ВЕНТИЛЛЯЦИОННЫЙ БЛОК

Изобретение относится к вентиляционному блоку. Вентиляционный блок, содержащий центробежный ротор (2), диффузор (4), связанный с центробежным ротором (2) и содержащий первый и второй выходы (6, 7), выходы расположены на противоположных сторонах центробежного ротора (2) и определяют продувной канал (5), центробежный ротор (2) вставлен в продувной канал (5), центробежный ротор (2), первый выход (6) и второй выход (7) выровнены по отношению друг к другу в соответствии с главной осью (X), перпендикулярной оси (R) вращения. Диффузор (4) содержит направляющие средства (12, 14) для направления воздушного потока (F) в продувном канале (5), каждое первое и второе средства (12, 14) отклонения потока имеет первую поверхность (12а, 14а), которая изогнута так, что ее вогнутый участок обращен по направлению к ротору (2). Первая поверхность (12а, 14а) первого и второго средств (12, 14) отклонения потока образована частью цилиндрической поверхности, имеющей главную ось, которая совпадает с осью (R) вращения ...

ВСАСЫВАЮЩИЙ АППАРАТ СО ЗВУКООТРАЖАЮЩИМ УСТРОЙСТВОМ

В заявке описан всасывающий аппарат, содержащий воздуходувное устройство (32) для создания потока всасываемого воздуха и воздухонаправляющее устройство (38), имеющее по меньшей мере один поворачивающий поток элемент (46; 90) с входной трубой (52; 92) и выходной трубой (54; 94), причем выходная труба (54; 94) ориентирована поперек входной трубы (52; 92), по меньшей мере один поворачивающий поток элемент (46; 90) является частью искривленного канала (40), в который вводится отходящий воздух из воздуходувного устройства (32) и который окружает вентилятор (34) воздуходувного устройства (32). В области (64) перехода между входной трубой (52; 92) и выходной трубой (54; 94) расположено звукоотражающее устройство (74), на котором происходит отражение звука и/или поглощение звука. 26 з.п. ф-лы, 7 ил.

БЕСШОВНЫЙ ГОРШКОВЫЙ СПИРАЛЬНЫЙ КОРПУС

Изобретение касается способа изготовления горшка (2) для горшкового спирального корпуса (1) для турбомашины (10), в частности для компрессора, а также горшкового спирального корпуса (1) для турбомашины. В соответствии со способом изготовления горшка (2) для горшкового спирального корпуса (1) предусмотрено, что горшок (2) изготавливается из заготовки (3) технологическим способом со снятием стружки. Горшковый спиральный корпус (1) имеет горшок (2), изготовленный этим способом изготовления горшка (2) для горшкового спирального корпуса (1). Изобретение направлено на упрощение процесса изготовления и монтажа горшкового спирального корпуса. 3 н. и 5 з.п. ф-лы, 11 ил.

ВЕНТИЛЯТОР И НАПРАВЛЯЮЩЕЕ УСТРОЙСТВО ДЛЯ ВЕНТИЛЯТОРА

Вентилятор, в частности осевой, радиальный или диагональный вентилятор, имеющий рабочее колесо вентилятора и включенное в корпусе и/или в проточном канале ниже по потоку выходное направляющее устройство, причем это выходное направляющее устройство включает в себя выходные направляющие лопатки, которые, если смотреть в направлении размаха, соответственно, радиальном направлении, проходят только по части корпуса и/или проточного канала. Выходное направляющее устройство имеет действующую в качестве диффузора структуру, имеющую, если смотреть в проточном направлении, постепенно расширяющееся проточное поперечное сечение, и причем ниже по потоку от рабочего колеса выполнены две проточные области, из которых более близкая к оси, внутренняя проточная область, если смотреть в направлении размаха, ограничена ступичным кольцом направляющего устройства и наружным кольцом направляющего устройства, и при этом более далекая от оси, наружная проточная область, если смотреть в направлении размаха, ограничена ...

Одноступенчатый центробежный насосный агрегат

Изобретение относится к области машиностроения, а именно к центробежным насосным установкам, предназначенным для перекачивания жидкостей. Одноступенчатый центробежный насосный агрегат включает центробежный одноступенчатый насос двухстороннего входа, приводной электродвигатель, муфту, соединяющую их валы, опорную раму для крепления насоса и электродвигателя, корпус, состоящий из основания и крышки, входной и выходной патрубки, ротор с закрепленным на нем рабочим колесом, установленный в опорных подшипниках, и спиральный отвод. Спиральный отвод выполнен в виде отдельной самостоятельной детали, а части его внешней поверхности, предусмотренные для размещения в выполненных для этого ложементах крышки и корпуса, соответствуют форме поверхностей этих ложементов. Рабочее колесо и спиральный отвод выполнены попарно сменными, причем параметры рабочего колеса и спирального отвода в каждой паре рассчитываются на максимальное значение эффективности при обеспечении требуемой подачи и напора. Изобретение ...

ВЫХОДНОЕ УСТРОЙСТВО ЦЕНТРОБЕЖНОГО КОМПРЕССОРА

Полезная модель относится к области энергетического машиностроения, в частности к энергетическим турбомашинам, и может быть использована в выходных устройствах центробежных компрессоров, нагнетателей и насосов. Технический результат заключается в снижении потерь напора выходного устройства концевой ступени центробежного компрессора при увеличении площади его сечения за счет увеличения ширины проточного канала в осевом направлении. Выходное устройство центробежного компрессора содержит наружную стенку корпуса концевой ступени компрессора, впускное и выпускное отверстия для текучей среды и проточный канал между ними, образованный наружной стенкой корпуса 1 и улиткообразной внутренней стенкой 6 и плавно расширяющийся в осевом направлении до выпускного отверстия, соответствующему входу в выходной патрубок 4. В проточном канале 5 установлена разделительная стенка 7, разделяющая проточный канал на два канала с одинаковой шириной на выходе из выпускного отверстия, при этом разделительная стенка ...

Способ профилирования элементов проточной части лопастной машины

Способ профилирования элементов проточной части лопастной машины относится к области машиностроения и может быть использован в системах автоматизированного проектирования лопастных машин для перекачивания жидкости или газа при частоте вращения ротора n лопастной машины Способ заключается в определении формы элементов проточной части лопастной машины, внешние контуры которых представляют в виде кривых, при котором определяют функциональную зависимость между геометрическими и кинематическими параметрами, кривые внешних контуров элементов проточной части лопастной машины представляют огибающими семейства окружностей, центры которых располагаются на средней линии тока. Искомую форму огибающих определяют на основании значений обобщенного конструктивного параметра, итерационно меняя геометрию средней линии тока. Задают уравнение обобщенного конструктивного параметра. Рассчитывают основные геометрические параметры элементов проточной части и определяют функциональную зависимость площади проходного ...

ВСАСЫВАЮЩЕЕ СОЕДИНЕНИЕ, ПРЕДНАЗНАЧЕННОЕ ДЛЯ СОЕДИНЕНИЯ ВСАСЫВАЮЩЕЙ ТРУБЫ С ЦЕНТРОБЕЖНЫМ НАСОСОМ, УСТАНОВЛЕННЫМ СУХИМ

... 1. Всасывающее соединение, предназначенное для соединения всасывающей трубы с центробежным насосом, установленным Сухим, содержащее первый фланец (10), который включает в себя центрально расположенное сквозное отверстие (11) и который выполнен с возможностью соединения с выходом всасывающей трубы, и второй фланец (12), который включает в себя центрально расположенное сквозное отверстие (13) и который выполнен с возможностью соединения с входом центробежного насоса, отличающееся тем, что всасывающее соединение содержит первую муфту (15) трубы, выполненную с возможностью перемещения в осевом направлении, видимом в направлении потока, между рабочим положением, в котором упомянутая первая муфта (15) трубы соединяет с возможностью разъединения первый фланец (10) и второй фланец (12), и, таким образом, приводит сквозное отверстие (11) первого фланца (10) в связь по текучей среде со сквозным отверстием (13) второго фланца (12), и положением обслуживания, в котором первая муфта (15) трубы расположена ...

КОРПУС ТУРБОМАШИНЫ С УСИЛЕННЫМ УПЛОТНЕНИЕМ

... 1. Корпус турбомашины, содержащий тело (12), усиленное снаружи осевыми ребрами (14), равномерно разнесенными по окружности и проходящими в виде полуарок между двумя кольцевыми частями разных диаметров, причем кольцевая часть большего диаметра снабжена кольцевым соединительным фланцем (19), отличающийся тем, что осевые ребра соединены своими концами, расположенными на стороне кольцевой части большего диаметра, с кольцевым ребром (25), причем указанное кольцевое ребро соединено с соединительным фланцем (19) частью (27) кольцевой стенки, выполненной более тонкой, чем кольцевое ребро (25) и соединительный фланец (19).2. Корпус по п.1, отличающийся тем, что кольцевое ребро (25) выполнено на наружном радиальном продолжении внутренней перегородки (26).3. Корпус по п.1, отличающийся тем, что указанная более тонкая часть (27) кольцевой стенки расположена радиально снаружи от выхода диффузора (29).4. Корпус по любому из предыдущих пунктов, отличающийся тем, что осевые ребра (14) проходят с охватом ...

GEBLAESE

DRUCKGUSSGEHÄUSE FÜR KREISELKOMPRESSOREN MIT ECHTER SPIRALFORM

Improvements in or relating to pump, compressor, turbine or the like assemblies

... 956,732. Centrifugal pumps; turbine casings. DE LAVAL STEAM TURBINE CO. April 17, 1962 [Aug. 11, 1961], No. 14920/62. Headings F1C and F1T. An assembly comprises a series of axially stacked sections constituting the stages of a pump, compressor, turbine or the like and a number of flat double-ended tie bars which extend parallel to the longitudinal axis of the assembly with their flat faces substantially tangential to an arc about the axis, the heads of the tie bars, being engaged respectively behind oppositely facing faces of the respective first and last section of the series for maintaining the assembled sections in axially-compressed stacked relationship. An outer casing 4, Fig. 1, of a pump 2 contains an inner assembly which comprises nested concentric sections 14 positioned between end sections 16, 18, and diffusers 22 bolted to the sections. The sections 14, 16, 18 are clamped together by flat oblong steel tie bars 24 provided with heads 26 having shoulders 28. As shown in Fig. 2 ...

Pump casing

Combined heater pump apparatus

A fan

Hemispherical entrainment-type high-flow self-priming centrifugal pump

A fan assembly

GEHÄUSE FÜR EINE PUMPE, INSBESONDERE KREISELPUMPE

TIFF 00000006.TIF 297 210 TIFF 00000007.TIF 297 210 ...

CENTRIFUGAL PUMP HOUSING

CENTRIFUGAL PUMP HOUSING FROM METALLBLECH.

CONNECTING PIECE FOR LINES IN A PUMP.

Housing for a centrifugal fan, pump or turbine

Suction connection for connecting a suction pipe to a dry installed centrifugal pump

The invention relates to a suction connection, comprising a first flange (10) that includes a centrally located through hole (11) and is arranged to be connected to an outlet of a suction pipe and a second flange (12) that includes a centrally located through hole (13) and that is arranged to be connected to an inlet of a dry installed centrifugal pump. According to the invention the suction connection comprises a first pipe socket (15), which is displacable in the axial direction between an operative position in which said first pipe socket (15) disengageably connects the first flange (10) and the second flange (12) and thereby puts the through hole (11) of the first flange (10) in fluid communication with the through hole (13) of the second flange (12), and a service position in which said first pipe socket (15) is located at a distance from the second flange (12) and thereby admit access to the through hole (13) of the second flange (12).

A fan

A fan includes an outer casing having an air inlet and an air outlet, and an impeller housing located within the casing. An impeller is provided within the impeller housing for generating an air flow along a path extending from the air inlet to the air outlet through the impeller housing. A motor for driving the impeller is located within a motor housing connected to the impeller housing. A foam annular seal is located between the impeller housing and a seat to inhibit the leakage of air between the impeller housing and the casing. A plurality of resilient supports is provided between the impeller housing and the seat to reduce the load on the annular seal.

FLOW OUTPUT NOZZLE FOR CENTRIFUGAL PUMP

A flow outlet for a pump includes a pocket section which defines a pocket section diameter. A throat section downstream of the pocket section, the throat section defines a throat section diameter less than the pocket section diameter.

MULTI-STAGE CENTRIFUGAL PUMP WITH MEANS FOR PULSE CANCELLATION

AIR BLOWER

An air blower comprises a motor (1), a volute casing (2), a cover plate (3) and a wind wheel (4). The volute casing (2) and the cover plate (3) are mounted together to form a cavity (21). The wind wheel (4) is arranged inside the cavity (21). The motor (1) is mounted on the volute casing (2), and the shaft extension end (11) of the motor (1) extends into the cavity (21) and is connected to the wind wheel (4). An air inlet (31) is formed in the center of the cover plate (3). An air outlet (22) is formed in the side surface of the volute casing (2). The air inlet (31) and the air outlet (22) are both communicated with the cavity (21). A plurality of annular protrusions (32) is arranged on the inner side wall surface of the cover plate (3) and is centered around the air inlet (31). Therefore, air leakage between the wind wheel and the cover plate is effectively reduced, and the blowing efficiency of the air blower is improved.

COMPLIANT ABRASION RESISTANT BEARINGS FOR A SUBMERSIBLE WELL PUMP

An electrical submersible pump assembly includes a centrifugal pump having impellers and diffusers. A thrust runner is coupled to a motor shaft for rotation along with the impellers. The runner receives thrust from at least one of the impellers and transfers the thrust to a bushing non rotatably mounted in one of the diffusers. The bushing has a thrust transferring end adjacent a thrust receiving shoulder in the diffuser. The bushing is axially movable in the receptacle. An annular spring located between the thrust receiving shoulder in the receptacle and the thrust transferring end of the bushing urges the bushing away from the thrust receiving shoulder.

Turbo-machine centrifuge à étages multiples

Turbo-machine

Kreiselpumpengehäuse

Maschine zum Fördern gasförmiger oder flüssiger Medien

Centrifugal pump having a double-entry, bispiral casing and an axially removable inner block

Turbomachine.

Strömungsmaschine, mit einem Rotor, der ein radial durchströmtes Laufrad (10) aufweist, und mit einem Stator, der ein Gehäuse (11) und ein am Gehäuse (11) montiertes Einsatzstück (12) aufweist, wobei das Einsatzstück (12) einen Strömungskanal für ein Arbeitsfluid, nämlich eine sich in Axialrichtung erstreckende erste Strömungspassage (17) und eine sich gegenüber der ersten Strömungspassage (17) bogenförmig nach radial aussen erstreckende zweite Strömungspassage (18) des Strömungskanals, zumindest abschnittsweise begrenzt, und wobei das Einsatzstück (12) im Bereich eines Einsatzstückflanschs (15) an einem Gehäuseflansch (16) des Gehäuses (11) über Verbindungselemente (14) derart befestigt ist, dass das Laufrad (10) bei montiertem Gehäuse (11) demontierbar und montierbar ist, wobei am Gehäuse (11) ein Prall- und Verformungskörper (20) montiert ist, der im Falle des Berstens des Laufrads (10) eine Bewegung des Einsatzstücks (12) formschlüssig unterbindet.

Turbomachine.

Strömungsmaschine, mit einem Rotor, der ein radial durchströmtes Laufrad (10) aufweist, und mit einem Stator, der ein Gehäuse (11) und ein am Gehäuse (11) montiertes Einsatzstück (12) aufweist, wobei das Einsatzstück (12) einen Strömungskanal für ein Arbeitsfluid, nämlich eine sich in Axialrichtung erstreckende erste Strömungspassage (17) und eine sich gegenüber der ersten Strömungspassage (17) bogenförmig nach radial außen erstreckende zweite Strömungspassage (18) des Strömungskanals, zumindest abschnittsweise begrenzt, und wobei das Einsatzstück (12) im Bereich eines Einsatzstückflanschs (15) an einem Gehäuseflansch (16) des Gehäuses (11) über Verbindungselemente (14) derart befestigt ist, dass das Laufrad (10) bei montiertem Gehäuse (11) demontierbar und montierbar ist, wobei am Gehäuse (11) ein Prall- und Verformungskörper (20) montiert ist, der im Falle des Berstens des Laufrads (10) eine Bewegung des Einsatzstücks (12) formschlüssig unterbindet.

Insert for a turbomachine and turbomachine.

Einsatzstück für eine Strömungsmaschine und damit ausgerüstete Strömungsmaschine (1), welche ein radial durchströmtes Laufrad (50) aufweist, wobei das Einsatzstück (30) einen hohlzylindrischen Grundkörper (31) aufweist, der ein erstes Axialende (32), das vorgesehen ist, eine axial verlaufende erste Strömungspassage (S1) zu bilden, und ein zweites Axialende (33) hat, das bogenförmig aufgeweitet ist und das vorgesehen ist, mit einer Nabe (51) des Laufrades eine nach radial auswärts gekrümmte zweite Strömungspassage (S2) zu bilden, wobei am zweiten Axialende aussen ein ringförmiger Steg (36) vorgesehen ist, der sich axial in Richtung zum ersten Axialende hin erstreckt und der umfänglich von Aussparungen unterbrochen ist, wobei an einem Aussenumfang des Grundkörpers (31) sich radial auswärts erstreckende Befestigungsmittel vorgesehen sind, über die das Einsatzstück an einem Gehäuse (10) der Strömungsmaschine befestigbar ist, wobei die Befestigungsmittel eine Mehrzahl von umfänglich jeweils ...

Gusset for a fluid-flow machine and thereby equipped fluid-flow machine.

Einsatzstück für eine Strömungsmaschine und damit ausgerüstete Strömungsmaschine (1), welche ein radial durchströmtes Laufrad (50) aufweist, wobei das Einsatzstück (30) einen Grundkörper (31) aufweist, der ein erstes Axialende (32), das vorgesehen ist, eine axial verlaufende erste Strömungspassage (S1) zu bilden, und ein zweites Axialende (33) hat, das bogenförmig aufgeweitet ist und das vorgesehen ist, mit einer Nabe (51) des Laufrades eine nach radial auswärts gekrümmte zweite Strömungspassage (S2) zu bilden, wobei am zweiten Axialende aussen ein ringförmiger Steg (36) vorgesehen ist, der sich axial in Richtung zum ersten Axialende hin erstreckt und der umfänglich von Aussparungen unterbrochen ist, wobei an einem Aussenumfang des Grundkörpers (31) sich radial auswärts erstreckende Befestigungsmittel vorgesehen sind, über die das Einsatzstück an einem Gehäuse (10) der Strömungsmaschine befestigbar ist, wobei die Befestigungsmittel eine Mehrzahl von umfänglich jeweils mit Abstand voneinander ...

Fluid-flow machine with radially flowed through compressor wheel and with retaining mechanism.

Die Erfindung betrifft eine Strömungsmaschine mit radial durchströmtem Verdichterrad. Das Verdichtergehäuse ist aus einem äusseren Spiralgehäuse (10) und einem inneren Gehäuseeinsatzstück (12) gebildet. Durch Alterung kann es zum Bruch des Verdichterrades kommen. Die Bruchstücke sollen im Idealfall von dem Gehäuseeinsatzstück (12) aufgefangen werden, um die Containmentsicherheit der Strömungsmaschine zu gewährleisten. Wegen der durch die auftreffenden Bruchstücke des Verdichterrades schlagartig freiwerdenden Kräfte, schlägt die vorliegende Erfindung einen speziellen Konstruktionsaufbau insbesondere des als Ersatzteil vorgesehenen inneren Gehäuseeinsatzstücks (12) vor, so dass die Bruchstücke sicher und kostengünstig in der Strömungsmaschine gehalten werden können, d.h. die Containmentsicherheit der Strömungsmaschine gewahrt ist.

Turbocharger and support structure for turbocharger.

