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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2108. Отображено 100.
06-09-2012 дата публикации

Pump

Номер: US20120224961A1
Автор: Tobias Albert, Wolfgang Weber
Принадлежит: EGO Elektro Geratebau GmbH

A pump for a dishwasher has an impeller for conveying fluid, wherein it is formed as a centrifugal pump with the fluid to be conveyed being sucked-in in a central axial manner and flowing out in a radial manner. The impeller extends on a bottom surface above a pump base, wherein several fixed flow directing blades are arranged radially outside the impeller, said flow directing blades extending in a helicoidal manner with the pitch extending in the rotational direction of the impeller away from the pump base. At least one flow directing blade extends as far as up to the bottom surface of the impeller for picking up a circulating funnel or tube produced of fluid with air bubbles therein.

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Номер записи: 1
17-01-2013 дата публикации

Rotary Pump with Spiral Casing

Номер: US20130017077A1
Автор: Enno Hanisch, Reinhard Hembrock
Принадлежит: Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik

A rotary pump has a pump housing enclosing a flow space and provided with an intake opening and a discharge opening, wherein the intake opening and the discharge opening are connected to each other by the flow space. An impeller wheel is disposed in the flow space and is driven in rotation. An expansion body is provided that is fluidically connected to the flow space. A spiral casing surrounds, in a mounted position in the pump housing, an outer circumference of the impeller wheel, wherein the spiral casing is a single-part or multi-part shaped component and is embodied separate from the pump housing.

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Номер записи: 2
18-04-2013 дата публикации

BLOWER DEVICE

Номер: US20130094954A1
Автор: Ishii Shinji, Nagao Mitsuhisa
Принадлежит:

A blower device includes a centrifugal fan rotor arranged to blow-out indrawn air in a direction orthogonal to an indrawing direction, and a motor arranged to rotate the centrifugal fan rotor. The centrithgal fan rotor has a motor cover in proximity to an external peripheral surface of the motor. Openings are provided at a lower part of the motor cover and a motor-cooling air passage is formed such that some of the air blown out from the centrifugal fan rotor is led to a motor-surrounding space formed between the centrifugal fan rotor and the motor and then is discharged through the openings. 1. A blower device comprising:a centrifugal fan rotor arranged to blow out indrawn air in a direction orthogonal to an indrawing direction; anda motor arranged to rotate the centrifugal fan rotor,the centrifugal fan rotor having a motor cover in proximity to an external peripheral surface of the motor, andopenings being provided at a lower part of the motor cover and a motor-cooling air passage being formed such that some of the air blown out from the centrifugal fan rotor is led to a motor-surrounding space formed between the centrifugal fan rotor and the motor and then is discharged through the openings.2. The blower device according to claim 1 , whereinthe openings are disposed over 0 to 45% of a height dimension of the centrifugal fan rotor relative to an end section of the centrifugal fan rotor on a non-indrawing side, the height dimension being oriented in a direction of a rotating shaft.3. The blower device according to claim 2 , whereinan area of the motor cover occupied by the openings constitutes 60 to 80% of an area of a portion of the motor cover disposed over 0 to 45% of the height dimension of the centrifugal fan rotor.4. The blower device according to claim 2 , whereinthe openings are disposed over 0 to 25% of the height dimension of the centrifugal fan rotor.5. The blower device according to claim 1 , whereinthe motor cover includes an inclined surface inclined ...

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Номер записи: 3
09-05-2013 дата публикации

BLOOD PUMP INCLUDING A ROTOR

Номер: US20130115070A1
Автор: Baumgartner Robert, Henseler Andreas, Mattern Benjamin
Принадлежит: MEDOS MEDIZINTECHNIK AG

A blood pump includes a rotor mounted in a pump housing via a bearing. The housing includes a metal rod extending from the outer wall of the housing towards the inner side of the housing. The rod allows dissipating heat and has a stabilising action. 118.-. (canceled)19. A blood pump , comprising:a pump housing, said pump housing comprising a housing wall, and having a tapered housing shaping;a tapered metal rod arranged in the tapered housing shaping and extending from the housing wall towards an inside of the housing; anda rotor mounted in the pump housing via a bearing.20. The blood pump of claim 19 , wherein the rotor has blades in surrounding relationship with the tapered housing shaping.21. The blood pump of claim 20 , wherein the tapered housing shaping extends over an entire length of the blades.22. The blood pump of claim 19 , wherein a diameter of the rotor is less than 30 mm.23. The blood pump of claim 19 , wherein the diameter of the rotor is less than 28 mm.24. The blood pump of claim 19 , further comprising a rotor cover disc claim 19 , said rotor cover disc having a diameter of less than 32 mm.25. The blood pump of claim 24 , wherein the rotor cover disc has a diameter of less than 30 mm.26. The blood pump of claim 19 , wherein the rotor has a weight of less than 10 g.27. The blood pump of claim 26 , wherein the rotor has a weight of less than 8.5 g.28. The blood pump of claim 19 , wherein the housing wall comprises a radially outer portion and a portion extending radially inwardly to the radially outer portion so as to form a motor mount claim 19 , wherein the motor mount is form fittingly connected with the radially outer portion via a closure claim 19 , and wherein an annular gap is formed between the radially outer portion and the motor mount.29. The blood pump of claim 19 , wherein the rotor comprises at least one coupling magnet for contactlessly transferring a torque from a motor to the rotor.30. The blood pump of claim 19 , wherein the rotor ...

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Номер записи: 4
16-05-2013 дата публикации

Centrifugal Pump

Номер: US20130121817A1
Автор: BOEHM Alexander, BOSBACH Franz, KELLER Christoph, VAN GELDERN Maike, WEITEN Andreas
Принадлежит: KSB Aktiengesellschaft

A centrifugal pump including a rotor and a housing surrounding the rotor, the housing having a connection on the pressure side and another on the intake side, respectively. The housing surrounding the rotor is constructed as a composite part in which a first thin-walled layer () defines the inner configuration of the housing, and at least one second layer () provides structural stability to the housing. 1. A centrifugal pump comprising a rotor and a casing surrounding said rotor , said casing having respective delivery-side and suction-side connections , wherein the casing surrounding the rotor is constructed as a composite part with a first layer which determines the internal shape of the casing and at least one second layer which provides structural stability to the casing.2. The centrifugal pump as claimed in claim 1 , wherein the first layer is formed from a corrosion-resistant metal or a fiber-reinforced plastic.3. The centrifugal pump as claimed in claim 1 , wherein the first layer is composed of a plurality of individual segments which together constitute the casing shape.4. The centrifugal pump as claimed in claim 1 , wherein the first layer is formed from an elastomer.5. The centrifugal pump as claimed in claims 1 , wherein the space within the first layer can be shaped by being filled with a medium under pressure.6. The centrifugal pump as claimed in claim 5 , wherein further comprising a valve installed in the first layer claim 5 , and wherein said valve and holds and indicates the pressure of the medium.7. The centrifugal pump as claimed in claim 5 , wherein said pump comprises an indicator which indicates both the pressure of the medium and the configuration or consequent operating point of the casing.8. The centrifugal pump as claimed in claim 5 , wherein a propellant is provided which provides the medium under pressure required for filling the first layer.9. The centrifugal pump as claimed in claim 1 , wherein the first layer is connected in a ...

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Номер записи: 5
16-05-2013 дата публикации

CENTRIFUGAL PUMP APPARATUS

Номер: US20130121821A1
Автор: Ozaki Takayoshi, Sugiura Ken, Suzuki Kenichi, Yamada Hiroyuki
Принадлежит:

This centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a first permanent magnet provided in one surface of the impeller, and a second permanent magnet provided in an inner wall of the blood chamber, for attracting the first permanent magnet. The attractive force between the first permanent magnet and the second permanent magnet on the opening side of a sidewall of the blood chamber is set to be smaller than the attractive force between the first permanent magnet and the second permanent magnet on the opposite side of the opening. As a result, inclination of the impeller with respect to a dividing wall during pump operation can be prevented. 1. A centrifugal pump apparatus including a housing having first and second chambers partitioned from each other by a dividing wall , an impeller rotatably provided in said first chamber along said dividing wall , for delivering fluid by centrifugal force during rotation , and a drive unit provided in said second chamber , for driving said impeller to rotate with said dividing wall being interposed , the centrifugal pump apparatus comprising:a first magnetic element provided in one surface of said impeller;a second magnetic element provided in an inner wall of said first chamber facing the one surface of said impeller, for attracting said first magnetic element;a third magnetic element provided in the other surface of said impeller and attracted by said drive unit; anda fluid outlet port for allowing said fluid to flow to the outside of said housing from an opening provided in a sidewall of said first chamber, whereinduring rotation of said impeller, first attractive force acting on between said first and second magnetic elements and second attractive force acting on between said third magnetic element and said drive unit are balanced with each other substantially in a center of a movable range of said impeller in said first chamber,a first groove for hydrodynamic bearing is formed in the one ...

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Номер записи: 6
06-06-2013 дата публикации

Pumping Device

Номер: US20130142616A1
Автор: Smith Andrew
Принадлежит:

A pump is disclosed, with a casing comprising a substantially circular body having at least two radial inlets, at least one peripheral outlet and a transversal aperture. The casing further comprises a substantially circular impeller mounted within the body for rotation about the aperture. The impeller has a substantially uninterrupted sinusoidal profile. A pumping system and a method of pumping are also disclosed, which use the pump configuration. 1. A casing for a pump comprising:a circular body having at least two radial inlets, at least one peripheral outlet and at least one transversal aperture,a substantially circular impeller mounted within the body for rotation about the aperture,wherein the impeller has a substantially sinusoidal profile.2. The casing according to claim 1 , wherein a main axis of the peripheral outlet is offset relative to the diameter of the body.3. The casing according to claim 2 , wherein the main axis of the peripheral outlet is not tangential relative to the body periphery.4. The casing according to claim 1 , wherein the body comprises two opposed sides and wherein each inlet is located on a respective side of the pump body.5. The casing according to claim 4 , wherein at least two peripheral outlets are transversally aligned with one another.6. The casing according to claim 4 , wherein at least two peripheral outlets are transversally offset relative to one another.7. The casing according to claim 1 , wherein the body is made of a substantially non-resilient material.8. The casing according to claim 7 , wherein the body is made of a substantially metallic material claim 7 , which is impervious to corrosion9. The casing according to claim 8 , wherein the body is made of is made of a Chromium Titanium alloy.10. The casing according to claim 1 , wherein the body comprises two sections releasably attached to one another.11. The casing according to claim 10 , wherein the transversal aperture is central relative to the body claim 10 , each ...

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Номер записи: 7
20-06-2013 дата публикации

DUAL-FLOW CENTRIFUGAL PUMP

Номер: US20130156545A1
Автор: Britsch Manfred
Принадлежит: ALLWEILER GMBH

A double-flow centrifugal pump is disclosed, in which, using an impeller, a fluid can be suctioned from two axial sides from a negative pressure area and can be delivered in the radial direction into a positive pressure area. The negative pressure area is sealed off with respect to the positive pressure area by at least one stationary pump component, for example the pump housing and/or an insert part. According to the invention, sealing gaps are formed as axial gaps arranged axially between the impeller and the pump component and extending in the circumferential direction and in the radial direction, wherein the gap width(s) of said axial gaps is less than the radial spacing (a) of the impeller from all the components arranged with a radial spacing from the impeller. 1. A double-flow centrifugal pump for delivering a flow rate in a range from 500 m/h to 4000 m/h , the pump positioned in a vertical orientation , and having a pump housing and a dual-flow impeller rotationally fixedly arranged on a rotationally driven shaft , with which impeller a fluid can be suctioned drawn from two axial sides from a negative pressure area and delivered in the radial direction into a positive pressure area ,wherein the negative pressure area is sealed off with respect to the positive pressure area by at least two axially spaced sealing gaps formed between the impeller and at least one stationary pump component, the at least one stationary pump component comprising at least one of the pump housing and a stationary insert, andwherein the shaft is mounted only on one side, and the sealing gaps comprise as axial gaps extending in the circumferential direction as well as in the radial direction and arranged axially between the impeller and the at least one stationary pump component, the gap width of which is less than the radial distance of the impeller to all components that are arranged at a radial distance to the impeller.2. The centrifugal pump according to claim 1 , wherein the gap ...

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Номер записи: 8
27-06-2013 дата публикации

EXHAUST PUMP

Номер: US20130164124A1
Автор: Maejima Yasushi, Ohtachi Yoshinobu, Takaada Tsutomu
Принадлежит: EDWARDS JAPAN LIMITED

Provided is an exhaust pump that is suitable for enhancing durability, processability of connecting opening portions in a pump production stage, and evacuation performance. An exhaust pump includes: a cylindrical rotating member; a support unit of the cylindrical rotating member; a driving unit for rotationally driving the cylindrical rotating member; an outer cylindrical fixed member disposed so as to surround the outer periphery of the cylindrical rotating member; an inner cylindrical fixed member disposed so as to be surrounded by the inner periphery of the cylindrical rotating member; a helical outer thread groove exhaust passage provided between the cylindrical rotating member and the outer cylindrical fixed member; a helical inner thread groove exhaust passage provided between the cylindrical rotating member and the inner cylindrical fixed member; connecting opening portions that are opened in the cylindrical rotating member and that lead a part of gas existing in the vicinity of the outer periphery of the cylindrical rotating member towards the inner thread groove exhaust passage. A gap between an upstream end of the connecting opening portions and lowermost stage rotor blades provided at the outer periphery of the cylindrical rotating member which is located upstream of the connecting opening portions has a dimension equal to or greater than a dimension that enables insertion, into the gap, of a tool for opening the connecting opening portions. 1. A exhaust pump , comprising:a cylindrical rotating member;support means for rotatably supporting said cylindrical rotating member about an axis thereof;a driving means for rotationally driving said cylindrical rotating member;an outer cylindrical fixed member disposed so as to surround the outer periphery of said cylindrical rotating member;an inner cylindrical fixed member disposed so as to be surrounded by an inner periphery of said cylindrical rotating member;a helical outer thread groove exhaust passage ...

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Номер записи: 9
27-06-2013 дата публикации

CENTRIFUGAL PUMP

Номер: US20130164125A1
Автор: MIKKELSEN Steen
Принадлежит: Grundfos Holding A/S

A centrifugal pump () includes at least one pump stage () and a first housing part () having a suction connection (). A second housing part () has a pressure connection (). At least one intermediate housing part () at least in sections delimits a channel () leading to a pressure side of the at least one pump stage (). The pump further includes a third housing part (). The second housing part () and the at least one intermediate housing part () are arranged between the first and the third housing part (). The at least one intermediate housing part () and the second housing part () are configured to be arranged in at least two different positions with respect to the first and the third housing (). 11. A centrifugal pump () comprising:{'b': '2', 'at least one pump stage ();'}{'b': 3', '5, 'a first housing part () having a suction connection ();'}{'b': 6', '7', '10', '11', '2, 'a second housing part () having a pressure connection (), at least one intermediate housing part () which at least in sections delimits a channel () leading to a pressure side of the at least one pump stage (); and'}{'b': '20', 'a third housing part (),'}{'b': 6', '10', '3', '20, 'wherein the second housing part () and the at least one intermediate housing part () are arranged between the first and the third housing parts (, ), and'}{'b': 10', '6', '3', '20, 'wherein the at least one intermediate housing part () and the second housing part () are configured to be arranged in at least two different positions with respect to the first and the third housing parts (, ).'}2110623. The centrifugal pump () according to claim 1 , wherein the at least one intermediate housing part () and the second housing part () are configured to be arranged in at least two different longitudinal positions with respect to an impeller axis () of the pump.31101127. The centrifugal pump () according to claim 1 , wherein the at least one intermediate housing part () has an essentially hollow-cylindrical shape and on an ...

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Номер записи: 10
04-07-2013 дата публикации

Peripheral pump

Номер: US20130170971A1
Автор: Mischiatti Adriano, Mischiatti Antonio, Mischiatti Massimo
Принадлежит: M PUMPS S.R.L.

The invention is a peripheral pump () comprising a pump body () with drive shaft () and external magnet (), a pump shaft () with an impeller () and an internal magnet () suited to be set in motion by said external magnet (), and one volute () suited to house said impeller () comprising two half-volutes () suited to be joined to each other and to directly support said pump shaft (), and wherein on said pump body () there is at least one cover () suited to keep said half-volutes () joined and closed. 1. A peripheral pump , single or multi-stage , comprising:a pump body with drive shaft and at least one external magnet fitted on said drive shaft;a pump shaft with at least one impeller installed on said pump shaft;at least one internal magnet suited to be set in motion by said external magnet and fitted on said pump shaft; anda volute suited to house said impeller,wherein said volute comprises at least two half-volutes suited to be joined to each other and to directly support said pump shaft, andwherein on said pump body there is at least one cover suited to keep said half-volutes joined and closed.2. The peripheral pump according to claim 1 , further comprising at least one of an elastic element claim 1 , an axial spring claim 1 , or a static ring between said cover and said pump body.3. The peripheral pump according claim 1 , wherein a group or cartridge formed by said pump shaft claim 1 , said internal magnet claim 1 , said impeller claim 1 , and said half-volutes is installed on said pump body in a sliding and removable manner using one or more anti-rotation pins or keys claim 1 , through shrinking-on or mechanical locking claim 1 , in order to prevent a mutual rotation of at least said half-volutes.4. The peripheral pump according to claim 1 , further comprising one pair of supporting jackets interposed between said pump shaft and said half-volutes.5. The peripheral pump according to claim 1 , wherein each one of said half-volutes supports said pump shaft directly ...

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Номер записи: 11
22-08-2013 дата публикации

WATER PUMP IN VEHICLE

Номер: US20130216355A1
Автор: LEE Ki Chul, PARK Seok Ryul, SHIM Ki Chang
Принадлежит: KAMTEC INC.

The present invention relates to a water pump in a vehicle. 1. A water pump in a vehicle comprising:a pump cover which forms an upper side exterior appearance of the pump for housing an impeller to be rotated;a hollow rotor coupled on the same axis with the impeller to rotate altogether; anda housing coupled to the pump cover to house the rotor and a stator therein,wherein the pump cover includes a first rotation shaft extended toward the hollow in the rotor passed through the impeller,the housing includes a second rotation shaft extended toward the hollow in the rotor,the first rotation shaft has a communication hole formed therein to be in communication with the hollow, andthe rotor has a communication passage recessed in a lower end portion thereof to a predetermined depth.2. The water pump as claimed in claim 1 , wherein the communication passage is formed adjacent to the second rotation shaft.3. The water pump as claimed in claim 2 , wherein the communication passage is plural arranged spaced from one another.4. The water pump as claimed in claim 3 , wherein the communication passage is four arranged at 90 degree intervals.5. The water pump as claimed in claim 1 , wherein the communication passage is tapered such that the communication passage becomes the deeper as the communication passage goes toward an underside of the rotor the more.6. The water pump as claimed in claim 5 , wherein the communication passage includes a moderately curved surface.7. The water pump as claimed in claim 1 , further comprising an ancillary impeller on a side of the impeller facing the rotor for applying a pressure to water to move the water.8. The water pump as claimed in claim 1 , wherein the first rotation shaft and the second rotation shaft have the same rotation axis.9. The water pump as claimed in claim 1 , wherein the first rotation shaft is directed to one end of the hollow in the rotor claim 1 , and the second rotation shaft is directed to the other end of the hollow in ...

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Номер записи: 12
29-08-2013 дата публикации

SIMPLIFIED VARIABLE GEOMETRY TURBOCHARGER WITH INCREASED FLOW RANGE

Номер: US20130219885A1
Автор: Grabowska David G., Watson John P.
Принадлежит: BORGWARNER INC.

A variable geometry turbocharger is simplified yet able to maintain pulse energy. In a first embodiment, a turbine housing is provided with a pivoting flow control valve which pivots about a point near the entry to the turbine housing. By moving the valve about the pivot point, the effective volume of the turbine housing volute is varied, thus effectively reducing the volume of exhaust gas in the volute, allowing control of exhaust gas flowing to the turbine wheel. In the second embodiment of the invention, a rotating wedge segment within the volute is rotated from a first position to a second position, changing the effective volume of the volute and allowing control of exhaust gas flowing to the turbine wheel. 1. A variable flow turbocharger comprising:{'b': 2', '51', '52, '(a) a turbine housing () having a turbine inlet portion at a turbine housing foot () for coupling to an exhaust manifold for receiving exhaust gas flow, a turbine exducer portion () and a volute chamber between the turbine housing foot and the exducer portion;'}{'b': '70', '(b) a turbine impeller () having a multiplicity of blades located within said turbine housing for receiving exhaust gas flow from the volute chamber;'}{'b': 48', '49, '(c) at least one volute divider wall to divide the volute chamber into a larger volute chamber () and a smaller volute chamber (); and'}(d) exhaust flow control valve means adapted to control the degree of blockage of exhaust gases flowing into the larger volute chamber.2. The variable flow turbocharger according to claim 1 , wherein said exhaust flow control valve means is variably adjustable.3. The variable flow turbocharger according to claim 1 , wherein said volute divider wall includes openings through which exhaust flow can pass between the larger and smaller volute chambers.4. The variable flow turbocharger according to claim 1 , wherein said divider wall is an axial divider wall.5. The variable flow turbocharger according to claim 1 , wherein said ...

