СПОСОБ РАБОТЫ ДВУХСТУПЕНЧАТОГО ЭЛЕКТРОНАСОСНОГО АГРЕГАТА

Изобретение относится к машиностроительной гидравлике, конкретно - к способу работы электронасосного агрегата (ЭНА) для систем терморегулирования самолетов и космических аппаратов. Способ работы ЭНА включает обеспечение циркуляции жидкости посредством электродвигателя (ЭД) с герметично разделенными корпусами из титана. Циркуляцию обеспечивают в следующей последовательности: входной патрубок, вход и выход правого рабочего колеса, идущий на один из переводных каналов, вход и выход левого рабочего колеса, идущий на другой переводной канал, выходной патрубок. Циркуляцию осуществляют относительно диафрагмы с герметично соединенным ее внешним периметром с обоймой, по герметичным составным каналам, один переводной канал выполняют на участках обоймы и втулки и соединяют им выход рабочей полости правого колеса и вход рабочей полости левого колеса, другой переводной канал выполняют на участках обоймы и корпуса ЭНА и соединяют им выход рабочей полости левого колеса и выходной патрубок корпуса ЭНА.

НАСОСНЫЙ АГРЕГАТ

Изобретение относится к насосным агрегатам, в частности к насосам с "мокрым" ротором с управляемой скоростью вращения, и может быть использовано в качестве циркуляционных насосов бытовых отопительных систем. Насосный агрегат (1) содержит лопастное колесо (12) с осью (R) ротора, расположенное в корпусе (11) насоса и приводимое электродвигателем со статором (14) и ротором (51). Ротор (51) расположен в кожухе (57) ротора, а статор (14) – в корпусе (13) статора. На корпусе (11) установлены кожух (57) посредством первого соединения и корпус (13) посредством второго соединения. Первое соединение расположено ближе к оси (R) ротора, чем второе соединение. Первое соединение обеспечено посредством крепежного элемента (16), который является соединительной гайкой, расположенной вокруг кожуха (57) и крепящей фланец (63) кожуха (57) к корпусу (11). Изобретение направлено на создание более компактной конструкции насосного агрегата. 14 з.п. ф-лы, 9 ил.

ФИКСАТОР НАСОСНОГО ПОДШИПНИКА

Группа изобретений относится к фиксатору (29) насосного подшипника для насоса влажного хода, причем фиксатор (29) насосного подшипника содержит радиально внутреннюю секцию (49), радиальный подшипник (37) с внутренней поверхностью (41) скольжения, выполненной с возможностью обеспечения смазочной пленки между поверхностью (41) скольжения и роторным валом (13) насоса (1), причем радиальный подшипник (37) установлен в радиально внутреннюю секцию (49), и радиально внешнюю секцию (51), продолжающуюся радиально наружу от секции (49). Секция (49) ограничивает по меньшей мере один первый аксиальный флюидный канал (45) для обеспечения первого пути (F1) флюидного потока в первом аксиальном направлении потока. По меньшей мере один канал (45) расположен на первом радиальном расстоянии (D1) от роторной оси (R), причем расстояние (D1) больше, чем радиус (D0) поверхности (41) скольжения. Секция (51) ограничивает по меньшей мере один второй аксиальный флюидный канал (47) для обеспечения возможности пути ...

ОХЛАЖДАЮЩЕЕ УСТРОЙСТВО НАСОСА, ПРЕДНАЗНАЧЕННОГО ДЛЯ ПЕРЕКАЧИВАНИЯ ЖИДКОСТИ

Motoranordnung mit einem Spalttopf

Motoranordnung (20) mit einem Außenstator (40), einer Rotoranordnung (30), einem Spalttopf (50) und einer Lageranordnung (36, 37) mit einem ersten Lager (36) und einem zweiten Lager (37),welche Rotoranordnung (30) einen Innenrotor (32) und eine Welle (31) aufweist und eine axiale Richtung (77) und eine radiale Richtung (78) der Motoranordnung (20) definiert,welche Motoranordnung (20) einen magnetischen Luftspalt (53) zwischen dem Außenstator (40) und dem Innenrotor (32) aufweist, welcher Spalttopf (50) ein Spaltrohrteil (51) und ein Spalttopfbodenteil (52) aufweist,welches Spaltrohrteil (51) einen Spaltrohrbereich (54) aufweist, welcher Spaltrohrbereich (54) sich durch den magnetischen Luftspalt (53) erstreckt, welcher Außenstator (40) um den Spaltrohrbereich (54) herum angeordnet ist,welches Spaltrohrteil (51) und welches Spalttopfbodenteil (52) sich in einem ersten vorgegebenen axialen Bereich (55) überlappen,wobei im ersten vorgegebenen axialen Bereich (55) eine Dichtung (60) zwischen ...

Umwaelz-Turbinenpumpe,insbesondere fuer Zentralheizungsanlagen

Water pump for cooling water circuit of IC engine for cars is located with motor completely inside lines and/or reservoir of cooling water circuit, in pipe enlargement of cooling line

A water pump for the cooling water circuit of an IC engine for cars which is driven by an electric motor is located with the motor (3) completely inside the lines and/or the reservoir (1) of the cooling water circuit. The pump (2) is located in a pipe enlargement of the cooling line and also in a reservoir inserted into the cooling water circuit. It is also located in the equalizing container of the cooling circuit and fastened in it in detachable fashion. The pump is a plunger pump.

Elektrischer Kreiselpumpenaufbau mit Benutzerschnittstellenvorrichtung

Ein elektrischer Kreiselpumpenaufbau (10), der Folgendes umfasst: einen Pumpenkörper (11), der aus einer Schnecke, und einer Einlassleitung (12) und einer Auslassleitung (13) besteht und einen nassen Bereich enthält; einen Elektromotor (14), enthalten in einem Einschlussgehäuse (16), wobei das Gehäuse (16) mit einem seiner Enden dem Pumpenkörper (11) zugewandt ist; einen Schaltkasten (19), der eine elektronische Leiterkarte (22) für die Steuerung des Elektromotors (14) enthält, wobei der Schaltkasten (19) dem Ende des Gehäuses (16) zugewandt ist, das demjenigen gegenüberliegt, welches dem Pumpenkörper (11) zugewandt ist; der elektrische Pumpenaufbau (10) umfasst eine elektronische Vorrichtung (23) zur Herstellung einer Schnittstelle für den Benutzer, die über dasselbe Stromversorgungskabel betrieben wird wie die elektrische Pumpe; zwischen der Schnittstellenvorrichtung (23) und der elektronischen Leiterkarte (22) wird eine Datenverbindung ohne Verwendung von Kabeln hergestellt.

Elektrisch angetriebene Axialpumpe

Pumpenrotor für eine Spaltrohrpumpe

Die Erfindung betrifft einen Pumpenrotor (26) für eine Spaltrohrpumpe. Der Pumpenrotor (26) umfasst einen einteiligen Grundkörper (32) mit einer Laufradgrundscheibe (34) und einer Rotoraufnahmebuchse (36) und eine Rotoreinheit (40) mit Rotormagneten, die auf der Rotoraufnahmebuchse (36) angeordnet ist.

CANNED MOTOR PUMP

Pump assembly

CIRCULATING PUMP

Improvements in or relating to impeller pumps,particularly for use in central heating installations

... 1,069,896. Centrifugal pumps. J. L. STULENS. May 14, 1964 [May 15, 1963; Jan. 30, 1964], No. 20108/64. Heading F1C. [Also in Division H2] To permit dismounting of the pump impeller and driving motor 8 in a heated-liquid circulating system, particularly a central heating installation, the flow is diverted, without stoppage, through a by-pass passage 10 by first closing a valve 11 on to a seating 4 and then a valve 15 on to a seating 18. This sequence of closing is assured by suitably arranging and dimensioning the valve hand-wheels 13, 17 as shown. The impeller discharges to a circular cavity 22 which communicates through an annular recess 21 with an outlet 19. Holes 26 communicating with a slot 25 containing a filter 27, as of felt, provide lubrication and cooling of the motor 8. The impeller blades may be symmetrical about their axes, or asymmetrical, Fig. 10 (not shown), to provide a different flow rate on reversal of the motor. The flow rate may be varied by the valve 11. The thickness ...

Improvements in or relating to the acceleration of a thermogravity circulation of liquids in a pipe or pipe systems

... 968,797. Closed liquid circulating systems for cooling transformers. H. G. BINDER. Feb. 27, 1963, No. 7781/63. Heading F4U. [Also in Division F1] In a method of increasing the rate of circulation of the cooling medium in an electric transformer thermo-gravity cooling system having a transformer tank connected by pipes to its cooling bank, a portion of the cooling medium is continuously withdrawn from the system by a pump or pumps and is continuously delivered back to the system in a direction and at a rate of flow such as to increase the rate of circulation of the cooling medium in the cooling system, and when the pump or pumps is out of action the circulation is provided exclusively by the thermo-gravity effect. A flow accelerator unit u, Fig. 4, comprising the pump and a Venturi-ring g, Fig. 3, is inserted in a pipe connecting the transformer tank t to the cooling bank which has a number of radiators q. Flanges m and n on the Venturi-ring g are connected to the pump, which may be of the ...

Plug-in unit for printed circuit boards

An electrical socket assembly, to be mounted on a printed circuit board 7 or similar support to form a plug-in unit, has a front plate 1 with openings 3 for plugs, a socket holder 4 integral with the rear of the front plate 1, and electrical sockets in the holder, accessible through the openings 3 in the front plate 1. The rear of the holder 4 is open so that different socket arrangements can be inserted. It is closed in use by a snap-on cover 6 with openings through which connection pins 5 of the sockets extend. ...

Improvements in circulating pump devices

... 743,739. Electric motors. RICHARD, A., and METRAL, C. July 3, 1953 [July 11, 1952; April 17, 1953], No. 18597/53. Class 35. [Also in Group XXVI] In an electric motor which drives a pump having a casing with an inlet and outlet, the stator is mounted within a fluid-tight compartment within the casing, and the rotor carries an impeller and is journalled around the compartment for rotation about an axis perpendicular to a line between the inlet and outlet. In the pump shown, which forms part of a central heating installation, the impeller blades 16 are formed in a flanged member 17 secured to the rotor 1 of the squirrel-cage driving motor by means of bolts 10 which form the conductors and hold the rotor laminations and the end rings 8, 9 together. The rings .8, 9 may be of copper, and the ring 9 forms part of a disc 11 which is mounted on a hollow shaft 12. The rotor 1 is separated from the stator 3 by means of a domeshaped partition 4 made of non-magnetic metal or of plastic material. A cover ...

PUMP

PROCEDURE FOR THE REGULATION OF A SUPPORT PUMP FOR FLUID HAULAGE SYSTEMS WITH PULSATILEM PRESSURE

Actuator for active chassis units of motor vehicles

Die Erfindung bezieht sich auf einen Aktuator für aktive Fahrwerke von Kraftfahrzeugen mit einer Elektroantriebsmaschine (1) und einer Pumpe (2). Um vorteilhafte Konstruktionsbedingungen zu schaffen, wird vorgeschlagen, dass die Pumpe (2) von der Elektroantriebsmaschine (1) ummantelt wird, dass die Pumpe (2) als hydraulische Kreiselpumpe mit zumindest einem ersten Laufrad (3) mit einem ersten Rotor (6), einem zweiten Laufrad (4) mit einem zweiten Rotor (7) und einem dritten Laufrad (5) mit einem dritten Rotor (8) ausgeführt ist. Aufgrund der Ummantelung der Pumpe (2) durch die Elektroantriebsmaschine (1) wird die insbesondere bei begrenzten Bauraumbudgets in Fahrwerken von Kraftfahrzeugen günstige Eigenschaft einer besonders kompakten und platzsparenden Einheit erzielt und die Elektroantriebsmaschine (1) wird durch ein durch die Pumpe (2) strömendes Fluid gekühlt. Im Vergleich zu Kolben- oder Flügelzellenpumpen etc. bewirkt der Einsatz einer als Kreiselpumpe ausgeführten Pumpe (2) weiterhin ...

Monitoring device for centrifugal pumps

Electrically propelled Motorpumpe

Centrifugal pump aggregate with a mechanism for the automatic production of a lubrication, a cool and an exhaust cycle

SIDE FLOW PUMP

METHOD FOR CONTROLLING AN ASSIST PUMP FOR FLUID DELIVERY SYSTEMS WITH PULSATILE PRESSURE

Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.

CANNED MOTOR PUMPS PRESSURIZED RECIRCULATION SYSTEM

A canned motor pump pressurized recirculation system which comprises a main unit and a recirculation line. The main unit includes a main pump, an auxiliary pump and motor means positioned between the main and the auxiliary pumps for driving the pumps. The recirculation line is positioned external of the main unit, and is connected thereto between the pumps. The recirculation line is adapted to pass fluid therethrough such that the fluid will be passed by the auxiliary pump through the motor means to the high pressure portion of the main pump.

METHOD FOR CONTROLLING THE POSITION OF A PERMANENT MAGNETICALLY SUPPORTED ROTATING COMPONENT

Since disruptive forces can be continuously exerted upon a rotor during a pulsatile flow through a pump with a magnetically mounted rotor (permanent magnets and addition control current coils), it is necessary to adjust position i.e modify axial rotor position very quickly. The control current should only result in small amounts of losses. According to the invention, the current is pulse-width modulated by the control current coils by means of a set value predetermined by a controller which is arranged downstream from a position sensing system. If the set value is high, it is switched to a higher voltage level and the real value of the position sensing system is stored for a defined period of time, respectively beginning with the switching flank of the control current, and the position sensing system is disconnected during said period of time.

METHOD FOR CONTROLLING THE POSITION OF A PERMANENT MAGNETICALLY SUPPORTED ROTATING COMPONENT

As especially at a pulsating flow through a pump with a magnetically supported rotor (permanent magnets and additional control current coils) continuous interference forces act on the rotor, the position control has to adjust the changed axial rotor position very quickly. On the other hand the control current should cause a low dissipation. According to the present method the current through the control current coils is pulse width modulatedly controlled by a desired value, set in a controller arranged behind the position sensory analysis mechanism and the actual value of the position sensory analysis is stored for a defined time interval, respectively starting latest with the pulse edge of the control current, and the position sensory analysis is stopped for this time interval.

Radial und axial wirkende, elektromotorisch angetriebene Umwälzpumpe.

Groupe comprenant une pompe de circulation entraînée par un moteur électrique.

Motopompe.

Zentrifugalförderaggregat.

Durch einen Spaltrohrmotor angetriebene, mehrstufige Kreiselpumpe

Durch einen Spaltrohrmotor angetriebene, mehrstufige Kreiselpumpe

Pompe de circulation, notamment pour installations de chauffage central

Radialpumpenaggregat mit selbsteinstellendem hydraulischem Kräfteausgleich

[...] DE [...] A sURGING[...][...].

CANNED MOTOR SUBMERGED PUMP.

Electric motor driven fluid pump, in particular for the forced lubrication of a manual transmission of a motor vehicle

Shielded scroll pump

Front shell for pump

Pump set of cooling loop for motor vehicle

A pump housing made of a magnetic and a non-magnetic material

For small-sized or medium-sized modular nuclear reactor of the main circuit of the motor driven centrifugal pump

CYLINDRICAL METAL SHAFT AND PARTIALLY COATED

L'invention se rapporte à un arbre (10) métallique, cylindrique et monobloc destiné à être disposé au centre d'un rotor (6) d'un moteur électrique d'une pompe de circulation de fluide pour être entraîné en rotation, caractérisé en ce que la surface cylindrique de l'arbre présente - une zone nue (12 ; 13), dite de soudage, et -de chaque côté de la zone de soudage, une zone traitée (14 ; 15), dite de friction.

Electrical motor, IN PARTICULAR FOR the DRIVE Of a PUMP HAS FLUID

DEVICE OF CAST SOLID PUMPING HAS AMBIVALENT OPERATION

POMPE A MOTEUR INCORPORE.

POMPE A MOTEUR INCORPORE1 COMPRENANT UN ARBRE CREUX4, OUVERT AUX EXTREMITES5, 6, CET ARBRE ETANT FABRIQUE A PARTIR D'UN TUBE A PAROI RELATIVEMENT MINCE. DES PARTIES7, 8 DE L'ARBRE4 SONT DE DIAMETRE REDUIT. UNE BILLE EN VA-ET-VIENT12 EST LOGEE DANS LA CAVITE ENTRE UNE PREMIERE PARTIE D'ARBRE8 ET UNE DEUXIEME PARTIE D'ARBRE7, LADITE PREMIERE PARTIE CONSTITUANT UN BOUT D'ARBRE ET COMPORTANT DES CANNELURES. LA BILLE VIENT EN BUTEE SUR DES SIEGES13, 14 RESULTANT DE LA REDUCTION DE DIAMETRE DES PARTIES D'ARBRE7, 8, DE SORTE QUE LA BILLE12 ET LES SIEGES13, 14 CONSTITUENT UNE VALVE. LA VALVE DE L'ARBRE CREUX4 EST REALISEE D'UNE MANIERE TRES SIMPLE PUISQUE LES SIEGES13, 14 PEUVENT ETRE FORMES SIMULTANEMENT A LA FABRICATION DES PARTIES D'ARBRE7, 8 DE DIAMETRE REDUIT.

MOTOR-DRIVEN CENTRIFUGAL PUMP FOR PRIMARY CIRCUIT SMALL OR MODULAR NUCLEAR REACTORS.

L'invention porte sur une motopompe centrifuge pour la circulation d'un fluide caloporteur dans un circuit primaire de réacteur nucléaire. La motopompe comprend un groupe moteur étanche (12), une partie hydraulique (13), et un arbre (17) immergé dans le fluide caloporteur, entrainé en rotation par le groupe moteur étanche (12), et pompant le fluide caloporteur au moyen d'un impulseur (22) de la partie hydraulique (13), solidaire de l'arbre (17). Le groupe moteur (12) comprend un stator sec (18) et un rotor immergé (19), monté solidaire sur l'arbre (17). La motopompe comprend également un volant d'inertie immergé (23), monté solidaire sur l'arbre (17), entre le rotor (19) du groupe moteur (12) et l'impulseur (22) de la partie hydraulique (13), permettant une durée de ralentissement minimum après coupure d'alimentation électrique; et un dispositif anti dévirage immergé, configuré pour bloquer mécaniquement la rotation de l'arbre (17) selon un sens prédéterminé.