Abgasturbolader, mit einer Turbine zur Entspannung von Abgas und zur Gewinnung von Energie, und mit einem Verdichter zur Verdichtung von Ladeluft mit Hilfe der in der Turbine gewonnen Energie, wobei die Turbine ein mehrteiliges Turbinengehäuse (10) mit einem Zuströmgehäuse und einem Abströmgehäuse (9) und einen in dem Turbinengehäuse positionierten Turbinenrotor aufweist, und wobei der Verdichter ein mehrteiliges Verdichtergehäuse (2) mit einem Lagergehäuse und einem Spiralgehäuse (4) und einen in dem Verdichtergehäuse positionierten und mit dem Turbinenrotor gekoppelten Verdichterrotor aufweist, mit einer das Turbinengehäuse (10) und das Verdichtergehäuse (2) über Druckkräfte verspannende Stützstruktur (12), die einen außen am Verdichtergehäuse (2) angreifenden ersten Ringflansch (13) und einen außen am Turbinengehäuse (10) angreifenden zweiten Ringflansch (14) aufweist, die durch Zugdruckanker (15) unter Verspannen des Turbinengehäuses (10) und des Verdichtergehäuses (2) miteinander verbunden ...

Intake system for a turbocharger and turbocharger.

Ansaugsystem (10) für einen Abgasturbolader, mit einem Ansaugschalldämpfer (12) zum Ansaugen von zu verdichtender Ladeluft und mit einem Ansaugrohr (13) zum Leiten der zu verdichtenden Ladeluft vom Ansaugschalldämpfer (12) in Richtung auf einen Verdichter (11) des Abgasturboladers, wobei das Ansaugsystem (10) als nachrüstbare Einheit ausgebildet ist, und wobei der Ansaugschalldämpfer (12) und/oder das Ansaugrohr (13) Mittel umfassen, die in einem Schadensfall des Verdichters kinetische Energie von Bruchstücken des Verdichters abbauen und so einen Containmentschutz ausbilden.

Turbocharger and a support structure for a turbocharger.

Abgasturbolader, mit einer Turbine zur Entspannung von Abgas und zur Gewinnung von Energie, und mit einem Verdichter zur Verdichtung von Ladeluft mit Hilfe der in der Turbine gewonnenen Energie, wobei die Turbine ein mehrteiliges Turbinengehäuse (10) mit einem Zuströmgehäuse und einem Abströmgehäuse (9) und einen in dem Turbinengehäuse positionierten Turbinenrotor aufweist, und wobei der Verdichter ein mehrteiliges Verdichtergehäuse (2) mit einem Lagergehäuse und einem Spiralgehäuse (4) und einen in dem Verdichtergehäuse positionierten und mit dem Turbinenrotor gekoppelten Verdichterrotor aufweist, mit einer das Turbinengehäuse (10) und das Verdichtergehäuse (2) über Druckkräfte verspannende Stützstruktur (12), die einen aussen am Verdichtergehäuse (2) angreifenden ersten Ringflansch (13) und einen aussen am Turbinengehäuse (10) angreifenden zweiten Ringflansch (14) aufweist, die durch Zugdruckanker (15) unter Verspannen des Turbinengehäuses (10) und des Verdichtergehäuses (2) miteinander ...

Intake system for retrofitting an existing turbocharger and turbocharger.

Ansaugsystem (10) zur Nachrüstung eines bestehenden Abgasturboladers, mit einem Ansaugschalldämpfer (12) zum Ansaugen von zu verdichtender Ladeluft und mit einem Ansaugrohr (13) zum Leiten der zu verdichtenden Ladeluft vom Ansaugschalldämpfer (12) in Richtung auf einen Verdichter (11) des Abgasturboladers, wobei das Ansaugsystem (10) als nachrüstbare Einheit ausgebildet ist, und wobei der Ansaugschalldämpfer (12) und/oder das Ansaugrohr (13) Mittel umfassen, die in einem Schadensfall des Verdichters nämlich des Verdichterrotors kinetische Energie von Bruchstücken des Verdichterrotors abbauen und so einen Containmentschutz ausbilden.

Turbocharger.

Turbolader, mit einer Turbine, mit einem Verdichter, wobei ein Turbinengehäuse und ein Verdichtergehäuse jeweils mit einem zwischen denselben angeordneten Lagergehäuse (9) verbunden sind, wobei ein Zuströmgehäuse (11) des Turbinengehäuses und das Lagergehäuse (9) über eine Befestigungseinrichtung (17) derart verbunden sind, dass die Befestigungseinrichtung (17) an einem Flansch (18) des Zuströmgehäuses (11) mit einem ersten Abschnitt (19) montiert ist und mit einem zweiten Abschnitt (21) einen Flansch (26) des Lagergehäuses (9) zumindest abschnittsweise überdeckt, wobei zwischen dem Flansch (18) des Zuströmgehäuses (11) und dem Flansch (26) des Lagergehäuses (9) Flansche (24, 25) eines Düsenrings (15) und eines Dichtdeckels (16) derart geklemmt sind, dass zwischen dem Flansch (18) des Zuströmgehäuses (11) und dem Flansch (24) des Düsenrings (15) ein erster Kontaktklemmbereich (27) zwischen dem Flansch (24) des Düsenrings (15) und dem Flansch (25) des Dichtdeckels (16) ein zweiter Kontaktklemmbereich ...

Centrifugal compressor.

Radialverdichter (10), insbesondere Radialverdichter eines Abgasturboladers, mit einem Laufrad (11); mit einem feststehenden Gehäuse (13); mit einem vom Gehäuse (13) definierten Hauptströmungskanal (14) zum Zuführen eines zu verdichtenden Mediums in Richtung auf das Laufrad (11); und mit einer radial ausserhalb des Hauptströmungskanals (14) angeordneten Sekundärströmungskammer (15), welche durch eine Konturwand (16) vom Hauptströmungskanal (14) abgegrenzt ist und welche mit dem Hauptströmungskanal über eine Sekundärströmungsöffnung (18) im Bereich des Laufrads (11) mit dem Hauptströmungskanal (14) verbunden ist. Im Meridianschnitt gesehen ist die Sekundärströmungsöffnung (18), über welche die Sekundärströmungskammer (15) im Bereich des Laufrads (11) mit dem Hauptströmungskanal (14) verbunden ist, gegenüber einer Radialrichtung schräggestellt oder geneigt.

TURBO COMPRESSOR

Conexion de succion para conectar un tubo de succion a una bomba centrifuga instalada en seco, que comprende una primera brida que incluye un agujero pasante, donde una conexion de succion comprende un primer manguito de tubo, el cual es desplazable en la direccion axial, visto en la direccion de flujo, entre una posicion operativa en la cual el primer manguito de tubo se conecta en forma desenganchable a la primera brida y la segunda brida.

Conexión de succión para conectar un tubo de succión a una bomba centrífuga instalada en seco, que comprende una primera brida que incluye un agujero pasante, donde una conexión de succión comprende un primer manguito de tubo, el cual es desplazable en la dirección axial, visto en la dirección de flujo, entre una posición operativa en la cual el primer manguito de tubo se conecta en forma desenganchable a la primera brida y la segunda brida.

Pump insert and assembly

A pump insert (128) has an inner surface which in use defines a portion of a volute (124) of a pump (110) wherein said pump insert (128) is adapted to be coupled with a pump casing (116) by an inter-engaging profiled coupling arrangement (166). In one disclosed embodiment the pump insert (128) is adapted to engage a pump casing closure plate (148) which is locatable about a pump shaft (112) and between the pump inert (148) and the pump casing (110).

Multistage centrifugal fluid machine

There is provided a multistage centrifugal fluid machine capable of improving efficiency of an operation for assembling an inner casing to a high pressure side head flange. The multistage centrifugal fluid machine 100 includes a rotor 3 provided with a plurality of impellers (41 to 81) in an axial direction, a cylindrical outer casing 2, and an inner bundle 1 that is fitted with the outer casing 2 to form a flow passage for the working fluid. The inner bundle 1 includes a high pressure side head flange 11, a low pressure side head flange 12, and an inner casing 5 disposed between the high pressure side head flange 11 and the low pressure side head flange 12. The high pressure side head flange 11 and the inner casing 5 are fastened with a first bolt 142 via an elastic body 144.

FAN CASE, MOTOR UNIT, AND MOVING BODY

A fan case includes a first member and a second member. The first member includes a first main body and at least one hook. The at least one hook is disposed at at least one location on the outer periphery of the first main body in plan view from a first direction. The second member includes a second main body and at least one claw. The at least one claw is disposed on the outer periphery of the second main body in plan view from the first direction, at a position corresponding to the at least one hook to allow the at least one hook to be hooked on the at least one claw. At least one of the at least one hook extends from an end of a first opening of the first main body toward the second member along the first direction.

PUMP AND TANK USING THE PUMP

PROBLEM TO BE SOLVED: To provide a pump miniaturized, reduced in weight, having excellent pumping performance and high reliability and reduced in noise, at a low cost, and to provide a tank suitable for supplying liquid fuel or the like using the pump. SOLUTION: A pump chamber 20 is formed on the inner peripheral side of a ring-shaped stator 10, and a rotor 23 with a magnetic substance 24 disposed along the inner periphery of the stator 10 is rotatably disposed in the pump chamber. An impeller is integrally formed at the rotor 23. The pump chamber 20 has an intake port 21 and a discharge port 22 for a fluid. A passage 31 is formed between an inner peripheral wall 45 of the pump chamber 20 and an outer peripheral part of the rotor 23 extending along the discharge port 22 from the intake port 21. A passage 31 extending along the intake port 21 from the discharge port 22 is closed, and the impeller is rotated together with the rotor 23 to discharge the fluid sucked from the intake port 21, ...

ЦЕНТРОБЕЖНЫЙ ВЕНТИЛЯТОР И НАГРЕВАТЕЛЬНОЕ УСТРОЙСТВО, СНАБЖЕННОЕ ТАКИМ ЦЕНТРОБЕЖНЫМ ВЕНТИЛЯТОРОМ

Изобретение относится к центробежному вентилятору, содержащему корпус вентилятора с радиальным выходным отверстием, которое выполнено в радиальной периферийной стенке корпуса вентилятора, ротор, с возможностью вращения расположенный в корпусе вентилятора и вблизи продольной оси вращения снабженный входным отверстием. Вблизи оси вращения ротора корпус вентилятора снабжен осевым входным отверстием и трубчатой частью, которая продолжается в корпусе вентилятора от радиального выходного отверстия, выполненного в радиальной периферийной стенке, и внутрь вдоль радиальной периферийной стенки. Изобретение дополнительно относится к нагревательному устройству, содержащему горелку и центробежный вентилятор, соответствующий изобретению. Изобретение направлено на снижение шума вентилятора, а также на снижение стоимости и трудозатрат при производстве такого вентилятора. 2 н. и 20 з.п. ф-лы, 9 ил.

Входной направляющий лопаточный аппарат

Предложены варианты выполнения устройства для передачи энергии между вращающимся элементом и текучей средой. В некоторых вариантах выполнения всасывающая камера устройства для передачи энергии между вращающимся элементом и текучей средой может содержать сквозное отверстие, проходящее через всасывающую камеру, и входные направляющие лопатки, расположенные вблизи периферической кромки сквозного отверстия и содержащие первую группу входных направляющих лопаток, имеющих изогнутый профиль, и вторую группу входных направляющих лопаток, проходящих радиально внутрь от входных направляющих лопаток первой группы, причем входные направляющие лопатки первой группы находятся в неподвижном положении относительно всасывающей камеры, а входные направляющие лопатки второй группы выполнены с возможностью перемещения относительно всасывающей камеры. 2 н. и 14 з.п. ф-лы, 7 ил.

ЦЕНТРОБЕЖНЫЙ КОМПРЕССОР С РЕЦИРКУЛЯЦИОННЫМ КАНАЛОМ

Пример центробежного компрессора содержит корпус, формирующий впускную камеру и содержащий первое и второе отверстия, определяющие рециркуляционный канал, который гидравлически связан со впускной камерой. Рабочее колесо расположено внутри корпуса и может вращаться вокруг продольной оси для всасывания жидкости во впускную камеру. Первое и второе отверстия находятся в разных осевых положениях вдоль продольной оси. Множество впускных направляющих лопаток выполнены с возможностью вращения и расположены во впускной камере. Центробежный компрессор содержит кольцо и контроллер, предназначенные для перемещения кольца вдоль продольной оси между первым положением и вторым положением при вращении впускных направляющих лопаток. Кольцо закрывает, по меньшей мере, одно из первого и второго отверстий, причем сильнее во втором положении, чем в первом положении. 2 н. и 21 з.п. ф-лы, 17 ил.

УЗЕЛ С ТОРЦЕВОЙ КРЫШКОЙ

Изобретение относится к узлу с торцевой крышкой (COV) корпуса (CAS) турбомашины (ТМ), в частности для турбомашины (ТМ) горшкообразной конструкции, причем узел содержит, по меньшей мере, крышку (COV) и дополнительный корпус (CAS2). Чтобы, несмотря на сложность узла, можно было легко проводить работы по обслуживанию и осмотру, предложено, что крышка (COV) снабжена первым сквозным отверстием (ОР1), причем на крышке (COV) размещен дополнительный корпус (CAS2), причем первое отверстие (ОР1) заканчивается внутри дополнительного корпуса (CAS2), причем дополнительный корпус (CAS2) имеет закрываемое второе отверстие (ОР2), причем дополнительный корпус (CAS2) образован стенками (W), причем на стенках (W) дополнительного корпуса (CAS2) предусмотрено, по меньшей мере, одно присоединение для трубы или ввод для вала. 3 з.п. ф-лы, 2 ил.

ВЕНТИЛЯТОР В СБОРЕ

Настоящее изобретение относится к вентилятору в сборе, более конкретно к увлажнительному устройству для создания потока влажного воздуха и потока воздуха для рассеивания влажного воздуха внутри помещения. Увлажнительное устройство содержит корпус, содержащий камеру; бак для воды, предназначенный для подачи воды в камеру; средства создания воздушного потока для создания воздушного потока над водой, находящейся в камере; средства увлажнения для увлажнения воздушного потока водой из камеры; картридж, съемным образом устанавливаемый в корпусе, причем картридж содержит лампу, излучающую ультрафиолетовое излучение, для облучения воды в камере, при этом камера содержит прозрачную для ультрафиолетовых лучей трубку, предназначенную для помещения в нее лампы; и выход для воздуха для выброса воздушного потока; при этом корпус содержит множество опор для поддержания между ними картриджа, причем каждая из опор содержит изогнутую дорожку для направления перемещения картриджа в направлении трубки, при ...

Выходное устройство центробежной турбомашины

Изобретение относится к энергетическим турбомашинам и может использоваться в центробежных компрессорах, нагнетателях, вентиляторах и насосах. Оно применимо к таким выходным устройствам, которые состоят из расположенных последовательно по ходу рабочей среды осесимметричного колена, кольцевой полости прямоугольного сечения и выходного патрубка. Изобретение позволяет уменьшить трудоемкость изготовления устройства без значительного увеличения потерь напора в нем за счет выполнения вогнутой поверхности колена, периферийной поверхности полости, а также торцевых поверхностей ее по пониженным требованиям к их шероховатости. 2 ил.

Входной сопловой аппарат турбомашины для асимметричного потока с лопатками различной формы

НАГНЕТАТЕЛЬНЫЙ УЗЕЛ (ВАРИАНТЫ), ТРАНСПОРТНОЕ СРЕДСТВО И СПОСОБ ИЗМЕНЕНИЯ СКОРОСТИ ВОЗДУШНОГО ПОТОКА В НАГНЕТАТЕЛЬНОМ УЗЛЕ

КОРПУС НАСОСА ДЛЯ ЦЕНТРОБЕЖНОГО НАСОСА И ЦЕНТРОБЕЖНЫЙ НАСОС

ВЕНТИЛЛЯЦИОННЫЙ БЛОК

... 1. Вентиляционный блок для создания воздушного потока (F), содержащий центробежный ротор (2), выполненный с возможностью вращения вокруг оси (R) вращения, диффузор (4), связанный с центробежным ротором (2) и содержащий первый и второй выходы (6, 7), при этом указанные выходы расположены на противоположных сторонах центробежного ротора (2) и определяют продувной канал (5) потока (F), причем центробежный ротор (2) вставлен в продувной канал (5), отличающийся тем, что центробежный ротор (2), первый выход (6) и второй выход (7) выровнены по отношению друг к другу в соответствии с главной осью (X), перпендикулярной оси (R) вращения.2. Вентиляционный блок по п. 1, отличающийся тем, что диффузор (4) содержит направляющие средства (12, 14) для направления воздушного потока (F) в продувном канале (5), при этом указанные направляющие средства функционируют между центробежным ротором (2) и первым выходом (6) и/или между центробежным ротором (2) и вторым выходом (7).3. Вентиляционный блок по п. 2, ...

БЕСШОВНЫЙ ГОРШКОВЫЙ СПИРАЛЬНЫЙ КОРПУС

... 1. Способ изготовления горшка (2) для горшкового спирального корпуса (1) для турбомашины (10) для компрессора (10),при этом горшок (2) изготавливается из заготовки технологическим способом со снятием стружки,отличающийся тем, что заготовка (3) в поперечном сечении имеет, по существу, каплеобразный наружный контур.2. Способ по п. 1,отличающийся тем, что технологический способ со снятием стружки представляет собой точение, фрезерование и/или сверление.3. Способ по п. 2,отличающийся тем, что, по существу, каплеобразная в поперечном сечении заготовка (3) изготовлена путем отковывания элемента на, по существу, цилиндрической основной части в ковочном штампе.4. Горшковый спиральный корпус (1) для редукторного турбокомпрессора (10), отличающийся горшком (2), изготовленным по меньшей мере по одному из предыдущих пп. способа.5. Горшковый спиральный корпус (1) по п. 4,отличающийся привернутым к горшку (2) трубопроводом (4) агрегата, в частности, привернутой к горшку (2) трубой (5) напорного патрубка ...

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.

Gebläselüfter, Batteriekühlvorrichtung und Klimaanlagenvorrichtung für ein Fahrzeug, welche selbigen aufweisen

Bei einem Gebläselüfter (1) ist ein Lüftergehäuse (20) ausgestaltet, um mit Bezug auf ein äußeres Gehäuse (10) derart verschoben bzw. verstellt zu werden, dass ein Auslassabschnitt (22) von dem Lüftergehäuse entweder zu einer ersten Öffnung (11) oder zu einer zweiten Öffnung (12) von dem äußeren Gehäuse justiert wird. Wenn der Auslassabschnitt an einer Position entsprechend zu einer von der ersten und der zweiten Öffnung angeordnet ist, unterteilt ein vergrößerter Wandabschnitt (24) des Lüftergehäuses einen von dem ersten und dem zweiten Durchlass (13, 14), der mit der anderen von der ersten und der zweiten Öffnung im Kommunikation steht, und einen inneren Raum (30) von dem äußeren Gehäuse, welcher einen Einlassabschnitt (21) von dem Lüftergehäuse gegenüberliegt, voneinander. Der vergrößerte Wandabschnitt definiert einen Lüftungsdurchlass (31) durch den Einlassabschnitt, und die erste Öffnung steht mit der zweiten Öffnung durch den Lüftungsdurchlass in Kommunikation.

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.

Kreiselpumpengehäuse aus Metallblech.

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.

SPR foil

Semi-spherical entrainment type high flow self-priming centrifugal pump

MULTI-STAGE CENTRIFUGAL PUMP WITH MEANS FOR PULSE CANCELLATION

Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device

This centrifugal blower is provided with: a fan that has a disk-shaped main plate and a plurality of blades; and a scroll casing that houses the fan. The scroll casing is provided with a discharge part and a scroll part that has a side wall, a peripheral wall, and a tongue part. When compared to a centrifugal blower that has a reference peripheral wall having a logarithmic spiral shape in a cross-section perpendicular to the rotary shaft of the fan, the peripheral wall has a plurality of expanded parts in which: at a first end which becomes a boundary between the peripheral wall and the tongue part and a second end which becomes a boundary between the peripheral wall and the discharge part, a distance L1 between the shaft center of the rotary shaft and the peripheral wall is equal to a distance L2 between the shaft center of the rotary shaft and the reference peripheral wall; the distance L1 is equal to or larger than the distance L2 in a range between the first end and the second end of ...

Wear resistant slurry handling equipment

A method of protecting slurry handling equipment is presented which involves (a) identifying one or more types of wear events (erosion, abrasion, corrosion) to which a surface of the slurry handling equipment is susceptible during operation; (b) estimating the severity of each type of wear event the surface will experience during operation; and (c) applying one or more of a thermal spray coating comprising a metal carbide or a metal nitride, and an erosion resistant organic coating to the surface. The types and severity of the wear events are predicted using one or more computational fluid dynamics models, and the application of either or both of the thermal spray coating and the erosion resistant organic coating to the surface is predicated on the types of wear events identified and their estimated severity. In addition, slurry handling equipment and components thereof protected using the method are provided.

