Abrégé

An equipment maintenance system determines a support method to support equipment failures comprising: an asset knowledge database registers equipment failures and their causes, an input section receives fault information output from the equipment, a cause of failure presumption section refers to the asset knowledge database and presumes the causes of failure based on information received by the input section, a support method determination section determines the method to support the presumed cause of failure, a cost estimating section estimates the cost required for the determined support method determination section dividing into the cost of on-site support, in which technicians visit the site where the equipment is installed, and the cost of remote support, in which technicians support the equipment remotely, and an output section outputs the support method with the lowest cost among the cost of on-site support and the cost of remote support estimated by the cost estimating section.

Classes IPC  ?

• G06Q 30/0283 - Estimation ou détermination de prix
• G06Q 10/20 - Administration de la réparation ou de la maintenance des produits

Abrégé

The conduction reliability of a fitting connection portion between a recess and a protrusion of a stator coil of a rotary electrical machine is improved. The stator coil is formed by a first coil segment 30 including a protrusion 35 at one end and a second coil segment 40 including a recess 46 at one end. A projection side surface 35b of the protrusion 35 is a metal surface of the first coil segment 30, and a metal plating layer 50 having a lower hardness than a metal of the first coil segment 30 is formed on a metal surface of an inner wall surface 46b of the recess 46. When the coil segments 30 and 40 are joined together, the metal surface of the projection side surface 35b comes into contact with the metal plating layer 50, and therefore, gaps between both projections 38a and grooves 38b and the metal plating layer 50 are closed, and the contact resistance is reduced.

Classes IPC  ?

• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements

Abrégé

This diagnosis system diagnoses a monitoring target instrument by using a computer comprising a processor and a memory. The processor: receives operation data that contains the control which has been performed periodically over the monitoring target instrument, and the running time of the instrument which has been run according to said control; and gives a diagnosis of abnormality with respect to the instrument in an inefficient operation state, on the basis of a determination as to whether or not a prescribed relationship is satisfied between the control and the running time of the instrument contained in the operation data.

Classes IPC  ?

• G01M 3/02 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide
• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux

Abrégé

To provide a technique that enables recovery of oil stored in a gear casing without using a pump. A compressor 100 includes: a rotor 9 that compresses air; an electric motor 42 that drives the rotor 9; a gear that transmits the drive of the electric motor 42 to the rotor 9; a gear casing 22 that houses the gear; an oil tank 11 that stores oil separated from the compressed air; an oil supply passage 25 that extends from the oil tank 11 to the gear casing 22; an oil recovery passage 26 that extends from the gear casing 22 to a compressor intake portion 20; and an oil pressurizing passage 27 that extends from a discharge port 14b to the gear casing 22. Oil is supplied from the oil tank 11 to the gear casing 22 via the oil supply passage 25 by discharge pressure of the compressor 100, and the gear casing 22 is pressurized via the oil pressurizing passage 27 by the discharge pressure, thereby recovering oil from the gear casing 22 to the compressor intake portion 20 via the oil recovery passage 26.

Classes IPC  ?

• F04C 29/02 - LubrificationSéparation du lubrifiant
• F04C 18/08 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés

Abrégé

The present invention comprises: a diagnostic condition determination unit that determines a predetermined diagnostic condition on the basis of a diagnostic frequency, motor speed, and output voltage modulation rate for performing abnormality diagnosis; a control change unit that reduces the modulation rate on the basis of the determination result of the diagnostic condition determination unit; and an abnormality diagnosis unit that performs equipment abnormality diagnosis from a motor current on the basis of the determination result of the diagnostic condition determination unit.

Classes IPC  ?

• G01R 31/34 - Tests de machines dynamoélectriques
• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions

Abrégé

A technique that can prevent a worker from being exposed to contaminants when an abnormality has occurred in a remote blower of a building is provided. A safety cabinet includes: an opening portion for exhausting air in a work space; an exhaust duct connected to the opening portion; a remote blower that sends the air in the work space to outdoors from the exhaust duct; a backup exhaust duct branched from the exhaust flow path of the exhaust duct; a backup remote blower that sends the air in the work space to outdoors from the backup exhaust duct; and a safety cabinet control unit that transmits an startup signal to the backup remote blower when it detects that the remote blower has stopped operating.

Classes IPC  ?

• B01L 1/00 - EnceintesChambres
• B08B 15/02 - Précautions prises pour empêcher les crasses ou les fumées de s'échapper de la zone où elles sont produitesRamassage ou enlèvement des crasses ou des fumées de cette zone par utilisation de chambres ou de hottes recouvrant cette zone

Abrégé

A safety cabinet includes: an opening portion for exhausting air in a work space; an exhaust duct connected to the opening portion; a remote blower that sends the air in the work space to outdoors from the exhaust duct; and a safety cabinet control unit that transmits a signal to an arithmetic processing device, which notifies the worker based on the values indicating the operating state of the remote blower.

Classes IPC  ?

• F24F 11/526 - Aménagements pour l’indication, p. ex. écrans émettant des signaux audibles
• B01L 1/00 - EnceintesChambres
• F24F 3/163 - Postes de travail en air pur, c.-à-d. zones sélectionnées à l'intérieur d'une enceinte dans lesquelles de l’air filtré est acheminé

Abrégé

To provide a compressor and a control method of a compressor that improve the reliability of an operation under a high ambient temperature environment. An operation of an electric motor is controlled on the basis of either a normal operation mode or a heat safety mode in which a set pressure for regulating an operation of the electric motor according to a pressure in a tank for storing compressed air is lowered either when an ambient temperature exceeds a first temperature threshold value or when a difference between the ambient temperature and the temperature of a discharge section area exceeds a temperature difference threshold value for HS mode.

Classes IPC  ?

• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

A technique is provided that can prevent damage to a waste heat recovery heat exchanger. An air compressor includes cooling heat exchangers that perform heat exchange between cooling water and compressed air, and a cooling liquid pipe through which the cooling water flows. A waste heat recovery unit includes waste heat recovery heat exchangers that perform heat exchange between waste heat recovery water and compressed air, a waste heat recovery liquid pipe through which the waste heat recovery water flows, a waste heat recovery liquid inlet pipe and a waste heat recovery liquid outlet pipe that connect an auxiliary cooling facility and the waste heat recovery liquid pipe, flow path switching three-way valves that open and close the inlet and outlet pipes, and a temperature controller that controls the valves. When the temperature of the waste heat recovery water exceeds a threshold, the temperature controller opens the inlet and outlet pipes by controlling the three-way valves.

Classes IPC  ?

• F28F 27/00 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

An air compression device having a buffer tank provided at a predetermined position in an air return pipe for temporarily storing return air is provided.

Classes IPC  ?

• F04B 41/02 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles comportant des réservoirs
• F04B 41/06 - Combinaisons de plusieurs pompes
• F04B 49/22 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes par clapets
• F04B 53/08 - RefroidissementChauffagePrévention du gel

Abrégé

To provide a power conversion device and a motor control system capable of implementing stable speed control even if a speed response is enhanced. Therefore, there are provided a power converter 2 that converts DC power into AC power and outputs the AC power to an induction motor based on AC voltage command values vu*, vv*, and vw* in stationary coordinates, and a controller CT that calculates the voltage command values in the stationary coordinates by vector control. The controller CT adds, to a steady-state value of a slip frequency determined by a d-axis current (id), a q-axis current (iq), and a secondary time constant (T2), a transient value determined by differential calculation using the d-axis current (id) and the q-axis current (iq) to calculate a slip frequency command value ωs**.

Classes IPC  ?

• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

A clean air equipment that has a method for determining filter clogging that is both accurate and cost-effective. A clean air equipment having a filter, a wind speed sensor that measures the air speed after passing through the filter, a differential pressure sensor that measures the pressure difference before and after the filter, forming the second life prediction line so as to fit a changing rate of the first life prediction line obtained from the initial value of either one of the wind speed sensor or the differential pressure sensor and the value at the time of correction measurement with a changing rate of the second life prediction line obtained from another one of the wind speed sensor or the differential pressure sensor, managing the filter based on the first life prediction line or the second life prediction line.

Classes IPC  ?

• B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
• B01D 46/44 - Commande de la filtration

Abrégé

An operation of an inkjet recording device is performed without performing operations, such as interruption of an ink circulation process in an idle state and resetting, in a state in which execution of the ink circulation process is maintained. Ink is supplied to a nozzle to perform printing on a printing target. An idle-mode ink circulation process circulates ink in an idle state, the idle-mode ink circulation process repeating the circulation of the ink in a path, and a standby state at a predetermined time interval. An operation display unit displays a standby screen for the idle-mode ink circulation process and displays information for operating the inkjet recording device on the standby screen in a state in which execution of the idle-mode ink circulation process is maintained. The inkjet recording device receives an operation of the inkjet recording device based on the information displayed on the standby screen.

Classes IPC  ?

• B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
• B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
• B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
• B41J 2/175 - Systèmes d'alimentation en encre

Abrégé

High frequency excitation heating equipment has a first iron core support member disposed inside the iron core, a second iron core support member disposed outside the iron core, and a fastening member fastened while insulating the first and second iron core support members, the first and second iron core support members are acyclic. A high-frequency induction coil disposed around the first iron core support member, the second iron core support member, and the iron core. A power source supplies AC power to the high-frequency induction coil. A function generator generates alternating current. A program adjuster generates a control signal that commands the function generator. At least one of the first and second iron core support members has a temperature sensor, and the measured value of the temperature sensor is input to the program controller, which feedback controls the AC power according to the measured value of the temperature sensor.

