmitriy A. Romanov, Russell E. Keene, Jeffrey Vincent Anastas
  • Publication number: 20150016947
    Abstract: An apparatus and method for cooling a dual, walled component is disclosed herein. An augmented cooling system according to the present disclosure includes transporting a cooling fluid through one wall of a cooling pathway formed between two opposing spaced apart walls of the dual walled component. The cooling fluid can be deflected away from one wall of the cooling pathway with a first trip strip as the cooling fluid traverses along the cooling pathway. The cooling fluid can be deflected away from the opposing wall of the cooling pathway with a second trip strip as the cooling fluid continues traversing along the cooling pathway. The cooling fluid can then be discharged from the cooling pathway through the opposing wall of the dual walled component.
    Type: Application
    Filed: December 31, 2013
    Publication date: January 15, 2015
    Inventor: Okey Kwon
  • Publication number: 20150016948
    Abstract: A demand-based load balancing function may be provided by one or more drive controllers that takes advantage of the affinity laws to linearize the control of the variable of interest (e.g., flow, pressure, etc.). Each drive controller may be set up by the user simply inputting a few values into the drive controller. Based on the inputs, the drive controllers may interpolate control points using an assumed linear relationship between the variable to be controlled (e.g., pressure) and the current driven to the pump. Feedback data from the system may be used to continually update the drive controllers so as to potentially allow them to better balance power usage to each pump.
    Type: Application
    Filed: August 26, 2011
    Publication date: January 15, 2015
    Applicant: TOSHIBA INTERNATIONAL CORPORATION
    Inventors: Kurt Allen Bihler, David Liu, Mark Douglas Rayner
  • Publication number: 20150016952
    Abstract: Gas Pressure Reduction Generator (GPRG) systems and methods for implementing a GPRG system are provided, where the GPRG systems comprise a gas inlet configured to receive a pressurized gas flow, at least one expander in gas flow receiving communication with the gas inlet wherein the expander is operable to convert the pressurized gas flow into mechanical energy and a depressurized gas flow, and a generator configured to convert the mechanical energy into electrical energy.
    Type: Application
    Filed: September 5, 2014
    Publication date: January 15, 2015
    Inventor: Andrew Oxner
  • Publication number: 20150016945
    Abstract: An embodiment of a gas turbine engine having a liner and casing is disclosed. The liner is disposed between the casing and a rotatable turbomachinery component. In one form, the rotatable turbomachinery component is a turbofan engine. The liner can be thin relative to a distance between the liner and the casing. Protrusions can be used between the liner and the casing. The protrusions can be a rib and can extend from the casing or the liner. An insert, such as an abradable surface, can be used with the liner. A filler can be used in the space between the liner and the casing.
    Type: Application
    Filed: December 27, 2013
    Publication date: January 15, 2015
    Inventors: Matthew J. Kappes, Matthew A. Scott, Chris J. Winfield, Jared J. Schnieder
  • Publication number: 20150016949
    Abstract: A method of controlling tip clearance of rotor blades from a surrounding casing in a gas turbine engine. The method comprising the steps of performing a first run of the gas turbine engine, shutting down the gas turbine engine and starting the gas turbine engine for a second run. The method further comprises measuring at least one performance parameter during or after the first engine run but before a time selected at which air within the gas turbine engine, soaked to the approximate temperature of one or more surrounding engine components, is substantially displaced as a consequence of the second run. The thermal condition of at least part of the engine in accordance with the measured performance parameters is then recorded. Finally the recorded thermal condition is retrieved and the temperature of the casing is controlled during at least part of the second run in a manner dependent on it.