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Номер записи: 13
26-09-2013 дата публикации

Centrifugal Pump and Method of Manufacturing Centrifugal Pump

Номер: US20130251516A1
Автор: Kumano Koko, Tanaka Shotaro
Принадлежит: TERUMO KABUSHIKI KAISHA

A centrifugal blood pump reliably prevents blood from entering between an impeller and a shaft member. Pump includes a pump chamber , a housing including a blood inlet and a blood outlet , an impeller as a centrifugal force applying member rotatably encased in the pump chamber and applying a centrifugal force to the blood Q by the rotation of the impeller . A support mechanism supports impeller rotatably with respect to the housing . The support mechanism includes a rod-shaped shaft member disposed at the rotation center of the impeller . Shaft member and the impeller are formed integrally with each other, as by insert molding. 1. A centrifugal pump comprising:a housing comprised of a hollow body having a blood inlet and a blood outlet, wherein the blood inlet communicates with a chamber of the hollow body for an inflow of blood, and wherein the blood outlet communicates with the chamber for an outflow of blood;a centrifugal impeller rotatably mounted within the chamber for applying a centrifugal force to the blood in the chamber by rotation of the centrifugal impeller, wherein the centrifugal impeller is comprised of a material having a first hardness; anda support mechanism rotatably supporting the centrifugal impeller with respect to the housing, wherein the support mechanism includes a shaft member disposed within the centrifugal impeller along a center rotation axis of the centrifugal impeller, wherein the shaft member is comprised of a material having a second hardness greater than the first hardness;wherein the centrifugal impeller is integrally formed on the shaft member so that there is no interposing gap between the shaft member and the centrifugal impeller into which any blood can enter.2. The centrifugal pump according to claim 1 , wherein the shaft member and the centrifugal impeller are formed integrally with each other by insert molding.3. The centrifugal pump according to claim 2 , wherein the centrifugal impeller is comprised of a spacer member ...

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Номер записи: 14
24-10-2013 дата публикации

OIL PUMP

Номер: US20130280041A1
Автор: Chiba Noriaki, Kumamoto Masato, Naiki Takehiko
Принадлежит: Mikuni Corporation

An oil pump including an upstream pump unit including an upstream inner rotor and an upstream outer rotor; a downstream pump unit including a downstream inner rotor and a downstream outer rotor as being arranged adjacently to the upstream pump unit in a predetermined axis line direction; a rotary shaft concurrently rotating the upstream inner rotor and the downstream inner rotor; and a housing which contains the upstream pump unit and the downstream pump unit as supporting the rotary shaft and which includes an inlet port for sucking oil from the outside into the upstream pump unit, an ejection port for ejecting a part thereof to the outside in a pressurization process of the upstream pump unit, a communication port for providing communication between the upstream pump unit and the downstream pump unit, and a discharge port for discharging oil from the downstream pump unit to the outside. 1. An oil pump , comprising:an upstream pump unit which includes an upstream inner rotor and an upstream outer rotor;a downstream pump unit which includes a downstream inner rotor and a downstream outer rotor, the downstream inner rotor and the downstream outer rotor being arranged adjacently to the upstream pump unit in a predetermined axis line direction;a rotary shaft which concurrently rotates the upstream inner rotor and the downstream inner rotor; anda housing which contains the upstream pump unit and the downstream pump unit and supports the rotary shaft, the housing including an inlet port configured to suck oil from the outside into the upstream pump unit, an ejection port configured to eject a part of the sucked oil to the outside in a pressurization process of the upstream pump unit, a communication port which provides communication between the upstream pump unit and the downstream pump unit, and a discharge port configured to discharge oil from the downstream pump unit to the outside.2. The oil pump according to claim 1 , wherein the upstream pump unit is configured to ...

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Номер записи: 15
24-10-2013 дата публикации

DOUBLE-ENDED BLOWER AND VOLUTES THEREFOR

Номер: US20130280055A1
Автор: DALY Geoffrey D., Fu Timothy Tsun-Fai, LEA Stephen A., MARTIN Dion Charles C., Puckeridge Larry, REED Nicholas J., VIRR Alexander
Принадлежит: RESMED LIMITED

A variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise. 1. A double-ended blower for a CPAP/NIPPV apparatus comprising: a motor supporting opposed first and second shaft ends aligned along an axis; a first impeller on the first shaft end , axially between a first endcap and a first plate , said first impeller having a first air intake; a second impeller on the second shaft end , axially between a second endcap and a second plate , the second impeller having a second air intake positioned between the first and second impellers; a casing supporting the motor , said casing closed at opposite ends by said first and second endcaps; and a channel adjacent to the motor for guiding a gas from the first impeller to the second impeller , wherein said channel is defined in part by a spiral path from the first impeller to the second impeller.2. A double-ended blower as claimed in claim 1 , wherein the casing includes first and second halves bisected along a plane parallel to said axis.3. A double-ended blower as claimed in claim 1 , wherein an internal surface of the casing at least partially defines said channel.4. A double-ended blower as claimed in claim 3 , wherein said internal surface of said casing is formed adjacent a motor stator of said motor so as to define said channel between said motor stator and said internal surface.5. A double-ended blower as claimed in claim 1 , further comprising a damping sleeve within said casing.6. A double-ended blower as claimed in claim 5 , wherein said damping sleeve includes separable first and second halves that claim 5 , when combined claim 5 , define at least part of said channel.7. A double ...

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Номер записи: 16
05-12-2013 дата публикации

FUEL PUMP

Номер: US20130323024A1
Автор: OOTA Yuuichirou, SAKAI Hiromi
Принадлежит:

A fuel pump includes a pump cover on one side of a housing, a cover end portion on the other side of the housing, a stator inside the housing, a rotor inside the stator, a shaft rotatable with the rotor, an impeller rotatable with the shaft to pressurize fuel inside the housing, a bearing portion provided in the cover end portion on its center axis to slidably support an end part of the shaft, and a relief valve capable of reducing a fuel pressure inside the housing. The cover end portion has an end surface located on its side opposite from the pump cover, and the relief valve includes a valve seat located on an opposite side of the end surface of the cover end portion from the pump cover. 1. A fuel pump comprising:a housing having a hollow cylindrical shape;a pump cover closing an end opening of the housing on a first side of the housing in an axial direction of the housing, the pump cover including a suction portion;a cover end portion having a circular plate shape to close the other end opening of the housing on a second side of the housing in the axial direction of the housing, the cover end portion including a press-fit part that is located on an outer rim of the cover end portion to be press-fitted to an inner side of the housing;a stator having a hollow cylindrical shape, the stator being accommodated inside the housing and including a plurality of wound wires;a rotor rotatably provided inside the stator;a shaft provided coaxially with the rotor to rotate together with the rotor;an impeller connected to one end of the shaft, wherein the impeller rotates together with the shaft to draw a fuel through the suction portion and pressurize the drawn fuel;a bearing portion provided in the cover end portion on a center axis of the cover end portion to slidably support the other end of the shaft;a discharge portion provided in the cover end portion to be used as a port through which the fuel pressurized by the impeller is discharged; anda relief valve capable of ...

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Номер записи: 17
12-12-2013 дата публикации

PUMP AND METHOD FOR PRODUCING AN IMPELLER FOR A PUMP

Номер: US20130330170A1
Автор: Albert Tobias
Принадлежит:

In a centrifugal pump for pumping a fluid with central axial suctioning and radial discharging of the fluid to be pumped out of the impeller, the impeller includes an upper cover plate and a lower cover plate and multiple interposed blades therebetween. In the radial inner region, the blades extend essentially parallel to the rotation axis of the impeller in the axial direction of the pump and thus are upright, wherein said blades in the course radially outwards thereof are increasingly inclined or extend oblique. 1. A pump , in particular for home appliances such as dish washers or washing machines , having an impeller for pumping a fluid , wherein said pump is configured together with said impeller for operation as a centrifugal pump , with a central axial suctioning and a radial discharging of said fluid to be pumped out of said impeller , wherein said impeller comprises an upper cover plate and a lower cover plate and multiple interposed blades therebetween , wherein said blades are less steep inclined relative to a central longitudinal axis of said pump in a radial inner region of said impeller than in a radial outer region of said impeller.2. The pump according to claim 1 , wherein said blades in the course thereof are increasingly inclined or extend increasingly oblique from said radial inner region to said radial outer region.3. The pump according to claim 2 , wherein in said radial inner region said blades extend essentially parallel to a rotation axis of said impeller in said axial direction of said pump claim 2 , said blades thus being extending upright.4. The pump according to claim 1 , wherein an inclination of said blades is configured such that said blades are inclined or extend oblique relative to said upper cover plate in a rotation direction of said impeller.5. The pump according to claim 1 , wherein a change of an inclination of said blades is monotonously increasing from said radial inner region of said impeller to said radial outer region of ...

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Номер записи: 18
30-01-2014 дата публикации

APPARATUS, SYSTEM AND METHOD FOR PUMPING GASEOUS FLUID

Номер: US20140030055A1
Автор: Jayaram Shiv, Tetzlaff Steven Keith
Принадлежит: SUMMIT ESP, LLC

An apparatus, system and method for pumping gaseous fluid are described. The centrifugal pump of the invention homogenizes at least a portion of the gas and liquid contained in produced well fluid thereby improving the efficiency of the pump in electric submersible pump (ESP) applications and decreasing the downtime of the ESP system. The impeller of the invention comprises an increased inlet area. The centrifugal pump of the invention comprises a single shroud located on the bottom side of an impeller, an increased inlet area of the impeller and an increased clearance gap between the impeller and a diffuser. One or more truncated vanes extend substantially upstream from the single shroud, wherein each truncated vane sits at a mid-pitch location between untruncated vanes starting from the bottom side of the impeller. 1. An impeller for an electric submersible pump assembly comprising an increased inlet area.2. The impeller of claim 1 , wherein the increased inlet area is between about 1.75 and about 2.5 times an inlet area of a conventional inlet area.3. The impeller of claim 1 , further comprising a single shroud located on a bottom side of an impeller.4. The impeller of claim 3 , wherein the single shroud extends radially about a hub.5. The impeller of claim 3 , further comprising at least two untruncated vanes extending substantially upstream from the single shroud and at least two truncated vanes extending substantially upstream from the single shroud claim 3 , wherein each truncated vane sits at a mid-pitch location between untruncated vanes starting from the bottom side of the impeller.6. The impeller of claim 5 , wherein the truncated vanes are between about 50% and about 75% of a chord length of the untruncated vanes.7. The impeller of claim 5 , wherein the truncated vanes are undivided.8. The impeller of claim 5 , comprising three truncated vanes and three untruncated vanes.9. The impeller of claim 5 , comprising two truncated vanes and two untruncated ...

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Номер записи: 19
06-02-2014 дата публикации

LOW-WEAR SLURRY PUMP

Номер: US20140037440A1
Автор: Frater John, McGahee Ricky
Принадлежит: FLSMIDTH A/S

A centrifugal pump for a slurry combines design changes with respect to conventional configurations that produce quasi-laminar flow and materially extend the life of the casing. The cutwater clearance of the casing is increased to a range of 0.20 to 0.25 times the diameter of the impeller. The casing includes a redesigned removable annular liner with a diameter increased to at least 1.15 times the diameter of the impeller. The pump preferably also has an axially adjustable wear ring with a diameter increased such that it extends by at least 10% over the diameter of the area of interface between the wear ring and the impeller. 1. A centrifugal pump for a slurry comprising:a pump casing defining an impeller region, a volute region, and a corresponding cutwater clearance; andan impeller adapted to rotate within the impeller region, said impeller having a predetermined diameter;wherein the casing comprises a removable annular liner in a suction side of the casing, said liner having a diameter at least 1.15 times said diameter of the impeller; and the cutwater clearance is between 0.20 and 0.25 times said diameter of the impeller.2. The pump of claim 1 , wherein said removable annular liner has a diameter about 1.18 to about 1.22 times said diameter of the impeller.3. The pump of claim 1 , further comprising an axially adjustable wear ring between said annular liner and a suction side of the impeller claim 1 , said ring having a diameter between 10% and 14% larger than a surface of interface between the wear ring and the impeller.4. The pump of claim 1 , further comprising a plurality of raised expelling vanes on a suction side of the impeller claim 1 , said vanes defining a clearance between the vanes and the annular liner greater than a size of a largest solid particle in a particle size distribution of said slurry.5. The pump of claim 1 , further comprising an axially adjustable wear ring between said annular liner and a suction side of the impeller claim 1 , said ...

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Номер записи: 20
07-01-2016 дата публикации

FLUID PROCESSING SYSTEM, AN ENERGY-DISSIPATING DEVICE, AND AN ASSOCIATED METHOD THEREOF

Номер: US20160003255A1
Автор: Corneliussen Jorgen Harald, Friedemann John Daniel
Принадлежит:

An energy-dissipating device and fluid processing system is provided containing a compressor, a motor, a secondary fluid re-circulation loop, a purge line, and a fluid conduit. The compressor is configured to receive a hot fluid including condensable and non-condensable components, and produce therefrom a primary compressed fluid stream and a secondary fluid stream. The motor is configured to drive the compressor and for ingress and egress of the secondary fluid stream. The secondary fluid re-circulation loop is configured to control an operating temperature of the motor. The secondary fluid re-circulation loop includes a first energy-dissipating device configured to remove excess heat from the secondary fluid stream. The purge line separates a first portion of the secondary fluid stream in the fluid re-circulation loop from a second portion of the secondary fluid stream being returned to the motor. The fluid conduit receives the primary compressed fluid stream from the compressor. 1. A fluid processing system comprising:(a) a compressor configured to receive a hot fluid comprising condensable and non-condensable components, and produce therefrom a primary compressed fluid stream and a secondary fluid stream;(b) a motor configured to drive the compressor, the motor being configured for ingress and egress of the secondary fluid stream;(c) a secondary fluid re-circulation loop configured to control an operating temperature of the motor, the secondary fluid re-circulation loop comprising a first energy-dissipating device configured to remove excess heat from the secondary fluid stream;(d) a purge line configured to separate a first portion of the secondary fluid stream in the fluid re-circulation loop from a second portion of the secondary fluid stream being returned to the motor; and(e) a fluid conduit configured to receive the primary compressed fluid stream from the compressor.2. The fluid processing system according to claim 1 , wherein the first energy-dissipating ...

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Номер записи: 21
12-01-2017 дата публикации

FLUID PUMP

Номер: US20170009777A1
Автор: Krug Karl Alexander
Принадлежит: MP Pumps

The present invention relates to a fluid pump having an improved performance. The pump comprises an impeller, volute housing, inner housing geometry, and an adapter. The impeller is configured to generate fluid flow velocity. The volute housing is configured to improve fluid pump performance while reducing power consumption, the volute housing comprises the inner housing geometry. The inner housing geometry is configured to convert the fluid flow velocity that has been generated into pressure. The adapter is designed to protect the unconnected end of the drive shaft and reduce the negative effects of shaft deflection. The adapter also has a structural rib geometry which is configured to provide superior structural integrity at a minimal mass. 1. A fluid pump having an improved performance , said pump comprising: i. a hub profile;', 'ii. an outer diameter;', 'iii. an impeller eye centrally located on said impeller and configured to connect to one end of a drive shaft;', 'iv. a plurality of impeller blades connected to said hub profile and forming a plurality of flow channel areas interposed between two said impeller blades of said plurality of impeller blades; and', 'v. wherein each said flow channel area of said plurality of flow channel areas gradually diverges from said impeller eye to said outer diameter;, 'a. an impeller configured to generate fluid flow velocity, said impeller comprisingb. a volute housing configured to improve fluid pump performance while reducing power consumption, said volute housing having a fluid intake, a fluid discharge, and an inner housing geometry; i. a volute area having a secondary passage and circulation zone;', 'ii. said secondary passage interposed between said volute area and a collection zone, said secondary passage configured to allow volute area fluid reentry during priming and non-reentry after full prime is established;', 'iii. a diffuser located at the periphery of said volute area and configured to alleviate wasted energy ...

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Номер записи: 22
27-01-2022 дата публикации

TURBINE PUMP ASSEMBLY WITH TURBINE EXHAUST COOLED HEAT EXCHANGER FOR ACTIVE HYDRAULIC OIL

Номер: US20220025903A1
Автор: Conroy William T., Himmelmann Richard A.
Принадлежит:

A turbine pump system includes a turbine pump assembly including a housing, a pump located in the housing, a turbine located in the housing and operably connected to the pump, and a heat exchanger located between the pump and a hydraulic fluid load. The heat exchanger is configured to reduce a temperature of a hydraulic fluid flow output by the pump and directed to the hydraulic fluid load. The heat exchanger is operably connected to a turbine gas flow and utilizes the turbine gas flow to cool the hydraulic fluid flow at the heat exchanger. 1. A turbine pump system , comprising: a housing;', 'a pump disposed in the housing;', 'a turbine disposed in the housing and operably connected to the pump; and', 'a heat exchanger disposed between the pump and a hydraulic fluid load, the heat exchanger configured to reduce a temperature of a hydraulic fluid flow output by the pump and directed to the hydraulic fluid load;', 'wherein the heat exchanger is operably connected to a turbine gas flow and utilizes the turbine gas flow to cool the hydraulic fluid flow at the heat exchanger., 'a turbine pump assembly including2. The turbine pump system of claim 1 , further comprising a valve to selectably direct one of the turbine gas flow or the hydraulic fluid flow through the heat exchanger.3. The turbine pump system of claim 2 , further comprising a temperature sensor disposed along a hydraulic fluid flow line between the heat exchanger and the hydraulic fluid load claim 2 , the temperature sensor operably connected to the valve.4. The turbine pump system of claim 2 , further comprising a hydraulic outlet line extending from a pump outlet to the hydraulic fluid load.5. The turbine pump system of claim 4 , wherein the heat exchanger is disposed along the hydraulic outlet line.6. The turbine pump system of claim 4 , further comprising a hydraulic bypass passage extending from the hydraulic outlet line claim 4 , the heat exchanger disposed along the hydraulic bypass passage.7. The ...

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Номер записи: 23
14-01-2016 дата публикации

DRAIN PUMP AND A CLOTHES DRYER HAVING A DRAIN PUMP

Номер: US20160010271A1
Автор: KANG Woocheol, KIM Minseong, KIM Sungjun, Shin Jinhyouk
Принадлежит:

A drain pump and a clothes dryer having a drain pump are provided. The drain pump may include a pump motor; an impeller including a hub, an impeller shaft that extends from a center of the hub and is connected to a rotational shaft of the pump motor, and at least one blade that extends from an outer circumferential surface of the impeller shaft; a housing including an impeller hole, through which the impeller may pass, and a space in which the pump motor may be accommodated; and a pump case coupled to a bottom surface of the housing. The pump case may have a suction hole to suction in cleaning water. The suction hole may be defined at a position corresponding to the impeller, and the pump case may include a shaft shield that extends from an edge of the suction hole in a central direction of the suction hole or toward a central portion of the suction hole to cover a lower end of the impeller shaft. 1. A drain pump , comprising:a pump motor; a hub;', 'an impeller shaft that extends from a center of the hub and is connected to a rotational shaft of the pump motor; and', 'at least one blade that extends from an outer circumferential surface of the impeller shaft;, 'an impeller including an impeller hole, through which the impeller passes; and', 'a space in which the pump motor is accommodated; and', 'a pump case coupled to a bottom surface of the housing, wherein the pump case has a suction hole to suction in cleaning water, wherein the suction hole is defined at a position corresponding to the impeller, and wherein the pump case includes a shaft shield that extends from an edge of the suction hole toward a central portion of the suction hole to cover a lower end of the impeller shaft., 'a housing including2. The drain pump according to claim 1 , further comprising:a pump motor seat stepped from a bottom of the housing, such that the pump motor is seated thereon; anda discharge port that extends from a predetermined position which is spaced apart from the pump motor ...

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Номер записи: 24
15-01-2015 дата публикации

MECHANICAL COOLANT PUMP

Номер: US20150016967A1
Автор: Fournier Arnaud, Georges Pascal, Simon Gilles
Принадлежит: PIERBURG PUMP TECHNOLOGY GMBH

A coolant pump includes an impeller pump wheel, a pump housing defining an outlet volute, and an outlet valve arrangement. The pump housing comprises an outlet volute housing which defines a first outlet channel comprising a valve opening. The valve opening is defined by a valve seat which defines a valve seat plane and a symmetry plane. The symmetry plane is arranged in the middle of and rectangular to the valve seat plane. The outlet valve arrangement is in the first outlet channel and comprises a valve flap which opens/closes the valve opening. The valve flap comprises a flap seat corresponding to the valve seat. The valve flap rotates around a pivot axis parallel to the symmetry plane and having an eccentricity from the symmetry plane which is between 1/20 and 1/1 of a distance of the pivot axis to the valve seat plane when the valve flap is open. 17-. (canceled)8. A mechanical coolant pump for an internal combustion engine , the mechanical coolant pump comprising:an outlet volute;an impeller pump wheel configured to pump an incoming liquid coolant in an axial direction radially into the outlet volute;a pump housing comprising an outlet volute housing which defines a first outlet channel comprising a valve opening, the pump housing being configured to define the outlet volute, the valve opening being defined by and surrounded by a valve seat which defines a valve seat plane and a symmetry plane, the symmetry plane being arranged in the middle of and rectangular to the valve seat plane; andan outlet valve arrangement arranged in the first outlet channel, the outlet valve arrangement comprising a valve flap configured to pivot between an open position and a closed position so as to open or close the valve opening of the first outlet channel;wherein,the valve flap comprises a flap seat configured to correspond to the valve seat, andthe valve flap is configured to rotate around a pivot axis which is parallel to the symmetry plane and which is arranged so as to have ...

