Abrégé

The present invention comprises: a supercharger including a compressor and a turbine connected to the compressor via a rotary shaft; a pressure sensor for measuring the inlet pressure of the compressor; and a surging detection unit configured to detect the occurrence of surging in the compressor on the basis of the inlet pressure of the compressor measured by the pressure sensor.

Classes IPC  ?

• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 33/40 - Moteurs avec pompes autres que celles du type à piston alternatif avec pompes rotatives du type à déplacement non positif
• F02B 37/16 - Commande des pompes par dérivation de l'air de suralimentation
• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci
• F02D 23/02 - Commande des moteurs caractérisés par le fait d'être suralimentés les moteurs étant du type à injection de combustible
• F02D 45/00 - Commande électrique non prévue dans les groupes

Abrégé

A supercharger according to the present invention is provided with: a turbine rotor blade that is configured to be driven by exhaust gas discharged from an internal combustion engine; a stationary member that has a stationary wall surface facing the turbine rotor blade with a radial gap therebetween, and that includes a cylindrical section internally forming an outlet flow path through which flows the exhaust gas that has passed through the turbine rotor; a cooling medium passage which is provided adjacent to the stationary member and through which a cooling medium for cooling the stationary member can circulate; a cooling medium introduction line for guiding the cooling medium to the cooling medium passage; and a cooling medium flow rate adjustment device that is configured to be capable of adjusting the flow rate of the cooling medium guided to the cooling medium passage via the cooling medium introduction line, and that is configured to make the flow rate of the cooling medium guided to the cooling medium passage greater during low-load conditions of the internal combustion engine than during high-load conditions thereof.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F01P 3/20 - Circuits de refroidissement non spécifiques d'une pièce particulière des moteurs ou "machines"

Abrégé

This axial turbine comprises a turbine shaft, a turbine rotor vane cascade, and a turbine housing that has an exhaust chamber on the downstream side of the turbine rotor vane cascade. The turbine housing includes a flow guide section having an inner peripheral side wall surface that forms, between the inner peripheral side wall surface and an inner wall of the exhaust chamber, a diffuser flow passage for guiding a working fluid, which has passed through the turbine rotor vane cascade, toward the outside in the radial direction. Treating the shortest distance between a trailing edge end and a negative pressure surface of another turbine rotor vane adjacent thereto as the throat s, treating the pitch of the plurality of turbine rotor vanes as t, treating the vane height location of the vane roots as 0%, and treating the vane height location of the vane tips as 100%, in the distribution of the throat/pitch ratio in the vane height direction, the throat/pitch ratio at the 25% vane height location is smaller than a line segment connecting a vane root section and a center section in the vane height direction, and the throat/pitch ratio at the 75% vane height location is smaller than a line segment connecting the center section and a vane tip section.

Classes IPC  ?

• F01D 5/12 - Aubes
• F01D 25/30 - Têtes d'évacuation, chambres ou parties analogues
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

This vibration monitoring device for monitoring vibrations of a rotating body that includes an impeller portion of a rotating machine comprises: a rotation sensor which is disposed at a distance in the radial direction from the impeller portion, outputs a rotation signal synchronized with the rotation of the rotating body, and is configured such that the output of the rotation signal changes in accordance with the distance between the impeller portion and the rotation sensor; a segment acquiring unit which acquires a plurality of segments of the rotation signal in which the output exceeds a predetermined threshold; and a vibration signal acquiring unit which detects a peak value from each of the plurality of segments and acquires a vibration signal, which is a signal that is based on changes in the peak value and that relates to vibration of the impeller portion.

Classes IPC  ?

• G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci
• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

This vibration monitoring device comprises: a rotation sensor for outputting a rotation signal synchronized to rotation of a rotating shaft; a cut rotation signal generating unit for generating a cut rotation signal when the rotation signal is output from the rotating sensor, by replacing a part of the rotation signal equal to or greater than a predetermined limit value with the limit value, and leaving as the rotation signal, without modification, parts of the rotation signal that are less than the limit value; an offset rotation signal generating unit for generating an offset rotation signal obtained by offsetting the cut rotation signal to approach the limit value; and a first filter for extracting, from within the offset rotation signal, a signal in a passband set on the basis of a rotational speed of the rotating shaft, as a vibration signal enabling vibration information of the rotating shaft to be acquired.

Classes IPC  ?

• G01H 11/02 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques par des moyens magnétiques, p. ex. la réluctance
• F01D 25/04 - Systèmes antivibratoires
• G01D 5/20 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile

Abrégé

This seal structure for a supercharger comprises: a rotary member including a rotary shaft of the supercharger and a rotary wheel provided toward one end of the rotary shaft; a stationary member including a housing accommodating the rotary member; a bearing for rotatably supporting the rotary shaft; and a seal member provided in a seal gap that is formed between the rotary member and the stationary member and that establishes communication between a first space in which the rotary wheel is accommodated and a second space in which the bearing is accommodated. The stationary member includes a stationary-side inner circumferential surface that defines the seal gap and a stationary-side end surface that extends from an edge of the stationary-side inner circumferential surface on the second space side, along a radial direction of the rotary shaft. The stationary-side end surface includes a slope that is provided in a predetermined circumferential range below the axis of the rotary shaft and that, moving downward from the edge of the stationary-side inner circumferential surface on the second space side, is inclined toward the second space side in the axial direction of the rotary shaft.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

This seal structure for a supercharger comprises: a rotary member including a rotary shaft of the supercharger and a rotary wheel provided on one end side of the rotary shaft; a stationary member including a housing that stores the rotary member; a bearing that rotatably supports the rotary shaft; and a seal member provided in a seal gap that is formed between the rotary member and the stationary member to provide communication between a first space in which the rotary wheel is stored and a second space in which the bearing is stored. The stationary member includes a stationary-side inner peripheral surface defining the seal gap, and a stationary-side end surface extending from an edge of the stationary-side inner peripheral surface on the second space side along a radial direction of the rotary shaft. The stationary member has an oil discharge groove provided on the stationary-side end surface below an axis of the rotary shaft and extending downward along a vertical direction from the edge of the stationary-side inner peripheral surface on the second space side.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

In the present invention, a turbine comprises: a turbine impeller; an exhaust gas flow path formation part that forms an exhaust gas flow path for guiding exhaust gas from a scroll flow path formed on the outer peripheral side of the turbine impeller to the turbine impeller, the exhaust gas flow path formation part including a hub-side flow path surface and a shroud-side flow path surface that define the exhaust gas flow path; and at least one nozzle vane that is disposed in the exhaust gas flow path and is fixed to at least one of the hub-side flow path surface or the shroud-side flow path surface. The blade height W1, which is the axial-direction length of the at least one nozzle vane of the turbine impeller, is less than the flow path width W0, which is the axial-direction length of the exhaust gas flow path at a blade leading edge position in the turbine impeller.

Classes IPC  ?

• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs

Abrégé

The present invention is a fin stabilizer for suppressing swaying of a ship, the fin stabilizer comprising: a fin that is configured to be turnable around a rotation axis; a fin box that forms an internal space in which the fin is housed, the fin box including an opening for allowing the fin to go in and out of the internal space and a stern-side wall surface that is a wall surface on the stern side of the fin box; a groove part forming part that forms a groove part that is recessed with respect to the hull of the ship on the stern side of the fin box and connects the outer plate of the hull and the stern-side wall surface; and a closing part that partitions the internal space of the fin box and an external space of the hull on the stern side of the turning area of the fin.

Classes IPC  ?

• B63B 39/06 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire réduisant les mouvements du navire par l'effet d'ailerons agissant sur l'eau ambiante

Abrégé

A compressor housing that is configured so as to rotatably accommodate a compressor impeller having a hub and a plurality of blades provided on an outer surface of the hub, said compressor housing being provided with: a shroud part having a shroud surface that curves in a convex shape so as to face the plurality of blades; and at least one injection hole provided in the shroud part for injecting water or a mixed fluid of water and air toward the compressor impeller.

Classes IPC  ?