MULTIPHASE PUMP

A multiphase pump is proposed for conveying a multiphase process fluid a low pressure side (LP) to a high pressure side (HP), comprising an outer housing and a casing (10), the casing (10) having a pump inlet (2) and a pump outlet (3) for the process fluid, the multiphase pump (1)further comprising a pump rotor (4) for rotating about an axial direction (A) arranged within the casing (1), with the pump rotor (4) being designed for conveying the process fluid from the pump inlet (2) to the pump outlet (3). The multiphase pump is characterized in that the casing comprises a plurality of stage segments (51, 52, 71, 72, 73), and the plurality of stage segments (51, 52, 71, 72, 73) comprise an individual stage-segment (71, 72, 73), a low pressure segment (51) arranged at the pump inlet (2) and a high pressure segment (52) arranged at the pump outlet (3), wherein the individual stage-segment (71, 72, 73) is arranged between the high pressure segment (52) and the low pressure segment (51), and ...

PUMP CASING FOR A CENTRIFUGAL PUMP AND CENTRIFUGAL PUMP

A pump casing for a centrifugal pump is proposed, the pump casing extending in an axial direction (A) and having a first housing part (2), a second housing part (3) for being sealingly attached to the first housing part (2), a plurality of securing elements (4) for linking the first and the second housing part (2, 3), and a radial sealing element (5) for sealing between the first and the second housing part (2, 3), wherein the first housing part (2) has a first axial end surface (21), and the second housing part (3) has a second axial end surface (31), said first and second axial end surfaces (21, 31) facing each other, and wherein the first axial end surface (21) comprises an annular protrusion (22) extending in the axial direction (A) and the second axial end surface (31) comprises an annular recess (32) configured for engaging with the annular protrusion (22), wherein the annular protrusion (22) is arranged radially inwardly with respect to the securing elements (4). In addition, a centrifugal ...

SINGLE-STEP CENTRIFUGAL PUMPING UNIT

METHOD AND DEVICE FOR REDUCING PERIPHERY UNBALANCE PRESSURE IN SIDE CAVITY WORKING WHEEL TURBOMACHINE

CENTRIFUGAL FAN AND HEATING DEVICE PROVIDED THEREWITH

Pressure measuring connector structure of fan

Multi-stage turbine with embedded electric motor

CORPS DE POMPE CENTRIFUGE

Ce corps de pompe centrifuge forgé, de forme cylindrique, est caractérisé en ce qu'une ou plusieurs tubulures de raccordement 4 sont soudées au corps de pompe proprement dit 1 par un cordon de soudure 3 dont la ligne de gravité est toute entière contenue dans un plan, sur une face 2 plane ou sphérique usinée en pleine matière du corps. (CF DESSIN DANS BOPI) ...

Improvements brought to the installations of compression has two stages of compression.

PROCEDE POUR REALISER UN ENSEMBLE MONOBLOC COMPRENANT AU MOINS DEUX PIECES MOBILES EN ROTATION L'UNE PAR RAPPORT A L'AUTRE, PAR EXEMPLE UN ROBINET, UNE TRANSMISSION A ROTULE, UNE SERRURE A ROTOR EXCENTRE OU UN SYSTEME HYDRAULIQUE A ROTOR A AUBES ET ARTICLES OBTENUS PAR CE PROCEDE

PROCEDE POUR REALISER UN ENSEMBLE MONOBLOC COMPRENANT AU MOINS DEUX PIECES 9A, 10A EN ROTATION L'UNE PAR RAPPORT A L'AUTRE, ET CARACTERISE EN CE QU'ON REALISE PAR UN MOYEN QUELCONQUE CELLE DES PIECES 9A DONT LA FORME EST LA PLUS FACILE A OBTENIR, ET QU'ON SURMOULE ENSUITE SUR ELLE LA PIECE 10A DONT LA FORME EST LA PLUS COMPLIQUEE, NOTAMMENT EN RAISON DE LA OU DES CAVITES QU'ELLE DOIT PRESENTER. ENSEMBLE MONOBLOC OBTENU PAR CE PROCEDE.

TURBO BLOWER APPARATUS HAVING INTEGRALLY COUPLED DISCHARGE PIPE

According to the present invention, a turbo blower apparatus comprises: a driving unit (10) taking in external air introduced through an inlet (4) formed in a hollow cabinet (1) to be blown and compressing the external air supplied from the inlet (4) to be discharged; a blower unit (11) connected to the driving unit (10); and a discharge pipe coupled to the blower unit (11) using a flange and fixated and coupled to an upper end of the cabinet (1). Accordingly, the present invention provides a stable structure, wherein pipes disposed in the discharge pipe and the outside of the cabinet to be connected through the additional flange while the discharge pipe connected to the blower disposed inside the turbo blower apparatus is integrally fixated to the cabinet as the exterior. COPYRIGHT KIPO 2016 ...

HOUSING FOR COMPRESSING APPARATUS AND COMPRESSING APPARATUS

According to one aspect of the present invention, a housing for a compressing apparatus is provided. The housing for a compressing apparatus comprises: an inner housing unit storing at least a portion of an impeller unit; an outer housing unit having an inner housing storage unit storing at least a portion of the inner housing unit; and an intermediate housing unit disposed between the inner housing unit and the outer housing unit to form a flow passage unit with at least one among the inner housing unit and the outer housing unit. The purpose of the present invention is to provide a compressing apparatus, and the housing for a compressing apparatus which can reduce manufacturing costs. COPYRIGHT KIPO 2016 ...

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SUCTION DEVICE WITH SOUND MIRROR DEVICE

A suction device is provided which includes a fan device for generating a suction air flow and an air conveying device having at least one flow deflection element comprising an inlet tube and an outlet tube, wherein the outlet tube is oriented transversely to the inlet tube, and wherein in a transitional area between the inlet tube and the outlet tube there is arranged a sound mirror device, which at least one of (i) reflects and (ii) absorbs sound.

Blower arrangement with flow dividing nozzle

A blower arrangement comprising an impeller, which has an axial intake opening formed by a cover plate covering impeller blades at least in sections, by an intake nozzle connected upstream of the impeller, which extends at least in sections into an overlap section in the intake opening of the impeller, wherein a circumferential nozzle gap is formed between the intake nozzle and the cover plate of the impeller, an outer nozzle, which is arranged spaced apart in the radial direction in relation to the impeller and the intake nozzle and enclosing them in the circumferential direction. A first circumferential radial gap is provided between the outer nozzle and the intake nozzle, which forms an inlet nozzle duct extending in the flow direction. A second circumferential radial gap is provided between the outer nozzle and the cover plate of the impeller, which forms a gap duct extending in the flow direction.

Electric pump and mounting structure of electric pump

An electric pump includes: a pump main body that accommodates a pump unit and a motor; and a plate-shaped elastic member that is wound around an outer circumference of the pump main body such that a longitudinal direction of the elastic member extends along a circumferential direction of the pump main body, in which the elastic member is provided with a pair of first locking portions on both end portions in the longitudinal direction, and the outer circumference of the pump main body is provided with a pair of first locking target portions that are locked to the first locking portions.

Sensing device, system and method for a pump

A sensing device for a centrifugal slurry pump having an impeller which rotates about an axis, the centrifugal slurry pump including a side liner and a main liner housed within an outer casing of the pump, the sensing device comprising; a body portion arranged to pass through the outer casing, wherein the body portion includes a sensor biased towards contact with either the side liner or the main liner of the pump.

КОРПУС НАСОСА ДЛЯ ЦЕНТРОБЕЖНОГО НАСОСА И ЦЕНТРОБЕЖНЫЙ НАСОС

Корпус насоса для центробежного насоса, при этом корпус насоса продолжается в осевом направлении (А) и имеет первую корпусную деталь (2), вторую корпусную деталь (3) для герметичного присоединения к первой корпусной детали (2), множество крепежных элементов (4) для соединения первой и второй корпусной детали (2, 3) и радиальный уплотнительный элемент (5) для уплотнения между первой и второй корпусной деталью (2, 3), причем первая корпусная деталь (2) имеет первую осевую торцевую поверхность (21), а вторая корпусная деталь (3) имеет вторую осевую торцевую поверхность (31), при этом упомянутые первая и вторая осевые торцевые поверхности (21, 31) обращены друг к другу, причем первая осевая торцевая поверхность (21) содержит кольцевой выступ (22), продолжающийся в осевом направлении (А), а вторая осевая торцевая поверхность (31) содержит кольцевую выемку (32), выполненную с возможностью зацепления с кольцевым выступом (22) и обеспечения внешнего центрирования, при этом кольцевой выступ (22) ...

НАСОС ОХЛАЖДАЮЩЕЙ ВОДЫ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к насосу охлаждающей воды для энергетической установки и способу его изготовления. Насос выполнен с корпусом, который отлит из бетона, и содержит множество элементов опалубки из армированной стекловолокном пластмассы. Насос выполнен в виде спирального насоса. Предусмотренная для образования элементов опалубки армированная стекловолокном пластмасса содержит стекловолокно, кварцевый песок и синтетическую смолу. Способ изготовления насоса заключается в том, что множество предварительно изготовленных элементов опалубки из армированной стекловолокном пластмассы собирают на месте установки насоса в опалубку, которую применяют при отливке бетонного корпуса насоса в качестве стационарной опалубки. Изобретение направлено на обеспечение при изготовлении насоса гладкой внутренней поверхности и точных размеров его корпуса. 2 с. и 2 з.п.ф-лы, 1 ил.

ВСАСЫВАЮЩЕЕ СОЕДИНЕНИЕ, ПРЕДНАЗНАЧЕННОЕ ДЛЯ СОЕДИНЕНИЯ ВСАСЫВАЮЩЕЙ ТРУБЫ С ЦЕНТРОБЕЖНЫМ НАСОСОМ, УСТАНОВЛЕННЫМ СУХИМ

Изобретение относится к машиностроению и может быть использовано для откачивания насосом использованной или сточной воды. Всасывающее соединение предназначено для соединения всасывающей трубы с центробежным насосом, установленным сухим, содержащее первый и второй фланцы. Первый фланец включает в себя центрально расположенное сквозное отверстие и выполнен с возможностью соединения с выходом всасывающей трубы. Второй фланец включает в себя центрально расположенное сквозное отверстие и выполнен с возможностью соединения с входом центробежного насоса. Всасывающее соединение содержит первую муфту трубы, выполненную с возможностью перемещения в осевом направлении, видимом в направлении потока, между рабочим положением, в котором упомянутая первая муфта трубы соединяет с возможностью разъединения первый фланец и второй фланец, и, таким образом, приводит сквозное отверстие первого фланца в связь по текучей среде со сквозным отверстием второго фланца, и положением обслуживания, в котором первая ...

Входной сопловой аппарат турбомашины для асимметричного потока с лопатками различной формы

В некоторых вариантах выполнения всасывающая камера устройства для передачи энергии между вращающимся элементом и текучей средой может содержать сквозное отверстие, проходящее через всасывающую камеру, входные направляющие лопатки, расположенные вблизи периферической кромки сквозного отверстия и содержащие первую группу входных направляющих лопаток, имеющих симметричный профиль, вторую группу входных направляющих лопаток и третью группу входных направляющих лопаток, при этом все входные направляющие лопатки второй группы и третьей группы имеет изогнутый профиль, и изогнутый профиль каждой входной направляющей лопатки третьей группы отличается от изогнутого профиля остальных лопаток третьей группы. 2 н. и 18 з.п. ф-лы, 8 ил.

НАГНЕТАТЕЛЬНЫЙ УЗЕЛ (ВАРИАНТЫ), ТРАНСПОРТНОЕ СРЕДСТВО И СПОСОБ ИЗМЕНЕНИЯ СКОРОСТИ ВОЗДУШНОГО ПОТОКА В НАГНЕТАТЕЛЬНОМ УЗЛЕ

Изобретение относится к системе обогрева, вентиляции и кондиционирования воздуха. Нагнетательный узел содержит корпус, имеющий стенку в форме «улитки», электродвигатель, имеющий выходной вал, продолжающийся в корпусе, лопастное колесо, расположенное в корпусе и установленное на выходном валу, для создания воздушного потока вдоль тракта воздушного потока в корпусе, выпуск воздушного потока и отсекатель. Отсекатель может поворачиваться вокруг своей центральной или центровой оси и образует, по существу, непрерывную поверхность со стенкой в форме «улитки» и с выпуском воздушного потока вдоль тракта воздушного потока в первом положении, и образует воздушный зазор. Нагнетательный узел также содержит исполнительный механизм для поворота отсекателя из первого положения во второе положение, в котором воздушный зазор увеличен для уменьшения воздушного потока. Достигается упрощение конструкции и уменьшение турбулентности, шума и вибрации. 4 н. и 14 з.п. ф-лы, 3 ил.

РАМНАЯ ПЛИТА СО СТЯГИВАЮЩИМИ СТЕРЖНЯМИ ДЛЯ ЦЕНТРОБЕЖНОГО НАСОСА

Обеспечена универсальная рамная плита, предназначенная для центробежных насосов, которые включают в себя корпус насоса. Рамная плита включает в себя втулку, сконфигурированную для селективного прикрепления к первому корпусу насоса, имеющему выпускной патрубок, расположенный на первой стороне, или ко второму корпусу насоса, имеющему выпускной патрубок, расположенный на второй стороне, которая противоположна первой стороне. Сегмент первой стороны простирается радиально наружу от втулки. Сегмент первой стороны сконфигурирован для покрытия основания выпускного патрубка первого корпуса насоса, когда рамная плита прикреплена к первому корпусу насоса. Сегмент второй стороны простирается радиально наружу от втулки вдоль противоположных радиальных направлений относительно сегмента первой стороны. Сегмент второй стороны сконфигурирован для покрытия основания выпускного патрубка второго корпуса насоса, когда рамная плита прикреплена ко второму корпусу насоса. 3 н. и 17 з.п. ф-лы, 4 ил.

УСТРОЙСТВО ГАЗОВОЗДУШНОГО СМЕСИТЕЛЯ ДЛЯ ГОРЮЧЕГО ГАЗА С ПРЕДВАРИТЕЛЬНЫМ СМЕШИВАНИЕМ

... 1. Устройство смесителя для горелок горючего газа, содержащее:- блок (6) вентилятора с крыльчаткой (7), имеющей радиальные лопасти (8), приводимой в движение вокруг оси (X) вращения, и с осевой впускной секцией (9) и радиально противоположной выпускной секцией (10),- трубопровод (11) для размещения крыльчатки упомянутого вентилятора,- первый канал (15) для подачи потока воздуха во впускную секцию, при этом упомянутый первый канал является соосным с осью (X) вращения и имеет терминальную часть (15a), сходящуюся в непосредственной близости от впускной секции (9),- второй трубчатый канал (16) для подачи потока газа на конце сходящейся части (15a), имеющей наименьшее поперечное сечение, при этом второй трубчатый канал является соосным с первым каналом (15) так, что поток воздуха смешивается с потоком газа по потоку до впускной секции (9) вентилятора,- лопасти (8) крыльчатки, выступающие из базовой поверхности (12) крыльчатки, при этом каждая лопасть (8) имеет переднюю кромку (13), расположенную ...

ВЕНТИЛЯТОР СО СТАКАНОМ И КОЛПАКОМ И СПОРТИВНЫЙ ПОИЛЬНИК, СОДЕРЖАЩИЙ ТАКОЙ ВЕНТИЛЯТОР

Настоящее изобретение относится к области вентиляторов, и в частности к вентилятору со стаканом и колпаком и спортивному поильнику, содержащему такой вентилятор. Вентилятор со стаканом и колпаком содержит основание, содержащее крышечную часть, образованную на его нижнем участке, для закрывания кромки корпуса стакана; узел лопастей вентилятора, расположенный на верхнем участке основания и содержащий кожух вентилятора и крыльчатку, установленную в кожух вентилятора; управляющий элемент и источник питания, соответственно соединенные с узлом лопастей вентилятора и размещенные в основании; крышечная часть является соединительной частью, расположенной на периферии кромки стакана, или соединителем, расположенным внутри кромки стакана, кожух вентилятора соединен с возможностью вращения с основанием с помощью соединительного элемента для обеспечения взаимного открывания и закрывания кожуха вентилятора и верхней поверхности основания посредством вращения кожуха вентилятора вдоль соединительного элемента ...

Zentrifugalverdichter

Ein Zentrifugalverdichter weist einen Motor, der eine Drehwelle eines Verdichterlaufrads dreht, ein Motorgehäuse, das den Motor aufnimmt, ein Verdichtergehäuse, das das Verdichterlaufrad aufnimmt und eine Ansaugöffnung und eine Abgabeöffnung aufweist, eine Luftauslassöffnung, die in einer Strömungsrichtung in dem Verdichtergehäuse näher an der Abgabeöffnung vorgesehen ist als das Verdichterlaufrad, eine Kühlgasleitung, welche mit der Luftauslassöffnung verbunden ist und durch welche ein Teil eines verdichteten Gases tritt, das durch das Verdichterlaufrad verdichtet wird, eine Kühlflüssigkeitsleitung, von welcher zumindest ein Teil in dem Motorgehäuse vorgesehen ist und durch welche eine Kühlflüssigkeit tritt, deren Temperatur niedriger ist als die Temperatur des verdichteten Gases, und einen Wärmetauscher auf, der an der Kühlgasleitung und der Kühlflüssigkeitsleitung angeordnet ist.

Kühlmittelpumpe mit einer Ventilgruppe mit Absperrorgan

Pumpe (1) für einen Kühlkreislauf, insbesondere für Fahrzeuge, aufweisend: einen Rotor (4), welcher Kühlflüssigkeit durch einen Ansaugbereich ansaugt und die Kühlflüssigkeit unter Druck an einen Zufuhrabschnitt schickt; einen Pumpenkörper (2), in dem eine stromabwärts des Rotors (4) angeordnete Zufuhrkammer (6) und ein mit der Zufuhrkammer (6) verbundener Zufuhrkanal (8), der mit dem Zufuhrabschnitt des Kühlkreislaufs verbindbar ist, und eine zwischen der Zufuhrkammer und dem Zufuhrkanal (8) angeordnete Aufnahmekammer (200) für eine Ventilgruppe (10) ausgebildet sind; und eine Ventilgruppe (10), die eine geschlossene Konfiguration hat, in welcher der Durchtritt der Kühlflüssigkeit verhindert wird, und die einen Ventilkörper (12) aufweist, welcher mittels eines entlang einer Rotationsachse (Y-Y) langestreckten Elements ausgebildet und mit einem Durchgangskanal (14) versehen ist, sowie ein Absperrorgan (30) aufweist, das in dem Kanal (14) behaust ist, wobei das Absperrorgan einen aktiven ...

Centrifugal pump apparatus

A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

Вентиляторный блок воздухонагнетателя

1. Блок воздухонагнетателя для системы обогрева, вентиляции и кондиционирования воздуха, который содержит кожух с установленным в нем мотором, первый вентилятор и второй вентилятор, функционально соединенные с мотором и выровненные по одной оси относительно друг друга таким образом, чтобы втягивать воздух из первого впускного отверстия и второго впускного отверстия соответственно, а также выпускное отверстие, в которое поступает воздух от первого вентилятора и второго вентилятора и которое направляет воздух в пассажирский салон.2. Блок воздухонагнетателя по п.1, который содержит вал, приводимый в действие мотором и проходящий от первого и второго противоположных концов мотора, где первый вентилятор соединен с первым концом вала, а второй вентилятор соединен со вторым концом вала.3. Блок воздухонагнетателя по п.2, в котором кожух также имеет первое впускное отверстие, через которое первый вентилятор втягивает воздух в кожух, и второе впускное отверстие, через которое второй вентилятор втягивает воздух в кожух.4. Блок воздухонагнетателя по п.3, в котором первый вентилятор выполнен с возможностью втягивать рециркуляционный воздух из пассажирского салона и воздух снаружи от пассажирского салона.5. Блок воздухонагнетателя по п.1, в котором первый вентилятор выполнен с возможностью втягивать рециркуляционный воздух из пассажирского салона и воздух снаружи от пассажирского салона.6. Блок воздухонагнетателя по п.1, в котором второй вентилятор выполнен с возможностью втягивать рециркуляционный воздух из пассажирского салона и воздух снаружи пассажирского салона.7. Блок воздухонагнетателя по п.1, в котором первый в РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 142 830 U1 (51) МПК B60H 1/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014106120/11, 19.02.2014 (24) Дата начала отсчета срока действия патента: 19.02.2014 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): МЭРАНВИЛЛ Клэй ...