Classes IPC  ?

• H05B 6/36 - Agencements des bobines
• H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
• H05B 6/04 - Sources de courant
• H05B 6/06 - Commande, p. ex. de la température, de la puissance

Abrégé

In order to achieve high accuracy of detecting a sign of cooling performance deterioration, a sign detection system includes: a pre-processing unit acquiring operation data of a time series about a cooling target apparatus and extracting features from the operation data, the cooling target apparatus including a temperature rise source and a cooling unit cooling the temperature rise source, and a sign detection unit diagnosing cooling performance of the cooling unit, based on an output obtained by inputting the features extracted from the operation data for diagnosis to a sign detection model, the sign detection model being constructed using training data generated based on the features extracted from the operation data for training and a label indicating a state of the cooling performance. The sign detection model is constructed using the training data generated based on the features extracted from the operation data including the operation statuses corresponding to the being operating and the being on standby. When diagnosing the cooling performance, the sign detection unit inputs the features extracted from the operation data including only the operation statuses corresponding to the being operating, to the sign detection model.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique
• G06F 11/30 - Surveillance du fonctionnement

Abrégé

In an inkjet recording device that uses a pigment-based ink, an ink device is provided in which ink sticking in an ink path and the precipitation of pigment components in an ink container, which occur when printing is not performed over a long period, can be suppressed, and the pigment-based ink can be jetted in a short time at the restart of the printing. The inkjet recording device uses a pigment-based ink. A control section 7 executes a printing mode performing a printing operation and a rest mode not performing the printing operation. In the rest mode, the control section 7 forcibly performs the stirring of a pigment-based ink 68A in an ink container 31 and the circulation of the ink in an ink circulation path not including a printing head (S300) or the circulation of the ink in an ink circulation path including the printing head (S400). Accordingly, it is possible to suppress ink sticking in the ink circulation path and the precipitation of pigment components in an ink container, which occur when printing is not performed over a long period, and to jet the pigment-based ink in a short time at the restart of the printing.

Classes IPC  ?

• B41J 2/185 - Collecteurs d'encreIntercepteurs d'encre
• B01F 33/45 - Mélangeurs magnétiquesMélangeurs avec agitateurs à entraînement magnétique
• B01F 35/22 - Commande ou régulation
• B01F 101/35 - Mélange d'encres ou de toners
• B41J 2/035 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu par champ électrique ou magnétique
• B41J 2/175 - Systèmes d'alimentation en encre
• B41J 2/20 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour prévenir ou détecter la souillure des composés

Abrégé

A scroll-type fluid machine includes a casing that houses an orbiting scroll and a plurality of auxiliary crank mechanisms, a leg section that is disposed on a radially outer edge portion of the casing and supports the casing, and a reinforcing rib that extends on the leg section in the axial direction. The casing includes bearing bosses that each house a casing-side bearing of the auxiliary crank mechanism. The bearing boss has an outer circumferential surface and an end surface that form part of the outer surface of the casing. The reinforcing rib extends from the leg section to the bearing boss so as to be connected to the leg section and to the outer circumferential surface and the end surface of the bearing boss.

Classes IPC  ?

• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Abrégé

To provide a package type compressor capable of recovering carbon dioxide in the air while reducing pressure loss. Provided is a package type compressor including: a compressor main body that compresses air; a cooler that cools, by heat exchange with air, compressed air discharged from the compressor main body; a housing that houses the compressor main body and the cooler; at least one first air inlet that is formed in the housing and takes in the air before being compressed by the compressor main body and the air before being used by the cooler; and a first air outlet that is formed in the housing and discharges air after being used by the cooler, in which at least one adsorption material for adsorbing carbon dioxide in the air, and at least one holding section for holding the adsorption material so as to be spaced apart outward with respect to at least one of the first air inlet and the first air outlet are provided.

Classes IPC  ?

• B01D 53/04 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration 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
• B01D 53/26 - Séchage des gaz ou vapeurs

Abrégé

To provide a scroll-type fluid machine capable of improving the workability of connection between a discharge cylinder of a fixed scroll member and a discharge pipe or a joint. A scroll-type compressor includes: a fixed scroll member that has an end plate, a wrap, cooling fins, and a discharge cylinder; an orbiting scroll member that has an end plate and a wrap; a driving shaft that causes the orbiting scroll member to orbit relative to the fixed scroll member; and a fixed cover that is attached to a tip side of the cooling fins of the fixed scroll member. The discharge cylinder 2 of the fixed scroll member extends from the end plate of the fixed scroll member beyond an inner surface of the fixed cover.

Classes IPC  ?

• F04C 29/04 - ChauffageRefroidissementIsolation thermique
• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Abrégé

A method for controlling an inkjet recording device includes providing a print head and providing a main body. The method also includes controlling, when the print head is set in the head cleaning unit, the supply of the ink to the nozzle and the recovery of the discharged ink from the gutter, wherein the gutter is located between the nozzle and recovery container. The method also includes providing a plurality of ink circulation path. The method also includes connecting, a pump to the circulation paths, and circulating, using the pump, the ink in a state where the print head is set in the head cleaning unit.

Classes IPC  ?

• B41J 2/02 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu
• B41J 2/08 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la commande du jet pour une déviation selon plusieurs angles différents du type à commande par la charge
• B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
• B41J 2/175 - Systèmes d'alimentation en encre
• B41J 2/185 - Collecteurs d'encreIntercepteurs d'encre

Abrégé

A screw fluid machine that suppresses power loss by preventing a residual volume from being generated at a discharge-side end face while thinning a tooth tip of a male rotor is provided. In a screw fluid machine in which a male rotor 2 including a plurality of teeth and a female rotor corresponding to the male rotor 2 are rotated to compress and convey a fluid, when viewed in an axial direction, a cross-sectional tooth profile 21d in a first section in the vicinity of an end portion on a discharge side of the male rotor 2 is formed thick so as to be located outside a pitch point-centered circle CP at a tooth tip and on an advancing surface side of the tooth tip, and a cross-sectional tooth profile 21s in a second section in the vicinity of an end portion on a suction side is formed thin so as to be located inside the pitch point-centered circle CP. A cross-sectional tooth profile of the male rotor 2 between the first section and the section in the axial direction is configured to continuously change from a second cross-sectional shape to a first cross-sectional shape.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/02 - LubrificationSéparation du lubrifiant

Abrégé

To provide a power conversion device capable of making miniaturization and a stable operation compatible with each other. Therefore, a smoothing capacitor 21 outputs a high-side potential of a DC voltage, and a smoothing capacitor 22 is connected in series with the smoothing capacitor 21 and outputs a low-side potential of the DC voltage. An inverter circuit 103 converts the DC voltage output from the smoothing capacitors 21 and 22 into an AC voltage. A control circuit 104 controls the inverter circuit 103. The inverter circuit 103 is mounted on a main circuit board 61. Each of the smoothing capacitors 21 and 22 is arranged such that an axial direction, which defines its longest size, is substantially parallel to a plane direction of the main circuit board 61. The smoothing capacitor 21 is arranged at a position farther away from the control circuit 104 than the smoothing capacitor 22.

Classes IPC  ?

• H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif 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 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif

Abrégé

A liquid-cooled screw compressor (100) that takes in a gas and generates a compressed gas includes a screw rotor (2, 3), a casing (1) that stores the screw rotor (2, 3) and forms a working space (C) together with the screw rotor (2,3), and a cartridge (6) that is a separate member from the casing (1). A liquid feed path (7) that supplies a liquid to the working space (C) is formed by the casing (1) and the outer surface of the cartridge (6).

Classes IPC  ?

• F04C 29/04 - ChauffageRefroidissementIsolation thermique
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis

Abrégé

An encoder model and a decoder model, which are machine learning models, are used for inspection of the inspection target. The encoder model is a model in which inspection target data is input and an abnormality degree of the inspection target is output. The decoder model is a model in which an OK/NG value, which is a value indicating whether the inspection target is normal or abnormal, and a feature amount of data of the inspection target are input, and when the input OK/NG value indicates an abnormality, restored data of the inspection target based on the input feature amount is output.

Classes IPC  ?

• G06T 7/00 - Analyse d'image

Abrégé

To provide a packaged air-cooled air compressor capable of recommending cooler cleaning at the proper timing while controlling cost increase. The package-type, air-cooled air compressor has two cooling paths to the air-cooled cooler and motor, two cooling air intake ports where these cooling paths take in outside air, a fan and outlet that collectively exhaust cooling air after cooling the cooler and motor to the outside, and a bearing located at both ends of the motor shaft. The controller calculates the temperature difference between the bearings located upstream (anti-load side) and downstream (load side) of the motor shaft in the cooling air flow direction, and determines that the cooler is clogged if the temperature difference is less than a threshold value.

Classes IPC  ?