• F02B 37/11 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen entraînée par un autre moyen uniquement au démarrage
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs

Abrégé

In the present invention, a supercharger comprises: a turbine configured so as to be driven by exhaust gas discharged from an internal combustion engine; an exhaust gas introduction line for guiding the exhaust gas from the internal combustion engine to the turbine; an exhaust gas discharge line for discharging the exhaust gas from the turbine; and a bypass line that branches off from the exhaust gas introduction line and bypasses the turbine to merge with the exhaust gas discharge line. An overspeed prevention device for the supercharger comprises: a safety valve that is disposed in the bypass line and blocks flow of the exhaust gas in the bypass line, and that has a valve body configured so as to be destroyed when the pressure of the exhaust gas guided from the exhaust gas introduction line to the bypass line has exceeded a prescribed pressure; and an opening/closing valve that is disposed in the bypass line and is configured so as to open and close the bypass line.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 21/00 - Arrêt des "machines" ou machines motrices, p. ex. dispositifs d'urgenceDispositifs de régulation, de commande ou de sécurité non prévus ailleurs
• F02B 37/12 - Commande des pompes
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

This fin stabilizer for reducing oscillations of a ship in operation comprises: a fin configured to be disposed projecting from a hull of the ship; a pivoting shaft capable of pivoting the projecting fin about an axis such that the fin is accommodated in the hull; a protrusion which is fixed to the pivoting shaft and which projects from the pivoting shaft toward the outside in a radial direction of the pivoting shaft; and a hook including a restricting portion for restricting the pivoting of the protrusion, the restricting portion having a lower strength than the pivoting shaft and the protrusion.

Classes IPC  ?

• B63B 39/06 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire réduisant les mouvements du navire par l'effet d'ailerons agissant sur l'eau ambiante
• B63B 39/00 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire

Abrégé

A turbocharger gas casing includes a scroll part forming a plurality of scroll passages at a same position in an axial direction of the turbine. The plurality of scroll passages include a first scroll passage. The first scroll passage is configured so that an extension line of a line segment connecting a farthest position from a rotational axis of the turbine at an inlet for an exhaust gas of the first scroll passage and a position of a tip of a tongue part formed on an inner peripheral side of the first scroll passage does not intersect a rotor blade of the turbine in a cross section of the turbine orthogonal to the axial direction.

Classes IPC  ?

• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F01D 1/08 - "Machines" ou machines motrices à déplacement non positif, p. ex. turbines à vapeur avec des moyens stationnaires de guidage de fluide de travail et un rotor à ailettes ou de structure analogue traversées par le fluide de travail principalement dans le sens radial à action centripète

Abrégé

This screw propeller, comprising a propeller hub and at least one propeller blade protruding radially outward from the propeller hub, includes at least one groove portion formed in an outer peripheral surface of the propeller hub on a rear end side of the propeller hub relative to the at least one propeller blade, wherein: the at least one groove extends toward an upstream side in a rotation direction of the propeller hub with increasing distance from a front end toward the rear end; and at the front end of the groove portion there is formed a front-end-side boundary edge that extends in the circumferential direction of the propeller hub through a predetermined circumferential angle, and that partitions the groove portion and the outer peripheral surface that is adjacent to the groove portion on the front-end side of the propeller hub and in which the groove portion is not formed.

Classes IPC  ?

• B63H 1/28 - Autres moyens pour améliorer le rendement des hélices
• B63H 1/20 - MoyeuxFixation des pales

Abrégé

This vibration monitoring device comprises: a rotation sensor that outputs a rotation signal synchronized with the rotation of a rotational axis; an output device that outputs a natural-frequency-filter command value computed from a natural frequency that the rotational axis possesses; and a self-excited-vibration bandpass filter that, upon receiving input of the rotation signal and the natural-frequency-filter command value, extracts from the rotation signal a signal in a passband included in a pass range established according to the natural-frequency-filter command value, as a self-excited vibration signal from which information on the self-excited vibration of the rotational axis can be acquired.

Classes IPC  ?

• G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

A vibration monitoring device includes: a rotation sensor for outputting a rotation signal synchronized with rotation of a rotational shaft; an output device for outputting a filter command value corresponding to a rotation speed of the rotational shaft calculated from the rotation signal; and at least one filter for extracting, in response to input of the rotation signal and the filter command value, a signal in a passband set according to the filter command value from the rotation signal as a vibration signal from which vibration information of the rotational shaft can be obtained.

Classes IPC  ?

• G01M 15/12 - Test des moteurs à combustion interne par contrôle des vibrations
• G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
• G01S 17/08 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement

Abrégé

A bearing device is configured to rotatably support a rotational shaft of a rotating machine and includes: a semi-floating bearing supported by a bearing housing; and an anti-rotation pin fixed to the bearing housing and having an insertion portion inserted from an outer peripheral side into an insertion hole formed on an outer surface of the semi-floating bearing. At least one of the insertion hole or the insertion portion has at least one protrusion that protrudes toward the other of the insertion hole or the insertion portion in a plan view perpendicular to an axis of the rotational shaft.

Classes IPC  ?

• F16C 17/18 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge avec coussinets ou bagues flottants, tournant à vitesse réduite
• F02B 39/14 - Lubrification des pompesMesures de sécurité à cet effet

Abrégé

A turbocharger includes: a bearing; a casing for accommodating the bearing; and a first thermometer including a first temperature sensor for measuring temperature of lubricant oil. The casing includes a lubricant oil discharge part having a lubricant oil outlet for discharging the lubricant oil from the turbocharger. The lubricant oil discharge part includes a lubricant oil storage part for storing the lubricant oil. The first temperature sensor is disposed in the lubricant oil storage part.

Classes IPC  ?

• F01D 25/18 - Systèmes de lubrification

Abrégé

Provided is a supercharge including: an impeller; a scroll casing formed so as to surround the outer circumferential side of the impeller; a bearing casing arranged adjacent to the scroll casing; and coupling part that couples the scroll casing and the bearing casing to each other, the coupling part has a fastening bolt and a fastening bolt, a plurality of through holes are formed spaced apart from each other in the circumferential direction in the bearing casing, the scroll casing and the bearing casing are coupled to each other with a plurality of fastening bolt and a plurality of fastening bolt being inserted in the plurality of through hole, and the fastening bolt has higher tensile strength than the fastening bolt.

Classes IPC  ?

• F01D 25/28 - Dispositions pour le support ou le montage, p. ex. pour les carters de turbines
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations

Abrégé

This vibration monitoring device comprises: a rotation sensor for outputting a rotation signal synchronized to rotation of a rotating shaft; a cut rotation signal generating unit for generating a cut rotation signal when the rotation signal is output from the rotating sensor, by replacing a part of the rotation signal equal to or greater than a predetermined limit value with the limit value, and leaving as the rotation signal, without modification, parts of the rotation signal that are less than the limit value; an offset rotation signal generating unit for generating an offset rotation signal obtained by offsetting the cut rotation signal to approach the limit value; and a first filter for extracting, from within the offset rotation signal, a signal in a passband set on the basis of a rotational speed of the rotating shaft, as a vibration signal enabling vibration information of the rotating shaft to be acquired.

Classes IPC  ?

• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe

Abrégé

This exhaust heat recovery system comprises: an exhaust heat collection device including a high-temperature-side exhaust heat collection unit that collects heat energy of exhaust gas emitted from an internal combustion engine, and a low-temperature-side exhaust heat collection unit that collects heat energy of exhaust gas that has passed through the high-temperature-side exhaust heat collection unit; a water supply line including a first water supply line that guides first supply water to the high-temperature-side exhaust heat collection unit, and a second water supply line that guides second supply water to the low-temperature-side exhaust heat collection unit; a vapor heat exchanger that heats the second supply water with the heat energy of the first supply water vaporized in the high-temperature-side exhaust heat collection unit; and a circulation cycle that circulates a low-boiling-point heat medium, and including an evaporator that vaporizes the low-boiling-point heat medium with the heat energy of the second supply water heated in the low-temperature-side exhaust heat collection unit and/or the vapor heat exchanger, and a turbine that is driven by the low-boiling-point heat medium vaporized in the evaporator.

Classes IPC  ?

• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F02G 5/04 - Utilisation de la chaleur perdue dans les gaz d'échappement en combinaison avec d'autre chaleur perdue par les moteurs à combustion
• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther

Abrégé

Provided is a cryogenic power generation turbine that is disposed in a heat transfer medium circulation line configured so as to circulate a heat transfer medium for heating liquefied gas. The cryogenic power generation turbine comprises: a rotor shaft; an inner casing; an outer casing; a generator that includes a generator rotor and a generator stator; a first stage rotor blade; a first stage stator blade; a second stage stator blade; a second stage rotor blade; and a heat transfer medium flowpath that is defined between the outer peripheral surface of the inner casing and the inner peripheral surface of the outer casing and extends along the axial direction of the rotor shaft from upstream of the first stage stator blade to downstream of the second stage rotor blade.

