Abrégé

The invention relates to a method for removing reactive particles from a vacuum environment (14), in which a process gas is conveyed from the vacuum environment (14) by means of a vacuum pump (21, 22). The process gas is passed between the vacuum environment (14) and the vacuum pump (21, 22) through a first filter (31) and a second filter (32) to filter reactive particles from the process gas. A liquid ring pump (35) is used to discharge particles from the first filter (31) and the second filter (32). In a first phase of the method, the first filter (31) is active and the second filter (32) is passive; in a second phase of the method, the first filter (31) is passive and the second filter (32) is active. In the first phase, the process gas is passed through the first filter (31) and the liquid ring pump (35) discharges particles from the second filter (32). In the second phase, the process gas is passed through the second filter (32) and the liquid ring pump (35) discharges particles from the first filter (31). The invention also relates to a device for removing reactive particles from a vacuum environment and to a process system for producing monocrystalline silicon ingots.

Classes IPC  ?

• B01D 46/71 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre par action à contre-courant sur la surface filtrante, p. ex. en rinçant du côté du filtre sans gâteau avec du gaz sous pression, p. ex. de l'air pulsé
• B01D 46/58 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative montés en parallèle
• C30B 15/00 - Croissance des monocristaux par tirage hors d'un bain fondu, p. ex. méthode de Czochralski
• C30B 29/06 - Silicium

Abrégé

A compact, low footprint energy recovery module for a reverse osmosis (RO) desalination system comprises a vertical stack of horizontal conduits, at least one energy recovery device (ERD), and an axial integral motor pump (IMP). The horizontal conduits are configured to carry low-pressure brackish water, pressurized brackish water, high pressure brine, and low-pressure brine. The ERDs, which are substantially cylindrical and vertically oriented, are interconnected with the horizontal conduits and entirely supported thereby. The IMP is substantially cylindrical and extends horizontally and coaxially from an outlet end of the pressurized water conduit, the IMP being configured to further pressurize the pressurized water for input to a membrane osmosis device. The IMP can have a diameter that exceeds a largest horizontal conduit diameter by no more than 25%. The IMP can be driven by a variable frequency controller, being thereby continuously variable in pumping speed.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/08 - Appareils à cet effet
• B01D 61/06 - Récupération d'énergie
• B01D 61/10 - AccessoiresOpérations auxiliaires
• B01D 61/12 - Commande ou régulation
• C02F 103/08 - Eau de mer, p. ex. pour le dessalement

Classes IPC  ?

• F04C 19/00 - Pompes à piston rotatif avec anneau fluide ou dispositif analogue spécialement adaptés pour les fluides compressibles
• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
• F04C 28/02 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour plusieurs pompes connectées en série ou en parallèle
• F04C 28/26 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge utilisant des canaux de dérivation

Abrégé

A system configured for cooling electronic devices implements flow control devices that vary a flow of a cooling liquid past the electronic devices through at least one cooling loop or conduit, or through an immersion tank. A controller detects and/or predicts overall cooling requirements and/or localized hotspots and adjusts the flow control devices to direct proportionately more cooling liquid to the hotspots. The flow control devices can be any combination of variable speed pumps and/or adjustable valves, vents, and/or baffles. Active manifolds can be placed on two opposing sides of the devices, on four opposing sides, and/or above and/or below the devices. Temperatures proximate the devices can be measured by separate sensors and/or sensors integral to components of the electronic devices. Hotspots can be predicted by monitoring current flows, power flows, and/or voltages of the electronic devices, and/or inferred from network activity and/or from a workload queue.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A dual channel volute of a concrete volute pump (CVP) is prefabricated and then transported and assembled to its base at the application site. A cutwater recess is provided in the base into which the lower edge of the cutwater extends, thereby providing sufficient mechanical support of the cutwater to withstand all applied pressures and stresses during normal operation without distortion or failure. The base can further include a sidewall recess into which the lower edge of the sidewall extends. In embodiments, the disclosed volute is prefabricated in sections that are separately transported, and then assembled and sealed together at the application site. The cutwater and/or sidewall cuts that divide the sections can be within ten degrees of perpendicular to the cutwater and/or sidewall. An impeller chamber of the volute can be sufficiently large to contain an impeller having a diameter of at least 1.2 meters.

Classes IPC  ?

• F04D 7/02 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/62 - MontageAssemblageDémontage des pompes radiales ou hélicocentrifuges
• F04D 29/16 - Joints d'étanchéité entre le côté du refoulement et celui de l'aspiration

Abrégé

An energy recovery turbocharger applicable to a pressurized process applies pressurized product fluid to a turbine runner that is mechanically cooperative with a pump impeller configured to pressurize a reactant fluid. An integral motor/generator, which can be coupled to the runner or impeller shaft, or directly to the runner or impeller, is configured to add or remove torque or load as needed. A controller can regulate the runner and impeller at desired rotation rates by controlling the energy delivered to or withdrawn from the motor/generator. In embodiments, the controller comprises a variable frequency drive. The runner and impeller can be linked by a mechanical transmission, which can be adjustable by the controller, or fixed to a common shaft and constrained to rotate at the same rate. In embodiments the turbine includes variable pitch input guide vanes that are adjusted by the controller according to the runner rotation rate.

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
• 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
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
• H02P 27/04 - 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

Abrégé

The invention relates to a method for operating a screw pump (14), said screw pump (14) comprising a first screw (31) and a second screw (32). The thread of the first screw (31) engages with the thread of the second screw (32) such that working chambers are formed by the mutual engagement of the threads, the volume of said working chambers decreasing from the suction side (20) of the screw pump (14) to the pressure side (21) of the screw pump (14). The screws (31, 32) are rotated without contacting each other, and the mutual rotational position of the first screw (31) and of the second screw (32) is changed within a tolerance range (25) of the contactless rotation, as planned, in order to remove deposits from a surface of the first screw (31) and a surface of the second screw (32). The invention also relates to a control unit for a screw pump, to a screw pump and to a computer program product.

Classes IPC  ?

• F04C 2/16 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 13/00 - Adaptations des "machines" ou pompes pour utilisation particulière, p. ex. pour très hautes compressions
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 25/02 - Adaptations de pompes pour utilisation spéciale pour les fluides compressibles pour produire un vide élevé
• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

An internal pressurized lubrication system of a radial support bearing assembly includes oil passages within a bearing housing that comprise a charge-retaining section bounded by vertical or upward-sloping passages and configured to retain an oil charge therein during a shutdown. A vent bleeds air into the suction side of the passages during a shutdown, thereby preventing syphoning of the oil charge from the charge-retaining section. In embodiments, a rear cover plug is doubly sealed to the bearing housing body, and air is substantially unable to enter the oil passages via the bearing or via the vent during a shutdown, such that the passages remain oil-filled and the pump prime is retained for an extended time period. The bearing assembly can further include a thrust bearing, and/or an axial displacement measurement probe parallel with the shaft-driven oil pump. The radial support bearing can be a journal bearing.

Classes IPC  ?

• F16C 33/10 - Structures relatives à la lubrification
• F16C 33/66 - Pièces ou détails particuliers pour la lubrification

Abrégé

A pumping system includes a plurality of interconnected integrated motor/pump modules (IMPs) submerged in a process liquid, such as liquid hydrogen (LH2), within a container, the IMPs being separately controlled by adjustable speed drives (ASDs). The rotation speeds of the IMP impellers are controlled such that the NPSH_A for each IMP remains above a minimum, critical suction head NPSH_c of the IMP, while the outlet pressure and flow of the last IMP is maintained at a specified level unless its NPSH_A falls substantially to its NPSH_c, or until the container is substantially empty. The IMPs can be identical, initially operating at the same speeds, or the first IMP can be an inducer IMP having a reduced NPSH_c. The IMPs can comprise permanent magnets or induction coils attached to their impellers that pass in proximate radial or axial alignment with stator coils. The ASDs can be variable frequency drives (VFDs).

Classes IPC  ?

• F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
• F04D 13/12 - Combinaisons de plusieurs pompes
• F04D 13/16 - Installations ou systèmes de pompage avec des réservoirs de stockage
• F04D 15/00 - Commande, p. ex. régulation de pompes, d'installations ou de systèmes de pompage
• F04D 29/22 - Rotors spécialement pour les pompes centrifuges
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 1/06 - Pompes multiétagées

Abrégé

A system and method of pumping low-density liquids, such as liquid hydrogen (LH2), includes a plurality of integrated motor/pump modules (IMPs) interconnected in series, each having a single IMP impeller. A controller separately adjusts the speeds of the IMP impellers such that a specified head of the pumping system is achieved, while a critical NPSH c of each IMP remains below its NPSH A. The IMPs can be identical, and the controller can cause all of the impellers to rotate at the same speed, except for any that require a speed reduction to ensure that its NPSH c remains below its NPSH A. The IMPs can comprise induction coils or permanent magnets attached to the impellers that pass in proximate radial or axial alignment with stator coils. The IMPs can be controlled by variable frequency drives (VFDs). A cooling system can transfer heat from within the IMP to an external heat destination.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 7/02 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge
• F04D 1/06 - Pompes multiétagées
• F04D 29/22 - Rotors spécialement pour les pompes centrifuges
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 15/00 - Commande, p. ex. régulation de pompes, d'installations ou de systèmes de pompage
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile

Abrégé

A coil assembly of a seal-less pump or turbine comprises materials having differing coefficients of thermal expansion that are layered but not bonded together, thereby reducing thermal stresses at cryogenic temperatures. Differences in shrinkage upon cooling provides compressive structural support. Coils are wound on hollow, non-magnetic spools, and a resin is applied for mechanical support, for example by vacuum impregnation. A release agent prevents bonding of the resin to the coils. The hollow spools are then placed over winding cores, such as laminated iron cores, without bonding. During cooling, the non-metallic spools shrink more than the cores, thereby providing compression fits. At ambient temperature, the spools can be held in place by interferences fits, and/or by key-stock pieces. Wired interconnections between the coils can be located within a wire harness cavity, which can be filled with a resin to provide mechanical support, while a release agent prevents bonding.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 7/02 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile

Abrégé

An integral motor pump (IMP) or integral motor turbine (IMT) includes an axial field permanent magnet synchronous motor (PMSM) having a stator that is sealed by a disk-shaped non-conducting stator cover axially interposed between the stator and PMSM impeller, such that eddy currents are not generated in the stator cover by the rotating permanent magnets of the impeller. The stator cover can be annular, and can be fixed directly to the stator housing, or pressed against the stator housing by brackets. The seal can be formed by an adhesive, and/or by at least one gasket. Either the stator cover or the brackets can include flanges extending axially proximate the stator housing, and attached to the stator housing by any combination of an interference fit, an adhesive, set screws, or a protrusion extending into an indentation. In embodiments, the bracket flanges are welded to the stator housing.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/08 - Joints d'étanchéité
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• H02K 3/42 - Moyens pour éviter ou réduire les pertes par courants de Foucault dans les têtes de bobines, p. ex. par adjonction d'écrans
• H02K 5/08 - Enveloppes en matériau isolant

Abrégé

An integral motor pump (IMP) or turbine (IMT) applicable to a low temperature process liquid, such as liquid hydrogen, includes an impeller having an annular ring of permanent magnets attached thereto passing in axial proximity to a plurality of stator coils. The magnet ring is radially bounded by inner and outer compression sleeves having coefficients of expansion (CTEs) respectively less than and greater than the CTE of the magnets. Unequal thermal contraction of the compression sleeves, when cooled by the process liquid, applies radial compression to the magnet ring, overcoming centrifugal forces and maintains the magnets in radial compression, thereby preventing fracturing or pulverizing of the magnets. The magnet ring can be a monolithic ring with alternating magnetic regions, a ring of closely abutting magnets, or a ring of discrete magnets surrounded by a barrier material having a CTE equal to the magnet CTE.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 7/02 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/046 - Paliers
• F01D 11/00 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile

Abrégé

An axial direct drive integral motor pump (IMP) or integral motor turbine (IMT) includes a stator or impeller housing hermetically sealed in front by a cover plate. At least one port in a housing rear face enables a barrier material, such as a resin, to be injected into the housing after attachment of the cover plate, so that the barrier material abuts the cover plate with substantially no gap therebetween. The barrier plate is thereby protected from undue deformation and damage by a pressurized process fluid. The barrier material can be injected through one or more fill ports by vacuum impregnation, and/or displaced air can escape through one or more drain ports. The ports can be sealed by plugs. The ports and plugs can be threaded and/or tapered. The coefficient of thermal expansion (CTE) of the barrier material can be substantially equal to a CTE of the first housing.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/08 - Joints d'étanchéité
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/62 - MontageAssemblageDémontage des pompes radiales ou hélicocentrifuges
• H05K 5/10 - Enveloppes, coffrets ou tiroirs pour appareils électriques comprenant plusieurs parties formant une enveloppe fermée
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• B23K 26/21 - Assemblage par soudage

Abrégé

Axial bearing wear of a directly driven, axial, integral motor pump (IMP) or integral motor turbine (IMT) is monitored without use of sensors by estimating an axial rotor-stator gap according to a known dependence of the back EMF on the impeller rotation rate and the rotor-stator gap. The back EMF can be directly measured, for example between impulses of a variable frequency drive (VFD), or inferred from measurements of voltage applied to IMP stator coils and the resulting current. The rotation rate of an IMT impeller can be determined from a modulation frequency of the EMF. The rotation rate of an IMP impeller can be inferred due to its synchronicity with the applied, amplitude modulated power. A controller can record and report rotor-stator gap estimates over time, and can halt operation of the module if the estimated rotor-stator gap falls outside of a specified range.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/041 - Équilibrage des poussées axiales
• F04D 29/043 - Arbres
• F04D 29/046 - Paliers
• F04D 15/00 - Commande, p. ex. régulation de pompes, d'installations ou de systèmes de pompage
• F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
• H02K 5/16 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
• H02K 7/08 - Association structurelle avec des paliers

Produits et services

Reverse osmosis pumps, centrifugal pumps, plunger pumps, electric pumps, hydraulic pumps and water pumps for machines, and control valves therefor and structural components and structural parts thereof; valves being parts of machines; rotary valves being parts of machines; spool valves being parts of machines

Abrégé

The invention relates to a compressor arrangement and method for compressing hydrogen produced by an electrolyser, wherein hydrogen is compressed to an intermediate pressure (20) by a first liquid ring machine (15) and the hydrogen is compressed from the intermediate pressure (20) to an outlet pressure by a second liquid ring machine (25, 35, 41, 42, 43, 44, 45). Pressure compensation between the outlet side (21) and the inlet side (22) of the first liquid ring machine (15) is permitted via a bypass line (16). The inlet pressure (18) on the inlet side (22) of the first liquid ring machine (15) is kept constant by changing the cross-section of the bypass line (16) with an adjustable valve (17). The hydrogen is compressed from the intermediate pressure (20) to the outlet pressure without the intermediate pressure (20) being kept constant.

Classes IPC  ?

• F04C 19/00 - Pompes à piston rotatif avec anneau fluide ou dispositif analogue spécialement adaptés pour les fluides compressibles
• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
• F04C 28/26 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge utilisant des canaux de dérivation
• F04C 28/02 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour plusieurs pompes connectées en série ou en parallèle

Abrégé

A booster-ejector system captures and recycles leakage fluids from a process. When a pressure differential (head) of the process is above a threshold value, an ejector system uses motive fluid from a process high-pressure (HP) region to entrain and compress the leakage fluid, and direct it to a low pressure (LP) region. When the head is below the threshold value, a controller reconfigures a plumbing system and activates a leakage pump to pump the leakage fluid to the LP region. The system can include only one ejector, or a plurality thereof, which can be coupled such that the diffuser output of each ejector is directed to the suction input of the next ejector. At least one of the ejectors can include an exchangeable throat, which can impart a rotational component to the fluid. The HP and LP regions can be the output and input, respectively, of a compressor.

Classes IPC  ?

• F17D 1/065 - Aménagements pour propulser les gaz ou les vapeurs
• F17D 3/01 - Dispositions pour la surveillance ou la commande des opérations de fonctionnement pour commander, signaler ou surveiller le transfert d'un produit
• F17D 5/00 - Protection ou surveillance des installations

Abrégé

The invention relates to a method for removing reactive particles from a vacuum environment (14), in which a process gas is conveyed from the vacuum environment (14) by means of a vacuum pump (21, 22). The process gas is passed between the vacuum environment (14) and the vacuum pump (21, 22) through a first filter (31) and a second filter (32) to filter reactive particles from the process gas. A liquid ring pump (35) is used to discharge particles from the first filter (31) and the second filter (32). In a first phase of the method, the first filter (31) is active and the second filter (32) is passive; in a second phase of the method, the first filter (31) is passive and the second filter (32) is active. In the first phase, the process gas is passed through the first filter (31) and the liquid ring pump (35) discharges particles from the second filter (32). In the second phase, the process gas is passed through the second filter (32) and the liquid ring pump (35) discharges particles from the first filter (31). The invention also relates to a device for removing reactive particles from a vacuum environment and to a process system for producing monocrystalline silicon ingots.

Classes IPC  ?

• B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
• B01D 46/44 - Commande de la filtration
• B01D 46/70 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre par action à contre-courant sur la surface filtrante, p. ex. en rinçant du côté du filtre sans gâteau
• B01D 46/90 - Dispositifs permettant de mettre hors service une ou plusieurs unités de filtres multi-unités, p. ex. pour la régénération ou l’entretien
• C30B 15/00 - Croissance des monocristaux par tirage hors d'un bain fondu, p. ex. méthode de Czochralski

Abrégé

A multi-stage hydraulic rotating machine (MSHRM) maintains near-optimal efficiency over widely varying conditions of service (COS) when controlling a fluid having a gas volume fraction (GVF) greater than 50% and large changes in volumetric flow rate (VFR) between stages. The MSHRM includes separately controlled stages having at least two different designs with different VFR ranges. Stage impellor differences can include impellor diameter, blade pitch, blade width, blade number, inlet diameter, and outlet diameter. Diffusers can differ in similar ways between stages. VFR ranges can be progressively higher or lower in successive stages. The stages can share a common VFR range within which incompressible liquids can be controlled. The MSHRM can function as a pump or turbine, and can be applicable to energy storage and recovery in "green" energy systems.

Classes IPC  ?

• F04D 13/12 - Combinaisons de plusieurs pompes
• F01D 13/00 - Combinaisons de plusieurs "machines" ou machines motrices
• F04D 7/00 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe

Abrégé

A trunnion ball valve provides a reliable seal when closed, while minimizing or eliminating frictional resistance during rotation of the ball. A pressurization chamber behind the upstream valve seat can be interconnected by one or more pressurization valves with either the upstream or the downstream process fluid. The interconnection can be via a single 3-way valve. When the valve is closed and the ball is fixed in orientation, the pressurization chamber is automatically connected to the upstream process fluid, thereby pressing the seat against the ball and ensuring a reliable seal. While the ball is being rotated, the pressurization chamber is automatically connected to the downstream process fluid, thereby substantially eliminating valve seat friction. Connection to the downstream process fluid can include connection to a small space in front of the upstream seat. An electronic controller can control both valve stem rotation and the pressurization valves.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 27/06 - Structures des logementsMatériaux utilisés à cet effet des robinets ou des vannes
• F16K 11/087 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
• F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques

Abrégé

A valve system for controlling a corrosive process liquid flow, while avoiding corrosion due to a liquid/vapor interface of the process liquid, causes the process liquid to flow from the valve through a purge port into a vertical segment of a purge line. During valve initialization, a non-reactive gas backpressure within the purge line is controlled to establish the liquid/vapor interface at a desired height within the vertical segment, as determined by an interface level sensor, which can be ultrasonic. The vertical segment is constructed from, or lined with, a material that can withstand contact with the liquid/vapor interface. During valve operation, the non-reactive gas pressure can continue to be regulated, or a purge valve can be shut, trapping a fixed quantity of the non-reactive gas within the purge line. The valve can include a heater configured to prevent a molten process liquid from solidifying within the valve.