Система для компрессора турбонагнетателя (варианты)

1. Система для компрессора турбонагнетателя, содержащая:приводимый в движение кольцеобразный диск, содержащий дроссельные отверстия в нем;наружный кольцеобразный диск, содержащий дроссельные отверстия в нем; ипривод для поворачивания приводимого в движение кольцеобразного диска относительно наружного кольцеобразного диска, чтобы менять совмещение дроссельных отверстий приводимого в движение кольцеобразного диска и наружного кольцеобразного диска.2. Система по п. 1, в которой каждое из дроссельных отверстий расположено смежно впуску дроссельного канала, открытого к впуску компрессора, когда дроссельные отверстия совмещены, при этом выпуск дроссельного канала находится в сообщении по текучей среде с крыльчаткой в положении ниже по потоку от передней кромки разделяющих лопастей и передней кромки полных лопастей крыльчатки.3. Система по п. 2, дополнительно содержащая стравливающий канал, выпуск которого постоянно открыт к впуску компрессора, и впуск которого находится в сообщении по текучей среде с крыльчаткой выше по потоку от передней кромки разделяющих лопастей и ниже по потоку от передней кромки полных лопастей.4. Система по п. 3, в которой стравливающий канал расположен аксиально внутри дроссельного канала.5. Система по п. 1, в которой привод является вакуумным приводом.6. Система по п. 1, дополнительно содержащая контроллер двигателя с командами, хранимыми в нем, для управления приводом на основании условий работы компрессора турбонагнетателя.7. Система по п. 1, в которой наружный кольцеобразный диск содержит вставную часть на своей внутренней окружности, причем периферия вставной части совмещена с вне� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 150 653 U1 (51) МПК F02B 37/12 (2006.01) F02D 23/00 (2006.01) F04B 39/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014125533/06, 24.06.2014 (24) Дата начала отсчета срока действия патента: 24.06.2014 Приоритет(ы): (30) Конвенционный ...

Compact scroll fan assembly

A radial fan assembly for use in a powered air purifying respirator includes at least an impeller, a printed circuit board and a scroll casing. The scroll casing has a first and a second scroll casing element. The second scroll casing element includes at least a portion of the printed circuit board. When the radial fan assembly is used in a powered air purifying respirators, the respirator may also include components such as a filter assembly.

Shrouded thrust bearings

A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapted to cause blood entering the pumping chamber to move to the blood outlet. The impeller has one or more magnetic regions. The impeller is radially constrained in rotation by magnetic coupling to one or more motor stators and is axially constrained in rotation by one or more hydrodynamic thrust bearing surfaces on the impeller.

Lead wire engaging structure and electric apparatus

A lead wire engaging structure includes a first engaging portion and a second engaging portion. One end of the first engaging portion and one end of the second engaging portion are integrally provided at a first mounting portion integrally provided at a second casing wall portion. The first engaging portion forms a first gap between the first engaging portion and the second casing wall portion, and engages four lead wires in cooperation with the second casing wall portion. The first gap allows the four lead wires to pass therethrough. The second engaging portion forms a second gap between the second engaging portion and the first engaging portion. The second gap allows the four lead wires to pass therethrough. The other end portion of the first engaging portion and the other end portion of the second engaging portion are coupled to each other by a coupling portion.

Blower fan

A blower fan includes a housing arranged to accommodate an impeller, wherein an upper surface portion of the housing includes a motor fixing portion, a peripheral portion, and a plurality of ribs interconnecting the motor fixing portion and the peripheral portion, the upper surface portion including a plurality of air intake ports defined between the motor fixing portion, the peripheral portion and the plurality of ribs being arranged to oppose the impeller; and the peripheral portion includes a peripheral low portion arranged to surround or substantially surround outer peripheries of the air intake ports and positioned lower than upper surfaces of the plurality of ribs and a peripheral high portion provided with rib extension portions continuously extending from the plurality of ribs and positioned higher than an upper surface of the peripheral low portion.

Mechanism for modulating diffuser vane of diffuser

A mechanism modulates a fluid flow in a diffuser flow path of a compressor diffuser, including: a shroud disposed on the diffuser flow path and having a cam and a driving wheel fixed base; a diffuser vane having a diffuser guide vane disposed in the diffuser flow path and a diffuser vane shaft fixedly disposed on the diffuser vane that penetrates from the diffuser flow path through the shroud; a driving ring sleeved on the cam and having a moving bar; a sliding block having one end connected with one end the diffuser vane shaft that penetrates through the shroud, and the other end sleeved on a sliding groove formed on the moving bar; a driving wheel disposed in the driving wheel fixed base and having a driving shaft connected to an actuator outside of the compressor; and a driving cable connected to the driving wheel and the driving ring.

Impeller and fluid pump

A fluid pump may include an electric motor having an output shaft driven for rotation about an axis and a pump assembly coupled to the output shaft. The pump assembly has a first cap and a second cap with at least one pumping channel defined between the first and second caps, and an impeller between the first and second caps. The impeller is driven for rotation by the output shaft of the motor and includes a plurality of vanes in communication with the at least one pumping channel. Each vane has a root segment and a tip segment and a line from a base of the root segment to an outer edge of the tip segment trails a line extending from the axis of rotation to the base of the root segment by an angle of between 0° and 30° relative to the direction of rotation of the impeller.

Pipeline pump shaped by stamping and welding

A pipeline pump shaped by stamping and welding, comprises a pump body, a pedestal, a pump rear cover and a motor installed at the opening of the pump body, and an impeller arranged inside the pump body. The pump body is comprised of an inner cylinder and an outer cylinder. A flow guide part, the impeller, an exhaust part, and the pump rear cover mounted on the opening of the outer cylinder are coaxially arranged upwards in turn from the opening of the inner cylinder. The impeller is axial suction and radial discharge. The disk bottom of the flow guide part is sealed with the opening of the inner cylinder. The impeller is coaxially arranged inside the flow guide part, and a flow guide vanes corresponding to a radial exhaust port of the impeller are provided on a circumferential wall of the flow guide part.

Pump

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

Blower

A blower includes an air pump and a motor. The pump includes an impeller and a casing housing the impeller. The casing includes a casing inlet through which air is drawn in and a casing outlet through which the air is expelled by the impeller. The motor is arranged at the casing outlet and includes a stator and a rotor. The stator includes a stator core and a plurality of coils. The stator core includes a substantially ring-shaped yoke and a plurality of teeth extending inwards from the yoke. Each coil is wound around the yoke and is partially sandwiched between two adjacent teeth. The impeller is driven by the rotor.

Pump Casing And Related Apparatus And Methods

A pump casing has a metallic band that defines a sidewall of the pump casing and having at least one tab projecting from a surface thereof or at least one opening. The pump casing also has first and second plates disposed opposite one another, with the metallic band being disposed there between, and with the first and second plates and the metallic band jointly defining a chamber of the pump casing. At least one of the first or second plates includes at least one tab or at least one opening respectively cooperating with the at least one opening or the at least one tab of the metallic band so as to retain a formed shape of the metallic band in the pump. The at least one opening may, for example, be a slot in the at least one of the first or second plates.

Centrifugal compressor having an asymmetric self-recirculating casing treatment

A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial-direction position S r from an upstream end face of the suction ring groove to an impeller full blade leading edge 4 or a width b r of the suction ring groove 1 is represented as A(α·D−β·D) 2 +A 0 and is distributed in a parabolic shape in a circumferential direction. An initial phase angle θ 0 is in a range of 0≦θ 0 ≦2π. A circumferential angle α of the casing has a definition range of θ 0 ≦α≦θ 0+ 2λ. In the expression, A denotes a parameter of the parabola in the axial-direction position S r or the width b r , and A 0 denotes an extreme of the axial-direction position S r or the width b r when corresponding circumferential angle β and the α are equal at an extreme point of distribution of the parabola.

Rotary Pump with Spiral Casing

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

Pump motor combination

A pumping apparatus includes a housing having an inlet at a first end and an outlet at an opposite second end. An encapsulated stator defines an opening and is supported by the housing. A pressure plate includes diffuser vanes formed as part of the pressure plate. The pressure plate is formed as part of the encapsulated stator. A rotor is positioned at least partially within the opening and is rotatable with respect to the stator and an impeller is coupled to the rotor and cooperates with the pressure plate and the housing to pump a fluid from the inlet to the outlet in response to rotation of the rotor.

Centrifugal fan and projector

A centrifugal fan introducing air via an inlet port in a direction of a rotation axis and discharging the air via an outlet port in the a direction of a centrifugal force produced by rotation includes: an impeller having a plurality of vanes around the rotation axis; and a housing including the inlet port and supporting the impeller such that the impeller is allowed to freely rotate in the housing. An inclined portion is formed at least at a part of edge portion of the inlet port, the inclined portion widening to the side that the impeller is disposed.

Ventilating fan

A ventilating fan includes a sirocco fan disposed in a box-shaped body and an adapter connected to an air outlet of the sirocco fan. The sirocco fan is composed of two opposite scroll plates with scroll shapes and a casing plate sandwiched between the two scroll plates. An overall air inlet of the sirocco fan is disposed on the first scroll plate and a central line of the air outlet of the adapter is offset towards the second scroll plate. The present invention is advantageous in that no turbulence is generated at the adapter and the wind amount of the ventilating fan is thus ensured and noise is reduced. Therefore, the present invention can provide a small air blowing device with high efficiency and improve stability of performance of the product.

MULTIBLADE CENTRIFUGAL FAN AND AIR CONDITIONER EQUIPPED WITH THE SAME

Provided are a low-noise, high-performance multiblade centrifugal fan that suppresses interference between rotational flows generated within extension sections that are extended in a rotation-axis direction at upper and lower end surfaces of a scroll casing, and an air conditioner equipped with the same. In a multiblade centrifugal fan having an impeller disposed in a rotatable manner about a rotation shaft within a scroll casing having a flow path whose cross section gradually increases in a rotational direction, at least one of upper and lower end surfaces of the scroll casing serves as an inclined end surface that is extended in the extending direction of the rotation shaft such that an extended height thereof gradually increases in the rotational direction from a scroll start position, and a stepped section extending in the rotational direction is provided between the inclined end surface and an inner-peripheral side surface of an extension section. 1. A multiblade centrifugal fan having an impeller disposed in a rotatable manner about a rotation shaft within a scroll casing having a flow path whose cross section gradually increases in a rotational direction ,wherein at least one of upper and lower end surfaces of the scroll casing serves as an inclined end surface that is extended in a rotation-axis direction such that an extended height thereof gradually increases in the rotational direction from a scroll start position of the scroll casing, andwherein at least one stepped section extending in the rotational direction is provided between the inclined end surface and an inner-peripheral side surface of an extension section.2. The multiblade centrifugal fan according to claim 1 , wherein the lower end surface opposite the upper end surface that is provided with an inlet in the scroll casing serves as the inclined end surface that is extended in the rotation-axis direction such that the extended height thereof gradually increases in the rotational direction claim ...

BLOOD PUMP INCLUDING A ROTOR

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

Pump with Hydraulic Isolator

Embodiments of the invention provide a hydraulic isolator to split a volute of a pump into two compartments. The hydraulic isolator is positioned within the volute and includes an inlet positioned around a volute inlet channel of the pump, and an outlet positioned adjacent to an outlet channel of the pump. The hydraulic isolator also includes a toroidal portion to at least partially surround an impeller of the pump.

Fluid Movement System and Method for Determining Impeller Blade Angles for Use Therewith

A fluid movement system that includes an impeller having a blade with a leading edge blade tip angle determined as a function of an increase in mass flow rate due to reinjection of flow from a flow stability device located proximate to the leading edge tip of the blade. In an exemplary method, the leading edge blade tip angle can be determined based on selecting a blade incidence level based on a mass flow gain versus flow coefficient curve. Blade leading edge tip angles determined in accordance with a method of the present invention are typically greater than blade leading edge tip angles determined using traditional methods. The greater blade leading edge tip angles can lead to more robust blades designs.

Centrifugal Pump

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

Electric blower and vacuum cleaner comprising same

Disclosed is an electric blower having a stator, a rotor, a bracket, a rotary fan, an air guide and a fan case. The air guide comprises a partition plate, a diffuser disposed around outer periphery of the rotary fan in the air guide, a partition-plate sloped portion and a guide vane. The fan case has a fan-facing portion, a fan case shoulder bent at the outermost part of the fan-facing portion, and a cylindrical portion extending cylindrically in an axial direction from the fan case shoulder. The fan case shoulder is so bent that it forms substantially a right angle.

Thin fan and manufacturing method thereof

A manufacturing method of a thin fan comprises the steps of: providing a plastic material containing a plurality of metal particles; molding the plastic material into a housing; removing a part of a surface of the housing to form a circuit layout area at the housing; and forming a metal layer in the circuit layout area.

MULTISTAGE COMPRESSOR WITH IMPROVED MAP WIDTH PERFORMANCE

A compressor typically for use in a turbocharger comprises a downstream radial compressor impeller wheel, an upstream axial compressor impeller wheel and an intermediate stator. The compressor housing has an inlet with inner and outer walls that define between them an MWE gas flow passage. An upstream opening defined by the flow passage provides communication between said passage and the intake and at least one first slot downstream of the upstream opening provides communication between the passage and the inner surface of the inner wall. The stator comprises a plurality of fixed vanes and is disposed in the inner wall of the inlet between the radial and axial impeller wheels. The position of the slot can be at one of several positions along the gas flow passage, hi other embodiments there are second and third slots and the flow passage is divided into two parts. All the arrangements are designed to improve the compressor map width. 191.-. (canceled)92. A compressor comprising:a housing defining a gas inlet and a gas outlet;a radial impeller wheel having a plurality of vanes and mounted in the housing between said inlet and outlet, the wheel being rotatable about an axis;the inlet comprising a substantially tubular outer wall extending away from the impeller wheel in an upstream direction and forming a gas intake, and a substantially tubular inner wall extending away from the impeller wheel in an upstream direction and within the outer wall, the inner wall defining an inner surface at least a portion of which is located in close proximity to radially outer edges of the vanes of the radial impeller which sweep across said surface as the radial impeller wheel rotates about its axis;a substantially tubular gas flow passage defined between the inner and outer walls and extending from an upstream end to a downstream end proximate to the radial impeller wheel;an upstream opening defined by the flow passage providing communication between said passage and said intake;at ...

Blade cascade and turbomachine

A blade cascade for a turbomachine having a plurality of blades arranged next to one another in the peripheral direction, at least two blades having a variation for generating an asymmetric outflow in the rear area, as well as a turbomachine having an asymmetric blade cascade, which is connected upstream from another blade cascade, are disclosed.

Centrifugal fan

A centrifugal fan may include an impeller arranged to rotate about a rotation axis, an impeller case arranged to accommodate the impeller, a motor arranged to rotate the impeller, and a motor case arranged to accommodate the motor. The impeller may include a boss portion joined to a shaft arranged to rotate about the rotation axis, a hub arranged to extend radially outward from the boss portion, and a plurality of blades. Each blade may be arranged to extend radially outward. An inner wall of the impeller case may include an inside surface extending radially outward along an upper end portion of each blade. A side end portion of an air inlet defined in a central portion of the impeller case may include a curved surface projecting radially inward.

Catheter device

The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like boundary frame and rotor struts extending radially inwards from the boundary frame. The rotor struts are fastened to the drive shaft by their ends opposite the boundary frame. Between the boundary frame and the drive shaft extends an elastic covering. The frame structure is made of an elastic material such that, after forced compression, the rotor unfolds automatically.

Compressor and method of assembling the same

A compressor casing to allow easy assemblage and disassembling, a compressor provided with the same, and a method of assembling the compressor are provided. The compressor casing includes a substantially tubular casing, a plurality of sealing surfaces provided on an inner circumferential surface of the casing along an axial direction thereof, a sealing means provided for each sealing surface, a substantially cylindrical bundle for accommodating a blade inside and for being assembled to the casing so as to contact with the sealing surfaces, and a roller provided on an outer circumferential surface of the bundle, for rolling on the inner circumferential surface of the casing when the bundle is assembled to or removed from the casing. The sealing surfaces are connected with one another tapered surfaces.

Centrifugal fan and fan with sound-muffling box having the centrifugal fan built-in

A centrifugal fan includes a casing side plate with a casing inlet, a spiral scroll, a tongue, a casing outlet, a main plate, a retaining ring, multiple blades arranged between the main plate and the retaining ring, and an air-intake space surrounded by the blades. The centrifugal fan further includes an airflow accelerator in the air-intake space for increasing an airflow speed of a gas toward the blades.

TURBINE SCROLL PART STRUCTURE

In a turbine scroll part structure of a radial turbine, a flow passage of a connecting part between an exhaust gas inlet into a turbine housing and a scroll part is offset along an axis line L of a rotating shaft of a turbine rotor in an amount H, and a cut-out portion P is formed in a tongue portion , which separates the flow passage from a blade side passage through which the exhaust gas flows toward blades , for the exhaust gas to flow from the flow passage into the blade side passage 1. A turbine scroll part structure of a radial turbine configured to rotate a turbine rotor by introducing exhaust gas from a spiral scroll part formed inside a turbine housing radially toward blades of the scroll part to exert a force on the blades , then discharging the gas in an axial direction , whereina flow passage of a connecting part between an exhaust gas inlet into the turbine housing and the scroll part is offset along an axis line of a rotating shaft of the turbine rotor, whereby a wall surface exposed to external air is formed in a vicinity of a tongue portion that separates the flow passage from a blade side passage through which the exhaust gas flows toward the blades, so that heat in the vicinity of the tongue portion is dissipated from the wall surface.2. The turbine scroll part structure according to claim 1 , wherein the wall surface has an axial length changing in accordance with an amount of the offsetting and the offset amount of the flow passage is gradually decreased toward a distal end of the tongue portion.3. The turbine scroll part structure according to claim 1 , wherein the flow passage is offset by deforming only an inner circumferential side of the spiral shape.4. The turbine scroll part structure according to claim 1 , wherein claim 1 , with reference to a line connecting an axis center of the turbine scroll part and the distal end of the tongue portion claim 1 , the flow passage is offset around the axis center in an amount gradually decreasing ...

Housing structure of exhaust gas turbocharger

A casing treatment 4 including a recirculation passage 41 and a mixing piping 6 are provided. The recirculation passage 41 has a first recirculation opening 42 and a second recirculation opening 43 that are in communication with each other, the first recirculation opening 42 being formed inside a compressor housing 11 of an exhaust gas turbocharger and opening to an air passage 15 upstream of a compressor impeller 3 , the second recirculation opening 43 being formed at the outer circumferential section of the compressor impeller 3 . The mixing pipe 6 opens to the recirculation passage 41 and has a return opening 14 for introducing EGR gas and blow-by gas to the recirculation passage 41.

Compressor, assembling and diassembling device therefor, and assembling and diassembling method therefor

This assembling and disassembling device for a compressor has a substantially cylindrical bundle that is received insertably and removably on an inner circumferential surface of a substantially tubular compressor casing that is mounted horizontally and further includes: a plate-like member that is provided on an axial end portion of the bundle at an opposite side of an insertion direction so as to protrude outward in the radial direction of the bundle and a threaded-rod member that inserts and removes the bundle connected to the plate-like member into and from the compressor casing by being screwed into a threaded hole provided in the plate-like member and being rotated.

Integrated reciprocating primer drive arrangement

A pump assembly includes a centrifugal pump having an intake, a discharge, a pump chamber and an impeller to deliver water from the intake to the discharge. A priming system is fluidly coupled to the pump chamber. A drive assembly includes a drive shaft coupled to the priming system and positioned around an impeller shaft coupled to the impeller for selective rotatable coupling of the impeller shaft and the drive shaft.