Canned magnetic pump

Pump assembly

A pump assembly including an electric motor, a pumping element mounted in a pump chamber, the motor being connected to the pumping element such that activation of the motor causes movement of the pumping element which in turn causes pumping of fluid in the pump chamber, and a motor controller which includes at least one electrical or electronic component and which controls operation of the motor, wherein at least one electrical or electronic component of the motor controller is mounted on or in a wall of the pump chamber.

ELECTRONIC PUMP

An electronic pump is provided, which includes a rotor assembly. The rotor assembly includes an impeller and a rotor which are separately injection-molded respectively. The material for injection-molding the rotor includes a magnetic material, and the material for injection-molding the impeller does not include a magnetic material. The impeller includes a first fitting portion, the rotor includes a second fitting portion, the impeller and the rotor are cooperated by the first fitting portion and the second fitting portion, and the impeller and the rotor are fixed with respect to each other by a fixing device. In this way, the impeller and the rotor may be made respectively by different materials, and an ordinary plastic material may be employed for the impeller, which may reduce the cost of manufacturing material of the rotor assembly.

Multi-ribbed keyless coupling

A keyless coupling assembly for connecting concentric shafting components in a sealless pump comprises a first shafting member (50), a second shafting member (48) and a plurality of torque strips (80). The first shafting member comprises an annular body (74) and an inner surface (88) disposed within the annular body. The second shafting member comprises a cylindrical body (64) and an outer surface (90). The cylindrical body (64) is disposed within the inner surface (88) of the first shafting member. The outer surface encircles the cylindrical body and faces the inner surface. The plurality of torque strips is positioned between the outer surface and the inner surface to form anti-rotation grooves in the mating surface to prevent relative rotation between the first and second shafting members.

ЦЕНТРОБЕЖНЫЙ НАСОС ДЛЯ ПЕРЕМЕЩЕНИЯ ТЕКУЧЕЙ СРЕДЫ

FIELD: engines and pumps. SUBSTANCE: invention relates to pumps for movement of very hot or very cold media. Centrifugal pump comprises housing (2) having inlet (3) and outlet (4) for fluid medium, impeller (5) located in housing (2) with possibility of rotation around axial direction (A), for movement of fluid medium from inlet (3) to outlet (4), shaft (6) passing in axial direction (A), for driving wheel (5) into movement, as well as fixed guiding device (7) for directing fluid medium from wheel (5) to outlet (4). Apparatus (7) is connected to housing (2). Elastic compensating element (10) is installed between housing (2) and device (7), which is located around shaft (6). Shaft (6) can hold device (7) in the centered position relative to wheel (5) at radial movement relative to body (2). EFFECT: invention is aimed at creation of pump for pumping very hot or very cold media effectively preventing impairment of impeller centering caused by temperature effect. 15 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 737 931 C2 (51) МПК F04D 7/06 (2006.01) F04D 29/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 7/06 (2020.08); F04D 29/445 (2020.08) (21)(22) Заявка: 2017133096, 22.09.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 07.12.2020 (73) Патентообладатель(и): ЗУЛЬЦЕР МЭНЭДЖМЕНТ АГ (CH) 23.09.2016 EP 16190413.1 (43) Дата публикации заявки: 22.03.2019 Бюл. № 9 (45) Опубликовано: 07.12.2020 Бюл. № 34 (56) Список документов, цитированных в отчете о поиске: GB 926187 A, 15.05.1963. CH 443000 A, 31.08.1967. RU 2585994 C2, 10.06.2016. RU 2589735 C2, 10.07.2016. EP 2492511 A3, 26.08.2015. 2 7 3 7 9 3 1 (54) ЦЕНТРОБЕЖНЫЙ НАСОС ДЛЯ ПЕРЕМЕЩЕНИЯ ТЕКУЧЕЙ СРЕДЫ (57) Реферат: Изобретение относится к насосам для (2). Упругий компенсирующий элемент (10) перемещения очень горячих или очень холодных установлен между корпусом (2) и аппаратом (7), сред. Центробежный насос содержит корпус (2), ...

ГЕРМЕТИЧНЫЙ МНОГОСТУПЕНЧАТЫЙ ЦЕНТРОБЕЖНЫЙ ЭЛЕКТРОНАСОС

Герметичный многоступенчатый центробежный электронасос предназначен для перекачивания охлаждающей жидкости в контуре системы терморегулирования. Электронасос устроен следующим образом: рабочее тело попадает в насос через входной патрубок и далее на предвключенный шнек, затем попадает на лопатки центробежного колеса закрытого типа, после чего жидкость проходит через каналы кольцевого диффузора, охлаждая при этом статор электродвигателя, и попадает на лопатки второго центробежного колеса, пройдя петлевой направляющий аппарат, затем уходит из электронасоса через выходной патрубок. Техническим результатом данного изобретения является повышение ресурса работы электронасоса, в том числе при широком диапазоне температур и пониженном входном давлении. 2 ил.

НАСОСНЫЙ УЗЕЛ И СПОСОБ УПРАВЛЕНИЯ

Группа изобретений относится, в частности, к управляемым по скорости циркуляционным насосам с мокрыми роторами, используемым в системах отопления жилых домов. Насосный узел содержит насосный блок, приводной электродвигатель (203) для привода насосного блока и блок управления (201) для управления электродвигателем (203). Блок (201) содержит преобразователь (209) частоты, преобразователь (207) напряжения и контроллер (211). Конфигурация преобразователя (207) обеспечивает подачу входного напряжения в преобразователь (209). Входное напряжение является регулируемым в пределах диапазона напряжения между минимальным и максимальным входными напряжениями. Конфигурация контроллера (211) обеспечивает определение фактической потребляемой мощности по меньшей мере одного электродвигателя (203), преобразователя (209) и преобразователя (207) во время эксплуатации насосного блока. Конфигурация контроллера (211) обеспечивает настройку входного напряжения в зависимости от определяемой фактической потребляемой ...

ГЛАВНЫЙ ЦИРКУЛЯЦИОННЫЙ НАСОСНЫЙ АГРЕГАТ

Изобретение относится к насосам необъемного вытеснения и может быть использовано на АЭС в главных циркуляционных насосных агрегатах первого контура теплоносителя ядерной энергетической установки. Агрегат содержит вертикальный насос с нижним расположением рабочего колеса, нижний радиальный подшипник скольжения, размещенный на валу насоса над рабочим колесом и смазываемый перекачиваемой средой, торцовое уплотнение (24) вала, размещенное над нижним радиальным подшипником, и радиально-осевой подшипник, установленный в верхней камере электродвигателя. Гребень (15) радиально-осевого подшипника установлен на валу посредством конусной посадки и закреплен на его верхнем торце при помощи болтов (16) и нажимного фланца (17). Охлаждение радиально-осевого подшипника осуществляется водой от системы АЭС через винтовой насос, расположенный на верхнем торце гребня (15). Насос состоит из статорной и роторной втулок (21, 20) с винтовой нарезкой. Вода поступает из верхней камеры (10) электродвигателя в его ...

Fluidpumpe

Es wird eine elektrische Fluidpumpe in Halbaxialbauweise vorgeschlagen, deren Pumpengehäuse (32, 33, 34) zumindest zwei identische Pumpengehäuseteile (33, 34) aufweist. Dies reduziert die Anzahl unterschiedlicher Bauteile und somit die Kosten bei einem hohen zu verwirklichenden Wirkungsgrad.

Pumpengehäuse, Pumpe und wasserführendes Haushaltsgerät

Die Erfindung betrifft ein Pumpengehäuse für eine Pumpe (1) mit Nassläufermotor, das einlassseitig einen Sitz (12) für die Achse (10) des Nassläufermotors aufweist. Die Pumpe zeichnet sich dadurch aus, dass der Sitz (12) über einen einzigen Tragarm (13) an dem Pumpengehäuse (2) befestigt ist. Weiterhin werden eine Pumpe mit Nassläufermotor und ein wasserführendes Haushaltsgerät beschrieben.

Kreiselpumpenlaufrad

Die Erfindung betrifft ein Kreiselpumpenlaufrad (1) mit Pumpenflügeln (2) aus einem spritzgusstechnisch verarbeitbarem Kunststoffmaterial, für eine elektromotorische Kreiselpumpe, bestehend aus einem ein Lager (10) umfassenden Grundkörper (3), an welchem einerseits ein permanentmagnetischer Rotor (4) und andererseits eine Deckscheibe (5) anschließt, welche an den Grundkörper (3) montiert ist. Aufgabe der Erfindung ist es bei einem Kreiselpumpenrotor der eingangs genannten Gattung dafür zu Sorge zu tragen, dass er einfach aufgebaut ist, einen erhöhten Wirkungsgrad aufweist und wirtschaftlich herstellbar ist. Diese Aufgabe wird erfindungsgemäß durch das Kennzeichen des Anspruchs 1 gelöst.

Pump assembly for heating system for distribution of fluid flow, has mounting platform to accommodate required fittings, components, fasteners and connectors, where mounting platform consists of multiple thin-walled components

The pump assembly has a mounting platform to accommodate the required fittings, components, fasteners and connectors. The mounting platform consists of multiple thin-walled components which are provided with the flow- and receiving contours for diverse additional fittings, components, fasteners and connectors. The thin-walled components are arranged in the sandwich technique to each other and are so connected with each other that separate flow channels develop in the provided route and the required cross sections. The thin-walled components consist of stainless steel.

Flüssigkeitspumpe

Die Erfindung betrifft eine Flüssigkeitspumpe (1), mit einem um eine Achse (2) drehbar in einem Fördermedium gelagerten Pumpenlaufrad (3) und einer Leiterplatte (4), welche in einem gegenüber dem Fördermedium abgedichteten Trockenraum (5) angeordnet ist, wobei Radialkräfte der Achse (2) einerseits von einer Trennwand (6) zwischen dem Trockenraum (5) und dem Fördermedium und andererseits von einem Pumpenkopf (7) aufgenommen sind. Aufgabe der Erfindung ist es bauliche Maßnahmen vorzusehen, die eine optimale Wärmeabfuhr von einer Leiterplatte und deren Leistungsbauelementen an das Fördermedium zu gewährleisten, ohne den hydraulischen Wirkungsgrad der Pumpe negativ zu beeinflussen. Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.

Pump Assembly With Rapid Assembly

A centrifugal pump assembly 10, with electric motor 19, arranged in a stator housing 11, in which a box 13, containing an electrical board 14, 5 is arranged at one end of the stator housing 11, comprising an intermediate element 16 between the motor 19 and the box 13, being complementary, on one side, to the stator housing 11 and, on the other side, to the box 13. Preferably the intermediate element 16 is a tubular covering and/or connecting element with seats and/or holes that interlock with protrusions in the stator housing and the electrical box.

Pump and heat pump apparatus

Pumping apparatus with printed circuit and switching device

Pumping apparatus, in particular for a shower pump, a printed circuit board (PCB) 40 is contained within the housing for controlling the motor. The PCB incorporates a switching device 43, 44 which is actuatable by a fluid flow and/or pressure operated device 41, 42 in the outlet 26, 27. Preferably the pump comprises a motor 10 which is mounted via at least a first backplate assembly 13, 14 for delivering rotational energy through a shaft 15, and at least a first pump assembly having a first impeller 16, 17 which is rotatable in a first pumping chamber 20, 21 to deliver fluid under pressure to an outlet 26, 27. The switching device may be a reed switch and the fluid flow and or pressure operated device is a float comprising a magnet. In a preferred arrangement the apparatus comprises two pumps and the PCB is arranged to extend between the two outlets.

Mounting for cooling of electronic components in motor pump assembly

A pump assembly (10) including an electric motor (12), a pumping element (14) mounted in a pump chamber (16), the motor (12) being connected to the pumping element (14) such that activation of the motor (12) causes movement of the pumping element (14) which in turn causes pumping of fluid in the pump chamber (16), and a motor controller (44) which includes at least one electrical or electronic component and which controls operation of the motor (12), wherein at least one electrical or electronic component of the motor controller (44) is mounted on or in a wall of the pump chamber (16).

Improvements in pumping apparatus

External rotor construction for brushless dc motor in a pump

A pump driven by an outer rotor 40 and having an annular ferrite magnet 50 which may have grain alignment on its inner periphery comprising a housing 10, a pump rotor 20, a stator 30 and an outer rotor 40 surrounding the stator 30,. The pump is characterized in that: the rotor includes a rotating disk 41 and the annular ferrite magnet 50 fixed on the inner periphery of the disk, the main body of the annular magnet is divided into a magnetic permeable outer layer 51 which is not magnetic and a magnetized inner layer 52 thereby to shorten the magnetic loops, and to increase magnetic force and the effect of magnetic energy accumulation and the magnet may be a multipolar anisotropic permanent magnet,. An isolation chamber 14 contains the stator and Hall sensor 33, the rotor being external or internal to this chamber such that the pump rotor may be either integral with the motor rotor or separate there from, being driven by a shaft passing though housing 14.

Electrical machine

Canned motor pump with power circuit cooling

A canned motor pump with an electric circuit 30 that supplies power to the stator 17a, a heat dissipation plate 31 that dissipates the heat generated by the electric circuit, and a heat transfer plate 32 that transfers the heat of the electric circuit from the heat dissipation plate to part of the lower casing 15 which separates the stator and rotor. Preferably the electric circuit, heat dissipation plate and heat transfer plate are joined by resin, spot welding or by screws. A spacer may be included which controls the separation between the electric circuit and the lower casing. Also claimed is a heat pump comprising, a water circuit including the aforementioned pump, a refrigerant circuit and a heat exchanger between the water and refrigerant circuits.

Circulating pump

A circulating pump for heating plants has a motor which may be adjusted 2,4 in stages by switching windings 1 to at least two preset speeds, the lowest value of which is intended for plant operation in an economy stage, and each higher value is co-ordinated with a different operating stage of the plant. Starting from one of the higher preset speeds, the motor speed may be governed steplessly 7,9,8 towards the next lower speed figure to an operating value which is matched to the prevailing plant conditions. ...

PUMP HOUSING IN SHEET METAL BUILDING METHOD

Circulation pump

PUMPE, INSBESONDERE UMWALZPUMPE FUR EINE HEIZUNGSANLAGE

FLUID PUMP

FILTER PUMPING UNIT, FILTER PUMPING DEVICE WITH SUCH A UNIT AS WELL AS PROCEDURE FOR FILTERING

PUMP, IN PARTICULAR UMWALZPUMPE FUR A HEATING SYSTEM

Method for adjusting the position of a rotating component which is borne by means of a permanent-magnet

Cooling arrangement of a pump intended for pumping a liquid

The invention relates to a pump for pumping liquid, the pump comprising a drive unit (3) and a heat sink (23) connected to said drive unit (3), which heat sink is arranged to carry off heat that is generated in said drive unit during operation of the pump, the drive unit comprising a motor compartment (10) that in the radial direction is delimited by a motor casing (22) and that accommodate an electric motor (17) having a stator (16), a coupling compartment (11) that at least partly is delimited by a pump top casing (14) and that accommodate a power supply component (15), an upper partition (20) that is arranged between said motor compartment (20) and said coupling compartment (11). The pump is characterized in that the motor casing (22) comprises an outer jacket (24) that is connected to and that in the axial direction extends between the upper partition (20) and the heat sink (23), an inner stator housing (25) that extends between the stator (16) and the heat sink (23), and a gas filled ...

REACTOR COOLANT PUMP SET

The invention relates to non-positive displacement pumps and can be used in nuclear power plants. Claimed is a circulating pump assembly comprising a vertical single-stage rotary vane pump with an impeller in a bottom position, in which the pump shaft is coupled to the shaft of an electric motor by a rigid coupling, and a radial/axial bearing is mounted in the upper chamber of the electric motor and is comprised of a radial bearing in the form of a metal rotary bushing mounted on the cylindrical portion of a collar, which is mounted on the motor shaft via a conical seat and is fastened by bolts and a pressure flange to the top end of the motor shaft, and a stator bushing made of an anti-friction material, and of an axial bearing consisting of two stator lever-type balancing systems with linings made of an anti-friction material, and rotor linings made of an anti-friction material, which are mounted on the flat portion of the collar. The radial/axial bearing is cooled with water that is ...

PRIMARY CIRCULATING PUMP ASSEMBLY

Resin injection-molded rotating member

Shock wave motor pump

BODY PRESSURE CHAMBER AND PUMP UNIT USING SUCH A BODY.

IMPROVED CONTROL SYSTEM FOR A PUMP

Electric motor with fully sealed rotating parts, for fluid pump drive, has rotor within sealed compartment, driving external slip-ring shaft via magnetic coupling

Un moteur électrique comprend un rotor (12) solidaire d'un arbre de rotor (14), un stator (30) entourant le rotor et un collecteur (32) relié électriquement au stator. Le collecteur (32) est réalisé sous la forme d'un élément rotatif s'étendant selon un même axe (XX) que l'arbre de rotor (14) et couplé en rotation avec lui par l'intermédiaire d'un entraînement magnétique (34) comprenant un aimant menant (36) solidaire de l'arbre de rotor et un aimant mené (38) solidaire du collecteur, une cloison étanche (22) étant prévue entre l'aimant menant et l'aimant mené. Le moteur électrique peut être utilisé notamment pour l'entraînement d'une pompe à fluide.

FLUID CIRCULATION PUMP COMPRISING TWO SUB-ASSEMBLIES, ONE OF WHICH IS REMOVABLE WITH RESPECT TO THE OTHER

APPARATUS FOR WITHDRAWING HEAT FROM COMPONENTS

configuração de bomba

PLATINUM-COBALT-BORON BLOOD PUMP ELEMENT

A magnetic impeller for a blood pump such as a magnetically driven, rotary ventricular assist device for pumping blood of a patient, the impeller comprising a magnetic alloy including platinum, cobalt, and boron.