Classes IPC  ?

• F16K 25/04 - Dispositions pour empêcher l'usure, non prévues ailleurs
• F16K 1/52 - Dispositifs pour le réglage additionnel du débit
• F16K 17/02 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté
• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 49/00 - Moyens portés par ou sur les soupapes pour chauffer ou refroidir

Abrégé

A valve configured to control a flow of a process fluid includes a pair of packing seals separated by a seal gap space along a linear valve stem of the valve, and a pressurization port that can be used to apply a pressurizing fluid, such as nitrogen gas, to the seal gap at a gap pressure that is higher than the process fluid pressure, thereby ensuring that any leakage past the packing seals will be of pressurizing fluid into the process fluid and/or into the environment, and that no process fluid will escape into the environment. The pressure or flow rate of the pressurizing fluid can be monitored to detect and quantify any pressurization fluid leakage past either of the packing seals, so that a maintenance action can be applied to the valve, such as re-tightening or replacing at least one of the packing seals, or replacing the valve.

Classes IPC  ?

• F16K 1/46 - Fixation des segments d'étanchéité
• F16K 1/36 - Corps de soupapes
• F16K 1/42 - Sièges de soupapes
• F16K 17/02 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté
• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme

Abrégé

A valve for controlling a molten liquid includes an expansion port in liquid communication with an internal volume of the valve that is filled with the molten liquid. An expansion valve can be opened during unfreezing of the valve, to allow melting process substance to expand out of the internal volume into an expansion line as it is melted. During initialization of the valve, an inert gas source, pressure regulator, and ultrasonic transition level sensor can be used to establish a liquid/gas interface at a desired height within the expansion line. The valve can include a multi-zone heater, wherein a first of the zones is adjacent the expansion port, so that during unfreezing, after the first zone has been melted, the remaining zones can be sequentially activated in an order that ensures that each zone is activated only after an adjacent zone has been melted.

Classes IPC  ?

• F16K 31/00 - Moyens de fonctionnementDispositifs de retour à la position de repos
• F16K 17/02 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté
• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 49/00 - Moyens portés par ou sur les soupapes pour chauffer ou refroidir

Abrégé

A bellows seal valve includes a pressurization port that can be used to apply a compensating pressure to the "atmosphere" side of the bellows, i.e. the side of the bellows that is opposite to the process fluid. The atmosphere side can be on the interior or exterior of the bellows. The compensating pressure can be greater than the process fluid pressure, to ensure that any leakage will be of pressurizing fluid into the process fluid or into the environment, and that no process fluid will escape into the environment. The pressure or flow rate of the pressurizing fluid can be monitored to detect bellows and packing leaks. A pressurizing fluid exit port can be provided, so that the pressurizing fluid can be circulated through the valve, thereby moderating the bellows temperature under conditions of extreme process fluid temperature.

Classes IPC  ?

• F16K 31/126 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un diaphragme, un soufflet ou un organe similaire
• F16K 17/02 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté
• F16K 1/46 - Fixation des segments d'étanchéité
• F16K 1/52 - Dispositifs pour le réglage additionnel du débit
• F16K 1/42 - Sièges de soupapes
• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 49/00 - Moyens portés par ou sur les soupapes pour chauffer ou refroidir

Abrégé

An apparatus for measuring a pressure of a corrosive or high temperature process liquid includes a pressure sensor in communication with the process liquid via a vertical tube. A buffer gas injected into the vertical tube forms a liquid/gas interface at a desired height. The buffer gas supply is then either isolated or regulated so as to cause the buffer gas pressure within the vertical tube to remain equal with the process liquid pressure. The pressure sensor indirectly measures the process liquid pressure by measuring the buffer gas pressure within the vertical tube, while remaining chemically and thermally protected from the process liquid. In embodiments, pressure measurements from a pair of gas buffered pressure sensors located upstream and downstream of a valve are combined with measurements of the process liquid temperature to determine a flow rate of the process liquid through the valve.

Classes IPC  ?

• G01L 19/06 - Moyens pour empêcher la surcharge ou l'influence délétère du milieu à mesurer sur le dispositif de mesure ou vice versa
• G01L 19/00 - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
• G01L 19/08 - Moyens pour l'indication ou l'enregistrement, p. ex. pour l'indication à distance
• G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
• G01F 15/00 - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p. ex. pour l'indication à distance
• G01K 13/02 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de fluides en mouvement ou de matériaux granulaires capables de s'écouler
• G01D 21/02 - Mesure de plusieurs variables par des moyens non couverts par une seule autre sous-classe
• G05D 7/06 - Commande de débits caractérisée par l'utilisation de moyens électriques

Abrégé

A valve includes at least one valve stem seal, such as a packing seal, that is included in a removable seal cartridge. The valve stem is connected to the actuator via a linkage, which can be removed to provide a linkage gap between the actuator and the valve stem. The seal cartridge can then be slid along the valve stem into the linkage gap and laterally removed from the valve, whereupon the seals within the seal cartridge can be refurbished. The valve can be a rotary or linear valve. In embodiments, the linkage gap can be increased by linear displacement of the actuator away from the valve stem. The seal cartridge can be re-installed in the valve after refurbishment, or a substantially identical replacement seal cartridge can be provided, and can be installed in the valve in replacement of the removed seal cartridge, thereby minimizing downtime of the valve.

Classes IPC  ?

• F16K 41/02 - Joints d'étanchéité pour tiges avec un presse-étoupe
• F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage

Abrégé

Fluid flow control devices, systems, and methods may include a body extending along a longitudinal axis. The body has a fluid inlet at a first axial end of the body and a fluid outlet at a second axial end of the body. Channels may extend through an interior portion of the body between the fluid inlet at the first axial end and the fluid outlet at the second axial end. The channels collectively define fluid pathways through the body.

Classes IPC  ?

• F16L 55/027 - Étranglements
• B33Y 80/00 - Produits obtenus par fabrication additive
• F16K 47/06 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour diminuer la pression, l'organe régulateur étant incorporé dans l'élément de fermeture l'organe régulateur étant en forme de canal hélicoïdal

Abrégé

A method of managing a battery of a wireless sensor or other battery- powered remote wireless device includes pre-characterizing the device's energy usage during its various activities and modes, placing the device in operation, opportunistically gathering device operational data obtained for purposes other than battery management, and estimating a status of the battery according to an analysis of the operational data in light of the pre-characterized information. The method further includes taking a battery management action according to the estimated battery status, such as recharging or replacing the battery when it is nearly exhausted, and/or modifying the operation of the device so as to extend the battery lifetime, for example by reducing or increasing the frequency of data transmissions, measurements, calculations, and/or other dynamic current events. The status estimate can further be in light of measurements provided by a simple current measuring circuit included in the device.

Classes IPC  ?

• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• G01R 31/392 - Détermination du vieillissement ou de la dégradation de la batterie, p. ex. état de santé
• G01R 31/382 - Dispositions pour la surveillance de variables des batteries ou des accumulateurs, p. ex. état de charge
• G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
• G06N 3/00 - Agencements informatiques fondés sur des modèles biologiques

Abrégé

A plug-and-seat valve plug head assembly that resists abrasive erosion includes a hardened plug head, such as a ceramic plug head, attached to a plug stem without any soldering, welding, or braising attachment to the plug head. A diameter of a second portion of the plug head smoothly increases according to a plug diameter profile. A diameter of a first portion of the plug head is everywhere smaller than the plug diameter profile, and is maximal at a location spaced apart from the second portion. A plug head retainer overlaps and closely conforms to the first portion, while presenting an exterior surface that smoothly continues and extends the plug diameter profile. In embodiments, a plug head retainer blank attaches to the plug head retainer, capturing the plug head therebetween. Embodiments apply radial and/or axial stress to the plug head.

Classes IPC  ?

• F16K 5/02 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface coniqueLeurs garnitures d'étanchéité
• F16K 27/06 - Structures des logementsMatériaux utilisés à cet effet des robinets ou des vannes
• F16K 25/04 - Dispositions pour empêcher l'usure, non prévues ailleurs

Abrégé

Devices and method include relatively moving elements having one or more bearing surfaces defining a gap between the elements into which a fluid is received. At least one of the bearing surfaces comprises a varying topography to provide pressurized volumes of the fluid in order to define a hydraulic bearing to support at least one of the elements during movement.

Classes IPC  ?

• F04F 13/00 - Échangeurs de pression
• F16C 17/00 - Paliers à contact lisse pour mouvement de rotation exclusivement
• F16C 33/02 - Éléments des paliers à contact lisse

Abrégé

A pressure retained gasket seal provides enhanced resistance to hydraulic unloading by including a notch formed in a rear face of the gasket groove, thereby reducing intrusion of process fluid behind the gasket and improving hydraulic retention of the gasket seal. Embodiments increase the process fluid pressure limit of the gasket seal by a factor of two or three compared to gasket seals of the prior art. In embodiments, the gasket groove has a dovetail cross-section, thereby increasing resistance to process fluid pressure by requiring compression of the gasket before it can be dislodged from the groove. Embodiments form the gasket from flexible graphite, which can be initially shaped as an annulus and then forced by an applied load into the gasket groove in conformance with the notch. Embodiments include compressing the graphite to within 50% or even 70% of its maximum density during installation thereof.

Classes IPC  ?

• F16J 15/02 - Joints d'étanchéité entre surfaces immobiles entre elles
• F16J 15/00 - Joints d'étanchéité

Abrégé

Pumps and fluid-handling devices for modifying at least one property of a fluid and related method comprise a compensation assembly including at least one biasing element to enable a hydraulic insert to move within a housing.

Classes IPC  ?