    Type: Application
    Filed: June 16, 2014
    Publication date: January 15, 2015
    Inventor: Marcus Donegan Wood SMITH
  • Publication number: 20150016953
    Abstract: A compressor assembly that has a compressed air tank having a vibration absorption member. The vibration absorption member can exert a pressure on a portion of the compressed air tank. A method of controlling sound emitted from a compressor assembly, by using a vibration absorber which applies a force against the compressed gas tank. Controlling the sound level of the compressed gas tank is accomplished by absorbing vibration from the compressed gas tank by which exerting a pressure on a portion of the compressed gas tank.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 15, 2015
    Inventors: Stephen J. VOS, Scott D. CRAIG
  • Publication number: 20150016950
    Abstract: A device and method for discharging sealing air in a turbofan engine includes a primary flow duct that extends through a core engine of the turbofan engine and a bypass duct. The device has at least one bearing chamber sealed by sealing air of the turbofan engine, said bearing chamber surrounding at least one oil-lubricated bearing element for mounting a mechanical component of the turbofan engine. At least one discharge path for escaping sealing air is provided, which extends up to the bypass duct of the turbofan engine.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventor: Sascha BURGHARDT
  • Publication number: 20150016946
    Abstract: An apparatus and method for controlling a clearance between the blades of a turbomachinery component and flow forming surface are disclosed herein, and includes controlling the clearance by moving the surface axially relative to the turbomachinery component. In one embodiment the apparatus includes an impeller rotatable about a first axis, a shroud encircling the impeller, and a first ring encircling the first axis. An actuator is operably engaged with the first ring to pivot the first ring about the first axis. The apparatus also includes at least one cam engaged with the first ring and at least one cam follower engaged with the shroud. Pivoting movement of the first ring about the first axis results in the at least one cam urging the at least one cam follower and the shroud along the first axis to vary a distance between the plurality of blades and the shroud.
    Type: Application
    Filed: December 30, 2013
    Publication date: January 15, 2015
    Inventor: Nathan W. Ottow
  • Publication number: 20150016951
    Abstract: A facility, in particular a power plant, is provided having a steam turbine and a bypass station for diverting a working medium, as required, for the steam turbine around the steam turbine, wherein at least one resonance absorber is provided for the bypass station.
    Type: Application
    Filed: November 7, 2012
    Publication date: January 15, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Berenbrink, Frank Deidewig, Holger Gedanitz, Dirk Huckriede, Stephan Minuth, Bernd Prade, Horst Uwe Rauh, Stephan Schestag
  • Patent number: 8932001
    Abstract: Certain embodiments of the invention may include systems, methods and apparatus for providing a labyrinth seal. In an example embodiment, a method is provided for sealing a flow path between a stationary element and a rotating element of a turbomachine. The method can include disposing at least one fixture on an inner surface of a stationary element associated with the turbomachine; disposing a packing ring linked via a spring element to the fixture wherein the packing ring comprises at least one bore; and disposing, according to a predetermined profile, a plurality of interdigitated packing ring teeth and rotor teeth intermediate to the packing ring and the rotating element; wherein the bore, packing ring teeth, and rotor teeth, cooperate to counter a moment associated with one or more axial forces.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: January 13, 2015
    Assignee: General Electric Company
    Inventors: Xiaoqing Zheng, Hrishikesh Deo, Binayak Roy
  • Publication number: 20150010383
    Abstract: A centrifugal refrigerant compressor system includes an impeller connected to a shaft. A diffuser is arranged on a downstream side of the impeller and is configured to regulate refrigerant flow exiting the impeller. A magnetic bearing supports the shaft. A sensing element is configured to produce an output relating to a shaft condition. A controller is configured to receive the output and determine an undesired impeller operating condition based upon the shaft condition. The controller is configured to command the diffuser to a desired state in response to the undesired impeller operating condition.
    Type: Application
    Filed: September 14, 2011
    Publication date: January 8, 2015
    Applicant: Danfodd Turbocor Compressors B.V.