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Номер записи: 25
15-01-2015 дата публикации

PUMP HOUSING

Номер: US20150016980A1
Автор: Pedersen Casper, Pedersen Nicholas
Принадлежит:

A pump housing has a spiral housing and includes a suction channel () which runs out in a space (). The space () is for arranging an impeller (), rotatable about a rotation axis (), and includes a spirally peripheral channel () open to the space () and running out into a pressure channel. A receiver () for a differential pressure sensor is provided within the pump housing. A first sensor channel () is provided, which connects the receiver () to a pressure-side interior of the pump housing. A second sensor channel () connects the receiver () to the pressure-side interior of the pump housing. The receiver () for the differential pressure sensor is arranged between the spirally peripheral channel () and the suction channel (), so that the channels can be formed by way of simple bores. 1. A pump housing of the spiral housing construction type , the pump housing comprising:a pressure channel;an impeller space;a suction channel running out into the impeller space, which is designed for arranging an impeller rotatable about a rotation axis, wherein the impeller space comprises a spirally shaped peripheral channel open from a portion of the impeller space and running out into the pressure channel;a receiver for a differential pressure sensor;a first sensor channel which connects the receiver to a suction-side interior of the pump housing; anda second sensor channel which connects the receiver to a pressure-side interior of the pump housing, wherein the receiver for the differential pressure sensor is arranged between the spirally peripheral channel and the suction channel.2. A pump housing according to claim 1 , wherein the sensor channels are formed in each case by bores in the housing.3. A pump housing according to claim 1 , wherein the receiver is formed by a bore in the housing.4. A pump housing according to claim 3 , wherein the second sensor channel runs out transversely to the bore forming the receiver.5. A pump housing according to claim 3 , wherein:the first sensor ...

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Номер записи: 26
15-01-2015 дата публикации

CENTRIFUGAL FLUID MACHINE

Номер: US20150016981A1
Автор: Fukao Shinji, Fukuda Yuya, Ishizaka Koichi, Niu Kenichi, SANO Takeshi
Принадлежит:

A centrifugal fluid machine includes an impeller () that has a front shroud () arranged on one side in an axial direction, a rear shroud () arranged on the other side in the axial direction, and a plurality of blades () provided side by side in a circumferential direction between the front shroud and the rear shroud and is rotatably supported within a casing (); a suction passage (A) that allows a fluid to be sucked therethrough in the axial direction toward the impeller with the rotation of the impeller; a discharge passage (B) that allows a fluid delivered under pressure by the impeller with the rotation of the impeller to be discharged in a direction intersecting the axial direction of the impeller; and a first flow path (A) that communicates with the discharge passage, leads to the suction passage through a gap between the casing and the rear shroud, and an opening (Aa) that opens toward the downstream side of the suction passage in a suction direction of a fluid. The opening area of the opening is set so that the ejection speed (Vs) of a fluid ejected from the opening to the suction passage is matched with the suction speed (V) of a fluid sucked into the suction passage. 1. A centrifugal fluid machine comprising:a casing having a hollow shape;an impeller that is rotatably supported within the casing and has an annular member arranged on one side in an axial direction, a disk member arranged on the other side in the axial direction, and a plurality of blades provided side by side in a circumferential direction between the annular member and the disk member;a suction passage that allows a fluid to be sucked therethrough in the axial direction from the center of the annular member in the impeller with the rotation of the impeller;a discharge passage that allows a fluid delivered under pressure by the impeller with the rotation of the impeller to be discharged in a direction intersecting the axial direction of the impeller; anda flow path that communicates with the ...

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Номер записи: 27
15-01-2015 дата публикации

PUMP UNIT

Номер: US20150017034A1
Автор: JACOBSEN John B., Krog Jens Peter
Принадлежит:

A pump assembly has at least one electronics receiving space (″). The electronics receiving space (″) includes at least one defined ventilation opening (″). The ventilation opening (″), at an outer side of the electronics receiving space (″), runs out into an air duct (′) which is led along at least one condensation surface (″). 1. A pump assembly comprising:an air duct;a condensation surface; andan electronics receiving space comprising at least one defined ventilation opening at an outer side of the electronics receiving space, wherein the ventilation opening runs out into the air duct which is led along the condensation surface.2. A pump assembly according to claim 1 , wherein the air duct comprises an air channel between an outer side of an outer wall of the electronics receiving space and an adjacent component.3. A pump assembly according to claim 1 , wherein the at least one ventilation opening has a cross section which is between three and ten times larger than the total cross section of a remaining leakages of the electronics receiving space.4. A pump assembly according to claim 1 , wherein the electronics receiving space is designed in an essentially sealed manner with the exception of the at least one ventilation opening.5. A pump assembly according to claim 1 , wherein the condensation surface is cooled.6. A pump assembly according to claim 5 , wherein the condensation surface is arranged so as to be cooled by a medium delivered by the pump assembly.7. A pump assembly according to wherein the condensation surface is in thermally conductive connection with a motor housing and/or pump housing of the pump assembly claim 1 , or part of a motor housing and/or pump housing of the pump assembly.8. A pump assembly according to claim 1 , further comprising a fluid channel claim 1 , wherein the condensation surface is in thermally conductive connection with at least one wall delimiting the fluid channel claim 1 , wherein the wall is preferably part of the pump ...

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Номер записи: 28
19-01-2017 дата публикации

AXIAL-FLUX INDUCTION MOTOR PUMP

Номер: US20170016449A1
Автор: Gieras Jacek F., Ribarov Lubomir A.
Принадлежит:

A pump comprises a housing partially defining a cavity, an impeller arranged in cavity, the impeller including a first disk, and a vane arranged on the first disk, the impeller operative to rotate about a rotational axis, a first stator core arranged on the housing, windings arranged on the first stator core, and a first inlet defined by the housing, wherein the first inlet, the impeller, and the housing partially define a fluid flow path. 1. A pump comprising:a housing partially defining a cavity;an impeller arranged in cavity, the impeller including a first disk, and a vane arranged on the first disk, the impeller operative to rotate about a rotational axis;a first stator core arranged on the housing;windings arranged on the first stator core; anda first inlet defined by the housing, wherein the first inlet, the impeller, and the housing partially define a fluid flow path.2. The pump of claim 1 , further comprising a conductive material arranged on a surface of the first disk such that the conductive material is disposed between the first disk and the first stator core such that the conductive material and the first stator core partially define a gap therebetween.3. The pump of claim 1 , wherein further comprising a second stator core arranged on the housing claim 1 , wherein the second stator core is arranged circumferentially about the rotational axis.4. The pump of claim 1 , wherein the first disk includes a ferromagnetic material that is conductive to electric current and magnetic flux.5. The pump of claim 3 , wherein the impeller further includes a second disk arranged such that the vane is disposed between the second disk and the first disk claim 3 , the second disk including a ferromagnetic material that is conductive to electric current and magnetic flux.6. The pump of claim 5 , further comprising a conductive material arranged on a surface of the second disk such that the conductive material is disposed between the second disk and the second stator core ...

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Номер записи: 29
21-01-2016 дата публикации

BEARING ISOLATOR OIL CONTAINMENT CUP

Номер: US20160017890A1
Автор: Cahoon Alex, Keeran Kent H.
Принадлежит:

An oil leak prevention device for use on a pump assembly having a non-contacting bearing isolator. The device has an annular surface having a central opening and a second surface extending from the first surface. The second surface covers an opening of an outside leak path between the rotor and the stator of the bearing isolator when the central opening is placed about the shaft of the pump. A method for preventing the leakage of oil from the pump assembly includes forming an oil containment cup and then placing the oil containment cup in contact with the bearing isolator such that a shaft of the pump assembly passes through the central opening and the second surface of the oil containment cup covers the opening of the leak path. Preferably, the cup is removed from the pump before operation of the pump.

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Номер записи: 30
21-01-2016 дата публикации

Turbomachine

Номер: US20160017891A1
Автор: BENDER Klaus-Werner, KÖPPLER Peter
Принадлежит:

A turbomachine includes a housing and an electric motor in the housing. The electric motor has a shaft, a stator, and a rotor on the shaft. At least one impeller is arranged in a pump housing and driven by the shaft, the impeller having at least one ring of rotor blades delimiting a ring of blade chambers. A side channel is arranged in the pump housing opposite the ring of blade chambers and extends from the pump inlet as far as the pump outlet. A ramp is arranged at an end of the side channel in a radially inner half of the side channel. The ramp starts from a channel bottom, rises in a flow direction as far as the height of the pump housing wall, and merges with its radially outer half into the pump outlet. 16-. (canceled)7. A turbomachine comprising:{'b': '1', 'a housing ();'}{'b': 2', '1, 'claim-text': [{'b': '5', 'a shaft (),'}, {'b': '3', 'a stator (), and'}, {'b': 4', '5, 'a rotor () arranged on the shaft ();'}], 'an electric motor () arranged in the housing (), the electric motor comprising{'b': 7', '8', '9', '16', '10', '9', '13', '14, 'a pump housing () having a pump bottom (), a pump cover (), a pump housing wall () and a spacer ring (), the pump cover () having a pump inlet () and a pump outlet ();'}{'b': 6', '7', '5', '6', '11, 'at least one impeller () arranged in the pump housing () and driven by the shaft (), the at least one impeller () having at least one ring of rotor blades () that delimit a ring of blade chambers;'}{'b': 12', '7', '12', '12', '13', '14, 'a side channel () arranged in the pump housing (), the side channel () being arranged opposite the ring of blade chambers, the side channel () extending from the pump inlet () as far as the pump outlet (); and'}{'b': 15', '12', '18', '12', '15', '17', '16', '12', '19', '14, 'a ramp () arranged at an end of the side channel () in a radially inner half () of the side channel (), said ramp () starting from a channel bottom (), rising in a flow direction as far as the height of the pump housing wall ...

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Номер записи: 31
21-01-2021 дата публикации

ELECTRIC PUMP ASSEMBLY WITH USER-ACCESSIBLE WET SECTION

Номер: US20210018018A1
Автор: CAILOTTO Pietro, CAPPOCCHIN Michele, SINICO Francesco, TRENTIN Enrico
Принадлежит: DAB PUMPS S.P.A.

A centrifugal electric pump assembly, comprising a wet section, which comprises inside it a liquid and/or solid scale remover substance in a position that at least potentially communicates with the wet section. 1. A centrifugal electric pump assembly , comprising a wet section , comprising inside it a liquid and/or solid scale remover substance in a position that at least potentially communicates with said wet section.2. The centrifugal electric pump assembly according to claim 1 , wherein scale remover substance is a tablet.3. The centrifugal electric pump assembly according to claim 1 , wherein said scale remover substance has chelating characteristics with respect to the atoms of the salts contained in the water of said wet section.4. A centrifugal electric pump assembly comprising an electric motor claim 1 , a wet section provided with an intake duct and a delivery duct claim 1 , and an impeller claim 1 , said impeller being keyed on a shaft of said electric motor claim 1 , said electric motor comprising a rotor which is integral with said shaft and a stator contained in a stator receptacle claim 1 , further comprising a scale remover substance between said stator receptacle and said shaft.5. A centrifugal electric pump assembly comprising an electric motor claim 1 , a wet section provided with an intake duct and a delivery duct claim 1 , and an impeller claim 1 , said impeller being keyed on a shaft of said electric motor claim 1 , said electric motor being composed of a stator and a rotor claim 1 , said rotor being integral with said shaft claim 1 , said stator being contained in a receptacle claim 1 , said rotor being comprised between two bushings:a first bushing, arranged proximate to said impeller,a second bushing, arranged opposite said first bushing and located at the end of said shaft that is opposite to the one provided with said impeller,said assembly being further comprising a scale remover substance proximate to said second bushing.6. The electric ...

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Номер записи: 32
26-01-2017 дата публикации

A liquid processing mixer

Номер: US20170021314A1
Автор: Frederik LARSEN
Принадлежит: Tetra Laval Holdings and Finance SA

A mixing unit for mixing a flow of liquid product is provided. The mixing unit comprises a stator forming a hollow sleeve, and a rotor having a circular displacement plate with two opposite sides, wherein at least one side has at least two chambers formed by a plurality of vanes extending in a direction being parallel with a longitudinal axis of the stator, wherein the rotor is arranged within the stator for rotating liquid product arranged in said chambers relative the stator. The displacement plate is tilted relative a longitudinal axis of the stator such that said at least two chambers have different volumes, and a side wall of the stator has at least one exit area comprising at least one through hole for allowing liquid product to exit the stator.

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Номер записи: 33
28-01-2016 дата публикации

CENTRIFUGAL PUMP

Номер: US20160025099A1
Автор: NAKAGAWA Taiki, TAKEDA Tsuyoshi
Принадлежит:

A centrifugal pump includes a rotating blade member including an impeller member and a rotor magnet provided under the impeller member, a metallic main body casing in which the rotating blade member is accommodated, and a coil portion configured to rotate the rotating blade member. The coil portion is disposed to be located in a periphery of the rotor magnet. The metallic main body casing includes an upper main body casing, and a lower main body casing which is fixed to the upper main body casing. The lower main body casing includes a blade accommodating portion, which extends horizontally from an outer periphery of the lower main body casing to an inner periphery side, and a rotor magnet accommodating portion, which extends downwardly from the blade accommodating portion. 1. A centrifugal pump comprising:a rotating blade member including an impeller member and a rotor magnet provided under the impeller member,a metallic main body casing in which the rotating blade member is accommodated, anda coil portion configured to rotate the rotating blade member, wherein the coil portion is disposed to be located in a periphery of the rotor magnet, an upper main body casing, and', 'a lower main body casing which is fixed to the upper main body casing,, 'the metallic main body casing including;'} a blade accommodating portion, which extends horizontally from an outer periphery of the lower main body casing to an inner periphery side, and', 'a rotor magnet accommodating portion, which extends downwardly from the blade accommodating portion., 'the lower main body casing including;'}2. The centrifugal pump of claim 1 , whereinthe lower main body casing includes a metallic press molding article, andthe lower main body casing includes a nonmagnetic metal.3. The centrifugal pump of claim 2 , wherein the nonmagnetic metal includes an austenitic stainless steel.4. The centrifugal pump of claim 3 , wherein the austenitic stainless steel includes 10.5% or more of the content of nickel.5 ...

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Номер записи: 34
02-02-2017 дата публикации

WATER PUMPING SYSTEM FOR ROOFTOP APPLICATIONS AND THE LIKE

Номер: US20170030360A1
Автор: Bryditzki Nicholas, Grubb Dennis Allen
Принадлежит:

Embodiments of the present invention are directed to a water pumping system. More specifically, embodiments of the present invention are directed to a solar electric powered, siphon-capable water pumping systems specifically configured for use in rooftop and other applications having similar need and conditions. Advantageously, a water pumping system configured in accordance with an embodiment of the present invention is configured to prevent pooling of water in low-lying areas of a roof and thereby limits the potential for damage to the roof and underlying structure that could otherwise result from such pooling of the water. 1. A water pumping system , comprising:a water pump;a water level sensing device adapted to output a water presence signal when the water level sensing device detects a pump actuation condition exists; anda power control module electrically coupled to the water pump and the water level sensing device, wherein the power control module causes electrical power to be intermittently outputted to the water pump power for each instance of a prescribed time period during which the water level signal is outputted by the water level sensing device and wherein the power control intermittently outputting electrical power includes the power control module outputting a plurality of pump priming electrical power pulses.2. The water pumping system of wherein:the plurality of pump priming electrical power pulses is followed by at least one siphon-maintaining electrical power pulse; andthe water pump is operable in a non-powered state for causing water to flow through a water flow passage of the water pump by a siphon effect initiated by priming the passage extending between the water inlet of the water pump and the water flow passage as a result of at least one period of electrical power provided to the water pump during said intermittent electrical power output.3. The water pumping system of wherein a duration of each one of the pump priming electrical power ...

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Номер записи: 35
04-02-2016 дата публикации

CENTRIFUGAL PUMP

Номер: US20160032940A1
Автор: AKIYAMA Masahiro, Okabe Kaku, Tsuruda Kouki
Принадлежит:

A centrifugal pump includes an impeller rotatably disposed in a volute case for forcing a fluid to flow along a volute internal flow channel formed in the volute case, and first to fourth flow-channel recessed portions opening to the volute internal flow channel. The first and fourth flow-channel recessed portions are formed so as to be recessed in a direction substantially orthogonal to a direction of flow of the fluid. In a self-priming operation, the fluid is introduced into the first and fourth recessed portions whereupon the prime fluid is stirred within internal spaces of the first and second flow-channel recessed portions. 1. A centrifugal pump comprising:a volute case having a volute internal flow channel formed therein;an impeller rotatably disposed in the volute case for forcing a fluid to flow along the volute internal flow channel; andat least one flow-channel recessed portion opening to the volute internal flow channel and formed so as to be recessed in a direction substantially orthogonal to a direction of flow of the fluid.2. The centrifugal pump according to claim 1 , wherein the flow-channel recessed portion has an opening facing the volute internal flow channel claim 1 , and a peripheral edge defining the opening claim 1 , the peripheral edge having a straight section substantially orthogonal to the direction of flow of the fluid.3. The centrifugal pump according to claim 1 , wherein the flow-channel recessed portion has a part formed to protrude from the volute internal flow channel in a radial outward direction of the impeller.4. The centrifugal pump according to claim 3 , wherein the number of the flow-channel recessed portion is plural claim 3 , and the respective parts of the plural flow-channel recessed portions are set to be successively smaller along the direction of flow of the fluid. The present invention relates to a centrifugal pump configured to force a fluid to flow along a volute internal flow channel upon rotation of an impeller ...

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Номер записи: 36
05-02-2015 дата публикации

COMPRESSOR HOUSING ASSEMBLY FOR A TURBOCHARGER

Номер: US20150037141A1
Автор: Abel Francis, Eumont Vincent, Gerard Arnaud, Roberts Quentin, Van Haesebroeck Baptiste
Принадлежит: HONEYWELL INTERNATIONAL INC.

A compressor housing assembly for a turbocharger can include a compressor housing shell that includes an axis for alignment with a rotational axis of a compressor wheel, a wall that includes features defined in part by radii with respect to the axis, and an edge that defines in part an inlet opening of a shroud port; and an insert that includes a shroud section and a noise suppressor section that define a recirculation port where the insert is axially located by the wall of the compressor housing shell, where an internal recirculation passage is defined in part by the insert and the wall, and where an edge of the shroud section (e.g., a lowermost edge) defines in part the inlet opening of the shroud port. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. 1. A compressor housing assembly for a turbocharger comprising:{'b': 442', '642', '842', '447', '647', '847', '443', '643', '843', '445', '845, 'a compressor housing shell (, , ) that comprises an axis for alignment with a rotational axis of a compressor wheel, a wall (, , ) that comprises features defined in part by radii with respect to the axis, and an edge (, , ) that defines in part an inlet opening of a shroud port (, ); and'}{'b': 402', '702', '804', '450', '750', '850', '470', '770', '870', '475', '775', '875', '402', '702', '804', '447', '647', '847', '442', '642', '842', '455', '855', '402', '702', '804', '447', '647', '847', '451', '771', '871', '450', '750', '850', '445', '845', '451', '771', '871', '402', '702', '804, 'an insert (, , ) that comprises a shroud section (, , ) and a noise suppressor section (, , ) that define a recirculation port (, , ) wherein the insert (, , ) is axially located by the wall (, , ) of the compressor housing shell (, , ), wherein an internal recirculation passage (, ) is defined in part by the insert (, , ) and the wall (, , ), wherein a lower edge (, , ) of the shroud section (, , ) defines in part the inlet opening of the shroud ...

