A hydrogen fuel delivery system (300) comprises a fuel line (312) having an inlet (315) and an outlet (316), a liquid fuel pump (307) configured to provide a flow of liquid hydrogen fuel from a hydrogen fuel storage tank (308) to the fuel line inlet (315), a heat exchanger (306) having first and second fluid paths (313, 314), the fuel line (312) passing through the first fluid path (313), a pre-heater line (317) having an inlet (318) connected to the fuel line (312) between the fuel line inlet (315) and the heat exchanger (306), the pre-heater line (317) comprising a first control valve (301) and a burner (305) between the pre-heater line inlet (318) and the heat exchanger (306), the pre-heater line (317) passing through the second fluid path (314) of the heat exchanger (306) towards a pre-heater line outlet (319), a second control valve (302) in the fuel line (312) between the heat exchanger (306) and the fuel line outlet (316), a first temperature sensor (321) configured to measure a first fuel temperature (T1) in the fuel line (312) between the heat exchanger (306) and the second control valve (302), and a control system (400) configured provide a first control signal (CV1) to control operation of the first control valve (301) dependent on an input target temperature (T1Target) compared to the first fuel temperature (T1) and on a measure of fuel flow (mbfuel) through the pre-heater line (317).
F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
B64D 37/30 - Circuits de carburant pour carburants particuliers
A system (1) comprises a fuel cell stack (100), a coolant fluid tank (305), a heat-exchanger (320), an exhaust (325), a controller (395) and a valve (315) having an inlet (316) and first and second outlets (317, 318). Coolant fluid is conveyed from the tank to the stack on a feed line (340) and from the stack to the inlet on a discharge line (345). The controller controls the valve such that coolant fluid exits either at the first outlet, such that coolant fluid passes back to the tank on a recycle line (330) via the heat-exchanger, or at the second outlet, such that coolant fluid passes to the exhaust and leaves the system. The controller is arranged to select the first or second outlet according to the heat duty required across the stack and that achievable across the heat-exchanger. The gravimetric power density of the system is higher than that of an equivalent system which implements only closed-loop cooling.
H01M 8/04029 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par des liquides
3.
CONVERTER BUILDING BLOCK, MODULAR ISOLATED ACTIVE BRIDGE, IN PARTICULAR MULTI-ACTIVE-BRIDGE, DC/DC CONVERTER CIRCUIT AND DC/DC CONVERTER ARRANGEMENT
The invention regards a converter building block (100), wherein the converter building block is adapted for use in a modular isolated active bridge DC/DC converter circuit, in particular a multi-active-bridge DC/DC converter circuit. According to the invention the converter building block (100) comprises bidirectional DC/AC converter circuit comprising a number of switching elements (102.1-102.4). Moreover, the converter building block comprises a controller unit (106), wherein the controller unit (106) is configured to generate an internal switching-element control signal (110) for controlling an operation of the switching elements (102.1-102.4). Additionally, the converter building block comprises a switching-element control interface (108) configured to send an outgoing switching-element control signal (112.1) for controlling switching elements of one or more other converter building blocks and to receive an incoming switching-element control signal (112.2) adapted for controlling the switching elements (102.1- 102.4) of the converter circuit (102). Furthermore, the controller unit (106) is selectively operable in a master operation mode (M) and in a slave operation mode (S).
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
4.
ACTIVE-BRIDGE CONVERTER CIRCUIT, ACTIVE-BRIDGE CONVERTER ARRANGEMENT AND METHOD FOR OPERATING THE ACTIVE-BRIDGE CONVERTER CIRCUIT
The invention regards a dual-active-bridge (DAB) converter circuit (100) comprising a primary bridge circuit (116) and a secondary bridge circuit (126) that are inductively coupled to each other through a frequency transformer (102), wherein - a primary capacitor (114) is connected in parallel to the primary bridge circuit (116), - the primary bridge circuit (116) and the primary capacitor (114) are electrically connectable to a DC bus (1204), and - the secondary bridge circuit (126) is electrically connectable to a DC power supply (1202). According to the invention the dual-active-bridge converter circuit (100) further is configured to execute a pre-charging procedure for pre-charging the primary capacitor (114), wherein the pre-charging procedure comprises at least the step of transferring electrical power received from the DC power supply (1202) from the secondary bridge circuit (126) to the primary bridge circuit (116); and/or - the active-bridge converter circuit (500) is configured to execute a de-energizing procedure for de-energizing the primary capacitor (114), wherein the de-energizing procedure comprises at least the step of dissipating electrical energy stored in the primary capacitor (114) using at least the primary bridge circuit (116).
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A storage tank for gaseous hydrogen comprises a continuous tank wall (104) defining a serial array of hollow elongate tank portions (110, 112, 114) of substantially constant cross-section and hollow connecting portions (116, 118) defining an internal storage volume (106), wherein adjacent ends of any pair of adjacent hollow elongate tank portions are connected by a hollow connecting portion having a cross-sectional dimension smaller than those of the adjacent hollow elongate tanks portions. The tank may be comprised in an aircraft wing (300) such that it extends spanwise through one or more internal spars (334, 336) of the wing, thus providing a continuous gas storage volume at a given chordwise position notwithstanding the spars, and providing for storage of gaseous hydrogen at higher gravimetric efficiency than is achievable by a plurality of coupled discrete tanks disposed between the spars.
A fuel cell system (100) comprises a PEM fuel cell stack (120) and an expansion valve (111). The cathode output (123) of the PEM fuel cell stack is coupled to the expansion valve such that gaseous output from the cathode side of the PEM fuel cell stack is expanded to condense water vapour therein. The expansion valve is lighter, more reliable and more efficient than conventional arrangements for condensing water vapour in the cathode exhaust of a PEM fuel cell stack. The greater efficiency of water recovery from the cathode exhaust affords the possibility of reducing the liquid cooling capacity of the fuel cell system by injection of recovered water directly into the PEM fuel cell stack to achieve both evaporative cooling and membrane humidification, thus providing a further weight reduction compared to systems of the prior art. The fuel cell system is particularly suitable for mobile and transport applications, especially aerospace applications.
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyte; Humidification ou déshumidification
ccHH). An air expansion machine (203) recovers power by expansion of heated air from the heat recovery system. A separation system (207, 208) separates carbon dioxide from ambient air prior to liquefaction during operation of the liquid air energy storage system, and separates carbon dioxide from the cooled exhaust stream during operation of the combustion engine prior to emission of the cooled exhaust stream to atmosphere.
F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleurs; Ensembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p.ex. ammoniac, gaz carbonique, éther
F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
A fuel cell system (100) comprises a fuel cell stack (102) and a cooling circuit (150) arranged to cool the stack by implementing a Rankine cycle which converts waste heat from the stack into useful work during operation of the system. The cooling (circuit (150) includes the stack, a heater (157) arranged to heat coolant fluid in the cooling circuit, a turbine (158) and a condenser (151) in that order and means arranged to drive coolant fluid around the cooling circuit. Addition of heat from the heater to the coolant fluid after the coolant fluid exits the stack allows more useful work to be extracted by the turbine, and with greater thermodynamic efficiency, than is otherwise possible. Heat energy, for example waste heat, may be provided to the heater from a source external to the system. Alternatively, the heater may combust waste or unreacted hydrogen output by the fuel cell stack.
H01M 8/04014 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par combustion des réactifs
H01M 8/04029 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par des liquides
H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
A fuel cell system (200) comprises a fuel pre-heater (227) and fuel cell stack (202) having cooling apparatus comprising a cooling circuit (250) including a coolant/air heat exchanger (253), the fuel pre-heater being arranged to heat a flow of liquid hydrogen provided to an input thereof to provide a flow of gaseous hydrogen. The system further comprises conveying means arranged to convey the gaseous hydrogen to a fuel input (212) of the fuel cell stack, the conveying means and the cooling circuit being arranged such that coolant fluid within the coolant/air heat-exchanger is in thermal contact with gaseous hydrogen within the conveying means during operation of the fuel cell system. The pre-heater ensures that the temperature of gaseous hydrogen ultimately entering the fuel cell stack is sufficient to allow it to react efficiently within the stack, irrespective of the operating condition of the stack.
H01M 8/04014 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par combustion des réactifs
H01M 8/04029 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par des liquides
H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
H01M 8/04007 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
10.
COMPUTER-IMPLEMENTED METHODS, APPARATUS, COMPUTER PROGRAMS AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUMS
A computer-implemented method comprising: receiving a first data set comprising a plurality of values for a plurality of features; removing one or more features and associated values from the first data set to generate a second data set; determining feature importance of at least a subset of the features of the second data set using multiple-evaluation criteria; and performing an action using at least one feature of the second data set and the determined feature importance.
A computer-implemented method comprising: receiving a first data set comprising a plurality of values for a plurality of features; identifying at least a first feature of the first data set that is non-redundant and at least a second feature of the first data set that is redundant; identifying one or more clusters of features in the plurality of features of the first data set, a first cluster of the one or more clusters comprising at least the first feature and the second feature; and controlling a display to display the first feature and one or more redundant features from the first cluster, the displayed one or more redundant features from the first cluster comprising the second feature.
A device for generating conversational replies, comprising a processor with a memory; a speech input module, a user input module; a natural language processing module including one or more encoder-decode modules; the device being configured to: record portions of a conversation through the speech input module, use a speech recognition module to identify words in the conversation, and when one or more words have been recognised: generate one or more responses based on the one or more words using the natural language processing module; selecting a group of the context sensitive responses, prompt the user via the user input module to select a response from the group, output the selected response.