METHOD FOR CONTROLLING AN ASSIST PUMP FOR FLUID DELIVERY SYSTEMS WITH PULSATILE PRESSURE

The invention relates to a method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If, for example, a heart-assist pump is operated with a constant rotational speed, the blood is continually delivered through the assist pump even when the cardiac chamber is in the decontraction phase. The inventive method ensures that an assist pump functions in an assisting manner only during the pressure phase of the main pump by constantly determining the pressure difference between the inlet and delivery side of the assist pump and by constantly determining the rate of flow through the assist pump. The rotational speed of the assist pump is controlled as to prevent the determined pressure difference from falling below a predeterminable value and to prevent the rate of flow from falling below zero.

Grounding device for brushless electric motor

A motor includes a rotor assembly includes a rotor and a motor shaft secured to the rotor. The motor further includes stator coils. Circuitry of the motor includes electronic components that cooperatively operate to activate and deactivate the coils to cause the rotor assembly to rotate, and first and second power terminals. An electrically conductive outer housing surrounds the motor. An electrically conductive grounding tab is electrically connected to the first power terminal. The tab contacts a radially-inwardly facing surface of the outer housing to provide a electrostatic discharge path from the outer housing to the ground terminal.

Filter and pump unit, filter and pump apparatus having such a unit and also method for filtering out

A filter and pump unit is proposed for the filtering out of particles from a fluid, there being a filter housing (2) which bounds a filter space (3) and has an inlet (21) and also an outlet (22) for the fluid to be filtered as well as a filter element (4) provided in the filter space (3), the filter element demarcating an inlet region (31) from an outlet region (32) of the filter space (3), with the inlet region (31) communicating with the inlet (21) and the outlet region (32) communicating with the outlet (22), there also being an impeller (5) which, as part of a rotary pump, can pump the fluid from the inlet region (31) through the filter element (4) into the outlet region (32), characterized in that a flow connection (6) is provided between the outlet region (32) and the impeller (5) so that at least a part of the fluid can flow back from the outlet region (32) to the impeller (5). Furthermore, a method for the filtering out of the particles from a fluid is proposed.

PUMP AND METHOD

A pump for pumping a liquid comprises a rotor, a stator having at least one electrical winding and at least one cooling path, and a working conduit extending from a pump inlet to a pump outlet, the working conduit being in liquid communication with the cooling path at least at a cooling path inlet to permit a portion of the pumped liquid to circulate through the cooling path when the pump is in use.

MOTOR DRIVING CONTROL SUBSTRATE AND MOTOR-DRIVEN OIL PUMP

A control substrate capable of effectively reducing noise input to a plurality of MOSFETs is provided. The control substrate includes at least three parallel snubber circuits (, and ). Each of the parallel snubber circuits (, and ) is connected in parallel with each of U-phase MOSFETs (and ), V-phase MOSFETs (and ), and W-phase MOSFETs (and ). 1. A motor driving control substrate comprising:a first-phase switching element pair comprising a pair of switching elements connected in series and configured to individually turn on/off outputs of a first phase in a three-phase power supply;a second-phase switching element pair comprising a pair of switching elements connected in series and configured to individually turn on/off outputs of a second phase in the three-phase power supply;a third-phase switching element pair comprising a pair of switching elements connected in series and configured to individually turn on/off outputs of a third phase in the three-phase power supply; andsnubber circuits connected in parallel with each of the first-phase switching element pair, the second-phase switching element pair, and the third-phase switching element pair,wherein at least three snubber circuits are provided, and each of the snubber circuits is connected in parallel with each of the first-phase switching element pair, the second-phase switching element pair, and the third-phase switching element pair.2. The motor driving control substrate according to claim 1 , wherein each of the at least three snubber circuits comprises a plurality of snubber capacitors that are connected in parallel and have different electrostatic capacitances.3. A motor driving control substrate comprising:a first-phase switching element pair comprising a pair of switching elements connected in series and configured to individually turn on/off outputs of a first phase in a three-phase power supply;a second-phase switching element pair comprising a pair of switching elements connected in series and ...

Pump and liquid supply system

A pump includes a pump unit, a pump case, a motor unit, a plurality of guide blades forming plural guide paths in tangent directions of the impellers; and a multiplicity of return blades to form paths for collecting the liquid under pressure from the guide paths into a suction opening of a next-stage impeller. The return blades have a configuration in which a total cross sectional area of inlet openings of concave paths formed by a plurality of ribs is set to be equal to or larger than a cross sectional area of the suction port, while a total volume of the concave paths is set to be smaller than the total volume of non-path portions excluding the paths.

Pump, especially circulating pump

A pump, especially circulating pump, particularly for heating systems, which has a pump wheel rotatably but axially non-displaceably arranged within a housing which has two suction chambers arranged in axial direction of said pump wheel on opposite sides thereof while at least one pressure chamber likewise arranged in the housing extends around the pump wheel and its axis of rotation. The pump wheel has two suction openings located in the vicinity of its axis of rotation at opposite sides thereof while communicating with the respective adjacent suction chamber. The pump wheel also comprises vanes extending radially with regard to its axis of rotation and also comprises a central fluid receiving chamber establishing fluid communication between the two suction openings and adapted to convey fluid to the vanes, while a control member is displaceable in a continuous manner in the fluid receiving chamber in the axial direction of the pump wheel for controlling the inflow of fluid from the suction ...

Насос циркуляционный герметичный с гильзованным электродвигателем

Полезная модель относится к гидравлическим машинам с герметичным гильзованным электродвигателем переменного тока и может быть использована для термостабилизации электрооборудования в железнодорожной технике.Техническая задача - создание изделия для перекачивания в стационарных условиях охлаждающей жидкости в системе железнодорожного оборудования с высокой циркуляцией охлаждающей жидкости, стабильным температурным режимом работы, повышенным ресурсом и возможностью использования насоса как в горизонтальном, так и вертикальном положениях.Насос циркуляционный герметичный с гильзованным электродвигателем содержит гильзованные статор 1 и ротор 2, общий корпус 3, герметично соединенный с улиткой 4 без уплотнения вала, передний фланец 5 со сквозными отверстиями 15 для циркуляции охлаждающей жидкости, подвижные роторные подшипники скольжения 6 со спиральными канавками и передние торцевые подшипники 7 с радиальными канавками, неподвижные наружные подшипники 8, вал 9 с осевым каналом 13 и поперечными каналами 14, центробежное рабочее колесо закрытого типа 10, всасывающую полость 11 и перекачиваемую полостью. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 189 399 U1 (51) МПК F04D 13/06 (2006.01) F04D 29/06 (2006.01) F04D 29/58 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F04D 13/0606 (2019.02); F04D 29/061 (2019.02); F04D 29/5806 (2019.02) (21)(22) Заявка: 2019102117, 25.01.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 25.01.2019 (56) Список документов, цитированных в отчете о поиске: КРАЕВ М.В. и др. (45) Опубликовано: 21.05.2019 Бюл. № 15 1 8 9 3 9 9 R U Малорасходные насосы авиационных и космических систем. Москва, Машиностроение, 1985, с.16-17, рис.1.9. SU 1541412 A1, 07.02.1990. RU 2451214 C1, 20.05.2012. SU 1763724 A1, 23.09.1992. DE 102014113412 B3, 24.09.2015. CN 106050725 A, 26.10.2016. (54) НАСОС ЦИРКУЛЯЦИОННЫЙ ГЕРМЕТИЧНЫЙ С ГИЛЬЗОВАННЫМ ...

Fuel cell system, motor, air compressor, pump, and method of designing motor

A fuel cell system includes a fuel gas supply/discharge mechanism, an oxidative gas supply/discharge mechanism, and a coolant circulation mechanism that cools a fuel cell. A motor employed in an air compressor of the fuel gas supply/discharge mechanism includes a generally circular cylindrical rotor. The axial length of the rotor is related to its diameter such that the ratio is approximately equal to a maximum value satisfying a relationship: Ta≦Tm, where Ta denotes a permissible torque of the motor, and that Tm denotes a maximum torque for which a request is to be made to the motor.

Rotodynamic Pump With Permanent Magnet Coupling Inside The Impeller

Rotodynamic pumps having an inner drive permanent magnet coupling disposed inside an impeller are disclosed. The impeller has a casing having a pumping region generally in a pumping plane that is perpendicular to the rotational axis of the impeller and aligned with a permanent magnet coupling that includes outer magnets that are connected to the impeller and at least partially aligned with the pumping region of the impeller, and inner magnets that are connected to an inner magnet ring and are axially aligned with the outer magnets. A canister is sealed to the casing and separates the outer magnets from the inner magnets.

Heat Dissipating Fan

A heat dissipating fan includes a housing having a base and a sidewall coupled to the base. The sidewall defines a compartment. The housing includes an air inlet, an air outlet and a dust channel. The air outlet includes opposite first and second end edges located at a same straight side of the housing. The housing defines a first plane. The impeller includes a hub and several blades. The impeller defines a second plane. The compartment of the housing includes an air outlet section and a pressure accumulating section. The air outlet section is located between the first and second planes. The air outlet is located in the air outlet section. The dust channel extends in an angle with respect to the second plane. An impeller is coupled to the stator that is coupled to the base. A control element includes a driving circuit and a rotating direction control circuit. 1. A heat dissipating fan comprising:a housing including a base and a sidewall coupled to the base, with the sidewall defining a compartment of a generally cylindrical shape having an axis, with the housing further including an air inlet formed by open ends of the compartment, an air outlet extending in a radial direction from the compartment through the sidewall, and a dust channel extending in a radial direction from the compartment through the sidewall, with the air inlet, the air outlet and the dust channel being in communication with the compartment, with the air outlet including opposite first and second end edges in the sidewall parallel to and spaced from the axis, with the first and second end edges of the air outlet located at a same straight side of the housing, with the housing defining a first plane including the first and second end edges, with the impeller including a hub extending along the axis and a plurality of blades coupled to an outer periphery of the hub, with the impeller defining a second plane including the axis of the hub, with the second plane parallel to and spaced from the first ...

Axial flow blood pump with hollow rotor

An axial flow blood pump includes a housing and a hollow rotor in the housing. The housing has an entrance end, an exit end, and a pump axis. The rotor has at least one spiral conveying rotor blade arranged on an inner surface of the rotor. The spiral conveying rotor blade extends toward a center of the rotor while leaving the center of the rotor open to define a central axial passage for a blood flow. The spiral conveying rotor blade has a pitch and a height that vary along the pump axis.

FLUID FEEDER AND TIRE CURING DEVICE

A fluid feeder which is capable of removing foreign matter on the surface of a rotor is provided. The fluid feeder is provided with a rotor housing body on which a rotor housing chamber for housing a rotor of a canned electric motor is installed and a pump casing in which a fluid feeding chamber hermetically installed so as to be connected consecutively to the rotor housing chamber is installed and an impeller is housed inside the fluid feeding chamber. Further, a hollow pipe body is used to connect the vicinity of a side face of the fluid feeding chamber with an upper end of the rotor housing chamber. 1. A method for removing rotor attached substances in a fluid feeder comprising:a motor which has a rotor and a stator coil disposed around the rotor;a rotor housing body which houses the rotor and has a first region hermetically separating the rotor from the stator coil;a driving shaft, one end of which is connected to the rotor;an impeller which is connected to the other end of the driving shaft;an impeller housing body which has a second region hermetically installed so as to be connected consecutively to the first region and in which the impeller is housed at the second region;a suction port which is installed on the impeller housing body to suck a fluid into the second region upon rotation of the impeller;an exhaust port which is installed on the impeller housing body to exhaust the fluid from the second region upon rotation of the impeller;a pipe body, one end of which is connected to the first region opposite to the impeller when viewed from the rotor, the other end of which is connected to a region of the second region higher in pressure than a region installed so as to be connected consecutively to the first region upon rotation of the impeller and which is formed internally hollow andthe method for removing rotor attached substances in the fluid feeder whereinthere is provided a fluid supplying step for supplying the fluid to the first region via the pipe ...

Pump unit

A pumping set includes an electric motor, which exhibits a stator, a rotor and a can arranged between the stator and rotor, and at least one impeller linked with the rotor, wherein the electric motor has engine electronics designed for electronically commutating the electric motor, and the electric motor and commutation are configured in such a way that, in a state where the rotor chamber inside the can and/or the impeller is not filled with liquid, the rotor is shut down.

Impeller and Electric-Motor Driven Water Pump Having the Same

An impeller is comprised of a hub configured to be rotated on a central axis, a shroud formed to be opposed to the hub in a direction of the central axis and having a central opening serving as a fluid inlet, and a plurality of circumferentially-equidistant spaced blades interleaved between the hub and the shroud. When a mating face of the shroud with each of the blades is divided into a radially inward region and a radially outward region, and a mating face of each of the blades with the shroud is divided into a radially inward region and a radially outward region, a given weld range is set only in the radially inward region of the mating face of the shroud with each of the blades and the radially inward region of the mating face of each of the blades with the shroud.

CENTRIFUGAL PUMP ASSEMBLY

A centrifugal pump assembly includes an electrical drive motor (), with at least one impeller () which is driven by the motor and a pump casing () which surrounds the impeller () and which includes at least one suction connection () and at least two delivery connections (). A rotatable valve element (″) is arranged in the pump casing (). The valve element is movable between at least two switching positions, in which the flow paths through the delivery connections () are opened to a different extent. The valve element (″) includes an annular wall () which surrounds the impeller () and in which at least one switching opening () is formed. The valve element (″) is rotatably mounted about a rotation axis (X), which is centric to the annular wall (), inside of the pump casing (). 1. A centrifugal pump assembly comprising:an electrical drive motorat least one impeller which is driven by the electrical drive motor;a pump casing which surrounds the impeller and which comprises at least one suction connection and at least two delivery connections;a rotatable valve element is 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 delivery connections are opened to a different extent, wherein the valve element comprises an annular wall which surrounds the impeller and in which at least one switching opening is formed and the valve element is rotatably mounted about a rotation axis which is centric to the annular wall, in the inside of the pump casing.2. A centrifugal pump assembly according to claim 1 , wherein at least one two outlet openings are connected to the delivery connections and with which the at least one switching opening can be brought to at least partly overlap depending on the switching position of the valve element and the two outlet openings are situated in a wall of the pump casing which faces the annular wall.3. A centrifugal pump according to claim 1 , wherein ...

ELECTRIC MOTOR DRIVEN LIQUID PUMP, IN PARTICULAR FOR THE FORCED LUBRICATION OF A MANUAL TRANSMISSION FOR MOTOR VEHICLES

An electric motor driven liquid pump, which can be used for forced lubrication of a motor vehicle manual transmission, has a housing flange-mountable on a fluid container via a flange surface. A stator including a motor winding and a magnetic rotor are incorporated in the housing for conveying liquid. The housing is formed of multiple parts including a pump housing section which has fluid inlets and outlets, a stator housing section which holds the stator and together with the pump housing section, delimits an electronics chamber in which the rotor is arranged, and a motor housing section which together with the stator housing section delimits an electronic chamber in which at least the stator is located. A sealing element seals the flange surface to the fluid container, separates the fluid chamber and the electronic chamber, and seals the latter from the environment. 1. An electric motor driven liquid pump , for forced lubrication of a manual transmission for motor vehicles , comprising a housing , which can be flange-mounted on a liquid container by way of a flange surface external to the pump and has a liquid inlet and a liquid outlet and in which a stator having a motor winding and a magnetic rotor for conveying liquid are received , the housing having a multi-part construction with a pump housing section which has the liquid inlet and the liquid outlet , a stator housing section which carries the stator and together with the pump housing section bounds a liquid chamber in which the rotor is arranged , and a motor housing section which together with the stator housing section bounds an electronics chamber in which at least the stator is disposed , and wherein a sealing element is provided , which simultaneously seals at the flange surface external to the pump with respect to the liquid container , separates the liquid chamber from the electronics chamber and seals the electronics chamber relative to the environment.2. An electric motor driven liquid pump ...

Electrically driven pump and method for manufacturing the same

An electrically driven pump includes a rotor assembly, and the rotor assembly includes a first part and a second part. The first part is integrally formed by injection molding, and includes an upper plate and vanes of an impeller, the upper plate is integrally formed with the vanes by injection molding, and each of the vanes is formed with a first connecting portion. The second part is integrally formed by injection molding, the first part and the second part are fixed by welding the first connecting portion and a second connecting portion, and in this way, the manufacturing cost of the rotor assembly is reduced, also a shaft sleeve integrally formed has a simple forming process.

Centrifugal pump unit and method for moving a valve element in a pump unit

A centrifugal pump assembly includes an electric drive motor (6, 8), a driven impeller (14) and a pump casing (2) which surrounds the impeller (14). A movable element (24; 24′) is arranged a valve element. A section of the valve element is movable from a released position into a bearing position, fixed on a contact surface (60), by pressure which is produced by the impeller in the pump casing. A control device (64) moves the valve element from one switching position into another switching position and reduces the speed of the drive motor. Upon pressure in the pump casing dropping such that the valve element is no longer fixed on the contact surface and the valve element has been moved into the other switching position, the control device increases the speed of the drive motor again. A method for moving a valve element is provided.

PUMP UNIT

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 ...

Electric water pump and manufacturing method for thereof

The present disclosure relates to an electric water pump and a method of manufacturing the same, and more particularly, to an electric water pump of which productivity, maintainability, and use convenience may be improved by simplifying a production process through a change in a structure, and a method of manufacturing the same. The electric water pump includes: a pump housing accepting a motor therein; an acceptor having a cylindrical shape of which one side is opened and formed at one side of the pump housing; a control substrate installed in the acceptor; an external terminal formed of a conductor and penetrating through the acceptor to electrically connect the control substrate to an external power supply; and an internal terminal formed of a conductor and penetrating through the pump housing and the acceptor to electrically connect the motor and the control substrate to each other.