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Номер записи: 37
11-02-2016 дата публикации

Heating Pump

Номер: US20160040686A1
Автор: CHONG Kok Ang, Li Min, WU Jin Jin
Принадлежит:

A heating pump includes a pump housing with an inlet, an outlet, a heater, an impeller, and a motor for driving the impeller. The impeller is received in the pump housing. The heater includes connecting heads and a main body for generating heat. The main body is bent into an arc. The pump housing includes a cylindrical sidewall extending in an axial direction of the motor and a top plate sealed to an axial opening of the sidewall. The top plate is made of metal. The heater extends through and is fixed to the top plate. The connecting heads extend to an exterior of the pump housing. The main body is located in an interior of the pump housing and in contact with the top plate. 1. A heating pump comprising:a pump housing having an inlet, an outlet, a cylindrical sidewall, and a top plate sealingly fixed to an axial opening of the sidewall, the top plate is made of metal;a heater fixed to the pump housing, the heater comprises connecting heads and a main body connected between the connecting heads;an impeller received in the pump housing; anda motor fixed to the pump housing for rotating the impeller,wherein the heater extends through and is fixed to the top plate, the connecting heads extend to an exterior of the pump housing, and the main body of the heater is formed as an arc, is located in an interior of the pump housing and is in contact with the top plate.2. The pump of claim 1 , wherein a cross section of the main body is in the shape of a chamfered rectangle and has four outer surfaces claim 1 , and one of the outer surfaces is in intimate contact with the top plate.3. The pump of claim 2 , wherein the main body is soldered to the top plate.4. The pump of claim 1 , wherein the top plate defines a first hole claim 1 , the inlet comprises a fixing tube and a connecting tube claim 1 , and a first interlock structure is formed between a peripheral area of the first hole of the top plate and one end of the connecting tube to fix the connecting tube to the top plate.5 ...

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Номер записи: 38
09-02-2017 дата публикации

ELECTRICALLY DRIVEN PUMP AND METHOD FOR MANUFACTURING THE SAME

Номер: US20170037855A1
Автор: Huang Zhiping, Yin Bingjiu
Принадлежит: Hangzhou Sanhua Research Institute Co., Ltd.

An electrically driven pump is provided, which includes a rotor assembly. The rotor assembly includes an impeller, a rotor and a shaft sleeve assembly. The impeller is arranged on one end of a shaft sleeve, and the rotor is arranged on another end of the shaft sleeve away from the end on which the impeller is mounted. The rotor includes a rotor core, a permanent magnet and a shield. The permanent magnet is arranged around an outer peripheral surface of the rotor core and fits the outer peripheral surface of the rotor core. The shield is fixed to the shaft sleeve, and an accommodating portion configured to accommodate the rotor core and the permanent magnet is formed between the shield and the shaft sleeve. The electrically driven pump has a simple structure and is easy to manufacture. 1. An electrically driven pump , comprising a first housing , a second housing , a partition , a stator assembly , a circuit board and a rotor assembly , wherein the electrically driven pump comprises a pump chamber , the pump chamber comprises a space defined by the first housing and the second housing , the pump chamber is divided , by the partition , into a dry chamber and a wet chamber , the rotor assembly is arranged in the wet chamber , and the stator assembly and the circuit board are arranged in the dry chamber , wherein:the rotor assembly comprises an impeller, a rotor and a shaft sleeve assembly, the shaft sleeve assembly comprises a shaft sleeve, the impeller is arranged on one end of the shaft sleeve, and the rotor is arranged on another end of the shaft sleeve; andthe rotor comprises a permanent magnet, a rotor core and a shield, the permanent magnet is fixed to the rotor core, the rotor core is fixed to the shaft sleeve, an accommodating portion is formed between the shield and the shaft sleeve, and the permanent magnet is fixedly arranged in the accommodating portion.2. The electrically driven pump according to claim 1 , wherein the shield comprises a sleeve and at least ...

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Номер записи: 39
24-02-2022 дата публикации

PUMP COMPRISING AN IMPELLER BODY PROVIDED AS AN OBLIQUE CONE

Номер: US20220056920A1
Автор: Arnold Jacob, Meijnen Raymond Johan
Принадлежит:

A pump comprising an impeller having a hub base and an impeller body. The impeller body comprises a base which is concentric relative to a rotational axis of the impeller, and at least one eccentric apex. 1. A pump comprising an impeller having a hub and an impeller body , wherein the impeller body comprises:a base which is concentric relative to a rotational axis of the impeller; andat least one oblique cone having an eccentric apex, the at least one oblique cone extending from the hub base.2. The pump of further comprising a tubular sleeve having an upstream open end and a downstream open end defining an annular outflow opening with the hub claim 1 ,wherein the impeller body extends into the sleeve with the eccentric apex directly adjacent to an inner surface of the sleeve.3. The pump of claim 2 , wherein the eccentric apex is connected to the inner surface of the sleeve.4. The pump of claim 2 , wherein the sleeve has a flaring shape with a larger diameter at the outflow opening and a smaller diameter at an inflow opening.5. The pump of claim 4 , wherein the flaring shape is trumpet shaped.6. The pump of claim 1 , wherein the impeller body has at least one vane extending between the eccentric apex and the base.7. The pump of claim 2 , wherein the impeller body comprises at least one trailing edge.8. The pump of claim 7 , wherein the at least one trailing edge is positioned in the annular opening between the sleeve and the hub base.9. The pump of claim 8 , wherein the impeller body has at least one vane spiraling from the eccentric apex to the trailing edge.10. The pump of claim 8 , wherein the eccentric apex and the trailing edge are arranged on a first plane claim 8 , the eccentric apex and the center point of the hub are arranged on a second plane claim 8 , and an angle between the first and second plane is an acute angle.11. (canceled)12. The pump of claim 1 , wherein at least one of the at least one oblique cones includes an inwardly curved carve-out on a back ...

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Номер записи: 40
18-02-2016 дата публикации

ELECTRIC PUMP

Номер: US20160047382A1
Автор: Torii Hidemasa
Принадлежит:

A rotor of an electric pump may include a body having an inner circumferential surface encircling a shaft; and a magnet located in a motor chamber of a storage space of the pump, and arranged so as to be (i) separated from an outer circumferential surface of the body with an interval in between and (ii) separated from a stator of the pump with an interval in between. The interval between the magnet and the body may communicate the motor chamber and a pump chamber of the storage space. The body may include a groove extending from an end of the inner circumferential surface of the body to the pump chamber. The rotor may further comprise a wall disposed in the interval between the magnet and the outer circumferential surface of the body and at a position being different from the groove in a rotation direction of the rotor. 2. The electric pump according to claim 1 , whereinthe wall projects from the outer circumferential surface of the body toward the magnet.3. The electric pump according to claim 1 , whereinthe wall divides the interval between the magnet and the outer circumferential surface of the body into a plurality of spaces.4. The electric pump according to claim 1 , whereinthe wall extends toward a side opposite to the pump chamber at a greater degree than a motor chamber side end of the outer circumferential surface of the body.5. The electric pump according to claim 1 , whereinthe wall comprises a face facing forward in the rotation direction of the rotor, andthe face is inclined more forward relative to the rotation direction of the rotor as the face extends from a motor chamber side toward a pump chamber side.6. The electric pump according to claim 1 , whereinthe wall comprises a plurality of the walls placed at intervals in the rotation direction of the rotor, anda length of each wall along the rotation direction of the rotor is greater as the wall extends from a motor chamber side toward a pump chamber side.7. The electric pump according to claim 1 , ...

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Номер записи: 41
18-02-2016 дата публикации

ELECTRIC WATER PUMP WITH COOLANT PASSAGE

Номер: US20160047394A1
Автор: Lee Bong Sang
Принадлежит:

An electric water pump includes an electric motor having a stator which generates an electromagnetic field by control signals supplied from a pump driver. A rotor rotates by the electromagnetic field generated by the stator. An impeller is connected to and rotates with the rotor to circulate a coolant. An inside space of the electric water pump may include a motor room in which the electric motor is disposed, a volute room in which the impeller is positioned, and a pump driver room in which the pump driver is positioned. 1. An electric water pump comprising:an electric motor having a stator which generates an electromagnetic field by control signals supplied from a pump driver, and a rotor which rotates by the electromagnetic field generated by the stator; andan impeller connected to and rotating with the rotor to circulate a coolant, a motor room in which the electric motor is disposed;', 'a volute room in which the impeller is disposed; and', 'a pump driver room in which the pump driver is disposed., 'wherein an inside space of the electric water pump includes2. The electric water pump of claim 1 , further comprising:a bulkhead separating the motor room and the pump driver room to seal the motor room and the pump driver room with respect to each other;a separation wall separately forming a rotor room inside the motor room to isolate the rotor from the motor room; anda cap mounted to a front surface of the bulkhead to support one end of the separation wall,wherein a front side of the rotor room fluidly communicates with the volute room to flow the coolant into the rotor room.3. The electric water pump of claim 2 , further comprising:an insulation pad for insulating the pump driver from the bulkhead.4. The electric water pump of claim 2 , further comprising:a first cooling passage formed in one side of a water pump housing or a motor room cover for sealing the motor room from outside;a second cooling passage of which one end is connected to the first cooling passage ...

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Номер записи: 42
18-02-2016 дата публикации

Electric Coolant Pump

Номер: US20160047395A1
Автор: CHEN An Bang, LIANG Guan Yin, QIN Rui Feng, REN Yan Ping, Zhang Hong Liang
Принадлежит:

An electric coolant pump includes a housing, a motor received in the housing, an impeller for driving coolant, and a control unit for controlling the motor. The control unit and the impeller are arranged at opposite ends of the motor. The motor includes a sleeve, a stator mounted around the sleeve, and a rotor rotatably received in the sleeve. The impeller is fixed to the rotor. A radial gap is formed between the sleeve and the rotor. The sleeve includes a plurality of ribs extending from an internal surface of the sleeve into the gap. At least a portion of the ribs of the sleeve guide the coolant towards the control unit to absorb heat generated by the control unit. 1. An electric coolant pump , comprising:a housing;a motor received in the housing, the motor comprising a sleeve, a stator mounted around the sleeve, and a rotor rotatably received in the sleeve, a radial gap being formed between the sleeve and the rotor, wherein the sleeve comprises a plurality of ribs extending from an internal surface of the sleeve towards the rotor;an impeller for driving coolant, the impeller being connected to the rotor and rotating with the rotor; anda control unit for controlling the motor, the control unit and the impeller being respectively arranged at opposite ends of the motor, at least a portion of the ribs of the sleeve guiding the coolant to flow towards the control unit to absorb heat generated by the control unit.2. The pump of claim 1 , wherein the ribs are aslant to an axis of the sleeve claim 1 , and a tilt angle of each of the ribs is from 0° to 90°.3. The pump of claim 2 , wherein the tilt angle of each rib is from 42° to 67.5°.4. The pump of claim 1 , wherein the ribs are straight as developed along a circumferential direction of the sleeve.5. The pump of claim 1 , wherein the ribs are helical.6. The pump of claim 1 , wherein the ribs are divided into a plurality of groups which are arranged in a circumferential direction of the sleeve and spaced from each other ...

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Номер записи: 43
16-02-2017 дата публикации

Reducing Centrifugal Pump Bearing Wear Through Dynamic Magnetic Coupling

Номер: US20170045054A1
Автор: Naidyhorski Roger A., Petersen Craig D., Steffens Brian J.
Принадлежит:

A pump drive for an extracorporeal blood pumping system including an adjustable drive magnet. The pump drive may be coupled to a blood pump which includes a pump impeller. The pump drive may include a stepper motor for dynamically adjusting the position of the drive magnet. The position of the drive magnet may be varied to vary the distance between the drive magnet and an impeller magnet of the pump impeller. Adjusting the position of the drive magnet may include dynamically adjusting the drive magnet and may include axially moving the drive magnet to thereby vary a magnetic attraction force between the drive magnet and the impeller magnet which may thereby minimize forces acting on one or more bearings of a pump impeller. 113-. (canceled)14. A method of minimizing wear on at least one of an upper bearing and a lower bearing of a centrifugal blood pump comprising a pump impeller , the method comprising:varying a position of a pump drive magnet such that a magnetic attraction force between a pump impeller magnet and the drive magnet is approximately equal and opposite a pump impeller lift force, the impeller lift force caused by an actuation of the pump impeller;wherein the magnetic attraction force causes the pump impeller to act on the lower bearing and the lift force causes the pump impeller to act on the upper bearing; andwherein when the magnetic attraction force and the lift force are approximately equal and opposite, an axial force on each of the upper bearing and the lower bearing is minimized.15. The method of claim 14 , wherein varying the position of the pump drive magnet comprises displacing a drive motor coupled to the drive magnet; and wherein displacing the drive motor comprises actuating a stepper motor coupled to the drive motor.16. The method of claim 15 , wherein actuating a stepper motor comprises controlling the stepper motor via a system controller.17. The method of claim 16 , wherein controlling the stepper motor via a system controller ...

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Номер записи: 44
15-02-2018 дата публикации

SYSTEMS AND METHODS FOR GENERATING CLEAN ENERGY THROUGH HYDRODYNAMIC CLOSED CYCLE

Номер: US20180045212A1
Автор: MALOYAN Arman Zhora, MALOYAN Zhora Hovsep
Принадлежит:

Systems for pumping water are described. The system can include a covered pool containing a first volume of water, an oared water pump with a plurality of radial oars, a reservoir and a hydro turbine system. The system can include a first portion of the plurality of radial oars that can be substantially disposed with the first volume of water contained by the covered pool and can also include a second portion of the plurality of radial oars that can be substantially disposed outside of the first volume of water contained in the covered pool. The oared pump can be configured to pump a portion of the first volume of water out of the covered pool. The reservoir can be configured in fluid communication with the covered pool, and can receive a portion of the first volume of water that can be pumped out of the covered pool by the oared pump. The reservoir can also be configured to allow a second volume of water to flow from the reservoir into the covered pool. The hydro turbine system can be configured to generate electric power based on the second volume of water flowing into the covered pool from the reservoir. 1. An oared water pump comprising:a pump cover configured to form a covered pool with a first volume of water;a cylindrical body disposed substantially within the pump cover; anda plurality of radial oars fixedly coupled to the cylindrical body, wherein a first portion of the plurality of radial oars is configured to be disposed in the first volume of water and a second portion of the plurality of radial oars is configured to be disposed outside of the first volume of water.2. The system of claim 1 , wherein the plurality of oars comprises between 5 and 30 radial oars and wherein the first portion of the plurality of radial oars that is configured to be disposed in the first volume of water comprises between 2 and 20 radial oars.3. The system of claim 1 , wherein the plurality of oars comprises between 12 and 24 radial oars and wherein the first portion of the ...

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Номер записи: 45
03-03-2022 дата публикации

SYSTEMS FOR A PUMP SEAL CHAMBER

Номер: US20220065262A1
Автор: Atz Charles, Blythe Neil, Ravindranath Balaji Hosadurgam
Принадлежит:

Various systems are provided for a seal chamber of a centrifugal pump. In one example, a seal chamber housing for a centrifugal pump includes a central cavity internal to the seal chamber housing, the central cavity having a greater diameter at a first end of the seal chamber housing and a smaller diameter at a second end of the seal chamber housing, and at least one flushing passage at the second end of the seal chamber housing. The at least one flushing passage is configured to directly fluidically couple the central cavity to an exterior of the seal chamber housing. In this way, increased cooling and debris removal may be provided to a seal positioned within the seal chamber housing.

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Номер записи: 46
23-02-2017 дата публикации

SLIDE DEVICE, MECHANICAL SEAL, PUMP AND AUXILIARY ARTIFICIAL HEART SYSTEM

Номер: US20170049944A1
Автор: KANESHIMA Keiichiro, KINOSHITA Hisa, KITANO Tomoya
Принадлежит:

Provided is a slide device which includes a fixed-side slide member having an annular-shaped first slide surface, and a rotary-side slide member having an annular-shaped second slide surface, with the slide device being configured such that the first slide surface and the second slide surface are positioned opposite to each other, and an outer peripheral side of the fixed-side slide member and an outer peripheral side of the rotary-side slide member are brought into contact with a liquid containing a blood component, and a region where the first slide surface and the second slide surface face each other along the rotary-side slide member, the first slide surface and the second slide surface are brought into contact with each other on an outermost periphery of the opposite-facing region of the first and second slide surfaces. 1. A slide device comprising:a fixed-side slide member having an annular-shaped first slide surface; anda rotary-side slide member having an annular-shaped second slide surface, wherein the slide device is configured to be used in a state where the first slide surface and the second slide surface are made to opposedly face each other, and an outer peripheral side of the fixed-side slide member and an outer peripheral side of the rotary-side slide member are brought into contact with a liquid containing a blood component, whereinassuming a region where the first slide surface and the second slide surface opposedly face each other as viewed in a direction along an axis of rotation of the rotary-side slide member as an opposedly facing region, the first slide surface and the second slide surface are brought into contact with each other on an outermost periphery of the opposedly facing region.2. The slide device according to claim 1 , wherein a gap is formed between the first slide surface and the second slide surface on an inner peripheral side of a contact position where the first slide surface and the second slide surface are brought into contact ...

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Номер записи: 47
25-02-2016 дата публикации

DYNAMIC PRESSURE BEARING PUMP

Номер: US20160053769A1
Автор: Ito Michihiro, MIZUKAMI Junya, NAGASAWA Naohiro, Nishimura Hideki, NISHITANI Yoshito
Принадлежит:

A pump a shaft portion arranged to extend in a vertical direction; a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; and a housing joined to the shaft portion, and arranged to contain the rotor portion. The housing includes a stator arranged opposite to the magnet; a rotor accommodating portion arranged to accommodate the rotor portion; and an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion. A surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion. A surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet. The rotor portion includes a through hole arranged to pass therethrough in an axial direction. 1. A dynamic pressure bearing pump comprising:a shaft portion arranged to extend in a vertical direction;a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; anda housing joined to the shaft portion, and arranged to contain the rotor portion; wherein a stator arranged opposite to the magnet;', 'a rotor accommodating portion arranged to accommodate the rotor portion; and', 'an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion;, 'the housing includesa surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion;a surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet; andthe rotor portion includes a ...

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Номер записи: 48
22-02-2018 дата публикации

ROTARY PUMP

Номер: US20180051699A1
Автор: SCHÖB Reto
Принадлежит:

Disclosed is a rotary pump including a magnetic rotor arranged in a pump housing and having a magnetic rotor plane, which rotor is operatively connected to a drive for conveying a fluid. The drive is a bearingless motor having a stator configured as a bearing stator and drive stator and having a magnetic stator plane, wherein the stator bears a drive coil and a bearing coil lying in the stator plane and/or a drive bearing coil. The rotor is magnetically contactlessly journalled within the stator, wherein an axial height (H) of the rotor is smaller than or equal to half a diameter (D) of the rotor so that the rotor is passively magnetically stabilized by reluctance forces with respect to the magnetic stator plane both against axial displacement and against a tilt from an equilibrium position. 1. A rotary pump , including a magnetic rotor arranged in a pump housing and having a magnetic rotor plane , which rotor is operatively connected to a drive for conveying a fluid , wherein an inlet opening is provided at the pump housing for the inlet of the fluid into the pump housing and a radial outlet passage is provided for conveying the fluid out of the pump housing and wherein the drive is a bearingless motor having a stator configured as a bearing stator and drive stator and having a magnetic stator plane , at which stator a plurality of coil cores is provided with each coil core bearing a drive coil or a bearing coil and/or a drive bearing coil with each coil lying in the stator plane , wherein the rotor is magnetically contactlessly journalled within the stator and an axial height of the rotor is smaller than or equal to half a diameter of the rotor so that the rotor is passively magnetically stabilized by reluctance forces with respect to the magnetic stator plane both against an axial displacement and against a tiling from an equilibrium position , wherein the outlet passage is radially outwardly conducted away from the pump housing in the region of the stator such ...

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Номер записи: 49
03-03-2016 дата публикации

IMPELLER OF A CENTRIFUGAL PUMP APPARATUS

Номер: US20160061209A1
Автор: BOEHNING Fiete, SCHEMITZ-RODE Thomas, Steinseifer Ulrich
Принадлежит:

The invention relates to an impeller () of a centrifugal pump apparatus, in particular of a blood pump apparatus, comprising a discoidal body () rotatable around an axis () of rotation, the body () comprising an upper surface (), a lower surface (), a central channel () extending in the direction of the axis () of rotation between the upper and lower surface () for guiding fluid, in particular blood through the body () in axial direction when the body () is rotated in a pump chamber of a pump and several blades () supported by the upper surface () for pumping fluid, in particular blood, when the body () is rotated in a pump chamber of a pump, several spiral grooves () in the lower surface (), each groove () having a bottom (a) and two sidewalls () and being open in an axial direction, merging into a circumferential surface () of the body () and extending from this circumferential surface () to the central channel () at least for providing a pumping action of fluid, in particular blood, from the circumferential surface () to the central channel () when the body () is rotated within a pump chamber of a pump, permanent magnets () integrated in the body () for driving the impeller by means of a magnetic field wherein each groove () is also merging into the central channel (), one of the sidewalls (b) of each groove () being higher above the bottom (a) than the other sidewall (), in particular the leading sidewall (b) with respect to the regular direction (R) of rotation being higher than the trailing sidewall (), a respective surface area () being disposed between each two neighboring grooves () and connecting the leading sidewall and the trailing sidewall of neighboring grooves, in particular thus forming a tilted pad area between each pair of neighboring grooves. The invention furthermore relates to a centrifugal blood pump apparatus comprising such an impeller. 1. An impeller of a centrifugal blood pump apparatus , comprising a discoidal body rotatable around an axis ...