    Inventors: Lin Sun, Jose Alvares, Mogens Rasmussen
  • Publication number: 20150010382
    Abstract: Turbine airflow is modulated to improve performance during part load operation in a turbomachine. The turbomachine includes a compressor, a turbine with a plurality of stages, and a diffuser. Modulating the airflow includes extracting airflow from an upstream component of the turbomachine, admitting the extracted airflow into a rear stage of the plurality of stages. Admitting airflow into the rear stage serves to increase rear stage loading and alter an energy distribution in the rear stage during part load operation.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 8, 2015
    Inventors: Moorthi Subramaniyan, Joshy John
  • Publication number: 20150000268
    Abstract: The method includes moving at least one of a first support and a second support to vary a position of the plurality of main blades and tandem blades relative to each other to control one or more flow control characteristics across the turbine. The turbine includes a nozzle having the plurality of main blades and tandem blades. The plurality of main blades are coupled to the first support and the plurality of tandem blades are coupled to the second support disposed spaced apart from the first support.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Cathal Clancy, Daniel Edward Loringer, Rodrigo Rodriguez Erdmenger, Vittorio Michelassi
  • Publication number: 20150003957
    Abstract: A turbine assembly for a turbocharger can include a C-shaped seal that includes an inner diameter, an outer diameter, an axis aligned parallel to a rotational axis of a turbine wheel, a lower lip that contacts a lower axial face of an outer surface of a shroud component along an annular portion of the shroud component, an upper lip that contacts a lower axial face of an inner surface of a turbine housing, and a wall portion that extends between the lower lip and the upper lip. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventors: Arnaud Gerard, Shankar Pandurangasa Solanki, Nicolas Morand, Sylvain Mulot, Vincent Eumont, Francis Abel, Stephane Sibille
  • Publication number: 20150003956
    Abstract: An example variable vane scheduling method includes adjusting variable vanes from a position based on a first schedule to a position based on a different, second schedule in response to a control feature. An example method of controlling flow through a compressor of a turbomachine includes moving variable vanes to positions that allow more flow into the compressor in response to bleed air being communicated away from the compressor.
    Type: Application
    Filed: November 6, 2012
    Publication date: January 1, 2015
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: UNITED TECHNOLOGIES CORPORATION
  • Publication number: 20150003959
    Abstract: A gas turbine engine is disclosed which includes a bypass passage that in some embodiments are capable of being configured to act as a resonance space. The resonance space can be used to attenuate/accentuate/etc a noise produced elsewhere. The bypass passage can be configured in a number of ways to form the resonance space. For example, the space can have any variety of geometries, configurations, etc. In one non-limiting form the resonance space can attenuate a noise forward of the bypass duct. In another non-limiting form the resonance space can attenuate a noise aft of the bypass duct. Any number of variations is possible.
    Type: Application
    Filed: December 26, 2013
    Publication date: January 1, 2015
    Applicant: Rolls-Royce North American Technologies Inc.
    Inventor: Robert T. DUGE
  • Publication number: 20150000247
    Abstract: A system for detecting airfoil clashing within a compressor comprises a compressor having a row of rotor blades and an adjacent row of stator vanes, an acoustic emission detection system that generates an acoustic emissions signal, a rotor blade monitoring system that generates a blade pass signal, and a processing unit that is in electronic communication with the acoustic emission detection system and the rotor blade monitoring system. The processing unit is configured to fuse the acoustic emissions signal with the blade pass signal to provide a combined signal that is indicative of an airfoil clashing event between the rotor blades and the adjacent row of stator vanes.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventor: Achalesh Kumar Pandey
  • Publication number: 20150003958
    Abstract: An apparatus and method for controlling turbine blade tip clearance is disclosed herein. A blade track assembly can include a blade track carrier having a plurality of slots and rails defined by paths that vary in radial position as a function of circumferential location. An expansion ring can be operably coupled with the slots of the blade track carrier. A plurality of blade track segments can be operably coupled with the expansion ring and engageable with the rails of the blade track carrier such that expansion and contraction of the expansion ring causes radially outward movement and radially inward movement, respectively, of the blade track segments.