Classes IPC  ?

• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• F01D 25/00 - Parties constitutives, détails ou accessoires non couverts dans les autres groupes ou d'un intérêt non traité dans ces groupes

Abrégé

An impeller includes: a disk-shaped hub centered on an axis; and a plurality of blades arranged in a circumferential direction and protruding from a surface of the hub facing one side in a direction of the axis. In a cross-sectional view including a blade height direction which is a direction away from the hub toward a tip of each blade, the blade has a recessed surface curved convexly toward a rear side in a rotational direction. In the cross-sectional view, when a distance between an imaginary line connecting a tip-side edge and a hub-side edge of the blade and a midspan of the blade along a direction perpendicular to the imaginary line is defined as a recess amount, the blade has a portion where the recess amount increases from a leading edge side to a trailing edge side.

Classes IPC  ?

• F04D 29/30 - Aubes
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F01D 5/14 - Forme ou structure
• F01D 5/04 - Organes de support des aubes, p. ex. rotors pour "machines" ou machines à flux radial

Abrégé

Provided is a power recovery system for recovering the cryogenic energy of liquefied gas as power via a working fluid for heating the liquefied gas, wherein the power recovery system comprises a compressor, a gas-liquid separation tank, a cryogenic pump, an evaporator, a cryogenic turbine, and a first duct that is for supplying working fluid compressed by the compressor to the gas-liquid separation tank and has an outlet positioned lower than the liquid level of the gas-liquid separation tank.

Classes IPC  ?

• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther

Abrégé

This cold recovery system comprises: a first heat exchanger that transfers cold thermal energy from a liquefied gas to a heat medium for cold; a cold recovery cycle that includes a pump for cold provided on the downstream side of the first heat exchanger; a second heat exchanger that transmits thermal energy from a heat medium to the heat medium for cold flowing between the pump for cold and the first heat exchanger; a gas/liquid separator that is provided between the first heat exchanger and the pump for cold, and separates the heat medium for cold into a gas phase and a liquid phase; a liquid return line that is for returning the liquid-phase heat medium for cold to the gas/liquid separator from between the pump for cold and the second heat exchanger; and a third heat exchanger that transmits the cold thermal energy of the liquefied gas to the liquid-phase heat medium for cold which is returned to the gas/liquid separator via the liquid return line, or to the heat medium for cold which is present in the interior of the gas-liquid phase separator.

Classes IPC  ?

• F25B 27/00 - Machines, installations ou systèmes utilisant des sources d'énergie particulières
• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F01D 25/32 - Recueil de l'eau de condensationDrainage
• F01K 9/00 - Ensembles fonctionnels de machines à vapeur caractérisés par des condenseurs disposés ou modifiés de façon à s'adapter aux machines motrices
• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
• F28F 27/00 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur

Abrégé

Provided is an exhaust turbine (100) comprising: introduction piping (10) that forms a first introduction flow path (11) for circulating an exhaust gas along an axial line (X1); a casing part (20) that is connected to the introduction piping (10) and forms a vortex-shaped first swirl flow path (21) for circulating the exhaust gas; a turbine part (30) that is rotationally driven about an axial line (Z) by the exhaust gas guided by the first swirl flow path (21); and a nozzle part (40) having a plurality of nozzle blades (41) arranged along the circumferential direction about the axial line (Z), wherein the introduction piping (10) has a first input part (14a) that inputs, to the first introduction flow path (11), a solid cleaning agent containing a solid having a predetermined particle diameter along a first direction (Dr1) intersecting an axial line direction in which the axial line (X1) extends, and the first direction (Dr1) is set such that the solid cleaning agent input to the first introduction flow path (11) is guided to the nozzle part (40) without making contact with an inner wall of the casing part (20).

Classes IPC  ?

• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci

Abrégé

This supercharger gas casing is provided with a scroll part in which a plurality of scroll flow paths are formed at the same positions in the axial direction of a turbine. The plurality of scroll flow paths include a first scroll flow path. The first scroll flow path is configured such that, in a cross section orthogonal to the axial direction of the turbine, an extension line of a line segment connecting the farthest position from the rotation axis of the turbine in an exhaust gas inlet port of the first scroll flow path and the position of a tip of a tongue part formed on the inner circumferential side of the first scroll flow path does not intersect with blades of the turbine.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F01D 1/08 - "Machines" ou machines motrices à déplacement non positif, p. ex. turbines à vapeur avec des moyens stationnaires de guidage de fluide de travail et un rotor à ailettes ou de structure analogue traversées par le fluide de travail principalement dans le sens radial à action centripète
• F01D 9/06 - Conduits d'admission du fluide à l'injecteur ou à l'organe analogue
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations

Abrégé

This method for evaluating the remaining service life of a compressor impeller, which involves evaluating the remaining service life of a compressor impeller provided to a supercharger, comprises: a rotation speed acquisition step for acquiring the rotation speed of the supercharger; a stress calculation step for calculating the stress generated in the compressor impeller from the rotation speed of the supercharger as acquired in the rotation speed acquisition step; an outlet temperature acquisition step for acquiring the outlet temperature of the compressor impeller; a metal temperature calculation step for calculating the metal temperature of the compressor impeller from the outlet temperature of the compressor impeller as acquired in the outlet temperature acquisition step; and a remaining service life evaluation step for evaluating the remaining service life of the compressor impeller from the stress calculated in the stress calculation step and the metal temperature calculated in the metal temperature calculation step by using a relationship between the stress, metal temperature, and service life of the compressor impeller that is acquired in advance.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci

Abrégé

Provided is a supercharger including: a rotor that includes a compressor impeller; a bearing that supports the rotor in a rotatable manner; and a bearing base that accommodates the bearing. The bearing base has: a cooling space that is formed on a back side of the compressor impeller; a bearing accommodation space that accommodates the bearing; a lubricating-oil flow path that allows the cooling space and the bearing accommodation space to communicate with each other, in order to supply lubricating oil from the cooling space to the bearing accommodation space; and a lubricating-oil supply port that is formed in an outer surface of the bearing base and that communicates with the cooling space. The supercharger further includes a lubricating-oil supply line that is configured to supply the lubricating oil from the outside of the supercharger to the cooling space via the lubricating-oil supply port.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

Provided is a compressor casing for storing a compressor impeller of a supercharger, the compressor casing having a plurality of ejection holes for ejecting compressed gas toward a negative pressure surface of an impeller blade of the compressor impeller. The plurality of ejection holes include at least one first ejection hole, and at least one second ejection hole having an exit at a location different from an exit of the first ejection hole in an axial direction of the compressor impeller.

Classes IPC  ?

• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs

Abrégé

This supercharger abnormality sign determination device for determining a sign of an abnormality state of a supercharger, is provided with: a load parameter acquisition unit that acquires time-series data of a load parameter of an engine; a supercharger rotation speed acquisition unit that acquires time-series data of the rotation speed of the supercharger; a reference value generation unit that generates a reference value of a temporal change rate of the rotation speed of the supercharger, on the basis of the time-series data of the load parameter and engine-supercharger correlation information indicating a correlation between the load parameter and the rotation speed of the supercharger; a rotation speed temporal change rate calculation unit that calculates time-series data of the temporal change rate of the rotation speed of the supercharger; and an abnormality sign determination unit that determines a sign of the abnormality state of the supercharger, on the basis of the reference value and the time-series data of the temporal change rate of the rotation speed of the supercharger.

Classes IPC  ?

• F02D 23/00 - Commande des moteurs caractérisés par le fait d'être suralimentés
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 37/16 - Commande des pompes par dérivation de l'air de suralimentation
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci
• F02D 45/00 - Commande électrique non prévue dans les groupes

Abrégé

A supercharger abnormality determination device (24) for determining an abnormal state of a supercharger, the supercharger abnormality determination device comprising: a supercharger rotational speed acquisition unit (28) configured to acquire time series data on the rotational speed of the supercharger in a state in which an engine load is within a certain range; a rotational speed temporal change rate calculation unit (30) for calculating, on the basis of the time series data on the rotational speed of the supercharger acquired by the supercharger rotational speed acquisition unit, time series data on a temporal change rate of the rotational speed of the supercharger; and an abnormality determination unit (40) configured to determine occurrence of an abnormality inside the supercharger if the time series data on the temporal change rate of the rotational speed of the supercharger calculated by the rotational speed temporal change rate calculation unit includes a predetermined number of times or more of switching of positive and negative values within a first unit time.

