Patents Assigned to Alstom
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Patent number: 8950187Abstract: A premix burner of the multi-cone type for a gas turbine, that includes a plurality of shells, which are arranged around a central burner axis and are parts of a virtual, axially extending common cone, which opens in a downstream direction, whereby the parts are displaced perpendicular to the burner axis such that a tangential slot is defined between each pair of adjacent shells. A disadvantageous transition piece between the shells and a downstream mixing tube is avoided by bordering the downstream ends of the shells by intersecting planes, which are defined by intersecting the shells with a virtual coaxial cylinder of a predetermined radius.Type: GrantFiled: July 9, 2013Date of Patent: February 10, 2015Assignee: ALSTOM Technology LtdInventors: Ennio Pasqualotto, Hanspeter Knopfel
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Patent number: 8951488Abstract: The present invention relates to a method of cleaning a carbon dioxide rich flue gas stream containing oxygen. The method includes heating the flue gas stream to a temperature suitable for selective catalytic reduction (SCR) of NOX; and reducing at least some of the NOX in the heated flue gas stream to N2 by SCR. Heating of the flue gas stream includes removal of residual oxygen contained in the flue gas by catalytic oxidation of a suitable carburant. The present invention further relates to a gas processing unit.Type: GrantFiled: February 18, 2014Date of Patent: February 10, 2015Assignee: ALSTOM Technology LtdInventor: Olaf Stallmann
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Patent number: 8952256Abstract: A high voltage stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands, and an electric insulation applied around the conductive element. The permittivity at the corners of the electric insulation decreases by less than 60% from an inner insulation zone facing the conductive element towards an outer insulation zone.Type: GrantFiled: June 30, 2011Date of Patent: February 10, 2015Assignee: Alstom Technology Ltd.Inventors: Thomas Baumann, Massimiliano Vezzoli, Dieter Stoll, Johann Haldemann
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Publication number: 20150035364Abstract: A control circuit (20) comprising: first and second terminals (22,24) for respective connection to first and second power transmission lines (26,28); a current transmission path extending between the first and second terminals (22,24) and having first and second current transmission path portions (30,32) separated by a third terminal (34), either or both of the first and second current transmission path portions (30,32) including at least one module (36), the or each module (36) including at least one energy storage device; an auxiliary terminal (42) for connection to ground or the second power transmission line (28); an energy conversion block for removing energy from the power transmission lines (26,28), the energy conversion block extending between the third and auxiliary terminals (34,42) such that the energy conversion block branches from the current transmission path, the energy conversion block including at least one energy conversion element (44); and a control unit (46) which selectively removes theType: ApplicationFiled: December 28, 2012Publication date: February 5, 2015Applicant: ALSTOM Technology LtdInventors: Colin Charnock Davidson, Kevin J. Dyke, Jose Maneiro, David Reginald Trainer, Nnamdi Okaeme
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Patent number: 8943831Abstract: The lance of a burner includes a body that defines a first duct with first nozzles for injecting a liquid fuel and a second duct with second nozzles for injecting a gaseous fuel. Outlets of the first nozzles are spaced apart from outlets of the second nozzles. The body includes a third duct with third and fourth nozzles for injecting air. The third nozzles surround an axis of the first nozzles and the fourth nozzles surround an axis of the second nozzles.Type: GrantFiled: June 22, 2011Date of Patent: February 3, 2015Assignee: Alstom Technology LtdInventors: Adnan Eroglu, Johannes Buss, Andrea Ciani
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Patent number: 8943825Abstract: A Helmholtz damper for a combustor of a gas turbine includes first and second damping volumes. The combustor has a combustion chamber disposed in a housing and closed off by a front plate at which a plurality of burners are exchangeably fastened. The burners are supplied with fuel via fuel lances which extend from outside the housing through a bushing of the housing to the associated burner. The first damping volume has a first end and a second end, the first end of the first damping volume being configured to attach a connecting passage extending to a front panel such that the Helmholtz damper is connectable with the front plate of the combustion chamber in place of one of the burners. The second damping volume has a first end and a second end and is arranged in series with the first damping volume along an axis of the Helmholtz damper with the first end of the second damping volume being detachably connected to the second end of the first damping volume so as to form a combined larger damping volume.Type: GrantFiled: January 28, 2011Date of Patent: February 3, 2015Assignee: Alstom Technology Ltd.Inventors: Fulvio Magni, Martin Andrea Von Planta, Frank Grimm, Dariusz Nowak, Mischa Schaerer
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Patent number: 8949048Abstract: The invention relates to detection apparatus for detecting a partial discharge from live electrical apparatus, the detection apparatus comprising detection means (Pc) mounted on the live electrical apparatus (T) for the purpose of detecting the occurrence of at least one partial discharge, wherein said detection apparatus further comprises additional means (D1, D2, S) suitable for determining whether a detected partial discharge is internal or external relative to the live apparatus.Type: GrantFiled: May 10, 2010Date of Patent: February 3, 2015Assignee: Alstom Technology Ltd.Inventors: Gilbert Luna, Sébastien Louise