CANNED-MOTOR PUMP FOR VEHICLE

A canned motor pump that includes a pipe-shaped can part which accommodates a rotor, a plurality of supports protruding radially outward from sides of the can part, and a plurality of the split cores each of which is inserted inside a corresponding support of the supports. Each distal end of the split cores extends in a direction toward a corresponding insulator part. A plurality of insulator parts are respectively formed on distal ends of the supports. An annular outer ring surrounds the outer circumference of the insulator parts. The inner circumference of the outer ring adjoins to exposed outermost ends of the split cores. Coils then are wound on the supports to provide a can motor pump with fewer parts and better performance. 1. A canned motor pump comprising:a pipe-shaped can part which accommodates a rotor;a plurality of supports protruding radially outward from sides of the can part;a plurality of the split cores, wherein each of the plurality of the split cores is inserted inside a corresponding support of the plurality of supports;a plurality of insulator parts, wherein each of the plurality of insulator parts is formed on a corresponding distal end of the plurality of supports and each distal end of the plurality of the split cores extending in a direction toward a corresponding insulator part of the plurality of insulator parts;an annular outer ring surrounding an outer circumference of the plurality of insulator parts, an inner circumference of the outer ring adjoining to exposed outermost ends of the plurality of split cores; anda plurality of coils wound on the plurality of supports.2. The canned motor pump according to claim 1 , wherein the can part claim 1 , the plurality of supports claim 1 , the plurality of insulator parts and the plurality of split cores are integrally insert-molded so that the plurality of split cores are respectively inserted inside the plurality of supports.3. The canned motor pump according to claim 1 , wherein each of the ...

CANNED MOTOR PUMP FOR VEHICLE

A canned motor pump includes a stator assembly and a housing surrounding the outer portion of the state assembly. The housing is coupled with the stator assembly in a state in which the housing is divided into a plurality of pieces by cutting lines, and has a through-hole in a side portion into which a fastener is fastened. A fixing ring is coupled to the inside of the housing and the stator assembly so as to provide a seal between the housing and the stator assembly. 1. A canned motor pump comprising:a stator assembly;a housing surrounding an outer portion of the state assembly, the housing being coupled with the stator assembly in a state in which the housing is divided into a plurality of pieces by cutting lines, and having a through-hole on a side portion into which a fastener is fastened; anda fixing ring coupled to an inside of the housing and the stator assembly so as to provide a seal between the housing and the stator assembly.2. The canned motor pump according to claim 1 , wherein the stator assembly comprises a stator and a pipe-shaped outer ring surrounding an outer circumference of the stator.3. The canned motor pump according to claim 1 , wherein the housing comprises two pieces having an identical shape claim 1 , and the cutting lines are disposed at corresponding positions when the two pieces of the housing are coupled with each other.4. The canned motor pump according to claim 1 , wherein the though-hole comprises a plurality of through-holes which are disposed in an outer portion of the housing at predetermined distances.5. The canned motor pump according to claim 1 , wherein the through-hole is disposed at an upper portion of the housing that is at least a half of a height of the housing.6. The canned motor pump according to claim 1 , wherein the fastener comprises a headless bolt.7. The canned motor pump according to claim 2 , wherein the housing has a stepped projection which protrudes inward from a position that adjoins to a lower surface of ...

Water pump module

A pump body includes a housing, a first and a second chambers separated and communicated by the housing, an input pipe communicated with the first chamber and an output pipe communicated with the second chamber. The input pipe has a water outlet located in the first chamber. The output pipe has a water inlet located in the second chamber. The first pump has a first rotor placed in the first chamber. The second pump has a second rotor placed in the second chamber, wherein an extension line of a rotating shaft of the second rotor is perpendicular to a plane where a rotating shaft of the first rotor located.

Axial flow pump with integrated motor

An appliance containing a motorized appliance pump is provided. The appliance pump includes an integrated motor. The pump is an axial flow pump operable to move fluid along a fluid passageway.

FAN ASSEMBLY

A fan assembly includes a body and a nozzle connected to the body. The body includes an impeller, a motor housing, and a motor located within the motor housing for driving the impeller. The impeller has a substantially conical hub connected to the motor, a plurality of curved vanes connected to the outer surface of the hub, and an annular vane connected to the base of the hub. The motor housing has an annular groove for receiving at least the tip of the annular vane, and an annular lip forming a drip edge extending about the motor housing, the annular lip defining an outer peripheral wall of the groove. 1. A fan assembly comprising a body and a nozzle connected to the body , the body comprising:an impeller;a motor housing; anda motor located within the motor housing for driving the impeller;wherein the impeller comprises a substantially conical hub connected to the motor, a plurality of curved vanes connected to the outer surface of the hub, and an annular vane connected to the base of the hub,and wherein the motor housing comprises an annular groove for receiving at least the tip of the annular vane, and an annular lip forming a drip edge extending about the motor housing, the annular lip defining an outer peripheral wall of the groove.2. The fan assembly of claim 1 , wherein the annular vane is substantially cylindrical in shape.3. The fan assembly of claim 1 , wherein the annular groove is formed in substantially frustoconical wall of the motor housing which is located adjacent to the hub of the impeller.4. The fan assembly of claim 1 , wherein the annular lip does not protrude downwardly from the motor housing beyond the hub of the impeller. This application claims the priority of United Kingdom Application No. 1413426.6, filed Jul. 29, 2014, the entire contents of which are incorporated herein by reference.The present invention relates to a fan assembly. In a preferred embodiment, the present invention provides a humidifying apparatus for generating a flow of ...

ELECTRIC PUMP

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 , ...

SUBMERSIBLE CANNED MOTOR PUMP

Systems and methods for producing fluids from a subterranean well include an electrical submersible pump assembly with a motor-pump unit. The motor-pump unit has a motor housing and a stator is located within the motor housing. The stator has a stator body with an interior cavity. A rotor assembly is located within the interior cavity of the stator. The rotor assembly includes a rotor shaft extending along the central axis of the stator, a rotor member, and an intermediate rotor bearing assembly. The rotor member and the intermediate rotor bearing assembly circumscribe the rotor shaft. An impeller is mounted on the rotor shaft and located within the interior cavity of the stator. A liner with a polygonal cross section is located along an interior surface of the interior cavity. The liner is secured to the motor housing and seals the stator body from a wellbore fluid.

Axial Gap Rotary Electric Machine

To significantly improve a heat dissipation property of an axial gap rotary electric machine within a size necessary for configuring a motor. In an axial gap rotary electric machine comprising a stator and a rotor in an axial direction, the stator has a plurality of stator cores arranged in a circumferential direction and coils wound around the stator cores, and a heat pipe obtained by filling an inside of a metal hollow pipe with a refrigerant is arranged in a gap between adjacent coils formed in an outer diameter portion of the stator in a radial direction and a housing with a necessary insulation distance between the coils and the heat pipe. The heat pipe extends in a direction of a rotation axis and an opposite output side, and is in contact with a heat dissipating fin outside an end bracket on the opposite output side.

FLUID TRANSPORTATION DEVICE

The present disclosure provides a fluid transportation device. The fluid transportation device includes a casing and a fluid driving member. The casing has a first shell and a second shell divided along an axial direction. The first shell and the second shell are assembled to be opposite to each other. The casing has an accommodating space, a first transporting portion, and a second transporting portion. The first transporting portion and the second transporting portion are in communication with the accommodating space. The fluid driving member has a first fan wheel, a second fan wheel, and a motor. The first fan wheel, the second fan wheel, and the motor are disposed in the accommodating space. The motor is configured to drive the first fan wheel and the second fan wheel to rotate. 1. A fluid transportation device comprising:a casing, having a first shell and a second shell divided along an axial direction, the first shell and the second shell assembled to be opposite to each other, and having an accommodating space, a first transporting portion and a second transporting portion, the first transporting portion and the second transporting portion being in communication with the accommodating space; anda fluid driving member, having a first fan wheel, a second fan wheel, and a motor, the first fan wheel, the second fan wheel, and the motor disposed in the accommodating space, and the motor configured to drive the first fan wheel and the second fan wheel to rotate.2. The fluid transportation device according to claim 1 , wherein materials of the first shell and the second shell are the same.3. The fluid transportation device according to claim 1 , wherein materials of the first shell and the second shell are different.4. The fluid transportation device according to claim 3 , wherein the material of the first shell is a transparent material claim 3 , and the second shell is made of a thermally conductive material.5. The fluid transportation device according to claim 4 ...

Centrifugal pump for conveying a fluid

A centrifugal pump for conveying a fluid includes a housing having an inlet and an outlet for the fluid. An impeller is arranged in the housing for rotation in an axial direction to convey the fluid from the inlet to the outlet, a shaft extends in the axial direction for driving the impeller, and a stationary guide device for guiding the fluid from the impeller to the outlet is connected to the housing. A resilient compensating element is disposed between the housing and the guide device, is arranged around the shaft, and holds the guide device in a centered position to the impeller during a radial relative movement to the housing.

Pumping apparatus

In the pumping apparatus of the invention, a circuit board is secured to a portion of a partition wall member on a side of a first direction, and disposed closer to the side of the first direction than a stator core and an insulation member. A portion of a terminal pin on the side of the first direction is secured to the circuit board, and a portion of the terminal pin on a side of a second direction is secured to the insulation member. A first contact surface facing the side of the first direction is formed on the insulation member. A second contact surface is formed on the partition wall member. The second contact surface faces the side of the second direction. Also, the first contact surface is in contact with the second contact surface to restrict a movement of the stator in the first direction.

LIQUID HEATING PUMP FOR CONVEYING AND HEATING LIQUID IN A WATER-BEARING DOMESTIC APPLIANCE

A liquid heating pump includes an impeller chamber having an impeller, which can be rotatably driven, and a diffusor chamber and/or pressure chamber arranged axially downstream in the flow direction and having a stationary diffusor. A heating device is associated with the diffusor and/or pressure chamber. The diffusor has a main body, in particular in the shape of a circular cylinder. The main body has a front wall on which a guide blade portion is arranged which axially protrudes in a direction of the impeller into a liquid ejection region of the impeller arranged around an outer periphery of the impeller and which extends away from the liquid ejection region outwardly toward an axial outer casing of the main body, which axial outer casing is arranged radially further outwardly than the liquid ejection region of the impeller. 128-. (canceled)29. A liquid heating pump for conveying and heating liquid in a household appliance which uses water , in particular a household dishwasher heating pump or washing machine heating pump , said liquid heating pump comprising:a housing having a centrally arranged suction channel for suctioning the liquid in an axial suction direction, an impeller chamber arranged axially downstream of the suction channel and receiving suctioned liquid, and a diffusor and/or pressure chamber which is arranged axially downstream of the impeller chamber, viewed counter to the suction direction, and which is arranged externally, in particular coaxially, at least around a partial portion of the suction channel;an impeller rotatably mounted in the impeller chamber for conveying the liquid into the diffusor and/or pressure chamber;a stationary diffusor in the diffusor and/or pressure chamber, said diffusor comprising a main body having a front wall in facing relation to the impeller chamber to form a front defining wall of the impeller chamber, said main body of the diffusor including on the front wall at least one guide blade portion which axially ...

Micro Water Pump

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 ...

ELECTRONIC PUMP

An electronic pump is provided, which includes a rotor assembly. The rotor assembly includes an impeller and a rotor which are separately injection-molded respectively. The material for injection-molding the rotor includes a magnetic material, and the material for injection-molding the impeller does not include a magnetic material. The impeller includes a first fitting portion, the rotor includes a second fitting portion, the impeller and the rotor are cooperated by the first fitting portion and the second fitting portion, and the impeller and the rotor are fixed with respect to each other by a fixing device. In this way, the impeller and the rotor may be made respectively by different materials, and an ordinary plastic material may be employed for the impeller, which may reduce the cost of manufacturing material of the rotor assembly. 1. An electronic pump , comprising a first housing , a second housing , a rotor assembly , a stator assembly , a shaft and a printed circuit board , a pump chamber comprising a space between the first housing and the second housing , wherein the electronic pump further comprises an partition , and the partition separates the pump chamber into a wet chamber and a dry chamber , the rotor assembly is arranged in the wet chamber , and the stator assembly and the printed circuit board are arranged in the dry chamber , wherein the rotor assembly comprises an impeller , a rotor and a fixing device , the impeller and the rotor are separately formed , the material of the impeller comprises no magnetic material , and the material of the rotor comprises a magnetic material , and the impeller and the rotor are fixed with respect to each other by the fixing device , the impeller comprises blades , a first connecting portion and a second connecting portion , and the blade , the first connecting portion and the second connecting portion are integrated , and the rotor comprises an end and a rotor side wall , the end is arranged at an end of the rotor ...

FLUID PUMP

A fluid pump includes an inlet for introducing fluid into the fluid pump and an outlet for discharging the fluid from the fluid pump A motor is included having an armature which rotates about an axis. The motor also has a stator which circumferentially surrounds the armature such that a fluid passage is defined radially between the armature and stator through which the fluid flows from the inlet to the outlet. A pumping arrangement is rotated by the armature and pumps the fluid from the inlet to the outlet. A flow impedance member extends axially in the fluid passage which impedes circumferential flow of the fluid within the fluid passage, thereby generating a pressure gradient circumferentially within the fluid passage which applies a lateral force to the armature. 1. A fluid pump comprising:an inlet for introducing fluid into said fluid pump;an outlet for discharging said fluid from said fluid pump;a motor having an armature which rotates about an axis such that said armature is supported at one end by a first bearing and at a second end by a second bearing, said motor also having a stator which circumferentially surrounds said armature such that a fluid passage is defined radially between said armature and said stator through which said fluid flows from said inlet to said outlet;a pumping arrangement which is rotated by said armature and which pumps said fluid from said inlet to said outlet;a flow impedance member extending axially in said fluid passage which impedes circumferential flow of said fluid within said fluid passage, thereby generating a pressure gradient circumferentially within said fluid passage which applies a lateral force to said armature, wherein a distance from said armature to said flow impedance member in a direction radially relative to said axis is less than a dimension of said fluid passage in a direction radially relative to said axis at a location that is diametrically opposed to said distance from said armature to said flow impedance ...

MAGNETIC DRIVE PUMP

The invention relates to a magnetic drive pump (), comprising: 110. A magnetic drive pump () , comprising:{'b': '12', 'a housing () filled at least partially with a conveyed fluid;'}{'b': 14', '12, 'an impeller chamber () enclosed by the housing ();'}{'b': '22', 'a pump shaft ();'}{'b': 24', '14', '22, 'an impeller () which is arranged in the impeller chamber () and on the pump shaft ();'}{'b': 26', '22', '12, 'a bearing () which supports the pump shaft () in the housing ();'}{'b': 18', '20, 'a can () which encloses a coupling chamber ();'}{'b': 50', '20', '22, 'a rotor () which is arranged in the coupling chamber () and on the pump shaft ();'}{'b': 16', '26', '14', '20, 'a ring () held in the housing, which supports the bearing () and separates the impeller chamber () from the coupling chamber ();'}{'b': 28', '16', '14', '26', '26', '26', '20', '20', '14, 'a duct () formed in the ring () for conveying a partial flow of the conveyed fluid out of the impeller chamber () to the bearing () for the purpose of lubricating the bearing (), wherein at least part of the conveyed fluid emerging from the bearing () arrives in the coupling chamber (), characterized in that the coupling chamber () is closed in fluid-tight manner relative to the impeller chamber ().'}21018. The magnetic drive pump () according to claim 1 , characterized in that the can () is produced from a non-metallic material.3103428. The magnetic drive pump () according to claim 1 , characterized by at least one restriction element () which restricts the throughflow of the conveyed fluid through the duct ().410342814. The magnetic drive pump () according to claim 3 , characterized in that the restriction element () partially covers or closes the opening of the duct () to the impeller chamber ().510341628. The magnetic drive pump () according to claim 4 , characterized in that the restriction element () is formed in a disc shape and is fastened to the ring () claim 4 , so that it at least partially covers the ...

PUMP ASSEMBLY

A pump assembly includes an electric drive motor (), an impeller, driven by the drive motor (), and a valve device () situated in a flow path through the pump assembly, which is movable between a first and a second switching position. The valve device () is coupled to the drive motor via a first coupling such that a movement of the drive motor () is transmitted onto the valve device () and the valve device is movable from the first into the second switching position by rotation movement of the drive motor. The first coupling is releasable by way of increasing the speed of the drive motor () and/or increasing the pressure at the outlet side of the impeller and/or by way of slip, such that the coupling between the drive motor () and the valve device () is reduced or lifted. 1. A pump assembly comprising:an electric drive motor;at least one impeller which is driven by the drive motor; andat least one valve device which is situated in a flow path through the pump assembly and which is movable at least between a first switching position and a second switching position, wherein the valve device is coupled to the drive motor via a first coupling such that a movement of the drive motor is transmitted onto the valve device and the valve device is movable from the first into the second switching position by way of a rotation movement of the drive motor and the first coupling is releasable by way of increasing the speed of the drive motor and/or increasing pressure at the outlet side of the impeller and/or by way of slip, such that the coupling between the drive motor and the valve device is reduced or lifted.2. A pump assembly according to claim 1 , wherein a second releasable coupling is provided between at least one movable part of the valve device and a pump casing which surrounds the impeller claim 1 , said second releasable coupling being movable from a released claim 1 , first coupling position into a holding claim 1 , second coupling position by way of the pressure at ...

PUMP DRIVE UNIT FOR CONVEYING A PROCESS FLUID

A pump drive unit for conveying a process fluid includes a housing which surrounds a pump having an impeller, a drive for the pump, a shaft for driving the impeller which connects the drive to the pump, and a restrictor extending around the shaft and arranged between the impeller and the drive. The housing has a pump inlet and outlet for the process fluid, with an inlet for introduction of a barrier fluid into the drive and an outlet for draining the barrier fluid from the housing. A plurality of storage chambers for the barrier fluid are disposed at the shaft in the region between the restrictor and the drive. The storage chambers are arranged behind one another with respect to the axial direction, with a respective two adjacent storage chambers being in flow communication with one another. 1. A pump drive unit for conveying a process fluid , comprising:a pump having an impeller rotatable about an axial direction;a drive for the pump, the drive having a shaft configured to drive the impeller, and which connects the drive to the pump;a restrictor extending around the shaft and being arranged between the impeller and the drive;a housing having a pump inlet and a pump outlet for the process fluid, an inlet for introduction of a barrier fluid into the drive and an outlet for drainage of the barrier fluid from the housing; anda plurality of storage chambers for the barrier fluid provided at the shaft in a region between the restrictor and the drive, the storage chambers being arranged behind one another with respect to the axial direction, with two adjacent storage chambers of the plurality of storage chambers being in flow communication with one another.2. A pump drive unit in accordance with claim 1 , wherein each storage chamber of the plurality of storage chambers is configured as a ring space about the axial direction.3. A pump drive unit in accordance with claim 1 , wherein the two adjacent storage chambers are in flow communication through a restrictor gap claim ...