A method of training a neural network to generate conversational replies, the method comprising: providing a first dataset of stored phrases linked to form a plurality of conversational sequences; training the neural network to generate responses to input phrases using the first dataset; and using the trained neural network to generate a list of conversational replies in response to conversational inputs.
Method of manufacturing a dome comprising: providing a plurality of components; joining a first and a second component together, joining the first and second components together comprising: positioning the first component and the second component in an inital position in which the first surfaces of components are angled from each other by a first angle; melting a volume of material extending between the first and the second component, the volume of material increasing in thickness from the second surfaces to the first surfaces; and the volume of material cooling and solidifying so as to join the first component and the second component together, the cooling of the volume of material reducing the angle between the first surfaces to a second angle less than the first angle such that the first surfaces face towards a centre of the dome and the first and second components form part of the dome.
B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
B23K 33/00 - Extrémités de pièces spécialement profilées pour effectuer des assemblages brasés ou soudés; Remplissage des joints continus ainsi formés
B23K 26/32 - Assemblage tenant compte des propriétés du matériau concerné
There is described a method of manufacturing a dome (2), the method comprising: providing a plurality of beams (6, 106, 206, 306), each of the plurality of beams (6, 106, 206, 306) comprising one or more slots (16, 22); and engaging at least one of the slots (16, 22) of each of the plurality of beams (6, 106, 206, 306) with a slot (16, 22) of the one or more slots (16, 22) of another of the plurality of beams (6, 106, 206, 306) so as to form at least part of the dome (2). There is also described a dome (2) manufactured in accordance with the method.
E04B 7/10 - Structures en coque, p.ex. de forme hyperbolique-parabolique; Conformations en forme de grille jouant le rôle de structures en coque; Structures pliées
E04C 3/06 - Poutrelles; Solives, fermes ou structures analogues à des fermes, p.ex. préfabriquées; Linteaux; Traverses métalliques à âme substantiellement pleine, c. à d. non découpée
E04H 5/02 - Bâtiments ou groupes de bâtiments à des fins industrielles, p.ex. pour centrales énergétiques ou usines
E04C 3/04 - Poutrelles; Solives, fermes ou structures analogues à des fermes, p.ex. préfabriquées; Linteaux; Traverses métalliques
G21D 1/00 - ENSEMBLES DE PRODUCTION D'ÉNERGIE NUCLÉAIRE - Détails des installations à énergie nucléaire
16.
COMPUTER-IMPLEMENTED METHODS, APPARATUS, COMPUTER PROGRAMS, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUMS FOR PERFORMING OPTICAL CHARACTER RECOGNITION ON AN IMAGE IN A DATA FILE
A computer-implemented method of performing optical character recognition on an image in a data file. A computer-implemented method of performing optical character recognition on an image in a data file, the method comprising: processing the image in the data file using a first machine learning algorithm to generate machine-encoded text; processing the image in the data file using a second machine learning algorithm to generate machine-encoded text, the second machine learning algorithm being different to the first machine learning algorithm; determining a similarity of the machine-encoded text generated by the first machine learning algorithm and the machine-encoded text generated by the second machine learning algorithm; controlling a request for user input to identify the correct machine-encoded text when the machine-encoded text generated by the first machine learning algorithm and the machine-encoded text generated by the second machine learning algorithm have at least one difference; determining which of the machine-encoded text generated by the first machine learning algorithm and the machine-encoded text generated by the second machine learning algorithm is correct using the received user input; and controlling output of the machine-encoded text determined to be correct.
G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
17.
COMPUTER-IMPLEMENTED METHODS, APPARATUS, COMPUTER PROGRAMS, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUMS FOR DETERMINING A STRUCTURE OF A FIRST IMAGE IN A FIRST DATA FILE
A computer-implemented method of determining a structure of a first image in a first data file, the method comprising: rotating the first image to generate a second data file comprising a second image; identifying a table image in the second image of the second data file and storing the identified table image in a third data file, the identified table image comprising an image of text and at least one line; determining whether the table image in the third data file has a missing line; inserting a line in the table image of the third data file where a line is determined to be missing to generate a fourth data file; and determining a cell structure of the table image in the fourth data file using the lines of the table image, the cell structure comprising a plurality of cells.
G06V 30/12 - Détection ou correction d’erreurs, p.ex. en effectuant une deuxième exploration du motif
G06V 30/412 - Analyse de mise en page de documents structurés avec des lignes imprimées ou des zones de saisie, p.ex. de formulaires ou de tableaux d’entreprise
G06V 30/146 - Alignement ou centrage du capteur d’image ou du champ d’image
There is disclosed a vessel connection (220) for a metallic pressure vessel comprising: a wall portion (221) configured to form a portion of a vessel wall; a pipe extension (222) integrally formed with the wall portion; and a channel (223) through the wall and the pipe extension. There is also disclosed a method of designing a canister for forming a vessel connection.
F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
A system (201) for capture of atmospheric carbon dioxide is shown. The system comprises a carbon dioxide capture device (202) having a capture medium operable to capture atmospheric carbon dioxide under a first set of thermodynamic conditions, and to release carbon dioxide under a second set of thermodynamic conditions different to the first set of thermodynamic conditions. The first set of thermodynamic conditions comprise a first temperature range and the second set of thermodynamic conditions comprise a second temperature range. A heat engine (203) is configured receive a working fluid at an inlet temperature and arranged to discharge at least a portion of the working fluid at a discharge temperature in the second temperature range or higher, and a heat transfer arrangement (205) is configured to convey heat from discharged working fluid to the capture medium to release carbon dioxide therefrom.
B01D 53/04 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
A nuclear reactor is provided. The reactor including: plural fuel rods containing fissile material; plural control rods, each made of a first neutron-absorbing material, the control rods being inserted between the fuel rods to reduce the rate of a fission reaction of the fissile material and put the reactor in a shutdown state, but being operable to move in and out of the reactor to vary the rate of the fission reaction when the reactor is critical and generating useful power; and plural refuelling and/or storage rods, each made of a second neutron- absorbing material different to the first material, the refuelling and/or storage rods being inserted between the fuel rods to further reduce the rate of the fission reaction and maintain the shutdown state.
The present disclosure provides a refuelling device for lifting a fuel rod assembly from a reactor core of a nuclear power generation system in a deployment location and transporting it to a storage location. The refuelling device comprises a device body having an open base and defining a chamber for housing a coolant. A sealing plate is movable between an open position in which the chamber is open and a closed position in which the chamber is sealed. The device further comprises a shielding element formed of radioactive shielding material and moveably mounted within the chamber. It has a storage cavity having an open lower end, the shielding element being movable between a retracted position in which it is fully contained within the chamber and an extended position in which it extends from the chamber through the open base of the device body. The device further comprises a rod lifting system having a rod connector for releasable connection to the fuel rod assembly and configured to raise the fuel rod assembly to within the storage cavity when the device is in the deployment location, the sealing plate is in the open position and the shielding element is in its extended position.
G21C 19/19 - Parties de réacteurs spécifiquement adaptées pour faciliter la manipulation, p.ex. pour faciliter le chargement ou le déchargement des éléments combustibles
G21C 19/10 - Dispositifs de relèvement ou d'enlèvement adaptés pour coopérer avec les éléments combustibles ou avec l'élément de commande
G21C 19/18 - Appareils pour porter les éléments combustibles à l'aire de charge du réacteur, p.ex. depuis un emplacement de stockage
G21C 19/20 - Dispositions pour introduire des objets à l'intérieur de l'enceinte sous pression; Dispositions pour manipuler des objets à l'intérieur de l'enceinte sous pression; Dispositions pour extraire des objets de l'enceinte sous pression
G21C 19/32 - Appareils pour enlever des objets ou matériaux radioactifs de l'aire de décharge du réacteur, p.ex. pour les porter à un emplacement de stockage; Appareils pour manipuler des objets ou matériaux radioactifs à l'intérieur d'un emplacement de stockage ou les extraire de celui-ci
A nuclear power plant has a nuclear reactor including a reactor pressure vessel which houses plural fuel rods containing fissile material. The nuclear power plant further has means for submerging the reactor pressure vessel in water and thereby water-cooling the reactor pressure vessel in the event of an emergency requiring cooling of the nuclear reactor. The nuclear power plant further has a primary core catcher outwardly of the reactor pressure vessel, the primary core catcher being formed of a material suitable for retaining molten corium in the event corium escapes the reactor pressure vessel. The nuclear power plant further has secondary core catcher outwardly of the primary core catcher, the secondary core catcher lining a tank which is water-filled in normal use of the plant to submerge and thereby water-cool the primary core catcher. The secondary core catcher is also is formed of a material suitable for retaining molten corium in the event corium escapes the primary core catcher.
G21C 13/10 - Moyens pour prévenir la contamination dans le cas d'une fuite
G21C 15/12 - Aménagement ou disposition de passages dans lesquels la chaleur est transférée au réfrigérant, p.ex. pour la circulation du réfrigérant à travers les supports des éléments combustibles provenant de l'enceinte d'enveloppe
G21C 15/18 - Dispositions pour le refroidissement d'urgence; Mise hors circuit de la chaleur
23.
ABRASIVE MATERIAL, A METHOD FOR MANUFACTURING AN ABRASIVE MATERIAL AND A SUBSTRATE COATED WITH AN ABRASIVE MATERIAL
The invention relates to an abrasive material (10) comprising a nickel aluminide intermetallic phase, in particular a beta nickel aluminide (β-NiAl) intermetallic phase with a Laves phase, as a matrix (1) for abrasive particles (2). It also relates to a method manufacturing an abrasive material (10) and a blade in a turbomachinery with an abrasive material (10).