• F04C 28/28 - Dispositions de sécuritéSurveillance
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/04 - ChauffageRefroidissementIsolation thermique

Abrégé

Efficient recovery of thermal energy. An exhaust heat recovery system comprising: a plurality of gas compressors; a exhaust heat recovery equipment; and a controller, wherein further comprising a exhaust heat recovery path connecting the plurality of gas compressors and the exhaust heat recovery equipment, and the plurality of gas compressors can select whether or not to use the exhaust heat recovery path based on instructions from the controller, the controller compares the set required water temperature with the supply water temperature, which is the temperature of the water supplied from the exhaust heat recovery equipment to the outside, and at least one of the plurality of gas compressors is instructed to use the exhaust heat recovery path when the supply water temperature is lower than the required water temperature.

Classes IPC  ?

• F22D 1/18 - Appareils de chauffage d'eau d'alimentation, p. ex. préchauffeurs avec tubes d'eau disposés ailleurs que dans le foyer de la chaudière, les tubes de fumées ou sur le trajet des fumées et à chauffage indirect
• F04B 39/06 - RefroidissementChauffagePrévention du gel

Abrégé

The present invention achieves a more lightweight rotor of a rotating electrical machine, and reduces the magnetic resistance of the q-axis while reducing the amount of rotor deformation during high-speed rotation. A plurality of magnet insertion holes 126a-126c of a rotator are located line-symmetrically about the d-axis, which is the magnetic pole central axis. On the inner peripheral side of the magnet insertion holes 126a, 126c close to the q-axis, lightening holes 128, 129 shaped to have curves are formed. The cross-sectional shapes of the lightening holes 128, 129 are arranged such that a nearest point 70 from a rotation axis A1 coincides with a curved portion having the largest curvature. The magnet insertion holes 126a, 126c and a straight part of the lightening holes are arranged to be at a constant distance S for the entirety of the opposing portions thereof, wherein an outermost peripheral position 50 on the side forming a lightening hole is positioned farther to the outer periphery than an end part 60 closest to the central axis of the rotator on the side forming a magnet insertion hole.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]
• H02K 1/32 - Parties tournantes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement

Abrégé

A rotary motor comprises a stator; and a rotor having a core with a plurality of permanent magnets embedded therein and held inside the stator for rotation around a rotation axis, wherein the magnets are in the outer circumference of the core, spaced apart in a circumferential direction, and have magnetic poles at both ends in the circumferential direction. The core has a plurality of lightening holes in the circumferential direction on the rotation axis side of the permanent magnets; each hole having a bottom wall surface extending in the circumferential direction on the rotation axis side, an outer circumferential wall surface on the outer circumferential side, and a side wall surface between the bottom wall surface and the outer wall surface; and the outer wall surface has an inclined portion that approaches the rotation axis as it moves from the center of the permanent magnets toward the magnetic pole.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

A technique adjusts a control parameter between a motion control system and a low-order system for motor control. A controller inputs a motion control deviation based on computation of a motion control command and a motion control response into a first control device, and outputs a servo control command based on a first control gain. A servo amplifier as a motor control apparatus includes a second control device, a power converter, and a control gain estimator. The motor control apparatus inputs a signal based on the servo control command and the motion control response into the second control device, inputs a signal output from the second control device into the power converter, and supplies a motor with a signal from the power converter. The control gain estimator inputs the servo control command and the motion control deviation or the motion control command therein and estimates the first control gain.

Classes IPC  ?

• H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
• H02P 23/14 - Estimation ou adaptation des paramètres des moteurs, p. ex. constante de temps du rotor, flux, vitesse, courant ou tension

Abrégé

There included are a rotor (3), a stator core (21) having a plurality of slots (21c) between the rotor (3) and a back yoke (21a), resin bobbins (22) each of which includes a plurality of coil insertion holes (22a) arranged along a radial direction of the stator core (21) and is fit into the slot (21c), and a first gap hole (22ca) provided to a side wall (22c) that is closest to the back yoke (21a) among side walls of the bobbin (22).

Classes IPC  ?

• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 3/32 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement

Abrégé

A power regeneration converter is disposed between an inverter outputting a three-phase alternating current (AC) to an electric motor and a three-phase AC power source which is an input system, and supplies induced electric power generated by the motor to the three-phase AC power source, wherein a control unit calculates a three-phase AC voltage target value for performing PWM based on a three-phase AC voltage of the input system detected by an AC voltage detection unit, a three-phase AC detected by an AC detection unit, and a direct current (DC) voltage between the inverter and the power regeneration converter detected by a DC voltage detection unit, and controls the DC voltage between the inverter and the power regeneration converter based on the calculated three-phase AC voltage target value. An output DC voltage is maintained, overmodulation, noise, switching loss, heat generation, and insulation degradation of a load device are decreased.

Classes IPC  ?

• H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif 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 - Détails d'appareils pour transformation
• H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
• H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
• H02M 7/79 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande

Abrégé

The present invention includes: a stator core (21) having a slot (21a); a bobbin (22) fitted in the slot (21a) and having a through hole (22c) penetrating in an axial direction of the stator core (21); a coil (23) inserted in the through hole (22c); a plurality of protrusions (22e) that protrude from at least one of an inner periphery of the through hole (22c) and an outer periphery of the coil (23), and guide the position of the coil (23) in the through hole (22c); and a resin filled on the periphery of the coil (23) in the through hole (22c).

Classes IPC  ?

• H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p. ex. isolement d'encoches
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches

Abrégé

The invention provides an inkjet marking apparatus and an inkjet marking system enabling it to remotely perform maintenance management including a print head cleaning process and the like. There is disclosed an inkjet marking apparatus equipped with a print head including a nozzle which spouts out ink while the ink turns into particles, a charging electrode which gives charge to ink particles spouted out, a deflecting electrode which deflects the charged ink particles, and a gutter which collects non-used ink; a main unit equipped with an ink supply path to supply ink in an ink container to the print head, an ink collection path to collect ink not used for printing into the ink container, a solvent supply path to supply a solvent in a solvent container to the ink container, and flow rate regulators which regulate flows of the ink and the solvent in these respective paths; a main unit controller which controls operation of the flow rate regulators in the main unit and the print head; and a head receptacle unit including a head holding part to set and hold the print head secured in place and a print head detector which detects that the print head has been set secured in place, wherein the main unit controller starts jetting of the ink from the nozzle when a preset start time comes, provided that it is detected that the print head has been set secured in the head receptacle unit.

Classes IPC  ?

• B41J 2/02 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu
• B41J 2/085 - Moyens de charge, p. ex. électrodes
• B41J 2/09 - Moyens de déviation
• B41J 2/185 - Collecteurs d'encreIntercepteurs d'encre
• B41J 3/46 - Mécanismes d'impression combinés avec des appareils donnant une indication visuelle
• B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
• G06Q 10/0631 - Planification, affectation, distribution ou ordonnancement de ressources d’entreprises ou d’organisations

Abrégé

A rotating electric machine including: a rotor (200); a stator core (110) having a slot (111) provided with an opening portion (112) on the rotor (200) side; a bobbin (150) that is fitted into the slot (111), and into which a coil (140) is inserted; a projecting portion (152) disposed on the opening portion (112) side in the bobbin (150); and a resin (160) fixing the stator core (110), the coil (140), and the bobbin (150) to each other.

Classes IPC  ?

• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches

Abrégé

To provide an inkjet recording device on which maintenance management such as printing head cleaning processing can remotely be performed, and an inkjet recording system. The inkjet recording system includes the inkjet recording device, a server connected to the inkjet recording device, a network connected to the server, and an external control device connected to the network to control the inkjet recording device via the server. The inkjet recording device includes: a printing head including a nozzle that particulates ink and ejects ink particles, a charging electrode that charges the ink particles, a deflection electrode that deflects the charged ink particles, and a gutter that collects the unused ink; a main body control unit that controls the printing head; and a head mounting unit including a printing head mounting portion for containing the print head and a printing head detector that determines whether or not the printing head is contained. The external control device includes: a head mounting checking means that at least checks whether or not a state where the printing head is mounted in the head mounting unit is established; and an ink ejection checking means that checks whether or not the ink is ejected from the nozzle of the printing head.

Classes IPC  ?

• B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
• B41J 2/085 - Moyens de charge, p. ex. électrodes
• B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
• B41J 2/175 - Systèmes d'alimentation en encre
• B41J 2/185 - Collecteurs d'encreIntercepteurs d'encre
• B41J 29/377 - Dispositions pour le refroidissement ou la ventilation
• G06F 3/12 - Sortie numérique vers une unité d'impression

Abrégé

A compressor has a piston that has a piston ring groove in an outer circumferential surface formed of a curved surface and reciprocates while rocking in a cylinder, a piston ring that is mounted in the piston ring groove and slides on an inner circumferential surface of the cylinder, and a crankshaft that reciprocates the piston through a connecting rod. A center axis of the cylinder is disposed at a position separate from a rotation axis of the crankshaft. A rotation stopper for the piston ring is disposed in the piston ring groove. Joint gaps of the piston ring are located on a side of the outer circumferential surface of the piston pressed against the inner circumferential surface of the cylinder in a compression process.

Classes IPC  ?