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Номер записи: 50
03-03-2016 дата публикации

Mechanical Seal Lubrication System

Номер: US20160061211A1
Автор: Murray Patrick
Принадлежит:

Disclosed is a pump which comprises a mechanical seal lubricated by supplying lubricant from an external oiler. When there is no fluid flowing through the pump and the pump is in operation, the temperature of the mechanical seal rises. The lubricant from the oiler is supplied to the center of the mechanical seal through entry lines, and serves to maintain temperature within the pump and seal, while also avoiding failure of the seal. The lubricant keeps the mechanical seal cool and lubricated at all times. 2. The system for lubricating the mechanical seal according to claim 1 , wherein of the oiler contains a volume of about four to seven ounces.3. The system for lubricating the mechanical seal according to claim 1 , wherein the oiler is mounted such that it is visible to a user at all times during the operation of the pump.4. The system for lubricating the mechanical seal according to claim 1 , wherein the plurality of fins comprises continuous fins.5. The system for lubricating the mechanical seal according to claim 1 , wherein the plurality of fins comprises alternating size of fins ranging from claim 1 , about four to about seven inches.6. The system for lubricating the mechanical seal according to claim 1 , further including a plurality of snap rings attached to the oiler claim 1 , wherein the plurality of snap rings is configured to avoid lubricant spillage from the oiler.7. The system for lubricating the mechanical seal according to claim 1 , wherein the predetermined temperature of the mechanical seal and the predetermined temperature of the lubricant is maintained at about 180 degree Fahrenheit-225 degree Fahrenheit.8. The system for lubricating the mechanical seal according to claim 1 , wherein the pump is a centrifugal pump.9. The system for lubricating the mechanical seal according to claim 1 , wherein the seal has notches for ease in installation. This is a non-provisional patent application based on co-pending US Provisional Patent Application Ser. No. ...

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Номер записи: 51
03-03-2016 дата публикации

Pump Impeller

Номер: US20160061213A1
Автор: Glaves Garry Bruce, Lavagna Luis Moscoso
Принадлежит:

An impeller for a pump, the impeller comprising a main body which in use is rotatable about a central axis, the main body including a front side and a rear side, the front side having a generally spherical cap-like or dome-shaped surface with an apex region in the vicinity of the central axis and a peripheral outer region in the vicinity of the rear side, a plurality of channels extending through the main body each having an inlet opening and an outlet opening, the inlet openings being in the vicinity of the apex region and the outlet openings being in the vicinity of the peripheral outer region. 1. An impeller for a pump , the impeller comprising a main body which in use is rotatable about a central axis , the main body including a front side and a rear side , the front side having a generally spherical cap-like or dome-shaped surface with an apex region in the vicinity of the central axis and a peripheral outer region in the vicinity of the rear side , a plurality of channels extending through the main body each having a channel surface , an inlet opening and an outlet opening , the inlet openings being in the vicinity of the apex region and the outlet openings being in the vicinity of the peripheral outer region at least a part of the channel surface provides for a pumping surface.2. The impeller according to claim 1 , wherein the channels are curved.3. (canceled)4. The impeller according to claim 1 , wherein the inlet openings are spaced around the central axis.5. The impeller according to claim 1 , wherein the outlet openings are spaced around the peripheral outer region.6. The impeller according to claim 1 , wherein the distance of each channel with respect to the central axis increases when moving from the inlet opening to the outlet opening.7. The impeller according to claim 1 , wherein the inlet openings are generally oval shaped and have a long or major axis claim 1 , the long or major axis being inclined to the central axis.8. The impeller according to ...

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Номер записи: 52
02-03-2017 дата публикации

CENTRIFUGAL PUMP WITH SERRATED IMPELLER

Номер: US20170058911A1
Автор: Baryshnikov Dmitriy
Принадлежит: WOODWARD, INC.

A centrifugal pump and an impeller thereof are provided. The impeller defines an outer peripheral edge which includes a plurality of serrations circumferentially thereon. The plurality of serrations are configured such that additional power and momentum are transferred to a working fluid of the pump, which results in an additional pressure rise in the working fluid at relatively low flow rates of the centrifugal pump. 1. An impeller for a centrifugal pump , the impeller comprising:a disc shaped shroud having a central axis, and a central hub circumscribing the central axis;a disc shaped base plate having a central axis coaxial with the central axis of the shroud, the base plate having a plurality of vanes extending from a first surface of the base plate;wherein the shroud includes a plurality of serrations formed circumferentially along a periphery of the shroud;wherein the base plate includes a plurality of serrations formed circumferentially along a periphery of the base plate; andwherein the shroud is mounted against the base plate.2. The impeller of claim 1 , wherein the central hub of the shroud has a first outer diameter claim 1 , and wherein the base plate includes a central hub extending axially from the first surface of the base plate claim 1 , the central hub of the base plate having a second outer diameter which is less than the first outer diameter.3. The impeller of claim 2 , wherein a portion of the central hub of the base plate extends axially into an opening defined by the central hub of the shroud.4. The impeller of claim 1 , wherein the plurality of serrations of the base plate includes a plurality of major teeth claim 1 , and a plurality of minor teeth arranged such that multiple minor teeth are arranged between adjacent ones of the plurality of major teeth.5. The impeller of claim 4 , wherein each one of the plurality of major teeth has a thickness measured in the circumferential direction and wherein each one of the plurality of minor teeth has ...

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Номер записи: 53
20-02-2020 дата публикации

PUMP ASSEMBLY

Номер: US20200056614A1
Автор: Blad Thomas
Принадлежит:

A centrifugal pump assembly includes an electrical drive motor (), an impeller () which is driven by the drive motor and a pump casing () surrounds the impeller and including two branches (). A movable valve element () is arranged in the pump casing and is movable between two switching positions, in which the flow paths through the two branches () are opened to a different extent. The valve element () is configured and arranged in the pump casing () such that it separates a suction chamber () which is connected to a suction side of the impeller () from a delivery chamber () which is in connection with the delivery side of the impeller (). The valve element () is mechanically and/or hydraulically coupled to the drive motor () for at least a movement between the two switching positions. 1. A centrifugal pump assembly comprising:an electrical drive motoran impeller which is driven by the electrical drive motor;a pump casing which surrounds the impeller and which comprises at least two branches;a movable valve element arranged in the pump casing, said valve element being movable between at least two switching positions, in which the flow paths through the at least two branches are opened to a different extent, wherein the valve element is configured and arranged in the pump casing such that the valve element separates a suction chamber, which is connected to a suction side of the impeller, from a delivery chamber, which is in connection with the delivery side of the impeller, and the valve element is mechanically and/or hydraulically coupled to the drive motor for at least a movement between the at least two switching positions.2. A centrifugal pump assembly according to claim 1 , wherein the valve element is rotatable between the at least two switching positions.3. A centrifugal pump assembly according to claim 2 , wherein a rotation axis claim 2 , about which the valve element is rotatable claim 2 , extends parallel to a rotation axis of the impeller and.4. A ...

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Номер записи: 54
10-03-2016 дата публикации

CASSETTE MODULE HAVING AN INTEGRATED CENTRIFUGAL PUMP UNIT

Номер: US20160067394A1
Автор: Heide Alexander, Oerter Goekhan, Waeber Udo, Weis Manfred, WENKE Marina, Wiktor Christoph
Принадлежит: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

The invention relates to a cassette module for processing blood and therapeutic fluids in an extracorporeal blood treatment, dialysis or infusion technology, comprising a base body (), with a first side and a second side, fluid channels integrated into the base body, a receiving unit () to receive a centrifugal pump means for delivering fluids, characterized in that at least some of the fluid channels are arranged on a first side of the base body, and the receiving unit for the centrifugal pump means is arranged on the second side, and the receiving unit for the centrifugal pump means is in fluid connection with the fluid channels on the first side during operation. 1. A cassette module for processing blood and therapeutic fluids in an extracorporeal blood treatment , dialysis or infusion technology , comprising:{'b': 202', '302', '402', '502', '602', '702', '802', '902', '1002, 'a base body (, , , , , , , , ) having a first side and a second side,'}{'b': 207', '207', '307', '307', '407', '407', '507', '507', '607', '707', '707', '907', '907', '1007', '1007, 'i': a', 'a', 'a', 'a', 'a', 'a', 'a, 'fluid channels (, , , , , , , , , , , , , , ) integrated into the base body,'}{'b': 204', '304', '404', '504', '704', '804', '904', '1004, 'a receiving unit (, , , , , , , ) for receiving a centrifugal pump means for delivering fluids,'}characterized in that at least some of the fluid channels are arranged on a first side of the base body, and the receiving unit for the centrifugal pump means is arranged on a second side, and the receiving unit for the centrifugal pump means is in fluid connection with the fluid channels on the first side during operation.220720730730740740750750760770770790790710071007aaaaaaa. The cassette module according to claim 1 , characterized in that the fluid channels ( claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , ) on the first side of the base body form ...

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Номер записи: 55
09-03-2017 дата публикации

WATER FLOW CONTROL ASSEMBLY FOR HYDRAULIC FOOD CUTTER

Номер: US20170066153A1
Автор: Justesen Neil, Leoni Fred
Принадлежит:

The present disclosure includes a hydraulic food cutter assembly having a pump, a pump discharge line, a cutter assembly a product supply tank, and a fluid transport medium comprising a method and apparatus for increasing the flow of fluid transport medium through the pump while maintaining a preselected velocity for the flow of the fluid transport medium in pump discharge line by using a frustoconical accelerator tube attached to the discharge line of the pump having a plurality of apertures through which the fluid transport medium may flow out of the accelerator tube into fluid tight housing encasing the accelerator and a throttling valve operatively attached to the fluid tight housing discharge line for regulating the pressure of the fluid medium being discharge from the pump so as to maximize fluid medium flow through the pump at a preselected pressure in the discharge line. 1. A flow control assembly for use in a hydraulic food product cutting machine having a pump , a pump discharge line , a cutter assembly , a product supply tank , and a fluid transport medium , which comprises:a frustoconical accelerator tube attached to the discharge line of the pump for reducing the diameter of the discharge line, said frustoconical accelerator tube having a plurality of apertures through which the fluid transport medium may flow out of the accelerator tube;a fluid tight housing encasing the accelerator tube for containing the fluid transport medium flowing out of the apertures through the accelerator tube;a housing discharge line interconnecting the fluid tight housing to a product supply tank for dumping fluid medium from the housing to the product supply tank; and,a throttling valve operatively attached to the housing discharge line for regulating the pressure of the fluid medium being discharge from the pump so as to maximize fluid medium flow through the pump at a preselected pressure.2. The flow control assembly of wherein the throttling valve is a pressure ...

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Номер записи: 56
17-03-2016 дата публикации

IMPELLER AND FLUID MACHINE

Номер: US20160076551A1
Автор: SAITO Ryosuke
Принадлежит:

Provided is an impeller and a fluid machine which have an annular hub () and a plurality of blades () radially arranged along an outer peripheral surface of the hub (). On a pressure surface (P) of the blade (), there are provided a first pressure surface () extending from the hub () side at an angle of 90 degrees or less with respect to the forward direction of the rotation direction (A), and a second pressure surface () extending from the first pressure surface () at an angle of more than 90 degrees with respect to the forward direction of the rotation direction (A). This configuration reduces a low-energy fluid stagnating on a suction surface side of the blade, achieving higher impeller efficiency. 1. An impeller comprising:a hub having an annular shape; anda plurality of blades radially arranged along an outer peripheral surface of the hub,the impeller being configured in such a manner that a fluid having flowed from a leading edge side of the blade along a rotation axis is discharged from a trailing edge side of the blade outward in the radial direction intersecting the rotation axis, whereina pressure surface of the blade includes:a first pressure surface extending from the hub side at an angle of 90 degrees or less with respect to the forward direction of the direction of rotation of the impeller;a second pressure surface extending from the first pressure surface at an angle of more than 90 degrees with respect to the forward direction of the direction of rotation of the impeller; anda third pressure surface extending from the second pressure surface at an angle of 90 degrees or less with respect to the forward direction of the direction of rotation of the impeller, andthe pressure surface of the blade has a curved shape bending forward in the rotation direction on an inner peripheral side, while having an S-shape formed of the first pressure surface, the second pressure surface, and the third pressure surface on the outer peripheral side.2. (canceled)3. The ...

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Номер записи: 57
05-03-2020 дата публикации

SOLID BODY VORTEX PUMP

Номер: US20200072240A1
Автор: Day Terence Robert
Принадлежит:

A pump includes a pump casing that defines a pump chamber, the pump casing having an inlet and an outlet. An impeller is arranged with respect to the pump chamber to displace fluid from the inlet into the pump chamber. A vortex shaping mechanism is arranged in the pump chamber and is configured to constrain fluid within the pump chamber into a rotational flow pattern about a rotational axis. At least the casing and the vortex shaping mechanism are configured so that a portion of the fluid is encouraged to establish a solid body vortex, with an outer periphery of the solid body vortex being determined by the vortex shaping mechanism, and a portion of the fluid defining a diffusion zone in fluid communication with the outlet such that fluid cant diffuse across a fluid interface between the solid body vortex and the diffusion zone to generate a pumping pressure at the outlet. 12-. (canceled)4. The pump as claimed in claim 3 , in which the impeller is a generally disc-shaped impeller mounted in the casing to be driven rotationally about the rotational axis and having a pair of opposed claim 3 , generally flat walls and a radial profile with a periphery that is generally flat and parallel to an axis of rotation of the impeller.5. The pump as claimed in claim 4 , in which an outlet of the impeller is configured so that a flow of fluid out of the impeller is restricted to generate a buildup of fluid pressure within the impeller.6. The pump as claimed in claim 5 , in which the outlet of the impeller is defined by a circumferential slot that opens axially.7. The pump as claimed in claim 5 , in which the outlet of the impeller is defined by a circumferential slot that opens radially.8. The pump as claimed in claim 4 , which includes a cover arrangement in which the impeller is arranged claim 4 , the cover arrangement defining a flow restriction aperture so that flow from the impeller into the pump chamber is restricted to generate a buildup of fluid pressure within the ...

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Номер записи: 58
18-03-2021 дата публикации

Adaptive volutes for centrifugal pumps

Номер: US20210079928A1
Автор: Alexander H. Slocum, Hilary A. JOHNSON, Kevin P. Simon
Принадлежит: Massachusetts Institute of Technology

Centrifugal pump systems and related methods are disclosed herein that can shift a best efficiency point of a pump based on one or more operating conditions to operate more efficiently across and/or adjust to a broader range of conditions. Pumps provided for herein can include an adaptive volute in which a geometry of the volute can be adjusted to shift an operating efficiency of the pump. In some embodiments, a height or radial dimension of the adaptive volute can be adjusted based on one or more operating condition. A geometry of the adaptive volute can be adjusted during operation of the pump and/or while an impeller is disposed within the volute. In some embodiments, a first and second collar can be disposed within the adaptive volute. Rotation of the first component can move the second component axially, which can expand or contract an axial dimension of the adaptive volute.

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Номер записи: 59
26-03-2015 дата публикации

Centrifugal pump for delivering liquids in a motor vehicle

Номер: US20150086342A1
Автор: KÖPPLER Peter
Принадлежит:

In a centrifugal pump for delivering liquids in a motor vehicle, annular webs project into a gap seal between a housing part and a cover disc of a rotor. The webs are arranged on both components of the housing part and of the cover disc and delimit chambers which accelerate, decelerate and divert a flow. In this way, the gap seal has a high throttling action. 18-. (canceled)91. A centrifugal pump () for delivering liquids in a motor vehicle , comprising:{'b': 8', '10', '11, 'a housing () delimiting an intake duct () and an outlet duct ();'}{'b': 9', '8', '14', '13', '9', '15', '14, 'a driven rotor () configured to rotate in the housing () and having rotor blades (), which project from a supporting disk () of the driven rotor (), and having a cover disk (), which connects free ends of rotor blades ();'}{'b': 16', '8', '15, 'a housing part () of the housing () arranged opposite the cover disk ();'}{'b': 17', '15', '16, 'a gap seal () arranged between the cover disc () and the housing part (); and'}{'b': 22', '24', '28', '29', '17', '22', '23', '15', '24', '16', '24', '16', '22', '23', '15, 'a plurality of projecting annular webs (-, , ) arranged in the gap seal (), at least one of the plurality of projecting annular webs (, ) being arranged on the cover disk () and at least one of the plurality of projecting annular webs () being arranged on the housing part (), the at least one annular web () arranged on the housing part () being offset relative to the at least one annular web (, ) arranged on the cover disk ().'}10222417. The centrifugal pump as claimed in claim 9 , wherein annular webs (-) arranged opposite one another each project over half the height of the gap seal ().1122242829252617. The centrifugal pump as claimed in claim 9 , wherein the plurality of annular webs (- claim 9 , claim 9 , ) delimit a plurality of chambers ( claim 9 , ) in the gap seal () claim 9 , the chambers having different cross sections.121718101911139181920222420. The centrifugal pump as ...

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Номер записи: 60
23-03-2017 дата публикации

Methods Of Operating A Rotary Blood Pump

Номер: US20170082114A1
Автор: Lancisi David M., Wampler Richard K.
Принадлежит: Thoratec Corporation

Various “contactless” bearing mechanisms including hydrodynamic, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, the pump apparatus includes a rotor having a bore, a ring-shaped upper rotor bearing magnet, and a ring-shaped lower rotor bearing magnet. The bearing magnets are concentric with the bore. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood. 1. A method of assembling a centrifugal fluid pump comprising:disposing a rotor in a housing having a center-post for rotation of said rotor around said center-post;forming a magnet assembly for magnetically biasing said rotor in a first direction;configuring at least one ring-shaped center-post magnet and at least one ring-shaped rotor magnet for providing a stabilizing force to said rotor during operation; andpositioning said rotor in proximity to said housing such that hydrodynamic forces are created in opposition to said biasing during rotation of said rotor.2. A method according to claim 1 , wherein the disposing comprises disposing said rotor in said housing to form a leakage flow path between said rotor and said housing assembly.3. A method according to claim 1 , wherein said positioning comprises placing said rotor in proximity to contoured hydrodynamic surfaces.4. A method according to claim 3 , wherein said positioning further comprises placing said rotor in proximity to contoured hydrodynamic surfaces formed on a surface of said housing assembly.5. A method according to claim 1 , further comprising adjusting the relative position of said at least one ring-shaped center-post magnet and said at least one ring-shaped rotor magnet so as to fine tune the biasing of said rotor axially in said first direction.6. A method according to claim 4 , wherein said adjusting includes axially moving said at least one ring-shaped ...

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Номер записи: 61
12-03-2020 дата публикации

CENTRIFUGAL PUMP WITH NOISE DAMPENING RUBBER ISOLATION IMPELLER BUSHING

Номер: US20200080571A1
Автор: Cadoret Jean-Claude, Crowther David, Graichen Brian
Принадлежит:

A rotary assembly for a centrifugal pump includes a housing, an impeller, a first opening formed in one of the housing or the impeller, a first bushing disposed in the first opening, and a first shaft projection projecting axially from one of the housing or the impeller. The first bushing extends annularly around a central opening thereof and is formed from an elastomeric material. The first shaft projection is received within the central opening of the first bushing. One of the first shaft projection or the first bushing is configured to rotate relative to the other of the first shaft projection or the first bushing during operation of the centrifugal pump. 1. A rotary assembly having a rotor and a static housing , the rotary assembly comprising:a first bushing disposed in a first opening formed in one of the rotor or the static housing, the first bushing extending annularly around a central opening thereof and formed from an elastomeric material; anda first shaft projection projecting axially from one of the rotor or the static housing, the first shaft projection received within the central opening of the first bushing, wherein one of the first shaft projection or the first bushing rotates relative to an other of the first shaft projection or the first bushing during rotation of the rotor relative to the static housing.2. The rotary assembly of claim 1 , wherein the first bushing has one of a circular or an elliptical cross-sectional shape.3. The rotary assembly of claim 1 , wherein the first bushing is compressed in a radial direction thereof between the first shaft projection and an axially extending surface defining a portion of the first opening.4. The rotary assembly of claim 1 , wherein the elastomeric material forming the first bushing is a synthetic rubber.5. The rotary assembly of claim 3 , wherein the synthetic rubber is ethylene propylene diene monomer (EPDM) rubber.6. The rotary assembly of claim 1 , wherein the first shaft projection is formed from a ...

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Номер записи: 62
25-03-2021 дата публикации

APPARATUS AND METHOD FOR ALLEVIATING AND PREVENTING CAVITATION SURGE OF WATER SUPPLY CONDUIT SYSTEM

Номер: US20210088048A1
Автор: NOHMI Motohiko
Принадлежит:

A turbo pump acts on a liquid, and an apparatus and a method suppresses or alleviates a cavitation surge which is a unique phenomenon occurring in a turbo pump for a liquid. A method of operating a turbo pump while suppressing cavitation, includes: measuring a flow rate upstream of the turbo pump and a flow rate downstream of the turbo pump for delivering a liquid and comparing the flow rates with each other; if the upstream flow rate is lower than the downstream flow rate, reducing a pressure in a pump suction section to increase an upstream flow velocity while reducing a pressure in a pump discharge section to lower a downstream flow velocity; and if the downstream flow rate is lower than the upstream flow rate, increasing the pressure in the pump discharge section to increase the downstream flow velocity while increasing the pressure in the pump suction section. 1measuring a flow rate upstream of the turbo pump and a flow rate downstream of the turbo pump for delivering a liquid and comparing the flow rates with each other;if the upstream flow rate is lower than the downstream flow rate, reducing a pressure in a pump suction section to increase an upstream flow velocity while reducing a pressure in a pump discharge section to lower a downstream flow velocity; andif the downstream flow rate is lower than the upstream flow rate, increasing the pressure in the pump discharge section to increase the downstream flow velocity while increasing the pressure in the pump suction section.. A method of operating a turbo pump while suppressing a cavitation, comprising: This is a division of U.S. patent application Ser. No. 16/690,627, filed Nov. 21, 2019, which is a division of U.S. patent application Ser. No. 14,917,512, filed Mar. 8, 2016, which is the National Stage of PCT/JP2014/074098, filed Sep. 11, 2014 which claims priority to Japanese Patent Application 2013-189353, filed Sep. 12, 2013, the entireties of each of which are incorporated herein by reference.The present ...