F01D 5/28 - Emploi de matériaux spécifiés; Mesures contre l'érosion ou la corrosion
F01D 11/12 - Prévention ou réduction des pertes internes du fluide énergétique, p.ex. entre étages pour obturations de l'espace entre extrémités d'aubes du rotor et stator utilisant un élément de friction allongé, p.ex. un élément d'usure, déformable ou contraint de façon élastique
A reactor control system for a nuclear reactor, the reactor control system comprising: one or more hollow tubes comprising neutron absorbing material, each having a first end and a second end; a pump connected to the first end of each hollow tube and operable to control the amount of a first fluid within the hollow tube, the first fluid comprising a neutron moderator, wherein: the pump is controlled based on a level of reactivity in the nuclear reactor, and the second end of the hollow tubes is in fluid communication with a second fluid, the second fluid having a neutron moderating capacity lower than 10% of that of the first fluid.
G21C 7/26 - Commande de la réaction nucléaire par déplacement du modérateur ou de parties de celui-ci
G21C 3/326 - Faisceaux d'éléments combustibles en forme d'aiguilles, de barres ou de tubes parallèles comprenant, en plus des éléments combustibles, d'autres éléments en forme d'aiguille, de barre ou de tube, p.ex. barres de commande, barres de support de grilles, barres fertiles, barres à poison ou barres factices
G21C 9/033 - Moyens pour effectuer une réduction très rapide du facteur de réactivité dans des conditions défectueuses, p.ex. fusible pour réacteur par un fluide absorbant
There is disclosed a fixing apparatus (10) for fixing a secondary component (14) to a fan blade, the fixing apparatus comprising: a first clamp part (16) comprising a first inner surface (20) and a second clamp part (18) comprising a second inner surface (22), the first inner surface and the second inner surface having a profile corresponding to a profile of a portion of the fan blade (102). The first clamp part and/or the second clamp part comprises a recess (24) in the respective first inner surface and/or second inner surface for receiving the secondary component, and a corresponding heater (28, 30) for applying heat to the secondary component located in the recess in use. The first clamp part and the second clamp part are configured to cooperate with one another to clamp the portion of a blade between them in a clamping operation and to hold the secondary component against the blade when the secondary component is received within the recess.
The invention relates to an oil system (42) of a gas turbine engine (10), comprising a first oil circuit (43) and at least one second oil circuit (45). By means of the oil circuits (43, 45), oil can be supplied to at least one hydraulic load (62) of a transmission (30) of the gas turbine engine (10). Downstream of the hydraulic load (62), in the region of a return (50) of the transmission (30), oil can be introduced into the oil circuits (43, 45) from the transmission (30). Upstream of the load (62), in the region of inlets (48, 49), oil can be introduced into the transmission (30) from the oil circuits (43, 45). At least the second oil circuit (45) is provided with an oil accumulator (70) between the return (50) of the transmission (30) and the inlet (49) of the second oil circuit (45). The oil accumulator (70) is designed such that, according to a feed pressure (p45) of the oil upstream of the inlet (49) of the second oil circuit (45), oil can be stored in the oil accumulator (70) or oil stored in the oil accumulator (70) can be fed toward the inlet (49) of the second oil circuit (45).
F01D 25/20 - Systèmes de lubrification utilisant des pompes de lubrification
F02C 7/06 - Aménagement des paliers; Lubrification
F02C 7/32 - Aménagement, montage ou entraînement des auxiliaires
F02C 7/36 - Transmission de puissance entre les différents arbres de l'ensemble fonctionnel de turbine à gaz, ou entre ce dernier et l'utilisateur de puissance
There is disclosed a containment system for a nuclear plant, the containment system comprising a pressure vessel defining a containment space for containing nuclear plant structures, a working floor extending from within the containment space to outside the pressure vessel, an access opening in the pressure vessel for providing access from the working floor outside the pressure vessel to the working floor in the containment space, and an access door provided within the pressure vessel. The access door is configured to slidably move downwardly with respect to the pressure vessel from a closed position in which it closes the access opening to seal the pressure vessel, and an open position in which it reveals the access opening and is received in a door space in the working floor. The access door comprises a first integral floor plug which is configured to plug the door space in the working floor when the access door is in the open position, to provide a substantially continuous working floor surface from outside the pressure vessel to within the containment space.
A trans-critical thermodynamic system (100) includes an expansion device (102) and a separator (104). The expansion device (102) receives a supercritical fluid (128) containing solutes (134). The expansion device (102) is operable to expand the supercritical fluid (128) to produce a sub-critical gas (132) by reducing a temperature and/or a pressure of the supercritical fluid (128). The separator (104) removes the solutes (134) from the sub-critical gas (132).
F01K 7/32 - Ensembles fonctionnels de machines à vapeur caractérisés par l'emploi de types particuliers de machines motrices; Ensembles fonctionnels ou machines motrices caractérisés par un circuit de vapeur, un cycle de fonctionnement ou des phases particuliers; Dispositifs de commande spécialement adaptés à ces systèmes, cycles ou phases; Utilisation de la vapeur soutirée ou de la vapeur d'évacuation pour le réchauffage de l'eau d'alimentation les machines motrices utilisant la vapeur à la pression critique ou hypercritique
F01K 25/06 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleurs; Ensembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant un mélange de fluides différents
F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleurs; Ensembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p.ex. ammoniac, gaz carbonique, éther
F22B 3/08 - Autres méthodes de production de vapeur; Chaudières à vapeur non prévues dans les autres groupes de la présente sous-classe à des pressions critiques ou hypercritiques
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
The invention regards a gas turbine engine for an aircraft that comprises a nacelle (112), a fan (102), an engine core located downstream of the fan, the engine core comprising a turbine and a core shaft (111) coupling the turbine to the fan (102), an intake (101) located upstream of the fan (102), an intake centerbody (3) located upstream of the fan (102), and an accessory gearbox (4). It is provided that the accessory gearbox (4) is integrated into the intake centerbody (3).
F02C 7/32 - Aménagement, montage ou entraînement des auxiliaires
F02C 7/04 - Entrées d'air pour ensembles fonctionnels de turbines à gaz ou de propulsion par réaction
F02K 3/04 - Ensembles fonctionnels comportant une turbine à gaz entraînant un compresseur ou un ventilateur soufflant dans lesquels une partie du fluide énergétique passe en dehors de la turbine et de la chambre de combustion l'ensemble fonctionnel comprenant des soufflantes carénées, c. à d. des soufflantes à fort débit volumétrique sous basse pression pour augmenter la poussée, p.ex. du type à double flux
There is disclosed a lay-up apparatus for laying up fibre reinforcement material, the lay-up apparatus comprising a lay-up tool (14) defining a lay-up surface (22), a placement head (16) having a flexible membrane (30) which is conformable to the lay-up surface (22), and a membrane vacuum port (32) extending through the membrane (30) and configured to hold a ply (20) against the membrane (30) when suction is applied through the membrane vacuum port (32). The placement head (16) is configured to cooperate with the lay-up tool (14) so that when a ply (20) is held against the membrane (30), an airtight chamber (50) is formed between the membrane (30) and the lay-up tool (14). The lay-up tool (14) comprises a consolidation vacuum port (24) configured to permit evacuation of the airtight chamber (50) to cause the membrane (30) and ply (20) to move towards the lay-up surface (22)
There is disclosed a fibre placement head (14, 114) comprising a roller mount (19) comprising an axle (21) defining a roller axis (28), and a hollow roller (20) defining an internal chamber (30). The roller is mounted on the axle and configured to rotate about the roller axis. The fibre placement head also comprises a pressurised fluid system (50) configured to deliver and discharge pressurised fluid to and from the internal chamber of the roller, to vary a stiffness of the roller by varying a pressure of fluid in the chamber. There is also disclosed a fibre placement machine (40) having the fibre placement head, and a method of laying up fibre reinforcement material using the fibre placement head.
A containment which in use forms at least part of a PWR nuclear power plant in which a primary coolant circuit circulates pressurised water between a reactor pressure vessel containing fuel assemblies, one or more steam generators and a pressurizer. The containment includes: (i) one or more power plant components selected from the one or more steam generators and the pressurizer, (ii) a pressure-containing housing which contains the component(s) and which defines a release space whereby, in the event of a loss-of-coolant accident releasing the pressurised water from the component(s), the released water and steam formed therefrom is received by and contained within the housing, the housing having a floor beneath the component(s) and sidewalls extending upwards from the floor to a roof above the component(s), and (iii) a support structure for the component(s), wherein the support structure is attached to the sidewalls of the housing and provides bearing surfaces on which are located corresponding bearing surfaces of the component(s). The containment is configured such that the component(s) is elevated above the floor of the housing by the support structure, and a portion of the vertical load of the weight of the component(s) is transmitted into the sidewalls of the housing via the bearing surfaces of the component(s) and the support structure.
A pressure-containing silo for one or more components on a primary coolant circuit of a nuclear reactor is provided. The pressure-containing silo for one or more components on a primary coolant circuit of a nuclear reactor having nuclear fuel assemblies which are cooled by coolant circulating around the primary coolant circuit, the silo defining a release space which, in the event of a loss-of-coolant accident releasing the pressurised coolant water from the one or more components contained therein, receives and contains the released water and steam, at increasing pressure, formed therefrom; wherein the silo is formed from plural, substantially identical, stacked and joined modular units, each modular unit having: a concrete body, a metal liner which lines a surface of the concrete body, and which, when the units are stacked and joined, is sealed edge-to-edge with the metal liners of neighbouring units to form an inward-facing, pressure-containing skin surrounding the release space, and plural conduits which, when the units are stacked, align with the conduits of neighbouring units to receive elongate tensioning members for post-stressing the concrete of the bodies.