• F04B 53/02 - Garnissage de l'espace libre entre des cylindres et des pistons
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F16J 9/24 - Organes empêchant la rotation des segments dans leurs gorges
• F16J 9/28 - Segments de piston, leurs logementsSegments d'étanchéité de structure similaire en général caractérisés par l'emploi de matériaux particuliers de matériaux non métalliques

Abrégé

A suction flow path of a screw compressor includes a male-side flow path that opens in an axial direction with respect to working chambers in a suction process on the male rotor side and extends from a starting end positioned on one side of a virtual plane to a first termination end positioned on the other side; and a female-side flow path on the female rotor side that extends from the starting end to a second termination end positioned on the other side of the virtual plane. The male-side or the female-side first flow path wall is configured such that at least a partial area in a range from the starting end to the first or the second termination end is closer to a male-side or female-side rotor lobe section from the starting end side toward the first or second termination end side.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement

Abrégé

t.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/04 - ChauffageRefroidissementIsolation thermique

Abrégé

A transfer device receives data from a transmission source device, and stores the program group and initial setting information, the transfer device includes: wherein each program in the program group matches a reception protocol pertaining to reception of data from the transmission source device, a processing protocol pertaining to the process, or a transmission protocol pertaining to transmission of data to the destination device, wherein the initial setting information defines designation information that designates, for each protocol, the program matching the protocol, and wherein the processor executes: a reception process of receiving input of a first setting parameter to a first program that matches the reception protocol and the transmission protocol; an acquisition process of acquiring first designation information for designating the first program with reference to the initial setting information; and an activation process of activating the first program using the first designation information and the first setting parameter.

Classes IPC  ?

• H04L 41/0806 - Réglages de configuration pour la configuration initiale ou l’approvisionnement, p. ex. prêt à l’emploi [plug-and-play]
• H04L 67/06 - Protocoles spécialement adaptés au transfert de fichiers, p. ex. protocole de transfert de fichier [FTP]
• H04L 69/18 - Gestionnaires multi-protocoles, p. ex. dispositifs uniques capables de gérer plusieurs protocoles

Abrégé

A sliding material includes a resin, first particles disposed in the resin and composed of an inorganic material, and second particles disposed in the resin and composed of an inorganic material whose Vickers hardness is higher than a Vickers hardness of the first particles. When a value obtained by dividing a Vickers hardness of the second particles by the Vickers hardness of the first particles is defined as a hardness ratio and when a value obtained by dividing a contained amount of the first particles with respect to the resin by a contained amount of the second particles with respect to the resin is defined as a content ratio, a value obtained by dividing the hardness ratio by the content ratio is greater than or equal to 0.3 and less than or equal to 2.8.

Classes IPC  ?

• C10M 107/38 - Compositions lubrifiantes caractérisées en ce que le matériau de base est un composé macromoléculaire contenant des halogènes
• C10M 125/04 - MétauxAlliages
• C10M 125/02 - CarboneGraphite
• C10M 125/22 - Composés contenant du soufre, du sélénium ou du tellure
• C10N 10/02 - Groupes 1 ou 11
• C10N 10/06 - Groupes 3 ou 13
• C10N 20/00 - Propriétés physiques particulières des constituants des compositions lubrifiantes
• C10N 40/30 - Lubrifiants pour machines frigorifiques

Abrégé

A gas compressor includes: a low pressure gas path that introduces compressed gas delivered from a low pressure stage compressor body into a high pressure stage compressor body; a first low pressure gas release valve disposed on a first low pressure branch path branched from the low pressure gas path; a high pressure gas path that introduces the compressed gas delivered from the high pressure stage compressor body to a demand destination; a first high pressure gas release valve disposed on a first high pressure branch path branched from the high pressure gas path; and a control device. The first low pressure branch path is disposed on a downstream side of a heat exchanger for low pressure stage exhaust heat recovery. The first high pressure branch path is disposed on a downstream side of a heat exchanger for high pressure stage exhaust heat recovery. The control device opens the first low pressure gas release valve and the first high pressure gas release valve at a time of switching from load operation to no-load operation.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/02 - LubrificationSéparation du lubrifiant
• F04C 29/04 - ChauffageRefroidissementIsolation thermique

Abrégé

Provided is a power conversion device that realizes stable, highly accurate, and highly efficient control characteristics by suppressing pulsation in a speed of a driven motor and suppressing pulsation in torque. The power conversion device that drives a magnet motor includes: a first filter unit that includes a primary system transfer function filter that varies in correspondence with a pulsating component of the magnet motor, and computes a second speed estimation value from a speed command value and a first speed estimation value; a speed control unit that computes a first torque current command value from the speed command value and the second speed estimation value; and a second filter unit that includes a secondary system transfer function filter that varies in correspondence with the pulsating component, and computes a second torque current command value from the first torque current command value. Power to be supplied to the magnet motor is controlled on the basis of the second torque current command value.

Classes IPC  ?

• H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
• H02P 21/18 - Estimation de la position ou de la vitesse
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

A gateway device collects equipment data and judges whether or not there is any anomaly in the collected equipment data according to a judgement rule(s). An analysis server having an analysis unit transmits and receives information to and from the gateway device and analyzes the received information. An input-output unit executes input and output of the server judgement rule(s), and the gateway device transmits data including a judgement result and the equipment data to the analysis server, wherein the analysis server analyzes the transmission data, and if equipment data indicating an anomaly different from an anomaly defined by the judgement rule(s) exists in the equipment data, the analysis server updates information of the server judgement rule(s) based on input information and transmits the updated information to the gateway device; and the gateway device updates information of the judgement rule(s) based on the server judgement rule information.

Classes IPC  ?

• G06F 11/30 - Surveillance du fonctionnement
• H04L 12/66 - Dispositions pour la connexion entre des réseaux ayant différents types de systèmes de commutation, p. ex. passerelles

Abrégé

To provide a power conversion device capable of realizing stable and highly-accurate control of a magnet motor. A processor of a power conversion device computes a first power (first reactive power) from voltages (voltage command values) and currents (current detection values) of a magnet motor. The processor computes a second power (second reactive power) from electric circuit parameters of the magnet motor, steady components (current detection values) and transient components of the current of the magnet motor, and a frequency estimation value of the magnet motor. The processor estimates a phase deviation (phase error) indicating the deviation (difference) between the phase of control and the phase (phase of the magnet) of the magnetic flux of the magnet motor such that the first power follows the second power. The processor computes the frequency estimation value from the estimation value of the phase deviation.

Classes IPC  ?

• G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet
• G01R 21/133 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance en utilisant des techniques numériques
• G01R 25/00 - Dispositions pour procéder aux mesures de l'angle de phase entre une tension et un courant ou entre des tensions ou des courants
• H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 21/24 - Commande par vecteur sans utilisation de détecteurs de position ou de vitesse du rotor
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

A management system includes: a measurement data acquisition unit that acquires measurement data, the measurement data being time-series data related to operation of a device; an index computation unit that computes an index based on the measurement data; a credit calculation unit that compares the index before and after a change is made to the device and calculates credits as compensation for reducing an emission of greenhouse gas; and a credit management unit that associates part of the calculated credits with a user of the device. The credit management unit associates part of the calculated credits with an operator of the management system or a producer of the device.

Classes IPC  ?

• G06Q 30/0208 - Commerce ou échange de biens ou de services contre des incitations ou des récompenses
• G06Q 30/0601 - Commerce électronique [e-commerce]

Abrégé

An oil feed type compressor includes a compressor body (2) that compresses a gas while oil is being injected therein, a first oil separator (6) that separates oil from the compressed gas delivered from the compressor body (2), a second oil separator (8) that further separates oil from the compressed gas from which the oil has been separated by the first oil separator (6), the second oil separator (8) having a reservoir (8bd) for storing the separated oil, a delivery pipe system (90) through which the compressed gas from which the oil has been separated by the second oil separator (8) flows, an oil discharge passage (10) that discharges the oil having been stored in the reservoir (8bd) from the reservoir (8bd), a valve body (10a) included in the oil discharge passage (10), and a controller (11) that controls the opening of the valve body (10a) over time.

Classes IPC  ?

• F04C 29/02 - LubrificationSéparation du lubrifiant
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis

Abrégé

A compressor includes a compressor body, a motor, a current sensor that detects a current value of the motor, and a control device that controls the drive of the motor, and the control device computes, through the current sensor, a current value (I1) of the motor at a point in time when first time has elapsed from the start of the motor and a current value (I2) of the motor at a point in time when second time longer than the first time has elapsed from the start of the motor, and makes a notification in a different mode.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité
• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques

Abrégé

A motor control device that controls a machine comprising an identification part estimating moment of inertia and viscous friction, a speed command generation part generating a speed command obtained by integrating an acceleration command, a difference signal calculation part calculating a difference signal from the acceleration command with time difference, and an identification interval judgment part determining a valid interval for operate the identification part based on the difference signal, and operating the identification part in the valid interval and driving the motor based on the speed command generated by the speed command generating part, wherein the identification part estimates the moment of inertia and the viscous friction.

Classes IPC  ?

• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 21/18 - Estimation de la position ou de la vitesse

Abrégé

A power converter comprising, a power conversion unit converts DC voltage to AC voltage corresponding to the device to be operated, a current detection section detects the output current from the power conversion section, a memory section that stores the reference value of the output current detected by the current detection section or the reference value of the value to be monitored from the device to be operated, and the upper and lower limit values determined from the reference value, a control unit controls the power conversion unit, wherein the control unit calculating a frequency of states exceeding the upper limit or the frequency of states below the lower limit, comparing the frequency with a predetermined frequency to determine if there is an abnormality.