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Номер записи: 63
02-04-2015 дата публикации

METHOD FOR CONTROLLING THE POWER OF A PUMP DEVICE AND PUMP DEVICE

Номер: US20150093253A1
Автор: AARESTRUP Jan Carøe, JENSEN Kim Hulegaard, MORTENSEN Lars Sund
Принадлежит:

A method for controlling the power limit of a pump device includes controlling the power limit of the pump device on the basis of a pump media temperature Tand an ambient temperature Tmeasured inside a control box of the pump device. A pump device, in particular a centrifugal pump, is driven by a motor. The motor is controlled by a control box wherein temperature sensors for measuring a media temperature Tand an ambient temperature Tare arranged in the control box so as to control the power limit of the pump device depending on the measured media temperature Tand an ambient temperature T. 1. A method for controlling the power limit of a pump device , the method comprising the steps of:providing the pump device with a control box;measuring a pump media temperature and an ambient temperature inside the control box of the pump device;controlling the power limit of the pump device on the basis of the pump media temperature and the ambient temperature measured inside the control box of the pump device.2. A method according to claim 1 , wherein the measured media and ambient temperatures are used in a thermal model stored in the control box to determine temperatures of one or more temperature critical pump components claim 1 , including electronic components claim 1 , in the pump device.3. A method according to claim 2 , wherein the power limit of the pump device is controlled such that if the temperature of all temperature critical pump components of the pump device determined on the basis of the thermal model are below their maximum temperature claim 2 , the input power limit of the pump device is at least temporarily raised above a nominal power limit.4. A method according to claim 2 , wherein the power limit of the pump device is controlled such that if the temperature of one or more pump critical components of the pump device determined on the basis of the thermal model is/are above its/their maximum temperature claim 2 , the input power limit is at least temporarily ...

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Номер записи: 64
19-03-2020 дата публикации

APPARATUS AND METHOD FOR ALLEVIATING AND PREVENTING CAVITATION SURGE OF WATER SUPPLY CONDUIT SYSTEM

Номер: US20200088203A1
Автор: NOHMI Motohiko
Принадлежит:

A turbo pump acts on a liquid, and an apparatus and a method suppresses or alleviates a cavitation surge which is a unique phenomenon occurring in a turbo pump for a liquid. A method of operating a turbo pump while suppressing cavitation, includes: measuring a flow rate upstream of the turbo pump and a flow rate downstream of the turbo pump for delivering a liquid and comparing the flow rates with each other; if the upstream flow rate is lower than the downstream flow rate, reducing a pressure in a pump suction section to increase an upstream flow velocity while reducing a pressure in a pump discharge section to lower a downstream flow velocity; and if the downstream flow rate is lower than the upstream flow rate, increasing the pressure in the pump discharge section to increase the downstream flow velocity while increasing the pressure in the pump suction section. 1. A method of operating a turbo pump while suppressing a cavitation , comprising:measuring a flow rate upstream of the turbo pump and a flow rate downstream of the turbo pump for delivering a liquid and comparing the flow rates with each other;if the upstream flow rate is lower than the downstream flow rate, reducing a pressure in a pump suction section to increase an upstream flow velocity while reducing a pressure in a pump discharge section to lower a downstream flow velocity; andif the downstream flow rate is lower than the upstream flow rate, increasing the pressure in the pump discharge section to increase the downstream flow velocity while increasing the pressure in the pump suction section.2. An apparatus for suppressing a cavitation of a turbo pump , comprising:a turbo pump for delivering a liquid;a first damping device configured to repeatedly increase and reduce a pressure of the liquid upstream of the turbo pump so as to damp an amplitude of a cyclical pressure fluctuation of the liquid upstream of the turbo pump; anda second damping device configured to repeatedly increase and reduce a ...

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Номер записи: 65
07-04-2016 дата публикации

PUMP ASSEMBLY FOR APPLIANCE

Номер: US20160097392A1
Автор: Xu Hanping
Принадлежит:

Appliances, such as dishwasher appliances, and pump assemblies for appliances are provided. A pump assembly includes a conduit, the conduit including a casing extending between an inlet and an outlet and defining an inner passage between the inlet and the outlet. The pump assembly further includes an impeller disposed within the inner passage, and a motor connected to the impeller and operable to rotate the impeller, the motor disposed within the inner passage. Fluid flowing within the inner passage is flowable past the motor. 1. A pump assembly for an appliance , the pump assembly comprising:a conduit, the conduit comprising a casing extending between an inlet and an outlet and defining an inner passage between the inlet and the outlet;an impeller disposed within the inner passage; anda motor connected to the impeller and operable to rotate the impeller, the motor disposed within the inner passage,wherein fluid flowing within the inner passage is flowable past the motor.2. The pump assembly of claim 1 , wherein the motor is hermetically sealed.3. The pump assembly of claim 1 , wherein the motor is a low voltage direct current motor.4. The pump assembly of claim 1 , further comprising a shaft and a shaft seal claim 1 , the shaft connecting the impeller and the motor claim 1 , the shaft seal disposed between the shaft and an outer casing of the motor.5. The pump assembly of claim 1 , further comprising an electrical wire assembly and a wire seal claim 1 , electrical wire assembly connected to the motor and extending through the casing claim 1 , the wire seal disposed between the electrical wire assembly and the casing.6. The pump assembly of claim 1 , wherein the outlet is generally coaxial with the inlet along a longitudinal axis of the conduit.7. The pump assembly of claim 1 , wherein the conduit is a drain pipe.8. An appliance claim 1 , comprising:a fluid source; a conduit, the conduit comprising a casing extending between an inlet and an outlet and defining an ...

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Номер записи: 66
01-04-2021 дата публикации

PUMP CASING WITH ADAPTIVE PRIMER AND IMPELLER

Номер: US20210095672A1
Автор: KUPP Edward, PLAYFORD Mark
Принадлежит: ITT Manufacturing Enterprises LLC

Technologies are generally described for pump devices that include an adaptive cutwater and impeller arrangement. The power end of the pump device can be coupled to a motor to drive an impeller. The primer plate and impeller of the pump device are removable from the pump casing such that the primer plate and impeller can be replaced or modified as desired for different applications. In some examples, the pump casing includes a primer plate that is removable from the pump casing, where the primer plate includes a discharge cutwater tongue that is specifically spaced and sized to service an impeller of a desired design. The discharge cutwater tongue and impellers in the pump device may thus be serviced for replacement parts, as well as to modify the pump device for different fluids of different fluids properties or hydraulic requirements as may be needed in different applications. 1. A pump apparatus comprising:a pump casing having a power end mounting face;a primer plate with a discharge cutwater tongue, wherein the primer plate is configured to be removably placed in the pump casing about the power end mounting face; andan impeller that is configured to be removably placed in cooperative alignment with the primer plate about the discharge cutwater tongue,wherein the impeller is configured to engage a power end when coupled to the power end mounting face, and wherein the discharge cutwater tongue is paired to the impeller for a priming operation of the pump.2. The pump apparatus of claim 1 , further comprising a seal ring positioned between the primer plate and the pump casing.3. The pump apparatus of claim 1 , further comprising:an inner ridge formed along an interior portion of the pump casing about the power end mounting face; anda seal ring configured to be placed along the inner ridge of the pump casing to seal contact points between the primer plate and the pump casing.4. The pump apparatus of claim 1 , further comprising mounting studs configured to affix the ...

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Номер записи: 67
26-06-2014 дата публикации

MULTIPHASE PUMPING SYSTEM

Номер: US20140178190A1
Автор: GAHLOT Vishal, Tyagi Mukul K.
Принадлежит: GE Oil & Gas ESP, Inc.

A centrifugal pump has a gas accumulation reduction system to reduce the risk of gas locking caused by the accumulation of gas at the inlet of the impeller. The gas accumulation reduction system includes: (i) one or more diffuser ports extending through the hub of a diffuser; and (ii) one or more recirculation passages extending through the hub of an impeller. The recirculation passages are in fluid communication with the one or more diffuser ports to permit the recirculation of a portion of pumped fluid through the stage. Additionally, a centrifugal pump that includes at least one turbomachinery stage. The stage includes a rotatable impeller that has an impeller hub with a centrally disposed eye and a plurality of impeller vanes. The impeller is variously configured to encourage mixing of two-phase fluids at the eye of the impeller hub. 1. A centrifugal pump comprising having at least one stage , the at least one stage comprising:a stationary diffuser, wherein the diffuser includes a diffuser hub and a plurality of diffuser vanes; and an impeller hub, wherein the impeller hub includes a centrally disposed eye;', 'a plurality of impeller vanes; and', 'wherein the impeller is configured to encourage mixing of two-phase fluids at the eye of the impeller hub., 'a rotatable impeller, wherein the impeller comprises2. The centrifugal pump of claim 1 , wherein the plurality of impeller vanes further comprise:a series of primary impeller vanes extending radially outward from the eye of the impeller hub; anda series of secondary impeller vanes that extend radially outward from a middle portion of the impeller hub.3. The centrifugal pump of claim 1 , wherein one or more of the plurality of impeller vanes includes at least one slot.4. The centrifugal pump of claim 1 , wherein one or more of the plurality of impeller vanes is split into a central portion and a spaced-apart radial portion.5. The centrifugal pump of claim 1 , wherein the impeller includes an upstream side and a ...

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Номер записи: 68
26-06-2014 дата публикации

BLOWER FAN

Номер: US20140178194A1
Автор: FUKUSHIMA Kazuhiko, HORISE Kyoko, Ishigami Shinya, Nagai Takahiro, TAMAOKA Takehito
Принадлежит: NIDEC CORPORATION

In a blower fan according to a preferred embodiment of the present invention, a side wall portion includes a tongue portion arranged to project between an air outlet and an impeller. A side surface of the tongue portion includes a tongue portion tip arranged to touch a first imaginary plane including a central axis; a first tongue portion side surface arranged to extend from the tongue portion tip along an outer envelope of the impeller; and a second tongue portion side surface arranged to extend from the tongue portion tip toward a side edge, the side edge being a line of intersection of the air outlet and the side wall portion. The second tongue portion side surface is arranged to cross a second imaginary plane including the central axis and touching the side edge. 1. A blower fan comprising:an impeller centered on a central axis extending in a vertical direction;a motor portion arranged to rotate the impeller about the central axis; anda housing arranged to house the impeller; wherein a lower plate portion arranged to cover a lower side of the impeller, and arranged to have the motor portion fixed thereto; and', 'a side wall portion arranged to cover a lateral side of the impeller;, 'the housing includesthe lower plate portion or an upper plate portion arranged to cover an upper side of the impeller includes an air inlet;the upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air channel portion arranged to surround the impeller;the upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on the lateral side of the impeller;the air outlet is planar and parallel to the central axis, and includes one of an edge of the upper plate portion, a pair of edges of the side wall portion, and an edge of the lower plate portion that is closest to the central axis;the side wall portion includes a tongue portion arranged to project between the air outlet and the ...

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Номер записи: 69
16-04-2015 дата публикации

DUAL CHANNEL COMPLIANT TURBINE PUMP

Номер: US20150104288A1
Автор: Lin Chih M., Ordway Bruce B., Watkins William J.
Принадлежит:

A pump has a housing that defines a pump chamber () with a fluid inlet and outlet (). An impeller () is mounted for rotation in the pump chamber. A raceway () is in floating axial relationship with the impeller and divides the pump chamber into an inlet chamber (), an impeller chamber () and a discharge chamber (). The raceway has preferably two flow channels, in separated end-to-end arrangement. Each flow channel has an inlet passage and an outlet passage, establishing a fluid conduit from the inlet chamber to the impeller chamber and then to the discharge chamber. A spring () provides resistance to axial movement of the raceway away from the impeller. A seal chamber () formed on the raceway and pressurized by the fluid, urges the raceway towards the impeller. 1. A pump , comprising:a housing, defining a pump chamber therewith, the housing having a fluid inlet to, and a fluid outlet from, the pump chamber;an impeller, mounted for rotation about an axis thereof in the pump chamber; on a surface thereof facing the impeller, at least two flow channels, arranged in a separated end-to-end manner along an arc at a fixed radial distance from an axis of the impeller;', 'an inlet passage and an outlet passage for each flow channel, the inlet passage providing a fluid conduit through the raceway from the inlet chamber to a first end of the flow channel and the outlet passage providing a fluid conduit from a second end in the flow channel to a discharge channel associated with the discharge chamber;', 'a seal chamber, formed on the first surface and pressurized by fluid from the outlet passage, the pressure in the seal chamber urging the raceway towards the impeller; and, 'a raceway, in floating axial relationship with the impeller in the pump chamber, the raceway effectively dividing the pump chamber into an inlet chamber, an impeller chamber and a discharge chamber, the raceway comprisinga means for resisting axial movement of the raceway away from the impeller.2. The pump ...

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Номер записи: 70
13-04-2017 дата публикации

Rotary Blood Pump With Opposing Spindle Magnets, Bore And Drive Windings

Номер: US20170100528A1
Автор: Lancisi David M., Wampler Richard K.
Принадлежит: Thoratec Corporation

Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chanber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood. 1. A centrifugal blood pump comprising:a pump housing defining a pumping chamber;a center post extending into said pumping chamber;a rotor configured to rotate around said center post;said rotor being biased axially in a first direction when said rotor is in a non-rotating state;a plurality of contoured surfaces disposed between said housing and said rotor so as to create a hydrodynamic bearing which generates forces in a direction parallel to said first direction when said rotor is in a rotating state;a passive axial magnetic bearing supportive of said rotor;a plurality of drive magnets disposed in said rotor;said passive axial magnetic bearing being adjustable so as to modify the bias of said rotor in said first direction.2. A pump according to claim 1 , wherein said contoured surfaces are curved and tapered ramps.3. A pump according to claim 2 , wherein said contoured surfaces are disposed on said rotor.4. A pump according to claim 1 , wherein said passive axial magnetic bearing comprises a center post component and a rotor component claim 1 , one of which is axially adjustable relative to the other.5. A pump according to wherein said hydrodynamic bearing generates forces in a direction parallel and opposite to said first direction when said rotor is in a rotating state.6. A pump according to claim 4 , wherein said rotor ...

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Номер записи: 71
23-04-2015 дата публикации

WATER PUMP

Номер: US20150110653A1
Автор: KIM Byung Soo
Принадлежит:

A water pump includes: a lower casing; a shaft fixed to the center of the lower casing; a stator disposed in the lower casing; an outer rotor that is arranged at a predetermined gap to the outer circumferential surface of the stator and is rotatably supported on the fixed shaft; an upper casing that is sealably mounted on an upper side of the lower casing in which an inlet and an outlet are formed; an impeller that is disposed in the upper casing and that is rotatably supported on the fixed shaft; and a power transmission unit that is installed between the impeller and the rotor and transmits the rotational force of the rotor to the impeller by a magnetic force, to prevent water from being introduced into the lower casing, and to allow the fixed shaft to rotatably support the rotor, as well as to rotatably support the impeller. 1. A water pump comprising:a lower casing;a fixed shaft fixed to the center of the lower casing;a stator disposed in the lower casing;an outer rotor that is arranged at a predetermined gap to the outer circumferential surface of the stator and is rotatably supported on the fixed shaft;an upper casing that is sealably mounted on an upper side of the lower casing in which an inlet and an outlet are formed;an impeller that is disposed in the upper casing and that is rotatably supported on the fixed shaft; anda power transmission unit that is installed between the impeller and the rotor and transmits the rotational force of the rotor to the impeller by a magnetic force.2. The water pump of claim 1 , wherein a cover member is sealably mounted on the opened lower surface of the lower casing claim 1 , a printed circuit board is mounted on the inside of the cover member claim 1 , and a terminal is mounted on the outside of the cover member claim 1 , wherein the terminal is integrally formed with the cover member by insert-molding of the cover member.3. The water pump of claim 1 , wherein a shaft fixing unit to which the fixed shaft is fixed is formed ...

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Номер записи: 72
02-06-2022 дата публикации

Micro Water Pump

Номер: US20220170479A1
Автор: Xu Detao, Yang Sensen
Принадлежит:

The present disclosure provides a micro water pump, including: a pump body having a cavity, an inlet communicating with the cavity, and an outlet communicating with the cavity; a drive mechanism installed on the pump body for driving liquid from the inlet into the cavity and discharging from the outlet. The pump body includes a base, an upper cover engaging with the base for forming the cavity, and a barrier member. The upper cover includes a fixed wall located in the cavity. The barrier member protrudes from the fixed wall for preventing the drive mechanism from colliding and rubbing with the fixed wall during rotation. By virtue of the configuration, improved heat-dissipation performance is performed. 1. A micro water pump , comprising:a pump body having a cavity, an inlet communicating with the cavity, and an outlet communicating with the cavity;a drive mechanism installed on the pump body for driving liquid from the inlet into the cavity and discharging from the outlet; whereinthe pump body comprises a base, an upper cover engaging with the base for forming the cavity, and a barrier member; the upper cover comprises a fixed wall located in the cavity; the barrier member protrudes from the fixed wall for preventing the drive mechanism from colliding and rubbing with the fixed wall during rotation.2. The micro water pump as described in further including a rotating shaft formed by the base claim 1 , wherein the drive mechanism comprises an impeller located in the cavity for being rotatably connected with the rotating shaft claim 1 , a rotor engaged with the impeller claim 1 , and a stator mounted on the base for driving the rotor to rotate; and claim 1 , the impeller is opposite to the barrier member.3. The micro water pump as described in claim 2 , wherein the fixed wall defines a fixing slot; the barrier member is located in the fixing slot and protrudes from a surface of the fixed wall along the rotation axis of the impeller; a projection of the barrier member ...

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Номер записи: 73
21-04-2016 дата публикации

ELECTRONIC COOLING WATER PUMP WITH FLOATING IMPELLER

Номер: US20160108919A1
Автор: Chen Feng, Dai Hongming, Ye Feifei, Zhu Jinshun
Принадлежит:

An electronic cooling water pump with a floating impeller for a motor vehicle. The mechanism includes a support or housing, a stator, a water pump cover, a socket injection molding, a controller (or circuit board), and a rear cover. A rotor impeller injection molding is positioned at the center of the stator and floats when the water pump is operating. The magnetic field generated by the stator and the magnetic field generated by the permanent magnets in the rotor impeller injection molding turn the motor impeller injection molding at a certain rotation speed, so that the impeller does work on coolant, and also make the rotor impeller injection molding float automatically in the center of the stator. Bearings are eliminated and friction losses and pump noise are minimized. 1. A floating impeller structure for a motor vehicle cooling water pump , comprising a stator member , an electric machine shaft member , a rotor impeller injection molding , and a plurality of permanent magnets wherein said rotor impeller molding has an open central core for positioning of said shaft member; andwherein the magnetic effect of the permanent magnets in said motor impeller injection molding positions said permanent magnets centrally in the member.2. The floating impeller structure for a motor vehicle cooling water pump as claimed in claim 1 , wherein said rotor impeller injection molding comprises a water pump impeller and an electric machine rotor claim 1 , said electric machine rotor comprising said plurality of permanent magnets claim 1 , a permanent magnet support claim 1 , and a permanent magnet protective cover.3. The floating impeller structure for a motor vehicle cooling water pump as claimed in wherein said permanent support is positioned centrally both radially and longitudinally in said stator member.4. The floating impeller structure for a motor vehicle cooling water pump as claimed in wherein said water pump impeller comprises a plurality of blade members.5. The floating ...