Modular, multi-stage, integral sealed motor pump with integrally-cooled motors and independently controlled rotor speeds

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

Axial-flow pumps and related methods

Miniature (mesoscale) axial-flow pumps including an inlet guide, a stator spaced apart from the inlet guide, and a rotor rotatably disposed between the inlet guide and the stator.

Water-pump motor using a waterproof stator, and water pump

Provided are a water pump motor that employs a stator core of an outer winding method that can use a low-cost ferrite magnet by minimizing an air gap between a magnet of a rotor and a stator core, and that heightens a fill factor, to thereby maximize efficiency of the motor, and a water pump using the water pump motor. The water pump motor includes a stator and an inner type rotor, in which the stator includes: a stator core whose inner circumferential portion is annularly interconnected, in which a number of protrusions are radially extended and formed; insulating bobbins that surround the stator core; a coil wound around the outer circumference of each bobbin; and an annular back yoke that surrounds in contact with the outer end of the stator core. The insulating bobbins are annularly molded to surround the inner circumferential portion of the stator core, and entirely surround the inner circumferential portion of the stator core, to thus make the inner side surface play a role of a sealing cover, and the rotor includes ferrite magnets in opposition to the inner side surfaces of the bobbins.

METHODS AND APPARATUS FOR PRODUCING FLUIDS FROM A WELL

Permanent magnet motor (PMM) powered artificial lift apparatus and methods of practicing the same. The PMM artificial lift apparatus provides a method for the use of permanent magnet motors below perforations, and which may also be used in conditions of low flow rate or extremely high viscosity above perforations without any active cooling schemes. 1. A system for pumping hydrocarbons from a well having production fluids , the system comprising:a permanent magnet motor in contact with the production fluids; andthe motor positioned in a portion of the well wherein the production fluids are torpid fluids.2. The system of wherein the motor includes solely passive cooling.3. The system of wherein the motor is in fluid contact with the torpid fluid and wherein the passive cooling is provided by heat transfer from the motor to the torpid fluids.4. The system of further comprising the heat transfer is convective and wherein a naturally occurring convective flow pattern of the torpid fluids is established.5. The system of further comprising:a casing installed against a wall of the well;the motor having a housing and the motor further positioned within the well such that a radial gap exists at least partially between the motor housing and the casing; andthe convective pattern travelling in the gap in an upward direction proximate the motor and in a downward direction proximate the casing.6. The system of wherein the motor has a length claim 2 , a diameter claim 2 , and an output rating claim 2 , the system further comprising:a casing having a casing diameter installed against a wall of the well; andthe length, diameter, and output rating in relation to the casing diameter provide a sufficient amount of passive cooling.7. A method for pumping hydrocarbons from a well having production fluids claim 2 , the method comprising:providing a permanent magnet motor in contact with the production fluids; andpositioning the motor in a portion of the well wherein the production fluids ...

VENTILATION SYSTEM FOR A MICRONIZER, IN PARTICULAR FOR WASHING MACHINES-STERILIZERS

The present disclosure concerns a ventilation system to be applied to a micronizer, in such a way that the ventilation does not prevent nebulization, rather it disperses it in an environment that for example is to be sterilized. Thanks to a particular configuration, the ventilation system is also resistant to water present in the environment to be sterilized. 2) A device according to claim 1 , wherein said internal perimetrical chamber is a circular chamber.3) A device according to claim 1 , wherein the holes of said plurality of holes end at a second perimetrical chamber in communication with said interspace.4) A device according to claim 1 , wherein said entrance of said internal perimetrical chamber is connected to a lateral channel claim 1 , formed within a lateral arm connected to said housing claim 1 , said lateral channel being apt claim 1 , in use claim 1 , to guide said ventilation fluid towards said internal perimetrical chamber.5) A device according to claim 4 , characterized in that said lateral arm is connected claim 4 , at the end opposite to said housing claim 4 , to a vertical element connected to said base and comprising a vertical channel in communication with said lateral channel claim 4 , in such a way that claim 4 , in use claim 4 , said ventilation fluid can be introduced into said vertical channel from said base.6) A device according to claim 1 , wherein said housing is connected by one or more arms to respective one or more support vertical elements claim 1 , perpendicular to said plane and fixed to said base.7) A device according to claim 1 , wherein it comprises a plate fixed to said base on the opposite side with respect to said housing in such a way to fix claim 1 , in use claim 1 , said micronizer.8) A device according to claim 1 , wherein above said housing and claim 1 , in use claim 1 , above said active part of said micronizer claim 1 , in the direction perpendicular to said plane claim 1 , a protection mask is placed.9) An ...

Electric coolant pump with expansion compensating seal

An electric coolant pump system is presented including a housing having a main body and an end cap. The main body having a hollow interior and an open end. The end cap is operably connected to the main body and closes the open end of the main body. The system includes a rotor shaft operably connected to the housing. The system includes a rotor operably connected to the rotor shaft and positioned within the hollow interior. The system includes an impeller operably connected to the rotor. The system includes a stator configured to generate a rotating electromagnetic field during operation. The rotor is configured to rotate the impeller in response to the rotating electromagnetic field. The impeller is configured to pump a coolant when rotated. One or more components of the electric coolant pump system thermally expand and contract as the coolant is heated and cooled.

Blower assembly for use in an air handling system and method for assembling the same

A blower assembly includes a housing including an inner shell and an outer shell that define a flow passage therebetween. The inner shell also at least partially defines a cavity. The blower assembly also includes a fan coupled within the housing such that the fan also at least partially defines the cavity. The blower assembly further includes a motor configured to rotate about an axis. The motor is coupled to the inner shell and is positioned within the cavity radially inward of the flow passage.

VACUUM PUMP MOTOR ROTOR, MOTOR INCLUDING SAME AND VACUUM PUMP

In order to provide a motor rotor in which a permanent magnet is prevented from corroding, wherein a motor rotor for use in a motor for driving a pump rotor rotating shaft of a vacuum pump is provided which comprises a rotor core made up of a plurality of steel plates which are laminated in an axial direction and having a through hole, a permanent magnet which is disposed in the through hole, and end plates which are attached individually to axial end portions of the rotor core, wherein an adhesive is applied to a whole surface of each of the plurality of steel plates, and the plurality of steel plates are surface joined to each other and to the end plates via the adhesive. 1. A motor rotor for use in a motor for driving a pump rotor rotating shaft of a vacuum pump comprising:a rotor core made up of a plurality of steel plates which are laminated in an axial direction and having through holes;a permanent magnet which is disposed in the through hole; andend plates which are attached to axial end portions of the rotor core, wherein an adhesive is applied to a whole surface of each of the plurality of steel plates, and the plurality of steel plates are surface joined to each other and to the end plates via the adhesive.2. The motor rotor according to claim 1 , wherein the adhesive is also applied to a whole of a joining surface of each of the end plates before the end plates are joined to the steel plates.3. The motor rotor according to claim 1 , wherein the steel plates of the rotor core are silicone steel plates.4. The motor rotor according to any of claim 1 , wherein the motor rotor is attached to an end portion of a pump rotor rotating shaft.5. The motor rotor according to any of claim 1 , wherein the end plates are non-magnetic metal plates or resin plates.6. The motor rotor according to any of claim 1 , wherein an axial length of the permanent magnet is shorter than an axial length of the rotor core claim 1 , wherein a predetermined end portion gap is formed ...

ELECTRIC DRIVE AND TRANSMISSION FOR A MOTOR VEHICLE

An electric drive unit (E) may include an electric motor (EM) and an electronic control unit (EE) for the open-loop control of the electric motor (EM). The electric motor (EM) has a stator unit (S) and a rotor (R). The electronic control unit (EE) is mounted on an electrically insulating carrier element (ET), where the carrier element (ET) is attached to the stator unit (S). Additionally, the stator unit (S) includes a stator core (SP), where the stator core (SP) is electrically conductively connected to a ground connection (EEG) of the electronic control unit (EE). 119.-: (canceled)20. An electric drive unit (E) , comprising:an electric motor (EM) comprising a stator unit (S) and a rotor (R); andan electronic control unit (EE) configured for open-loop control of the electric motor (EM),wherein the electronic control unit (EE) is mounted on an electrically insulating carrier element (ET),wherein the carrier element (ET) is attached to the stator unit (S), andwherein the stator unit (S) comprises a stator core (SP), the stator core (SP) being electrically conductively connected to a ground connection (EEG) of the electronic control unit (EE).21. The electric drive unit (E) of claim 20 , further comprising a metallic heat sink (K) configured for cooling the electronic control unit (EE) claim 20 , wherein the ground connection (EEG) is electrically conductively connected to the heat sink (K).22. The electric drive unit (E) of claim 21 , wherein the electrically conductive connection between the stator core (SP) and the ground connection (EEG) extends through the heat sink (K).23. The electric drive unit (E) of claim 22 , wherein the electrically conductive connection between the stator core (SP) and the ground connection (EEG) further comprises an electrical conductor (X) claim 22 , the electrical conductor (X) electrically conductively connecting the stator core (SP) and the heat sink (K).24. The electric drive unit (E) of claim 23 , wherein the electrical conductor ( ...

PUMP FIXING STRUCTURE AND PUMP

A pump fixing structure may include a pump including a pump part, motor part, and a fixing base. The pump part may include an outlet port, inlet port and an impeller. The motor part may rotate the impeller and may include a stator which includes a drive coil and a stator core; and a motor case integrally molded with the stator, the motor case structuring an outer peripheral face of the motor part. The outer peripheral face is formed in a substantially circular truncated cone face shape having a draft angle for drawing the motor case from a die. The pump part may include a fixed part fixed to the fixing base. The fixing base may include a bent metal plate and is provided with a motor support part disposed on a lower side. A buffer member may be disposed between the motor part and the motor support part. 1. A pump fixing structure comprising:a pump comprising a pump part and a motor part; anda fixing base to which the pump is fixed;wherein the pump part comprises an outlet port and an inlet port for fluid and an impeller disposed in an inside of the pump part; a stator which comprises a drive coil and a stator core around which the drive coil is wound; and', 'a motor case which is formed of resin and is integrally molded with the stator, the motor case structuring an outer peripheral face of the motor part;, 'wherein the motor part is structured to rotate the impeller and compriseswherein the outer peripheral face of the motor part is formed in a substantially circular truncated cone face shape having a draft angle for drawing the motor case from a die which is used when the stator and the motor case are integrally molded;wherein the pump part comprises a fixed part which is fixed to the fixing base;wherein the fixing base comprises a bent metal plate and is provided with a motor support part disposed on a lower side with respect to the motor part; andwherein a buffer member having elasticity is disposed between the motor part and the motor support part.2. The pump ...

Centrifugal pump and method for manufacturing the same

A centrifugal pump is provided, which includes a rotor assembly, the rotor assembly includes an impeller including multiple blades and a blade fixing portion, the blades and the blade fixing portion are integrally formed by injection molding, and the blades are circumferentially distributed at equal intervals along the blade fixing portion. The blade includes a first side, a second side, a blade top portion and a blade root portion, and the blade root portion and the blade fixing portion are fixed by injection molding. The blade top portion is a cantilever end of the blade, and the first side and the second side are arranged between the blade root portion and the blade top portion. The rotor assembly arranged in such manner can improve the hydraulic efficiency and lift of the centrifugal pump.

Grounding Device for Brushless Electric Motor

A motor includes a rotor assembly includes a rotor and a motor shaft secured to the rotor. The motor further includes stator coils. Circuitry of the motor includes electronic components that cooperatively operate to activate and deactivate the coils to cause the rotor assembly to rotate, and first and second power terminals. An electrically conductive outer housing surrounds the motor. An electrically conductive grounding tab is electrically connected to the first power terminal. The tab contacts a radially-inwardly facing surface of the outer housing to provide a electrostatic discharge path from the outer housing to the ground terminal. 1. An apparatus comprising: a rotor assembly including a rotor and a motor shaft secured to the rotor,', 'stator coils,', 'circuitry that includes electronic components that cooperatively operate to activate and deactivate the coils in a manner that causes the rotor assembly to rotate, and', 'first and second power terminals;, 'a motor includingan electrically conductive outer housing that surrounds the motor; andan electrically conductive grounding tab that is electrically connected to the first power terminal and that contacts an inwardly-facing surface of the outer housing to provide a electrostatic discharge path from the outer housing to the first power terminal.2. The apparatus of claim 1 , wherein the grounding tab includes a securing structure and a strip claim 1 , wherein the securing structure receives the first power terminal claim 1 , and wherein the strip pressingly contacts the inwardly-facing surface of the outer housing.3. The apparatus of claim 2 , wherein the strip includes a proximal section that is coplanar with the securing structure and an upturned distal section that is substantially perpendicular to the proximal section claim 2 , and wherein the distal section contacts the inwardly-facing surface of the outer housing.4. The apparatus of claim 3 , wherein the proximal section does not contact the outer ...

Electrical Feedthrough For Subsea Submersible Well Pump in Canister

A subsea pump assembly includes a tubular conduit that has an upstream end plate and an inlet for flowing well fluid into an interior of the conduit. A power cable opening extends through the upstream end plate. An electrical submersible pump and motor are in the interior of the conduit. The motor has a motor assembly housing with an upstream end having an electrical insulator opening. An end connection secures the upstream end to an interior side of the upstream end plate with the insulator opening registering with the power cable opening. An insulated electrical connector is mounted in the insulator opening. A motor wire in the motor assembly housing joins to an inner end of the electrical connector. A power conductor extends from exterior of the conduit through the power cable opening and joins to an outer end of the electrical connector. 1. A subsea pump assembly , comprising:a tubular conduit adapted to be installed subsea, the conduit having a longitudinal axis, an upstream end plate, and an inlet for flowing well fluid into an interior of the conduit;a power cable opening extending through the upstream end plate;an electrical submersible pump (ESP) in the interior of the conduit, the ESP comprising a motor assembly and a pump, the pump having an intake in fluid communication with the well fluid in the interior of the conduit, the pump having a discharge for pumping the well fluid from the conduit;the motor assembly having a motor assembly housing with an upstream end that secures to an interior side of the upstream end plate over the power cable opening; anda power conductor extending through the power cable opening into the upstream end of the motor assembly housing.2. The submersible pump assembly according to claim 1 , further comprising:an electrical insulator mounted in the upstream end of the motor assembly housing;an electrical connector mounted in the insulator;a motor wire within the motor assembly housing joining an inner end of the electrical ...

Centrifugal pump

A centrifugal pump includes a rotating blade member including an impeller member and a rotor magnet, a main body casing accommodating the rotating blade member, a coil portion that rotates the rotating blade member is located on a periphery of the rotor magnet, and an axial member associated with the main body casing. The rotating blade member pivots around the axial member. The axial member includes an end portion at axial rotor magnet side, and is fixed at the end portion. The main body casing forms a fluid introducing passage, and is associated with a blade casing accommodating the rotating blade member. An end portion of a bearing portion at an axial fluid introducing passage side is protruded such that the end portion of the bearing portion is exposed from an inner periphery side opening portion of the blade casing to the fluid introducing passage side.

Pump assembly

A pump assembly includes a rotor axle, an impeller and a pump housing defining a radial inner reference surface. A drive motor includes a stator accommodated in stator housing and a rotor accommodated in a rotor can. A radial bearing ring is in sliding contact with the rotor axle. A bearing retainer engages the radial bearing ring and centers it with respect to the radial inner reference surface. A neck ring is coupled to the pump housing and has a circumferential wall section. The impeller is located axially between the bearing retainer and the neck ring. The circumferential wall section at least partially extends into the impeller or the impeller at least partially extends into the circumferential wall section. The circumferential wall section includes a cylindrical radial outer surface and a cylindrical radial inner surface. The radial outer surface is eccentric with respect to the radial inner surface.

Pump assembly

A pump assembly (1) includes a rotor axle (45) extending along a rotor axis (R), an impeller (12) fixed to the rotor axle (45), a pump housing (11) accommodating the impeller (12), and a drive motor with a stator (17) and a rotor (51). The rotor (51) is fixed to the rotor axle (45) for driving the impeller (12). A rotor can (57) accommodates the rotor (51). The rotor can (57) includes a rotor can flange (63). An electronics housing (13) has a cap (21) including a first material (139) forming a front face (19) of the cap (21). The front face (19) extends essentially perpendicular to the rotor axis (R). The first material (139) is at least partially overmolded with a second material (141) at an inner side of the cap (21). The second material (141) is more heat-conductive than the first material (139).

METHOD FOR DETERMINING OPERATIONAL PARAMETERS OF A BLOOD PUMP

Methods and apparatuses for determining operational parameters of a blood pump comprising a rotor which transports the blood are provided. The change in the behaviour of at least one first and one second operational parameter, independently from each other, of the pump, is determined. A determination of the flow through the pump and/or the difference in pressure across the pump and/or the viscosity of the blood takes into account the determined change in behaviour of the at least two operational parameters. A modelling for a dynamic model of the known quantities may be carried out and an estimation method using a Kalman filter may be used. 1. A method for determining , operational parameters of a blood pump comprising a rotor which transports blood , the method comprising:determining a change in behaviour of at least two operational parameters including a first operation parameter and a second operation parameter, independently from each other, of the blood pump; anddetermining a flow through the blood pump, a difference in pressure across the blood pump, and/or a viscosity of the blood based on the determined change in behaviour of the at least two operational parameters.2. The method of claim 1 , wherein at least a rotational speed of the blood pump is measured as the first operational parameter and a change in rate of the rotational speed over time is determined as the change in behaviour of the second operational parameter.3. The method of claim 1 , wherein in the blood pump with the rotor which transports the blood claim 1 , a quantity that represents a force acting on the rotor in an axial direction of the blood pump is measured as the second operational parameter claim 1 , and a change in behaviour of this quantity over time is determined.4. The method of claim 1 , wherein determining the change in behaviour of the second operational parameter comprises determining a first time derivative of the second operational parameter.5. The method of claim 1 , wherein ...