    Type: Application
    Filed: December 20, 2013
    Publication date: January 1, 2015
    Inventors: Richard C. Uskert, Joseph P. Lamusga, Aaron D. Sippel
  • Publication number: 20140377051
    Abstract: Systems and methods are disclosed for a turbocharger compressor, the system comprising: an actuatable annular disk comprising choke slots therein; an outer annular disk comprising choke slots therein; and an actuator to rotate the actuatable annular disk relative to the outer annular disk to vary alignment of the choke slots of the actuatable annular disk and the outer annular disk. The actuator may be controlled by an engine controller responsive to operating conditions of the compressor and actuated to align choke slots. Alignment of the choke slots allows air to be drawn into the impeller effectively expanding the compressor flow capacity to prevent compressor choke.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Harold Huimin Sun, Dave R. Hanna, Thomas Polley, Liangjun Hu, Daniel William Kantrow
  • Publication number: 20140377100
    Abstract: An improved bearing and shaft assembly for jet assemblies is disclosed. The improved bearing and shaft assembly includes a bearing assembly having an outer bearing member and an inner bearing member, and a shaft assembly having a shaft member, a shaft protection member, and a locking mechanism. Also, a jet assembly that includes the improved bearing and shaft assembly is disclosed. The jet assembly may be coupled to a motor assembly. The jet assembly further includes the housing that includes at least one inlet aperture and at least one outlet aperture, and an impeller positioned within a cavity of the housing. In addition, a pump comprising a motor assembly and a jet assembly that includes the improved bearing and shaft assembly is disclosed. Furthermore, a method for displacing a fluid using the improved bearing and shaft assembly is disclosed.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 25, 2014
    Applicant: Luraco Technologies, Inc.
    Inventors: KEVIN LE, Thanh LE
  • Publication number: 20140373554
    Abstract: A method of monitoring a gas turbine engine start system includes monitoring a pressure in a starter air duct in communication with a starter air valve which is in communication with an air turbine starter (ATS); identifying an expected transient pressure response in the starter air duct; and identifying the starter air valve as degraded if the expected transient pressure response does not occur after an open command to the starter air valve.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventors: John T. Pech, W. Dean Kavalkovich
  • Patent number: 8915697
    Abstract: An articulated erection structure is disclosed for use in mobilizing a wind energy extraction device. The wind turbine has blades capable of being disposed in side-by-side, parallel alignment for transportation. The erection structure has a mast that can be configured in a horizontal orientation for transportation with the turbine generator lowered, and reconfigured for power-generating operations in a vertical orientation with the turbine raised. The turbine generator may be mounted with an erection structure to a variety of transportation platforms, such as on a self-propelled vehicle, towed trailer, or transportation pallet. A hybrid system may integrate photovoltaic cells in addition to a wind energy extraction device.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: December 23, 2014
    Assignee: Natural Power Concepts Inc.
    Inventors: John Pitre, Stuart Huang
  • Publication number: 20140369804
    Abstract: The present disclosure relates to shroud bleed in centrifugal compressors. An air-limiting component 130 may be located adjacent to a shroud 120. The shroud 120 may have a primary bleed slot 210, and the air-limiting component 130 may have a secondary bleed slot 310. The primary bleed slot 210 and the secondary bleed slot 310 may overlap at an effective bleed slot location. The air-limiting component 130 may rotate relative to the shroud 120, which may change a streamwise location of the effective bleed slot.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Benjamin E. Fishler
  • Publication number: 20140371919
    Abstract: A centrifugal compressor for compressing a refrigerant vapour in a refrigeration cycle. The compressor comprises an impeller drive shaft (28) supported by first and second radial bearings (32) for rotation within the compressor housing and an impeller assembly including at least one centrifugal impeller wheel mounted on the impeller drive shaft to rotate with the impeller drive shaft. The first and second radial bearings are hydrodynamic fluid bearings in which the bearing fluid is the refrigerant vapour. The compressor further comprising a conduit (36) for supplying a portion of the refrigerant vapour from the impeller assembly to the first and second fluid bearings.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 18, 2014
    Inventor: Michael Creamer
  • Publication number: 20140369806
    Abstract: An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a compressor recirculation valve (CRV) having a pneumatic control chamber, and a throttle aspirator having its motive section in fluid communication with an inlet of the throttle and its discharge section in fluid communication with an outlet of the throttle and its suction port in fluid communication with the pneumatic control chamber of the CRV. Such an engine system automatically minimizes surge during boost without a control system activating the CRV. Here, the CRV operates purely on the changes in pressure within the system forming a loop that resets itself. In another embodiment, a gate valve and a vacuum canister may be included rather than having the throttle aspirator directly connected to the CRV's pneumatic control chamber.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: Dave Fletcher, Brian M. Graichen, Keith Hampton, Matt Gilmer, James H. Miller, Steve Long
