Patents Assigned to ALSTOM Technologies Ltd
  • Solar receiver panel and support structure
    Patent number: 9341392
    Abstract: In a solar receiver arrangement 300 with a support structure 600, the support structure 600 includes a plurality of tie members 700 for tangentially coupling a plurality of tubes 510, for forming at least one receiver panel 500, in such a manner that the at least one tie member 700 is coupled in at least one crotch portion 520 between a pair of tubes 510. The support structure 600 further includes a plurality of panel support members 800 coupled to the receiver panel 500 selectively in at least one crotch portion 520 between a pair of tubes 510. Furthermore, at least one latching member 900 is configured to detachably attach the plurality of panel support members 800 for engaging the plurality of receiver panels 500.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: May 17, 2016
    Assignee: ALSTOM Technology Ltd.
    Inventor: Ronald G. Payne
  • COOLING FOR TURBINE BLADE PLATFORM-AEROFOIL JOINTS
    Publication number: 20160130951
    Abstract: The invention concerns a turbine blade for a gas turbine having a platform part and an aerofoil part. The platform part includes a platform surface arranged to be attached to a corresponding aerofoil surface of the aerofoil part. The turbine blade further includes a cooling duct for cooling the platform and aerofoil surfaces, the cooling duct having at least one cavity in the platform surface and at least one cavity in the corresponding aerofoil surface, and the platform and aerofoil surface cavities are aligned such that when the platform surface and the aerofoil surface are touching, the cooling duct remains open. This provides a reliable cooling of both the platform and aerofoil surfaces.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 12, 2016
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Marc HENZE, Joerg KRÜCKELS, Laura BOGDANIC
  • DAMPING INLAY FOR TURBINE BLADES
    Publication number: 20160130953
    Abstract: The invention concerns a turbine blade comprising a surface, a recess within the surface, and a damping inlay within the recess. The damping inlay comprises a chamber with a damping material, for example particles. The damping inlay should substantially maintain the aerodynamic profile of the blade to enable normal operation. A further embodiment of the invention describes the method of manufacture of a turbine blade with a damping inlay. The method comprises the steps of manufacturing a turbine blade having a surface and a recess in the surface, and providing one or more damping inlays within the recess such that the damping inlay substantially maintains the aerodynamic profile of the blade, the damping inlay comprising a chamber and a damping material disposed within the chamber.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 12, 2016
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Herbert BRANDL, Arrigo BERETTA-MÜLLER
  • Acoustic damping device
    Patent number: 9334804
    Abstract: An acoustic damper includes a neck and a damping volume. The neck has a mouth being in fluid connection with a chamber. The chamber is limited by an inner surface of at least one wall. The acoustic damper device includes a recess located between the mouth of the neck and the inner surface of the wall.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 10, 2016
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Mirko Ruben Bothien, Devis Tonon, Franklin Marie Genin, Douglas Anthony Pennell
  • Axial flow gas turbine
    Patent number: 9334754
    Abstract: In an axial flow gas turbine (30), a substantial reduction of the consumption of cooling air can be achieved by providing, within a turbine stage (TS), structure (39-44) to reuse the cooling air that has already been used to cool, especially the airfoils of, the vanes (33) of the turbine stage (TS), for cooling the stator heat shields (38) of that turbine stage (TS) downstream of the vanes (33).
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 10, 2016
    Assignee: ALSTOM TECHNOLOGY LTD.