Classes IPC  ?

• G01R 23/15 - Indication de ce qu'une fréquence d'impulsions est, soit supérieure ou inférieure à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée, en utilisant des éléments non linéaires ou numériques
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

There is provided an oil-free air compressor that prevents oil from entering a compressor body by preventing a reverse rotation of the compressor body when the compressor is in shutdown, while improving the rust prevention effect, and that has improved reliability. An oil-free air compressor 100 includes an oil-free compressor body 1 that compresses air, and that outputs the compressed air; a cooler 5 that is connected to the compressor body, and that cools the compressed high-temperature air; a dry air supply mechanism for supplying dry air to an output side of the compressor body; and a mechanism for preventing a reverse rotation of the compressor body during a shutdown of the compressor.

Classes IPC  ?

• F04C 29/02 - LubrificationSéparation du lubrifiant
• F04C 18/10 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés du type à axe interne, l'organe externe ayant plus de dents ou de parties équivalentes de prise, p. ex. de rouleaux, que l'organe interne
• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
• F04C 29/04 - ChauffageRefroidissementIsolation thermique
• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement

Abrégé

An inkjet recording device automatically determines an excitation voltage of a piezoelectric element for formation of ink droplets. An excitation voltage value is applied to the piezoelectric element of a nozzle over a plurality of sweeping events. A charge voltage is applied to ink droplets generated by the applied excitation voltage value in a plurality of arbitrary printing phases to give an electric charge thereto. A charge amount given to the ink droplets is detected by a sensor to obtain a printing phase. When the relationship of a current printing phase to a previous printing phase detected for each sweeping event is reversed from an increasing side to a decreasing side and two decrease determinations of the printing phase are established in succession, an excitation voltage value corresponding to the printing phase of the sweeping event immediately before the first decrease determination is set as a final excitation voltage value.

Classes IPC  ?

• B41J 2/115 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la commande du jet en synchronisant la séparation de la gouttelette et le temps de charge
• B41J 2/02 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu
• B41J 2/025 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu par vibrations
• B41J 2/03 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu par pression
• B41J 2/035 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu par champ électrique ou magnétique
• B41J 2/085 - Moyens de charge, p. ex. électrodes
• B41J 2/09 - Moyens de déviation
• B41J 2/12 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la commande du jet en testant ou en corrigeant la charge ou la déviation
• B41J 2/125 - Capteurs, p. ex. capteurs de déviation
• B41J 2/18 - Systèmes de recirculation de l'encre

Abrégé

A controller 1 is provided with: a motor controller (10, 11, etc.) that supplies a drive current to a motor 3, which is a power source of a processing device so as to place the motor 3 in a normal operating state, and, in response to multiplexed commands (S1, S2) that are sent from outside and relate to a safety function operation of the processing device, controls the drive current so as to place the motor 3 and the processing device in a safety stop state; and a command monitoring unit 16 that monitors whether or not the commands (High/Low of S1, S2) match each other. If a period during which the commands do not match exceeds an allowable value, the command monitoring unit 16 generates a safety stop signal Sd (High) for safely stopping the motor 3, and continuously sends the safety stop signal Sd (High) to the motor controller. This configuration makes it possible to facilitate construction of a safety system that uses the controller.

Classes IPC  ?

• H02P 3/18 - Dispositions pour l'arrêt ou le ralentissement de moteurs, génératrices électriques ou de convertisseurs dynamo-électriques pour arrêter ou ralentir individuellement un moteur dynamo-électrique ou un convertisseur dynamo-électrique pour arrêter ou ralentir un moteur à courant alternatif
• H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
• H02P 23/14 - Estimation ou adaptation des paramètres des moteurs, p. ex. constante de temps du rotor, flux, vitesse, courant ou tension
• H02P 23/20 - Commande de l’accélération ou de la décélération
• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions

Abrégé

A screw compressor has first and second screw rotors that suck, compress, and deliver a working medium; a first bearing supporting one end of the first screw rotor coupled to a rotating shaft of a power source; a casing housing the first screw rotor and first bearing; a shaft-sealing member located on an opposite side of a tooth profiler for the first screw rotor relative to the first bearing and seals a through hole in the casing, through which a shaft of the first screw rotor coupled to the output shaft of the power source is inserted; a partition wall isolating the first bearing from the shaft-sealing member; and a liquid-supply route that is provided in the casing and has a first liquid supply opening for supplying a lubricating liquid to the shaft-sealing member and a second liquid supply opening for supplying the lubricating liquid to the first bearing.

Classes IPC  ?

• F04C 2/16 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes

Abrégé

The objective is to accurately estimate the electrical constants required for control of a three-phase induction motor for which the electrical constants are unknown. To achieve the above-mentioned purpose, a three-phase induction motor, a fixing mechanism that can fix the rotation axis of the three-phase induction motor, an inverter that drives the three-phase induction motor, a current detection means that detects the current of the three-phase induction motor, the current detection means for detecting the current of the three-phase induction motor and control the three-phase induction motor by using the inverter, wherein the inverter controls the three-phase induction motor with the rotating shaft fixed by the fixing mechanism, energizes DC current and three-phase AC current, and measures the electrical constant of the three-phase induction motor using the control voltage obtained as a result of the energization.

Classes IPC  ?

• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions

Abrégé

A power converter having a control unit that controls the output frequency, output voltage, and output current of the motor, wherein the control unit calculates a first torque current command from a deviation between a speed reference point and a speed estimate of the motor, The control unit switches the control mode to either a control mode that suppresses pulsation of the motor speed or a control mode that suppresses pulsation of the motor torque, and calculates a second torque current command from the first torque current command and the switched control mode.

Classes IPC  ?

• H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
• H02P 21/02 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour optimiser le rendement à faible charge
• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

The consumption of stored energy by an unmanned aerial vehicle is reduced by raising the unmanned aerial vehicle through an unmanned aerial vehicle support device, and accordingly, the cruising distance is increased. An unmanned aerial vehicle support device 10 includes a loading unit 1 and a control unit that controls raising and lowering of the loading unit. The loading unit 1 is raised to a predetermined height to enable the unmanned aerial vehicle 100 to take off. An unmanned aerial vehicle support system includes a server 5 that can communicate with the unmanned aerial vehicle support device 10 and selects a route on which the unmanned aerial vehicle 100 flies and one or more unmanned aerial vehicle support devices 10 on the route based on movement information including at least a departure point and a destination of the unmanned aerial vehicle input from the outside.

Classes IPC  ?

• B64U 70/50 - Lancement à partir de dispositifs de stockage, p. ex. à partir de tubes lance-missiles de sous-marin
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02P 27/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation

Abrégé

A male rotor of a screw compressor has a cooling flow path extending in an axial direction inside a discharge-side shaft section. A groove structure is provided at at least a part of a region on a wall surface of the cooling flow path between the position of a discharge-side end face of the male rotor and a mounting position of a discharge-side bearing. The groove structure includes grooves or a groove that has a lengthwise component in a circumferential direction of the screw rotor and that are spaced apart in the axial direction. A nozzle which is a stationary member is arranged inside the cooling flow path with a gap between the nozzle and the wall surface of the cooling flow path. The nozzle is arranged in such a manner as to overlap at least a part of the groove structure in the axial direction.

Classes IPC  ?

• F04C 29/04 - ChauffageRefroidissementIsolation thermique
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis

Abrégé

An inkjet printer prints predetermined information comprising dots formed by the ejected ink onto the print target. Images are captured of the predetermined information printed. The printing area of the predetermined information is detected from the image and a criteria position grid in which each of the predetermined divided dot areas is assigned with a dot as a criteria for inspecting the landing position is generated. The dot landing position is inspected relative to the criteria dot position based on a superimposed image of the printing area and the criteria position grid and a degree of displacement of the dot landing position relative to the criteria dot position is determined. A feedback signal for correcting the dot landing position is generated based on the result of the inspection and ink is ejected on the print target based on the corrected dot landing position obtained from the feedback signal.

Classes IPC  ?

• B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
• B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs

Abrégé

To provide a temperature indicator manufacturing system and a temperature indicator manufacturing method that reduce the labor and cost of management associated with temperature indicator manufacture. The temperature indicator manufacturing system includes: a marking device 12 that marks a base material with a temperature detecting material containing a matrix material and a temperature indicating material including at least a leuco dye, a color developer, and a decolorant; and an adhesive application device 13 that applies an adhesive onto the temperature detecting material provided as marking on the base material, wherein the adhesive is applied in a state where the temperature detecting material provided as the marking on the base material is solidified, and solidified before the temperature detecting material provided as the marking on the base material is liquefied.

Classes IPC  ?