Centrifugal pump assembly with electric motor

A centrifugal pump assembly, with electric motor arranged in a casing, includes at one end, a wet section, formed by a volute and containing an impeller, and, at the other end, a box, which contains an electrical board, in contact with one end of the casing. The electric motor is of the permanent-magnet brushless type and the casing is made of stainless steel.

FLUID PROCESSING MACHINES AND FLUID PRODUCTION SYSTEMS

A fluid processing machine that includes a stator capable of generating an electromagnetic field and a first rotor section having at least one impeller and at least one permanent magnet. The stator is configured to electromagnetically engage with the first rotor section so as to rotate the first rotor section about a central axis in a first rotational direction. Further rotor sections can also be included that are induced to rotate in the first rotational direction. Other rotator sections with impellers and permanent magnets can also be included that are driven in a second, contra-rotating, direction by a second stator. Several of the fluid processing machine can be distributed within a surface system or subsea system that transports produced fluid from wells to a surface facility. 1. A fluid processing machine comprising:a first stator configured to generate a rotating electromagnetic field; anda first rotor section comprising at least one impeller and at least one permanent magnet, wherein the first stator is configured to electromagnetically engage with the first rotor section inducing rotation of the first rotor section about a central axis in a first rotational direction thereby causing the at least one impeller to impart kinetic energy on a fluid being processed.2. The machine of claim 1 , comprising a plurality of rotor sections displaced from the first rotor section and along the central axis claim 1 , each rotor section comprising at least one permanent magnet and at least one impeller claim 1 , each rotator section being configured to electromagnetically engage with the first stator and be induced by the first stator to rotate about the central axis in the first rotational direction.3. The machine of or claim 1 , further comprising a plurality of thrust bearings claim 1 , wherein each of the first and plurality of further rotor sections is configured to engage at least one of the thrust bearings to at least partially counteract axial force imparted by the ...

PUMP FOR CIRCULATING WATER TO PREVENT NOISE DURING TRANSITION STATE

A pump for circulating water includes an upper housing formed with an inlet and an outlet of fluid; a lower housing arranged in a lower side of the upper housing , having a space formed therein; an inner housing having an edge part interposed between the upper housing and the lower housing , and an impeller receiving space formed in a middle part; an impeller received inside the upper housing and in the impeller receiving space to be rotatably installed; a rotor installed inside an outer circumference of the impeller ; a spring installed between a lower surface of the impeller and the inner housing; and a stator installed inside the lower housing 1. A pump for circulating water , comprising:{'b': 10', '11', '12, 'an upper housing formed with an inlet and an outlet of fluid;'}{'b': 20', '10, 'a lower housing arranged in a lower side of the upper housing , having a space formed therein;'}{'b': 30', '10', '20', '31, 'an inner housing having an edge part interposed between the upper housing and the lower housing , and an impeller receiving space formed in a middle part;'}{'b': 50', '10', '31', '40', '50', '30', '60', '50, 'an impeller received inside the upper housing and in the impeller receiving space to be rotatably installed, so as to form a flow pathway between the impeller and an inner surface of the inner housing for the flow of fluid; a rotor installed inside an outer circumference of the impeller ;'}{'b': '65', 'a spring installed between a lower surface of the impeller and the inner housing; and'}{'b': 70', '20', '52', '40', '51', '50', '40', '52', '52, 'a stator installed inside the lower housing , wherein the pump for circulating water is formed with a plurality of vertical discharge holes A interconnected with the flow pathway in a body of the impeller so that the fluid inside the flow pathway is discharged to the upper side, and is formed with a plurality of horizontal discharge holes B interconnected with the plurality of vertical discharge holes A.'}2. A ...

ELECTRICAL SPLIT-CAGE OR CANNED COOLANT PUMP

An electric canned coolant pump includes a drive motor comprising a split case provided as a separating can which separates a wet chamber comprising a motor rotor from a dry chamber comprising a motor stator. The separating can comprises a separating can form-fit structure. A Hall sensor is arranged on the separating can. The Hall sensor detects a position of the motor rotor in the dry chamber. The Hall sensor comprises a sensor head and Hall sensor electric connecting lines. A positioning element comprises positioning element electric connecting lines which are connected with the corresponding Hall sensor electric connecting lines. The positioning element electric connecting lines comprise a connecting body comprising a connecting body form-fit structure. The connecting body is electrically insulating and holds the positioning element electric connecting lines. The separating can form-fit structure and the connecting body form-fit structure fix the connecting body on the separating can. 111-. (canceled)12. An electric canned coolant pump comprising:an electric drive motor comprising a split case provided as a separating can, the split case being configured to separate a wet chamber, in which a fluid to be conveyed is provided, from a dry chamber, the separating can comprising a separating can form-fit structure;a pump module configured to be driven by the electric drive motor;a motor rotor configured to be permanently excited, the motor rotor being arranged in the wet chamber;a motor stator configured to be electronically commutated, the motor stator being arranged in the dry chamber;a Hall sensor arranged on the separating can, the Hall sensor being configured to detect a position of the motor rotor in the dry chamber, the Hall sensor comprising a sensor head and Hall sensor electric connecting lines which are configured to be rigid; anda positioning element comprising positioning element electric connecting lines which are configured to be rigid, the positioning ...

MULTIPHASE PUMP

A multiphase pump for pumping a multiphase mixture containing hydrocarbon includes a separation system and a supply system. The separation system has a first separation stage configured to at least partly separate at least one portion of the multiphase mixture into a plurality of phase-enriched components, the first separating stage including an impeller attached to a pump shaft of the multiphase pump and being having an inlet side formed by a seal. The supply system is configured to supply a liquid-enriched liquid component as a lubricant to a pump element to be lubricated. 1. A multiphase pump for pumping a multiphase mixture containing hydrocarbon , comprising:a separation system having a first separation stage configured to at least partly separate at least one portion of the multiphase mixture into a plurality of phase-enriched components, the first separating stage comprising an impeller attached to a pump shaft of the multiphase pump and having an inlet side formed by a seal; anda supply system configured to supply a liquid-enriched liquid component as a lubricant to a pump element to be lubricated.2. A multiphase pump in accordance with claim 1 , whereinthe separation system has a second separation stage configured to separate the liquid-enriched liquid component into a more highly enriched liquid component and a gas-enriched gas component.3. A multiphase pump in accordance with claim 2 , whereinthe second separation stage is arranged upstream of the pump unit in the supply system.4. A multiphase pump in accordance with claim 2 , whereinthe second separation stage has a centrifuge with a rotating centrifugal element with an inwardly disposed gas passage and an outwardly disposed liquid passage which leads through a bearing for supporting the centrifugal element.5. A multiphase pump in accordance with claim 4 , whereina central shaft supporting the centrifugal element.6. A multiphase pump in accordance with claim 2 , whereinthe supply system has a cooling ...

MICRO HYDRAULIC SUSPENSION MECHANICAL PUMP

A micro hydraulic suspension mechanical pump with a volute, an upper cover, an impeller, a brushless motor, a waterproof sleeve and the water lubrication spiral groove thrust bearings, in which a water inlet channel and a water outlet channel are provided on the volute, and a middle water inlet hole is formed on the upper cover. The brushless motor includes a motor shell, a coil, a magnetic steel rotor, a waterproof sleeve, a rotor sleeve and a rotor rotating shaft; and above and below the magnetic steel rotor are respectively provided one water lubrication spiral groove thrust bearing. A liquid film can be formed between the stationary ring and the rotating ring to enable the magnetic steel rotor to be suspended, and a liquid film can also be formed between the outer wall of the rotor sleeve and the inner wall of the waterproof sleeve. 1. A micro hydraulic suspension mechanical pump comprising: a volute , an upper cover , an impeller , a brushless motor , a waterproof sleeve and a water lubrication spiral groove thrust bearing , wherein ,a water inlet channel and a water outlet channel are provided on the volute, inner space of the volute serves as a pump cavity, and the water inlet channel and the water outlet channel are respectively communicated with the pump cavity;the brushless motor includes a motor shell, a coil, a magnetic steel rotor, a waterproof sleeve, a rotor sleeve and a rotor rotating shaft, in which the motor shell is fixed connected to the volute and receives the upper cover, the coil is installed on the side wall of the motor shell, the inner wall of the motor shell is sleeved with the waterproof sleeve for protecting the coil, a middle water inlet hole communicated with the pump cavity is formed on the upper cover to allow water to flow into the waterproof sleeve, the magnetic steel rotor is located within the motor shell and is fixedly arranged on the rotor rotating shaft in a sleeved manner, the rotor sleeve is connected to the outer side of ...

AIR BLOWER

In an air blower, an exhaust includes fins and extends in a first direction that is a radial component of an impeller. Assuming that a first virtual circle is a circle connecting ends on a side opposed to the impeller in a fin group in a first direction, and that a second virtual circle is a circle larger than a virtual circle connecting radially outer edges of blades of the impeller with a central axis as a center in diameter and is connected to the first virtual circle at one point, a radius of the first virtual circle is larger than a radius of the second virtual circle. 1. An air blower comprising:an impeller centered on a central axis extending in a vertical direction;a motor that rotates the impeller about the central axis; anda housing that accommodates the impeller; wherein a lower plate which covers a lower side of the impeller and to which the motor is fixed;', 'a side wall that covers a side of the impeller; and', 'an upper plate that covers an upper side of the impeller;, 'the housing includesat least one of the upper plate and the lower plate includes an air intake portion;an exhaust extends in a first direction that is a radial component of the impeller;the exhaust includes a plurality of fins; andassuming that a first virtual circle is a circle connecting ends on a side opposed to the impeller in the first direction in a fin group that is at least a part of the plurality of fins, and that a second virtual circle is a circle larger than a virtual circle connecting radially outer edges of a plurality of blades of the impeller with the central axis as a center in diameter and is connected to the first virtual circle at one point, a radius of the first virtual circle is larger than a radius of the second virtual circle.2. The air blower according to claim 1 , wherein assuming that a virtual circle connection point is a connection point between the first virtual circle and the second virtual circle:a distance between a radially outer end of the blade and ...

Lubricating downhole rotating machine

An electric machine is configured to be positioned within a wellbore. The electric machine enclosed within a housing isolates the electric machine from fluids within the wellbore. A first lubrication circuit includes a lubrication reservoir within the housing. The lubrication reservoir is fluidically connected to the electric machine. The first lubrication circuit is configured to provide lubrication to a bearing within the electric machine. A fluid rotor is configured to move or be moved by a fluid within the wellbore. A magnetic coupling couples the fluid rotor and a rotor of the electric machine to rotate in unison. A second lubrication circuit is configured to provide lubrication to a bearing supporting the fluid rotor. 1. A well tool comprising:an electric machine configured to be positioned within a wellbore, the electric machine enclosed within a housing isolating the electric machine from fluids within the wellbore;a first lubrication circuit comprising a lubrication reservoir within the housing, the lubrication reservoir fluidically connected to the electric machine, the first lubrication circuit configured to provide lubrication to a bearing within the electric machine;a fluid rotor configured to move or be moved by a fluid within the wellbore;a magnetic coupling that couples the fluid rotor and a rotor of the electric machine to rotate in unison; anda second lubrication circuit configured to provide lubrication to a bearing supporting the fluid rotor.2. The well tool of claim 1 , where the first lubrication circuit comprises a lubrication pump within the housing claim 1 , the lubrication pump being driven by a hydraulic motor claim 1 , the hydraulic motor being driven by a fluid flow provided by the second lubrication circuit.3. The well tool of claim 1 , further comprising:an electric motor that is separate from the electric machine; anda lubrication pump coupled to and driven by the electric motor.4. The well tool of claim 1 , further comprising a ...

Submersible Pump Apparatus

A submersible pump apparatus providing a motor assembly, a pump assembly, and a plastic pump housing. The motor assembly is either a canned motor assembly or a four inch motor assembly. The canned motor assembly is designed to prevent the immediate destruction of the submersible pump apparatus upon the occurrence of the breaching or leaking of the seals. The pump assembly is designed with either a single stage pump or multiple stage pump that utilizes a unique combination of propellers and intermediate flow straighteners, and driving mechanisms for the same. The plastic pump housing is designed to accommodate attachment of either the canned motor assembly or the four inch motor assembly to the same pump assembly. 1. A pump assembly for use within a fluid comprising:the pump assembly having a proximal end and a distal end and defining an opening between them;a motor and further defining a motor shaft extending outwardly from the motor within the opening of the pump assembly;a propeller freely rotatable within the opening;means for releaseably coupling the motor shaft to the propeller;an intermediate flow straightener situated within the opening and positioned between the propeller and the distal end, the intermediate flow straightener providing a plurality of vanes with each of the plurality of vanes having a curvilinear arc; andwherein, when the motor is engaged causing the motor shaft to rotate and drive the propeller, the propeller forcing the fluid to enter through the proximal end and into the opening of the pump assembly and causing the fluid to be in a turbulent state, the intermediate flow straightener engaging the fluid in the turbulent state with the curvilinear arc of each of the plurality of vanes forcing the fluid to change from the turbulent state into a substantially straight flow prior to the fluid exiting out the distal end of the pump assembly.2. The pump assembly of wherein the propeller provides a propeller hub and a plurality of blades extending ...

Pump device

In a pump device, in a flat plate-shaped circuit board that is disposed so that the axial direction of a central rotating shaft and the thickness direction coincide with each other, a notch that a cut-out from an end face of the circuit board toward an inside of the circuit board is formed. In the vicinity of the notch on a surface of the circuit board, a solder land where a plurality of core wires that are exposed on the distal end side of a lead wire are fixed by soldering is formed. In the pump device, the distal end portion of a cover portion including the distal end of the cover portion of the lead wire drawn out from the circuit board is disposed in the notch.

LIQUID PUMP

A fluid pump for conveying a fluid may include an internal rotor rotatable about an axis of rotation relative to an external stator and an impeller connected to the internal rotor in a rotationally fixed manner configured to convey a fluid. The internal rotor may include a rotor receiving sleeve having a base body. The base body may include a receiving chamber configured to receive an anchor unit. The internal rotor may further include a bearing bushing penetrating the rotor receiving sleeve coaxially to the axis of rotation. The bearing bushing may be configured to receive a rotor shaft. The impeller may be directly connected to the rotor receiving sleeve in a rotationally fixed manner. 1. A fluid pump for conveying a fluid , comprising:an internal rotor about an axis of rotation relative to an external stator; the internal rotor including a rotor receiving sleeve, the rotor receiving sleeve including a base body having a receiving chamber configured to receive an anchor unit;', 'the internal rotor further including a bearing bushing structured and arranged to penetrate the rotor receiving sleeve coaxially to the axis of rotation, the bearing bushing configured to receive a rotor shaft;, 'an impeller connected to the internal rotor in a rotationally fixed manner for conveying a fluid;'}wherein the impeller is directly connected to the rotor receiving sleeve in a rotationally fixed manner.2. The fluid pump according to claim 1 , wherein the receiving chamber is closable by a cover claim 1 , and the cover is a separate component from the impeller.3. The fluid pump according to claim 2 , wherein the impeller is directly connected to the base body in a rotationally fixed manner.4. The fluid pump according to claim 1 , wherein the receiving chamber is closable by a cover and the impeller is directly connected to the cover in a rotationally fixed manner.5. The fluid pump according to claim 4 , wherein the impeller and the cover are integrally provided as a single piece.6 ...

IMPLANTABLE BLOOD PUMP

A method for assisting blood circulation in a patient includes drawing a flow of blood from a patient's heart into a blood flow channel formed by a housing. The flow of blood is passed through a motor stator to a rotor disposed within the blood flow channel. The motor stator is arranged circumferentially around the blood flow channel. The rotor has permanent magnetic poles for magnetic levitation and rotation of the rotor. The motor stator is controlled to act as a radial bearing for magnetic levitation of the rotor and to rotate the rotor within the blood flow channel. The rotor is levitated within the blood flow channel in the direction of the rotor axis of rotation via passive magnetic interaction between the rotor and the motor stator. The flow of blood is output from the blood flow channel to the patient. 1. A method for assisting blood circulation in a patient , the method comprising:drawing a flow of blood from a patient's heart into a blood flow channel formed by a housing;passing the flow of blood through a motor stator disposed within the housing and to a rotor disposed within the blood flow channel, the motor stator comprising a plurality of stator poles arranged circumferentially around the blood flow channel, the rotor having a rotor axis of rotation and including at least one rotor magnet for rotation and levitation of the rotor within the blood flow channel;controlling delivery of current to a plurality of drive coils to generate electromagnetic fields to interact with the at least one rotor magnet to rotate the rotor to pump blood through the blood flow channel, each of the drive coils being wound around a respective one of the plurality of stator poles, each of the stator poles axially overlapping with the at least one rotor magnet in the direction of the rotor axis of rotation;controlling delivery of current to a plurality of levitation coils to generate electromagnetic fields to interact with the at least one rotor magnet to control a radial ...