Embodiments of the invention are shown in the figures, where a method for manufacturing a gearbox, the method comprising: providing a predefined interval around an integer; providing a gearbox setup; determining a speed ratio of at least two components of the gearbox setup; comparing the speed ratio with the predefined interval around the integer; and manufacturing a gearbox in accordance with the gearbox setup in dependence on the comparison.
F16H 57/023 - Montage ou installation d'engrenages ou d'arbres dans les boîtes de vitesses, p.ex. procédés ou moyens d'assemblage
F16H 57/028 - Boîtes de vitesses; Montage de la transmission à l'intérieur caractérisés par des moyens de réduction des vibrations ou du bruit
F16H 57/01 - Surveillance de l'usure ou de la sollicitation des éléments de transmission, p.ex. pour déclencher les opérations de maintenance
F16F 15/00 - Suppression des vibrations dans les systèmes; Moyens ou dispositions pour éviter ou réduire les forces de déséquilibre, p.ex. dues au mouvement
F02C 9/00 - Commande des ensembles fonctionnels de turbines à gaz; Commande de l'alimentation en combustible dans les ensembles fonctionnels de propulsion par réaction alimentés en air ambiant
G01M 13/028 - Analyse acoustique ou des vibrations
35.
A METHOD AND APPARATUS FOR FINISHING A SURFACE OF A COMPONENT
There is disclosed a method and apparatus for finishing a surface of a component (30). The method comprises installing the component (30) in an apparatus configured to deliver a flow of abrasives (34) to the surface and to generate cavitation bubbles in a liquid contacting the surface using a cavitation generator (32, 32'); controlling the cavitation generator (32, 32') such that cavitation bubbles are generated to finish the surface by implosion of the cavitation bubbles; and controlling the flow of slurry to the surface so as to finish the surface by abrasion. The apparatus comprises a cavitation generator (32, 32') configured to generate cavitation bubbles in a liquid contacting the surface; an abrasive supply line (34) configured to deliver a flow of abrasives to the surface; and a controller (40) configured to control the cavitation generator (32, 32') to generate cavitation bubbles to finish the surface by implosion of the cavitation bubbles and configured to control the flow of abrasives so as to finish the surface by abrasion.
B24B 19/14 - Machines ou dispositifs conçus spécialement pour une opération particulière de meulage non couverte par d'autres groupes principaux pour meuler des aubes de turbine, des pales d'hélice ou similaires
B24B 31/116 - Machines ou dispositifs pour polir ou travailler par abrasion des surfaces "au tonneau", ou au moyen d'autres appareils, dans lesquels les pièces à travailler ou les produits abrasifs sont libres; Accessoires à cet effet impliquant l'emploi d'autres moyens pour travailler les pièces par frottement utilisant un composé abrasif déformable plastiquement, mobile par rapport à la pièce sous l'action de la pression
B24C 1/10 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminé; Utilisation d'équipements auxiliaires liés à ces méthodes pour augmenter la compacité des surfaces, p.ex. par grenaillage
B24C 5/00 - Dispositifs ou accessoires pour la production des jets abrasifs
36.
INSERTION APPARATUS AND METHOD OF PROVIDING THROUGH THICKNESS REINFORCEMENT IN A LAMINATED MATERIAL
There is disclosed a method of providing through-thickness reinforcement in a laminated material (20). A guide foot (104) is moved to a datum location relative the laminated material (20), at which the guide foot (104) abuts a reinforcement zone on a surface of the laminated material. An insertion operation is conducted by inserting a insertion element (112, 122, 212) through the guide foot (104) into the laminated material (20) along an insertion direction when the guide foot (104) is in the datum location. The insertion element comprises a needle (112) for forming a hole (23) in the laminated material (20); a reinforcement rod (122) to be received in the laminated material (20); or a tamping pin (212) for tamping a reinforcement rod received in the laminated material. A corresponding insertion apparatus (100, 200) is disclosed.
B29C 70/24 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins trois directions formant une structure tridimensionnelle
There is disclosed a gripping apparatus for gripping a plurality of reinforcement rods for insertion into a laminated material. The gripping apparatus comprises a plurality of grippers arranged in an array. The grippers are moveable relative to one another within the array to define interstices for receiving rods from a supply. The gripping apparatus also comprises a retainer configured to retain the grippers in the array and an actuator configured to press the grippers together to grip rods in interstices between the grippers. There is also disclosed insertion equipment comprising the gripping apparatus.
B29C 70/24 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins trois directions formant une structure tridimensionnelle
38.
A METHOD AND APPARATUS FOR INSERTING A REINFORCING ROD INTO A LAMINATED MATERIAL
There is disclosed a method of inserting a reinforcing rod (18) into a hole (42) in a laminated material (40). The method comprises a feed operation in which a feed clamp (20) clamps a rod (18) whilst moving towards the laminated material (40) to feed an end section of the rod through a guide clamp (25) into a hole (42) in the laminated material. The method further comprises a re-supply operation in which the feed clamp (20) releases the rod (18) and moves relative the rod along a return direction away from the laminated material (40) whilst the guide clamp (25) clamps the rod. A corresponding insertion head for inserting a reinforcing rod, and insertion equipment comprising the insertion head and a controller is also disclosed.
B29C 70/24 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins trois directions formant une structure tridimensionnelle
There is disclosed a method of manufacturing a composite blade (100), and the composite blade. The method comprises a lay-up operation comprising laying up fibre reinforcement material (138) on an untwisted lay-up surface (134) to make a blade pre-form (150) and a forming operation comprising forming the blade pre-form to introduce twist in the blade pre-form.
B29D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
B29C 70/34 - Façonnage par empilage, c.à d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyau; Façonnage par pistolage, c.à d. pulvérisation de fibres sur un moule, un gabarit ou un noyau et façonnage ou imprégnation par compression
A method of manufacturing a component (32) for a gas turbine engine (10) comprises: applying a thermoplastic polymer sheet (43) over a composite body (37) for the component (32); applying a shield (35) over part of the composite body (37), the shield (35) terminating at an end (39) which overlies the thermoplastic polymer sheet (43) and defines an interface (41) between shielded and unshielded regions of the component; and pressing the shield (35) into the thermoplastic polymer sheet (43) so that the thermoplastic polymer sheet (43) deforms around the end of the shield (35), such that the exterior profile of the component at the interface (41) between the shielded and unshielded regions is flush.
An oil system (42) of a gas turbine engine (10) comprises an oil circuit (43) and at least one further oil circuit (44), via which at least one journal bearing (41 ) can be supplied with oil from at least one oil tank (47). A volume of the oil circuit (43) and a volume of the further oil circuit (44) between the oil tank (47) and the journal bearing (41 ) are correlated with each other in such a way that the journal bearing (41) is supplied with oil during and after completion of a negative g flight manoeuvre via the oil circuits (43, 44).
F02C 7/236 - Systèmes d'alimentation en combustible comprenant au moins deux pompes
F01D 25/20 - Systèmes de lubrification utilisant des pompes de lubrification
F02C 7/36 - Transmission de puissance entre les différents arbres de l'ensemble fonctionnel de turbine à gaz, ou entre ce dernier et l'utilisateur de puissance
F02C 7/06 - Aménagement des paliers; Lubrification
F01M 11/06 - Dispositifs pour maintenir constant le niveau du lubrifiant ou pour l'affranchir du mouvement ou de la position de la "machine" ou du moteur
A method of manufacturing a fan track liner or a fan track liner preform for a fan containment arrangement for a gas turbine engine, the method comprising depositing, by additive manufacturing apparatus, fibre-reinforced polymer material onto a rotating mandrel to form a cellular impact structure and a supporting sub-laminate integrated with one another.
F01D 21/04 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p.ex. indiquant cette position
F01D 25/24 - Carcasses d'enveloppe; Eléments de la carcasse, p.ex. diaphragmes, fixations
F04D 29/52 - Carters d'enveloppe; Tubulures pour le fluide énergétique pour pompes axiales
A structural support casing for fan blade containment in a gas turbine engine comprises at least one region in which two or more sub-laminates of fibre-reinforced composite material are spaced apart from one another by ductile polymeric material.
F01D 21/04 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p.ex. indiquant cette position
C08L 61/06 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes avec des phénols
B32B 5/00 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches
A structural support casing (22) for supporting a fan track liner (26) on an inboard surface of the structural support casing in a gas turbine engine comprises at least one region (30) in which two or more sub-laminates (31, 32, 33) of fibre-reinforced composite material are spaced apart from one another by layers of cellular material (34,35).
F01D 21/04 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p.ex. indiquant cette position
F01D 25/24 - Carcasses d'enveloppe; Eléments de la carcasse, p.ex. diaphragmes, fixations
45.
AN AEROFOIL STRUCTURE AND A METHOD OF MANUFACTURING AN AEROFOIL STRUCTURE FOR A GAS TURBINE ENGINE
The present disclosure relates to a method of manufacturing an aerofoil structure for a gas turbine engine, wherein the aerofoil structure comprises a root (202) configured to be received in a rotor disc (240) of the gas turbine engine, wherein the method comprises: providing a pre-formed insert (210a); adding the insert into a mould (220) for forming the aerofoil structure; adding a composite constituent (230) into the mould; and heating the composite constituent (230) in the mould (220) to bond the insert (210a, 210b) to the composite constituent, the insert being provided at a flank of the aerofoil structure root that faces a shoulder of the rotor disc; wherein the melting temperature of the insert (210a) is higher than the melting temperature of the resin. An aerofoil structure (200) for a gas turbine engine (10) comprises a root (202) configured to be received in a rotor disc (240) of the gas turbine engine. The aerofoil structure is formed from a composite constituent (230) and an insert (210a) moulded together, the insert being provided at a flank of the aerofoil structure root that faces a shoulder of the rotor disc.