Classes IPC  ?

• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci
• F02D 43/00 - Commande électrique simultanée de plusieurs fonctions, p. ex. allumage, mélange air-combustible, recirculation, suralimentation ou traitement des gaz d'échappement
• F02D 45/00 - Commande électrique non prévue dans les groupes

Abrégé

A cold heat recovery system is provided with: a first heat exchanger configured to vaporize a liquefied gas; a liquefied gas supply line for supplying liquefied gas from a liquefied gas reservoir device to the first heat exchanger; a cold heat recovery cycle configured so as to circulate a heat medium for cold heat that has undergone heat exchange with liquefied gas in the first heat exchanger, the cold heat recovery cycle including a cold heat turbine configured to be driven by the heat medium for cold heat; and, a second heat exchanger configured to exchange heat between the heat medium for cold heat flowing between the cold heat turbine and the first heat exchanger in the cold heat recovery cycle and external water introduced from outside the cold heat recovery system.

Classes IPC  ?

• F17C 9/04 - Récupération de l'énergie thermique
• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
• B63J 2/14 - ChauffageRéfrigération des soutes à cargaison liquide

Abrégé

A bearing device configured to rotatably support a rotating shaft of a rotating machine, comprising: a semifloating bearing supported by a bearing housing; and a detent pin that is fixed to the bearing housing, and that has an insertion part that is inserted into an insertion hole formed in an outer side-surface of the semifloating bearing from an outer circumferential side thereof. At least one of the insertion hole or the insertion part has at least one protrusion portion that protrudes toward the other of the insertion hole or the insertion part as viewed in a direction intersecting an axis of the rotating shaft.

Classes IPC  ?

• F16C 17/18 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge avec coussinets ou bagues flottants, tournant à vitesse réduite
• F16C 27/00 - Paliers ou supports de paliers élastiques ou extensibles pour mouvement de rotation exclusivement
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

This vibration monitoring device comprises: a rotation sensor that outputs a rotation signal synchronized with the rotation of a rotary shaft; an output device that outputs a filter command value corresponding to the rotation speed of the rotary shaft calculated from the rotation signal; and at least one filter that, upon receiving input of the rotation signal and the filter command value, extracts from the rotation signal a signal of a passband set in accordance with the filter command value as a vibration signal from which vibration information of the rotary shaft can be acquired.

Classes IPC  ?

• G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

A burner system provided with a main burner to which a fuel gas containing an inert gas is supplied, and a pilot burner for stabilizing the flame of the main burner. The burner system is provided with: a first analysis unit configured to analyze the fuel gas supplied to the main burner and acquire information that pertains to a component of the fuel gas; and, a flow regulator configured to regulate, on the basis of the information that pertains to the component of the fuel gas, the flow rate of a fuel gas and air supplied to the pilot burner.

Classes IPC  ?

• F23N 5/00 - Systèmes de commande de la combustion
• F23D 14/26 - Brûleurs pour la combustion d'un gaz, p. ex. d'un gaz stocké sous pression à l'état liquide avec dispositifs pour retenir la flamme
• F23N 1/02 - Régulation de l'alimentation en combustible conjointement au réglage de l'amenée d'air

Abrégé

b).

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F16C 17/10 - Paliers à contact lisse pour mouvement de rotation exclusivement à la fois pour charges radiales et axiales
• F16C 23/04 - Paliers à contact lisse à autoréglage

Abrégé

Provided is a supercharger comprising a shaft bearing, a casing that contains the shaft bearing, and a first temperature meter that includes a first temperature sensor for measuring the temperature of a lubricating oil, wherein: the casing includes a lubricating oil discharge part in which is formed a lubricating oil discharge port for discharging the lubricating oil from the supercharger; the lubricating oil discharge part includes a lubricating oil storage part for holding the lubricating oil; and the first temperature sensor is disposed inside the lubricating oil storage part.

Classes IPC  ?

• F02B 39/14 - Lubrification des pompesMesures de sécurité à cet effet
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

Provided is a supercharger (100) comprising an impeller, a scroll casing formed to surround the outer circumferential side of the impeller, a bearing casing (20) located adjacent to the scroll casing, and a connection part (40) which connects the scroll casing and the bearing casing (20), wherein: the connection part (40) has fastening bolts (41) and fastening bolts (42); a plurality of through-holes (21) are formed at intervals in a circumferential direction (CD) in the bearing casing (20); the scroll casing and the bearing casing (20) are connected to each other in a state in which the plurality of fastening bolts (41) and the plurality of fastening bolts (42) are inserted into the plurality of through-holes (21); and the fastening bolts (41) have higher tensile strength than the fastening bolts (42).

Classes IPC  ?

• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F04D 29/056 - Paliers

Abrégé

This cold heat recovery system, installed in a ship or a floating body having a liquefied gas storage device configured to store liquefied gas, is provided with a cold heat recovery cycle including a cold heat turbine configured to be driven by means of the cold energy of the liquefied gas, and an air conditioning cycle including an air conditioning evaporator configured to cool air by means of the cold energy of a cold-heat heat transfer medium which flows through the cold heat recovery cycle, wherein the cold heat recovery cycle and the air conditioning cycle share a heat exchanger configured to exchange heat between the cold-heat heat transfer medium flowing through the cold heat recovery cycle and an air conditioning heat transfer medium flowing through the air conditioning cycle.

Classes IPC  ?

• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther
• F01K 17/04 - Utilisation de la vapeur ou des condensats provenant soit du soutirage, soit de la sortie des ensembles fonctionnels de machines motrices à vapeur pour des buts définis autres que le chauffage

Abrégé

This motive power recovery system for recovering motive power from liquefied gas supplied from a liquefied gas storage device which stores the liquefied gas is provided with: a first turbine which is driven by means of gas obtained by vaporizing the liquefied gas supplied from the liquefied gas storage device; a first leakage gas introduction pipe for guiding gas that has leaked from a shaft sealing portion of the first turbine; and a gas combustion device for burning the gas guided by the first leakage gas introduction pipe.

Classes IPC  ?

• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther
• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63B 35/00 - Embarcations ou structures flottantes similaires spécialement adaptées à des finalités spécifiques et non prévues ailleurs
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p. ex. lubrifiants, réfrigérants, carburants ou analogues
• F16J 15/447 - Garnitures à labyrinthe

Abrégé

A turbine for cryogenic power generation, said turbine comprising: a rotor shaft; a casing that houses the rotor shaft; a plurality of moving blades that are provided around the rotor shaft, and include a first moving blade and a second moving blade that is provided downstream of the first moving blade; a plurality of stationary blades that are supported by the inner side of the casing, and include a first stationary blade that is provided upstream of the first moving blade and a second stationary blade that is provided downstream of the first moving blade and upstream of the second moving blade; a heat transfer medium introduction line for introducing a heat transfer medium to the first stationary blade; and a joining line that branches from the heat transfer medium introduction line, bypasses the first stationary blade and the first moving blade, and introduces the heat transfer medium to the second stationary blade.

Classes IPC  ?

• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther

Abrégé

A turbine for cryogenic power generation that is provided to a heat transfer medium circulation line configured so as to circulate a heat transfer medium for heating liquefied gas, said turbine comprising: a rotor shaft; a casing that houses the rotor shaft; at least one moving blade that is provided around the rotor shaft; at least one stationary blade that is supported by the casing; a mechanical seal that seals between the rotor shaft and the casing upstream of the at least one moving blade; and a pressure-reducing line that has one side thereof connected to a sealed space, which is formed inside the casing as a result of placement of the mechanical seal and into which the heat transfer medium seeping from between the at least one moving blade and the at least one stationary blade can flow, and another side thereof connected to a low-pressure part having a lower pressure therein than the sealed space in the heat transfer medium circulation line.

Classes IPC  ?

• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther
• F01D 11/02 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages par obturation non contact, p. ex. du type labyrinthe

Abrégé

A turbine for cryogenic power generation, said turbine comprising: a rotor shaft; a casing that houses the rotor shaft so as to be rotatable; a driven body that includes a supported part supported by the rotor shaft; a one-side moving blade that is provided further toward one side in the axial direction of the rotor shaft than the supported part; an other-side moving blade that is provided further toward the other side in the axial direction of the rotor shaft than the supported part; a one-side stationary blade that is supported by the casing further toward the one side than the one-side moving blade; and an other-side stationary blade that is supported by the casing further toward the other side than the other-side moving blade.

Classes IPC  ?

• F01D 3/00 - "Machines" ou machines motrices avec équilibrage des poussées axiales effectué par le fluide énergétique
• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther

Abrégé

This turbine housing comprises an inlet-side casing including a scroll part having therein a scroll flow passage, an outlet-side casing fastened to the inlet-side casing, and a flow passage forming member which includes a flow passage wall surface for demarcating an exhaust gas flow passage that guides exhaust gas from the scroll flow passage to a turbine wheel and which is fastened to the outlet-side casing. The outlet-side casing includes a cylindrical part that has therein an outlet flow passage through which flows the exhaust gas having passed the turbine wheel; a flange part that protrudes to a radial outside from the downstream-side end section of the cylindrical part and is fastened to the scroll part by a first fastening member; and an annular plate part that protrudes to a radial outside from the upstream-side end section of the cylindrical part and is fastened to the flow passage forming member by a second fastening member, wherein the annular plate part has at least one recess section recessed from an outer peripheral end to a radial inside.

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations

Abrégé

A centrifugal compressor includes an impeller, a plurality of diffuser vanes arranged in a circumferential direction on a radially outer side of the impeller, and a housing which includes a scroll portion forming a scroll flow passage positioned on a radially outer side of the plurality of diffuser vanes. The plurality of diffuser vanes include at least one first diffuser vane positioned in an angular range between a tongue section of the scroll portion and a scroll end of the scroll portion in the circumferential direction, and a second diffuser vane positioned outside the angular range. A vane outlet angle formed by a tangent line at a trailing edge to a pressure surface of each of the plurality of diffuser vanes satisfies β1<β2, where β1 is the vane outlet angle of the first diffuser vane, and β2 is the vane outlet angle of the second diffuser vane.

Classes IPC  ?

• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges

Abrégé

A turbocharger includes a rotor shaft that is rotationally driven, a compressor impeller attached to the rotor shaft, and a cylindrical bearing portion that includes an inner cylinder and an outer cylinder, and that supports the rotor shaft in a rotatable manner. A first damping portion is provided between an axial first end portion of the inner cylinder and an axial first end portion of the outer cylinder, and an axial second end portion of the inner cylinder is connected with an axial second end portion of the outer cylinder. A second damping portion is provided between a housing and the axial second end portion. The housing and the bearing portion are fixed by a flange portion provided at the first end portion of the outer cylinder in such a manner as to restrict movement of the flange portion in a radial direction and in an axial direction.

Classes IPC  ?

• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 27/02 - Paliers à contact lisse
• F02B 39/14 - Lubrification des pompesMesures de sécurité à cet effet

Abrégé

This impeller is provided with a discoidal hub centered on the axis, and a plurality of blades jutting from a surface facing one axial-directed side of the hub and arrayed circumferentially. The blades, in a cross-sectional view along a direction separating away from the hub toward the tip side and including a vane height direction, are each formed with a concave surface that curves so as to be convex toward the rear side in the direction of rotation, and when, in the cross-sectional view, the distance along a direction orthogonal to a virtual line between a virtual line joining the edge on the tip side of the blade and the edge on the hub side thereof and the midspan of the blade is defined as the concavity amount, then the blades have an area where the concavity amount increases stretching from the leading-edge side to the trailing-edge side.

Classes IPC  ?

• F04D 29/30 - Aubes
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges

Abrégé

Provided are: a turbine exhaust chamber that can reduce a reverse flow of a fluid along a bearing cone; and a turbine. The turbine exhaust chamber (20) comprises: a casing (30); and a bearing cone (40) that is provided inside the casing (30), defines, together with the casing (30), an exhaust path (21) through which steam that has passed through a turbine rotor blade (12) flows, and has the outer peripheral surface, the radius of which gradually increases toward the downstream side in the steam flow direction, wherein a recessed groove (50) recessed radially inward is formed in the circumferential direction in an exhaust path (21)-side surface of the bearing cone (40).

Classes IPC  ?

• F01D 25/30 - Têtes d'évacuation, chambres ou parties analogues

Abrégé

A bearing device includes: a bearing housing; a floating metal having a cylindrical shape and disposed in a housing hole of the bearing housing and in which a rotational shaft is inserted; and a positioning pin for positioning the floating metal with respect to the bearing housing, the positioning pin being disposed along a radial direction of the rotational shaft. The positioning pin includes a first oil supply hole formed so as to penetrate the positioning pin and communicating with a first space between an inner peripheral surface of the floating metal and an outer peripheral surface of the rotational shaft, and a second oil supply hole formed inside the positioning pin so as to connect a second space to the first oil supply hole, the second space being disposed between an outer peripheral surface of the floating metal and an inner peripheral surface of the housing hole.

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F01D 25/18 - Systèmes de lubrification

Abrégé

A turbocharger (1A) includes a rotary shaft (2), a journal hearing (5A), and a bearing housing (10). The journal hearing (5A) includes load support surfaces (14 and 15), a first gap forming portion (F1), and a second gap forming portion (F2). The first gap forming portion (F1) firms a first gap (101) in a radial direction between the load support surfaces (14 and 15) adjacent to each other in a direction of a central axis (O). The second gap forming portion (F2) forms a second gap (102) smaller than the first gap in the radial direction between the load support surfaces (14 and 15) adjacent to each other in the direction of the central axis (O).

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F01D 25/18 - Systèmes de lubrification
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

This cold recovery system is installed in a ship having a liquefied gas storage device that stores a liquid liquefied gas, the system comprising: a working fluid circulation line that causes a working fluid having a lower freezing point than water to circulate therethrough; a cold recovery device that includes a turbine driven by the working fluid; a first heat exchanger that exchanges heat between the liquefied gas and the working fluid; an intermediate heat medium circulation line that causes an intermediate heat medium having a lower freezing point than water to circulate therethrough; a second heat exchanger that is provided on the downstream side of the working fluid circulation line with respect to the first heat exchanger, and exchanges heat between the working fluid and the intermediate heat medium; and a third heat exchanger that exchanges heat between the intermediate heat medium and heated water introduced from the outside of the cold recovery system.

Classes IPC  ?

• B63B 25/08 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides
• B63J 2/14 - ChauffageRéfrigération des soutes à cargaison liquide
• B63J 3/04 - Entraînement des auxiliaires par l'ensemble moteur autre que celui de la propulsion
• F17C 9/04 - Récupération de l'énergie thermique
• F17C 13/10 - Dispositions contre le gel
• F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
• F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p. ex. lubrifiants, réfrigérants, carburants ou analogues

Abrégé

The purpose of the present invention is to provide a power supply system, a marine vessel, a control method, and a control program that enable generation of power by efficiently using an internal combustion engine. In a marine vessel (1), a power supply system (10) is provided with: a storage battery (11) that is connected to a line (3); a diesel generator (12) that is connected to the line (3) and that generates power by using an internal combustion engine; and a control device (15) that sets, in accordance with a charge amount of the storage battery (11), a maximum permissible load which is the upper limit value of an output of the diesel generator (12).

Classes IPC  ?