    Inventors: Alexander Anatolievich Khanin, Valery Kostege
  • Control of load rejection
    Patent number: 9334750
    Abstract: A control system is provided for a power generating system having a gas turbine, a flue gas exhaust stage and a blow-off valve assembly. The gas turbine includes a compression stage, a combustion stage and a driveshaft. The blow-off valve assembly is configured to selectively provide fluid communication between the combustion stage and the flue gas exhaust stage. The control system includes a controller configured to output a signal causing the blow-off valve assembly to provide the fluid communication in response to a sudden de-loading of the gas turbine.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: May 10, 2016
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Martin Liebau, Peter Marx, Sami Hashmi
  • CAN COMBUSTION CHAMBER
    Publication number: 20160123593
    Abstract: The can combustion chamber includes a casing housing a plurality of cans. Each can includes a wall and a perforated cooling liner around the wall. Cooling liners of adjacent cans have staggered perforations.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Applicant: ALSTOM Technology Ltd
    Inventors: Felix BAUMGARTNER, Michael Thomas MAURER, Christof GRABER
  • COMBUSTOR ARRANGEMENT FOR A GAS TURBINE
    Publication number: 20160123597
    Abstract: A combustor arrangement for a gas turbine includes a first burner, a first combustion chamber, a mixer for admixing a dilution gas to the gases leaving the first combustion chamber during operation, a second burner, and a second combustion chamber arranged sequentially in a fluid flow connection. These elements of the combustor arrangement are arranged in a row to form a flow path extending between the first combustion chamber and the second burner. The combustor arrangement includes acentral lance body arranged inside the flow path and extending from the first burner through the first combustion chamber into the mixer and into the second burner, wherein the lance body includes a fuel duct for providing fuel for the first burner and/or for the second burner.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 5, 2016
    Applicant: ALSTOM Technology Ltd
    Inventors: Douglas Anthony PENNELL, Urs BENZ, Adnan EROGLU, Ewald FREITAG, Mirko Ruben BOTHIEN, Andrea CIANI
  • COMBUSTOR ARRANGEMENT FOR A GAS TURBINE
    Publication number: 20160123595
    Abstract: A combustor arrangement for a gas turbine includes a first burner, a first combustion chamber, a mixer for admixing a dilution gas to the gases leaving the first combustion chamber during operation, a second burner, and a second combustion chamber arranged sequentially in a fluid flow connection. These elements of the combustor arrangement are arranged in a row to form a flow path extending between the first combustion chamber and the second burner. The arrangement includes a central lance body in the flow path, extending from the first burner into the second burner, which lance body includes at least one air duct for providing air for the mixer, wherein the air is injected into the combustor through air supply elements.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 5, 2016
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Adnan EROGLU, Andrea CIANI, Douglas Anthony PENNELL
  • Combined cycle power plant black start method where steam turbine provides increase in demanded load
    Patent number: 9328668
    Abstract: A reliable and flexible black start network restoration for a combined cycle power plant can be achieved by synchronizing a steam turbine and ramping that steam turbine up to an operating point where a maximum power increase is achieved. The resulting steam turbine load change can be compensated by the gas turbine. The increase in the demanded load can be provided by the steam turbine. The load of the steam turbine can also be gradually reduced to increase its load-increasing capacity.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 3, 2016
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Jan Schlesier, Hamid Olia, Martin Schoenenberger, Martin Liebau
  • Retrofitting methods and devices for large steam turbines
    Patent number: 9328612
    Abstract: A method of replacing rotating metal blades of a steam turbine inserted into a rotor having one or more existing grooves for inserting root sections of the metal blades is described, the method including the steps of providing replacement blades having radially inwards directed root sections of fiber-reinforced composite material, changing the shape of the one or more grooves in the rotor to form a cavity for the insertion of the root sections of fiber-reinforced composite material and inserting the replacement blades into the rotor.
    Type: Grant
    Filed: September 29, 2012
    Date of Patent: May 3, 2016
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Sigurd Kubel, Rolf Hunziker
  • Method to minimize input current harmonics of power systems such as ESP power systems
    Patent number: 9331561
    Abstract: Disclosed is a method for the improvement of the line quality in a system, in which a common feeding (1), via at least one distribution transformer (3), feeds at least two non-linear loads (11) drawing non-sinusoidal currents from the common feeding (1), wherein between the common feeding (1) and the distribution transformer (3) there is at least one primary side transformer line (2) and between the at least one distribution transformer (3) and the loads (11) there is at least one lower voltage secondary side transformer line (22), wherein at least one active filter (24) attached to at least one lower voltage secondary side transformer line (22) is used for the attenuation or elimination of higher order harmonics experienced by the common feeding (1). Furthermore a high power distribution system for use of such a method is disclosed, in particular for the operation of an electrostatic precipitator.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: May 3, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Johann Walter Kolar, Thiago Batista Soeiro, Jürgen Biela, Per Ranstad, Jörgen Linner
  • Core
    Patent number: 9331475
    Abstract: A magnetic fault current limiter core (10a) comprising at least one first magnetic element (12) and at least one second magnetic element (14), the magnetic elements (12,14) being arranged to define a substantially parallel array of magnetic elements (12,14), the or each first magnetic element (12) including a soft magnetic material and the or each second magnetic element (14) including a hard magnetic material, wherein the or each soft magnetic material in a non-saturated state has a higher magnetic permeability than the or each hard magnetic material.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: May 3, 2016
    Assignee: Alstom Technology Ltd.