  • Publication number: 20140369803
    Abstract: Embodiments are disclosed that relate to controlling a compressor. In one example, method of controlling a compressor comprises regulating a discharge capacity of the compressor via a control current supplied to a control device, holding the control current supplied to the control device at substantially zero amperes for a first duration, and stepping the control current from substantially zero amperes to a sustainable current that provides a sustainable level of a performance parameter of the compressor.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 18, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Nicholas Dashwood Crisp, Mike Rowland, Peter Douglas Kuechler
  • Publication number: 20140369805
    Abstract: An air conditioner for determining whether a human body exists in a sensing region using a plurality of heat sensors, as human body-detecting sensors, installed in the air conditioner and arranged at regular intervals. The air conditioner recognizing, when a human body has been detected, angles formed between the human body-detecting sensors and the human body, and calculating a distance from the human body-detecting sensors to the human body based on the recognized angles and a distance between the human body-detecting sensors, and adjusting a direction and speed of wind according to the calculated distance to the human body, and a control method of the air conditioner. Also, the air conditioner may be used as a security sensor when it does not operate.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Seong Man PARK
  • Patent number: 8911200
    Abstract: A method of assembling together titanium parts and steel parts by diffusion welding, the method interposing two thin layers of niobium or vanadium and copper respectively between a titanium part and a steel part, evacuating the assembly of parts and interposed metal layers, and subjecting the assembly to hot isostatic compression at a temperature lying in a range 900° C. to 950° C. and at a pressure lying in a range 1000 bars to 1500 bars for about two hours. The method can be applied to fabricating turbine shafts for turbomachines.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: December 16, 2014
    Assignee: Snecma
    Inventors: Raphael Couturier, Jean-Pierre Ferte, Olivier Gillia, Xavier Firmin Camille Jean Lescure, Bruno Riccetti
  • Publication number: 20140363269
    Abstract: A compressor control device includes an inlet guide vane opening degree control unit configured to control an opening degree of an inlet guide vane. The inlet guide vane opening degree control unit includes an inlet guide vane opening degree command value calculation unit configured to calculate an inlet guide vane opening degree command value based on an outlet pressure detection value and a plurality of inlet guide vane opening degree correction units each configured to correct the inlet guide vane opening degree command value based on the post-merger pressure detection value and a corresponding inlet flow rate detection value for each of a plurality of upstream-most compressor bodies.
    Type: Application
    Filed: February 20, 2013
    Publication date: December 11, 2014
    Inventors: Kazuhiro Takeda, Yosuke Nakagawa, Hiroyuki Miyata, Naoki Mori
  • Publication number: 20140363268
    Abstract: It is described a method and a turbine for expanding an organic operating fluid in a Rankine cycle, the method comprising the step of feeding the operating fluid to a turbine provided with a plurality of arrays of stator blades (S1-S4, AR) alternating with a plurality of arrays of rotor blades (R1-R5), to define corresponding turbine stages, constrained to a shaft which rotates on the respective rotation axis. The method comprises the further steps of: a) causing a first expansion of the operating fluid in one or more radial stages (S1-S3, R1-R3) of the turbine, b) diverting (AR) the operating fluid exiting from the radial stages in a direction axial and tangential with respect to the rotation axis, and c) causing a second fluid expansion in one or more axial stages (R4, S4, R5) of the turbine. Step b) corresponds to an enthalpy change of the operating fluid equal to at least 50% of the average enthalpy change provided for completing the fluid expansion in the turbine.
    Type: Application
    Filed: December 18, 2012
    Publication date: December 11, 2014
    Applicant: TURBODEN S.R.L.
    Inventors: Mario Gaia, Roberto Bini
  • Publication number: 20140361539
    Abstract: A proportional moving air power transmission and energy collection and control system includes a fixed vertical spindle, a vertical rotational hub and a plurality of wings being supported around the vertical hub in 360°. Each of the wings has a blunt leading end and a pointy trailing end and defining an outer surface and an inner surface. In a fully opened position, the trailing end of each wing is moved away from the vertical hub to a diameter of the wing assembly to drive the vertical hub to rotate. In a fully closed position, the wings are overlapped with each other end-to-end to form a hollow cylinder-like structure to furl, such that the diameter of the wing assembly is minimized for facing the wind at all direction.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 11, 2014
    Inventor: Jerry Austin Carter