• B65B 61/26 - Dispositifs accessoires, non prévus ailleurs, opérant sur feuilles, flans, bandes, attaches, réceptacles ou paquets pour marquer ou coder les paquets achevés
• B41J 3/407 - Machines à écrire ou mécanismes d'impression ou de marquage sélectif caractérisés par le but dans lequel ils sont construits pour le marquage sur des matériaux particuliers
• C09J 7/29 - Matériau stratifié
• C09J 7/35 - Adhésifs sous forme de films ou de pellicules caractérisés par la composition de l’adhésif activés par chauffage

Abrégé

A screw compressor includes a screw rotor including: a rotor lobe part and a discharge-side shaft part; and a casing having a housing chamber that houses the rotor lobe part, a shaft hole through which the discharge-side shaft part passes, and a liquid feed path that introduces a liquid to the shaft hole. A second shaft section of the discharge-side shaft part disposed in the shaft hole and the shaft hole of the casing have a first opposed surface and a second opposed surface opposed to each other with a gap. The discharge-side shaft part has an annular groove on the first opposed surface, and the liquid feed path opens at a position opposed to the annular groove on the second opposed surface of the shaft hole. The second shaft section of the discharge-side shaft part and the shaft hole of the casing have, in an area remoter from the rotor lobe part than the annular groove, a tapered structure as a structure with a diameter smaller toward such a direction as to get further away from the rotor lobe part.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles

Abrégé

A management device that can sense abnormality (deterioration) detection on a power transmission mechanism with higher precision and probability is implemented. A management device 30 for a power transmission mechanism that transmits a driving force from an electric motor 13 to a load-side device 12 includes a current acquiring section that acquires a current value of the electric motor 13 per unit process in which the power transmission mechanism is driven, a feature calculating section 121 that divides the unit process into multiple zones and calculates an average current value obtained by averaging the current value of each of the zones, and a diagnosis section 122 that executes abnormality detection. The diagnosis section 122 calculates a state amount estimation value on the basis of the average current value of the multiple zones, and executes abnormality sensing in the unit process on the basis of the state amount estimation value.

Classes IPC  ?

• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01R 31/34 - Tests de machines dynamoélectriques
• G05B 23/02 - Test ou contrôle électrique

Abrégé

A system receives a first position data set indicating a first positioning position of a shipped product with first frequency and receives a second position data set indicating a second positioning position of the product with second frequency. The system displays, on a map, at least one of n first position display objects respectively indicating n first positions based on N first position data sets and m second position display objects respectively indicating m second positions based on M second position data sets. A display mode for the n first position display objects is different from a display mode for the m second position display objects. The positioning type or the number of satellites is different between the first positioning position and the second positioning position.

Classes IPC  ?

• G06Q 10/0833 - Repérage
• G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
• G01S 19/48 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système

Abrégé

A communication system includes a management device connected to terminals. The terminal is configured to collect log information, send the log information to the management device, analyze the log information to determine whether an abnormal event occurs in the terminal and determining self-recovery processing, notify the management device of the self-recovery processing for the abnormal event, and execute the self-recovery processing for the abnormal event or recovery processing ordered by the management device. The management device is configured to analyze log information collected from the terminals to determine whether an abnormal event occurs in the terminal, determine recovery processing, receive a notification about self-recovery processing from the terminal, and issue an order to execute the recovery processing for the detected abnormal event to the terminal, depending on whether the notification has been received.

Classes IPC  ?

• G06F 11/00 - Détection d'erreursCorrection d'erreursContrôle de fonctionnement
• G06F 11/07 - Réaction à l'apparition d'un défaut, p. ex. tolérance de certains défauts

Abrégé

A safety work device having a plurality of HEPA filters in an exhaust system suppresses leakage of contaminants. The work device includes: a work space; a front shutter covering part of a front opening surface of the work space; a work opening portion below the front shutter, through which a worker puts hands to perform work; a rear port provided at a lower portion of a back surface of the work space to suction air; and an exhaust flow path provided behind the back surface of the work space to exhaust the air in the work space. A first HEPA filter for exhaust is disposed in a vertical direction in the exhaust flow path and behind the rear port, and a second HEPA filter for exhaust is disposed in the vertical direction in the exhaust flow path and on a downstream side of the first HEPA filter.

Classes IPC  ?

• B01D 46/42 - Équipement auxiliaire ou son utilisation
• B01D 46/62 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative montés en série
• B01D 46/88 - Remplacement des éléments filtrants
• F24F 3/163 - Postes de travail en air pur, c.-à-d. zones sélectionnées à l'intérieur d'une enceinte dans lesquelles de l’air filtré est acheminé
• F24F 8/108 - Traitement, p. ex. purification, de l'air fourni aux locaux de résidence ou de travail des êtres humains autrement que par chauffage, refroidissement, humidification ou séchage par séparation, p. ex. par filtrage utilisant des éléments filtrants secs

Abrégé

The gas compressor comprising a pre-filter for compressed air is placed at the compressed air intake of the enclosure for primary removal of dust, and an intake filter for further secondary removal of dust, at least one compressor body that draws in and compresses air a motor that drives the compressor body, air cooler cools compressed air, a cooling fan that passes cooling air to the air cooler, a cooling air intake that draws in more than the outside air by means of a cooling fan, a pre-filter for cooling air installed in the cooling air intake, and a controller for controlling an operation of the gas compressor, wherein the controller determines the frequency of cleaning or replacement of the pre-filter for compressed air and the pre-filter for cooling air based on the load factor, which is an indicator of the operating condition.

Classes IPC  ?

• F04B 39/16 - FiltrageDéshumidification
• F04B 39/06 - RefroidissementChauffagePrévention du gel
• F04B 41/00 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles
• F04B 49/06 - Commande utilisant l'électricité
• F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
• F04B 53/08 - RefroidissementChauffagePrévention du gel
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
• F04C 28/06 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour arrêter, pour démarrer, pour le ralenti ou pour un fonctionnement à charge nulle
• F04C 29/04 - ChauffageRefroidissementIsolation thermique

Abrégé

An inkjet recording apparatus is made capable of preventing ink from sticking during inactivity of the apparatus and, when viscosity of ink contained in a main ink container has fallen outside an appropriate range of viscosity, adjusting ink viscosity to fall within the appropriate range. The apparatus is configured to perform repetitively supplying a solvent contained in a solvent container to the print head and letting the solvent flow back to an ink container through a circulation path and a collection path at intervals of a certain period of time during inactivity of printing by the print head through controlling the print head and a main body.

Classes IPC  ?

• B41J 2/175 - Systèmes d'alimentation en encre
• B41J 2/185 - Collecteurs d'encreIntercepteurs d'encre
• B41J 2/195 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour contrôler la qualité de l'encre

Abrégé

A manager that manages a stock quantity of consumable items used in each of apparatuses, on a predetermined management aggregation basis, an obtainer that obtains consumable item information pertaining to a consumption degree of the consumable items used in each of the apparatuses, from each of the apparatuses, and a determiner that determines necessity of replacement of any of the consumable items, based on the consumable item information about the consumable item obtained by the obtainer, are provided. Based on actual replacement of the consumable item determined to have the necessity of replacement by the determiner, the manager updates the stock quantity in a management aggregation to which the consumable item belongs.

Classes IPC  ?

• G06Q 10/0875 - Énumération ou classification des pièces, des fournitures ou des services, p. ex. nomenclatures

Abrégé

Provided are a deterioration diagnosis device and deterioration diagnosis method that make it possible to carry out accurate deterioration diagnosis that takes into consideration not only vibration quantity but also other vibration factors such as vibration cycle. This deterioration diagnosis device is provided separately from or so as to be integrated with an electric motor control device comprising a power converter for outputting power for driving an electric motor connected to a device to be driven, a position controller for outputting a speed command value corresponding to the deviation between a position command value and an electric motor position detection value, a speed controller for outputting a torque current command value corresponding to the deviation between the speed command value and an electric motor speed detection value, and a current controller for adjusting the output current of the power converter according to the deviation between the torque current command value and a detection value for the torque current supplied to the electric motor. The deterioration diagnosis device comprises a deterioration diagnosis unit for carrying out electric motor deterioration diagnosis corresponding to electric motor driving information and a vibration information storage device for storing the diagnosis results of the deterioration diagnosis unit. The deterioration diagnosis unit stores a plurality of types of information relating to the electric motor vibration state that have been calculated from the driving information in the vibration information storage device and determines that vibration has occurred if the information relating to the vibration state of the electric motor is larger than a prescribed threshold.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique

Abrégé

An equipment management device includes: an abnormality detection unit that detects abnormality in equipment on the basis of information obtained by measuring the state of the equipment; a maintenance management unit that manages maintenance of the equipment using the abnormality detection result as input, calculates maintenance costs, and plans a maintenance plan; an operation management unit that manages operation of the equipment using the abnormality detection result as input and plans an operation plan; an energy consumption change estimation unit that estimates change in the energy consumption of the equipment from the abnormality detection result; an energy management unit that manages the energy consumption of the equipment using the estimated change in energy consumption as input and calculates energy costs; and a costs comparison unit that compares the costs information calculated by the energy management unit and by the maintenance management unit.

Classes IPC  ?

• G06Q 10/20 - Administration de la réparation ou de la maintenance des produits
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

Provided is a compressor including a compressor unit that includes a compressor body that compresses gas and a motor that drives the compressor body, and a controller that carries out the operation number control for a plurality of the compressor units. The plurality of compressor units are connected to the same pipe. The controller causes, while continuing the operation number control for the compressor units that are a target of the operation number control, the compressor unit excluded from the target of the operation number control to start.

Classes IPC  ?