• B63J 3/04 - Entraînement des auxiliaires par l'ensemble moteur autre que celui de la propulsion
• B63J 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs

Abrégé

This floating type equipment is provided with: a floating body; a liquid natural gas (LNG) tank provided on the floating body; a first heat exchanger for obtaining regasified LNG by gasifying a LNG from the LNG tank by means of heat exchange with a heat medium; and an expansion turbine satisfying following condition (A) or (B). (A) Configured to be driven by the regasified LNG from the first heat exchanger. (B) Configured to be driven by the heat medium in a gaseous state by forming a portion of a thermodynamic cycle using, as a low-temperature heat source, the LNG in the first heat exchanger.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F02B 43/00 - Moteurs caractérisés par leur fonctionnement avec des combustibles gazeuxEnsembles fonctionnels comportant de tels moteurs
• F17C 9/04 - Récupération de l'énergie thermique
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• F02M 31/16 - Autres appareils pour chauffer le combustible
• F02M 37/00 - Appareils ou systèmes pour transférer le combustible liquide des réservoirs de stockage aux carburateurs ou aux injecteursDispositions d'épuration du combustible liquide spécialement conçues pour les moteurs à combustion interne ou aménagées sur ceux-ci
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p. ex. lubrifiants, réfrigérants, carburants ou analogues

Abrégé

Provided is a liquefied gas vaporization device which is unlikely to freeze in a vaporizer and an has excellent energy saving effect. The liquefied gas vaporizer comprises: a steam turbine (32) to which steam is introduced, the steam being generated by an exhaust gas economizer (14) to which exhaust gas of a diesel engine (5) is introduced; a condenser (36) that condenses the steam discharged from the steam turbine (32); a vaporizer (25) that vaporizes LNG by heating the LNG; and a glycol circulation path (38) which is connected to the vaporizer (25) and through which glycol circulates. The condenser (36) and the glycol circulation path (38) are thermally connected to each other to supply heat to the glycol circulating from the condenser (36) through the glycol circulation path (38).

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p. ex. vaporisation
• F17C 13/10 - Dispositions contre le gel

Abrégé

A boil-off gas treatment system (4) is provided with: a boiler (15) that is capable of burning boil-off gas produced in a tank (3) storing LNG and generates steam; a re-liquefaction device (13) for performing liquefaction of the boil-off gas produced in the tank (3); a gas-liquid separator (14) for separating the boil-off gas in a gas-liquid mixed state after the liquefaction in the re-liquefaction device (13) into a gaseous phase and a liquid phase; a flow path for guiding the gaseous-phase boil-off gas separated by the gas-liquid separator (14) to a main engine (2); a flow path for guiding the gaseous phase boil-off gas separated by the gas-liquid separator (14) to the boiler (15); and a first valve (19a), a second valve (33a) and a third valve (36a) for switching the guiding of the gaseous-phase boil-off gas separated by the gas-liquid separator (14) to the main engine (2) or the boiler (15).

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 13/00 - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

Provided is a liquefied gas vaporization device which can condense steam generated during a boil-off gas incineration process without increasing the initial investment. The liquefied gas vaporizer comprises: a vaporizer (25) that vaporizes LNG by heating the LNG; a glycol circulation path (38) which is connected to the vaporizer (25) and through which glycol circulates; a gas boiler (30) that generates steam by combusting BOG generated in an LNG tank (3); a steam heat exchanger (60) that exchanges heat between the steam generated by the gas boiler (30) and the glycol circulating through the glycol circulation path (38); and a control unit that performs a control in a GCU mode in which the BOG generated in the LNG tank (3) is incinerated by the gas boiler (30) without heating the LNG in the vaporizer (25), wherein in the GCU mode, the control unit causes the steam generated by the gas boiler (30) to be delivered to the steam heat exchanger (60).

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p. ex. vaporisation
• F17C 13/00 - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

Provided is a journal bearing structure (100) provided with: a journal bearing (21) that supports a rotary shaft by an inner circumferential surface (21a) thereof; and a bearing housing (15C) that holds an outer circumferential surface (21b) of the journal bearing (21) by the inner circumferential surface (21a). The journal bearing (21) has an oil supply hole (21c) that makes the inner circumferential surface (21a) and the outer circumferential surface (21b) communicate. The bearing housing (15C) has an oil supply hole (15b) opened toward the inner circumferential surface (15a) thereof, and an oil supply groove (15c) that extends in the circumferential direction around an axis line (X) and guides a lubricating oil discharged from the oil supply hole (15b) to the oil supply hole (21c) is formed in the inner circumferential surface (15a) of the bearing housing (15C).

Classes IPC  ?

• F02B 39/14 - Lubrification des pompesMesures de sécurité à cet effet
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 33/10 - Structures relatives à la lubrification

Abrégé

A control device 40 of a ship provided with stowable fin stabilizers on both sides. The control device acquires attitude information from an information measurement device 30 for measuring attitude information of the ship, the attitude information being one of the fin operating angle of the fin stabilizers and the speed of the ship, and performs a control so that a fin of one of the fin stabilizers is stowed when the fin stabilizers on both sides are operating and the attitude information is determined to be smaller than a first prescribed value, and the fins of the fin stabilizers on both sides are stowed when one of the fin stabilizers is operating and the attitude information is determined to be smaller than a second prescribed value.

Classes IPC  ?

• B63B 39/06 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire réduisant les mouvements du navire par l'effet d'ailerons agissant sur l'eau ambiante

Abrégé

Provided is a boiler such that even if a large-capacity main burner is operating and a small-capacity sub-burner is not operating, it is possible to cool the sub-burner. The boiler comprises: a combustion vessel (11) that forms a combustion chamber (24); a main burner that is disposed in the combustion vessel (11); a sub-burner (13) that is disposed in the combustion vessel (11), disposed downstream of the flame formed by the main burner, and has a smaller capacity than the main burner; a sub-burner wind box (40) that accommodates the sub-burner (13) and is attached to the combustion vessel (11); a sub-burner air fan (44) that supplies air to the sub-burner wind box (40); and a control unit that controls the sub-burner air fan (44). The control unit controls the sub-burner air fan (44) so that the pressure in the sub-burner wind box (40) becomes higher than the pressure in the combustion vessel (11), when the main burner is operating and the sub burner (13) is not operating.

Classes IPC  ?

• F22B 31/00 - Modifications de la structure de la chaudière ou des systèmes de tubes, dépendant de l'installation d'un appareil à combustionAménagements ou dispositions des appareils à combustion
• F23D 14/78 - Refroidissement des éléments du brûleur

Abrégé

The purpose of the present invention is to provide a supercharger casing that can be applied to a small supercharger of which the layout is restricted and that is provided with a bypass pipe having a simple structure, and a supercharger provided with said casing. A casing (10) of a supercharger (1) has formed therein an exhaust gas flow path (12) through which exhaust gas discharged from an internal combustion engine flows, and accommodates therein a turbine (30) driven by the exhaust gas flowing through the exhaust gas flow path (12). The casing (10) is provided with a bypass pipe (50) that allows communication between the exhaust gas flow path (12) on the side of an exhaust gas inlet (12A) and the exhaust gas flow path (12) on the side of an exhaust gas outlet (12B), the communication not being by way of the turbine (30). The bypass pipe (50) is configured from a straight pipe (52) that is connected to the exhaust gas inlet (12A) side and that has a straight linear flow path, and an elbow pipe (54) that is connected to the straight pipe (52) and the exhaust gas outlet (12B) side and that has a bent flow path.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

Provided is a bearing structure in which a rotary shaft can be supported with a small number of components. The present invention is provided with: a cylindrical sleeve (32) that is provided so as to surround the outer circumference of a rotary shaft (4) rotating around a center axis line (CL) and rotates along with the rotary shaft (4); thrust collars (34a, 34b) that are provided so as to respectively abut both ends of the cylindrical sleeve (32) in the center axis line (CL) of the cylindrical sleeve (32), have diameters larger than the cylindrical sleeve (32), and rotate along with the rotary shaft (4); and a compressor-side journal bearing (12) that is arranged on the outer circumferential side of the cylindrical sleeve (32) and between the thrust collars (34a, 34b).

Classes IPC  ?

• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F02B 39/14 - Lubrification des pompesMesures de sécurité à cet effet
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 17/04 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges axiales uniquement
• F16C 23/04 - Paliers à contact lisse à autoréglage

Abrégé

The objective of the present invention is to provide a waste heat recovery device and a method for controlling the same with which it is possible to detect leakage of a refrigerant relatively rapidly, even if the refrigerant has leaked from a refrigerant circuit. A waste heat recovery device (1) is provided with: a refrigerant circuit (10) including a condenser (14) which causes refrigerant that has passed through a turbine (13) rotated by means of refrigerant vaporized by means of an evaporator (12) to condense by means of heat exchange with cooling water; a cooling water pipe (52) through which the cooling water that has passed through the condenser (14) passes; and a leakage detector (30) which is provided in the cooling water pipe (52) to detect refrigerant contained in cooling water that has passed through the cooling water pipe (52).