    Inventor: Jonathan Peter Sturgess
  • Method and a device for treating effluent seawater from a seawater scrubber
    Patent number: 9327230
    Abstract: A gas cleaning system including a wet scrubber (14) for removal of sulphur dioxide from a gas and an oxidation basin system (42) for receiving effluent generated in the removal of sulphur dioxide from the process gas. The oxidation basin system (42) comprises an oxidation basin (43) for containing the effluent during treatment thereof, an oxygen supply system (47) for supplying oxygen to the effluent in the oxidation basin (43), and a contacting system for bringing the effluent into contact with an enzyme which catalyzes the oxidation of bisulphite and/or sulphite ions.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: May 3, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Fredrik Jens Brogaard, Mikael Larsson
  • Dynamic and automatic tuning of a gas turbine engine using exhaust temperature and inlet guide vane angle
    Patent number: 9328669
    Abstract: Methods and systems are provided for dynamically auto-tuning a gas turbine engine. Initially, parameters of the gas turbine engine are monitored to determine that they are within predefined upper and lower limits such that a margin exists. A first incremental adjustment of an inlet guide vane (IGV) angle is performed. If the monitored parameters are still within the predefined upper and lower limits, a second incremental adjustment of the IGV angle is performed. It is determined that the monitored parameters are still within the predefined upper and lower limits. Additionally, it is determined that a predefined value of the IGV angle has been reached such that the IGV angle is not to be further increased or decreased.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 3, 2016
    Assignee: Alstom Technology Ltd
    Inventors: Hany Rizkalla, Donald Gauthier, Peter John Stuttaford, Sumit Soni
  • COMBINED CYCLE POWER PLANT
    Publication number: 20160115826
    Abstract: The present invention generally relates to a combined cycle power plant. More in particular, the present invention relates to a plant where the temperature of the flow of gas exiting the turbine is lowered without the need of employing high cost nickel alloys within the heat recovery steam generator.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 28, 2016
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventor: Adnan EROGLU
  • Removal of mercury emissions
    Patent number: 9321002
    Abstract: A system for removing gaseous pollutants, such as mercury from flue gases of a solid-fueled furnace (17), includes a sorbent mill (34) that receives superheated steam and a sorbent (28), such as activated carbon, in a partially agglomerated state, that processes the sorbent (28) by de-agglomerating and comminuting the sorbent (28). An educator (35) transports the processed sorbent (28) to a distributor (36) that injects it into the flue gases at a contact location having a temperature between 500° F. and 900° F., whereupon the sorbent (28) adsorbs mercury from the flue gas. A particle collection device (24) removes the processed sorbent (28) having adsorbed mercury, from the flue gas.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: April 26, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Richard C. LaFlesh, John Iovino, Shin Gyoo Kang, Carl D Edberg, Raymond W. Cournoyer
  • Phase angle drift method for loss of mains/grid protection
    Patent number: 9325175
    Abstract: A phase angle drift method for loss of mains/grid protection is disclosed. According to one aspect, an accumulated electrical phase angle drift derived from the difference between the current measured local frequency and the estimated frequency using historical data is compared to an angle threshold. An estimated grid frequency may be calculated based on the historical delay, and the window, over which the estimated frequency is calculated. An addition/subtraction of a phase angle offset value is calculated for a half cycle is performed when the frequency difference between the estimated frequency fnest and the measured frequency fn is greater or equal to a first determined value.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: April 26, 2016
    Assignees: Alstom Technology Ltd., Schneider Electric Energy UK Ltd.
    Inventors: Ryan M. Tumilty, Adam Dysko, Graeme Burt
  • Oxidation control for improved flue gas desulfurization performance
    Patent number: 9321006
    Abstract: A system and method for controlling oxidation of sulfites in a slurry. The system includes a tank having an inlet for receiving a slurry used in wet flue gas desulfurization. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is configured so that at least a portion of the gas received in the tank is dispersed through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration S1 of the slurry received in the tank. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system includes a controller. Software executing on the controller generates a signal indicative of an adjustment of a flow rate of gas into the tank based at least in part on the sulfite concentration S1.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: April 26, 2016
    Assignee: ALSTOM Technology Ltd
    Inventor: Dennis James Laslo
  • Nickel-base alloy for gas turbine applications
    Patent number: 9322089
    Abstract: A nickel-based alloy suitable for casting gas turbine components having a lower density and basic heat treating process while achieving improved strength is disclosed. Multiple embodiments of the alloy are disclosed capable of providing both directionally-solidified and equiaxed castings. Also disclosed is a method of making a cast and heat treated article utilizing the improved nickel-base alloy.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: April 26, 2016
    Assignee: Alstom Technology Ltd
    Inventors: Charles Biondo, J. Page Strohl, Jeffery W. Samuelson, Gerhard E. Fuchs, Stanley T. Wlodek, Ramona T. Wlodek