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Номер записи: 74
20-04-2017 дата публикации

PUMP FOR CONVEYING A HIGHLY VISCOUS FLUID

Номер: US20170107995A1
Автор: LIGHTHEART Barry
Принадлежит:

A pump for conveying a highly viscous fluid includes a casing with at least a first inlet and an outlet for the fluid, an impeller for conveying the fluid from the inlet to the outlet. The impeller is arranged on a rotatable shaft for rotation around an axial direction, and includes a front shroud facing the first inlet of the pump. The casing includes a stationary impeller opening for receiving the front shroud of the impeller and having a diameter. The front shroud and the stationary impeller opening form a gap having a length in the axial direction, the ratio of the length of the gap and the diameter of the impeller opening is at most 0.092. 1. A pump for conveying a highly viscous fluid ,. comprising:a casing with at least a first inlet and an outlet for the fluid; andan impeller configured to convey the fluid from the inlet to the outlet, the impeller being arranged on a rotatable shaft so as to be rotatable in an axial direction, and comprising a front shroud facing the first inlet of the pump, the casing including a stationary impeller opening configured to receive the front shroud of the impeller and having a diameter, the front shroud and the stationary impeller opening forming a gap having a length in the axial direction, and the ratio of the length of the gap and the diameter of the impeller opening being at most 0.092.2. A pump in accordance with claim 1 , wherein the ratio of the length of the gap and the diameter of the impeller opening is at most 0.073.3. A pump in accordance with claim 1 , wherein the ratio of the length of the gap and the diameter of the impeller opening is at most 0.037.4. A pump in accordance with claim 1 , wherein the ratio of the length of the gap and the diameter of the impeller opening is at least 0.0001.5. A pump in accordance with claim 1 , wherein a radial clearance between the front shroud and the impeller opening is at most 0.0045 times the diameter of the impeller opening.6. A pump in accordance with claim 1 , wherein ...

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Номер записи: 75
20-04-2017 дата публикации

Pump for conveying a highly viscous fluid

Номер: US20170107996A1
Автор: Arnaldo Rodrigues
Принадлежит: SULZER MANAGEMENT AG

A pump for conveying a highly viscous fluid includes a casing with at least a first inlet and an outlet for the fluid, and an impeller for conveying the fluid from the inlet to the outlet. The impeller is arranged on a rotatable shaft for rotation around an axial direction, and includes a front shroud facing the first inlet of the pump. The casing includes a stationary impeller opening for receiving the front shroud of the impeller and has a diameter. The front shroud and the stationary impeller opening form a gap having a width in a radial direction perpendicular to the axial direction, and the ratio of the width of the gap and the diameter of the impeller opening is at least 0.0045.

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Номер записи: 76
29-04-2021 дата публикации

HIGH-POWERED SANITARY PUMP

Номер: US20210123455A1
Автор: Lee Hyung Bok
Принадлежит:

A high-powered sanitary pump includes an impeller () axially mounted inside a case () and rotating by a motor (M) in order to inhale and discharge fluid by a rotational centrifugal force of the impeller. The impeller () has discharge pipes () radially connected to the cylindrical inhalation groove part () so as to be able to run at low noise and at low vibration and provide high performance with high pump-up head and flow rate while inhaling and discharging fluid not by forced pressure that forcedly pushes the fluid by a conventional rotor blade but by pressure inducing a gentle flow, by high pressure or by vacuum pressure. 1. A high-powered sanitary pump comprising:{'b': '10', 'a case (); and'}{'b': 20', '2', '11', '12', '20', '21', '11', '22', '22, 'i': 'a', 'an impeller () axially combined with a driving shaft () of a motor (M) inside the case so that fluid is induced to an inlet () at the front of the case and is discharged to an outlet () on the circumference of the case by centrifugal force through rotation of the impeller, the impeller () including a cylindrical inhalation groove part () formed at the rear of the inlet () of the case and discharge pipes () radially formed on the circumference of the inhalation groove part and respectively having discharge holes (),'}{'b': 30', '2', '10', '50', '31, 'wherein the front of a cover housing () for covering the outside of the driving shaft () of the motor and the rear of the case () are coupled with each other by assembly bolts (), and coupling holes () of the cover housing are formed in a long hole shape and the cover housing is coupled with the case while the coupling holes are rotated between the assembly bolts, and'}{'b': 10', '13', '15', '12', '13', '14', '55', '56', '15', '14', '12, 'wherein the case () includes an assembly stepped groove () formed at the front thereof and a cover () having the outlet () is inserted and coupled to protrude out of the assembly stepped groove (), and a screw hole () formed on ...

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Номер записи: 77
11-04-2019 дата публикации

SLIM PUMP STRUCTURE

Номер: US20190107122A1
Автор: Shen Meng
Принадлежит:

A slim pump structure includes a case, a rotor assembly, a flow guide plate, a stator assembly and an enclosure member. The case has a first side and a second side. The first side is formed with a pump chamber. A partitioning section partitions the pump chamber into a first chamber and a second chamber. A pivotal section upward extends from the second chamber. A center of the pivotal section is formed with a bearing hole. The second side is recessed to form a cavity corresponding to the pivotal section. Multiple axial ribs are formed on a circumference of the cavity at intervals. Each two adjacent ribs define a gap therebetween. The rotor assembly is received in the second chamber. The flow guide plate covers the second chamber so as to uncommunicate the second chamber from the first chamber. The stator assembly is correspondingly disposed on the case. 1. A slim pump structure comprising:a case having a first side and a second side, the first side being formed with a pump chamber, a partitioning section partitioning the pump chamber into a first chamber and a second chamber, a pivotal section upward extending from the second chamber, a center of the pivotal section being formed with a bearing hole, the second side being recessed to form a cavity corresponding to the pivotal section, multiple axial ribs being formed on a circumference of the cavity at intervals, each two adjacent ribs defining a gap therebetween;a rotor assembly received in the second chamber, the rotor assembly having a hub and a blade wheel, a rotary shaft downward extending from the hub, the rotary shaft being inserted in the bearing hole, a flow way being annularly formed on one side of the blade wheel, the flow way communicating with the first and second chambers;a flow guide plate disposed on an outer circumference of the rotor assembly to cover the second chamber so as to uncommunicate the second chamber from the first chamber;a stator assembly received in the cavity, the stator assembly ...

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Номер записи: 78
17-07-2014 дата публикации

LIQUID PUMP

Номер: US20140199165A1
Автор: Pohler Donald M.
Принадлежит: LIBERTY PUMPS INC.

A pump for pumping liquids containing entrained solids. The pump is comprised of a volute surrounding an impeller comprising vanes that are self-cleaning. The outer surfaces of the vanes are coplanar and define a first plane and have a leading edge. The volute is comprised of a planar mating surface defining a second plane parallel to the first plane of the rotary impeller. The planar mating surface is proximate to the outer surfaces of the vanes and is comprised of a plurality of channels extending radially from the inner perimeter to the outer perimeter thereof. Each channel includes a forward edge in the direction of impeller rotation. The channels are oriented such that when the impeller is rotated within the volute, for any vane, the leading edge of the vane traverses each channel progressively from the inner end of the channel to the outer end of the channel. 114-. (canceled)15. A pump comprising a unitary pump volute formed as a single piece and comprised of:a) a volute chamber comprised of an upper wall, a side wall, and a lower wall;b) a first annular structure extending upwardly from the upper wall of the volute chamber and comprising a cylindrical cavity comprised of a first annular side wall and a bottom wall;c) a cylindrical passageway extending from the bottom wall of the cylindrical cavity to the volute chamber; andd) a planar flange surrounding the first annular structure and having an inner perimeter;wherein the first annular side wall, the cylindrical passageway, and the planar flange have collinear central axes defining a common central axis;and wherein the bottom wall of the cylindrical cavity and the planar flange define planes parallel to each other and perpendicular to the central axes.16. The pump of claim 15 , further comprising a motor housing joined to the pump volute and comprising a lower planar surface contiguous with the planar flange of the pump volute.17. The pump of claim 15 , further comprising a second annular structure ...

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Номер записи: 79
25-04-2019 дата публикации

SUBMERSIBLE PUMP

Номер: US20190120233A1
Автор: QIU Shijun, WANG Jian
Принадлежит: Leo Group Pump (Zhejiang) Co., Ltd.

A submersible pump comprising a pump body and a top cover, wherein the pump body is detachably connected to the top cover, and it is sealed and isolated between the inside of the pump body and the inside of the top cover; the submersible pump also comprises a battery for powering the submersible pump and the battery is provided within the top cover. The submersible pump described in the disclosure is easy to use and carry. 1. A submersible pump , comprising a pump body and a top cover , wherein the pump body is detachably connected to the top cover , and it is sealed and isolated between the inside of the pump body and the inside of the top cover; andthe submersible pump also comprises a battery for powering the submersible pump, and the battery is provided within the top cover.2. The submersible pump according to claim 1 , further comprising a battery box claim 1 , wherein the battery box is provided within the top cover and the battery is embedded in the battery box.3. The submersible pump according to claim 2 , wherein the battery box comprises a battery box body with an opening claim 2 , a battery box cover and a first screw; a first hollow stud is arranged on an inner surface of the top cover; anda first screw hole is arranged on the battery box body and a second screw hole is arranged on the battery box cover, wherein the first screw passes through the second screw hole and the first screw hole to threadedly connect with the first hollow stud; ora first screw hole is arranged on the battery box body, wherein the first screw passes through the first screw hole to threadedly connect with the first hollow stud, and the battery box cover is fit with the batter box body by snap-fit connection.4. The submersible pump according to claim 3 , wherein a second hollow stud is provided on the outer sidewall of the battery box body claim 3 , the first screw hole is arranged on the center of the second hollow stud claim 3 , and the first screw is capable of engaging with ...

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Номер записи: 80
16-04-2020 дата публикации

IMPELLER FOR ELECTRIC WATER PUMP

Номер: US20200116151A1
Автор: KIM Byeung Jin, KIM Joon Seup, PAE Wan Sung
Принадлежит:

The present invention relates to an impeller for an electric water pump capable of preventing a cavitation from occurring in the impeller according to the related art and improving a flow restriction in the impeller by changing an internal structure of the impeller in consideration of a flow of a coolant introduced into the impeller. The impeller for an electric water pump, includes: an inlet member formed in a pipe shape extending to allow a fluid to be introduced; an upper member connected to one end of the inlet member, extending to one side, and having an inner diameter increasing toward the one side; an extension member outwardly extending from one end of the upper member; and a lower impeller member coupled to an upper impeller member formed by the inlet member, the upper member, and the extension member to form a discharge space from which the fluid is discharged. 1. An impeller for an electric water pump , comprising:an inlet member formed in a pipe shape extending to one side to allow a fluid to be introduced;an upper member connected to one end of the inlet member, extending to one side, and having an inner diameter increasing toward the one side;an extension member outwardly extending from one end of the upper member; anda lower impeller member coupled to an upper impeller member formed by the inlet member, the upper member, and the extension member to form a discharge space from which the fluid is discharged.2. The impeller for an electric water pump of claim 1 , wherein a length of the extension member is 40 to 70% of a height of the discharge space in which the extension member is positioned.3. The impeller for an electric water pump of claim 1 , wherein a portion at which the upper member and the extension member are connected to each other is formed in a curved surface.4. The impeller for an electric water pump of claim 1 , wherein an edge portion of the lower impeller member and the extension member are parallel with each other.5. The impeller for ...

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Номер записи: 81
16-04-2020 дата публикации

CENTRIFUGAL PUMP ASSEMBLY

Номер: US20200116161A1
Автор: BLAD Christian, Blad Thomas
Принадлежит:

A hydraulic construction unit includes a centrifugal pump assembly which includes an electrical drive motor and at least one impeller which is driven by the electric drive motor. At least one valve element is arranged such that the valve element is movable by way of a fluid flow which is created by the impeller. At least one section of a wall delimits a flow path in the hydraulic construction unit and is configured to be movable as a moveable section. The movable section of the wall is part of the valve element or is connected to the valve element for movement. The movable section is movable so as to be at least partly effected by friction forces of a fluid flow which runs along the wall. 1. A hydraulic construction unit with a centrifugal pump assembly comprising:an electrical drive motor;at least one impeller which is driven by the electrical drive motor;at least one valve element arranged to be movable by a fluid flow which is created by the impeller; anda wall delimiting a flow path in the hydraulic construction unit, the wall comprising at least one moveable wall section that is part of the valve element or is connected to the valve element for movement, wherein a movement of the movable wall section is at least partly effected by friction forces of fluid flow running along the wall.2. A hydraulic construction unit according to claim 1 , wherein the at least one movable wall section of the wall is arranged to be movable parallel to the fluid flow which runs along the wall.3. A hydraulic construction unit according to claim 1 , wherein the at least one movable wall section of the wall delimits a flow path which extends from the centrifugal pump assembly at a delivery side.4. A hydraulic construction unit according to claim 1 , wherein the at least one movable wall section of the wall delimits a flow path which extends from the centrifugal pump assembly at a suction side.5. A hydraulic construction unit according to claim 1 , wherein the movable wall section of ...

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Номер записи: 82
14-05-2015 дата публикации

Water level flow speed-increasing generating station, power station, water supply station, and offshore floating city

Номер: US20150132151A1
Автор: Dan Fang, Fang Fang, Lei Wang, Yafeng Zhao, Zupeng Fang
Принадлежит: Individual

The present invention relates to the field of hydraulic machinery, and relates to, by using the law of motion conversion and Bernoulli's equation, a generating station formed with a water level speed-increasing water tunnel set on a special ship or offshore floating city increasing a natural flow velocity V1≦1 msec of a water source to a high speed of V2≧200 msec to propel a turbine, and drive a generator; a power station formed with the turbine driving various load machinery; and a water supply station formed with an outlet of the speed-increasing water tunnel being connected to a lift tube. Hence, the present invention can replace high dams of a small number, to convert planar flow dynamics of wide rivers, seas, and oceans into inexhaustible, cheap, clean, and sustainable energy, which is a major theme project of the third industrial revolution.

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Номер записи: 83
12-05-2016 дата публикации

Pump Priming Assemblies

Номер: US20160131140A1
Автор: Khan Mir, Kobryn Alexander, Montondo Whitney, Saeger Nic
Принадлежит:

An assembly for indicating and communicating a priming charge to a fluid pump to establish self-sustained operation of the fluid pump is disclosed. The priming assembly includes an enlarged inlet associated with a fluid priming chamber and an outlet that is in fluid communication with the working fluid passage associated with the pump. The priming assembly includes one or more of a cap or valve assembly associated with isolating the pump chamber from atmosphere and preferably includes indicia associated with use and/or operation of the priming assembly. 1. A priming assembly for use with portable pump assemblies , the priming assembly comprising:a body having a first end that is constructed to cooperate with a pump housing of a portable pump and a second end that is offset from the first end; anda chamber defined by the body and extending between the first end and the second end of the body, the chamber defining a cross-sectional area associated with the first end of the body that is less than a cross-sectional area of the chamber associated with the second end of the body.2. The portable pump priming assembly of further comprising a cover that removably cooperates with the second end of the body.3. The portable pump priming assembly of wherein the cover threadably cooperates with the second end of the body.4. The portable pump priming assembly of further comprising a valve assembly disposed proximate the first end of the body and configured to be movable between an open configuration and a closed configuration.5. The portable pump priming assembly of wherein the valve assembly further comprises at least one of a plunger claim 4 , a ball valve claim 4 , and a buoyant valve body.6. The portable pump priming assembly of further comprising an actuator associated with the valve assembly and disposed outside the body.7. The portable pump priming assembly of further comprising an indicia associated with operation of the pump priming assembly wherein the indicia is formed ...

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Номер записи: 84
12-05-2016 дата публикации

MAGNETIC LEVITATED PUMP

Номер: US20160131141A1
Автор: Barada Toshimitsu, Mori Satoshi, OHASHI Tomonori, SATO Ichiju, SOBUKAWA Hiroshi
Принадлежит: EBARA CORPORATION

A magnetic levitated pump that does not cause pulsation of a pumped liquid and can suppress the generation of particles, which are liable to be produced by contact of a sliding part, is disclosed. The magnetic levitated pump for magnetically levitating an impeller housed in a pump casing includes a motor configured to rotate the impeller, and an electromagnet configured to magnetically support the impeller. The motor and the electromagnet are arranged so as to face each other across the impeller, and the motor is arranged on the opposite side of a suction port of the pump casing. 1. A magnetic levitated pump with an impeller housed in a pump casing and to be magnetically levitated , the magnetic levitated pump comprising:a motor configured to rotate the impeller;an electromagnet configured to magnetically support the impeller;wherein the motor and the electromagnet are arranged so as to face each other across the impeller; andthe motor is arranged on the opposite side of a suction port of the pump casing.2. The magnetic levitated pump according to claim 1 , wherein the motor is a permanent magnet motor having a permanent magnet on the impeller side.3. The magnetic levitated pump according to claim 1 , wherein a ring-shaped permanent magnet is provided at an axial end portion of the impeller and a ring-shaped permanent magnet is provided at a position claim 1 , of the pump casing claim 1 , which radially faces the axial end portion of the impeller to allow the permanent magnet at the impeller side and the permanent magnet at the pump casing side to face each other in a radial direction claim 1 , thereby constructing a permanent magnetic radial repulsive bearing.4. The magnetic levitated pump according to claim 3 , wherein the permanent magnet on the impeller side and the permanent magnet on the pump casing side are positionally shifted in the axial direction.5. The magnetic levitated pump according to claim 1 , wherein a sliding bearing is provided between an axial ...

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Номер записи: 85
12-05-2016 дата публикации

INTAKE CHANNEL ARRANGEMENT FOR A VOLUTE CASING OF A CENTRIFUGAL PUMP, A FLANGE MEMBER, A VOLUTE CASING FOR A CENTRIFUGAL PUMP AND A CENTRIFUGAL PUMP

Номер: US20160131153A1
Автор: KOIVIKKO Matti, Virtanen Sami
Принадлежит:

An intake channel arrangement includes an intake channel. The intake channel includes a first end with a first inner diameter, and a second end with a second inner diameter, the second inner diameter being smaller than the first inner diameter, a cross-sectional flow area and an adapter section arranged between the first and second ends, a first channel portion with a surface and the first inner diameter, an annular convex curvature surface joining at an angle to the surface of the first channel portion, the angle being 90°-110° between the surface of the first channel portion and a tangent of the convex curvature surface having a tangent point in an intersection of the surface of the first channel portion and the convex curvature surface, the annular convex curvature surface reducing the cross-sectional flow area from the first inner diameter to the second inner diameter. 1. An intake channel arrangement for a volute casing of a centrifugal pump , comprising:an intake channel comprisinga first end with a first inner diameter, and a second end with a second inner diameter, the second inner diameter being smaller than the first inner diameter,a cross-sectional flow area and an adapter section arranged between the first end and the second end,a first channel portion with a surface and the first inner diameter,an annular convex curvature surface joining at an angle to the surface of the first channel portion, the angle being in a range of 90°-110° between the surface of the first channel portion and a tangent of the convex curvature surface having a tangent point in an intersection of the surface of the first channel portion and the convex curvature surface, the annular convex curvature surface reducing the cross-sectional flow area from the first inner diameter to the second inner diameter and the first inner diameter being chosen to correspond to a first predetermined inner diameter greater than the second diameter.2. The intake channel arrangement according to claim ...

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Номер записи: 86
11-05-2017 дата публикации

Portable Pump Systems, Chainsaw Accessories, and Chainsaw Pump Accessory Kits

Номер: US20170129124A1
Автор: Lindsay Blake Catlin
Принадлежит:

Centrifugal water pump systems are provided that can include: a chainsaw with a motor, a throttle, and a chainsaw bar; a water pump head with a suction pipe and a discharge pipe; and a coupling device configured to operably connect the chainsaw bar to the water pump head. Chainsaw accessories are also provided that can include a centrifugal pump configured to be coupled to the chainsaw bar. Chainsaw accessory kits are also provided that can include a centrifugal pump, stabilizer spikes, and a throttle control. Methods for using the chainsaws, pumps, and/or kits are also described. 1. A centrifugal water pump system comprising:a chainsaw with a motor, a throttle, and a chainsaw bar;a water pump head with a suction pipe and a discharge pipe; anda coupling device configured to operably connect the chainsaw bar to the water pump head.2. The system of wherein the coupling device engages both the chainsaw bar and the chain of the chainsaw.3. The system of wherein the coupling device couples the bar in an affixed position claim 2 , and the device movably couples the chain.4. The system of wherein the movable coupling of the chain provides mechanical power to the pump.5. The system of wherein a rotation of a chain of the chainsaw across the bar is over the upper portion of the bar and proceeds through an end of the bar to a lower portion of the bar and wherein the coupling device is fixedly attached to an inner portion of the bar and movably engages the chain at the lower portion of the bar.6. The system of wherein the coupling device is movably coupled to a rotating sprocket of the chainsaw bar.7. The system of further comprising stabilizer spikes coupled to the coupling device.8. A chainsaw accessory comprising a centrifugal pump configured to be coupled to the chainsaw bar.9. The accessory of further comprising stabilizer spikes coupled to the centrifugal pump.10. The accessory of wherein the stabilizer spikes include a platform to support the centrifugal pump claim 9 , ...

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Номер записи: 87
10-05-2018 дата публикации

High efficiency double suction impeller

Номер: US20180128271A1
Автор: Lorenzo Bergamini, Marco TORRESI, Tommaso CAPURSO
Принадлежит: Nuovo Pignone Srl, Nuovo Pignone Technologie Srl

A new double suction impeller, in particular for centrifugal pumps and hydraulic power recovery turbines, wherein the flow-path arrangement has inter-blade channels intersecting each other at the impeller's outer diameter so that the equivalent number of blades is doubled with respect to a conventional configuration obtained by the coupling of two single suction impellers.