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Publication number: 20150027310Abstract: A carbon capture system, such as a chilled ammonia process, is provided that includes with a cooling system, a carbon dioxide absorption system and an ammonia absorption system. The ammonia absorption system includes an absorber column to receive carbon dioxide lean gas stream having ammonia and to receive an absorbent, wherein the absorbent absorbs ammonia from the carbon dioxide lean gas stream to provide an ammonia reduced gas stream and an ammonia rich absorbent. Further, an ammonia stripper is provided to receive the ammonia rich absorbent and to receive a portion of the gas stream, wherein the gas stream flows through the ammonia stripper to heat the ammonia rich absorbent to release the ammonia therefrom and provide an ammonia rich gas stream and an ammonia reduced absorbent.Type: ApplicationFiled: July 25, 2013Publication date: January 29, 2015Applicant: ALSTOM Technology LtdInventors: Ola Augustsson, Raul Tahoces
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Publication number: 20150027775Abstract: The invention relates to the domains of power electronics and electric power transmission systems and concerns a new structure for wall bushings for High and Ultra High Voltage AC or DC applications. The wall bushing is remarkable as it can be assembled as a kit of two replaceable modules: a plug type module (20) and a socket type module (30) whose central conductors (15a,15b) are connected by a joint that allows their thermal expansion.Type: ApplicationFiled: January 9, 2012Publication date: January 29, 2015Applicant: ALSTOM TECHNOLOGY LTD.Inventors: Giovanni Testin, Luca Crocco, Milorad Sehovac
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Publication number: 20150028701Abstract: A stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands. The stator bar also includes an electric insulation applied around the conductive element and including a plurality of corners corresponding to corners of the conductive element. The electric insulation includes an inner insulation zone facing the conductive element, and an outer insulation zone surrounding the inner insulation zone. The radius of at least one of the corners is between 1.5-2.5 millimeters. Permittivity at the corners of the electric insulation decreases by 35-45% from the inner insulation zone facing the conductive element towards the outer insulation zone. The insulation includes at least one mica layer, where one of the at least one mica layer includes titanium dioxide (TiO2).Type: ApplicationFiled: October 14, 2014Publication date: January 29, 2015Applicant: ALSTOM Technology LtdInventors: Thomas BAUMANN, Massimiliano Vezzoli, Dieter Stoll, Johann Haldemann
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Publication number: 20150028163Abstract: A sensor for monitoring the current flowing in a wire of a circuit is provided. The sensor includes a variable inductance contactless current detector to sense the current flowing in the wire, serially connected to an internal power source and a resistor to form a voltage divider circuit. The sensor also includes a voltage detector to monitor the voltage level across the resistor and generate an output signal. A system is also provided.Type: ApplicationFiled: July 26, 2013Publication date: January 29, 2015Applicant: ALSTOM TRANSPORT SAInventors: Robert I. Hochman, Bruce Vernon Johnson
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Patent number: 8938971Abstract: A combined flow straightener and mixer is disclosed as well as a burner for a combustion chamber of a gas turbine having such a mixing device. At least two streamlined bodies are arranged in a structure comprising the side walls of the mixer. The leading edge area of each streamlined body has a profile, which is oriented parallel to a main flow direction prevailing at the leading edge position, and with reference to a central plane of the streamlined bodies, the trailing edges are provided with at least two lobes in opposite transverse directions. The periodic deflections forming the lobes from two adjacent streamlined bodies are out of phase.Type: GrantFiled: May 11, 2012Date of Patent: January 27, 2015Assignee: Alstom Technology LtdInventors: Madhavan Narasimhan Poyyapakkam, Khawar Syed, Satish Kumar Gajula, John Philip Wood
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Patent number: 8939259Abstract: A wind turbine lubrication system comprising a pump for pumping lubricant through a lubrication circuit, said pump being driven by a power-take-off from the drive train of the wind turbine, characterized in that said pump for pumping lubricant drives at least a first hydraulic motor providing mechanical power to a first wind turbine auxiliary component.Type: GrantFiled: November 5, 2009Date of Patent: January 27, 2015Assignee: Alstom Wind, S.L.U.Inventors: José Luis Román Mallada, Daniel Castell Martinez
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Patent number: 8938968Abstract: An exemplary burner of a gas turbine includes a tubular body with an inlet for an entrance of an air flow, downstream of inlet vortex generators, and a lance projecting into the tubular body and having a terminal portion extending along a longitudinal axis of the burner which is provided with nozzle groups for injecting fuel into the tubular body. The nozzle groups can lay in an injection plane perpendicular to the axis of the terminal portion of the lance. Downstream of the lance, the burner has an outlet. A ratio x/L between an axial distance x between the side trailing edge of the vortex generator and the injection plane, and the length L of the tubular body can be less than approximately 0.1052.Type: GrantFiled: December 18, 2009Date of Patent: January 27, 2015Assignee: Alstom Technology Ltd.Inventors: Johannes Buss, Andrea Ciani, Michael Düsing, Adnan Eroglu