• F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti
• F04B 41/06 - Combinaisons de plusieurs pompes
• F04B 51/00 - Tests des "machines", pompes ou installations de pompage

Abrégé

A transformer diagnostic system having an insulating oil and a winding comprising a detection part detects a temperature at the top and bottom of the insulating oil and hydrogen, an arithmetic unit determines abnormality based on the detected values from the detection part.

Classes IPC  ?

• G01R 31/62 - Test de transformateurs
• G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive
• H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
• H01F 27/40 - Association structurelle de composants électriques incorporés, p. ex. fusibles

Abrégé

An oil-feed-type air compressor includes a compressor main body driven by an electric motor, a separator that separates the oil from compressed air delivered from the compressor main body, an oil supply system that supplies the oil separated by the separator to working chambers of the compressor main body, an oil cooler that is disposed in the oil supply system and cools the oil by using cooling air generated by a cooling fan, and a controller. The controller stops the electric motor and the cooling fan when the continuation time of no-load operation has reached a predetermined value. Further, the controller predicts the return timing at which the electric motor is restarted, on the basis of a sensing history of the delivery-side pressure sensor, and predicts the delivery-side temperature of the compressor main body at the return timing.

Classes IPC  ?

• F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles
• F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti
• F04C 28/28 - Dispositions de sécuritéSurveillance
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 29/70 - Grilles d'aspirationFiltresSéparateurs de poussièreNettoyage

Abrégé

A reading system reading a color density of a printed matter formed with an ink whose color density changes depending on a surrounding environment comprises a reading apparatus and an information processing apparatus. The printed matter comprises a first region (reference region) formed with the ink and a second region (sensor region) formed with the same ink for the first region. The first region is in a state of colored or decolored. A color density of the second region is different from that of the first region. The reading apparatus obtains an image including the first region and the second region. The information processing apparatus determines color information of the second region by using color information of the first region as a reference. The type of printed matters includes a circle type, a double-circle type, a dot type, a barcode type, a QR code type and the like.

Classes IPC  ?

• G06K 7/14 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire utilisant la lumière sans sélection des longueurs d'onde, p. ex. lecture de la lumière blanche réfléchie

Abrégé

A capacitance acquiring unit acquires a plurality of initial capacitance values indicating capacitance values of a smoothing capacitor in an initial state and acquires a plurality of operation capacitance values indicating capacitance values of the smoothing capacitor in an operation state, and a deterioration determining unit acquires characteristic information indicating a relationship between AC power and the capacitance value of the smoothing capacitor in the initial state on the basis of a statistic amount of the plurality of initial capacitance values acquired by the capacitance acquiring unit and determines a deterioration state of the smoothing capacitor on the basis of a statistic amount of the plurality of operation capacitance values acquired by the capacitance acquiring unit and the characteristic information.

Classes IPC  ?

• G01R 31/01 - Passage successif d'articles similaires aux tests, p. ex. tests "tout ou rien" d'une production de sérieTest d'objets en certains points lorsqu'ils passent à travers un poste de test
• G01R 27/26 - Mesure de l'inductance ou de la capacitanceMesure du facteur de qualité, p. ex. en utilisant la méthode par résonanceMesure de facteur de pertesMesure des constantes diélectriques
• G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

The servo system includes a servo motor, an encoder for detecting rotation information regarding the position and speed of the servo motor, and a servo amplifier for controlling the driving of the servo motor using the rotation information. The servo amplifier includes an encoder communication interface configured by hardware, a processor for calculating a control command to control the servo motor based on an operation command and the rotation information input through the encoder communication interface, and a control unit for controlling the driving of the servo motor based on the control command. Then, the processor compares the rotation information directly received from the encoder with the rotation information input through the encoder communication interface and diagnoses that there is a failure when both the pieces of rotation information do not match each other.

Classes IPC  ?

• H02P 29/024 - Détection d’un défaut, p. ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge

Abrégé

A safety cabinet has an opening portion in the front surface of a work room and a front shutter and supplies clean air to the work room from above. A side slit is provided in the side surface of the work room, air from the provided side slit joins an air flow path suctioned from a front grille of a workbench forming the bottom surface of the work room, and the turbulence of an airstream can be prevented even when a device is installed in the work room.

Classes IPC  ?

• B01L 1/02 - Chambres pressuriséesLeurs sas
• B01L 1/00 - EnceintesChambres

Abrégé

This screw compressor is provided with a screw rotor, a casing accommodating the screw rotor, and a liquid feed mechanism for feeding a liquid into an operating chamber enclosed by the casing, wherein the pitch of the screw rotor changes in the axial direction from a suction end surface toward a discharge end surface.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
• F04C 29/02 - LubrificationSéparation du lubrifiant

Abrégé

Designation of equipment identifying information for identifying object equipment that is the equipment which is an analysis object, and an analysis item to be analyzed regarding the object equipment is accepted; data of a data type which is required to analyze the accepted analysis item is acquired and a current equipment status of the object equipment is decided based on the acquired data; a diagnosis score for evaluating a current status of the object equipment as a score is calculated based on the decided equipment status of the object equipment and a diagnosis result of the object equipment is decided on the basis of the calculated diagnosis score; and the decided diagnosis result of the object equipment is visualized.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique

Abrégé

Provided is a novel inkjet printer system that can use machine learning to improve the inspection performance of a printing inspection device. The inkjet printer system includes, in the machine learning, a random test printing function unit (301) that has a function that prints a random dot arrangement that is based on various characters printed in the printing area of a printing target, and an evaluation function training function unit (302) that has a function that optimizes an evaluation function for inspecting a printed image on the basis of a captured image of the results of the printing.

Classes IPC  ?

• B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
• B41J 2/505 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par le procédé de formation de caractères applicable à plusieurs types de procédés d'impression ou de marquage à partir d'un ensemble d'éléments d'impression identiques
• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle

Abrégé

A multi-stage screw compressor includes a plurality of stages of compressor bodies that compress a gas in sequence. Each of the stages of compressor bodies has both male and female rotors that are housed revolvably in a casing in a mutually meshing state. The male and female rotors each include a rotor lobe section having a suction-side end face and a discharge-side end face on one end and the other end thereof in the axial direction and having a twisted lobe extending from the suction-side end face to the discharge-side end face. The male and female rotors in a downstream-stage compressor body of at least one certain stage, excluding an upstream-stage compressor body as the first stage, among the plurality of stages of compressor bodies are each configured such that their lead increases from the suction side in the axial direction of the rotor lobe section toward the discharge side.

Classes IPC  ?

• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
• F04C 18/08 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F25B 1/047 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif du type à vis

Abrégé

The present invention includes: an identification code generation unit that generates, from information of a company code including a first code that uniquely identifies a management target in a part of a company in the part of the company and a second code that identifies the part of the company, an identification code including a history of the management target; a hash processing unit that hashes the identification code generated by the identification code generation unit according to a hash function and converts the hashed identification code into a meaningless code; and a reference code generation unit that generates a reference code unified for the entire company based on the meaningless code converted by the hash processing unit.

Classes IPC  ?

• G06K 7/14 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire utilisant la lumière sans sélection des longueurs d'onde, p. ex. lecture de la lumière blanche réfléchie
• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]

Abrégé

A dynamo-electric machine comprising: a stator core with plurality of slots, a coil covered with insulated conductor wire, wherein the coil comprising plurality of storages stored in the slots and plurality of coil ends that are outside of the slots, conductor of coil end close to the conductor of the heterophase coil having insulating materials at only one of the surfaces, either the inner diameter surface close to the conductor of the heterophase coil or outer diameter surface of the heterophase coil.

Classes IPC  ?

• H02K 3/40 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement pour hautes tensions, p. ex. assurant une protection contre les effluves

Abrégé

A communication device comprising, a local communication unit communicating with an apparatus, a memory unit storing firmware for the apparatus, if the history of activation and deactivation as an external storage terminal by the apparatus is determined to be a predefined sequence, communication device that is not activated as an external storage terminal or that operates in such a way that the firmware is not visible from the apparatus.

Classes IPC  ?

• G06F 8/65 - Mises à jour

Abrégé

A power conversion device comprising, a power converter that outputs signal to the motor to vary the motor's output frequency, output voltage and output current and control unit that controls the power converter, the control unit is, calculating the first power from the output voltage and output current, calculating the second power from the output current, electrical circuit parameters and frequency estimates, calculating the first phase error estimate so that the first power follows the second power in the first frequency domain, calculating the second phase error estimate different from the first frequency domain in a second frequency domain, controlling the frequency estimates so that the first phase error estimate or the second phase error estimate follows the command value of the phase error estimate.

Classes IPC  ?

• H02P 21/24 - Commande par vecteur sans utilisation de détecteurs de position ou de vitesse du rotor
• H02P 21/18 - Estimation de la position ou de la vitesse
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

A compressor includes: a housing; a compressor body to compress gas; a motor to drive the compressor body; a control board to control the motor; and a tank to store the gas outputted from the compressor body, wherein the housing has: a machine chamber storing the compressor body and the motor; a B-chamber having piping to connect the compressor body with the tank; an A-chamber storing the tank; an A-partition separating the machine chamber from the A-chamber and B-chamber; and a B-partition between the A-chamber and the B-chamber, the A-chamber has an air intake port to introduce ambient air, the A-partition has an A-vent as a hole to communicate between the machine chamber and the A-chamber, and a suction port of the compressor body is located in vicinity to the A-vent.