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Номер записи: 88
10-05-2018 дата публикации

DUAL INLET VOLUTE, IMPELLER AND PUMP HOUSING FOR SAME, AND RELATED METHODS

Номер: US20180128272A1
Автор: Cooper Buford Alan, Mayleben Philip Anthony
Принадлежит:

Disclosed herein are a dual inlet volute with an impeller and pump for same, and related methods. In one form a pump is provided comprising a motor configured to rotate a shaft, an impeller operatively coupled to the shaft, and a volute housing the impeller, the volute having a first inlet, a second inlet, and a discharge in fluid communication with the first and second inlets. 1. A pump comprising:a motor configured to rotate a shaft;an impeller operatively coupled to the shaft; anda volute housing the impeller, the volute having a first inlet, a second inlet, and a discharge in fluid communication with the first and second inlets.2. The pump of wherein the second inlet is in fluid communication with the first inlet.3. The pump of wherein the second inlet is configured to vent air from the first inlet.4. The pump of wherein the impeller is a double impeller claim 1 , the double impeller having a first impeller configured to create a first type of flow and a second impeller configured to create a second type of flow claim 1 , the second type of flow being different from the first type of flow claim 1 ,wherein the first inlet configured to permit flow to the first impeller and the second inlet configured to permit flow to the second impeller.5. The pump of claim 4 , wherein the first impeller is a vortex impeller.6. The pump of claim 5 , wherein the second impeller is a centrifugal impeller.7. The pump of wherein the first and second impellers are integrally formed on opposite sides of a common body with the centrifugal impeller positioned or oriented above the vortex impeller.8. The pump of wherein the first and second impellers are both centrifugal impellers formed on opposite sides of a common body.9. The pump of wherein the first and second impellers are both vortex impellers formed on opposite sides of a common body.10. The pump of wherein the volute has a ring positioned to encircle the vortex impeller.11. The pump of wherein the volute defines an inner recess ...

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Номер записи: 89
10-05-2018 дата публикации

ELECTRIC PUMP

Номер: US20180128279A1
Автор: Ogawa Hiroomi
Принадлежит: AISIN SEIKI KABUSHIKI KAISHA

An electric pump includes: a casing; a shaft member whose one end portion is fixed to the casing; first and second bearing portions disposed to an outer circumferential side of the shaft member at positions close to the one end portion of the shaft member and the other end portion of the shaft member, respectively; a rotor accommodated in the casing and integrally rotating with the first and second bearing portions; an impeller fixed to the rotor at a position close to the other end portion; an impeller housing connected to the casing in a state where the other end portion is inserted into the impeller housing and accommodating the impeller; and a slide-contacting member disposed between the impeller housing and the second bearing portion and coming into slide-contact with the second bearing portion. 1. An electric pump comprising:a casing;a shaft member whose one end portion is fixed to the casing;a first bearing portion that is disposed to an outer circumferential side of the shaft member at a position close to the one end portion of the shaft member;a second bearing portion that is disposed to the outer circumferential side of the shaft member at a position close to the other end portion of the shaft member;a rotor that is accommodated in the casing and integrally rotates with the first bearing portion and the second bearing portion;an impeller that is fixed to the rotor at a position close to the other end portion of the shaft member;an impeller housing that is connected to the casing in a state where the other end portion of the shaft member is inserted into the impeller housing and that accommodates the impeller; anda slide-contacting member that is disposed between the impeller housing and the second bearing portion and comes into slide-contact with the second bearing portion,wherein the second bearing portion includes an outer circumferential portion that abuts onto an inner circumferential surface of the rotor in a state of being able to tilt with respect ...

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Номер записи: 90
02-05-2019 дата публикации

PUMP WITH INTEGRATED BYPASS MECHANISM

Номер: US20190128271A1
Автор: CAMPBELL Levi A., DAVID MILNES, DEMETRIOU Dustin, ELLSWORTH, JR. Francis R., JR. Michael J., KRUG, WERNEKE Brian
Принадлежит:

A pump is provided which includes a rotating element, and a volute housing having a fluid inlet and a fluid outlet. In operational state, the rotating element rotates, drawing fluid through the fluid inlet of the volute housing and expelling the fluid at a higher pressure through the fluid outlet. Further, the pump includes a bypass mechanism integrated, at least in part, within the volute housing and exposing in nonoperational state of the pump, a bypass path through, at least in part, the volute housing that allows the fluid to pass from the fluid inlet to the fluid outlet of the pump. 1. An apparatus comprising: a rotating element;', 'a volute housing having a fluid inlet and a fluid outlet, wherein in operational state of the pump, the rotating element rotates, drawing fluid through the fluid inlet of the volute housing, across the rotating element and expelling the fluid at a higher pressure through the fluid outlet of the volute housing; and', 'a bypass mechanism integrated, at least in part, with the volute housing and exposing in nonoperational state of the pump, a bypass path through the volute housing allowing the fluid to pass from the fluid inlet to the fluid outlet thereof., 'a pump, the pump comprising2. The apparatus of claim 1 , wherein the bypass mechanism comprises a spring disposed between the volute housing and the rotating element claim 1 , and in the operational state claim 1 , the higher pressure fluid pressurizes the rotating element opposite the fluid inlet of the volute housing claim 1 , forcing the rotating element to move towards the fluid inlet of the volute housing claim 1 , compressing the spring between the volute housing and the rotating element.3. The apparatus of claim 2 , wherein in the nonoperational state claim 2 , the spring moves the rotating element away from the fluid inlet of the volute housing claim 2 , exposing the bypass path for the fluid to flow through the volute housing.4. The apparatus of claim 3 , wherein in the ...

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Номер записи: 91
02-05-2019 дата публикации

IMPELLER BLADES STRUCTURE AND ROTOR ASSEMBLY USING SAME

Номер: US20190128276A1
Автор: Qiu Junchun, Yin Jianwu
Принадлежит:

An impeller blade structure includes a main body having a first through opening communicating a first side with an opposite second side of the main body. The main body is formed on the first side with angularly spaced block-like blades, which respectively include a first end contacting or not contacting with the first through opening, an opposite second end, and a first coupling section. Any two adjacent blades together define between them a passage. When a virtual line tangentially passes through a point on a circumference of the main body that is corresponding to one radially outer end of the blade, an acute included angle will be defined between the virtual line and the blade. With these arrangements, the blades produce less noise and are more durable for use when the impeller blade structure rotates. A rotor assembly including the impeller blade structure is also disclosed. 1. An impeller blade structure , comprising:a main body having a first side and an opposite second side and being formed with a first through opening, which communicates the first side with the second side; the main body including a plurality of blades formed on the first side, and the blades respectively including a first end, which can be in contact with or not in contact with a peripheral edge of the first through opening, and a second end, which is located opposite to the first end; the blades further respectively including a first coupling section, and having a first edge, a second edge and a third edge; the first and the second edge of each blade being spaced from each other and extended from the second end toward the first through opening, and the third edge being located at the first end with two opposite ends connected to the first and the second edge, such that the first, the second and the third edge together define a top surface of the blade; a radially outer end of the second edge being located corresponding to a point on a circumferential edge of the main body, such that a ...

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Номер записи: 92
19-05-2016 дата публикации

CENTRIFUGAL PUMP CASING WITH OFFSET DISCHARGE

Номер: US20160138607A1
Автор: Stirling Thomas E.
Принадлежит:

A pump casing having a casing body is configured with a discharge formed in the casing body where a midline of the discharge is offset from a tangent line of the casing body and offset from a centerline of the casing body, such that the midline of the discharge is located along a point between the defined centerline and defined tangent line of the casing body. 14-. (canceled)5. A pump casing for a centrifugal pump , comprising:a casing body having a circumferential portion defining the outer periphery of the casing body and a center defined relative to the circumferential portion;a discharge extending from the circumferential portion of the casing body, the discharge having a midline defining a fluid pathway for discharge of fluid from the casing body; anda cutwater having a leading edge;wherein, the casing body has a centerline that is determined when the casing body is in a vertical orientation with the discharge and the midline of the discharge oriented vertically, and when the centerline lies in a vertical plane, the centerline extending through the center of the casing body and being oriented parallel to a tangent line defined by the circumferential portion of the pump casing, and further wherein the midline of the discharge is positioned between the centerline and tangent line of the pump casing wherein the distance between the midline of the discharge and the centerline is from sixty percent to seventy percent of the distance between the centerline and the tangent line of the pump casing.6. The pump casing of claim 5 , wherein the distance between the midline of the discharge and the centerline is from sixty-two percent to sixty-eight percent of the distance between the centerline and the tangent line of the pump casing.7. The pump casing of claim 5 , wherein the leading edge of the cutwater is positioned at an angle to a horizontal axis line X positioned and extending through the center of the casing body when the midline of the discharge is in a vertical ...

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Номер записи: 93
18-05-2017 дата публикации

PUMP WITH FRONT DEFLECTOR VANES, WEAR PLATE, AND IMPELLER WITH PUMP-OUT VANES

Номер: US20170138367A1
Автор: Enterline Andrew, Enterline Bryan, Garvin James, Grompe Carl
Принадлежит:

A centrifugal pump including a pump chamber, a wear plate, and a rotatable impeller is disclosed. The wear plate has a suction inlet. The pump chamber includes a high pressure region around the impeller within the pump chamber. The impeller's front face has portion located adjacent the wear plate to form a recirculation zone in fluid communication with the high pressure region. Another portion of the impeller's front face forms a small running clearance between it and a portion of the wear plate. That running clearance is interposed between the recirculation zone and the suction inlet. The wear plate includes plural deflector vanes projecting into the recirculation zone. A portion of the front face of the impeller includes plural pump-out vanes in the recirculation zone. The deflector vanes cooperate with the pump-out vanes to expel abrasive particles and prevent them from collecting and eroding the running clearance. 1. A centrifugal pump for pumping a fluid containing abrasive particles , said pump comprising:a pump chamber,a wear plate, anda rotatable impeller,said wear plate being fixedly secured to said pump chamber and having a suction inlet forming a low pressure region configured for receipt of the fluid,said impeller having a front face and shaft rotatably supporting said impeller within said pump chamber,said pump chamber having a high pressure region located radially outward of said impeller,said shaft having a central axis about which said impeller rotates,said front face of said impeller having a first portion and a second portion, said first portion of said front face being located immediately adjacent a first portion of said wear plate to form a recirculation zone therebetween,said recirculation zone being in fluid communication with said high pressure region,said second portion of said front face being spaced apart from a second portion of said wear plate to form a small running clearance therebetween, said small running clearance being interposed ...

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Номер записи: 94
26-05-2016 дата публикации

PUMP AND METHOD FOR MIXED FLOW BLOOD PUMPING

Номер: US20160144089A1
Автор: Dur Onur, Reichenbach Steven H., Woo Yi-Ren
Принадлежит:

A blood pump includes a housing and a rotor within the housing configured to rotate along an axis. The rotor may include a hub, the hub having regions with blades and regions without blades. The regions without blades may have a constant outer diameter and may extend along at least one fourth the length of the hub. The regions with blades may have an increasing outer diameter. Blades may be disposed on a downstream end region of the hub and extend downstream of the hub. Blades may begin approximately halfway along the axial length of a motor stator located about a hub and extend downstream of the motor stator. Blades may have portions that produce axial fluid flow and radial fluid flow with improved flow characteristics. 1. A blood pump comprising:a housing; anda rotor within the housing configured to rotate along an axis, the rotor including:a hub that has an axial length, the hub having (i) a first region where no blades are located, the first region having a constant outer diameter and extending along at least one fourth of the length of the hub, and (ii) a blade region located downstream of the first region, wherein the outer diameter of the hub increases along the blade region in a downstream direction; andblades disposed on the blade region that are configured to produce axial fluid flow in the direction of the axis and radial fluid flow in a direction radially outward from the axis.2. The blood pump of claim 1 , wherein each of the blades extends along between one third and two thirds of the axial length of the hub.3. The blood pump of claim 1 , wherein the outer diameter of the hub increases with a linear taper over the blade region.4. The blood pump of claim 1 , wherein the outer diameter of the hub increases over the entire blade region.5. The blood pump of claim 1 , wherein each of the blades wraps around approximately 170 degrees of the hub about the axis.6. The blood pump of claim 1 , wherein the pump includes a motor stator having an upstream region ...

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Номер записи: 95
08-09-2022 дата публикации

CRANKSHAFT MOUNTED PUMP

Номер: US20220282661A1
Автор: Kroon Peter, Svensson Mattias
Принадлежит:

A system including an engine block and a crankshaft able to rotate around axis A, and a pump with an impeller, the impeller mounted coaxially to the crankshaft such that the crankshaft drives the impeller. The system can be part of an engine for a vehicle, and the pump can drive water or other coolant through the engine. 1. A system , comprising:an engine block and a crankshaft able to rotate around axis A, anda pump with an impeller, the impeller mounted coaxially to the crankshaft such that the crankshaft drives the impeller.2. The system of claim 1 , wherein the crankshaft has a first end claim 1 , and the impeller is mounted at or near the first end.3. The system of claim 1 , wherein the impeller is mounted adjacent to the engine block.4. The system of claim 1 , wherein the pump comprises a housing claim 1 , an inlet and an outlet.5. The system of claim 4 , wherein the housing is mounted to the engine block.6. The system of claim 5 , wherein the housing is mounted to the engine block with bolts.7. The system of claim 4 , wherein the housing is integral with the engine block.8. The system of claim 7 , wherein the housing comprises a lid.9. The system of claim 1 , wherein the impeller is mounted to the crankshaft via one or more of the following: a shrink fit claim 1 , a splined connection claim 1 , a friction gasket claim 1 , a press-fit claim 1 , and a friction washer.10. The system of claim 1 , wherein the pump is a water pump.11. The system of claim 1 , further comprising one or more seals.12. A method claim 1 , comprising:providing an engine block with a crankshaft; andmounting a pump with an impeller to the crankshaft coaxially with the crankshaft such that crankshaft rotation directly drives the impeller.13. The method of claim 12 , further comprising mounting a housing of the pump to the engine block.14. The method of claim 12 , further comprising arranging one or more seals between the pump and the crankshaft.15. The method of claim 12 , wherein the step ...

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Номер записи: 96
26-05-2016 дата публикации

WASHER PUMP APPARATUS FOR VEHICLE PROVIDED WITH IMPROVED WATER-PROOF STRUCTURE

Номер: US20160146225A1
Автор: Lee Jong Wook, Park Wi Yeong, Yoon Sung Jun
Принадлежит: DY AUTO CORPORATION

Provided is a washer pump apparatus for a vehicle, the washer pump apparatus having an improved waterproof structure. The water pump apparatus includes a pump housing including a washer liquid inlet, a washer liquid outlet, a closed lower portion, an impeller, and a motor configured to rotate the impeller, a terminal cap coupled to an upper portion of the pump housing and forming a waterproof structure, the terminal including a structure for connection to a waterproof connector, and an air vent for communication of an outer space of the terminal cap with an inner space, wherein a membrane member including multiple pores that block water molecules and allow passage of air molecules therethrough is placed in the air vent. 1. A washer pump apparatus for a vehicle , the washer pump apparatus having an improved waterproof structure and comprising:a pump housing comprising a washer liquid inlet, a washer liquid outlet, a closed lower portion, an impeller, and a motor configured to rotate the impeller;a terminal cap coupled to an upper portion of the pump housing and forming a waterproof structure, the terminal cap having a structure for connection to a waterproof connector; andan air vent for communication of an outer space of the terminal cap with an inner space,wherein a membrane member comprising multiple pores that block water molecules and allow passage of air molecules therethrough is placed in the air vent,the air vent is on a top surface of the terminal cap, anda roof structure is formed above the air vent, the roof structure being formed integrally with the terminal cap.2. The washer pump apparatus of claim 1 , further comprising a waterproof protrusion protruding upward from the top surface of the terminal cap in an edge of the air vent.3. The washer pump apparatus of claim 1 , further comprising a guide member under the membrane member claim 1 , the guide member preventing the membrane member from moving downwards.4. The washer pump apparatus of claim 1 , ...

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Номер записи: 97
24-05-2018 дата публикации

CUFF FOR AIR DELIVERY CONDUIT

Номер: US20180142690A1
Автор: EARL Nicholas Andrew, ROW Nathan John, VIRR Alexander
Принадлежит:

A cuff for an air delivery conduit includes a first end portion provided to a tube and a second end portion adapted to engage a tubular connector. The second end portion includes an annular bead for sealing and retention. 120-. (canceled)21. An air delivery conduit for delivery of a supply of pressurized air generated by a flow generator to a patient interface for treatment of sleep disordered breathing (SDB) with continuous positive airway pressure (CPAP) therapy , the air delivery conduit comprising:a tube having a first end and a second end;a first cuff having a proximal end portion connected to the first end of the tube and a distal end portion configured to receive a tubular connector; anda second cuff connected to the tube at the second end,wherein the first cuff is constructed of an elastomeric material,wherein the distal end portion further comprises an entry surface, the entry surface forming an opening to receive the tubular connector,wherein the first cuff further comprises a longitudinal axis and an internal annular surface formed about the longitudinal axis,wherein the distal end portion further comprises an annular bead forming an intermediate internal surface, the annular bead extending radially inward from the internal annular surface such that an internal annular surface diameter is greater than an intermediate internal surface diameter, and the annular bead configured to be deformed by the tubular connector to seal with an exterior surface of the tubular connector, andwherein when the annular bead is in an undeformed state the intermediate internal surface extends parallel to the longitudinal axis and the intermediate internal surface diameter is constant in a direction parallel to the longitudinal axis such that the tubular connector contacts the entire intermediate internal surface when connected to the first cuff.22. The air delivery conduit of claim 21 , wherein the distal end portion further comprises a stop surface positioned opposite the ...

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Номер записи: 98
17-06-2021 дата публикации

PUMP, IN PARTICULAR FOR A LIQUID CIRCUIT IN A VEHICLE

Номер: US20210180610A1
Автор: HUESER Theodor, IVANUT Ciprian Ionel, WILLE-RIESS Thorsten
Принадлежит: Hella GmbH & Co. KGaA

A pump, in particular for a fluid circuit in a vehicle, for example a coolant pump with a multi-part housing that has a pump chamber, wherein an impeller is arranged in the pump chamber, wherein the pump chamber is bounded by a pump housing and a further housing part of the multi-part housing, wherein the pump housing and the further housing part each have a flange surface that rest against one another, and wherein one of the two flange surfaces has at least one annular groove and the other of the two flange surfaces has at least one circumferential web which engages in the annular groove. 1. A pump for a fluid circuit in a vehicle , the pump comprising:a multi-part housing that has a pump chamber;an impeller arranged in the pump chamber; and{'b': '20', 'a pump housing and a further housing part () of the multi-part housing bounding the pump chamber,'}wherein the pump housing and the further housing part each have a flange surface that rest against one another, andwherein one of the two flange surfaces has at least one annular groove and the other of the two flange surfaces has at least one circumferential web, which engages in the annular groove.2. The pump according to claim 1 , wherein the pump housing has a flange on which the flange surface with the circumferential web is provided.3. The pump according to claim 2 , wherein the additional housing part has a flange at which a flange surface with an annular groove is provided.4. The pump according to claim 3 , wherein the flanges are fastened to one another by via screws.5. The pump according to claim 1 , wherein the at least one annular groove and the at least one circumferential web form a labyrinth seal in a radial direction.6. The pump according to claim 1 , wherein recesses differ from one another.7. The pump according to claim 1 , wherein the pump is a coolant pump. This nonprovisional application is a continuation of International Application No. PCT/EP2019/076566, which was filed on Oct. 1, 2019, and which ...

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Номер записи: 99
08-06-2017 дата публикации

LOW COST VENTRICULAR DEVICE AND SYSTEM THEREOF

Номер: US20170157309A1
Автор: AYRE Peter, Balakrishnan Komarakshi Rajagopalan, BEGG John
Принадлежит:

A blood pump device comprising: a centrifugal blood pump having: a pump housing defining an inlet to receive blood and direct blood onto an impeller, the pump housing having a top bezel and a central column directed into the middle of a cavity within the pump housing; the impeller is adapted, in use, to rotate in the cavity around the central column and to be suspended on a pivot bearing mounted between the middle of the lower surface of the impeller and the middle of the upper surface of the central column; the impeller is stabilised, in use, by the rotation of blades generating a centrifugal force acting on the blades in radial direction away from the central column. 1. A blood pump device comprising:a centrifugal blood pump having: a pump housing defining an inlet to receive blood and direct blood onto an impeller, the pump housing having a top bezel and a central column directed into the middle of a cavity within the pump housing; the impeller is adapted, in use, to rotate in the cavity around the central column and to be suspended on a pivot bearing mounted between the middle of the lower surface of the impeller and the middle of the upper surface of the central column; the impeller is stabilised, in use, by the rotation of blades generating a centrifugal force acting on the blades in radial direction away from the central column.2. The device of claim 1 , wherein the impeller includes a plurality of blades extending radially away from a centre of the impeller claim 1 , the blades to force blood received at the inlet through the pump housing and to the outlet.3. The device of claim 2 , wherein all of the blades are joined about a central pivot mount and wherein each blade is joined to an adjacent blade with an elongated arm.4. The device of claim 1 , wherein a drive unit is attached and secured against an outer lower surface of the pump housing and wherein a protrusion from the upper surface of the drive unit engages with respective recess in the outer lower ...

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Номер записи: 100