METHOD FOR DETERMINING OPERATIONAL PARAMETERS OF A BLOOD PUMP

Methods and apparatuses for determining operational parameters of a blood pump comprising a rotor which transports the blood are provided. The change in the behaviour of at least one first and one second operational parameter, independently from each other, of the pump, is determined. A determination of the flow through the pump and/or the difference in pressure across the pump and/or the viscosity of the blood takes into account the determined change in behaviour of the at least two operational parameters. A modelling for a dynamic model of the known quantities may be carried out and an estimation method using a Kalman filter may be used. 1. A method for determining operational parameters of a blood pump comprising a rotor which transports blood , the method comprising:determining a change in behaviour of at least two operational parameters including a first operation parameter and a second operation parameter, independently from each other, of the blood pump; anddetermining a flow through the blood pump, a difference in pressure across the blood pump, and/or a viscosity of the blood based on the determined change in behaviour of the at least two operational parameters,wherein a back EMF (electromagnetic force) of a brushless drive motor of the rotor is measured and, in the determination of the flow through the blood pump, the difference in pressure across the blood pump, and/or the viscosity of the blood, a differential equation is taken into consideration which describes a dependency of the back EMF on a rotor deflection in an axial direction of the blood pump, a rotational speed of the rotor, and drive power.2. The method of claim 1 , wherein at least a rotational speed of the blood pump is measured as the first operational parameter and a change in rate of the rotational speed over time is determined as the change in behaviour of the second operational parameter.3. The method of claim 1 , wherein in the blood pump with the rotor which transports the blood claim ...

CENTRIFUGAL PUMP HAVING AXIALLY MOVEABLE IMPELLER WHEEL FOR CONVEYING DIFFERENT FLOW PATHS

A pump assembly () includes an electric drive motor () and with at least one impeller () which is driven by the motor. The impeller is movable in an axial direction (X) between at least one first and one second position. The impeller in the first axial position is situated in a first flow path through the pump assembly and delivers a fluid through this first flow path. The impeller in the second position is situated in a second flow path through the pump assembly and delivers a fluid through this second flow path. The pump assembly () is configured such that a movement of the impeller (), between the first and the second position at least in one direction, is effected by a hydraulic force which acts on the impeller () and is produced by the delivered fluid. A heating installation is provided with such a pump assembly. 1. A pump assembly comprising:an electric drive motor;at least one impeller driven by the electric drive motor, wherein:the impeller is movable in an axial direction between at least one first axial position and a second axial position;the impeller in the first axial position is situated in a first flow path through the pump assembly and delivers fluid through the first flow path; andthe impeller in the second axial position is situated in a second flow path through the pump assembly and delivers a fluid through the second flow path;the pump assembly is configured such that a movement of the impeller between the first axial position and the second axial position at least in one direction is effected by a hydraulic force which acts on the impeller and is produced by the delivered fluid.2. A pump assembly according to claim 1 , wherein the pump assembly is configured such that the impeller on operation is held in at least one of the positions by at least one hydraulic force produced by the delivered fluid.3. A pump assembly according to claim 1 , wherein the pump assembly is configured such that the impeller on operation is held in at least one of the ...

Motor pump

A motor pump capable of preventing deformation of a resin-made motor casing due to heat while securing a mechanical strength of the motor casing is disclosed. The motor pump includes a motor casing made of resin. The motor stator is disposed in the motor casing. The motor casing includes a partition wall located between the impeller and stator coils, ribs extending radially, and an inner frame connected to an inner edge of the partition wall. The partition wall is fixed to the ribs. The motor casing has guide protrusions formed on an outer surface of the inner frame, and further has recesses formed between the guide protrusions.

Floating-bearing motor pump cooled by a circulating fluid

The present invention relates to a motor pump ( 10 ) free from bearings, cooler and mechanical sealing, more specifically to a hydraulic motor pump, which comprises a housing ( 14 ) defined by a first chamber ( 19 ) isolated from fluids and a second chamber ( 17 ). In the second chamber ( 17 ) there is an integral rotor/turbine assembly ( 11 ), the rotor and the turbine being induced by magnetic forces of a stator ( 12 ), which is located in the first chamber ( 19 ). A fluid inlet ( 15 ) and a fluid outlet ( 16 ) are located at the same end of the motor pump ( 10 ), so that most of the fluid impelled into the motor pump ( 10 ) is guided directly to the outlet ( 16 ) with the aid of a fluid guide ( 20 ) located at the front end ( 24 ) of the rotor/turbine assembly ( 11 ), enabling an increase in the flowrate inside the motor pump ( 10 ), thus increasing the yield thereof.

MAGNETICALLY COUPLED SEALLESS CENTRIFUGAL PUMP

A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the cannister under catastrophic bearing failure. 1. A magnetically driven centrifugal pump having an axis of impeller rotation , comprisinga pump case;an open vane impeller in the pump case rotatably mounted about the axis of impeller rotation;a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer by threads extending about the axis of impeller rotation and provided directly on the stuffing box inner and the stuffing box outer;a rotor axially fixed and rotatably mounted about the axis of impeller rotation in the stuffing box inner, the impeller being fixed to rotate with the rotor;a drive including a drive output rotatably mounted about the axis of impeller rotation;a magnetic coupling between the rotor and the drive output; anda canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive.2. The magnetically driven centrifugal pump of claim 1 , the rotor being concentric with and outwardly of the drive output at the magnetic coupling in the stuffing box.3. The magnetically driven centrifugal pump of further comprisinga journal rotor bushing between the ...

Device with assembly mechanism and electric pump

A device with an assembly mechanism may be provided. The device with the assembly mechanism may include: a first member; a second member; and a fastener fastening the first member and the second member to each other. The fastener may include a fastening portion being fastened to each of the first member and second member by injection welding; and the assembly mechanism that is integrally formed with the fastening portion, and is configured to assemble the device to an external device.

Canned Motor Pump Thrust Shoe Heat Shield

A heat shield for a thrust bearing assembly of a pump. The heat shield includes a member having an inner surface and an outer surface. A raised flange is formed on a perimeter of the inner surface. The raised flange is configured to seal with a back surface of a thrust shoe holder, and form a cavity between the inner surface and the back surface of the thrust shoe holder. At least one weep hole is on the flange. The weep hole is configured to allow water to enter the cavity to form an insulating stagnant water layer.

PUMP UNIT

A pump assembly with a stator housing (), in whose inside a wet-running electric motor with a can () is arranged, and with a pump housing () connected to the stator housing (). An annular shaped seal () is arranged between the stator housing () and a collar () of the can () on the one hand, and the pump housing () on the other hand. 1. A pump assembly comprising:a stator housing with an inside;a wet-running electric motor with a can arranged in the stator housing inside;a pump housing connected to the stator housing; andan annular shaped seal arranged between the stator housing and a radial collar of the can on the one hand, and the pump housing on the other hand.2. A pump assembly according to claim 1 , wherein in limited peripheral sections claim 1 , free spaces are present between the inner periphery of the shaped seal and a radially inwardly oppositely lying wall of the can and/or between the outer periphery of the shaped seal and a radially outwardly oppositely lying wall of the pump housing claim 1 , said free spaces being designed in a manner such that the shaped seal can expand into the free spaces with an axial compression.3. A pump assembly according to claim 2 , wherein the shaped seal claim 2 , in the peripheral sections between the free spaces claim 2 , bears on the oppositely lying wall.4. A pump assembly according to claim 2 , wherein several radially inwardly directed prominences are formed on the inner periphery of the shaped seal claim 2 , arranged distributed over the periphery claim 2 , between which prominences the free spaces are situated.5. A pump assembly according to claim 2 , wherein several radially outwardly directed prominences are formed on the outer periphery of the shaped seal claim 2 , arranged distributed over the periphery claim 2 , between which prominences the free spaces are situated.6. A pump assembly according to claim 2 , wherein the inner periphery and/or the outer periphery of the shaped seal has a circular basic shape.7. A ...

Cryogenic installation comprising a circulator

The invention concerns a circulator (2) for circulating a refrigerant fluid (4) in a circuit (6) of a cryogenic installation (1) from and to an element (3) having a thermal load, the circulator (2) including a drive module (8a, 8b) and a pumping module (9a, 9b) including a centrifugal wheel (10), said drive module (8a, 8b) having a magnetic coupling (51) to said pumping module (9a, 9b) in order to drive said centrifugal wheel (10) in a rotary movement.

Pump assembly

A pump assembly (1) includes an impeller (12) with a rotor axis (R), a pump housing (11) accommodating the impeller (12), a drive motor with a stator (14) and a rotor (51) for driving the impeller (12). A rotor can (57) accommodates the rotor (51), and a stator housing (13) accommodates the stator (14). The rotor can (57) includes a rotor can flange (63) having a lateral rotor can flange face (87) fitting within a peripheral wall (69) of the pump housing (11). The lateral rotor can flange face (87) has at least three radial projections (91) abutting against the peripheral wall (69) of the pump housing (11) and centering the rotor can (57) with respect to the peripheral wall (69) of the pump housing (11).

Pump device

A pump device includes a casing, an impeller, a base, and a motor. The casing includes a pump chamber, and an inlet and an outlet. The impeller is accommodated in the pump chamber. The motor is connected to the casing for driving the impeller to rotate and includes a rotor chamber for receiving a rotor. The base is disposed between the impeller and the motor and includes an accommodating groove having an inlet port in communication with the rotor chamber to allow fluid in the pump chamber to enter into the rotor chamber. In the pump device, precipitation has been performed to fluid in the accommodating groove before the fluid enters into the rotor chamber, thus the impurity particles can be prevented from entering into the rotor chamber, thereby prolonging the service life of the pump device.

Drain pump and washing machine using the same

A drain pump has a sealed cavity formed by a motor base and a pump casing. A partition plate divides the cavity into a motor cavity, and a pump impeller cavity. A side of the partition plate facing the motor cavity is provided with a bearing base. Another side facing the pump impeller cavity comprises a plane; a bearing mounted in the bearing base penetrates through the two cavities. The bearing in the pump impeller cavity slightly protrudes from the plane of the partition plate, and is tightly attached to a pump impeller in the pump impeller cavity, to form a second contact. The pump impeller and a pump impeller shaft are subjected to integral injection molding. The pump impeller shaft is tightly fixed in the bearing, penetrates through the partition plate, enters the motor cavity, and is connected with the pump shaft in the motor cavity.

Subsea process lubricated water injection pump

A subsea water injection pump includes components that are cooled and lubricated by the process fluid. The pump includes opposing stages of impellers in a “back-to-back” arrangement such that the axial forces of the impeller stages partially or nearly fully offset each other. In some cases, a combination of barrier fluid and process fluid is used for lubrication and cooling.

Electric pump

An electric pump includes: a motor; an impeller rotated by the motor; a motor housing portion that houses the motor; an impeller housing portion that houses the impeller and is positioned at one side with respect to the motor housing portion in a rotation axis of the motor; an introduction pipe portion that introduces a fluid into the impeller housing portion and is positioned at the one side with respect to the motor housing portion; a discharge pipe portion that discharges the fluid from the impeller housing portion; and a printed circuit board electrically connected to a coil of the motor and positioned at the one side with respect to the motor housing portion.

PUMP APPARATUS

The present invention relates to a pump apparatus. The pump apparatus includes: an impeller () in which a permanent magnet () is embedded; a pump casing () which houses the impeller (); a motor stator () having a plurality of stator coils (B); a motor casing () which houses the motor stator (); a bearing assembly () which supports the impeller (); a vibration sensor () for detecting a vibration of the bearing assembly (); and a controller () connected to the vibration sensor (). The controller () calculates the rate of change in the vibration based on the vibration detected by the vibration sensor () and, when the rate of change in the vibration is higher than a predetermined threshold value, performs at least one of an operation to stop the supply of electric current to the motor stator () and an operation to trigger an alarm. 1. A pump apparatus comprising:an impeller in which a permanent magnet is embedded;a pump casing which houses the impeller;a motor stator having a plurality of stator coils;a motor casing which houses the motor stator;a bearing assembly which supports the impeller;a vibration sensor for detecting a vibration of the bearing assembly; anda controller connected to the vibration sensor, wherein the controller calculates the rate of change in the vibration based on the vibration detected by the vibration sensor and, when the rate of change in the vibration is higher than a predetermined threshold value, performs at least one of an operation to stop the supply of electric current to the motor stator and an operation to trigger an alarm.2. The pump apparatus according to claim 1 , further comprising an inverter device which supplies electric current to the motor stator claim 1 , wherein the threshold value is a first threshold value claim 1 , and wherein the controller is connected to the inverter device claim 1 , calculates the rate of change in the electric current supplied from the inverter device to the motor stator and claim 1 , when the rate ...

FAN DEVICE

A fan device includes a bottom shell, a cover, and an impeller. The cover includes a main body, a support, and a spoiler. The main body has a through opening. A connection position between the support and the main body has a first folding line. The support is bended along the first folding line to form a portion of the through opening. The support is perpendicular to the main body, and is abutted against the bottom shell. A connection position between the spoiler and the main body has a second folding line. The spoiler is bended along the second folding line to locate in the through opening. An acute angle is formed between the spoiler and the surface of the main body facing away from the bottom shell. The impeller is located in an accommodating space between the cover and the bottom shell. 1. A fan device comprising:a bottom shell; a main body having a through opening;', 'a support, wherein a connection position between the support and the main body has a first folding line, the support is bended along the first folding line to form a portion of the through opening, the support is perpendicular to the main body, and the support is abutted against the bottom shell; and', 'a spoiler, wherein a connection position between the spoiler and the main body has a second folding line, the spoiler is bended along the second folding line to locate in the through opening, and an acute angle is formed between the spoiler and a surface of the main body facing away from the bottom shell; and, 'a cover located on the bottom shell, wherein an accommodating space is formed between the cover and the bottom shell, and the cover comprisesan impeller located in the accommodating space.2. The fan device of claim 1 , wherein the acute angle is smaller than or equal to 45 degrees.3. The fan device of claim 1 , wherein the impeller is operated for forming airflow claim 1 , and a lengthwise direction of the spoiler is substantially perpendicular to a direction of the airflow.4. The fan device ...

Fuel system for an aircraft

A fuel system for an aircraft is provided including a fuel tank configured to receive fuel and a fuel pump. The fuel pump includes a motor disposed proximate the fuel tank. The fuel pump further includes a power supply in electrical communication with the motor and disposed outside the fuel tank. The fuel pump further includes an impeller disposed within the fuel tank and rotatably coupled to the motor. The impeller includes a shaft having a first end and a second end spaced from the first end with the motor coupled to the first end. The shaft has a resistivity greater than the resistivity of the fuel tank between the first end and the second end to minimize electrical transfer between the motor and the fuel.

Motor casing for pumps, particularly centrifugal pumps and peripheral centrifugal pumps

A motor casing for pumps, particularly centrifugal pumps and peripheral centrifugal pumps, containing a motor associated with the hydraulic part, provided with at least one impeller, by means of a rotation transmission shaft, the motor casing having at least one surface that is struck by pumping liquid that arrives from the hydraulic part and is provided with an oxidation-resistant coating.

SOLAR POWERED IRRIGATION APPARATUS

The present disclosure relates to the field of apparatus used in agriculture and irrigation. The existing solutions available with small acreage farmers having access to shallow groundwater are too large or too small in capacity as compared to the size of the farms and have designs which are complicated or unnecessarily expensive. The present disclosure envisages an apparatus () which is environment friendly, economical, compact and requires minimum human intervention for operation. The apparatus of the present disclosure () has components having dimensions derived from a target specific speed ranging from 600 to 2000 (US units—rpm, gpm, ft) making the apparatus () most suitable and efficient for the afore-stated application. 1. A solar powered irrigation apparatus comprising:a. at least one volute inlet adapted to channelize and pressurize at least one fluid from the outside of said apparatus to the inside of said apparatus;b. an impeller adapted to rotate and suck in said pressurized and channeled fluid and further pressurize said fluid by centrifugally discharging said fluid;c. an accumulator housed co-axially and concentrically around said impeller, having an area sized to maintain a constant radial momentum and adapted to receive said centrifugally discharged fluid and channel said centrifugally discharged fluid to an outlet nozzle;d. a motor adapted to drive said impeller;e. a housing, having an upper end and a lower end;f. a volute plate, having a top end and a bottom end, adapted to mount said impeller and said accumulator at said top end and said motor and said upper end of the housing at said bottom end;g. a back plate operatively coupled with said lower end of the housing;wherein the dimensions of the components (a) to (g) are derived from a target specific speed ranging from 600 to 2000.2. The apparatus as claimed in claim 1 , being a submersible centrifugal pump.3. The apparatus as claimed in claim 1 , adapted for use in farms having an area ranging ...

AUTOMOTIVE ELECTRICAL GAS PUMP

An automotive electrical gas pump includes an electronically commutated motor which drives a motor rotor to rotate within a motor can. The motor has a motor stator which comprises at least one static electro-magnetic coil. An electronic circuit board drives the at least one electro-magnetic coil. A mounting frame includes a motor can and a stator bed. The stator bed embeds the motor stator at least in part. The mounting frame is made of a plastic material which includes a thermally high-conductive filler material. 111-. (canceled)12. An automotive electrical gas pump comprising:a motor which is configured to be electronically commutated and to drive a motor rotor to rotate within a motor can, the motor comprising a motor stator which comprises at least one static electro-magnetic coil;an electronic circuit board configured to drive the at least one electro-magnetic coil; anda mounting frame comprising a motor can and a stator bed which is configured to at least in part embed the motor stator, the mounting frame being made of a plastic material comprising a thermally high-conductive filler material.13. The automotive electrical gas pump as recited in claim 12 , wherein the motor stator comprises a single electro-magnetic coil.14. The automotive electrical gas pump as recited in claim 12 , wherein the automotive electrical gas pump is a flow pump.15. The automotive electrical gas pump as recited in claim 12 , wherein claim 12 ,the motor stator further comprises a magnet yoke, andthe mounting frame is configured to be in a thermal contact with the at least one electro-magnetic coil and with the magnet yoke of the motor stator.16. The automotive electrical gas pump as recited in claim 12 , wherein the plastic material of the mounting frame is a polyamide plastic.17. The automotive electrical gas pump as recited in claim 12 , wherein the thermally high-conductive filler material consists of ceramic particles.18. The automotive electrical gas pump as recited in claim 17 , ...