Compressor

A compressor is provided with a substantially tubular compressor casing, a substantially circular lid that is provided inside an inner periphery of the compressor casing so as to close off an end surface of the compressor casing, a space that is enclosed by the lid and an inner circumferential surface of the compressor casing so as to accommodate a blade, and seal member that is provided in a circumferential direction on the space side of an outer circumferential surface of the lid, wherein a slit part is provided on the lid, radially inside the outer circumferential surface, where the seal member is provided, so as to extend in the axial direction from the space side of the lid.

Turbocharger which is integrated into the cylinder head of an engine

A turbocharger includes a turbine with a turbine wheel, a compressor with a compressor wheel and a shaft mounted in a bearing unit. The turbine wheel and the compressor wheel are disposed on the shaft. The turbine wheel is disposed in a turbine housing. The compressor wheel is disposed in a compressor housing. The turbocharger is integrated into an aperture or recess of the cylinder head of an engine and the turbine housing is formed integrally in the cylinder head.

SCROLL SHAPE OF CENTRIFUGAL COMPRESSOR

In a scroll shape of a centrifugal compressor, an enlargement rate of a ratio A/R of a cross-sectional area A of a scroll portion to a radius R from an axis L of a compressor impeller to a centroid Pof a cross section of the scroll portion is reduced from a winding start to a winding end of the scroll portion. 1. A scroll shape of a centrifugal compressor which forms a flow path of a fluid such as a gas or air discharged from a diffuser portion arranged on a downstream-side of the compressor impeller of the centrifugal compressor , wherein an enlargement rate of a ratio A/R of a cross-sectional area A of a scroll portion to a radius R from an axis of the compressor impeller to a centroid of a cross section of the scroll portion due to an increase in a scroll angle is reduced from a winding start to a winding end of the scroll portion.2. The scroll shape of a centrifugal compressor according to claim 1 , wherein the ratio A/R is calculated as a sum of ratios Ai/Ri of cross-sectional areas Ai and a constant radius Ri when the cross section of the scroll portion is divided into band-like regions with the constant radius Ri and the cross-sectional area Ai.3. The scroll shape of a centrifugal compressor according to claim 1 , further comprising a velocity decrease region which gradually increases the cross-sectional area of the scroll portion from a tongue portion of the scroll portion to an arbitrary angle in a winding direction of the scroll portion in order to decrease a velocity of the fluid and a velocity increase region which decreases a rate of enlargement of the cross-sectional area from the arbitrary angle to a winding end of the scroll portion to below the rate for the velocity decrease region in order to increase the velocity of the fluid.4. The scroll shape of a centrifugal compressor according to claim 1 , wherein when a distribution of A/R of the scroll cross section is displayed on coordinate axes including a horizontal axis which increases in a rightward ...

Fan

A fan for generating an air current includes a body having an air inlet, and a nozzle connected to the body. The nozzle includes an interior passage for receiving an air flow from the body and an air outlet from which the air flow is emitted from the fan. The interior passage extends about an opening or bore through which air from outside the nozzle is drawn by air emitted from the air outlet. The body includes a duct having an air inlet and an air outlet, an impeller located within the duct for drawing the air flow through the duct, and a motor for driving the impeller. A noise suppression cavity is located beneath the air inlet of the duct. The cavity has an inlet which is located beneath, and is preferably concentric with, the air inlet of the duct.

STEPPED PARTING JOINT ON A TRANSMISSION HOUSING OF A FLUID MACHINE

A divisible housing of a fluid machine for a transmission to be received in the divisible housing is provided. The transmission provided for receiving in the divisible housing includes a large wheel and at least two pinion shafts which are in engagement with the large wheel. The divisible housing includes a first housing element and a second housing element which is connected to the first housing element via a parting joint. The at least two pinion shafts may be received in the parting joint. The parting joint includes a parting joint step, the at least two pinion shafts being receivable in the parting joint on both sides of the parting joint step. 110-. (canceled)11. A divisible housing of a fluid machine for a transmission receivable in the divisible housing and having a large wheel and at least two pinion shafts which are in engagement with the large wheel , the divisible housing comprising:a first housing element; anda second housing element connected to the first housing element via a parting joint,wherein the at least two pinion shafts being receivable in the parting joint,wherein the parting joint includes a parting joint jump, which forms two different horizontal levels in the parting joint, andwherein the at least two pinion shafts are receivable in the parting joint on both sides of the parting joint jump at the two different horizontal levels.12. The divisible housing of a fluid machine as claimed in claim 11 ,wherein the first housing element and the second housing element each include a step corresponding to one another and forming the parting joint jump.13. The divisible housing of a fluid machine as claimed in claim 11 ,wherein the transmission is received in the divisible housing, the at least two pinion shafts being received in the parting joint on both sides of the parting joint jump.14. The divisible housing of a fluid machine as claimed in claim 13 , wherein one axis of rotation of two axes of rotation of the at least two pinion shafts is ...

Celing mounted ventilation fan with illumination

The ceiling mounted ventilation fan with illumination employs a configuration in which a second opening for guiding light from an illumination unit into the room is formed in a lower part of a main housing and in which a air inlet on a fan casing of a fan unit is provided so as to open toward upper part of the main housing. Thus the air inlet of the fan unit opens in a direction opposite to the second opening communicating with inside of the room. As a result, sounds such as operation noises from the fan unit that are transmitted to outside of the fan unit chiefly through the air inlet can be made to resist being transmitted through the second opening into the room, so that the noises can be reduced.

CENTRIFUGAL BLOWING FAN

A centrifugal blowing fan includes a back yoke made from metal, having a substantially bottomed cylindrical portion around a rotating shaft of a motor, an inner surface attached with a magnet of the motor mounted thereon and a flange portion disposed around a periphery of an opening of the cylindrical portion; and a cylindrical impeller made from resin, having a plurality of blades circumferentially arranged, an annular collar portion joined with first ends of the plurality of blades and a doughnut-shaped disk portion joined with second ends of the plurality of blades, wherein the disk portion has at least one fitting, and the flange portion has at least one fitted space receiving the at least one fitting so as to concentrically and fixedly connect the impeller and the back yoke. 1. A centrifugal blowing fan for radially exhausting air axially taken therein , the centrifugal blowing fan comprising:a back yoke made from metal, the back yoke having a substantially bottomed cylindrical portion around a rotating shaft of a motor, an inner surface attached with a magnet of the motor mounted thereon and a flange portion disposed around a periphery of an opening of the cylindrical portion, and the back yoke rotating integrally with the rotating shaft; anda cylindrical impeller made from resin, the impeller having a plurality of blades circumferentially arranged, an annular collar portion joined with first ends of the plurality of blades and a doughnut-shaped disk portion joined with second ends of the plurality of blades,wherein the cylindrical portion of the back yoke has an outer diameter smaller than an inner diameter of the impeller, and the flange portion has an outer diameter substantially same to or slightly larger than an outer diameter of the disk portion of the impeller, andwherein the disk portion of the impeller has at least one fitting, and the flange portion of the back yoke has at least one fitted space receiving the at least one fitting so as to ...

CENTRIFUGAL BLOWER AND VEHICLE AIR CONDITIONER PROVIDED WITH THE SAME

A centrifugal blower includes a centrifugal fan; an electric motor that rotationally drives the centrifugal fan; a fan case that has an air inlet and an air outlet and that internally accommodates the centrifugal fan; and an electric motor case () that has a cylinder () accommodating the electric motor and a flange portion () extending radially outward from the cylinder () and that is fitted to the fan case. The flange portion () is provided with a ring-shaped rib portion () that protrudes from the flange portion (); the ring-shaped rib portion () is provided with a plurality of slits (and ) that extend from the flange portion () in the axial direction of the cylinder (); and the flange portion () between the ring-shaped rib portion () and the cylinder () is inclined in a circumferential direction toward the slits (and ). 1. A centrifugal blower comprising:a centrifugal fan;an electric motor that rotationally drives the centrifugal fan;a fan case that has an air inlet and an air outlet and that internally accommodates the centrifugal fan; andan electric motor case that has a cylinder accommodating the electric motor and a flange portion extending radially outward from the cylinder and that is fitted to the fan case,wherein the flange portion is provided with, in a concentric manner with the cylinder, a ring-shaped rib portion that protrudes from the flange portion;the ring-shaped rib portion is provided with a slit that extends from the flange portion in the axial direction of the cylinder; andthe flange portion between the ring-shaped rib portion and the cylinder is inclined in a circumferential direction toward the slit.2. A centrifugal blower according to claim 1 , wherein an extension end portion of the ring-shaped rib portion is inclined downward from an outer circumference of the extension end portion toward an inner circumference thereof.3. A centrifugal blower according to claim 1 , wherein a predetermined space is formed between the extension end portion of ...

MOTOR-DRIVEN COMPRESSOR

It is an object of the invention to provide a motor-driven compressor being fixable reliably to a vehicle or the like and being capable of reliably protecting elements accommodated in a housing even upon reception of an external force due to a collision by any possibility. 1. A motor-driven compressor comprising:a compression mechanism for compressing fluid;an electric motor for driving the compression mechanism;a motor drive circuit for driving the electric motor; anda housing for accommodating the compression mechanism, the electric motor, and the motor drive circuit, whereina cover for protecting the housing from an external force caused by a collision is fixed to the outside of the housing, andthe cover is arranged via a clearance with respect to the housing, and the external force applied to the cover is absorbed by the clearance.2. The motor-driven compressor according to claim 1 , whereinthe housing includes a plurality of housing portions, andthe cover covers the housing portion that accommodates the motor drive circuit.3. The motor-driven compressor according to claim 1 , whereinthe housing includes a leg portion to be fixed to a vehicle via a fastening device, andthe cover is fixed to the housing via the fastening device.4. The motor-driven compressor according to claim 3 , whereinthe fastening device is a fastening bolt having a head portion,an object for fixation for fixing the motor-driven compressor includes a base portion to be brought into abutment with one end of the leg portion,the cover includes a protecting portion to be arranged via the clearance with respect to the housing, and a mounting portion integrated with the protecting portion and brought into abutment with another end of the leg portion,the base portion is formed with a screw hole which allows the fastening bolt to be screwed in,the leg portion is formed with an insertion hole which allows insertion of the fastening bolt, andthe mounting portion is formed with a through hole which ...

Encapsulated rotor for permanent magnet submersible motor

A rotor for a submersible motor includes a shaft and a hub. The hub is: disposed around the shaft, torsionally connected to the shaft, and made from a magnetically permeable metal or alloy. The rotor further includes permanent magnets disposed around the hub; and a polymer shroud encapsulating the permanent magnets and molded to the hub.

Centrifugal pump

Embodiments of the disclosure include a centrifugal pump assembly including a pump housing defining a cavity and an impeller disposed within the cavity, the impeller being affixed to a shaft. The pump housing includes an inner surface having a geometric pattern configured in increase a turbulence of a fluid flow over the inner surface. The impeller includes one or more blades and a shroud. The inner surface of the pump housing and the shroud of the impeller define a leakage path.

VENTILATING FAN

Disclosed is a ventilating fan including a ventilating fan body provided with a motor, a frame having ventilating air outlets, and fan blades, an adapter and an electric element box. The ventilating air outlets include a top air outlet provided on a top face of the frame of the ventilating fan and a side air outlet provided on a side face of the frame of the ventilating fan which are communicated with each other. The adapter is provided with a raised structure adapted to the ventilating air outlet. With this structure, the height of the ventilating fan is reduced while air volume is ensured, so that the ventilating fan is adapted to be mounted onto various ceilings, and the cost can be saved while mounting of the adapter is simplified. 1. A ventilating fan , comprising:a ventilating fan body provided with a motor, a frame having ventilating air outlets and fan blades;an adapter; andan electric element box,wherein the ventilating air outlets comprise a top air outlet provided on a top face of the frame of the ventilating fan and a side air outlet provided on a side face of the frame of the ventilating fan which are communicated with each other, and the adapter is provided with a raised structure adapted to the ventilating air outlet.2. The ventilating fan according to claim 1 , wherein: the raised structure is formed by enclosing the top air outlet by an upper portion of a fixing section of the adapter and is gradually inclined upward claim 1 , and the height of the raised structure is less than or equal to the height of the electric element box.3. The ventilating fan according to claim 1 , wherein: the raised structure is made of resin material.4. The ventilating fan according to claim 1 , wherein: an engaging structure integrally formed with the frame and engaged with the adapter is provided at a side of the top air outlet closer to the electric element box.5. The ventilating fan according to claim 4 , wherein: the engaging structure is a bending piece provided at ...

Extended Length Cutoff Blower

A blower assembly including a blower housing having a side wall with a first portion extending from the initial cutoff through an angle of at least 45° or more, the first portion having a radius which is substantially constant or which increases at a relatively small rate. The side wall additionally includes a second portion, extending from the end of the first portion to the outlet, which forms a continuous curve with the first portion and has an increasing radius which is increasing at a larger rate and has a rate of increase that is also increasing with housing angle. The shape of the side wall allows a reduction in the overall size of the blower housing for a given size of impeller. 2. The blower assembly of claim 1 , further comprising:the air inlet opening being circular and having an inner diameter dimension that is smaller than an inner diameter dimension of the plurality of blades surrounding the impeller interior.3. The blower assembly of claim 1 , further comprising:the impeller having an axial width dimension that is smaller than an exterior diameter dimension of the impeller.4. The blower assembly of claim 1 , further comprising:the point on the side wall being spaced in the rotation direction from the cutoff by an arc of at most 120°.5. The blower assembly of claim 4 , further comprising:the radial distance of the side wall from the axis of rotation increasing at the rate as the side wall extends in the rotation direction from the point on the side wall through an arc of at least 180°.7. The blower assembly of claim 6 , further comprising:the air inlet opening being circular and having an inner diameter dimension that is smaller than an inner diameter dimension of the plurality of blades surrounding the impeller interior.8. The blower assembly of claim 7 , further comprising:the impeller having an axial width dimension that is smaller than an exterior diameter dimension of the impeller.9. The blower assembly of claim 6 , further comprising:the motor ...

CENTRIFUGAL PUMP AND IMPELLER PROTECTOR FOR CENTRIFUGAL PUMP

The invention relates to a centrifugal pump ()that has a suction-side inlet () and at least one pressure-side outlet (), wherein a rotatably mounted impeller () for pumping a pump medium from the inlet () to the outlet () and an impeller seat () are arranged in the pump housing (). 112345341021082758. A centrifugal pump () comprising a pump housing () that has a suction-side inlet () and at least one pressure-side outlet () , wherein a rotatably mounted impeller () for pumping a pump medium from the inlet () to the outlet () and an impeller seat () are arranged in the pump housing () , characterized in that the impeller seat () is formed in a ring-shaped impeller protector () which is made from a corrosion-resistant material and is received in the pump housing () , wherein an insertion region () of the impeller () is radially surrounded by the impeller protector ().258. The centrifugal pump according to claim 1 , characterized in that the impeller () is radially and axially guided in the impeller protector ().389. The centrifugal pump according to claim 1 , characterized in that the impeller protector () has a radially inward protruding collar ().4812132. The centrifugal claim 1 , pump according to claim 1 , characterized in that the impeller protector () rests with a front side () against an end stop () of the pump housing ().512823. The centrifugal pump according to claim 4 , characterized in that the front side () of the impeller protector () is chamfered or rounded at Least at one outer edge ().68. The centrifugal pump according to claim 1 , characterized in that the impeller protector () comprises a plastic material claim 1 , in particular POM or PTFE.71582. The centrifugal pump according to claim 1 , characterized in that a radial seal () is arranged between the impeller protector () and the pump housing ().815161728. The centrifugal pump according to claim 7 , characterized in that the radial seal () has a seating tip () which is inclined with respect to an ...

ELECTRONIC DEVICE

A centrifugal fan includes a housing and a fan body. The housing includes an upper cover and a lower cover. The fan body is disposed in the housing and includes a hub and at least a blade. The hub is pivotally connected to the lower cover. The blade includes an air intake portion and an air exhaust portion. The air intake portion is connected to the peripheral edge of the hub. The air exhaust portion is connected to the air intake portion and is disposed between the upper cover and the lower cover. The width of the air exhaust portion is gradually reduced along a direction away from the air intake portion. 1. A centrifugal fan , comprising:a casing including a upper cover and a lower cover; and a fan hub pivotally connected to the lower cover; and', 'a fan blade, wherein the fan blade includes an air intake portion and an air exhaust portion, the air intake portion is connected to an outer edge of the fan hub, the air exhaust portion is connected to the air intake portion and disposed between the upper cover and the lower cover, and the width of the air exhaust portion is reduced along a direction away from the air intake portion., 'a fan body disposed in the casing, wherein the fan body includes2. The centrifugal fan according to claim 1 , wherein a cross section of the air exhaust portion vertical to the upper cover and the lower cover includes an upper contour line and a lower contour line claim 1 , the upper contour line includes a upper close point relative to the upper cover claim 1 , and the lower contour line includes a lower close point relative to the lower cover.3. The centrifugal fan according to claim 2 , wherein the vertical distance from the upper contour line to the upper cover is increased along a direction away from the upper close point claim 2 , and the vertical distance of the lower contour line relative to the lower cover is increased along a direction away from the lower close point.4. The centrifugal fan according to claim 3 , wherein the ...

Turbocharger and method of producing thereof

A turbocharger includes a compressor housing, a bearing housing and a back plate. A discharge scroll chamber has such a shape that a cross-sectional area thereof gradually increases toward a discharge port in a circumferential direction. The compressor housing includes a scroll piece assembled to a shroud piece. The scroll piece includes a suction port-forming portion, a suction-side concave surface and a scroll outer periphery. The shroud piece includes a shroud fit-in portion, an inner peripheral concave surface, a shroud surface and a diffuser surface. The back plate includes a facing surface, an outer peripheral annular fit-in portion and an outer peripheral concave surface. The outer peripheral concave surface has such a shape that a cross sectional shape thereof formed by a plane including a rotation axis of an impeller gradually changes in the circumferential direction.

Centrifugal Fan

A centrifugal fan includes a fan frame, a motor, an impeller and an axial positioning member. The fan frame includes a base plate portion, a cover plate portion, and a lateral wall portion arranged between the base plate portion and the cover plate portion. The cover plate portion includes an air inlet, and the lateral wall portion includes an air outlet. The motor is received in the fan frame. The impeller is rotatably coupled with the motor. The axial positioning member is arranged along a path surrounding the air inlet of the fan frame. The axial positioning member includes a coupling face and an abutting face opposite to the coupling face. The coupling face is coupled with the cover plate portion of the fan frame. The abutting face is spaced from the coupling face. 1. A centrifugal fan comprising:a fan frame comprising a base plate portion, a cover plate portion, and a lateral wall portion arranged between the base plate portion and the cover plate portion, wherein the cover plate portion comprises an air inlet, and wherein the lateral wall portion comprises an air outlet;a motor received in the fan frame;an impeller rotatably coupled with the motor; andat least one axial positioning member arranged along a path surrounding the air inlet of the fan frame, wherein each of the at least one axial positioning member comprises a coupling face and an abutting face opposite to the coupling face, wherein the coupling face is coupled with the cover plate portion of the fan frame, and wherein the abutting face is spaced from the coupling face.2. The centrifugal fan as claimed in claim 1 , wherein the fan frame has a first height in an axial direction of the fan frame claim 1 , wherein each of the at least one axial positioning member has a second height in the axial direction of the fan frame claim 1 , and wherein the second height is 20% to 80% of the first height.3. The centrifugal fan as claimed in claim 2 , wherein the second height is 40% to 60% of the first height.4 ...

BLOWER ASSEMBLY FOR ELECTRONIC DEVICE

In one embodiment a blower comprises a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet, an impeller disposed in the case and rotatable about an axis of rotation extending between the first surface and the second surface. Portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case, and the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet. 1. A blower , comprising:a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet;an impeller disposed in the case and rotatable about an axis of rotation extending between the first surface and the second surface;wherein portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case; andwherein the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet.2. The blower of claim 1 , wherein:the impeller is to rotate about an axis of rotation perpendicular to a first plane; andthe air outlet defines an aperture disposed in a second plane, substantially perpendicular to the first plane.3. The blower of claim 1 , wherein the impeller comprises blades constructed from a porous material.4. The blower of claim 2 , wherein:the aperture is disposed within 5 millimeters of a plane perpendicular to the first plane which includes the axis of rotation.5. The blower of claim 1 , wherein:portions of the impeller are disposed at a second distance from the axis of rotation; andthe ...