Classes IPC  ?

• F02G 5/00 - Utilisation non prévue ailleurs de la chaleur perdue par les moteurs à combustion
• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
• F25B 27/02 - Machines, installations ou systèmes utilisant des sources d'énergie particulières utilisant la chaleur perdue, p. ex. chaleur dégagée par des moteurs à combustion interne
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

The purpose of the present invention is to provide a marine power supply system which comprises a diesel generator, an Organic Rankine Cycle system, and a secondary battery and runs the diesel generator under high load and to provide a vessel equipped with the marine power supply system, a marine power supply system control method, and a marine power supply system control program. Provided is a marine power supply system (1) having a control device (9) which performs control for combining a diesel generator (10), an ORC system (2), and a secondary battery (20) in order to meet onboard power demand, wherein the diesel generator (10) has a load factor in the range of 60-90% with respect to the average onboard power demand, the control device (9) performs control so that the secondary battery (20) is charged with surplus power if the onboard power demand does not exceed the total output of the diesel generator (10) and the ORC system (2) and performs control so that the power stored in the secondary battery (20) is discharged if the onboard power demand exceeds the total output of the diesel generator (10) and the ORC system (2).

Classes IPC  ?

• B63J 3/04 - Entraînement des auxiliaires par l'ensemble moteur autre que celui de la propulsion
• B63J 3/02 - Entraînement des auxiliaires par l'ensemble moteur de propulsion
• B63J 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

This waste heat recovery system includes: a combustion device capable of using two or more types of fuels by switching therebetween; an exhaust gas line through which exhaust gas from the combustion device flows; a vessel for storing saturated water and steam; a water supply line for supplying water to the vessel; a saturated steam line through which the saturated steam from the vessel flows; a heat exchanger that is provided in the exhaust gas line and is for heating the water in the water supply line by performing heat exchange between the water and the exhaust gas; a valve that is provided in the saturated steam line and is for adjusting the pressure in the vessel; and a control unit that is configured to adjust, upon receiving a signal indicating that the fuel supplied to the combustion device has been switched, the valve aperture on the basis of the signal to change the pressure in the vessel. The control unit is configured to adjust the valve aperture so that the pressure in the vessel is a second pressure when the fuel is a second fuel and a first pressure lower than the second pressure when the fuel is a first fuel having a lower sulfur concentration than the second fuel.

Classes IPC  ?

• F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
• F22B 37/26 - Dispositifs séparateurs de vapeur
• F22D 1/02 - Appareils de chauffage d'eau d'alimentation, p. ex. préchauffeurs avec tubes d'eau disposés dans le foyer de la chaudière, les tubes de fumées ou sur le trajet des fumées
• F22D 1/12 - Dispositifs de commande, p. ex. pour réguler la température de la vapeur

Abrégé

A contact vibration detection device 100 for detecting contact vibration due to contact between a rotational shaft 12 and a stationary part 13 includes: a rotation waveform determination unit 101 configured to determine a rotation waveform of the rotational shaft 12 based on displacement of the rotational shaft 12 during rotation; a parameter change detection unit 102 configured to detect a change in a parameter of at least one of an effective value of the rotation waveform or a phase angle of the rotation waveform; and a contact vibration determination unit 103 configured to determine whether the contact vibration occurs based on presence or absence of the change in the parameter.

Classes IPC  ?

• G01M 1/22 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation et en convertissant les vibrations dues au balourd en variables électriques

Abrégé

An turbocharger with an electric motor (30) includes a housing (33), stator (32), and motor rotor. The housing (33) has first stator fixing section (131) and a second stator fixing section (132) formed in an inner peripheral surface of the housing (33) that fixes the stator (32) in the housing. The stator (32) has a first fixed section (121) formed in an outer peripheral surface of the stator (32) fitted to the first stator fixing section (131) and a second fixed section (122) that has a smaller outer diameter than the first fixed section (121) fitted to the second stator fixing section (132) in an outer peripheral surface of the stator (32). A large clearance section having a space is formed between the inner peripheral surface of the housing and the outer peripheral surface of the stator. The instant invention allows precise positioning of the stator and improved heat conduction.

Classes IPC  ?

• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 25/02 - Ensembles comprenant des pompes et leurs moyens d'entraînement
• H02K 5/173 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p. ex. des roulements à billes

Abrégé

A compressor-impeller fixing nut has a tubular shape, and includes: a curved-surface shaped portion disposed in a first range from a first end side in an axial direction, the curved-surface shaped portion having an outer diameter which increases toward a second end side in the axial direction and including an outer peripheral surface having a curved shape which protrudes outward in a radial direction in a cross section along the axial direction; and a nut portion disposed in a second range closer to the second end side from the first range in the axial direction, the nut portion having an outer peripheral surface with a nut shape. An expression (D1max−D1min)/2

Classes IPC  ?

• F04D 29/26 - Rotors spécialement adaptés aux fluides compressibles
• F16B 37/00 - Écrous ou pièces similaires avec entrées de filetage
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F04D 29/053 - Arbres
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F16D 1/08 - Accouplements pour établir une liaison rigide entre deux arbres coaxiaux ou d'autres éléments mobiles d'une machine pour montage d'un organe sur un arbre ou à l'extrémité d'un arbre avec moyeu de serrageAccouplements pour établir une liaison rigide entre deux arbres coaxiaux ou d'autres éléments mobiles d'une machine pour montage d'un organe sur un arbre ou à l'extrémité d'un arbre avec moyeu et clavette longitudinale

Abrégé

An electric motor support mechanism having a cylindrical member that is attached to the end part of the intake opening side of an air inlet guide, and is formed in a cylindrical shape around an axis line extending along a rotation shaft, a plurality of struts connected to multiple locations on the inner circumferential surface of the cylindrical member, the plurality of struts extending in the radial direction from the inner circumferential surface toward the axis line, and connecting members that connect pairs of struts disposed adjacently in the circumferential direction around the axis line. The end parts of the plurality of struts on the axis-line side in the radial direction are connected in multiple locations on the outer circumferential surface of the electric motor, whereby the electric motor is supported on the axis line.

Classes IPC  ?

• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
• H02K 5/00 - EnveloppesEnceintesSupports
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• H02K 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations
• H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur

Abrégé

A noise reduction structure includes a compressor discharge-side pipe portion, a first porous plate having a plurality of through holes and extending circumferentially along an inner circumferential surface of the compressor discharge-side pipe portion so that an air layer is formed between the first porous plate and the inner circumferential surface, a partition dividing an interior of the compressor discharge-side pipe portion in a radial direction in a circumferential direction of the compressor discharge-side pipe portion so as to form a plurality of flow paths in the compressor discharge-side pipe portion, and a second porous plate having a plurality of through holes. The second porous plate is provided in each of the plurality of flow paths and extends along the partition so that an air layer is formed between the second porous plate and the partition.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 25/02 - Ensembles comprenant des pompes et leurs moyens d'entraînement
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur

Abrégé

A compression device includes a centrifugal compressor and a silencer. The centrifugal compressor includes a compressor assembly bolt fastening an inlet side of an inlet guide to a scroll casing. The silencer includes: a first side wall extending in a direction intersecting with a rotational axis of an impeller; an annular second side wall provided between the first side wall and the centrifugal compressor and surrounding the rotational axis; at least one silencer element provided in an ambient-air introduction space formed between the first side wall and the second side wall for guiding an ambient air to the inlet guide; and a silencer assembly bolt extending from the first side wall to the scroll casing in a direction along the rotational axis of the impeller and fastening the first side wall, the second side wall, and the scroll casing.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/62 - MontageAssemblageDémontage des pompes radiales ou hélicocentrifuges
• F02M 35/12 - Silencieux d'admission
• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F01D 21/04 - Arrêt des "machines" ou machines motrices, p. ex. dispositifs d'urgenceDispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p. ex. indiquant cette position
• F02B 33/40 - Moteurs avec pompes autres que celles du type à piston alternatif avec pompes rotatives du type à déplacement non positif
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement

Abrégé

An impeller back surface cooling structure for cooling a back surface of a compressor impeller of a supercharger includes: a first member facing a back surface of a compressor impeller via a gap; and a second member extending in a circumferential direction of the compressor impeller and forming, between the first member and the second member, a cooling passage through which a cooling medium being a liquid flows.

Classes IPC  ?

• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci
• F01D 25/12 - Refroidissement
• F02B 39/14 - Lubrification des pompesMesures de sécurité à cet effet
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges

Abrégé

A hybrid turbocharger includes a first power conversion unit to convert direct-current power into alternating-current power to be output to a generator motor, a smoothing capacitor between direct-current buses, and a control unit that controls the first power conversion unit so as to cause actual generator motor speed to comply with an engine speed command of the generator motor input from an upstream controller during a motoring operation of the generator motor. The control unit changes the engine speed command to a value which is equal to or greater than the actual generator motor speed if the engine speed command of the generator motor is less than the actual generator motor speed and a direct-current bus voltage is equal to or greater than a predetermined first threshold value during the motoring operation. Accordingly, the direct-current bus voltage can be prevented from increasing during the motoring operation.

Classes IPC  ?

• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• H02P 21/18 - Estimation de la position ou de la vitesse
• 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
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Abrégé

A hybrid turbocharger includes a first power conversion unit to convert direct-current power into alternating-current power to be output to a generator motor, a smoothing capacitor between direct-current buses, and a control unit that controls the first power conversion unit so as to cause actual generator motor speed to comply with an engine speed command of the generator motor input from an upstream controller during a motoring operation of the generator motor. The control unit changes the engine speed command to a value which is equal to or greater than the actual generator motor speed if the engine speed command of the generator motor is less than the actual generator motor speed and a direct-current bus voltage is equal to or greater than a predetermined first threshold value during the motoring operation. Accordingly, the direct-current bus voltage can be prevented from increasing during the motoring operation.

Classes IPC  ?

• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• H02P 21/18 - Estimation de la position ou de la vitesse
• 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
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Abrégé

An impeller assembly includes: a compressor impeller; a flange member in which a shaft is inserted, the flange member having an abutting portion to abut on an upstream-side end surface, in an axis line direction, of the hub, and an impeller-side flange portion provided on an upstream side, in the axis line direction, of the abutting portion and protruding outward in a radial direction; a nut screwed on a tip portion of the shaft so as to hold the flange member between the nut and the end surface of the hub; a rotor of an electric generator or an electric motor, the rotor having a rotor-side flange portion disposed on an opposite to the hub across the impeller-side flange portion; and a fastening member fastening the impeller-side flange portion and the rotor-side flange portion to each other.

Classes IPC  ?

• F04D 29/054 - Dispositions pour le raccordement ou l'assemblage des arbres
• F04D 29/62 - MontageAssemblageDémontage des pompes radiales ou hélicocentrifuges
• F02B 33/40 - Moteurs avec pompes autres que celles du type à piston alternatif avec pompes rotatives du type à déplacement non positif
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/053 - Arbres
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges

Abrégé

Provided is an electric-assist supercharger configured such that a motor (30) is attached to the end portion of a rotor shaft (15) close to a silencer (26), the rotor shaft (15) being connected to a compressor portion. Such a supercharger includes a suction air introduction path (24) formed in the silencer 26 such that a main suction air flow flows in the radial direction of the silencer (26) toward a connection portion between the silencer (26) and the compressor portion, and a cooling air intake path (40) formed in the silencer (26) in which at least an outlet thereof is on the center axis of the rotor shaft (15).

Classes IPC  ?

• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F02B 37/04 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement
• F02B 33/40 - Moteurs avec pompes autres que celles du type à piston alternatif avec pompes rotatives du type à déplacement non positif
• F04D 29/063 - Lubrification spécialement adaptée aux pompes pour fluides compressibles
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• F04D 25/02 - Ensembles comprenant des pompes et leurs moyens d'entraînement

Abrégé

A method of manufacturing a turbocharger which allows easy performance of assembly operations of a motor rotor and a stator in a motor overhang structural turbocharger is provided. In a method of manufacturing a turbocharger in which a motor is attached to an end portion of a rotor shaft (15) connected to a compressor portion, the motor includes a cylindrical housing (33), a stator (32) accommodated inside the housing (33), and a motor rotor (31) which is connected to an end portion of the rotor shaft (15) with permanent magnets rotating inside the stator (32), and the method includes a rotor installation step of connecting and attaching the motor rotor (31) to the rotor shaft (15), a housing installation step of fixing and supporting the housing (33) coaxial to the rotor shaft (15), and a stator installation step of using the housing (33) as a guide, and inserting the stator (32) into the housing (33) such that the stator (32) does not directly come into contact with the motor rotor (31) to incorporate the stator (32) into the housing (33).

Classes IPC  ?

• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 25/02 - Ensembles comprenant des pompes et leurs moyens d'entraînement
• F04D 25/04 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/20 - Montage des rotors sur les arbres
• F04D 29/26 - Rotors spécialement adaptés aux fluides compressibles
• F04D 29/62 - MontageAssemblageDémontage des pompes radiales ou hélicocentrifuges
• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• H02K 15/03 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques comportant des aimants permanents
• H02K 15/16 - Centrage des rotors dans les stators

Abrégé

A control unit controls a first power converter so as to make the speed of a motor/generator coincide with a prescribed speed command. A speed command (N*) set by an upper stream control system is inputted to a smoothing unit of the control unit. In the smoothing unit, the speed command (N*) is smoothed by a first-order lag element, and the rate of change is limited by a rate limiter to a prescribed value or less. For the speed command (Ns*) outputted from the smoothing unit, the difference (ΔN) from the actual speed (N) of the motor/generator is calculated in a difference calculator, a control command (S) based on this difference (ΔN) is generated in a control signal generator, and the first power converter is controlled on the basis of this control command (S). Fluctuations in the supply of power to the electric motor are thereby suppressed.

Classes IPC  ?

• F02B 33/44 - Passages pour la charge de la pompe vers l'orifice d'admission du moteur, p. ex. réservoirs
• B60K 6/20 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH
• H02P 9/04 - Commande s'exerçant sur un moteur primaire non électrique et dépendant de la valeur d'une caractéristique électrique à la sortie de la génératrice
• F02B 37/04 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement
• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• F01N 5/04 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant l'énergie cinétique
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F02D 29/06 - Commande de moteurs, cette commande étant particulière aux dispositifs entraînés, ces dispositifs étant autres que des organes ou accessoires essentiels à la marche du moteur, p. ex. commande de moteur par des signaux extérieurs particulière aux moteurs entraînant des groupes électrogènes
• F02B 33/00 - Moteurs caractérisés par l'utilisation de pompes d'alimentation ou de balayage
• 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
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants

Abrégé

A hybrid turbocharger includes a first power conversion unit to convert a direct-current power into alternating-current power to be output to a generator motor, a smoothing capacitor between direct-current buses, and a control unit that controls the first power conversion unit so as to cause actual generator motor speed to comply with an engine speed command of the generator motor input from an upstream controller during a motoring operation of the generator motor. The control unit changes the engine speed command to a value which is equal to or greater than the actual generator motor speed if the engine speed command of the generator motor is less than the actual generator motor speed and a direct-current bus voltage is equal to or greater than a predetermined first threshold value during the motoring operation. Accordingly, the direct-current bus voltage can be prevented from increasing during the motoring operation.

Classes IPC  ?

• F02B 33/44 - Passages pour la charge de la pompe vers l'orifice d'admission du moteur, p. ex. réservoirs
• B60K 6/20 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH
• H02P 7/00 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu
• H02P 9/04 - Commande s'exerçant sur un moteur primaire non électrique et dépendant de la valeur d'une caractéristique électrique à la sortie de la génératrice
• H02P 9/00 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• 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
• 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
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Produits et services

Design of water vehicles; Design of machines, apparatus and equipment for water vehicles; Consultancy in the nature of energy saving, compliance with environmental regulations and environmental protection in the field of water vehicles; Providing information in the nature of energy saving, compliance with environmental regulations and environmental protection in the field of machines, apparatus and equipment for water vehicles; Consultancy in the field of energy-saving and energy efficiency; Providing information in the field of energy-saving and energy efficiency; Research, analysis, consultancy and providing information in the field of environmental protection; Testing or research on prevention of pollution.

Produits et services

Ships; steering gears for ships; screws (propellers) for ships; fin stabilizers for ships; ships' hulls; boats.

Produits et services

Turbochargers other than for land vehicles; engines other than for land vehicles; turbines other than for land vehicles.