• F04D 1/06 - Pompes multiétagées
• F04D 29/041 - Équilibrage des poussées axiales
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs
• F04D 29/042 - Rotors pouvant se déplacer dans le sens axial

Produits et services

Industrial products and equipment including pumps, valves, seals, turbines, instrumentation equipment including actuators and positioners, energy recovery devices, associated products for the foregoing, parts therefor, and components and features thereof; computer hardware, software, peripherals, and equipment for use in performing industrial equipment monitoring services, and parts, components and features thereof.

Produits et services

Industrial products and equipment including pumps, valves, seals, turbines, instrumentation equipment including actuators and positioners, energy recovery devices, associated products for the foregoing, parts therefor, and components and features thereof; computer hardware, software, peripherals, and equipment for use in performing industrial equipment monitoring services, and parts, components and features thereof.

Abrégé

A high-speed transportation system comprises an evacuated travel conduit divided by closable gates into a plurality of segments associated with corresponding segment pumps that maintain operating vacuums within the segments when vehicles are present. When a segment is unoccupied, energy is saved by closing the adjoining gates and deactivating the associated segment pump, thereby deactivating the segment and allowing the segment's internal pressure to rise due to leakage. As a vehicle approaches, the segment pump is reactivated, lowering the internal pressure to the operating vacuum, and the gates are opened. Embodiments include a boom-tank system that can accelerate re-evacuation of a segment having an increased internal pressure by establishing fluid communication with at least one recently deactivated segment having a lower internal pressure. As a vehicle transits the conduit, a rolling, contiguous group of activated segments surrounding and in advance of the vehicle can be maintained.

Classes IPC  ?

• B61B 13/10 - Systèmes à tunnel
• B61L 25/02 - Indication ou enregistrement de la position ou de l'identité de véhicules ou de trains

Abrégé

A bulkhead passthrough connector containing a printed circuit board (PCB) for transferring electrical signals across a bulkhead to an electronic valve actuator, an electronic valve actuator configured to operate and communicate with a valve using a PCB through a bulkhead, the electronic valve actuator, and a method of assembling a bulkhead passthrough connector incorporating a PCB. The embodiments may include a passthrough partition which separates one side of the bulkhead from another. A PCB retainer may also be secured to the passthrough partition. The PCB is attached to the PCB retainer and extends from one side to another side of the bulkhead through the passthrough partition. The PCB further includes electrical paths printed on the PCB and electrical connectors located on both sides of the bulkhead to enable communication with external devices.

Classes IPC  ?

• F16L 5/08 - Scellement au moyen de vis axiales comprimant une bague ou un manchon
• H01R 13/436 - Fixation de plusieurs pièces de contact par une seule pièce de verrouillage
• H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
• H02G 15/013 - Moyens d'étanchéité pour entrées de câble
• H05K 1/02 - Circuits imprimés Détails

Abrégé

An apparatus for raising and lowering a cutting tool within a decoking drum, a decoking system and a method of raising and lowering a decoking system cutting tool. Instead of using metallic ropes, chains, or a self-propelled gear-based approach, non-metallic belts are secured at respective ends to a crosshead and one or more counterweights to enable vertical movement of the crosshead that in turn permits vertical movement of the cutting tool throughout the height of the drum. A motorized pulley system controls the movement of the belt, and preferably avoids having the motor be carried by the crosshead. The belts on each pulley are preferably arranged as cooperative sets so that within each set, both primary load belts and secondary load belts are present. Enhanced engagement between at least the primary load belts and the pulleys promotes greater load-bearing capability, while the secondary load belts are sufficiently strong to ensure positional stability of the crosshead and decoking tool upon damage to or failure of one or more of the primary load belts.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• F16G 1/28 - Courroies de transmission avec une surface de contact de forme particulière, p. ex. à dents
• F16G 1/10 - Courroies de transmission en caoutchouc avec renforcements liés par le caoutchouc ces renforcements étant faits de textile
• B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
• F16H 55/17 - Roues dentées
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
• F16H 19/00 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini

Abrégé

A pneumatically controlled flow booster includes a booster valve plug position sensor that enables control of the flow booster in a feedback loop, for example by a pneumatic valve positioner, thereby providing accurate, high speed, high flow control of both small and large actuator adjustments. Embodiments can accurately control a surge suppression valve over extended valve adjustment ranges and can fully open a surge suppression valve during a trip. The flow booster valve can include a spool and sleeve valve and/or a poppet valve. Embodiments provide bimodal flow boosting, whereby the output flow is less dependent on the valve plug position in a first position range, and more strongly dependent on the valve plug position in a second range.

Classes IPC  ?

• F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
• F15B 13/044 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique actionnés par des moyens commandés électriquement, p. ex. des solénoïdes, des moteurs à couple

Abrégé

A bridging module provides sealable interconnection between segments of an evacuated tube transportation system. A pair of gate elements are horizontally transitioned by a drive mechanism from a stored configuration offset from the tube segments to a deployed configuration where an expanding mechanism presses them outward to seal portals to the tube segments. The module can thereby be vented while the tube segments retain vacuum. A rail carriage in the module can bridge between overhead capsule support rails of the tube segments. A lifting mechanism can lift the rail carriage into a rail carriage section above the portals to allow the gate elements to deploy. The gate elements can be supported by rails and/or linear bearings, and pressed outward by opposed pneumatic pistons located between them, e.g. proximal to the four corners of the gate elements. The drive mechanism can include a motor with rack and pinion.

Classes IPC  ?

• B61B 13/10 - Systèmes à tunnel
• E05F 15/635 - Mécanismes pour battants mus par une force motrice utilisant des actionneurs électriques utilisant des électromoteurs rotatifs pour battants à coulissement horizontal manœuvrés par des mécanismes "pousser-tirer", p. ex. par des dispositifs à crémaillère souples ou rigides

Abrégé

Fluid flow control devices and related systems and methods may include a body or housing and a plug at least partially positioned in the body or housing to define a flow path. In a position of the plug, the plug and the body or housing may collectively define a fluid flow path.

Classes IPC  ?

• F16K 5/12 - Dispositions pour modifier la façon dont le débit varie pendant le fonctionnement du robinet ou de la vanne

Abrégé

Devices, systems, and methods for detecting properties of motion of at least one component of fluid exchange devices, such as, for example, a pressure exchange device or system.

Classes IPC  ?

• F04F 13/00 - Échangeurs de pression
• F15B 3/00 - Amplificateurs ou convertisseurs de pression de fluide, p. ex. échangeurs de pressionTransmission de la pression d'un système à fluide à un autre, sans contact entre les fluides
• G01P 3/50 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer une vitesse linéaire

Produits et services

Metal seals for use in mechanical and structural parts, components, and features thereof in the fields of power generation, chemical processing, water management, treatment, irrigation, flood control and desalination, and oil and gas production, transportation and processing Electric pumps for industrial use; valves being parts of machines; machine parts, namely, mechanical seals; turbines, other than for land vehicles; structural parts, components and features for the aforementioned goods High-pressure pumps for proportioning and testing purposes; automatic valves; electric actuators; LED position sensors; computer hardware; computer peripherals; equipment for use in performing industrial equipment monitoring services, namely, monitors to determine levels of water desalination used in the fields of power generation, chemical processing, water management, treatment, irrigation, flood control and desalination, and oil and gas production, transportation and processing; structural parts and components for the aforementioned goods; Downloadable computer software for use in database management to provide database management consultation services in the field of diagnosis, maintenance and repair of industrial pumps, valves, mechanical seals and related equipment Energy recovery ventilators and structural parts, components and features for the aforementioned goods Turbines for land vehicles and structural parts, components and features for the aforementioned goods

Abrégé

A dry running mechanical ball joint seal includes a spherical element penetrated by a central passage and suspended between support rings pressed by springs against the spherical element and forming a sliding dry seal therewith. A lip seal located between the support rings includes wipers pressed radially inward by a lip seal spring to form an additional seal with the spherical element. In embodiments directed to piping systems, a fluid is able to flow through the central passage. Other embodiments include a sliding rod directed through the central passage and sealed to the spherical element by a rod support within the central passage and also by at least one rod lip seal having a wiper pressed by a spring against the rod. The rod support can include a compressible packing material and/or a linear ball bearing sealed to the spherical element within the central passage.

Classes IPC  ?

• F16J 15/3208 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre pourvue d’éléments de tension, p. ex. de bagues élastiques
• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F16C 11/06 - Articulations à rotuleAutres articulations ayant plus d'un degré de liberté angulaire, c.-à-d. joints universels

Abrégé

A coaxial pump or turbine module includes an integral, modular motor or generator comprising a magnet structure containing radial or axial permanent magnets and/or induction coils detachably fixed to a rotor, and a stator housing detachably fixed to the module housing. Working fluid is directed axially through a flow path symmetrically distributed within an annulus formed between the module housing and the stator housing. The stator housing can be cooled by the working fluid, or by a cooling fluid flowing between passages of the flow path. The flow path can extend over substantially a full length and rear surface of the stator housing. A plurality of the modules can be combined into a multi-stage apparatus, with rotor speeds independently controlled by corresponding variable frequency drives. Embodiments include guide vanes and/or diffusers. The rotor can be fixed to a rotating shaft, or rotate about a fixed shaft.

Classes IPC  ?

• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
• H02K 5/167 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des paliers à contact lisse ou des chapeaux de palier sphériques
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes
• H02K 9/193 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens de remplissage de l'agent de refroidissementDispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens pour empêcher les fuites de l'agent de refroidissement
• H02K 7/08 - Association structurelle avec des paliers

Abrégé

Systems and methods to determine the apparent density of a fluid being displaced by a pump. The apparent density may be determined by comparing an expected torque of the pump to an actual torque of the pump. The apparent density can also be used to detect irregular operating conditions.

Classes IPC  ?

• F04D 15/00 - Commande, p. ex. régulation de pompes, d'installations ou de systèmes de pompage
• G01N 9/32 - Recherche du poids spécifique ou de la densité des matériauxAnalyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p. ex. l'écoulement à travers des tubes ou des ouvertures

Abrégé

The decoking control valve includes a piston, a cylinder, and a hydraulic rod seal at the outlet ports. The piston can move translational inside the cylinder along a fixed direction. The cylinder houses the hydraulic rod seal in a groove of the cylinder that places the hydraulic rod seal next to the piston. The hydraulic rod seal has a seal ring in contact with the piston, and the seal rings are activated. As the piston translates within the cylinder, the seal ring will activate at one outlet port and allow fluid to flow out of another outlet port.