BLOWER FILTER DEVICE, RESPIRATORY PROTECTION DEVICE, OPERATIONAL INFRASTRUCTURE AND METHOD

A blower filter device includes a blower unit that draws and delivers ambient air; a filter unit that filters a harmful substance, or a filter coupling to couple and uncouple the filter unit. A control unit is configured to actuate the blower unit, to determine an operating state of the blower filter device and/or other respirator system components and/or a respirator system () as a whole and to generate an alarm if a determined operating state indicates a disturbance. An output unit is configured to receive the alarm from the control unit and to output the alarm. A communication interface () is configured for wireless network integration and to transmit the alarm via the network (). A respirator system () with such a blower filter device, an operational infrastructure () with such a respirator system, as well as a method of blower filter operation and operational infrastructure monitoring are provided. 1. A blower filter device for a respirator system , the blower filter device comprising:a blower unit configured to draw in and deliver ambient air;a filter unit configured to filter at least one harmful substance out of the ambient air drawn in and delivered, or a filter coupling for coupling and uncoupling such a filter unit,a control unit configured to actuate the blower unit, to determine an operating state of the blower filter device or to determine an operating state of other components of the respirator system or to determine an operating state of the respirator system as a whole or to determine an operating state of any combination of the blower filter device other components of the respirator system and the respirator system as a whole and to generate an alarm based on a determined operating state indicating a disturbance;an output unit configured to receive the alarm from the control unit and to output the alarm;a communication interface configured to be wirelessly integrated in a network and to transmit the alarm to other participants of the network.2. A ...

ROTOR ASSEMBLY

The disclosure relates to a high-speed radial fan and to a rotor assembly () for a high-speed radial fan, comprising a bearing tube () which is axially open in the interior and in which a shaft () carrying a fan wheel () is mounted with a rotor (), wherein the rotor () of the rotor assembly () is mounted in a cylindrical separating can (). 1102040305050103. A rotor assembly () for a high-speed radial fan , comprising a bearing tube () which is axially open in the interior and in which a shaft () carrying a fan wheel () is mounted with a rotor () , wherein the rotor () of the rotor assembly () is mounted in a cylindrical separating can ().211023. The radial fan () with a rotor assembly () according to claim 1 , characterized in that the radial fan has a fan housing () claim 1 , which is formed as a single piece with the separating can ().31204050403. The radial fan () according to claim 1 , characterized in that the bearing tube () with the shaft () and the rotor () mounted on the shaft () is arranged in the separating can () claim 1 , which is closed around the circumference.41322a. The radial fan () according to claim 2 , characterized in that the separating can () extends away from a substantially flat housing base plate () of the fan housing () in the axial direction.5150515033a. The radial fan () according to claim 1 , characterized in that an air gap is formed between the rotor () and a stator () surrounding the rotor () claim 1 , and the separating can () with its cylindrical separating can walls () is arranged within the air gap.613. The radial fan () according to claim 1 , characterized in that the material of the separating can () is an isolator or has a contact resistance greater than 10 Ohm.7140242025203050. The radial fan () according to claim 1 , characterized in that the shaft () claim 1 , on a first bearing () arranged in the bearing tube () and a second bearing () arranged in the bearing tube () spaced apart in the axial direction as relates to the ...

Parallel Twin-Impeller Compressor Having Swirl-Imparting Device For One Impeller

An turbocharger includes a parallel twin-impeller compressor and separate inlets into the two impellers. A first or outboard impeller receives one stream of inlet air and a second or inboard impeller receives its own separate stream of inlet air by way of a generally annular inlet volute surrounding the inlet to the second impeller. Air is fed from the inlet volute radially inwardly through a feed passage to the inlet to the second impeller. A plurality of inlet guide vanes are located in the feed passage for the second impeller, the inlet guide vanes creating a swirling air stream into the second impeller. Introduction of swirl to the second impeller alters the flow distribution between the impellers and affects the stability of the overall stage.

METHOD AND APPARATUS FOR COMPOSITION BASED COMPRESSOR CONTROL AND PERFORMANCE MONITORING

A method and apparatus controls a compressor, where the compressor inlet gas may contain water and/or non-aqueous liquid. The method includes the steps of measuring temperature at the compressor inlet and/or outlet side, measuring pressure at the compressor inlet and outlet side in order to determine a compressor pressure ratio, measuring fluid mixture density at the compressor inlet and/or outlet side, measuring individual volume fractions of gas, water and non-aqueous liquid at the compressor inlet and/or outlet side, measuring fluid velocity at the compressor inlet and/or outlet side, and determining individual flow rates of gas, water and non-aqueous liquid on the basis of the measured individual volume fractions of gas, water and non aqueous liquid and the fluid velocity at the compressor inlet and/or outlet side. 1. A method for surge protection of a compressor with an inlet and outlet side , wherein an inlet gas flow or stream of the compressor comprises time-varying amounts of water and/or non-aqueous liquid , by continuously or discontinuously measuring and/or determining various parameters of the fluids passing through said compressor , the method comprising the steps of:a) measuring temperature at the compressor inlet and/or outlet side,b) measuring pressure at the compressor inlet and outlet sides in order to determine a compressor pressure ratio,c) measuring fluid mixture density at the compressor inlet and/or outlet side,d) measuring individual volume fractions of gas, water and non-aqueous liquid at the compressor inlet and/or outlet side,e) measuring fluid velocity at the compressor inlet and/or outlet side,f) determining individual flow rates of gas, water and non-aqueous liquid on the basis of the measured individual volume fractions of gas, water and non-aqueous liquid and the fluid velocity at the compressor inlet and/or outlet side,g) based on the determined individual flow rates of gas, water and non-aqueous liquid, determining an actual fluid ...

BALANCE PISTON WITH A SEALING MEMBER

A balance piston for a compressor is provided. The balance piston may include an annular body and a seal extending from an axial surface of the annular body. The annular body may be configured to be disposed about and coupled with a rotary shaft of the compressor. The seal may be configured to form a sealing engagement with at least one component of the compressor to prevent a flow of a process fluid from an impeller of the compressor to a seal cavity of the compressor. 1. A balance piston for a compressor , comprising:an annular body configured to be disposed about and coupled with a rotary shaft of the compressor; anda seal extending from an axial surface of the annular body and configured to form a sealing engagement with at least one component of the compressor to prevent a flow of a process fluid from an impeller of the compressor to a seal cavity of the compressor.2. The balance piston of claim 1 , wherein the annular body is integral with an impeller of the compressor.3. The balance piston of claim 1 , wherein the seal comprises a protrusion extending from the axial surface of the annular body.4. The balance piston of claim 3 , wherein the protrusion is configured to form a sealing engagement with a shaft seal assembly of the compressor to prevent the flow of the process fluid from the impeller to the seal cavity.5. The compressor of claim 4 , wherein the protrusion is configured to form the sealing engagement with a labyrinth seal of the shaft seal assembly.6. The compressor of claim 5 , wherein the protrusion and the labyrinth seal define a tortuous path therebetween.7. The compressor of claim 3 , wherein the protrusion extends annularly about the axial surface of the annular body.8. The compressor of claim 3 , wherein an inner radial surface and an outer radial surface of the protrusion are substantially parallel with one another.9. The compressor of claim 3 , wherein an inner radial surface of the protrusion is arcuate.10. The compressor of claim 3 , ...

Turbocharger

A turbocharger includes: an annular diffuser flow passage formed by two opposed surfaces of a compressor housing and a bearing housing; and a seal plate located inside of the diffuser flow passage in a radial direction, and disposed to be opposed to a back surface of a compressor wheel. A gap in the radial direction is formed between a radially inside end of the opposed surface of the bearing housing that forms the diffuser flow passage and an outer peripheral edge of the compressor wheel. The seal plate has a larger diameter than that of the compressor wheel. A protrusion, which extends more to the compressor housing side than does a region opposed to a back surface of the compressor wheel, is provided in a region of the seal plate facing the gap.

MULTI-VOLUTE SIROCCO FAN

Disclosed is a multi-volute sirocco fan (multiblade fan). The present invention relates to a multi-volute sirocco fan configured to discharge fluid into several directions while using one motor and one fan. The sirocco fan according to the present invention comprises: a driving motor; a fan connected to a rotation shaft of the driving motor to thus be rotated therewith, the fan having a plurality of vanes arranged and installed in a cylindrical shape along the circumferential direction thereof; and at least two stacked volutes in the center of which the fan is arranged and installed and which guide the fluid while the cross-sectional area formed by the upper and lower surfaces, side surfaces thereof and the outer circumferential surface of the fan is linearly increased. 1. A multi-volute sirocco fan comprising:a driving motor;a fan connected to a rotation shaft of the driving motor to be rotated therewith, and having a plurality of vanes arranged and installed in a cylindrical shape along a circumferential direction thereof; andat least two stacked volutes in a center of which the fan is arranged and installed and which guide a fluid while a cross-sectional area thereof formed by upper and lower surfaces, side surfaces thereof and an outer circumferential surface of the fan is linearly increased.2. The multi-volute sirocco fan of claim 1 , wherein a lower surface of a lowermost one of the volutes is closed.3. The multi-volute sirocco fan of claim 1 , wherein a rounded guide for guiding the fluid is provided at an end of an upper surface central introduction port of an uppermost one of the volutes.4. The multi-volute sirocco fan of claim 1 , wherein the volutes are stacked claim 1 , and then contact surfaces thereof are welded and fixed.5. The multi-volute sirocco fan of claim 1 , wherein a plurality of diameter reduction protruding portions of which diameters are reduced and which protrude are provided at an upper surface central introduction port of a lower one of ...

Blower for breathing apparatus

A blower for a breathing apparatus has a diffuser for increasing static pressure and/or reducing noise and/or mitigating pressure instabilities and/or managing reverse flow.

WATER PUMP BEARING WITH ACTIVE CONDENSATE PURGING SYSTEM

A coolant pump with an integrated shaft bearing (ISB) assembly is provided. The ISB has a bearing housing, and at least one bearing located therein supports a shaft. A bearing seal is connected to the bearing housing at a first axial end and contacts the shaft, and a vent cover is also located at the first axial end to define a vent space between it and the bearing seal. A seal assembly is located between the shaft and the vent cover. A vent insert is located in the vent space and connected for rotation with the shaft. Venting air enters via a vent space inlet connected to the vent space, and is exhausted by a vent space outlet. A generally annular collection cavity is located inside the vent space and connected to the vent space outlet. This allows for active purging of condensate or coolant leakage to protect the bearing. 1. A coolant pump comprising:a pump housing; a bearing housing;', 'at least one bearing located in the bearing housing that supports a shaft that extends through the bearing housing;', 'a bearing seal connected to the bearing housing at a first axial end and contacting the shaft;', 'a vent cover located at the first axial end of the bearing housing, the vent cover extends toward the shaft and defines a vent space between the bearing seal and the vent cover;', 'a seal assembly located between the shaft and the vent cover;', 'a vent insert having a radially extending surface with first and second axial sides located in the vent space and connected for rotation with the shaft;', 'a vent space inlet connected to the vent space, and a vent space outlet connected to the vent space; and', 'a generally annular collection cavity located inside the vent space and connected to the vent space outlet;, 'an integrated shaft bearing assembly located in the pump housing, includingwherein the pump includes an inlet opening in communication with the vent space inlet and an outlet opening in communication with the vent space outlet.2. The coolant pump of claim 1 , ...

BLOWER ASSEMBLY FOR ELECTRONIC DEVICE

In one embodiment a blower comprises a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet, an impeller disposed in the case and rotatable about an axis of rotation extending through a hub, wherein the impeller comprises a plurality of blades which define a gap with the hub, wherein portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case, wherein the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet, and a feature disposed in the gap to impede recirculation of air in the case. 1. A blower , comprising:a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet;an impeller disposed in the case and rotatable about an axis of rotation extending through a hub, wherein the impeller comprises a plurality of blades which define a gap with the hub;wherein portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case;wherein the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet; anda feature disposed in the gap to impede recirculation of air in the case.2. The blower of claim 1 , wherein:the feature comprises an arcuate member disposed within portions of the gap.3. The blower of claim 1 , wherein the feature is formed integrally with at least one of the first surface or the second surface.4. The blower of claim 1 , wherein:the impeller blades are formed from at least one of a rigid material or a porous ...

WET ROTOR PUMP COMPRISING POWER ELECTRONICS

A wet rotor pump with an axial flux motor that includes a stator, a containment shell, and a rotor. The stator and the containment shell are arranged in a dry zone while the rotor on an impeller is arranged in a wet zone. The wet rotor pump further has an inlet line for a fluid to be pumped by the impeller, said inlet line extending through the stator and the containment shell in an axial direction, and power electronics for controlling the stator, said power electronics being arranged within the space delimited by the stator and the containment shell. 1. A wet rotor pump comprising an axial flux motor having a stator , a containment shell , and a rotor , wherein the stator and the containment shell are disposed in a dry zone and the rotor on an impeller is disposed in a wet zone , comprising an inlet line for a fluid to be pumped by the impeller , wherein the inlet line extends through the stator and the containment shell in the axial direction , and comprising power electronics for controlling the stator , wherein the power electronics are disposed in the interior of the space circumscribed between the stator and the containment shell.2. The wet rotor pump according to claim 1 , wherein the power electronics are disposed on an annular printed circuit board claim 1 , and wherein the inlet line extends through the printed circuit board in the axial direction.3. The wet rotor pump according to claim 1 , wherein the containment shell comprises a disk claim 1 , wherein the disk has a central opening claim 1 , on which an inlet connecting piece for the inflow of the fluid is formed claim 1 , wherein the disk has recesses claim 1 , along the periphery thereof claim 1 , for accommodating the air-gap side ends of the stator teeth claim 1 , wherein an outer radius of the printed circuit board is limited by the recesses and an inner radius of the printed circuit board is limited by a wall of the inlet connecting piece claim 1 , which is formed by the containment shell and ...

AIR-CONDITIONING INDOOR MACHINE

A wall-mounted air-conditioning indoor machine includes a cross-flow fan, a casing and a heat exchanger. The casing includes a stabilizer and a rear guider. The stabilizer is divided into top and bottom parts with a tongue part in between. The stabilizer, rear guider, and cross-flow fan are arranged so that three expressions, (θa−θ)><(θb−θ)<, and θb≧θa, are satisfied. A reference angle (θ) is formed by a fan-referencing horizontal line and a scroll-referencing line. A first angle (θa) is formed by the fan-referencing horizontal line and a first straight line connecting a fan center point and a front-surface-side closest point of the stabilizer. A second angle (θb) is formed by the fan-referencing horizontal line and a second straight line connecting the fan center point and a back-surface-side closest point of the rear guider. 1. A wall-mounted air-conditioning indoor machine , comprising:a cross-flow fan arranged and configured to generate an air flow, the cross-flow fan having a plurality of blades aligned along a circumference thereof;a casing including a stabilizer on a front-surface side and a rear guider on a back-surface side, the stabilizer being divided into a top part and a bottom part with a tongue part in between, a blown air channel being formed in the casing by the stabilizer and the rear guider, and the blown air channel having a scroll shape through which air flows from the cross-flow fan to a blow-out port; anda heat exchanger including a front-surface-side heat exchange section and a back-surface-side heat exchange section, the heat exchanger being arranged on an airflow-upstream side of the cross-flow fan; a horizontal line through a fan center point, which is a rotational center of the cross-flow fan, being a fan-referencing horizontal line,', 'a line designated as a scroll-referencing line being a straight line, which of any straight line tangent to a circle connecting outer ends of the plurality of fan blades of the cross-flow fan and adjoining ...

FAN, MOLDING DIE, AND FLUID FEEDER

A fan includes a plurality of blade portions arranged spaced apart from each other in a circumferential direction, each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of the pressure surface. The plurality of blade portions include a first blade portion and a second blade portion different from each other in at least one of an outer peripheral blade tip angle and an inner peripheral blade tip angle, and are provided such that a discrepancy angle is equal among a plurality of the blade portion. 1. A fan comprising a plurality of blade portions arranged spaced apart from each other in a circumferential direction , each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of said pressure surface , whereinwhen cut along a plane orthogonal to a rotation axis of the fan, said blade portion has an inner edge portion at which a center line between said pressure surface and said suction surface intersects an inner peripheral-side blade tip, and an outer edge portion at which the center line intersects an outer peripheral-side blade tip,as the fan is rotated, a fluid flow is produced on said blade surface to flow between said inner edge portion and said outer edge portion,when an angle between a straight line passing through a rotational center of the fan and said outer edge portion and a tangent of said center line at said outer edge portion is defined as an outer peripheral blade tip angle, an angle between a straight line passing through the rotational center of the fan and said inner edge portion and a tangent of said center line at said inner edge portion is defined as an inner peripheral blade tip angle, and an angle between a chord line in contact with the inner peripheral-side and outer peripheral-side blade tips on said pressure surface side, ...

CENTRIFUGAL FAN

A centrifugal fan includes a fan frame and a fan impeller received in the fan frame. The fan frame has at least one air inlet and at least one air outlet respectively formed on two sides of the fan frame. The fan impeller has a hub, an extension section outward extending from the hub and multiple blades disposed on the extension section. Each blade has a front end and a rear end. The rear ends of the blades are annularly arranged to together define a virtual geometrical configuration. A flow guide space is defined between the virtual geometrical configuration and the hub. A chord length is defined between the front and rear ends of the blade. The flow guide space has a width larger than or equal to the chord length so as to thin the centrifugal fan and enhance the performance thereof. 1. A centrifugal fan comprising:a fan frame, an upper side and a lower side of the fan frame being closed, the fan frame having an internal receiving space, the fan frame having at least one air inlet and at least one air outlet in communication with the receiving space, the air inlet and the air outlet being respectively formed on one side of the fan frame and another side of the fan frame; anda fan impeller received in the receiving space, the fan impeller having multiple blades, an extension section and a hub, the extension section outward extending from an outer circumference of the hub, the blades being disposed on the extension section in a direction away from the hub, each blade having a front end and a rear end, the rear ends of the blades being annularly arranged to together define a virtual geometrical configuration, a flow guide space being defined between the virtual geometrical configuration and the hub, a chord length being defined between the front end and the rear end of the blade, the flow guide space having a width larger than or equal to the chord length of the blade.2. The centrifugal fan as claimed in claim 1 , wherein the fan frame further has a cover board claim ...

TURBOCHARGER

A turbocharger includes a compressor housing including a scroll chamber, and a seal plate assembled to the compressor housing. The compressor housing and the seal plate define an intake passage. The seal plate includes a plate-side connecting portion in contact with the compressor housing. The radius of curvature of a wall surface of the scroll chamber of the compressor housing, in a section including a compressor rotational axis, is increased in a direction toward an outlet located on the downstream side of the scroll chamber in an intake air flow direction. The plate-side connecting portion protrudes in a direction along the compressor rotational axis. The radius of curvature of an inner surface of the seal plate continuous with the scroll chamber of the intake passage, in the section including the compressor rotational axis, is increased in the direction toward the outlet of the scroll chamber. 1a compressor housing including a scroll chamber; anda seal plate assembled to the compressor housing,the compressor housing and the seal plate defining an intake passage,the seal plate including a plate-side connecting portion in contact with the compressor housing,a radius of curvature of a wall surface of the scroll chamber of the compressor housing, in a section including a compressor rotational axis, being increased in a direction toward an outlet located on a downstream side of the scroll chamber in an intake air flow direction,the plate-side connecting portion protruding in a direction along the compressor rotational axis, anda radius of curvature of an inner surface of the seal plate continuous with the scroll chamber of the intake passage, in the section including the compressor rotational axis, being increased in the direction toward the outlet of the scroll chamber.. A turbocharger comprising: The disclosure of Japanese Patent Application No. 2014-139301 filed on Jul. 7, 2014 including the specification, drawings and abstract is incorporated herein by reference ...

METHOD FOR ASSEMBLING COMPRESSOR, AND BUNDLE GUIDE DEVICE

A method for assembling a compressor comprises: a bundle arrangement step in which a bundle is arranged behind the opening of a casing in the insertion direction; a first insertion step in which the front end of the bundle is inserted into the casing by moving the bundle by means of both an outside traveling device and an intermediate traveling device; and a second insertion step in which the intermediate traveling device is removed from the bundle and the bundle is inserted further inward into the casing by moving the bundle by means of both an inside traveling device and the outside traveling device. 1. A method for assembling a compressor including a bundle having a rotor therein , a casing into which the bundle is inserted , and an inside traveling device supporting the front end of the bundle in the direction of the insertion into the casing and capable of traveling in the insertion direction on the inner peripheral surface of the casing , and an outside traveling device supporting the rear end of the bundle in the insertion direction and capable of traveling in the insertion direction on a base surface disposed outside the casing and an intermediate traveling device supporting the intermediate portion of the bundle between the inside traveling device and the outside traveling device in the insertion direction and capable of traveling on the base surface being removable from the compressor , comprising:a bundle arrangement step in which the bundle is arranged behind an opening of the casing in the insertion direction;a first insertion step in which the front end of the bundle is inserted into the casing by moving the bundle by means of both the outside traveling device and the intermediate traveling device; anda second insertion step in which the intermediate traveling device is removed from the bundle and the bundle is inserted further inward into the casing by moving the bundle by means of both the inside traveling device and the outside traveling device.2. ...

WASHING MACHINE

A washing machine includes a tub, a drum, a nozzle, a pump for circulating water from the tub, and circulation pipes for guiding water. The pump includes a pump motor, an impeller, and a pump housing including first and second circulation ports. The pump housing includes a rotating water current guide part and a biased water current guide part on an inner circumferential surface. The rotating water current guide part extends in a rotation direction of the impeller from a cut-off point that braches water into a first flow running along the rotation direction and a second flow running toward the first circulation port, and guides the first flow to the second circulation port. The biased water current guide part extends from the cut-off point to the first circulation port with an angle greater than 180° relative to the rotating water current guide part, and guides the second flow. 1. A washing machine comprising:a tub configured to receive water;a drum rotatably disposed in the tub and configured to receive laundry;a first nozzle and a second nozzle that are configured to spray water into the drum;a pump configured to circulate water discharged from the tub, the pump comprising a first circulation port and a second circulation port that are configured to discharge water;a first circulation pipe configured to guide, to the first nozzle, water discharged through the first circulation port; anda second circulation pipe configured to guide, to the second nozzle, water discharged through the second circulation port, a pump motor configured to generate a torque,', 'an impeller configured to be rotated by the torque to thereby generate a water current, and', 'a pump housing that defines a housing space accommodating the impeller, the pump housing comprising the first circulation port in communication with the housing space, the second circulation port in communication with the housing space, and a water introducing port configured to guide, to the housing space, water ...

SHROUDED FAN IMPELLER WITH REDUCED COVER OVERLAP

The described embodiments relate to improving efficiency of a low-profile cooling fan. In one embodiment, an impeller of the cooling fan includes a shroud which covers a central portion of the impeller, thereby allowing a central inlet portion of the blades to have an increased fan blade height when compared to a cooling fan constrained by minimum part tolerances between the fan blades and a portion of the fan housing. In some embodiments, the impeller includes splitter blades that can improve performance of the low-profile cooling fan. 1. A fan comprising:a cover having a first cover plate and a second cover plate vertically separated to define an interior fan region between the first cover plate and the second cover plate; and a central hub,', 'a plurality of blades extending from an interior edge of each blade coupled with the central hub to an exterior edge of each blade, wherein each blade of the plurality of blades is characterized by a first edge proximate the first cover plate and a second edge opposite the first edge, and wherein the exterior edge of each blade of the plurality of blades at least partially extends within the interior fan region, and', 'a shroud coupled with the plurality of blades along the second edge of each blade of the plurality of blades., 'an impeller comprising2. The fan of claim 1 , wherein the shroud is characterized by an interior edge and an exterior edge extending towards an outer edge of the second cover plate claim 1 , wherein the exterior edge of the shroud is separated from the outer edge of the second cover plate by a gap length.3. The fan of claim 2 , wherein a ratio of the gap length to a diameter of the impeller measured to the exterior edges of the plurality of blades is less than 0.01.4. The fan of claim 2 , wherein the shroud defines a lip extending across the gap length and past an exterior edge of the second cover plate claim 2 , and wherein an outer diameter of the shroud is less than an outer diameter defined by ...

BOSS THERMAL SEAL

Systems and methods for thermal seals are described herein. A thermal seal may comprise a first metallic plate having a first inner surface and a first outer surface, a second metallic plate having a second inner surface and a second outer surface, the second metallic plate being oriented substantially parallel to the first metallic plate such that the first inner surface and the second inner surface are separated by a gap, and a thermal wool having a plate portion in contact with the first inner surface and the second inner surface, the plate portion filling a void between the first inner surface and the second inner surface, and having a shoulder portion extending from a perimeter of the plate portion, the shoulder portion extending outward from between the first metallic plate and the second metallic plate. 1. A thermal seal comprising:a first metallic plate having a first inner surface and a first outer surface;a second metallic plate having a second inner surface and a second outer surface, the second metallic plate being oriented substantially parallel to the first metallic plate such that the first inner surface and the second inner surface are separated by a gap; anda thermal wool having a plate portion in contact with the first inner surface and the second inner surface, the plate portion filling a void between the first inner surface and the second inner surface, and having a shoulder portion extending from a perimeter of the plate portion, the shoulder portion extending outward from between the first metallic plate and the second metallic plate.2. The thermal seal of claim 1 , wherein the shoulder portion bends in a direction perpendicular to the plate portion claim 1 , the shoulder portion configured to thermally seal at least a portion of an adjacent component.3. The thermal seal of claim 1 , wherein an aperture is disposed in the thermal seal claim 1 , the aperture having a centerline axis being substantially perpendicular to the first metallic plate ...

FURNACE SUBASSEMBLY, FURNACE BLOWER AND ASSOCIATED METHOD

A furnace blower assembly includes a blower housing a blower and a motor. The blower is positioned within the housing and is adapted to rotate relative to the housing. The motor is coupled to the blower. The housing defines an outlet having an external periphery and an internal periphery. The external periphery or the internal periphery of the outlet is adapted to be fitted to a portion of the external periphery or the internal periphery of the duct. The outlet defines a longitudinal axis. The outlet has a peripheral edge and a protrusion extending outwardly from the external periphery or the internal periphery of the outlet. The protrusion is spaced from the peripheral edge of the outlet and is adapted to abut the peripheral edge of the duct. 1. A furnace blower assembly for cooperation with a duct having an interior periphery and an exterior periphery thereof and defining a peripheral edge thereof , said furnace blower assembly comprising:a blower housing;a blower positioned at least partially within said housing, said blower being adapted to rotate relative to said housing about a blower axis; anda motor operatively coupled to said blower, said housing defining an outlet thereof, the outlet having an external periphery thereof and an internal periphery thereof, a portion of one of the external periphery and the internal periphery of the outlet adapted to be at least fitted to a portion of one of the external periphery and the internal periphery of the duct, the outlet defining a longitudinal axis thereof, the outlet defining a peripheral edge thereof, the outlet defining a protrusion extending outwardly from one of the external periphery and the internal periphery of the outlet, said protrusion spaced from the peripheral edge of the outlet, said protrusion adapted to abut the peripheral edge of the duct.2. The furnace blower assembly as set forth in :wherein a portion of the internal periphery of the outlet is adapted to be fitted to a portion of the external ...

Shaft Seal

A shaft seal for an exhaust fan. The seal limits leakage from within an exhaust fan housing around an exhaust fan drive shaft that extends between a rotational power source exterior to the exhaust fan housing and a position within the exhaust fan housing. The seal comprises a plenum generally positioned about the exhaust fan drive shaft at the point where the shaft extends into the fan housing; an auxiliary blower comprising a housing, an internal blade driven by an auxiliary blower drive shaft, and an auxiliary blower drive to rotate the drive shaft where the auxiliary blower drive is operatively associated with the rotational power source such that operation of the rotational power sources causes a rotation of the exhaust fan drive shaft and the auxiliary blower drive shaft; and a duct fluidly connecting the auxiliary blower housing to the plenum. 117-. (canceled)18. A shaft seal for an exhaust fan , the shaft seal for limiting the leakage of a fluid from within an exhaust fan housing around an exhaust fan drive shaft that extends between a position exterior to the exhaust fan housing and a position within the exhaust fan housing , the shaft seal comprising:a plenum generally positioned about the exhaust fan drive shaft at the point where the exhaust fan drive shaft extends into the exhaust fan housing;an auxiliary blower comprising an auxiliary blower housing, an internal auxiliary blower blade or impeller driven by an auxiliary blower drive shaft, and an auxiliary blower drive to rotate the auxiliary blower drive shaft, said auxiliary blower drive comprising a first pulley mounted to said auxiliary blower drive shaft, said first pulley rotated by a belt driven by a second pulley mounted to either the exhaust fan drive shaft or to a rotating shaft of an exhaust fan motor; anda duct fluidly connecting said auxiliary blower housing to said plenum,said auxiliary blower mounted upon a track such that the position of said first pulley relative to said second pulley ...

ELECTRIC PUMP

At an electric pump, a first gasket is interposed between a stator and a motor housing, and a supporting member, and a second gasket is interposed between the supporting member and a substrate housing. Further, the electric pump has a first snap-fit structure that assembles the stator to the supporting member, a second snap-fit structure that assembles the motor housing the supporting member, and a third snap-fit structure that assembles the substrate housing to the supporting member. 1. An electric pump comprising:an impeller;a motor section having a rotor that is fixed to the impeller, and a stator that is provided at a radial direction outer side of the rotor;a pump housing having a pump chamber that accommodates the impeller;a motor housing having an inner tube portion that accommodates the rotor at an inner side, and an outer tube portion that is formed at a radial direction outer side of the inner tube portion and accommodates the stator between the inner tube portion and the outer tube portion;a supporting member that is disposed at a side of the motor housing which is opposite the pump housing;a circuit board that is disposed at a side of the supporting member which is opposite the motor housing;a substrate housing that is disposed at the side of the supporting member which is opposite the motor housing, and that accommodates the circuit board;a first gasket that is interposed between the stator and the motor housing, and the supporting member;a second gasket that is interposed between the supporting member and the substrate housing;a first snap-fit structure having a first anchoring portion that is formed at the stator, and a first elastic piece that is formed at the supporting member and has a first anchored portion that is anchored at the first anchoring portion;a second snap-fit structure having a second anchoring portion that is formed at the motor housing, and a second elastic piece that is formed at the supporting member and has a second anchored ...

PUMP WITH HOUSING HAVING INTERNAL GROOVES

A pump includes an axial inducer. The axial inducer includes a housing that has an internal surface that defines an axial fluid passage. A rotor is disposed about a central axis in the fluid passage. The rotor includes at least one blade that defines at least one blade tip. The internal surface of the housing defines a plurality of grooves adjacent the at least one blade tip. The grooves are elongated in a circumferential direction.

Centrifugal impeller and centrifugal fan comprising the same

A centrifugal impeller including a wheel cover, a wheel disc, and a plurality of blades disposed between the wheel cover and the wheel disc. The wheel cover and the wheel disc each includes a sheet metal, and the plurality of blades includes a composite material. The wheel cover includes an air inlet. The wheel disc includes a central part and a motor mounting base disposed on the central part. Every two adjacent blades form an air channel including an air outlet. The plurality of blades each includes a metal frame, and a plastic shell disposed on the metal frame. Two ends of the metal frame are connected to the wheel cover and the wheel disc, respectively. The metal frame is integrated with the plastic shell through injection molding. The plastic shell is wrapped around at least a part of the metal frame.

Inverted Annular Side Gap Arrangement For A Centrifugal Pump

Various aspects of the disclosure are directed to providing structures that define a radial gap between an impeller and a pump casing element that facilitates minimizing the movement of fluid into the radial gap in a manner that lessens the impact, and consequent degradation, of the inner surface of the pump casing element by movement of abrasive particulates out of the radial gap, which is accomplished by providing a suction inlet arrangement of an impeller and pump casing element that are angled from the eye of the impeller to the outer periphery of the impeller in a direction away from the back shroud or drive side of the impeller and toward a first end of the pump casing in which fluid is introduced into the pump casing. 1. The suction inlet arrangement for a centrifugal pump , comprising: an axially extending fluid conduit having a first end with a first opening for introduction of fluid into the conduit and a second end with a second opening, a fluid pathway being defined between the first end and the second end; and', 'a radially extending wall that extends radially outwardly from the second end of the fluid inlet body to an outer radial point, the radially extending wall having an annular surface that faces outwardly in a direction away from the first end of the fluid inlet body and which slopes in a direction from the second end of the fluid conduit toward the outer radial point, the direction of the slope being toward the first end of the fluid inlet conduit; and, 'a fluid inlet body comprising,'}an impeller having a rear shroud and a front shroud axially spaced from the rear shroud, the front shroud having a circumferential opening defining an eye of the impeller and having an annular peripheral aspect radially spaced from the eye, the front shroud having an outward facing surface that extends at or from near the circumferential opening to the peripheral aspect of the front shroud and is oriented in a direction away from the rear shroud, the outward ...

Multi-Piece Compressor Wheel

A compressor wheel assembly for a forced induction device includes an impeller member and a plate member. The impeller member is formed of a polymer material, and includes a hub portion and a plurality of blades extending from an outer surface of the hub portion. The hub portion includes an outer peripheral portion formed therewith. The plate member is connected to the outer peripheral portion of the impeller member to be rotationally fixed thereto. The plate member being formed of a metal material. 1. A compressor wheel assembly for a forced induction device , the compressor wheel assembly comprising:an impeller member formed of a polymer material and having a hub portion and a plurality of blades extending from an outer surface of the hub portion, the hub portion having an outer peripheral portion formed therewith; anda plate member connected to the outer peripheral portion of the impeller member to be rotationally fixed thereto, the plate member being formed of a metal material.2. The compressor wheel assembly according to claim 1 , wherein a first axial surface of the plate member is mated against a first axial surface of the impeller member.3. The compressor wheel assembly according to claim 2 , wherein the impeller member includes a flange portion that forms the outer peripheral portion claim 2 , and the plate member extends radially around the flange portion to connect the plate member to the impeller member.4. The compressor wheel assembly according to claim 3 , wherein the plate member extends circumferentially entirely around the flange portion.5. The compressor wheel assembly according to claim 4 , wherein the flange portion extends axially away from the hub portion.6. The compressor wheel assembly according to claim 4 , wherein the flange portion extends radially outward beyond the blades where coupled to the hub portion.7. The compressor wheel assembly according to claim 6 , wherein the first axial surface of the plate member is bonded to the first ...

CENTRIFUGAL FAN

A valve device for a cooling water system of a motor vehicle, with a housing including a first connection and a second connection for a first liquid circuit, and a third connection and a fourth connection for a second liquid circuit, wherein the first connection is permanently fluidically connected to the second connection, and with a valve unit including a movably mounted valve element with which a thermally activatable spring element is associated, and which opens a connection between the third connection and the fourth connection in a first end position and cuts off the connection in a second end position. The thermally activatable spring element is arranged in a chamber located between the first connection and the second connection, which is permanently cut off from the third and the fourth connection and which preloads the valve element in the direction of the second end position. 1. A centrifugal fan comprising:a resin upper casing,a resin lower casing,an impeller,a motor, anda circuit board,wherein the impeller, the motor and the circuit board are housed between the resin upper casing and the resin lower casing,ribs are formed at a bottom surface of the lower casing,the lower casing includes primary pins for fixing the circuit board to the lower casing, andthe primary pins are reinforced by the rib.2. The centrifugal fan according to claim 1 , wherein the ribs include primary ribs extending along a radial direction and secondary ribs extending along a circumferential direction claim 1 , andeach of the primary pins is provided in a standing manner at a part where the primary rib and the secondary rib intersect.3. The centrifugal fan according to claim 2 , wherein the lower casing includes a circular protruding part reinforced by the primary ribs claim 2 , anda hollow cylindrical bearing holder, rotatably holding a shaft, which is a rotating axis of the impeller, is held in the circular protruding part.4. The centrifugal fan according to claim 3 , wherein each ...

ELECTRIC CENTRIFUGAL COMPRESSOR OF A TURBINE ENGINE OR AIRCRAFT

The invention relates to an electric centrifugal compressor, in particular for a turbine engine or aircraft, including an electric motor, the stator of which is supported by a casing and the rotor of which includes a shaft mounted inside the casing, driving a centrifugal compressor impeller, said, the casing having a double skin and including two substantially cylindrical, coaxial skins extending around the engine and defining between them an annular section suitable for the circulation of a first cooling air flow, one inlet of which is located at a first longitudinal end of the shaft and an outlet of which is connected to a second longitudinal end of the shaft, which supports the centrifugal compressor impeller, wherein it includes means (J) for collecting a second air flow at the outlet of the centrifugal compressor impeller, means for channelling the second air flow along the shaft up to the first end, and means for discharging the second air flow out of the casing in order to prevent same from mixing with the first air flow. 1. Electric centrifugal compressor , in particular for a turbine engine or aircraft , comprising an electric motor , the stator of which is supported by a casing and the rotor of which includes a shaft mounted inside said casing , said shaft driving a centrifugal compressor impeller , said casing having a double skin and comprising two substantially cylindrical , coaxial skins extending around said engine and defining between them an annular flow path suitable for the circulation of a first cooling air flow , one inlet of which is located at a first longitudinal end of said shaft and an outlet of which is connected to a second longitudinal end of said shaft , which supports said centrifugal compressor impeller , wherein said compressor includes means (J) for collecting a second air flow at the outlet of said centrifugal compressor impeller , means for channelling said second air flow along said shaft up to said first end , and means for ...

Air mover inlet interface and cover

An air mover assembly comprising: (a) an impeller having an impeller outer diameter and a rotational axis; (b) a motor for driving the impeller; (c) an air mover housing that encloses at least a portion of the impeller and the motor, the air mover housing including: at least one air inlet that receives air when the impeller is rotating and at least one air outlet; and (d) an air mover inlet interface adjoining the at least one air inlet and including: (i) a height, (ii) a wall having a curvature along at least a portion of the height of the air mover inlet interface that extends outward in a direction of air flow, and (iii) an inner diameter; wherein the inner diameter is less than the impeller outer diameter. 112-. (canceled)13. An air mover cover comprising:a grill portion adapted to allow movement of air while preventing objects of a predetermined size from passage; (1) at least one first generally centrally disposed through hole opening having a first geometric shape, and a plurality of radially adjoining through hole openings having a second geometric shape different from the first geometric shape and radially adjoining the generally centrally disposed through hole opening;', '(2) a plurality of connection structures that have a center density in a central region of the grill portion and an adjacent density in regions surrounding the central region, where the center density is higher than the adjacent density when measured using a total length of the connection structure per unit area of each region;', '(3) at least one first generally centrally disposed through hole opening having a first area, and a plurality of radially adjoining through hole openings each having a second area that are each different than the first area; or', '(4) any combination of (1) through (3)., 'wherein the grill portion includes14. The air mover cover of claim 13 , wherein the air mover cover includes a connection portion adapted to connect to an inlet or an outlet of an air mover ...

BLOWER

A blower including a volute, a motor, a blower wheel, and a box. The motor is disposed on the volute. The motor includes a spindle, a rotor assembly, a stator assembly, a motor housing, a front-end cover, a rear-end cover and a capacitor. The rotor assembly is disposed on the spindle. The stator assembly and the motor housing are integrated and sleeved on the rotor assembly. The front-end cover and the rear-end cover are installed on the two ends of the motor housing, respectively. Two ends of the spindle are supported on the bearing of the front-end cover and the bearing of the rear-end cover, respectively. The front end of the spindle extends into the volute and is connected to the blower wheel. The capacitor is disposed in a cavity formed by the box and the rear-end cover. 2. The blower of claim 1 , wherein the box comprises a cavity part and a turnup part extending out from an end of the cavity part; the capacitor is positioned in the cavity part.3. The blower of claim 2 , wherein a ring-shaped gasket is disposed between the turnup part and the rear-end cover.4. The blower of claim 3 , wherein the turnup part claim 3 , the gasket and the rear-end cover are locked and fixed together through a plurality of bolts.5. The blower of claim 2 , wherein the front-end cover and the rear-end cover are respectively disposed on two ends of the motor housing through bolts and nuts.6. The blower of claim 3 , wherein the front-end cover and the rear-end cover are respectively disposed on two ends of the motor housing through bolts and nuts.7. The blower of claim 4 , wherein the front-end cover and the rear-end cover are respectively disposed on two ends of the motor housing through bolts and nuts.8. The blower of claim 5 , wherein first gaps and second gaps corresponding to the first gaps are respectively disposed on outer edges of the turnup part and the gasket; and the nuts are disposed in the first gaps and the second gaps.9. The blower of claim 6 , wherein first gaps and ...