Classes IPC  ?

• F04C 29/04 - ChauffageRefroidissementIsolation thermique
• F04B 41/02 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles comportant des réservoirs
• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Abrégé

A rotary electric machine (1000) including: a rotor (200); a stator (100) surrounding a periphery of the rotor (200); a first recessed portion (133) disposed in an inner circumferential surface of a back yoke (130) of the stator (100), and extending in an axial direction of the stator (100); and a tooth (120) having one end fitted in the first recessed portion (133), a clearance formed between the first recessed portion (133) and the one end of the tooth (120) fitted in the first recessed portion (133) being smaller in a circumferential direction of the stator (100) than in a radial direction of the stator (100).

Classes IPC  ?

• H02K 1/14 - Noyaux statoriques à pôles saillants
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 15/12 - Imprégnation, chauffage ou séchage des bobinages, des stators, des rotors ou des machines

Abrégé

A power converter apparatus comprising: a power converter that outputs signal to the magnet motor to vary the output frequency, output voltage and output current of the magnet motor, a control unit controls the power converter, wherein the control unit calculating the gain of the magnetic flux component of the q-axis, which varies with the phase of the magnet motor, calculating the d-axis induced voltage command value based on a value of the induced voltage coefficient, frequency estimates or frequency command value, and the gain of the flux component of the q-axis.

Classes IPC  ?

• H02P 21/26 - Commande basée sur le flux rotorique
• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande

Abrégé

A method of updating the program of a gas compressor system is provided. The system has gas compressors, a controller that controls the gas compressors by a program, a discharge piping system coupled with each of the gas compressors, and a control terminal that controls the controller of the gas compressors. Gas discharged from the discharge piping system is controlled by the controller by at least one of a predetermined pressure value and flow rate of the gas value, including obtaining a program update, updating the program for a first gas compressor in operation that is a target of the program update among the gas compressors, and operating at least one of a second or a third gas compressor of the gas compressors based on the predetermined pressure value and the predetermined flow rate of the gas value.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité
• F04B 41/06 - Combinaisons de plusieurs pompes
• G06F 8/65 - Mises à jour
• F04C 28/00 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles
• F04C 28/02 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour plusieurs pompes connectées en série ou en parallèle
• F04D 25/16 - Combinaisons de plusieurs pompes

Abrégé

A electric motor control device comprising a converter section converting AC voltage to DC voltage, an inverter section converting DC voltage from the converter section to AC voltage and supplying said AC voltage to electric motor, an inverter control unit controlling said inverter section, a current detection unit detecting the current flowing in said electric motors and a power calculation unit estimating the temperature of said electric motors from said detected current, calculating the resistance of said electric motors from said estimated temperature, and calculating the copper loss from said calculated resistance.

Classes IPC  ?

• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 25/022 - Moteurs synchrones
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

A motor-controller device includes a position control system that controls the position of a machine end connected to the motor. The motor-controller device receives a first speed directive from a high-level controller, stored in the position control system to output a motor axis position response to the high-level controller, including speed controller and vibration controller in speed control system. The vibration controller includes a position-command estimator that calculates an estimate of the location directive based on the first speed directive and the motor axis position response, a parallel vibration damping controller that extracts frequency components that excite vibration of the machine end included in the first speed directive based on the estimated value of the location directive, and outputs the extracted frequency components.

Classes IPC  ?

• H02P 23/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
• H02P 23/14 - Estimation ou adaptation des paramètres des moteurs, p. ex. constante de temps du rotor, flux, vitesse, courant ou tension
• H02P 23/18 - Commande de la vitesse angulaire conjointement avec la position ou phase angulaire

Abrégé

A screw compressor for compressing a working medium sucked through a suction opening and discharging the compressed working medium through a delivery opening, wherein the screw compressor includes: a male rotor and a female rotor that rotate while meshing with each other; a casing that houses the male rotor and the female rotor and is provided with a bore which forms a working chamber designed, together with the male rotor and the female rotor, to compress the working medium; a drive unit that rotationally drives at least one of the male rotor and the female rotor; a working chamber closing unit that forms a suction port for sucking the working medium into the working chamber and closes the working chamber when the working chamber reaches a specified capacity; and a suction space that connects the suction opening and the suction port to allow communication therebetween.

Classes IPC  ?

• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
• F04C 18/08 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
• F25B 1/047 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif du type à vis

Abrégé

A motor control device that supplies electric power to a motor is disclosed. The motor control device is provided with a storage unit to store position offset data and information of a machine origin position of the motor. The motor control device generates a command value of a position after offset by using an externally input position command and the position offset data and coverts electric power to be supplied to the motor based on the command value of a position after offset and position information that is input from an encoder. The position offset data is data in which offset positions and offset quantities have been recorded in a mapping relation. A start position of the offset positions differs from the machine origin position.

Classes IPC  ?

• G05B 19/404 - 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'un programme sous forme numérique caractérisée par des dispositions de commande pour la compensation, p. ex. pour le jeu, le dépassement, le décalage d'outil, l'usure d'outil, la température, les erreurs de construction de la machine, la charge, l'inertie

Abrégé

Rotating electrical machine comprising: a housing storing a stator and a rotor, a fan cover covers the housing from the outside, an end bracket attached to the axial end face of the housing, a cooling fan installed in the fan cover, wherein output shaft side end face of the fan cover has a convex portion extending in the axial direction, the end bracket on the output shaft side has a concave first exhaust opening part relative to the convex part of the fan cover, the end bracket on the anti-output shaft side has a second exhaust opening part on the opposite side of the first exhaust opening part.

Classes IPC  ?

• H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
• 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
• H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p. ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires

Abrégé

A casing of a screw compressor has a delivery inner wall face facing delivery end faces of a male rotor and a female rotor. The delivery inner wall face of the casing has a shield area that shields at least a part of a track of an axial fluid communication path, which is a clearance that periodically occurs at the delivery end faces according to variation of intermeshing of the male and female rotors upon rotation thereof and is bounded by trailing flanks of the male and female rotors. The shield area of the casing is provided with a groove group made up of a plurality of grooves having longitudinal directions. The grooves of the groove group are juxtaposed in the circumferential direction of at least one rotor of the male and female rotors and are arranged such that their sides extending in the longitudinal directions are disposed adjacent to each other. Each groove of the groove group is configured such that its longitudinal direction oriented from the inner circumferential side of the one rotor toward the outer circumferential side is inclined with respect to the radial direction of the one rotor in the same direction as the rotational direction of the one rotor.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 2/16 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles

Abrégé

A novel inkjet recording device that allows occurrence of scattering to be suppressed without limiting the size of a printed character (font size) is provided. The novel inkjet recording device is so configured that a deflection positive electrode, a deflection negative electrode, or both the deflection positive electrode and the deflection negative electrode constituting a print head can be moved along a direction of ejection of ink droplets in correspondence with the size of a printed character.

Classes IPC  ?

• B41J 2/09 - Moyens de déviation
• B41J 2/085 - Moyens de charge, p. ex. électrodes
• B41J 2/185 - Collecteurs d'encreIntercepteurs d'encre

Abrégé

This information processing device for executing applications holds, for each of the applications, a manifest file (user interface definition file) in which a user interface for the application is defined. The manifest file is designated with an attribute of data type for each item for defining a user interface object through which a setting item of the application is inputted/outputted. The information processing device generates the user interface object at which setting of the application is performed on the basis of the manifest file. Accordingly, for each of the applications, the user interface regarding setting of the application is unified, operability of a user is improved, and development efficiency of an application developer is improved.

Classes IPC  ?

• G06F 9/451 - Dispositions d’exécution pour interfaces utilisateur
• G06F 8/38 - Création ou génération de code source pour la mise en œuvre d'interfaces utilisateur

Abrégé

A gas compression system that can continue control of the number of operated pieces of a compressor even when an abnormality has occurred and a control method thereof are provided. The gas compression system includes compressors, a number-of-pieces controller that executes master control to control the number of operated pieces of the compressor, and a communication network that connects the compressors and the number-of-pieces controller with each other in a mutually communicable manner. Each compressor includes a compressor main unit that compresses a gas and a controller that executes slave control to control the compressor main unit in response to a command from the number-of-pieces controller. The respective controllers are configured to determine whether an abnormality of the number-of-pieces controller or an abnormality of communication with the number-of-pieces controller has occurred on the basis of whether a safety notification from the number-of-pieces controller is received and transmit a master declaration.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité
• F04B 41/02 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles comportant des réservoirs
• G06F 11/07 - Réaction à l'apparition d'un défaut, p. ex. tolérance de certains défauts

Abrégé

A laminar flow at a high air speed can be maintained, and contamination caused by operation of a device or operation of the device by a person can be suppressed as much as possible. There is provided a safety cabinet that supplies clean air into a work room from above, the cabinet including: an opening portion in a front surface of the work room; a front shutter; partition plates provided on right and left side surfaces and a back surface on an upper side of the work room; and a partition on a front upper side of the work room.

Classes IPC  ?

• F24F 3/163 - Postes de travail en air pur, c.-à-d. zones sélectionnées à l'intérieur d'une enceinte dans lesquelles de l’air filtré est acheminé
• B01L 1/02 - Chambres pressuriséesLeurs sas
• B01L 1/04 - Chambres ou enceintes sans poussière