Classes IPC  ?

• F16K 3/34 - Dispositions pour modifier la façon dont le débit varie pendant le fonctionnement du tiroir
• F16K 3/316 - Guidage de la partie coulissante
• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• F16K 47/08 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour diminuer la pression, l'organe régulateur étant distinct de l'élément de fermeture
• F16K 3/24 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique
• F16K 11/07 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement à glissières cylindriques
• F16J 15/3208 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre pourvue d’éléments de tension, p. ex. de bagues élastiques
• F16K 3/26 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique le passage du fluide se faisant par le corps du tiroir
• F16K 11/02 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout

Abrégé

An apparatus for raising and lowering a cutting tool within a decoking drum, a decoking system and a method of raising and lowering a decoking system cutting tool. Instead of using metallic ropes, chains, or a self-propelled gear-based approach, non-metallic belts are secured at respective ends to a crosshead and one or more counterweights to enable vertical movement of the crosshead that in turn permits vertical movement of the cutting tool throughout the height of the drum. A motorized pulley system controls the movement of the belt, and preferably avoids having the motor be carried by the crosshead. The belts on each pulley are preferably arranged as cooperative sets so that within each set, both primary load belts and secondary load belts are present. Enhanced engagement between at least the primary load belts and the pulleys promotes greater load-bearing capability, while the secondary load belts are sufficiently strong to ensure positional stability of the crosshead and decoking tool upon damage to or failure of one or more of the primary load belts.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• F16G 1/28 - Courroies de transmission avec une surface de contact de forme particulière, p. ex. à dents
• F16G 1/10 - Courroies de transmission en caoutchouc avec renforcements liés par le caoutchouc ces renforcements étant faits de textile
• B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
• F16H 19/00 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini
• F16H 55/17 - Roues dentées
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations

Abrégé

A clamshell half of a split ring mechanical seal face assembly comprises a split seal ring half having circumferential and proximal surfaces that are seated against corresponding radial and axial support surfaces of a holder half. At least one extending member extends from a hole in the proximal surface to an arcuate slot in the axial support surface, or vice-versa, and thereby radially constrains the split seal ring half to remain unitized with the holder half during clamshell assembly, while permitting rotation of the split seal ring half about a shaft axis over a limited range, which in embodiments is between 2 degrees and 20 degrees. Embodiments further include a secondary seal between the holder half and split seal ring half that frictionally resists displacement of the split seal ring half.

Classes IPC  ?

• F16J 15/18 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par presse-étoupes pour garnitures élastiques ou plastiques
• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties

Abrégé

A high temperature secondary seal between a rotating seal face adaptor sleeve and a rotating shaft does not consume additional axial space beyond the axial space occupied by the secondary seal. The seal includes a single ring drive collar comprising a plurality of radial directed bolts in tapped holes. As the bolts are tightened they enter a cylindrical cavity in the drive collar and impact therein a sloped surface of a crush ring. The vertical force thereby applied to the crush ring displaces the crush ring axially into a secondary graphite sealing element, thereby crushing the secondary sealing element against the adaptor sleeve and shaft, and forming a seal there between. The crush ring sloped surface can terminate in a vertical face, so that upon sufficient displacement of the crush ring the bolts abut the vertical face and impact the shaft, fixing the drive collar to the shaft.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F16J 15/48 - Joints d'étanchéité par bague de garniture dilatée ou comprimée dans son logement par pression d'un fluide, p. ex. garnitures gonflables la pression provenant de celle existant dans l'organe à isoler

Abrégé

A sensing apparatus measures the disk tilt angle of a swing or tilting disk check valve without requiring penetration of the valve housing through a rotating shaft seal. A hinge pin extension is rotationally coupled to the valve disk, and a mechanical converter converts rotation thereof into translation of a magnet carrier within a non-magnetic extension of the valve housing. An LVDT core magnet is translated by the magnet carrier within the housing extension while surrounded by LVDT sensor coils mounted to the exterior of the housing extension. The LVDT core magnet and sensor coils thereby provide an LVDT output signal that indicates the tip angle of the valve disk. Embodiments include threaded coupling of the hinge pin extension to the magnet carrier, or coupling therebetween by a converter pin fixed to one of them into angled helical slot of a cylinder fixed to the other of them.

Classes IPC  ?

• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
• F16K 15/03 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés et élément de fermeture à charnière
• F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage

Abrégé

Valve seats may include an insert and an outer housing. The insert may comprise a first material and the outer housing may comprise a second material. Valve assemblies and related method may include valve seats.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 25/00 - Détails constitutifs relatifs au contact entre corps de soupapes ou de clapets et leurs sièges

Abrégé

A target volume evacuation system includes a turbo compressor and a vacuum pump, the system being operable in a first configuration to reduce the target volume pressure from ambient to a first intermediate pressure, e.g. between 200 mbar and 50 mbar, and in a second configuration to further reduce the pressure from a second intermediate pressure, e.g. 10 mBar, to a target partial vacuum, e.g. between 0.1 and 1 mbar. The turbo compressor can be driven electrically or by fuel combustion, and can be a conventional or modified turbojet engine. A plurality of turbo compressors can be transitioned from parallel to series operation. The pressure can be reduced from the first to the second intermediate pressure by venting the target volume to a boom-tank volume and/or by configuring the turbo compressor system to provide backing to the vacuum pumping system. The invention is applicable to a hyperloop transport system.

Classes IPC  ?

• F04D 19/04 - Pompes multiétagées spécialement adaptées pour réaliser un vide poussé, p. ex. pompes moléculaires
• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles
• F04C 25/02 - Adaptations de pompes pour utilisation spéciale pour les fluides compressibles pour produire un vide élevé

Abrégé

Valve and related assemblies, systems, and methods may include a self-cleaning feature that may be configured to at least partially displace material from a portion of the valve. Such valves may be utilized in a pressure exchanger.

Classes IPC  ?

• F16K 25/00 - Détails constitutifs relatifs au contact entre corps de soupapes ou de clapets et leurs sièges
• E21B 34/00 - Aménagements des vannes pour les trous de forage ou pour les puits
• F04F 13/00 - Échangeurs de pression

Abrégé

Devices and systems for exchanging properties between at least two fluid streams and related methods may include a valve device comprising a valve actuator configured to move at variable rates in order to selectively fill and empty at least one tank. Devices for exchanging properties between at least two fluid streams may include a valve device comprising staggered and overlapping openings positioned along a path of a valve actuator. The staggered and overlapping openings may be configured to selectively and gradually place an inlet in communication with at least one tank.

Classes IPC  ?

• E21B 34/00 - Aménagements des vannes pour les trous de forage ou pour les puits
• F04F 13/00 - Échangeurs de pression

Abrégé

Pressure exchange devices, systems, and related methods may include a tank, a piston, a valve device, and one or more sensors for monitoring a position of the piston in the tank.

Classes IPC  ?

• F04F 13/00 - Échangeurs de pression

Abrégé

Pressure exchange devices and related systems may include a valve device configured to selectively place a fluid at a first higher pressure in communication with another fluid at a lower pressure in order to pressurize the another fluid to a second higher pressure. Methods of exchanging pressure between at least two fluid streams may include a pressure exchanger having two low pressure inlets.

Classes IPC  ?

• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• F04F 13/00 - Échangeurs de pression

Abrégé

Devices for exchanging properties, such as pressure, between at least two fluid streams and related methods may include pistons coupled to a valve stem. The valve stem and valve body may be configured to define a primary seal between the one or more pistons and the valve body and a secondary seal between the one or more pistons and the valve body.

Classes IPC  ?

• F04F 13/00 - Échangeurs de pression
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures

Abrégé

Pistons and related methods may be configured to separate fluids and to at least partially prohibit one fluid from traveling to one side of the piston from another side of the piston. Pressure exchange devices and systems may include such pistons.

Classes IPC  ?

• F04F 13/00 - Échangeurs de pression
• F15B 3/00 - Amplificateurs ou convertisseurs de pression de fluide, p. ex. échangeurs de pressionTransmission de la pression d'un système à fluide à un autre, sans contact entre les fluides

Abrégé

An electronically controlled, motor-driven device is able to issue locally perceptible acoustic alerts by causing the electric motor to vibrate, which in embodiments can include vibrations at a resonant frequency of the device. Embodiments encode information relevant to the alert as amplitude and/or frequency modulations of the acoustic vibrational alerts. The motor can be an AC motor or a DC motor. In embodiments, the motor-driven device is an electronically controlled valve actuator or electronically controlled pump. The device can be in communication with a remote monitoring station, or the electronic controller can be remotely located.

Classes IPC  ?

• G08B 21/18 - Alarmes de situation
• H02P 25/032 - Moteurs à mouvement alternatif, oscillant ou vibrant
• F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur

Abrégé

An electronic controller of a valve actuator predictively calculates motor inputs that will cause the actuator to apply desired forces or torques to a valve. A force/torque sensor of the actuator measures applied force or torque at the motor output and/or valve to verify the applied force or torque and enable updating of calibration settings as needed. Upon failure of the force/torque sensor, embodiments continue predictive operation without sensor verification or calibration updates. Upon failure of the predictive control, embodiments continue valve actuation under reactive control via the force/torque sensor. Connection to a calibration valve simulator enables embodiments to perform an initial self-calibration using the force/torque sensor of the actuator. The motor can be a variable frequency driven AC motor or a DC motor. The calibration can incorporate mechanical properties of an actuator gear train.

Classes IPC  ?

• F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme

Abrégé

A near field energized electronic valve actuator includes a power receiver that enables powering of control electronics using wireless RF energy received from an external device such as a laptop computer or smart cellular telephone handset when conventional power is unavailable to the actuator, thereby enabling exchange of data between the external device and the control electronics. Embodiments further enable data exchange between the control electronics and non-volatile memory during the wireless energization. The data can be exchanged, for example, during initial configuration of the actuator before customer delivery, during an unpowered maintenance period to retrieve operational log information stored by the control electronics, and/or to retrieve valve position information measured by a position sensor and/or fault-relevant data from the actuator when power has been interrupted due to an actuator or valve failure.