PUMP ASSEMBLY

A pump assembly having a drive module with a stator, a rotor held on a shaft so as to be rotatable relative to the stator, and a housing that circumferentially encloses a portion of the stator. An impeller is held on the shaft, and a hydraulic unit has an intake port through which liquid can be delivered to the impeller. An adapter is connected to the drive module on one side and to the hydraulic unit on the other side. A can body extends between the rotor and the stator of the drive module and encloses the rotor on an end face facing away from the impeller. A can flange adjoins the can body on a side facing the impeller and projects radially outward from the can body. A tubular section circumferentially encloses the impeller at least in part and delimits a pump chamber containing the impeller. 1. A pump assembly for water-carrying cleaning appliances , the pump assembly comprising:a drive module with a stator, a rotor held on a shaft of the drive module so as to be rotatable relative to the stator, and a housing that circumferentially encloses at least sections of the stator;an impeller for pumping liquid that is held on the shaft;a hydraulic unit with an intake port through which the liquid is adapted to be delivered to the impeller; and a can body that extends between the rotor and the stator of the drive module, and encloses the rotor on an end face facing away from the impeller;', 'a can flange adjoining the can body on a side facing the impeller, the can flange projecting radially outward from the can body at least in sections;', 'a tubular section that circumferentially encloses the impeller at least in part and that delimits a pump chamber containing the impeller; and', 'a discharge port formed on the tubular section for discharging the liquid from the pump chamber., 'an adapted arranged between the drive module and the hydraulic unit, the adapter being connected on one side to the drive module and on the other side to the hydraulic unit, the adapter ...

BLOWER

A blower has a centrifugal multi-blade fan that has blades around a rotation axis and a casing that houses the centrifugal multi-blade fan. The centrifugal multi-blade fan satisfies a relation of d/h≧5, in which d is a diameter of a part having the blades, and h is a height of the blades in an axial direction of the rotation axis. A part of the casing on one side in an axial direction of the centrifugal multi-blade fan has an air suction port. A part of the casing on the radial outer side of the centrifugal multi-blade fan has an air passage through which air blown from the centrifugal multi-blade fan flows. The casing has an enlargement portion that enlarges the air passage on at least one of the one side and an other side in the axial direction as the casing extends toward the radial outer side. 1. A blower comprising:a centrifugal multi-blade fan that has blades around a rotation axis, the centrifugal multi-blade fan that draws air from a radial inner side and blows the air to a radial outer side; anda casing that houses the centrifugal multi-blade fan, wherein{'b': 1', '1', '1', '1, 'the centrifugal multi-blade fan satisfies a relation of d/h≧5, in which d is a diameter of a part having the blades, and h is a height of the blades in an axial direction of the rotation axis,'}a part of the casing on one side in an axial direction of the centrifugal multi-blade fan has an air suction port that draws the air,a part of the casing on the radial outer side of the centrifugal multi-blade fan has an air passage through which air blown from the centrifugal multi-blade fan flows, andthe casing has an enlargement portion that enlarges the air passage on at least one of the one side and an other side in the axial direction as the casing extends toward the radial outer side.2. The blower according to claim 1 , whereina surface of the blower casing on the one side in the axial direction has a recessed portion that is recessed toward the other side in the axial direction and ...

Modular Water Pump

A water pump apparatus is provided having a plurality of modular components, which allows for construction of various configurations of the water pump apparatus depending on specific vehicle requirements. The water pump apparatus modular components include a pump housing with a fluid chamber formed therein, a bearing housing for attachment to the pump housing, and a thermostat housing for connecting to the bearing housing and the pump housing. A method for forming modular components for assembling a water pump apparatus for use in an internal combustion engine is also provided. 1. A modular water pump apparatus comprising:a pump housing having a front portion and a back portion, and a fluid chamber formed therein;a bearing housing for attachment to the front portion of the pump housing, the bearing housing having a water inlet;a rotational shaft rotatably supported within the bearing housing by a set of bearings;an impeller fixed to the shaft, the impeller located within the fluid chamber of the pump housing;a thermostat housing for connecting to the bearing housing and the pump housing;wherein the bearing housing is interchangeably connected to one of either a right side or a left side of the pump housing.2. The modular water pump apparatus of claim 1 , wherein the apparatus further includes an impeller shroud having a gasket.3. The modular water pump apparatus of claim 2 , wherein the impeller shroud and gasket are positioned between the bearing housing assembly and the front portion of the pump housing.4. The modular water pump apparatus of claim 1 , wherein the back portion of the pump housing is connected to a front cover of a crankcase.5. The modular water pump apparatus of claim 1 , wherein the thermostat housing is integrally connected with a water inlet passage and a water outlet passage.6. The modular water pump apparatus of claim 5 , wherein the water inlet passage sealingly engages the water inlet of the bearing housing.7. The modular water pump ...

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 ...

Two-Stage Centrifugal Pump

A two-stage centrifugal pump comprising: a first stage provided with a first impeller mounted on a first shaft and a second stage provided with a second impeller mounted on a second shaft distinct from said first shaft; and hydraulically connected to the first stage, and the stages mounted in a single support body, provided with a first chamber and a second chamber in which said first impeller and respectively said second impeller are contained; said support body comprises a case made in a single body therewith and provided with a first cavity and a second cavity that define respective portions of said first chamber and said second chamber; in at least one of either said first cavity or said second cavity one or more adaptors are mounted, to adapt the geometry of the first chamber and/or the second chamber to the type and size of impeller adopted. 1. A two-stage centrifugal pump comprising:a first stage provided with a first impeller; anda second stage provided with a second impeller and hydraulically connected to the first stage;the first impeller being mounted on a first shaft and the second impeller being mounted on a second shaft distinct from said first shaft;wherein the first stage and the second stage are located in a support body, the support body being provided with a first chamber and a second chamber in which the respective first impeller and the second impeller are contained; andwherein the support body comprises a single casing provided with a first cavity and a second cavity that each define respective portions of said first chamber and said second chamber; andwherein in at least one of either the first cavity or the second cavity, one or more adaptors are mounted, in use to adapt the geometry of the first chamber and/or the second chamber to the type and size of impeller adopted.2. A pump according to claim 1 , wherein said first shaft and said second shaft have respective axes of rotation arranged parallel to each other.3. A pump according to either ...

FLUID PUMP

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

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.

Ceiling mounted ventilation fan with illumination

A ceiling mounted ventilation fan includes a housing, a fan unit and lighting equipment installed in the housing. The housing including a first opening connected to an air outlet and communicating with a duct, and a second opening that communicates with a room interior. The lighting equipment includes an illumination unit, and a cover, that surrounds the illumination unit, and has a reflecting surface which reflects light from the illumination unit and guides the light into the room. The fan unit includes a fan and a casing positioned at a first position, spaced, from a second position that is above the second opening, the fan casing surrounding the fan and having an air inlet opening directed upwardly. Air is introduced through the second opening and through the air inlet into the fan unit and is discharged through into the duct by the fan unit.

DRAIN PUMP AND A CLOTHES DRYER HAVING A DRAIN PUMP

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

SHAFTLESS FAN STRUCTURE

A shaftless fan includes a fan stator, a vane rotor and a rolling bearing. The rolling bearing is installed between the fan stator and the vane rotor and includes an inner ring, an outer ring, and a plurality of rolling elements rollably installed between the inner and outer rings, and the inner and outer rings of the rolling bearing are rotated in opposite direction with respect to each other, so that the vane rotor can be rotated on the fan stator to connect the fan stator with the vane rotor through the rolling bearing, so as to achieve the shaftless effect. 1. A shaftless fan structure , comprising:a fan stator;a vane rotor; anda rolling bearing, installed between the fan stator and the vane rotor, and including an inner ring, an outer ring, and a plurality of rolling elements rollably installed between the inner and outer rings; wherein the inner and outer rings are rotated in opposite directions with respect to each other, so that the vane rotor can be rotated on the fan stator.2. The shaftless fan structure of claim 1 , wherein the vane rotor includes an impeller claim 1 , a plurality of blades disposed outside the impeller claim 1 , and a magnetic element installed in the impeller claim 1 , and the impeller has a circular wall claim 1 , and each blade is arranged around the periphery of the impeller and mounted onto the circular wall.3. The shaftless fan structure of claim 2 , further comprising a hood for mounting the fan stator thereon claim 2 , and a bearing collar mounted onto the hood and fixed onto the inner ring of the rolling bearing claim 2 , and the outer ring of the rolling bearing being fixed into the circular wall of the vane rotor.4. The shaftless fan structure of claim 3 , wherein the impeller is covered onto the exterior of the fan stator and provided for the fan stator to be accommodated in a space enclosed by the impeller and the circular wall of the impeller.5. The shaftless fan structure of claim 3 , wherein the rolling bearing is a ball ...

OIL TANK OF TURBO CHILLER COMPRESSOR AND TURBO CHILLER COMPRESSOR

Provided is an oil tank of a turbo chiller compressor whose heater can be replaced or checked without removing oil from an oil tank and removing refrigerant from a turbo chiller, and a turbo chiller compressor. An oil tank () of a turbo chiller compressor (A) includes a bottom plate () and side plates () standing upright so as to extend upward from an outer peripheral edge portion of the bottom plate (). The oil tank () forms a bottom portion of a casing () forming the turbo chiller compressor (A), a through-hole () is formed so as to penetrate the side plate () in a plate thickness direction, a protective tube () closed at a tip end thereof is inserted into the through-hole (), and a rod-shaped heater () configured to be able to be pulled out from the protective tube () and be inserted into the protective tube () is inserted into the protective tube (). 110-. (canceled)11. An oil tank of a turbo chiller compressor , comprising:a bottom plate; anda side plate standing upright so as to extend upward from an outer peripheral edge portion of the bottom plate,the oil tank forming a bottom portion of a casing forming the turbo chiller compressor, whereinin the bottom plate, a hole is formed so as to extend from one end surface of the bottom plate toward the other end surface of the bottom plate opposite to the one end surface,a rod-shaped heater configured to be able to be pulled out from the hole and be inserted into the hole is inserted into the hole, anda plurality of heat transfer fins are formed so as to protrude upward from an upper surface of the bottom plate.12. The oil tank of a turbo chiller compressor according to claim 11 , whereina space between the hole and the heater is filled with heat transfer fluid having a high coefficient of thermal conductivity.13. A turbo chiller compressor comprising:{'claim-ref': {'@idref': 'CLM-00011', 'claim 11'}, 'the oil tank of a turbo chiller compressor according to .'}14. A turbo chiller comprising:{'claim-ref': {'@idref': ...

FAN, MOLDING DIE, AND FLUID FEEDER

A fan includes a plurality of blade portions arranged spaced apart from each other in a circumferential direction, each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of said pressure surface. The plurality of the blade portions include a first blade portion and a second blade portion in which when they are rotated around the rotation axis of the fan and overlapped on one blade portion, one of an inner edge portion and an outer edge portion is disposed to be coincident with each other, and the other of the inner edge portion and the outer edge portion is disposed to be displaced from each other. 1. A fan comprising a plurality of blade portions arranged spaced apart from each other in a circumferential direction , each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of said pressure surface , whereinwhen cut along a plane orthogonal to a rotation axis of the fan, said blade portion has an inner edge portion at which a center line between said pressure surface and said suction surface intersects an inner peripheral-side blade tip, and an outer edge portion at which the center line intersects an outer peripheral-side blade tip,as the fan is rotated, a fluid flow is produced on said blade surface to flow between said inner edge portion and said outer edge portion,when an angle between a straight line passing through a rotational center of the fan and said outer edge portion and a tangent of said center line at said outer edge portion is defined as an outer peripheral blade tip angle, and an angle between a straight line passing through the rotational center of the fan and said inner edge portion and a tangent of said center line at said inner edge portion is defined as an inner peripheral blade tip angle,a plurality of said blade portions are ...

COMPRESSOR WHEEL, CENTRIFUGAL COMPRESSOR, MACHINING METHOD FOR COMPRESSOR WHEEL, AND MACHINING APPARATUS FOR COMPRESSOR WHEEL

A compressor wheel includes a hub fixed to one end of a shaft, and a plurality of blades arranged on an outer periphery of the hub. Each blade has a leading edge and a trailing edge, and includes a wing surface that is a curved surface drawn by a trajectory of movement of a linear bus line. The bus line has an intersection with the trailing edge on the trailing edge side, and inclines to a direction approaching an inside of a radial direction of the shaft, as going from one end side to the other end side in an axial direction of the shaft. 1. A compressor wheel that rotates integrally with a shaft , and compresses and sends out a fluid sucked from a suction port formed in a centrifugal compressor body outward in a radial direction of the shaft , the compressor wheel comprising:a hub fixed to one end of the shaft; anda plurality of blades arranged on an outer periphery of the hub,wherein each blade has a leading edge that is an end of an upstream side in a flow direction of the fluid, and a trailing edge that is an end of a downstream side in the flow direction of the fluid, and includes a wing surface that is a curved surface drawn by a trajectory of movement of a linear bus line, andwherein the bus line has an intersection with the trailing edge on the trailing edge side, and the bus line having the intersection with the trailing edge inclines in a direction approaching an inside in the radial direction of the shaft, as going from one end side toward other end side in an axial direction of the shaft.2. The compressor wheel according to claim 1 , whereinan angle between the trailing edge located closer to the other end side in the axial direction of the shaft than the intersection and the bus line located closer to the other end side in the axial direction of the shaft than the intersection is not less than 20 degrees.3. A centrifugal compressor comprising:a centrifugal compressor body;a shaft rotatably supported by the centrifugal compressor body; anda compressor ...

VACUUM GENERATOR FLOW DIVERTER

Embodiments provide systems and methods for providing improved air flow for vacuum generator systems. The systems may include a housing with an impeller and a diverter having an airflow flange comprising an arrow-like projection configured to extend into an airflow space of the housing. The diverter may have curved surfaces that help guide airflow movement within the housing. 1. A diverter for being positioned in a housing of a vacuum generator system , comprising:a securement flange;first and second upper walls; andan airflow flange configured to extend into an airflow space of the housing.2. The system of claim 1 , wherein the securement flange comprises one or more openings.3. The system of claim 1 , wherein the housing comprises an inside housing portion and an outside housing portion claim 1 , wherein the securement flange is sandwiched between the inside housing portion and the outside housing portion.4. The system of claim 1 , wherein the airflow flange comprises an arrow-like projection.5. The system of claim 1 , further comprising a first curved wall extending between the first upper wall and the airflow flange and a second curved wall extending between the second upper wall and the airflow flange.6. A vacuum generator system claim 1 , comprising:a housing comprising first and second portions, the first and second portions each comprising inner curved surfaces;an impeller;a diverter comprising a flange configured to be received between the first and second portions, first and second upper walls configured to abut the housing, an airflow flange comprising an arrow-like projection configured to extend into an airflow space of the housing, a first curved surface extending between the first upper wall and the airflow flange, and a second curved surface extending between the second upper wall and the airflow flange, wherein in use, airflow created up by impeller movement is diverted along the first and second curved walls of the diverter and the inner curved ...

CONTROL METHOD FOR INLET SWIRL DEVICE

A number of variations may include a method comprising selectively actuating an inlet swirl device to cause a compressor to windmill at a higher speed during an operation mode where fuel consumption of an engine in the vehicle is at a minimal or before an acceleration event. 1. A method comprising:selectively actuating an inlet swirl device to cause a compressor to windmill at a higher speed during an operation mode where fuel consumption of an engine in the vehicle is at a minimal or before an acceleration event.2. The method of wherein the operation mode is at least one of a braking mode claim 1 , a deceleration mode claim 1 , or a coasting mode.3. The method of wherein the operation mode is a gear shift.4. A control method for an inlet swirl device in an engine in a vehicle comprising:determining whether the vehicle is operating in at least one of a first mode, a second mode, or a third mode;actuating a plurality of vanes in the inlet swirl device to move to at least one first angle based on at least one engine control operation in the first mode;actuating the plurality of vanes in the inlet swirl device to move to at least one second angle to induce a high level of swirl of a fluid flow exiting the inlet swirl device in the second mode; andactuating the plurality of vanes in the inlet swirl device to move to at least one third angle to induce the high level of swirl of the fluid flow exiting the inlet swirl device in the third mode.5. The control method of wherein in the first mode claim 4 , fuel consumption by the engine is high claim 4 , and wherein in the second mode fuel consumption by the engine is at a minimum.6. The control method of wherein in the third mode claim 4 , an acceleration event of the vehicle is anticipated.7. The control method of wherein the at least one first angle achieves maximum efficiency of the engine and the at least one second angle and the at least one third angle cause a compressor in the engine to windmill at a high speed.8. The ...

Blower Motor Assembly Having Air Directing Surface

A blower assembly includes a centrifugal fan and a motor assembly. The centrifugal fan has a plurality of axially extending impeller blades, a first axial end, and an air inlet. The air inlet is at the first axial end of the centrifugal fan. The motor assembly comprises a stator, a rotor, and an air directing surface. The air directing surface is shaped and configured to direct air drawn into the air inlet radially outwardly toward the impeller blades. The air directing surface extends generally along the rotor axis from its first end to its second end. At least a surface region of the air directing surface generally circumscribes the rotor axis and diverges radially outwardly as such surface region of the air directing surface extends away from the first end toward the second end. 1. A blower assembly comprising:{'sub': 'f', 'a centrifugal fan rotatable about a fan axis, the centrifugal fan having a plurality of axially extending impeller blades, a first axial end, a second axial end, a first air inlet, a second air inlet, and a drive plate between the first and second axial ends of the centrifugal fan, the second axial end being opposite the first axial end, the first air inlet being at the first axial end of the centrifugal fan, the second air inlet being at the second axial end of the centrifugal fan, the drive plate being between the first and second axial ends of the centrifugal fan, the impeller blades having inner surfaces that combine to define a fan inner diameter d;'}{'sub': 1', '2', '1', '2', '2', 'f, 'a motor assembly comprising a stator, a rotor, at least one electronic component adapted and configured to control the motor assembly, and an air directing surface, the rotor being configured to rotate relative to the stator about a rotor axis, the rotor of the motor assembly being operatively coupled to drive plate of the centrifugal fan in a manner such that the centrifugal fan rotates with the rotor about the rotor axis, said at least one electronic ...

Flexible Impeller Pumps And Disposable Fluid Flow Circuits Incorporating Such Pumps

A disposable fluid pump is provided with a housing including first and second faces, with a sidewall extending between the first and second faces. The housing defines a chamber, with an inlet and an outlet in fluid communication with the chamber. An impeller is rotatably mounted within the chamber and includes a plurality of flexible vanes. Such a pump may be incorporated into a disposable fluid flow circuit that is adapted to be mounted on a durable hardware for processing a fluid. In such a fluid flow circuit, the fluid pump may be integrated into a cassette of the circuit or, alternatively, the inlet and outlet of the fluid pump may be directly connected to fluid flow conduits of the circuit. 1. A disposable fluid pump comprising:a housing including first and second faces and a sidewall extending between the first and second faces, the housing defining a chamber and an inlet and an outlet in fluid communication with the chamber; andan impeller rotatably mounted within the chamber and including a plurality of flexible vanes.24-. (canceled)5. The disposable fluid pump of claim 1 , whereinthe chamber and the impeller are present in a plane, andat least one of the inlet and outlet extends from the chamber to the sidewall at a location within the same plane in which the chamber and the impeller are present.6. The disposable fluid pump of claim 1 , whereinthe chamber and the impeller are present in a plane, andat least one of the inlet and outlet extends from the chamber to the sidewall at a location in a different plane than the plane in which the chamber and the impeller are present.7. The disposable fluid pump of claim 1 , whereinone of the first and second faces of the housing defines an opening, andthe impeller includes a rigid hub associated with the flexible vanes and defining a socket accessible through said opening and configured to receive a shaft for rotation of the impeller within the chamber.8. The disposable fluid pump of claim 1 , whereinthe impeller ...