There is disclosed a method of manufacturing a composite component. A preform (140) for the component is laid - up on a lay - up tool (130) so that a first surface of the preform conforms to a lay - up profile (136) of the tool. The preform (140) is transferred to a forming tool (160) comprising opposing first and second forming surfaces (164, 168), each having a near net shape profile corresponding to a respective side of the component. The preform (140) is formed in the forming tool to a near net shape of the component. The preform (140) has a preform bulk in excess of the near net shape of the component prior to forming, and the lay - up profile is offset relative to the near net shape profile of the first forming surface (164) to accommodate a proportion of the preform bulk. Accordingly, both the first surface and an opposing second surface (42) of the preform displace during forming to conform to the respective near net shape profiles of the forming surfaces (164, 168).
B29C 70/76 - Moulage sur les bords ou les extrémités de la partie préformée
B29C 70/42 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.à d. d'objets distincts
B29D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
F01D 5/30 - Fixation des aubes au rotor; Pieds de pales
There is disclosed a composite fan blade root 100 comprising an outer region 110 comprising composite material and defining an outer inspection surface 120 of the component; an inner region 108 surrounded by the outer region 110; and an internal reflection boundary 102 embedded within the root 100 between the inner region and the outer region. The reflection boundary is configured to change a velocity of a signal emitted into the root from the inspection surface, whereby a signal emitted into the root from the inspection surface 120 may be reflected for detection.
There is provided a casing assembly for a gas turbine engine comprising: a casing and electrically conductive intumescent material extending around the casing. The intumescent material is being activatable in response to electrical current to expand. The casing assembly comprises an electrical activation line extending around the casing to activate the intumescent material. The activation line extends in a pattern such that an activation area which circumscribes the activation line has an axial extent of at least 50% of the casing and a circumferential extent of at least 50%, to thereby activate the intumescent material at multiple locations over a corresponding area of the casing.
A62C 2/24 - Mécanismes de commande ou d'actionnement
A62C 3/08 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les véhicules, p.ex. les véhicules routiers dans les avions
F02C 7/25 - Prévention ou protection contre l'incendie
There is disclosed a fan track liner assembly (53) for a containment arrangement (50) of a gas turbine engine, the assembly (53) comprising a cellular reactive impact structure (60), wherein cells of the reactive impact structure (60) contain a reactive material having shear-thickening or shear-stiffening properties; whereby the reactive impact structure (60) is compliant during assembly to accommodate geometrical non-compliance in the fan track liner assembly.
F01D 21/04 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p.ex. indiquant cette position
A three-phase multi-level AC-AC converter and method of operating the same. The converter including: a transformer having plural secondary windings, each of which provides a three-phase or single-phase source of AC power; three sets of single-phase AC-AC converter cells, each cell receiving AC power from a respective winding of the plurality of windings, the converter cells within a given set being connected in series, and the three sets of converter cells being configured to supply power to a load; and a three-phase cell, connected to the three sets of single-phase AC-AC converter cells; wherein the three-phase cell includes: an active front-end converter which is connected to a winding of the plurality of windings; a three-phase converter; and a DC-link which links the active front-end converter to the three-phase converter; wherein the three-phase converter is configured to receive and rectify regenerative three-phase AC power from the load; and wherein the multi-level AC-AC converter further includes a load-dump resistor connected in parallel with the DC- link.
Described is a collision avoidance method for a water-based vessel, comprising: obtaining real time data relating to the path of two or more vessels; identifying a collision risk between the two or more vessels; determining if the collision risk is above a predetermined threshold, wherein when the collision risk is above the predetermined threshold, determining one or more collision avoidance manoeuvres on the basis of historical navigational data which corresponds to the real-time data; providing the one or more collision avoidance manoeuvres to an operator of the one or more vessels.
There is disclosed a roller interchange device 200 comprising: a support 202 for mounting on a composite material lay-up head 100; a plurality of roller mounts 208 for mounting respective rollers 312, 314. Each roller mount 208 is selectively moveable to a respective engaged position relative the support 202. The engaged position of each roller mount 208 corresponds to a respective roller being held at a compaction location relative the head when the support is mounted on the head.
Cladding of the interior of a component part of a pressure vessel is shown. A lining which conforms to at least a portion of the interior geometry of the component is positioned (303) in the interior of the component. The lining is then pressed (304) into the component past its yield strength. The lining is then fused (305) to the component.
F17C 1/10 - Récipients sous pression, p.ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables avec des moyens pour assurer une protection contre la corrosion, p.ex. due à un acide à l'état gazeux
There is disclosed a tool (10, 60) for manufacturing a composite component, the tool (10, 60) comprising: a skin (12) composed of fibre reinforced plastic and defining a layup surface (14) for the composite component, the skin (12) having a plurality of passageways (20) extending from the layup surface (14) to an opposing surface of the skin (12); a backing (18) secured to the skin (12), the backing (18) and the skin (12) defining a cavity therebetween; a support core (16) disposed within the cavity (32) and comprising a gas-permeable material (22) in fluid communication with (10) the passageways (20); and a conduit (30) extending through the backing (18) such that the conduit (30) is in fluid communication with the gas-permeable material (22).
B29C 70/44 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.à d. d'objets distincts utilisant une pression isostatique, p.ex. moulage par différence de pression, avec un sac à vide, dans un autoclave ou avec un caoutchouc expansible
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
B29C 33/38 - Moules ou noyaux; Leurs détails ou accessoires caractérisés par la matière ou le procédé de fabrication
There is disclosed a composite material lay-up head (20) for applying elongate fibre reinforcement material (14) to a tool (12), the head (20) comprising: at least one elongate tow guide channel (32) for guiding fibre reinforcement material (14) from a tow inlet (33) to a tow outlet (35) of the channel (32); and feed apparatus (36, 38) for feeding fibre reinforcement material through the at least one channel (32); wherein the or each channel (32) is provided with at least one nozzle (60) arranged so that in use a jet of gas can be delivered into the channel (32) so as to inhibit contact between fibre reinforcement material (14) in the channel (32) and the channel (32).
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
A thermochromic paint 42 comprising: 1wt % to 90wt % binder; 2wt % to 40wt % filler comprising an inorganic oxide; and 0.1 wt % to 28wt % organic compound including a chromophore. The paint provides an irreversible indication of maximum temperature.
A combined refrigeration and power plant (10). The power plant (10) comprises an internal combustion engine (16) an air cycle machine refrigerator (45) driven by the internal combustion engine (16) and configured to refrigerate atmospheric air to provide working fluid to a combined refrigeration and power generation cycle, a refrigerated air storage unit (62) configured to store working fluid produced by the air cycle machine refrigerator; and first and second heat exchangers (15, 27). The first heat exchanger arrangement (15) is configured to exchange heat between a device to be cooled (14) and the working fluid, and the second heat exchanger arrangement (27) is configured to exchange heat between the working fluid downstream of the first heat exchanger (15) in the combined refrigeration and power generation cycle and waste heat from the internal combustion engine (16); and a generator turbine (42) configured to receive heated working fluid from the second heat exchanger arrangement (27), and configured to power an electrical generator (12).
F25B 27/02 - Machines, installations ou systèmes utilisant des sources d'énergie particulières utilisant la chaleur perdue, p.ex. chaleur dégagée par des moteurs à combustion interne
58.
AN APPARATUS FOR MANUFACTURING A COMPOSITE COMPONENT
There is disclosed an apparatus (10) for manufacturing a composite component, comprising: a first tool (12) having a first support surface (22) for engaging a pre-form (100) for the composite component; a second tool (16) having a second support surface (46) for engaging the pre-form (100); a carrier (14) for the second tool (16) having an aperture (26) for withdrawal of the composite component (100) from the apparatus (10), wherein the carrier (14) is configured to receive the second tool (16) in a closed configuration in which the second tool (16) closes the aperture (26), and wherein the second tool (16) is moveable relative the carrier (14) to reveal the aperture (26); and a flexible seal (34) between the first tool (12) and the carrier (14). The first tool (12) and the carrier (14) are configured for relative movement so that, with the second tool (16) in the closed configuration, the first and second support surfaces (22, 46) can be selectively engaged and disengaged around the pre-form. A corresponding method of curing a composite component is also disclosed.
B29C 33/00 - Moules ou noyaux; Leurs détails ou accessoires
B29C 33/22 - Ouverture, fermeture ou serrage par un mouvement rectiligne
B29C 70/46 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.à d. d'objets distincts utilisant des moules opposables, p.ex. pour déformer des préimprégnés [SMC] ou des "prepregs"
There is disclosed a method of manufacturing a composite component comprising a main body and an integral flange, the method comprising applying fibre-reinforcement material on a tool (32) having a main body portion (36) and a flange-forming portion (40, 42) to provide a pre-form (200) comprising a body region (210) and a longitudinally adjacent flange region (212, 214). The pre- form (200) extends generally longitudinally between two longitudinal ends (226); and a trailing ply (202, 204) of the pre-form extends generally longitudinally between the longitudinal end (226) closest to the flange region (212, 214) and an inner ply end (224) located in the flange region (212, 214) or partway into the body region (210). Relative movement between the flange-forming portion (40, 42) and the main body portion (36) causes sliding movement between the trailing ply (202, 204) and the flange-forming portion (40, 42) during a flange forming operation, thereby causing a tension force in at least the flange region (212, 214) of the pre-form of during forming of the flange.
B29C 70/44 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.à d. d'objets distincts utilisant une pression isostatique, p.ex. moulage par différence de pression, avec un sac à vide, dans un autoclave ou avec un caoutchouc expansible
B29C 70/46 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.à d. d'objets distincts utilisant des moules opposables, p.ex. pour déformer des préimprégnés [SMC] ou des "prepregs"
B29C 70/56 - Tensionnage des renforcements avant ou pendant le façonnage
60.
A METHOD OF DESIGNING A PLYBOOK FOR A COMPOSITE COMPONENT
There is disclosed a method of designing a plybook (204, 708) for a composite component (402), comprising: defining a component volume (12) corresponding to the composite component (402) to be manufactured; defining a plurality of successive plies (20) of composite material to fill the component volume (12); simulating at least some of the plurality of successive plies (20) of composite material based on an estimate of variable cured ply thickness, wherein the variable cured ply thickness is estimated by: simulating at least a portion of a respective ply (20) of composite material; and estimating a cured ply thickness for the portion of composite material at least partly based on local conditions of the portion. A plybook (204, 708) is defined based on the plurality of simulated plies (20).
There is disclosed a computer-implemented method of generating a movement profile for a layup procedure, the movement profile defining relative movement between an applicator head and a tool along a head path for laying up a course of composite material, the method comprising: determining a bond strength profile along the head path (428); and determining a movement profile based on the bond strength profile (430), wherein the movement profile includes a variable rate of relative movement.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
G05B 19/416 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par la commande de vitesse, d'accélération ou de décélération
COMPOSITE TECHNOLOGY AND APPLICATIONS LIMITED (Royaume‑Uni)
ROLLS-ROYCE PLC (Royaume‑Uni)
Inventeur(s)
Barnes, Ashley
Lee, James A
Hocking, Matthew
Goodman, Edward
Calvert, Peter
Abrégé
There is disclosed a method of manufacturing a composite component, the method comprising laying-up a plurality of successive plies of composite material to produce a pre-form (12) for the component in a lay-up procedure, wherein a portion of each ply of composite material is heated to at least a threshold temperature of 45°C during a period of the lay-up procedure.
A method of manufacturing a composite component A method of reinforcing a fibre reinforced resin matrix composite structure, the method comprising: providing a composite structure having one or more holes formed therein, and feeding a reinforcement rod (38) through a passageway (88) having one or more walls defining an inlet to the passageway. The inlet to the passageway is dimensioned to prevent a rod having a maximum cross sectional dimension greater than a predetermined dimension from passing through the passageway. In the event of the rod impacting the wall defining the inlet to the passageway, operation of the rig is stopped. In the event of the rod passing through the passageway without impacting the wall defining the inlet to the passageway, a portion of the rod is inserted into a hole in a composite structure. To be accompanied when published by Figure 3.
B29C 70/24 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins trois directions formant une structure tridimensionnelle
B65H 63/06 - Dispositifs d'alarme ou de sécurité utilisés pour le déroulage, le dévidage, le défilement, l'enroulage, le bobinage ou l'emmagasinage d'un matériau filiforme, p.ex. détecteurs automatiques de défectuosités ou mécanismes d'arrêt réagissant à la présence d'irrégularités dans le matériau pendant son défilement, p.ex. pour rompre le matériau aux irrégularités
64.
METHOD OF MANUFACTURING A COMPOSITE COMPONENT AND RIG FOR POSITIONING A REINFORCING ROD
A method of manufacturing a composite component including reinforcing a composite structure by providing a composite structure with a plurality of holes provided therein, and positioning a reinforcement rod in each of the holes. The reinforcement rods are dimensioned to protrude from the holes. The reinforcement rods are cropped to a desired length after the rods have been positioned in the holes.
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
B29C 70/06 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement
There is disclosed a turboshaft engine (10) having a principal rotational axis and comprising a power turbine (16), a tail bearing housing (18) and an exhaust collector (19) arranged in axial flow series along said axis. The tail bearing housing (18) has a radially central region (23) defining a flow chamber (35) for cooling air; and an annular duct (24) defined around the central region (23) and which forms at least part of an exhaust flow passage for the flow of exhaust gases from the power turbine (16) to the exhaust collector (19). The flow chamber (35) is provided in fluid communication with said exhaust collector (19) via at least one exhaust port (38) formed in the tail bearing housing (18) such that the flow of exhaust gases along said exhaust collector (19) during operation of the engine educes a flow of cooling air through the central flow chamber (35) by drawing air through the or each exhaust port (38) and into the exhaust collector (19). A related method of operating a turboshaft engine is also disclosed.
The present disclosure provides methods and systems to automatically detect, classify and/or mitigate sensor errors using partial qualitative and quantitative knowledge of the subsystems. In various examples, sensor fault detection is performed with a custom designed representation scheme covering causality, correlation, system of equality and inequalities, and an associated logic. The logic is described by a set of algorithmic steps to iteratively assign trustworthiness level of sensors. Sensor fault classification is performed by combining mathematical and statistical techniques that can be utilized to expose bias, drift, multiplicative calibration error, precision degradation and spike error. Sensor fault mitigation is also performed on identified bias, drift, multiplicative calibration error, precision degradation and spike error.
The present Invention provides a switched reluctance generator and devices and methods for the control of such a generator. It Is particularly concerned with generators and controls which can operate in an aerospace environment. The generator may have: a rotor having a plurality of rotor poles; a stator having a plurality of stator poles; and a controller, wherein: either said plurality of rotor poles or said plurality of stator poles each have windings to which current can he supplied to energise said poles and from which current can be drawn to a load; and the controller is arranged to: periodically excite each of the windings In turn to a pre-determined level of current; measure the current generated in each winding; cease the excitation when the current generated in each winding exceeds the excitation current; and direct the generated current in each winding to the load. The generator may thereby avoid the need to determine the position of the rotor poles relative to the stator poles to provide the commutation of the generator. The generator can thereby be made self-commutating without the use of complex sensors or microprocessors, which significantly improves Its reliability and certifiability.
H02P 9/40 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie par variation de réluctance du circuit magnétique de la génératrice
A method of modulating the cooling of a gas turbine component is disclosed. The method includes determining a target component temperature at which the gas turbine component can be maintained without the gas turbine component experiencing a failure over the course of an indicated life of the gas turbine component; scheduling a cooling air value to the target component temperature; and determining one or more of a demanded cooling air temperature and a demanded cooling air mass flow rate based on the scheduled cooling air value.
ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES, INC. (USA)
ROLLS-ROYCE PLC (Royaume‑Uni)
Inventeur(s)
Ress, Robert, A.
Swift, Andrew, A.
Abrégé
A gas turbine engine includes a compressor assembly that is rotationally coupled to a shaft. The engine includes a radial diffuser assembly coupled to a shroud of the compressor assembly and positioned to receive compressed air from a centrifugal impeller. The radial diffuser assembly includes a first arcuate wall and a second wall, and a near axial diffuser coupled to the radial diffuser assembly and positioned to receive the compressed air from the radial diffuser assembly. The gas turbine includes a gas seal coupled between the second wall and a wall of the near axial diffuser, the gas seal configured to prevent the compressed air from passing through the seal while allowing relative motion between the radial diffuser assembly and the near axial diffuser.
ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES,INC. (USA)
ROLLS-ROYCE PLC (Royaume‑Uni)
Inventeur(s)
Swift, Andrew, A.
Ress, Robert, A.
Abrégé
A gas turbine engine includes a compressor assembly that is rotationally coupled to a shaft, the compressor assembly having a centrifugal impeller and a shroud covering a bladed portion of the centrifugal impeller. The compressor assembly includes a diffuser that is attached to the shroud via a pair of flanges, the diffuser including a strut that is mounted through an aft-extending leg to a base of an intercase. A sealing assembly is attached to the diffuser and is attachable to a transition duct that is positioned to receive air from the diffuser. The sealing assembly is configured to prevent air from passing through the sealing assembly while allowing relative motion to occur between the transition duct and the diffuser.
F04D 29/44 - Moyens de guidage du fluide, p.ex. diffuseurs
F02C 3/08 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de produits de combustion comme fluide de travail ayant une turbine entraînant un compresseur le compresseur comprenant au moins un étage radial
F04D 29/62 - Montage; Assemblage; Démontage des pompes radiales ou hélicocentrifuges
71.
HIGH PRESSURE COMPRESSOR THERMAL MANAGEMENT AND METHOD OF ASSEMBLY AND COOLING
ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES, INC. (USA)
ROLLS-ROYCE PLC (Royaume‑Uni)
Inventeur(s)
Vetters, Daniel, K.
Mizzi, Simon
Agg, Michael, J.
Abrégé
A gas turbine engine includes an inner shaft extending axially along the gas turbine engine, a plurality of disks extending radially inwardly and toward the inner shaft, at least one hole in at least one of the plurality of disks, and an obstruction positioned between the inner shaft and an end of the disk having the at least one hole, such that a bore flow that flows along an axial length of the inner shaft is obstructed from flowing along the shaft by the obstruction, and forced to flow radially outward from the obstruction, through the at least one hole, and radially inward toward the inner shaft.
A pressure sensitive actuator includes: an actuator member (3), and a pressure sensing arrangement (4, 5, 6) which senses the ambient pressure and moves the actuator member in response thereto.
A method and apparatus for making an object comprising repeatedly selectively depositing a material by controlling one or more deposition areas using a deposition control plate comprising one or more apertures and selectively melting the selectively deposited material.
This invention relates to a laminated core for an electrical machine, comprising: a plurality of laminations configured to define a channel in a surface of the laminated core for the flow of a cooling fluid, wherein the channel has a base and at least one side wall, the at least one side wall having a stepped profile.
H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
This invention relates to a rotary electrical machine, comprising: a laminated core having a plurality of laminations, the laminations defining a plurality of parallel circumferential channels in a surface of the laminated core for a flow of cooling fluid, wherein the plurality of circumferential channels each extend between an inlet and an outlet so as to provide a plurality of parallel circumferential flow flows of coolant when in use.
H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
A probing cable for deployment inside a pipe formation has an outer casing and an elongate probe member which threads along a bore defined by the outer casing. The outer casing has a helical track which wraps around its outer surface.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
F16L 55/26 - Hérissons ou chariots, c.à d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
G02B 6/54 - Installation souterraine ou sous l'eau; Installation à travers des tubes, des conduits ou des canalisations en utilisant des moyens mécaniques, p.ex. des dispositifs pour tirer ou pousser
H02G 1/08 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour poser les câbles, p.ex. appareils de pose sur véhicule à travers des tubes ou conduits, p.ex. tringles ou fil de tirage pour pousser ou tirer
The invention provides a metallic foam material with better mechanical properties than known foamed materials, and a method of making such a material. Although known foamed metals are light in weight, and sandwich structures formed of such materials can be formed into structural components, the tendency for the structure to crush and fracture under compressive loading, with consequent crack propagation, limits their use in applications in which the integrity of the component is important. The invention addresses this problem by providing a fibre-reinforced foam that combines the tensile strength of a high strength fibre such as carbon fibres with the impact resistance (through crushing and deformation) of metallic foam. The metal foam imparts a greater strength to the carbon-fibre-reinforced plastics (CFRP) part of the structure than it would have by itself. Under tensile loads, the fibre reinforcement gives the metallic foam enhanced strength and low creep which it would not have on its own.
B29C 43/18 - Moulage par pressage, c. à d. en appliquant une pression externe pour faire couler la matière à mouler; Appareils à cet effet pour la fabrication d'objets de longueur définie, c. à d. d'objets séparés en incorporant des parties ou des couches préformées, p.ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
B29C 43/28 - Moulage par pressage, c. à d. en appliquant une pression externe pour faire couler la matière à mouler; Appareils à cet effet pour la fabrication d'objets de longueur indéfinie en incorporant des parties ou des couches préformées, p.ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
C22C 47/06 - Prétraitement des fibres ou des filaments par façonnage des fibres ou des filaments en une structure préformée, p.ex. en utilisant un liant temporaire afin de former un élément analogue à un mat
C22C 47/08 - Fabrication d'alliages contenant des fibres ou des filaments métalliques ou non métalliques par mise en contact des fibres ou des filaments avec un métal fondu, p.ex. en imprégnant les fibres ou les filaments placés dans un moule
C22C 49/14 - Alliages contenant des fibres ou des filaments métalliques ou non métalliques caractérisés par les fibres ou les filaments
C25D 5/54 - Dépôt électrochimique sur des surfaces non métalliques
A measurement fixture has a plurality of optically-detectable elements, preferably infrared LEDs. In use, an object is attached in fixed spatial relationship to the fixture, and an optical measuring device detects the elements to provide 6D relative tracking of the object relative to a reference. This allows for improved control and accuracy, particularly in machining operations and in the control of robots.
A blade for a rotating machine, particularly for a gas turbine engine, has a leading edge and a trailing edge joined by pressure and suction surfaces. The trailing edge has a serrated form comprising a first periodic variation and a second periodic variation of higher frequency and lower amplitude than the first periodic variation.
A gas turbine fan or compressor abradable liner comprises an abradable polymeric matrix having a plurality of dispersed dry lubricant particulates. The dry lubricant particulates reduce heat caused by friction and which may affect either the material of the blade or the casing.
F01D 11/12 - Prévention ou réduction des pertes internes du fluide énergétique, p.ex. entre étages pour obturations de l'espace entre extrémités d'aubes du rotor et stator utilisant un élément de friction allongé, p.ex. un élément d'usure, déformable ou contraint de façon élastique
F04D 29/52 - Carters d'enveloppe; Tubulures pour le fluide énergétique pour pompes axiales
F02C 7/05 - Entrées d'air pour ensembles fonctionnels de turbines à gaz ou de propulsion par réaction comportant des dispositifs pour empêcher la pénétration d'objets ou de particules endommageantes
81.
CONDITION MONITORING OF A SYSTEM CONTAINING A FEEDBACK CONTROLLER
An asset condition monitoring system having a plurality of sensors for taking readings of operational variables of the asset and a feedback controller. The feedback controller is arranged to receive data indicative of the operational variables measured by said sensors and to generate one or more internal signals. Those internal signals are used by the feedback controller to generate control instructions for controlling operation of the asset. The system also has a condition monitoring device arranged to receive one or more of the internal signals from the feedback controller and to determine an operational condition of the asset based there-upon. The monitoring unit may also receive the control instructions from the feedback controller and/or the operational data from the sensors.
F02C 9/00 - Commande des ensembles fonctionnels de turbines à gaz; Commande de l'alimentation en combustible dans les ensembles fonctionnels de propulsion par réaction alimentés en air ambiant
This invention relates to a generator arrangement (10), comprising: a generator (12) located within a flow passage (16) wherein the flow passage (16) has an inlet and an outlet, and the generator (12) includes at least one contra-rotating blade arrangement (13) which is configured to be rotated about a principle axis (22) of the generator (12) by a flow of liquid (17) in the flow passage, and wherein the at least one blade (13) has an adjustable pitch; an array of sensors (222-228) located downstream of the blade arrangement for detecting the outlet flow conditions; a controller (26) for determining the outlet flow conditions on the basis of conditions sensed by the sensor array; and, a pitch control system (24) for adjusting the pitch of the at least one blade so as to affect the flow conditions at the outlet of the flow passage.
F03B 3/06 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails particuliers les concernant à écoulement à travers les rotors essentiellement axial, p.ex. turbopropulseurs à aubes réglables, p.ex. turbines Kaplan
A temperature indicating paint is provided. The paint is spreadable onto a surface of an article. The paint includes particles of an alloy of two or more metals. The particles vary in relative composition of the metals such that particles having different compositions have different solidus and liquidus melting temperatures.
G01K 11/06 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant la fusion, la congélation ou le ramollissement
84.
A TURBINE ARRAY AND A METHOD OF CONTROLLING A TURBINE ARRAY DURING A LOSS-OF-GRID EVENT
A turbine array (2) comprising: a plurality of turbines (4); an electrical machine connected to each of the turbines and to an electrical grid; wherein at least one of the electrical machines (4) is a motor-generator which can operate in a motor mode or a generator mode, and wherein the other electrical machines (4) are generators; and a controller (10) for detecting a loss-of-grid event; wherein the controller (10) sets the motor-generator to the motor mode when a loss-of-grid event is detected, the motor- generator being driven by the generators and thereby providing a load to the generators.
F03B 3/10 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails particuliers les concernant caractérisées par des moyens permettant le fonctionnement tour à tour comme pompes ou comme turbines
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
A shaft break detection system (68a) and a method of detecting shaft break for a gas turbine engine. A first indication is calculated from measured rotational speed of a shaft. A second indication (68b) is calculated from the rotational speed. A shaft break signal is generated if both indications are true.
A method of detecting shaft break in a gas turbine engine (10) having a shaft system (48). The shaft system (48) comprising a shaft (36) that couples a compressor (16) and a turbine (24). First construct a frequency model (60) of the shaft system (48). Then determine a notch frequency (fN) and a first torsional frequency (fu) for the shaft system (48) from the model (60). Then in real time measure a rotational speed of the shaft (36); detect the presence or absence of a feature (62, 64) at at least one of the notch frequency (fN) and the first torsional frequency (f1T) in the measured speed; and generate a shaft break signal in response to the absence of at least one of the features (62, 64).
G01M 15/14 - Test des moteurs à turbine à gaz ou des moteurs de propulsion par réaction
F01D 21/04 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p.ex. indiquant cette position
G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur
A method to approximate the actual wall distance of a point in a numerical model, comprising steps to solve a Poisson equation numerically and then calculate a Poisson velocity component therefrom; define a hybrid velocity having the Poisson velocity component and a Hamilton-Jacobi velocity component; evaluate the hybrid velocity numerically using an initial assumption; and iteratively calculate an approximate wall distance by solving a Hamilton-Jacobi equation using the hybrid velocity and re-evaluate the hybrid velocity using the approximate wall distance from the previous step until the wall distance converges.
The invention relates to a gas turbine combustion chamber having an outer combustion chamber wall (10), which is concentric with respect to a gas turbine central axis (101), and an inner combustion chamber wall (9), having a plurality of burners (1) arranged so as to be distributed over the circumference of the combustion chamber, and having air inlet recesses which are formed so as to be distributed over the circumference on an outer combustion chamber wall (10) and on an inner combustion chamber wall (9) in at least one radial plane, wherein the burner (1) is formed so as to generate a swirling flow, wherein air inlet recesses (11, 12, 12a, 13, 18, 19, 19a, 20) which are assigned to a burner (1) are dimensioned to be of different sizes in order to generate air flows of different magnitude, characterized in that at least one of the respective air inlet recesses (11, 12, 12a, 13, 18, 19, 19a, 20) is formed so as to supply air in the flow direction of the swirl of the combustion chamber flow and is provided with flow-guiding walls (31).
An electromagnetic machine, comprising: a first stator winding having a first number of pole pairs; a second stator winding having a second number of pole pairs which is different to the first number of pole pairs; and, a modulator having a plurality of pole pieces arranged relative to the first and second stator windings so as to modulate the electromagnetic fields produced by the first and second stator windings, thereby matching harmonic spectra of the first and second stator windings.