Classes IPC  ?

• F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques
• F16K 27/00 - Structures des logementsMatériaux utilisés à cet effet
• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 35/00 - Dispositions empêchant la mise en action accidentelle ou non autorisée

Abrégé

A secondary seal of a mechanical seal comprises an annular sealing gasket and backing plate surrounding a cylindrical sealing surface, which all can be made of the same metallic material. The gasket is C-shaped in cross section, and is axially pressed during operation into a C-shaped groove formed in the backing plate that is shallower and larger in inner diameter than the gasket, whereby the gasket, when pressed into the groove, deforms radially inward and seals against both the backing plate and the sealing surface. The contact area between the gasket and sealing surface increases with pressure. In embodiments, when the pressure is released, the gasket retracts from the sealing surface, enabling easy disassembly and allowing axial movement of the gasket and backing plate. Highly polished surfaces of the gasket and sealing surface can allow axial motion thereof during operation to maintain the seal face gap.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F16J 15/54 - Autres joints pour arbres rotatifs

Abrégé

Valve stem packing assemblies and related methods may include at least one end ring and at least one sealing ring. The at least one end ring may include an inner ring and an outer ring. Valves include a valve body, a valve stem, and a valve stem packing assembly.

Classes IPC  ?

• F16K 41/04 - Joints d'étanchéité pour tiges avec un presse-étoupe avec une bague au moins, en caoutchouc ou d'un matériau analogue, entre la tige et son logement
• F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre
• F16K 31/44 - Moyens mécaniques d'actionnement

Abrégé

A bulkhead passthrough connector containing a printed circuit board (PCB) for transferring electrical signals across a bulkhead to an electronic valve actuator, an electronic valve actuator configured to operate and communicate with a valve using a PCB through a bulkhead, the electronic valve actuator, and a method of assembling a bulkhead passthrough connector incorporating a PCB. The embodiments may include a passthrough partition which separates one side of the bulkhead from another. A PCB retainer may also be secured to the passthrough partition. The PCB is attached to the PCB retainer and extends from one side to another side of the bulkhead through the passthrough partition. The PCB further includes electrical paths printed on the PCB and electrical connectors located on both sides of the bulkhead to enable communication with external devices.

Classes IPC  ?

• H01R 13/436 - Fixation de plusieurs pièces de contact par une seule pièce de verrouillage
• H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
• H02G 15/013 - Moyens d'étanchéité pour entrées de câble
• H05K 1/02 - Circuits imprimés Détails
• F16L 5/08 - Scellement au moyen de vis axiales comprimant une bague ou un manchon

Abrégé

A bulkhead passthrough connector containing a printed circuit board (PCB) for transferring electrical signals across a bulkhead to an electronic valve actuator, an electronic valve actuator configured to operate and communicate with a valve using a PCB through a bulkhead, the electronic valve actuator, and a method of assembling a bulkhead passthrough connector incorporating a PCB. The embodiments may include a passthrough partition which separates one side of the bulkhead from another. A PCB retainer may also be secured to the passthrough partition. The PCB is attached to the PCB retainer and extends from one side to another side of the bulkhead through the passthrough partition. The PCB further includes electrical paths printed on the PCB and electrical connectors located on both sides of the bulkhead to enable communication with external devices.

Classes IPC  ?

• H05K 5/06 - Enveloppes scellées hermétiquement

Abrégé

Heat exchangers include at least one looped tube having at least one section that is laterally offset from another section of the looped tube. Fluid cooling systems and seal systems may include such heat exchangers.

Abrégé

Positioner assemblies may be configured to sense at least one position of at least a portion of a valve assembly that is moved along a first axis of movement. A movable element of the positioner assembly is configured to rotate about a second axis of movement, where the first axis of movement is substantially parallel to the second axis of movement. Valve systems and methods of sensing a position of a component of a valve system may include such a positioner assembly

Classes IPC  ?

• G05D 7/06 - Commande de débits caractérisée par l'utilisation de moyens électriques
• F16K 31/00 - Moyens de fonctionnementDispositifs de retour à la position de repos

Abrégé

A valve positioner monitors a valve stem position by remotely sensing a magnet attached to a coupler shaft that does not penetrate a sealed enclosure surrounding the positioner. A torsion spring, which can be helical or spiral, concentrically surrounds the shaft and is fixed to the shaft and frictionally coupled to a fixed surface by a clutch ring that coaxially surrounds the spring and is vertically pressed against the fixed surface. The torsion spring thereby suppresses backlash, vibration, and chatter by maintaining a torsional force on the shaft. The clutch ring can include a notch or slot cooperative with a key tab rotationally fixed to the coupler shaft so as to limit a range of rotation of the coupler shaft. The positioner is rendered compact by the concentric arrangement of its elements, so that embodiments can be used in place of legacy positioners.

Classes IPC  ?

• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 5/10 - Dispositifs pour le réglage additionnel du débit

Abrégé

An integral motor pump module directs at least 90% of its rotor discharge over at least 50% of its motor housing surface, thereby cooling the motor with little or no need for a separate flow path. The discharge can flow through an annulus formed between the motor and pump housings, and can extend over substantially all of the sides and rear of the motor housing. The rotor can be fixed to a rotating shaft, or rotate about a fixed shaft, which can be threaded into the motor and/or module housing. A plurality of the modules can be combined into a multi-stage pump, with rotor speeds independently controlled by corresponding variable frequency drives. The motor can be a radial or axial permanent magnet or induction motor. A separate cooling flow can provide additional cooling e.g. when pumping heated process fluids. Embodiments include guide vanes and/or diffusers.

Classes IPC  ?

• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 1/06 - Pompes multiétagées
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 29/04 - Arbres, paliers ou leurs assemblages
• F04D 15/00 - Commande, p. ex. régulation de pompes, d'installations ou de systèmes de pompage

Abrégé

A capacitance measuring apparatus and method detects gas/liquid and liquid/gas transitions by monitoring a sensing capacitor having a gap in fluid communication with a monitored volume. The capacitor electrodes can be any arrangement that does not obstruct drainage, such as parallel plates or concentric cylinders. Embodiments have smooth and/or low wetting surfaces. Detection thresholds are automatically set to account for remnant drops and coatings of liquid, and can be automatically readjusted if additional liquid drains or a different liquid is introduced. Embodiments include an insulating layer to prevent conduction through a conductive liquid. A second capacitor can be included in series and/or the insulating layer can create a second virtual capacitor in series with the sensing capacitor gap to provide high sensitivity at low capacitance. The sensing capacitor can be combined in a cluster with a pressure sensor and/or temperature sensor.

Classes IPC  ?

• G01N 27/22 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la capacité
• G01N 27/30 - Électrodes, p. ex. électrodes pour testsDemi-cellules

Abrégé

An axial thrust balancing mechanism for a rotating shaft apparatus such as a rotary pump provides self-regulating thrust compensation while avoiding contact and wear between rotating and static elements. A rotor fixed to the shaft includes a cylindrical male section proximal to but not extending within a cylindrical female section of a non-rotating stator, such that a gap formed therebetween is varied in width by axial thrust shaft displacements. Pressurized fluid within the female section applies a thrust-compensating force to the rotor that is controlled by the gap size. The female section is larger in diameter than the male section, preventing any contact therebetween. The disclosed mechanism can be combined with a thrust-compensating drum to reduce the thrust to a residual level that can be regulated. The rotor and stator can be stepwise varied to provide a plurality of gaps and intermediate chambers therebetween.

Classes IPC  ?

• F04D 29/041 - Équilibrage des poussées axiales
• F04D 1/06 - Pompes multiétagées
• F04D 29/22 - Rotors spécialement pour les pompes centrifuges

Abrégé

A fluid jet nozzle for a decoking tool, a decoking tool and method of operating same. The nozzle includes a nozzle assembly for use in a fluid jet decoking tool. The assembly includes a housing to hold one or more nozzles that are used to spray or otherwise distribute decoking fluid. An internal flowpath that extends from an inlet of the nozzle to an outlet of the nozzle defines a tapered shape such that when the decoking fluid passes through the nozzle, the flowpath produces a predominantly coherent flow pattern in the fluid.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke

Abrégé

A shockwave-inducing mechanical rotating shaft seal includes a seal face gap having at least one section of converging and then diverging gap width that supersonically accelerates compressible fluid escaping through the seal gap, thereby causing a shockwave that reduces the fluid pressure and provides a high pressure fluid seal with significantly reduced viscous heating and gap width. A plurality of the converging-diverging sections can be provided, having a combined width between 0.004 and 0.008 inches. The converging-diverging sections can be configured to accelerate the fluid to a Mach number less than 4. The gap can further include a section of flat, parallel seal faces that induce viscous stresses in the fluid, thereby further reducing the fluid pressure. The seal can be configured with axially directed seal faces or radially directed seal faces, and/or used as a pre-conditioner in combination with a conventional downstream mechanical fluid seal.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F16J 15/32 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques

Abrégé

A compact, energy efficient air cooling system for a rotating shaft bearing module includes a Coanda surface having a periphery that smoothly curves from a radial center to axial alignment with a side of the module. A fan blade mounted on the shaft directs an airflow radially parallel and adjacent to the Coanda surface, causing the airflow to be bent by the Coanda effect from radial to axial, and to be directed along the side of the housing. Embodiments that can be applied to existing housings include a Coanda panel adjacent to the housing end face. A double suction fan blade can draw both external air and air from between the panel and the housing. In other embodiments the housing end face itself is a Coanda surface. A fan cover can have an inwardly curved periphery that forms a reduced gap or nozzle with the Coanda surface.

Classes IPC  ?