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Publication number: 20150025716Abstract: This system (210) comprises an antenna (20) comprising a first loop (22) and a second loop (24) having different radiation patterns, the first and second loops being designed to generate first and second currents (I1, I2) when the antenna passes over a beacon situated on the line and an electronic processing subsystem designed to generate a location signal from said first and second currents. It is characterized by said subsystem being a first subsystem (230) for generating a first location signal (SL1), the system comprises a second subsystem (240) for generating a second location signal (SL2) from said first and second currents, and by said subsystem comprising an arbitration means (250) designed to generate a safety location signal (SLS) according to said first and second location signals.Type: ApplicationFiled: March 5, 2013Publication date: January 22, 2015Applicant: ALSTOM TRANSPORT TECHNOLOGIESInventor: Jacques Orion
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Publication number: 20150023074Abstract: An AC/DC electrical converter device having a source mode and a recovery mode, and for connection, on the AC side, to an AC voltage source and, on the DC side, to a DC power distribution network. It includes an AC/DC converter, a switching cell with two switches (K1, K2) that are bidirectional for current, the switches sharing a common point (A) and each having a respective end terminal (B1, B2), a filter stage, and a control unit for the cell; the converter is for connection on the AC side to the voltage source and is connected on the DC side to the cell; in use, the first switch (K1) is connected between the converter and the DC power distribution network via the filter stage, the second switch (K2) forming a combination in parallel with the filter stage and the DC power distribution network. The control means are able to manage a short-circuit current in source mode by operating on the first and second switches.Type: ApplicationFiled: February 14, 2013Publication date: January 22, 2015Applicant: ALSTOM Technology Ltd.Inventor: Guillermo Garcia-Soto
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Patent number: 8931589Abstract: A damper arrangement (10) has a first Helmholtz damper (11) connected in series to a second Helmholtz damper (12). The resonance frequency of the first Helmholtz damper (11) and the resonance frequency of the second Helmholtz damper (12) are shifted from one another in an amount producing a synergic damping effect.Type: GrantFiled: June 3, 2011Date of Patent: January 13, 2015Assignee: Alstom Technology Ltd.Inventors: Mirko Bothien, Bruno Schuermans, Nicolas Noiray, Andreas Huber, Adrian Glauser
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Patent number: 8934268Abstract: A power electronic converter for use in high voltage direct current power transmission and reactive power compensation which includes at least one converter limb including first and second DC terminals for connection in use to a DC network. The or each converter limb includes at least one first converter block and at least one second converter block connected between the first and second DC terminals. The or each first converter block includes a plurality of line-commutated thyristors and at least one first AC terminal for connection in use to an AC network. The or each second converter block includes at least one auxiliary converter including a plurality of self-commutated switching elements. The self-commutated switching elements are controllable in use to inject a voltage to modify a DC voltage presented to the DC side of the converter limb and/or modify an AC voltage and an AC current on the AC side of the power electronic converter.Type: GrantFiled: April 8, 2010Date of Patent: January 13, 2015Assignee: Alstom Technology LtdInventors: David Trainer, Andre Paulo Canelhas, Colin Charnock Davidson, Carl David Barker
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Patent number: 8932007Abstract: An axial flow gas turbine (20) includes a rotor (13) and a stator, and a hot gas path through which hot gas passes. The rotor (13) includes a rotor shaft (15) with axial slots for receiving a plurality of blades (B1-B3) arranged in a series of blade rows, with rotor heat shields (R1, R2) interposed between adjacent blade rows. The rotor shaft (15) is configured to axially conduct a main flow of cooling air along the rotor heat shields (R1, R2) and the lower parts of the blades (B1-B3), and the rotor shaft (15) supplies the interior of the blades (B1-B3) with cooling air (18). Stable and predictable cooling air parameters at any blade row inlet are secured by providing air-tight cooling channels (21), which extend axially through the rotor shaft (15) separate from the main flow of cooling air (17), and supply the blades (B1-B3) with cooling air (18).Type: GrantFiled: November 29, 2011Date of Patent: January 13, 2015Assignee: Alstom Technology Ltd.Inventors: Alexander Anatolievich Khanin, Valery Kostege, Anton Sumin
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Publication number: 20150008733Abstract: A railroad network (10) having a track (12), a network energy supply (14) and a plurality of trains (16) that are connectable to the network energy supply (14) via means (20) for connecting the train (16) to the network energy supply (14) and each have an internal energy storage system (24) for receiving and storing energy originating from said train (16) or from trains (16) of the railroad network (10) and for supplying energy to said train (16) or to trains (16) of the railroad network (10). Each train (16) is able to switch from an operational state in which it is able to move along the system of rails (12) and an idle state in which it is unable to move along the system of rails (12) and vice versa. At least one of the trains (16) of the railroad network (10) is in the idle and energized state at the same time, its internal energy storage system (24) being connected to the network energy supply (14).Type: ApplicationFiled: March 5, 2013Publication date: January 8, 2015Applicant: ALSTOM Transport TechnologiesInventors: Robert Periot, Jose Saiz, Dominique Jamet