An apparatus (1) for immobilising a component (3) during a machining operation is provided. The component has a securing region and an elongate body (4) to be machined extending therefrom. The apparatus has a clamp (2) which is configured to immobilise the component at the securing region. The clamp, in use, exerts clamping forces on the securing region. The apparatus further has a support fixture (1, 7 )which is movable relative to the clamp to confine the elongate body at a support region (6) thereof distal from the securing region. The support fixture is configured such that, without exertion of clamping forces on the support region by the support fixture, the confined support region is unable to move during the machining operation.
A torque-limiting coupling is provided for connecting coaxial, first and second rotating shafts. The coupling comprises a first connecting part on an end of the first shaft, a second connecting part on an end of the second shaft, and an interconnector. The interconnector joins to the first connecting part at a first engagement formation, and joins to the second connecting part at a second engagement formation. The first engagement formation is a threaded engagement formation which threadingly joins the interconnector to the first connecting part. The second engagement formation is configured to resist rotational movement of the interconnector relative to the second connecting part, but to allow movement of the interconnector in the axial direction of the shafts. When a torque transmitted by the shafts exceeds a predetermined value, the interconnector rotates relative to the first connecting part at the threaded engagement formation. The resistance to rotational movement relative to the second connecting part causes the interconnector to move in an axial direction of the shafts, and come out of engagement with the first and/or the second connecting part.
A method for electrical discharge machining a workpiece includes the steps of: presenting an elongate electrode to the workpiece with a spark gap therebetween; flowing a dielectric fluid in the gap; eroding the workpiece by electrical discharge between the tip of the electrode and the workpiece; displacing the electrode in a direction aligned with the long axis of the electrode to maintain the gap as the electrode wears and the workpiece is eroded; and simultaneously with the displacement, producing vibratory movement of the electrode, the vibratory movement being aligned with the long axis of the electrode.
B23H 7/26 - Appareils pour déplacement ou positionnement de l'électrode par rapport à la pièce; Montage de l'électrode
B23H 7/30 - Déplacement de l'électrode dans la direction d'avance
B23H 7/38 - Action sur l'usinage du métal par des moyens spécialement adaptés non directement impliqués dans l'enlèvement du métal, p.ex. ondes ultrasonores, champs magnétiques, rayonnement laser
B23H 1/10 - Alimentation en milieu d'usinage ou régénération de celui-ci
A method of inspecting an article is provided, the method comprising: applying an organic liquid substance over at least a portion of the article to be inspected so as to form a surface layer thereon, wherein said surface layer is luminescent; irradiating the article with the surface layer thereon; and scanning the article to determine its shape.
G01B 11/25 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes en projetant un motif, p.ex. des franges de moiré, sur l'objet
This invention relates to a bolt retention clip (10), comprising: a base plate (12) having a seat portion for the bolt head (18); first (14) and second (16) arms extending from opposing sides of the base plate so as define a bolt head zone (17) in which the bolt head sits in use; and, an axis which is coaxial with the longitudinal axis of the bolt when in use, wherein the first and second arms each have a resilient outwardly curving portion (26), and a contacting surface (32) in series with the outwardly curving portion for contacting the side of the bolt head in use.
F01D 5/06 - Rotors à plus d'un étage axial, p.ex. du type à tambour ou à disques multiples; Leurs parties constitutives, p.ex. arbres, connections des arbres
F16B 37/04 - Dispositifs pour fixer les écrous à des surfaces, p.ex. à des feuilles, à des plaques
F16B 39/10 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par une plaque ou un anneau immobile par rapport au boulon ou à l'objet
A turbomachine casing assembly comprising a casing (30) adapted to encase an aerofoil structure (26), the aerofoil structure having a tip (48), a leading edge (44) and a trailing edge (46), the casing substantially surrounding the tip of the aerofoil structure, wherein the casing has a set-back portion (54) extending from a position in the region of the leading edge (44) or the trailing edge (46) of the aerofoil structure (26) part way towards a position in the region of the respective other edge (46; 44) and set back from the remainder of the casing away from the aerofoil structure, such that the set-back portion permits a flow over a corresponding portion of the tip of the aerofoil structure.
F01D 11/12 - Prévention ou réduction des pertes internes du fluide énergétique, p.ex. entre étages pour obturations de l'espace entre extrémités d'aubes du rotor et stator utilisant un élément de friction allongé, p.ex. un élément d'usure, déformable ou contraint de façon élastique
F01D 11/18 - Régulation ou commande du jeu d'extrémité des aubes, c.à d. de la distance entre les extrémités d'aubes du rotor et le corps du stator par des moyens auto-réglables utilisant des éléments stator ou rotor ayant un comportement thermique déterminé, p.ex. isolation sélective, inertie thermique, dilatation différentielle
F01D 25/06 - Systèmes antivibratoires pour empêcher la vibration des aubes
96.
METHOD OF DAMPING AEROFOIL STRUCTURE VIBRATIONS AND CORRESPONDING AEROFOIL STRUCTURE
A method of damping aerofoil structure vibrations, the method comprising: providing an aerofoil structure (26) having a root portion (36) and an aerofoil portion (38), wherein the aerofoil portion has a tip (48) remote from the root portion, the tip of the aerofoil structure being substantially surrounded by a casing (30) with a clearance gap (60) between the tip and the casing; disposing the aerofoil structure (26) relative to the casing (30) such that an oscillation of the aerofoil structure from an unperturbed position in a first direction reduces the clearance gap (60) and that an oscillation from the unperturbed position in a second direction increases the clearance gap; further disposing the aerofoil structure (26) such that the frequency of the clearance gap variation is equivalent to the frequency of the aerofoil structure vibration; and permitting a flow through the clearance gap (60), the flow tending to damp the aerofoil structure vibrations.
F01D 25/06 - Systèmes antivibratoires pour empêcher la vibration des aubes
F01D 5/26 - Dispositifs antivibratoires non limités à la forme ou à la structure des pales ou aux connections aube à aube
F01D 11/18 - Régulation ou commande du jeu d'extrémité des aubes, c.à d. de la distance entre les extrémités d'aubes du rotor et le corps du stator par des moyens auto-réglables utilisant des éléments stator ou rotor ayant un comportement thermique déterminé, p.ex. isolation sélective, inertie thermique, dilatation différentielle
F02K 3/06 - Ensembles fonctionnels comportant une turbine à gaz entraînant un compresseur ou un ventilateur soufflant dans lesquels une partie du fluide énergétique passe en dehors de la turbine et de la chambre de combustion l'ensemble fonctionnel comprenant des soufflantes carénées, c. à d. des soufflantes à fort débit volumétrique sous basse pression pour augmenter la poussée, p.ex. du type à double flux comprenant une soufflante avant
A blade comprising a root portion (36) and an aerofoil portion(38), wherein the aerofoil portion (38) has a tip (48) remote from the root portion (36), and a leading edge (44) and a trailing edge (48), and wherein the tip (48) of the aerofoil portion (38) has a set-back portion (54) extending from the leading edge (44) or the trailing edge (48) of the aerofoil portion (38) part way towards the respective other edge (48; 44) and set back from the remainder of the tip (48) of the aerofoil portion (38) towards the root portion (36).
A dynamo-electric machine, for example a marine propulsion unit, comprises a stator (14) and a rotor in the form of an impeller (4). The impeller (4) is rim-driven and comprises an annular core (10) of ferromagnetic material, on which are provided layers (16, 18, 20) in the form of an environmental enclosure (20) and electrically conductive sleeves (16, 18). Appropriate selection of the materials and thicknesses of the layers (16, 18, 20) enables the starting and normal running performance of the machine to be optimised.
H02K 1/04 - MACHINES DYNAMO-ÉLECTRIQUES - Détails du circuit magnétique caractérisés par le matériau employé pour l'isolation du circuit magnétique ou de parties de celui-ci
B63H 21/17 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs par moteur électrique
F03B 17/06 - Autres "machines" ou machines motrices utilisant un écoulement de liquide, p.ex. du type à clapets oscillants
H02K 7/14 - Association structurelle à des charges mécaniques, p.ex. à des machines-outils portatives ou des ventilateurs
H02K 17/16 - Moteurs asynchrones à induction avec des rotors à enroulement court-circuité à l'intérieur de la machine, p.ex. des rotors à cage
H02K 21/14 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
99.
AXIAL DISPLACEMENT AND ROTATIONAL SPEED MONITORING
Apparatus, for example for a pitch change mechanism, comprising a cylinder having a magnetically encoding portion defining an annular array of features extending parallel to the longitudinal axis of the cylinder, the cylinder rotating in use and able to translate longitudinally. There is a sensing arrangement comprising a stationary magnetised core and two coils connected in series and wound around the core. In use the cylinder rotates and current is induced in the coils. Monitoring equipment is arranged to calculate rotational speed of the cylinder from the frequency of the current and to calculate longitudinal position from the relative amplitude of the current in each coil.
G01P 3/488 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en mesurant la fréquence du courant ou de la tension engendrés de signaux ayant la forme d'impulsions délivrés par des détecteurs à réluctance variable
B64C 11/30 - Mécanismes de changement de pas des pales
G01B 7/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques
G01D 5/22 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p.ex. une armature mobile influençant deux bobines par une action différentielle
An energy store charging system is provided for an electric vehicle for use typically in premises having a mains electrical supply. The system comprises a load sensor arranged to determine the total concurrent electrical loads on the same mains electrical supply circuit and a charging circuit connected to said mains supply for delivering power to the energy store. A controller is arranged to limit the power drawn by the charging circuit in dependence upon a comparison between the total concurrent electrical load and a maximum threshold power supply deliverable via the incoming mains electrical supply line.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p.ex. charge équilibrée progressivement
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
B60L 11/18 - utilisant de l'énergie fournie par des piles primaires, des piles secondaires ou des piles à combustibles
brevets