• F16C 37/00 - Refroidissement des paliers

Abrégé

An improved rotor or stator split ring seal assembly includes a flexible ring-advancing mechanism that advances at least one of the split ring halves radially inward, so that during assembly the split ring halves meet before adjacent elastomeric members, thereby preventing the elastomeric members from expanding between the seal ring halves and interfering with their alignment. The ring-advancing mechanism is flexed as the seal is assembled, thereby allowing the ring halves to be seated in the housing. The ring-advancing mechanism can be removable after assembly or internal to the seal. In various embodiments, the ring-advancing mechanism is a flexible bracket, a coil spring, or a vertical or horizontal leaf spring. Separate, identical ring-advancing mechanisms can be included with each of the housing halves so as to advance the split ring halves symmetrically.

Classes IPC  ?

• F16J 15/28 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par presse-étoupes pour bagues d'étanchéité rigides les bagues d'étanchéité étant en métal
• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties

Abrégé

A split seal ring having end faces that self-align in both the axial and radial directions is prepared by forming an opposing first pair of angled grooves extending from an inner edge partway across the seal ring inner diameter, and a second pair of angled grooves extending from the inner edge partway across the seal ring rear surface. In embodiments, corresponding grooves meet to form V- shapes. Additional grooves can extend from the outer edge partway across the inner diameter. Corresponding grooves extending from the outer and inner edges on the inner diameter can terminate at locations that are offset radially and/or angularly. By applying an outward force, the seal ring is split at the groove locations into split ring sections having mating end faces. The resulting end face geometry is sufficiently complex to cause both radial and axial realignment as the seal ring halves are mated together.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F04D 29/12 - Joints d'étanchéité pour arbre utilisant des bagues

Abrégé

A valve assembly includes a valve body having a seat-retainer chamber with a floating seat ring disposed adjacent an inner sidewall of the seat-retainer chamber. The floating seat ring is configured to contact a first portion of a plug head at a single annular location prior to a second portion of the plug head contacting a valve primary seat during a closing stroke of the plug head. A static seal is located radially between the floating seat ring and the inner sidewall of the seat-retainer chamber.

Classes IPC  ?

• F16K 1/42 - Sièges de soupapes
• F16K 1/46 - Fixation des segments d'étanchéité
• F16J 15/18 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par presse-étoupes pour garnitures élastiques ou plastiques

Abrégé

A dry running mechanical seal is able to form a direct contact seal for extended periods at both low and high rotational speeds without undue heating or wear of the seal faces. A rear surface of the stator face and corresponding surface of a mounting plate are both lapped for maximum direct contact transfer of heat. Air from a region surrounding the shaft is circulated through a cooling annulus directly behind the stator face and out through exit ports. In embodiments, enlarged scallops or other features on the rotor seal face enhance air turbulence near the seal faces. In various embodiments a surface supporting a dynamic gasket is polished smooth, thereby reducing gasket drag, minimizing the required pressing force between the seal faces, and reducing frictional heating. In embodiments, the rotor seal face shape is optimized to minimize pressure distortions at high pressure.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre

Abrégé

An apparatus for raising and lowering a cutting tool within a decoking drum, a decoking system and a method of raising and lowering a decoking system cutting tool. Instead of using metallic ropes, chains, or a self-propelled gear-based approach, non-metallic belts are secured at respective ends to a crosshead and one or more counterweights to enable vertical movement of the crosshead that in turn permits vertical movement of the cutting tool throughout the height of the drum. A motorized pulley system controls the movement of the belt, and preferably avoids having the motor be carried by the crosshead. The belts on each pulley are preferably arranged as cooperative sets so that within each set, both primary load belts and secondary load belts are present. Enhanced engagement between at least the primary load belts and the pulleys promotes greater load-bearing capability, while the secondary load belts are sufficiently strong to ensure positional stability of the crosshead and decoking tool upon damage to or failure of one or more of the primary load belts.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• F16G 1/28 - Courroies de transmission avec une surface de contact de forme particulière, p. ex. à dents
• F16G 1/10 - Courroies de transmission en caoutchouc avec renforcements liés par le caoutchouc ces renforcements étant faits de textile
• B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
• F16H 19/00 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini
• F16H 55/17 - Roues dentées
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations

Abrégé

A permanent magnet submersible motor for electric submersible pump systems and a method of making the rotor of such a motor. The unitary construction of the rotor shaft and the yoke provides improved protection of the damage-prone magnets, while the larger effective shaft diameter also improves shaft bending resistance. Shaped form closures on the yoke promote secure magnet retention, even under highly centrifugal loads, while an exterior cladding tube and a cast resin filler material are used to further secure the magnets around the yoke periphery while also providing hermetic sealing against a working fluid.

Classes IPC  ?

• F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
• F04D 13/10 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée adaptés pour l'utilisation dans les forages de mine
• H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor

Abrégé

Overheating of a process liquid retained in a reservoir of a multiphase pump during extended gas slugs is avoided by circulating a cooling liquid in thermal contact with a process liquid through an external cooling apparatus, which can include a heat exchanger. In some embodiments, process liquid from the reservoir is circulated through the cooling loop, while in other embodiments a separate cooling liquid is circulated between a reservoir heat exchanger and the external cooling apparatus. The liquid in the cooling loop can be circulated by a separate cooling pump, or process liquid can be circulated through the cooling loop due to a pressure differential between an inlet and an outlet of the cooling loop within the multiphase pump. The multiphase pump can be a twin screw pump, and the reservoir can be formed between outer and inner casings of the multiphase pump.

Classes IPC  ?

• F04C 2/107 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés du type à axe interne, l'organe externe ayant plus de dents ou de parties équivalentes de prise, p. ex. de rouleaux, que l'organe interne avec des dents hélicoïdales
• F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes
• F04C 15/06 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement

Abrégé

An apparatus and method prevent entrained solids from entering a pump by directing a process stream through an active upstream filter that removes the solids, and then through a downstream idle filter where the process stream purges the filter of previously retained solids. The flow path is periodically switched to exchange the roles of the filters, so that none of the filters is saturated, and the solids remain in the process flow but bypass the pump. Any need for a low pressure destination for purged solids and purging fluid and/or any environmental impact of dumping process fluid and solids into the environment is thereby avoided. Partially opened valves can be used to divert only part of the downstream flow for filter purging. Selectable paths can be included for which no filters are purged. The downstream flow can be divided and used to simultaneously purge a plurality of idle filters.

Classes IPC  ?

• F04C 13/00 - Adaptations des "machines" ou pompes pour utilisation particulière, p. ex. pour très hautes compressions
• F04C 2/16 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 15/06 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement

Abrégé

A valve includes a valve body having a fluid flow path extending therethrough, a valve seat located in the valve body, and a valve disc located in the fluid flow path of the valve body. The disc is rotatable between a fully open position and an intermediate position about an axis substantially perpendicular to a longitudinal axis of the disc. The disc is also translatable between the intermediate position and a fully closed position in a direction substantially parallel to the longitudinal axis of the disc. Such a valve may be incorporated into a fluid line of a fluid system.

Classes IPC  ?

• F16K 1/22 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation traverse le corps de soupape, p. ex. régulateurs à papillon
• F16K 1/226 - Forme ou disposition du joint d'étanchéité
• F16K 1/36 - Corps de soupapes
• F16K 1/42 - Sièges de soupapes
• F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage

Abrégé

The decoking control valve includes a piston,
a cylinder, and a hydraulic rod seal at the outlet ports. The
piston can move translational inside the cylinder along a
fixed direction. The cylinder houses the hydraulic rod seal in
a groove of the cylinder that places the hydraulic rod seal
next to the piston. The hydraulic rod seal has a seal ring in
contact with the piston, and the seal rings are activated. As
the piston translates within the cylinder, the seal ring will
activate at one outlet port and allow fluid to flow out of another
outlet port.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• C10B 33/12 - Vannes de décharge
• F16K 3/22 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution
• F16K 3/24 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique
• F16K 3/316 - Guidage de la partie coulissante

Abrégé

The decoking control valve includes a piston, a cylinder, and a hydraulic rod seal at the outlet ports. The piston can move translational inside the cylinder along a fixed direction. The cylinder houses the hydraulic rod seal in a groove of the cylinder that places the hydraulic rod seal next to the piston. The hydraulic rod seal has a seal ring in contact with the piston, and the seal rings are activated. As the piston translates within the cylinder, the seal ring will activate at one outlet port and allow fluid to flow out of another outlet port.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• C10B 33/12 - Vannes de décharge
• F16K 3/22 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution
• F16K 3/24 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique
• F16K 3/316 - Guidage de la partie coulissante

Abrégé

A parallel slide gate valve includes a valve body comprising an interior surface, and an obturator therein. A portion of the interior surface defines a groove having a longitudinal axis oriented substantially peipendicular to a direction of flow through the valve body. The groove has a first width at a first end proximate to the fluid flow path and a second width at a second end distal from the fluid flow path, the second width smaller than the first width. The obturator is at least partially within the at least one groove. The obturator is configured to translate from the first end of the at least one groove toward the second end of the at least one groove as the obturator moves from a closed position to an open position.

Classes IPC  ?

• F16K 3/02 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation planesGarnitures d'étanchéité à cet effet
• F16K 3/314 - Formes ou structures de la partie coulissanteSa fixation sur sa tige
• F16K 27/04 - Structures des logementsMatériaux utilisés à cet effet des tiroirs

Abrégé

A centrifugal pump with a rotating impeller and a rotating diffuser. The diffuser may be rotated with a controlled speed to broaden the operational range of the pump. Such control may be done independently of the rotational speed of the impeller to tailor pump operation to a particular NPSH, efficiency, fluid flow or related requirement. In one preferred form, the impeller and diffuser are made to counter-rotate relative to one another, while the independent rotational speed of each may be provided by one or more motors, as well as a variable-speed transmission coupled to such motor or motors. Such a pump is optimized for specific speed operating ranges beneath those associated with axial flow pump configurations.

Classes IPC  ?