BRUSHLESS MOTOR CONTROL DEVICE

In a brushless motor control device, a microcontroller determines a current-on phase of a motor based on zero crossing detected by a position detection circuit, and the inverter circuit generates a voltage for current-on to the determined current-on phase. In a case in which zero crossing has been successively detected plural times, in a phase that was switched from the current-on phase to a current-off phase, in a PWM control cycle after a predetermined masking period, the microcontroller controls to interrupt current to coils of all phases of the motor body. In a state in which current-on has been interrupted, the microcontroller determines the current-on phase based on zero crossing detected in one of the three phases, the inverter circuit generates the voltage for current-on for the determined current-on phase and restarts current-on to the coils. 1. A brushless motor control device comprising:a drive circuit configured to generate a voltage to be applied to a coil of a current-on phase of a three phase motor;a zero crossing detection section configured to compare an induction voltage generated in the coil of a current-off phase of the three phase motor with a reference voltage, and to detect zero crossing of the induction voltage; anda control section configured to control the drive circuit to determine the current-on phase based on the detected zero crossing and to perform phase switching to current-on, for the coil of the determined current-on phase,wherein, in a case in which zero crossing has been successively detected, in the coil that was switched from the current-on phase to the current-off phase, in a predetermined period including a time when a masking period has elapsed from switching, the control section determines the current-on phase based on the detected zero crossing, in a state in which current to the coils of all phases has been interrupted, and controls the drive circuit to set the coil of the determined current-on phase to current-on.2. The ...

SYSTEM FOR THE CIRCULATION OF GAS IN AIRS GAPS OF ROTATING MACHINES

A system for the recirculation of gas in air gaps of rotating machines via an ejector, a motor and a pump, including circulating a gas extracted from a gas-extraction unit which is located in the pump. This gas circulates in the gap between the rotors and the stator of the motor. The rotor of the motor is coupled to the shaft of the pump, and in one or more embodiments the gas from the gas-extraction unit flows from the pump to the ejector in order to be injected into the air gap between the rotor and the stator, thereafter returning to a process line. In one or more embodiments, the gas from the gas-extraction unit flows from the pump, and is injected directly into the air gap, and thereafter passes via the ejector in order to recirculate the gas to the process line. 1. A system for the circulation of gas in annular spaces of rotating machines , comprising:a pump, provided with a gas-extraction unit and coupled to a rotor of a motor through a shaft, said rotor surrounded by a stator forming an annular space between said rotor and said stator;an ejector comprising a converging nozzle, which is provided with a motivating inlet and a narrowing at its outlet, said converging nozzle being connected to a discharge line of the pump through a first pipe, said ejector being further provided with a perpendicular suction inlet, said suction inlet being connected to the gas-extraction unit through a second pipe, said converging nozzle and suction inlet both being interconnected to a throat where a mixture of motivation fluid and gas coming from the gas-extraction unit occurs, said throat being coupled to a diffuser where the mixture of motivation fluid and gas is pressurized,wherein the gas-extraction unit of pump separates the process fluid gas from a process line, andwherein the annular space is connected to a discharge of the ejector through a third pipe; and the annular space is connected to the process line upstream of the pump through a fourth pipe.2. The system ...

PUMP HOUSING MADE OF A MAGNETIC AND A NON-MAGNETIC MATERIAL

One aspect of the invention relates to a pump device comprising an impeller; a pump housing surrounding an interior region and having an inlet and an outlet. The impeller is provided in the interior region of the pump housing. The wall of the pump housing has at least one first subregion and at least two further subregions in at least one plane perpendicular to the longitudinal extension of the pump housing. The at least one first subregion comprises at least 60% by weight, based on the total mass of the at least one first subregion, of at least one nonmagnetic material. The further subregions comprise at least 41% by weight, based on the total mass of the further subregions, of at least one ferromagnetic material, wherein each further subregion is adjacent to at least one first subregion in the plane. 117-. (canceled)18. A pump device comprising:a pump housing comprising a wall surrounding an interior region and having an inlet and an outlet;an impeller provided in the interior region of the pump housing;wherein the wall of the pump housing has at least one first subregion and at least two further subregions in at least one plane perpendicular to the longitudinal extension of the pump housing;wherein the at least one first subregion comprises at least 60% by weight, based on the total mass of the at least one first subregion, of at least one nonmagnetic material;wherein the further subregions comprise at least 41% by weight, based on the total mass of the further subregions, of at least one ferromagnetic material;wherein each further subregion is adjacent to at least one first subregion in the plane; andwherein the at least one first subregion and the further subregions are connected to one another in a material-fitting manner.19. The pump device of claim 18 , wherein at least part of each further subregion is in each case surrounded by at least one electric coil.20. The pump device of claim 18 , wherein the nonmagnetic material of the at least one first subregion ...

METHOD FOR FABRICATING A STATOR UNIT FOR A SUPER-HIGH HEAT-RESISTANT MOTOR PUMP AND A STATOR UNIT FABRICATED BY THE METHOD

Disclosed herein is a method for fabricating a stator unit for a super-high heat-resistant motor pump, comprising: coating a bare copper wire with a first heat-resistant resin layer; applying a woven fiber cladding to an outer surface of the first heat-resistant resin layer; coating an outer surface of the woven fiber cladding with a second heat-resistant resin layer; winding the coated wire by the second heat-resistant resin layer around an iron core for the stator unit; and applying an inorganic sheath to an outer surface of the second heat-resistant resin layer. 1. A method for fabricating a stator unit for a super-high heat-resistant motor pump , comprising:coating a bare copper wire with a first heat-resistant resin layer;applying a woven fiber cladding to an outer surface of the first heat-resistant resin layer;coating an outer surface of the woven fiber cladding with a second heat-resistant resin layer;winding the coated wire by the second heat-resistant resin layer around an iron core for the stator unit; andapplying an inorganic sheath to an outer surface of the second heat-resistant resin layer.2. The method for fabricating a stator unit for a super-high heat-resistant motor pump of claim 1 , wherein the first heat-resistant resin layer and the second heat-resistant resin layer include a polyimide based resin claim 1 , respectively.3. The method for fabricating a stator unit for a super-high heat-resistant motor pump of claim 1 , wherein the woven fiber cladding includes a plurality of glass fibers woven to intersect with each other in a helical direction.4. The method for fabricating a stator unit for a super-high heat-resistant motor pump of claim 1 , wherein the applying of the inorganic sheath to the outer surface of the second heat-resistant resin layer includes impregnating the wound electric wire in a mixture of a ceramic powder and a polyimide resin in a vacuum condition.5. A stator unit for a super-high heat-resistant motor pump claim 1 , ...

FLUID CIRCULATOR WITH HEAT SINK OR DISSIPATOR

The present invention relates to a fluid circulator () comprising a pump body () comprising an impeller () for the movement of the fluid; a motor body () comprising an electric motor () for putting the impeller () into rotation around an axis (X-X); as well as an end portion () associated with the motor body () and containing at least one electronic board () for the control of the circulator (). Advantageously, the end portion () is a monolithically cup-shaped lid () fitted onto the motor body () in substantial continuity therewith to enclose a housing compartment () of said electronic board () and some electronic power devices () are mounted onto the board () facing the bottom wall () of the cup-like lid (); moreover, at least one portion () of said bottom wall () is lowered towards the electronic board () and externally provided with some cooling fins () extended in parallel to the axis (X-X) of the motor to constitute the heat sink (); a layer () of a good heat conductive material being provided in contact between the electronic power devices () and the lowered surface (). 1. A fluid circulator comprising:a pump body comprising an impeller for the movement of said fluid;a motor body comprising an electric motor for putting said impeller into rotation around a rotation axis;an end portion of the circulator associated with said motor body for the containment of at least one electronic hoard for the control of said circulator;said end portion being a cup-shaped lid adapted to be fitted on the motor body in substantial continuity therewith to enclose a housing vane or compartment for said electronic board;electronic power devices mounted onto said board facing the bottom wall of said cup-like lid;at least one portion of said bottom wall being lowered towards said electronic board and externally provided with some cooling flaps or fins extending parallel to said axis to form a heat sink or dissipator;a layer of a good heat conductive material being provided in contact ...

Pump for a water-carrying household appliance and water-carrying household appliance having such a pump

An impeller pump for a dishwasher has a pump housing comprising a pump upper portion, pump lower portion and pump outer wall in which a pump chamber is arranged. It has a pump inlet into the pump housing and a pump outlet out of the pump housing and a heating device, which forms the pump outer wall, and a pump drive having a drive rotor, a drive stator having a stator winding and a bearing shaft. The bearing shaft is fixedly arranged on the pump housing and the drive rotor is fixedly connected to the drive rotor and they are rotatably arranged on the bearing shaft. The stator winding is arranged on a region of the pump lower portion which adjoins the pump chamber at the other side thereof in an outward radial direction so that between the pump chamber and stator winding only one wall of the pump lower portion extends so that the stator winding is surrounded by the pump chamber in an annular manner. It can thus be effectively cooled by water in the pump chamber.

CANNED MOTOR DEVICE

A canned motor device includes a casing, a rear cover and a leak detector. The rear cover has a main body portion having a cover end wall, and an extended disk portion cooperating with the main body portion to define an accommodating space. The casing and the rear cover cooperatively define an annular groove, a liquid-receiving space and a plurality of guiding grooves therebetween. The leak detector is disposed on one side of the cover end wall opposite to the liquid-receiving space for detecting a change in electrostatic capacity between the leak detector and the liquid-receiving space. The annular groove communicates with the liquid-receiving space, the accommodating space and each of the guiding grooves. 1. A canned motor device comprising:a tubular base extending along and surrounding an axis to define a mounting space therein; [ a casing body, and', 'a flange portion connected to one end of said casing body and fixedly mounted to said tubular base,, 'a casing that has'}, 'a stator that is sleeved on said casing,', 'a rotor that is mounted in said casing body, and', 'an impeller that is driven by said rotor;, 'a motor unit mounted in said mounting space and including'} a main body portion that is disposed between said casing body and said stator and that has two opposite ends in a direction of the axis, and', a cover end wall that is located at the other one of said opposite ends, and', 'a cover surrounding wall that surrounds the axis and that extends from a periphery of said cover end wall to said extended disk portion, said cover end wall and said casing cooperatively defining an annular groove that surrounds the axis, and a liquid-receiving space therebetween, said rear cover and said casing cooperatively defining a plurality of guiding grooves therebetween that are disposed about the axis and that are spaced apart from each other, each of said guiding grooves extending from said cover surrounding wall to said cover end wall, said annular groove and each of ...

一种微型水力悬浮机械泵

本发明属于机械泵领域，并公开了一种微型水力悬浮机械泵，包括蜗壳、上端盖、叶轮、无刷电机、防水套筒和水润滑螺旋槽推力轴承，蜗壳上设置有进水通道和出水通道，上端盖上设置有中间进水孔；所述无刷电机包括电机外壳、线圈、磁钢转子、转子套筒和转子转轴；所述磁钢转子的上方和下方分别设置一组所述水润滑螺旋槽推力轴承。本微型水力悬浮机械泵工作时，静环和动环之间能形成液膜来使磁钢转子悬浮，而转子套筒的外壁和防水套筒的内壁之间也能形成液膜，可以实现磁钢转子的无接触悬浮。由于磁钢转子的无接触悬浮，可以避免采用接触式轴承带来的磨损，提高微型水力悬浮机械泵的寿命。

离心泵

一种离心泵，包括转子组件和泵轴，转子组件包括叶轮和轴套，转子组件为以轴套为注塑嵌件经过注塑成形的包括叶轮的注塑体，转子组件通过轴套可转动的支撑于泵轴外周面，轴套为注塑成形或锻压成形加工而成，轴套为中空结构，轴套包括轴套本体、中心孔和外周面，泵轴贯穿所述中心孔设置，外周面与叶轮注塑固定；轴套还包括叶轮限制部，叶轮限制部设置于外周面，叶轮限制部用于限制轴套相对于包括叶轮的注塑体的旋转运动以及轴向运动。

一种超薄离心式微型泵

本发明属于机械泵领域，并公开了一种超薄离心式微型泵。所述微型泵包括叶轮、蜗壳以及与所述蜗壳配合的底座，其中，所述叶轮包括轮毂以及沿所述轮毂周向布置的叶片；所述蜗壳包括蜗壳本体以及设于所述蜗壳本体上的工作腔，所述工作腔用于容纳所述叶片；所述底座包括底座本体、设于所述底座本体上的转子槽、轴承孔、定子槽、进口流道以及出口流道。本发明通过在底座上设置与泵工作腔吸入口连通的进口流道和出口流道，使工作流体从叶片根部垂直进入泵工作腔，进而保证在低能耗的基础上进一步提升了微型泵的工作效率，同时，呈水平排列设计方式使得各部件在厚度方向的相互影响较小，微型泵的整体厚度减小，适应性强，能耗低。

Fluid feeder and tire vulcanizer

一种输送气液混合介质的侧流屏蔽泵

本发明公开了一种输送气液混合介质的侧流屏蔽泵，涉及屏蔽泵技术领域，包括泵部分和电机，泵部分和电机同用一根中心轴，泵腔与电机腔连通，所述泵部分设有吸入段、首级叶轮、次级叶轮、次级导叶和排出段，吸入段和排出段分别位于泵部分的首末两端，次级叶轮和次级导叶固定安装在中心轴上；本发明屏蔽泵含有既能输送液体又能输送气体的叶轮组，实现气液混合输送，同时利用气体与液体的压力流动关系使液体流过电机充当循环液来冷却电机和润滑轴承。

액체를 펌핑하기 위한 펌프의 냉각 장치

본 발명은 액체를 펌핑하기 위한 펌프에 관한 것으로, 본 펌프는 구동부(3) 및 이 구동부(3)에 연결되어 있는 히트 싱크(23)를 포함하고, 이 히트 싱크는 펌프의 작동 중에 구동부에서 발생된 열을 제거하도록 되어 있고, 구동부는, 반경 방향으로 모터 케이싱(22)에 의해 한정되어 있고, 고정자(16)를 갖는 전기 모터(17)를 수용하는 모터 격실(10); 적어도 부분적으로 펌프 최상측 케이싱(14)에 의해 한정되어 있고 전력 공급 요소(15)를 수용하는 커플링 격실(11); 및 모터 격실(10)과 커플링 격실(11) 사이에 배치되는 상측 분할부(20)를 포함한다. 본 펌프의 특징으로서, 모터 케이싱(22)은, 상측 분할부(20)와 히트 싱크(23)에 연결되어 이들 사이에서 축방향으로 연장되어 있는 외부 재킷(24); 고정자(16)와 히트 싱크(23) 사이에 연장되어 있는 내부 고정자 하우징(25); 및 반경 방향으로 외부 재킷(24)과 내부 고정자 하우징(25)을 분리하는 가스 충전 틈(26)을 포함한다.

一种一体化轴向悬浮永磁同步屏蔽泵

本发明公开了一种一体化轴向悬浮永磁同步屏蔽泵，包括泵体与永磁屏蔽电机，永磁屏蔽电机设有绕组定子、泵轴以及固定在泵轴上的永磁转子，泵轴的头部与泵体内的叶轮连接，泵轴通过永磁屏蔽电机端部的轴向悬浮轴承装置支撑；轴向悬浮轴承装置包括轴承座和轴套座，轴承座与永磁屏蔽电机固定，包括静磁圈与轴承，轴套座与泵轴固定，包括动磁圈与轴套，轴套位于泵轴与轴承之间；静磁圈与动磁圈均由若干个环形磁圈轴向组合而成，静磁圈的内圈与动磁圈的外圈的磁极极性均沿轴向交替变换；静磁圈的内圈与动磁圈的外圈正对处的磁极极性相反。利用本发明，能够降低永磁电机的涡流损耗，提升效率，并利用永磁体的磁力完全平衡轴向力。

一种输送气液混合介质的侧流屏蔽泵

本发明公开了一种输送气液混合介质的侧流屏蔽泵，涉及屏蔽泵技术领域，包括包括泵部分和电机，泵部分和电机同用一根中心轴，泵腔与电机腔连通，所述泵部分设有吸入段、首级叶轮、次级叶轮、次级导叶和排出段，吸入段和排出段分别位于泵部分的首末两端，次级叶轮和次级导叶固定安装在中心轴上；本发明屏蔽泵含有既能输送液体又能输送气体的叶轮组，实现气液混合输送，同时利用气体与液体的压力流动关系使液体流过电机充当循环液来冷却电机和润滑轴承。

Axial gap type rotating electrical machine

モータを構成するために必要な体格内で、アキシャルギャップ型回転電機の放熱性を大幅に向上する。軸方向に、固定子と回転子を有するアキシャルギャップ型回転電機において、前記固定子は、複数の固定子コアが周方向に配置され、該固定子コアにコイルが巻線されたものであり、金属製の中空管の内部に冷媒を封入したヒートパイプを、前記固定子の径方向外径部にできる隣り合うコイルとハウジングとの間の隙間に、前記コイルとの間に必要な絶縁距離を有して配置する。前記ヒートパイプは、回転軸方向であって反出力側方向に延伸され、反出力側のエンドブラケットの外で放熱フィンと接触している。   Within the physique required to configure the motor, the heat dissipation of the axial gap type rotating electrical machine is greatly improved. In the axial gap type rotating electrical machine having a stator and a rotor in the axial direction, the stator is a plurality of stator cores arranged in the circumferential direction, and a coil is wound around the stator core, Insulation distance required between the coil and the heat pipe in which the refrigerant is enclosed in the hollow metal tube, in the gap between the adjacent coil and the housing formed in the radially outer diameter portion of the stator. And arrange. The heat pipe extends in the direction of the rotation axis and in the direction opposite to the output side, and is in contact with the radiation fin outside the end bracket on the opposite output side.

Pump motor with isolation tank

本发明涉及一种具有隔离罐的泵马达。泵马达(1)具有马达壳体(10)、泵头(11)和隔离罐(3)，其中，泵头(11)和隔离罐(3)限界出湿室(26)并且隔离罐(3)和马达壳体(10)限界出干室(25)，永磁体转子(2)以能绕轴心(49)转动的方式支承在湿室(26)中，绕线式定子(4)和电路板(20)布置在干室(25)中并且电路板(20)与隔离罐底部(17)相对置。本发明的任务是，在这种泵马达中以经济的方式提供具有提高的从电路板(20)到要输送的介质中的排热功率的可靠的热输出。该任务通过隔离罐底部(17)在与电路板(20)相对置的侧上具有凹部(18)并且在相背置的侧上具有凸起(19)来解决。