• 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
• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• H02K 16/00 - Machines avec plus d'un rotor ou d'un stator
• F04D 1/00 - Pompes à flux radial, p. ex. pompes centrifugesPompes hélicocentrifuges
• F04D 29/22 - Rotors spécialement pour les pompes centrifuges
• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité

Abrégé

A method of operating a nuclear reactor includes operating a valve actuator to open and close a valve in fluid communication with a nuclear reactor fluid control system. The valve actuator includes a motor having windings of magnet wire. The magnet wire includes a layer of insulating material disposed over a conductor. The layer of insulating material comprises polyetheretherketone (PEEK) and has a thickness between about 0.025 mm and about 0.381 mm. A method of replacing a valve actuator motor with such a motor having windings formed of PEEK-insulated magnet wire is also disclosed. A method of coupling a valve actuator with such a motor having windings formed of PEEK-insulated magnet wire to a valve is also disclosed.

Classes IPC  ?

• H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p. ex. isolement d'encoches
• F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
• G21C 9/00 - Dispositions pour la protection d'urgence structurellement associées avec le réacteur
• G21C 15/18 - Dispositions pour le refroidissement d'urgenceMise hors circuit de la chaleur

Abrégé

An adjustable trunnion valve includes an obturator, a valve stem, at least one valve seal, and a trunnion. The trunnion and obturator are configured to translate the obturator along a longitudinal axis extending through the trunnion and the obturator upon rotation of the valve stem beyond one or both of its open position and its closed position. A method of operating an adjustable trunnion valve having an obturator coupled to a trunnion and a valve stem includes passing a fluid through the adjustable trunnion valve and rotating the valve stem to rotate the obturator about an axis of rotation and to simultaneously translate the obturator in a direction along the axis of rotation while the obturator is supported by the trunnion and while the fluid flows through the adjustable trunnion valve.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 5/08 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif Détails
• F16K 27/06 - Structures des logementsMatériaux utilisés à cet effet des robinets ou des vannes

Abrégé

A bearing isolator seal provides enhanced coupling and stability of the rotor to the shaft, without undue seal enlargement, by including a plurality of drive O-rings in a common retention groove. In embodiments, the isolator seal accommodates axial rotor misalignment up to a maximum permitted axial misalignment, which can be at least 0.025". Embodiments include a labyrinth passage between the rotor and the stator configured to expel fluid by centrifugal force. Embodiments include a shut off feature that takes advantage of axial misalignment. Some embodiments include a unitization feature that holds the rotor and stator together during assembly. The unitization feature can include chamfers on rotor and stator extensions that facilitate assembly and disassembly when sufficient force is applied.

Classes IPC  ?

• F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre
• F16J 15/447 - Garnitures à labyrinthe
• F16C 33/76 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux
• F16C 33/80 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux à labyrinthes

Abrégé

A bearing isolator seal having a shut off O-ring is tolerant of axial rotor-stator misalignment and provides an enhanced static seal while minimizing rotational wear. A tapered section of the stator is overlapped by the shut off O-ring. When the rotor is static there is no axial misalignment, and the shut off O-ring is pressed against the tapered section, forming an enhanced seal. During rotor rotation, increased axial misalignment moves the O-ring away from the tapered section, reducing rotational wear. The stator can extend horizontally beyond the tapered section and below the O-ring, so that if the rotor moves beyond a maximum misalignment, there is a "line on line" fit between the stator and rotor. The bearing isolator seal can include labyrinth technology, and the tapered section can include a contour that allows the shutoff O-ring to drag along the surface of the tapered section with no hang-ups or binding.

Classes IPC  ?

• F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre
• F16J 15/447 - Garnitures à labyrinthe

Abrégé

An apparatus for raising and lowering a cutting tool within a decoking drum, a decoking system and a method of raising and lowering a decoking system cutting tool. Instead of using metallic ropes, chains, or a self-propelled gear-based approach, non-metallic belts are secured at respective ends to a crosshead and one or more counterweights to enable vertical movement of the crosshead that in turn permits vertical movement of the cutting tool throughout the height of the drum. A motorized pulley system controls the movement of the belt, and preferably avoids having the motor be carried by the crosshead. The belts on each pulley are preferably arranged as cooperative sets so that within each set, both primary load belts and secondary load belts are present. Enhanced engagement between at least the primary load belts and the pulleys promotes greater load-bearing capability, while the secondary load belts are sufficiently strong to ensure positional stability of the crosshead and decoking tool upon damage to or failure of one or more of the primary load belts.

Classes IPC  ?

• B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations
• B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations

Abrégé

Valve systems include at least one component comprising a conductive material and at least one inductance-to-digital converter (LDC) sensor configured to wirelessly sense at least one property of the conductive material and relay a value associated with the at least one property to a control system of the valve system. Methods of sensing a position of a component of a valve system include wirelessly sensing at least one property of a conductive material of the component of the valve system with at least one inductance to-digital converter (LDC) sensor.

Classes IPC  ?

• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 31/00 - Moyens de fonctionnementDispositifs de retour à la position de repos
• G01D 5/12 - 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

Abrégé

Valve systems include at least one component comprising a conductive material and at least one inductance-to-digital converter (LDC) configured to wirelessly sense a position of at least a portion of the conductive material. The valve system is configured to determine at least one force applied to a portion of the valve system based at least partially on the position of the at least a portion of the conductive material. Methods of determining a force associated with a valve system include wirelessly sensing a position of at least a portion of the conductive material with the at least one inductance-to-digital converter (LDC) sensor and determining a force applied to a portion of the valve system based at least partially on the position of the at least a portion of the conductive material.

Classes IPC  ?

• F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
• F16K 31/53 - Moyens mécaniques d'actionnement à engrenage

Abrégé

An assembly made up of a pump, a container and an augmented fluid-recirculating system for increased working fluid agitation, and a method of agitating a liquid within a container—as well as dispensing such a liquid from the container—where the liquid has been subjected to such augmented agitation prior to such dispensing. The pump cooperates with the fluid-recirculating system that includes an eductor such that the liquid resident within the container may be recirculated in a manner to promote its own agitation. In addition, air or a related fluid may be passively introduced upstream of the pump such that it also may pass through the eductor. In one form, the assembly defines a closed-loop system such that the air or other gas already present in the container may be introduced selectively, while in another form, the assembly defines an open-loop system that retrieves air from a local external environment. In either case, the introduction of such air or related gas may be selective, thereby permitting an operator to dictate if such air should be recirculated. In addition, the use of a diaphragm pump helps avoid damage to the portions of the pump that are exposed to a mixed phase fluid flow made up of the air and recirculated liquid.

Classes IPC  ?

• B01F 5/12 - Mélangeurs à pompe
• F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p. ex. des diaphragmes
• B01F 5/02 - Mélangeurs à jet
• B01F 5/10 - Mélangeurs à circulation
• B01F 13/02 - Mélangeurs à agitation par gaz, p.ex. à tubes d'amenée d'air
• B01F 3/00 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger

Abrégé

An assembly made up of a pump (300), a container and an augmented fluid-recirculating system (400) for increased working fluid agitation, and a method of agitating and dispensing such a liquid. The pump (300) cooperates with the fluid-recirculating system (400) that includes an eductor (450) such that the liquid resident within the container may be recirculated. In addition, air or a related fluid may be passively introduced such that it also may pass through the eductor (450). In one form, the assembly defines a closed-loop system, while in another form the assembly defines an open-loop system. In either case, the introduction of such air or related gas may be selectively controlled by a valve. In addition, the use of a diaphragm pump helps avoid damage to the portions of the pump that are exposed to a mixed phase fluid flow made up of the air and recirculated liquid.

Classes IPC  ?

• B01F 5/02 - Mélangeurs à jet
• B01F 5/10 - Mélangeurs à circulation
• B01F 13/02 - Mélangeurs à agitation par gaz, p.ex. à tubes d'amenée d'air

Abrégé

A valve assembly for a diaphragm pump reduces leakage while providing good flow-through by including shaping of the seat and/or the valve that increases the elastic tension between the valve and seat in outer regions of the valve assembly, thereby providing a more optimal tension over the entire valve. In embodiments, outer regions of the seat are more steeply sloped upward than inner regions while the valve is substantially uniform in slope. In other embodiments, valve outer regions are less steeply sloped upward, or more steeply sloped downward, than its inner regions, and the seat is substantially uniform in slope. A vertical cross section of the seat and/or valve can include continuous curvature and/or discrete changes in linear slope. In some embodiments, two linear slopes are included in the vertical cross section of the seat or valve. The pump can be a multi-chamber pump.

Classes IPC  ?

• F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p. ex. des diaphragmes
• F04B 45/04 - Pompes ou installations de pompage, ayant des organes de travail flexibles, spécialement adaptées pour fluides compressibles ayant des organes flexibles du genre plat, p. ex. des diaphragmes
• F04B 49/22 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes par clapets
• F16K 15/14 - Soupapes, clapets ou valves de retenue à corps de soupapes flexibles

Abrégé

A mechanical expelling mechanism for an axial pump system in a loop reactor includes straight or curved repelling vanes mounted to a vertical or tapered rear face of the impellor hub and a tapered wall provided in the adjacent seal housing. In combination, these elements exclude and eject process slurry, especially polymer solids, away from the seals and bearings, and thereby prevent damage to the seals and bearings, at least until a flow of flushing fluid can be restored. The repelling vanes further serve to circulate and exchange any process fluid and catalyst that remains in the space between the impellor and the seals, so that localized warming and run-away formation of polymer solids near the seals is avoided. The repelling vanes can be curved or straight. In embodiments, the repelling vanes reduce pump efficiency by less than 1%.

Classes IPC  ?

• F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p. ex. des diaphragmes
• F04B 53/10 - ClapetsAgencement des clapets

Abrégé

Valve seats include a flexible arm portion configured to seal against a portion of a valve body of a valve. A ball valve may include such valve seats. Methods of forming a seal in a ball valve include forcing a first metal valve seat into sealing contact with a first end cap and a ball valve member with a first metal flexible arm member and forcing a second metal valve seat into sealing contact with a second end cap and the ball valve member with a second metal flexible arm member.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 5/08 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif Détails
• F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre