ПРОПЕЛЛЕРНЫЙ НАСОС

Изобретение относится к пропеллерным (осевым) насосам. Пропеллерный насос содержит основание с подшипниками, ступицу, горизонтальный вал, лопасти колеса, роторы, имеющие магнитный контакт со статорами, установленными на основании. Роторы соединены с входными валами дополнительных редукторов, на выходных валах которых установлены дополнительные лопасти колеса с вращением относительно главной оси. Профили дополнительных лопастей колеса выполнены с возможностью прилегания к профилям основных лопастей. Изобретение направлено на расширение диапазона регулирования путем изменения числа лопастей колеса. 6 ил.

НАСОС-ДОЗАТОР ДЛЯ РТУТИ

Насос-дозатор для ртути, состоящий из шнека, плотно помещенного в трубу с отверстиями в нижней части для забора и верхней - для слива и вращающегося вместе с трубой.

НАСОС

Полезная модель относится к области производства насосов и может найти применение при создании гидравлических машин, насосов, вентиляторов, компрессоров, а также для перекачки многофазных сред при добыче нефти и газа. Насос, характеризующийся тем, что он содержит обойму с входным и выходным каналами и с выполненными в ней проточными каналами в виде многозаходной винтовой нарезки, приводной вал с установленным на нем ротором, состоящим из установленных последовательно одна за другой на приводном валу секций, каждая из которых содержит установленные на приводном валу лопастные колеса, межлопастные каналы которых выполнены с возможностью сообщения через винтовые проточные каналы в обойме с межлопастными каналами колеса в последующей секции, отличающийся тем, что обойма выполнена многосекционной, в полости каждой секции установлен с жесткой фиксацией опорный диск, а каждое лопастное колесо оснащено упорными элементами, установленными с обеих торцевых сторон колеса, с возможностью передачи осевой ...

НАСОС НЕФТЯНОЙ МНОГОСТУПЕНЧАТЫЙ СЕКЦИОННЫЙ

Насос нефтяной многоступенчатый секционный, содержащий корпус с всасывающим и нагнетательным патрубками, секции, состоящие из нескольких рабочих колес и направляющих аппаратов, с встречным расположением колес, и диафрагму, размещенную между секциями, с переводными каналами для направления потока перекачиваемого продукта с выхода первой секции на вход второй и нагнетательным каналом для направления потока из второй секции в нагнетательный патрубок, отличающийся тем, что, с целью увеличения его КПД за счет снижения потерь в каналах диафрагмы, переводные каналы выполнены как продолжение каналов направляющих аппаратов с плавным изменением площадей и направления потока от окружного к осевому и нагнетательный канал выполнен боковым с плавным изменением площадей и диффузором на выходе, переходящим в нагнетательный патрубок.

ГЕРМЕТИЧНЫЙ НЕФТЯНОЙ НАСОС С МАГНИТНЫМ ПРИВОДОМ

... 1. Герметичный нефтяной насос с магнитным приводом, содержащий полость ведомого магнитоприводного подшипникового узла с подшипниками скольжения для протекания охлаждающего и смазывающего продукта, образованную герметизирующим стаканом, корпусом подшипников скольжения и валом с ведомой магнитной полумуфтой, установленным в подшипниках скольжения, полость проточной части для протекания перекачиваемого продукта, образованную корпусом насоса с всасывающим и нагнетательным патрубками, крышкой корпуса и валом с рабочим колесом, и каналы в деталях насоса для подвода, отвода и обеспечения циркуляции охлаждающего и смазывающего подшипники скольжения и магнитную муфту продукта, отличающийся тем, что, с целью расширения области эффективной и надежной его эксплуатации путем повышения долговечности подшипников, снижения давления и температуры в полости ведомого магнитоприводного узла, полости магнитоприводного подшипникового узла и проточной части разделены уплотнением вала, размещенным за рабочим колесом ...

Устройство для передачи механической энергии текучей среде

Полезная модель относится к области перекачивания сред, а именно к устройствам для передачи механической энергии текучим средам (жидкостей или газов), которые могут применяться в качестве осевых насосов, компрессоров. Устройство содержит статор (1) и установленное внутри статора (1) рабочее колесо (2). Рабочее колесо включает внешнее кольцо (5) и размещенные внутри кольца лопатки (8), при этом во внешнем кольце (5) установлены постоянные магниты (9). На статоре (1) размещен электромагнитный узел для привода рабочего колеса (2), включающий размещенные радиально вокруг рабочего колеса (2) электромагниты (3), с возможностью изменения полярности. Технический результат - увеличение эффективности передачи крутящего момента на рабочее колесо.

Насос-понтон для гомогенизации и перекачки жидких органических удобрений

Полезная модель относится к устройствам для гомогенизации и перекачки жидких органических удобрений, в частности навозных стоков из лагун животноводческих комплексов. Насос-понтон для гомогенизации и перекачки жидких органических удобрений содержит понтон с размещенной на нем нагнетательной камерой с патрубком, механизм привода, соединенный с вертикальным валом, на котором закреплены измельчающий и перемешивающий рабочий орган, выполненный в виде лопастей с продольными отверстиями, транспортирующий шнек, установленный в кожухе, соединенный с нагнетательной камерой, и лопатки, размещенные внутри нагнетательной камеры, а также сообщенную с полостью кожуха транспортирующего шнека приемную камеру, установленную в нижней части кожуха. Технический результат состоит в повышении эффективности гомогенизации и перекачки жидких органических удобрений из лагун животноводческих комплексов.

УСТРОЙСТВО ДЛЯ СБОРА РАЗЛИТЫХ ЖИДКОСТЕЙ

Устройство для сбора разлитых жидкостей, включающее рабочий орган в виде пружины, установленной внутри кожуха, имеющего гибкие заборную и сливную части с окнами, привод рабочего органа, причем заборная часть установлена с возможностью вращения относительно сливной части, окна заборной части расположены со стороны кожуха, обращенной к поверхности сбора жидкости, на наружной поверхности кожуха заборной части установлены заслонки в виде колец с вырезами, параллельными их оси, а ширина вырезов равна 1/3…1/4 длины окружности колец, отличающееся тем, что вырезы заслонок выполнены шириной, постепенно увеличивающейся к концу заборной части кожуха, а между заслонками на наружной поверхности кожуха заборной части с возможностью вращения установлены втулки, наружный диаметр которых равен наружному диаметру заслонок.

ПОГРУЖНОЙ НАСОС ДЛЯ ПОДЪЕМА МНОГОФАЗНОЙ ЖИДКОСТИ ИЗ СКВАЖИН

Полезная модель относится к области насосостроения и, в частности, к погружным насосам для подъема многофазной жидкости из скважин, используемых, например, при механизированном способе добычи нефти. Технический результат заключается в создании погружного насоса, в котором в процессе его работы обеспечивается поступление смазочной жидкости в зоны трения радиальных подшипников ступеней насоса. Это позволяет увеличить срок службы насоса без усложнения его конструкции и процесса сборки. Погружной насос для подъема многофазной жидкости из скважин содержит вал с размещенными на нем ступенями. Каждая ступень содержит рабочее колесо и направляющий аппарат. Между валом и внутренней втулкой направляющего аппарата, по меньшей мере, части ступеней установлены радиальные подшипники. В теле рабочих колес, преимущественно расположенных над ступенями с радиальными подшипниками, выполнены отверстия. В процессе работы насоса часть перекачиваемой жидкости через отверстия поступает из безлопастной кольцевой ...

МАГИСТРАЛЬНЫЙ ТРУБОПРОВОД

Полезная модель относится к области теплоэнергетики и может быть использована в системах теплоснабжения жилых и промышленных предприятий и позволяет повысить эффективность теплопередачи от источника тепла к потребителю за счет снижения потерь тепла в тепловой магистрали. Магистральный трубопровод содержит, по меньшей мере, один подающий и один обратный теплопроводы, которые расположены параллельно, соединены между собой и охвачены внешней трубой, а поперечное сечение теплопроводов представляет собой замкнутую геометрическую фигуру. Теплопроводы установлены между собой и с внешней трубой без зазора или с зазором, который образован с помощью установочных элементов, выполненных в виде бобышек или продольных ребер, высота которых равна толщине соответствующего зазора. Теплопроводы и внешняя труба имеют теплоизоляцию, которая выполнена покровным слоем, кроме того зазоры между трубопроводами и внешней трубой соединены с вакуумным насосом. Предлагаемый магистральный трубопровод позволяет уменьшить ...

ЛОПАСТНОЙ НАСОС

Изобретение относится к насосостроению и может найти применение в насосах для гидромелиорации и в других отраслях промышленности. Лопастной насос содержит полый ротор в виде обечайки, расположенной между неподвижными всасывающим и нагнетающим фланцами. На внутренней поверхности обечайки расположены наклонные к оси вращения лопатки, установленные на валике, закрепленном в полости обечайки перпендикулярно к оси ее вращения с возможностью поворота на противоположный угол относительно оси вращения обечайки под воздействием разности сил давления жидкости на плечи лопатки при реверсе. На всасывающем фланце закреплены направляющие пластины, которые расположены параллельно оси вращения и смещены в полость обечайки до границы лопаток. Лопатки выполнены гофрированными с переменной высотой волн, ориентированных вдоль дуг окружностей, по которым лопатки омываются потоком жидкости, с переходом межволновых канавок и ребер жесткости у валика в плоскость на хвостовой части лопатки. Изобретение направлено ...

ОСЕДИАГОНАЛЬНЫЙ ШНЕКОВЫЙ НАСОС

Устройство относится к области насосостроения и может быть использовано в нефтехимической, атомной промышленности, в системах водоснабжения сельского хозяйства и других отраслях при перекачке различного рода жидкостей, в том числе агрессивных и неоднородных по плотности и вязкости. Оседиагональный шнековый насос содержит корпус с крышкой, подводом и отводом и оседиагональное шнековое рабочее колесо, закрепленное на валу с втулкой и лопатками. Втулка примыкает к отводу через уплотнение на диаметре, составляющем 0,9 - 1,1 от наружного диаметра лопаток с образованием между собой и валом разгрузочной полости, которая сообщается с полостью подвода с помощью перепускных каналов во втулке рабочего колеса. В разгрузочной полости расположен разъем корпуса с крышкой. На валу со стороны разгрузочной полости установлена цилиндрическая обечайка с радиальными отверстиями. Со стороны полости подвода на валу установлен импеллер. Предложенный насос имеет повышенную долговечность и надежность.

СКВАЖИННЫЙ ПОГРУЖНОЙ НАСОС ДЛЯ ПЕРЕКАЧКИ ВЯЗКОЙ ЖИДКОСТИ

... 1. Скважинный погружной насос для перекачки вязкой нефти, содержащий насосную ступень, состоящую из осевого направляющего аппарата и рабочего колеса, отличающийся тем, что насос состоит из множества ступеней, последовательно расположенных на общем валу и помещенных в общий корпус, а рабочее колесо выполнено осевым в виде втулки со спиральными лопастями.2. Насос по п.1, отличающийся тем, что в меридианном сечении проточный канал рабочего колеса выполнен конфузорным, а направляющего аппарата - диффузорным, при этом отношение площади проточного кольцевого канала рабочего колеса на входе к площади проточного кольцевого канала на выходе, и отношение площади проточного канала направляющего аппарата на выходе к площади проточного канала на входележит в интервале от 1,0 до 1,5.3. Насос по п.1, отличающийся тем, что в рабочем колесе и направляющем аппарате отношение радиальной ширины проточного канала к наружному радиусу канала лежит в интервале от 0,2 до 0,6.4. Насос по п.1, отличающийся тем, что ...

ОСЕВОЙ НАСОС

ОСЕВОЙ НАСОС С ЭЛЕКТРОМАГНИТНЫМ ПРИВОДОМ

... 1. Осевой насос с электромагнитным приводом, содержащий корпус с фланцами крепления к трубопроводам, в котором установлены роторы двух двигателей, отличающийся тем, что один из двигателей принят асинхронного, а второй - вентильно-индукторного действия, оснащенный устройством управления, а в обойме роторов установлены постоянные магниты. ! 2. Осевой насос с электромагнитным приводом по п.1, отличающееся тем, что каждое из рабочих колес имеет сплошной вал, установленный в обтекаемые втулки, снабженные отверстиями для смазки и охлаждения подшипников скольжения. ! 3. Осевой насос с электромагнитным приводом по п.1, отличающееся тем, что якорные обмотки находятся снаружи корпуса.

Осевой грунтовый насос

Изобретение относится к гидромашиностроению, может быть использовано для перекачивания загрязненных жидкостей и является усовершенствованием известного устройства по авт. св. N 1328582. Изобретение повышает надежность бронедисков путем улучшения их промывки. Для этого у насоса с вращающимся бронедиском (Б) 4 ответный Б 5 снабжен направляющими лопатками (Л) 9, направленными против вращения рабочего колеса 2. Л 9 направляют промывочную жидкость, вымывающую частицы грунта, между бронедисками, что повышает эффективность промывки, снижает износ и повышает надежность. 2 ил.

Вертикальный шнековый насос

... 1. ВЕРТИКАЛЬНЕЙ ШНЕКОВЫЙ НАСОС для перемешивания и перекачивания неоднородных сред, содержащий корпус с входным и выходным отверстиями , размещенный в корпусе шнек, лопастное перемешивающее устройство и механизмы перемещения и переключе-, кия с режима перемешивания на режим перекачивания, отличающийс я тем, что, с целью упрощения конструкции и улучшения качества перемешивания , корпус снабжен циркуляционным отверстием, -а также связанной с механизмом переключения подвижной гильзой, в которой выполнены расположенные на разных уровнях сливное и дополнительное циркуляционное отверстия, попеременно сообщающиеся с выходным и циркуляционным отверстиями, на нижнем торце корпуса дополнительно установлен стакан с прорезями для жидкости , а перемешивающее устройство выполнено в виде закрепленного на шнеке фланца с лопастями, установленного в стакане с возможностью (Л вращения, при этом на верхнем торце фланца выполнена кольцевая канавка для взаимодействия с нижним торцом гильзы в ее нижнем положении ...

Осевой насос

Способ запуска центробежного насоса

Лопастной насос

... 1. 1. ЛОПАСТНОЙ НАСОС, содержащий корпус, установленный в нем шнек с лопастями, газовый коллектор и каналы, выполненные в корпусе, входные отверстия которых расположены в коллекторе , а выходные - в полости насоса, отличающийся тем, что, с целью улучшения 4 7 70 12 I Э /5ЛГ/ IJ Jr кавитационных и энергетических характеристик насоса путем упорядочения направления и количества подаваемого в корпус газа, выходные отверстия каналов выполнены над лопастями шнека. 2.Насос по п. 1, отличающийся тем, что выходные участки каналов выполнены наклонными под углом установки лопастей на их периферии в плоскости, касательной к внутренней поверхности корпуса. 3.Насос по пп. 1 и 2, отличающийся тем, что выходные отверстия выполнены на осевом расстоянии от входных кромок лопастей шнека, равном 1 § - шаг, Z - число лопастей шнека. 4.Насос по пп. 1-3, отличающийся тем, что на входе в газовый коллектор установлен регулируемый дроссель, а на корпусе- датчик вибрации, связанный с дросселем. 1 ...

ОСЕВОЙ НАСОС

Винтовой насос для вязких жидкостей

Телескопический шнековый насос

Элеватор

Вертикальный насос

Лабиринтный герметичный электронасос

Шнекоцентробежный насос

Назначение: энергетика и гидравлика, в частности для повышения устойчивости к кавитационным автоколебаниям шнекоцен- тробежных насосов. Сущность изобретения: насос содержит корпус, размещенные в нем на валу (В) 2 рабочее колесо, подвижный в осевом направлении предвключен- ный шнек (Ш) 1 , с втулкой, взаимодействующий с пружиной 5. установленной в проточке на наружной поверхности В 2. Пружина 5 снабжена кольцами 4 и 6, установленными по ее концам, закреплена передним концом на В 2 и расположена перед Ш 1 по ходу потока перекачиваемой жидкости заподлицо с втулкой Ш 1. 2 ил.

Осевой насосный агрегат

Изобретение м.б. использовано в мелиорации и водном хозяйстве. Цель изобретения - повышение производительности насоса. Насос 2, погруженный в жидкость, имеет всасывающий и нагнетательный патрубки 3, 4. Патрубок 3 снабжен направляющими 5, по к-рым может перемещаться кольцевой щит 6 с отверстиями в днище, оборудованный поплавками 9. Полость щита 6 сообщена с патрубком 4 гибким трубопроводом 10 с краном 11. При снижении уровня жидкости для предотвращения воронкообра- зования через щит 6 создается искусственный дождь, что уменьшает прохват воздуха в насос 2. Несмотря на снижение произ-сти из-за возврата жидкости в водоем общая произв-сть возрастает. 2 ил. с ...

Шнек

Лопастной осевой насос

Осевой насос для перекачивания абразивных жидкостей

Изобретение относится к гидромашиностроению и предназначено преимущественно для перекачивания абразивных жидкостей. Изобретение позволяет повысить надежность путем снижения абразивного износа. Для этого в корпусе 1 с цилиндрической камерой 2, сообщенной с источником промывочной жидкости, выполнены сквозные отверстия 5, на внутренней поверхности корпуса 1 выполнена кольцевая проточка 6, а периферийные участки 7 лопастей 8 размещены в последней. В проточке 6 образуется зона с чистой промывочной жидкостью без абразивных включений, что снижает абразивный износ и повышает надежность. 2 ил.

Многоступенчатый насос

Изобретение позволяет повысить эффективность насоса. Многоступенчатый насос содержит ротор 3, на цилиндрической поверхности которого выполнена лабиринтная ступень 5, а на торцовой-предвключенная центробежная ступень 9. По наружному диаметру ведомого диска 8 ступени 9 установлена обечайка 10, образующая с ведущим диском 7 демпферную полость 11. При перекачивании жидкости диск 8 и обечайка 10 обеспечивают плавный переход потока из центробежной ступени 9 в лабиринтную ступень 5. Демпферная полость 11 обеспечивает создание вращающегося вихря, демпфирующего рассогласование характеристик ступеней 9,5 при переходе на нерасчетные режимы работы насоса. 1 ил.

Ротор осевого насоса

Осевой насос

Шнекоцентробежный насос

ШНЕКОЦЕНТРОБЕЖНЫЙ НАСОС , содержащий предвключенный шнек и всасываюш,ий патрубок с отверстиями, гидравлически связанными с источником жидкости под высоким давлением, отличающийся тем, что, с целью улучшения кавитационных и виброакустических характеристик насоса , увеличения КПД, отверстия размеш,ены по всему участку всасывающего патрубка , перекрытому шнеком, а величины проходных сечений отверстий на единицу длины участка выполнены уменьшающимися в направлении от входных кромок лопастей шнека к выходным пропорционально напору. (Л ю со 00 ...

МОКРОГАЗОВЫЙ НАСОС

ЛОПАСТНОЙ НАСОС

Устройство регулирования зазора между корпусом и рабочим колесом лопастной гидромашины

... 1. УСТРОЙСТВО РЕГУЛИРОВАНИЯ ЗАЗОРА МЕЖДУ КОРПУСОМ И РАБОЧИМ КОЛЕСОМ ЛОПАСТНОЙ ГЙДРОМАШИНЫ , содержащее гайку с фиксирующим ее положение относительно вала в осевом направлении элементом, имеющей наружную резьбу, ответную резьбу на внутренней поверхности полости ступицы рабочего колеса, и стопорный элемент, отличающееся тем, что, с целью повышения удобства регулирования, полость в ступице выполнена с стороны входа в рабочее колесо, фиксирующий элемент выполнен в виде щпильки с КОЛЬЦОВОЙ проточкой, а гайка - с кольцевым внутренним выступом, размещенным в последней, при этом торец вала со стороны входа в рабочее колесо имеет центральное резьбовое отверстие под щпильку. 2. Устройство по п. I. отличающееся тем, что стопорный элемент выполнен в виде обтекателя, прижатого к ступице с помощью пружинной щайбы и колпачковой гайки, на- «g вернутой на второй конец щпильки. оо 4 оо ...

Axial or semi-axial pump - has removable bearing drainage pipe

A drainage pipe (21) is provided between the baffle plate (15) and spacer cage (16). The pipe crosses the fuel pumping chamber at the lowest point. The pipe is secured by a union (23) on the space cage side and passes through the pump casing (1) to a dry chamber (4). The pipe is additionally sealed and secured by a suitable keeper (22). In order to enable the pump to be removed from its casing, the drainage pipe (21) is withdrawable.

KREISELPUMPE MIT INTEGRIERTEM MOTOR.

DEVICE FOR STIRRING OR PUMPING

Integrierter Lüfter

Faserabweisende Wandflächengestaltung

Elektrisch angetriebene Axialpumpe

VORRICHTUNG ZUR VERHINDERUNG DES RUECKFLUSSES PARALLEL IN EINEM KREISLAUF GESCHALTETER KREISELPUMPEN

DYNAMOELEKTRISCHE MASCHINE MIT LAGERSCHILDEN FUER VERBESSERTE VENTILATION

SELBSTANSAUGENDE AXIALKREISELPUMPE

Improvements in fans and pumps

... 632,112. Screw fans and pumps. STEWART, Sir F. C. Dec. 15, 1947, No. 32952. [Class 110(i)] The impeller blades, which are of aerofoil form, are of such sectional profile that the camber angle O over at least a part of the length of the blades exceeds 45 degrees. The angle reaches a maximum at or near the root section; 'it may increase continuously along the whole length of the blade or may remain constant over a part of the length and increase along the remainder towards the root. The angle may vary from not more than 30 degrees at the tip to 60 degrees or more at the root. The ratio of maximum camber of the mean line of the blade section to the blade width may vary from not more than 0.1 at the tip to 0.2 or more at the root. Specification 7015/06, [Class 110], is referred to.

Improvements in or relating to rotors for axial flow hydraulic machines

... 348,032. Hydraulic pumps ; turbines. GILL, J. H. W., 33, Earl's Court Gardens, London. Feb. 4, 1930, No. 3736. [Classes 110 (i) and 110 (iii).] In an axial-flow screw pump or reaction turbine a rotor carries blades in which the pitch gradually increases inwards from a chosen valve K at the periphery at such a rate that the pitch at any radius r is not greater than KR/r and greater than KR/r where R is the peripheral radius and a is the ratio of the radius of the boss to the peripheral radius. The preferred form of blade follows the law of pitch=K (R/r)<0.75> from periphery to midblade and from mid-blade inwards the pitch approaches to a higher valve KR/r which it reaches at the boss. The pitch may also vary in an axial direction one edge of a rotor blade changing according to a curve in the above region and in the neighbourhood of the other edge the pitch having a constant value equal to K. Several types of hydraulic machines are described which embody the above features. In Fig.

Improvements in rotary pumps and fans

... 377,475. Rotary fans and pumps. DRYSDALE & CO., Ltd., Bon-Accord Works, Ferry Road, Yoker, Glasgow, and MAWSON, H., University of Liverpool. Aug. 31, 1931, No. 24401. [Class 110 (i).] An axial flow pump or fan has a rotor 6 with blades 1 constituted as a compound, screw ; the blades have a radially constant pitch at entrance 11 and a radially varying pitch at exit 1<2> such that the absolute exit velocities of the fluid are equal at all radii, and the whirl velocities vary inversely as the radii. Inlet guide vanes 3 and exit vanes 5 may be provided integral with the mouthpiece 3 and casing 2 respectively, and the bosses 9, 8 are streamlined. Developed sections of the rotor and guide vanes 1, 4, 5 at radius r are shown in Fig. 2.

A wear monitor for a gas turbine engine fan

An abradable liner 112 for a gas turbine engine fan stage 110 comprising a plurality of abradable layers bonded together, wherein at least one visual indicator is embedded in the plurality of abradable layers. The, or each, indicator may be coloured strips of material placed towards the leading and trailing edges of the fan blade in use. The at least one indicator is preferably located at a radially outer edge of the liner at a depth indicative of maximum tolerable wear. There may be a plurality of embedded indicators of different colours at different layers with at least one indicator extending at least between the trailing edge and leading edge of the fan blade tip in use. The liner may comprise a plurality of arcuate segments releasably attached to each other. Preferably the, or each, indicator includes a dye or adhesive. The invention provides quick and reliable information as to the extent and pattern of wear in an attrition liner.

BOREHOLE PUMP ARRANGEMENT

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

BOHRLOCHPUMPENANORDNUNG

STUFFING BOX-FREE PUMP FOR DEMANDING, LIFTING AND/OR UMWALZEN OF FLUSSIGKEITEN IN A CLOSED SYSTEM

ROTARY FLUID-FLOW MACHINE, APPLICABLE AS PUMP, COMPRESSORS, PROPELLERS, GENERATOR OR POWER TURBINE.

ARRANGEMENT FOR PUMPING VERY VISCOUS MATERIALS, IN PARTICULAR THICKNESSES OELES.

EQUIPMENT FOR AGITATING OR PUMPING.

PUMP WITH INTEGRATED CUTTING UP DEVICE

Trough for a diagonally lying auger

ROTATION DEVICE

Magnetically suspended miniature fluid pump and method of making the same

Article comprising an impeller

Apparatus for generating a current in a pool

Compact Low Noise Efficient Blower for CPAP Devices

Windows pump

Blood pump

REGULATION OF THE FLOW

Fluid pumping system with a continuously variable transmission

A technique for providing a water pumping system suitable for fighting wildfire, flood mediation, sewage transport, and the like is revealed. The system includes an internal combustion engine, a CVT with an input shaft and an output shaft, and a pump with an axial flow impeller. In one variation, multiple impeller stages are used and/or several systems are daisy-chained to provide for suitable delivery of water from its source. In another form, the system is carried by an all- terrain vehicle, side-by-side, or the like, to reach remote areas that need to move water to address a hazardous condition.

SLIDE FASTENER CHAIN GAPPING APPARATUS

NEW SYSTEM OF ROTARY PROPELLER PUMP

FLUID MACHINE

Fluid pump

PUMP FOR TRANSPORTING A HEAT EXCHANGE MEDIUM FOR A MULTI-TUBE REACTOR

The invention relates to a pump (1) comprising a pump feed tube (13) for transporting a heat exchange medium (6) for a reactor containing a bundle of catalyst tubes (2). The pump (1) has a housing (14) that surrounds the pump feed tube (13) and comprises an opening (15) in the lower part of the housing (14), which allows the heat exchange medium (6) that is drawn from the lower section of the reactor by the pump (1) to flow into the housing (14). The medium flows upwards in the section lying between the internal wall of the housing (14) and the external wall of the pump feed tube (13), optionally over a heat exchanger (18) and into the interior of the pump feed tube (13) via an opening (16) in the upper section of said pump feed tube (13). The medium then flows through the pump feed tube from top to bottom, into the reactor via an opening (17) in the lower section of said tube (13) and into the upper section of the intermediate chamber between the catalyst tubes (2).

MAGNETIC SUSPENSION BLOOD PUMP

This invention is a non-contact axial flow turbo blood pump for propelling blood, which is composed of a pump housing (24) that defines a pump axis, with inlet, outlet openings at opposite axial ends of the pump housing, a rotor unit (17) that defines a rotor axis, and opposing rotor axial ends. The pump magnetically suspends the rotor within the pump housing at the rotor axial ends so as to avoid causing physical contact between the housing to define fluid gaps between the rotor axial ends, and the magnetic suspension elements (13)(13').

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

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

WATER PUMP AND IMPELLER THEREFOR

A water pump (10) and impeller (30) for use in applications such as internal combustion engines. A plurality of holes (40, 44) are formed near the hub and periphery of the impeller (30) of the water pump to provide coolant flow through a cavity (22) housing a seal. The seal (18) is thereby cooled to prevent premature failure of the seal (18) due to overheating.

MECHANICAL SEAL

AUXILIARY WATER PUMP

WORM SCREW PUMP

PROPELLER PUMP

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

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

PIPE AXIAL PUMP

The invention relates to a pipe axial pump for pumping a liquid, wherein the motor (4) of the pump is arranged such that the liquid to be pumped flows around the motor and therefore no elaborate rotary leadthroughs of the pump shaft through the pipe system are needed. Furthermore, the bearings (61, 62) of the motor are lubricated by the liquid to be pumped, thereby avoiding risky oil lubrication. As a result, the pipe axial pump is suitable for use in drinking water pipelines.

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

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

FLUID PUMPING SYSTEM WITH A CONTINUOUSLY VARIABLE TRANSMISSION

A technique for providing a water pumping system suitable for fighting wildfire, flood mediation, sewage transport, and the like is revealed. The system includes an internal combustion engine, a CVT with an input shaft and an output shaft, and a pump with an axial flow impeller. In one variation, multiple impeller stages are used and/or several systems are daisy-chained to provide for suitable delivery of water from its source. In another form, the system is carried by an all-terrain vehicle, side-by-side, or the like, to reach remote areas that need to move water to address a hazardous condition.

INTEGRATED CENTRIFUGAL PUMP AND MOTOR

... 2092438 9206301 PCTABS00011 An integrated centrifugal pump and motor is provided by an impeller disk which contains permanent magnets and functions as the rotor for a brushless DC motor. The rotor is supported by non-contacting radial bearings and is hydrodynamically balanced against any axial thrust so that there is no contact between rotating and stationary elements during operation. Since the impeller disk is also the motor rotor, there is no need for a shaft, in the ordinary sense, which would penetrate the case and, thus, require seals. The resulting pump is compact and can be operated electronically at variable speeds.

Dispositif permettant d'améliorer la circulation d'un fluide dans une canalisation.

Insbesondere als Pumpe wirkende Kreiselmaschine.

Installation comprenant un moteur électrique et une machine destinée à travailler dans l'eau et actionnée par ce moteur.

Motorpumpe zum Einbau in einen Rohrleitungsstrang.

Führungsmittel für Drallströmungen.

Zerkleinerungseinrichtung.

Desintegrator.

Treibstoff-Förderaggregat in Motorfahrzeugen

Mechanische Einrichtung zur Deblockierung einer Umwälzpumpe.

Pumpe zum Fördern oder Umwälzen von flüssigen und gasförmigen Medien.

Vorrichtung zur Beschleunigung des Wasserumlaufes in Warmwasserheizungen.

Achsial-Pumpe.

Kreiselpumpe zum Fördern oder Umwälzen von breiige, faserige, knollige und ähnliche Feststoffe enthaltenden Flüssigkeiten.

Pump Assembly, System and Method for Controlled Delivery of Molten Metal to Molds

Disclosed is a centrifugal molten metal pump assembly and associated system for controlled delivery of molten metal to molds. The pump assembly comprises a shaft, an impeller coupled to the shaft, a controller to control a rotational speed of the impeller according to a programmable fill profile while delivering the molten metal to the mold. In some embodiments, the pump assembly further comprises a throttle to manipulate a flow rate or pressure of the molten metal relative to a rotational speed of the impeller. The associated system comprises a melting furnace and one or more holding furnaces, each holding furnace including at least one pump assembly therein. Each holding furnace may be of an open configuration to allow for uninterrupted flow of the molten metal from the melting furnace. The system may provide controlled delivery of the molten metal to the mold at a desired flow rate or pressure. 1. A system to deliver molten metal to one or more molds , the system comprising:a holding furnace; and a shaft;', 'an impeller coupled to the shaft and configured to direct the molten metal to the at least one mold; and', 'a controller to control a rotational speed of the impeller according to a programmable fill profile of the at least one mold., 'a pump assembly within the holding furnace to deliver the molten metal to at least one mold associated with the pump assembly, the pump assembly comprising2. The system of claim 1 , further comprising heating elements positioned underneath the holding furnace to heat the molten metal in the holding furnace.3. The system of claim 1 , further comprising:a melting furnace; anda second holding furnace,wherein the holding furnace and the second holding furnace are each of an open configuration and configured to receive the molten metal from the melting furnace to allow for uninterrupted flow of the molten metal from the melting furnace.4. The system of claim 3 , further comprising:a transfer pump configured to receive the molten ...

HYDRODYNAMIC COUPLING

The invention concerns a hydrodynamic coupling, 1. A hydrodynamic coupling ,{'b': 1', '1', '1', '2', '3, '. having a pump wheel () and a turbine wheel (), which form together a toroidal working chamber () which can be filled with working medium;'}{'b': 1', '2', '4', '3', '5', '6', '7', '3, '. with a closed working medium circuit (), which extends from the working chamber () via a working chamber outlet (), an external circuit branch () and a working chamber inlet () back into the working chamber ();'}{'b': 1', '3', '8', '3', '4', '3', '3', '9', '3', '4, '. with a storage chamber () positioned outside the working chamber () and outside the closed working medium circuit (), for receiving the working medium evacuated from the working chamber () for reducing the filling level of the working chamber (), which is connected via a connection for conveying the working medium () outside the working chamber () to the closed working medium circuit (); wherein'}{'b': 1', '4', '8', '10, '. the storage chamber () is designed as a confined space which is pressure-tight to the surrounding atmosphere, having a control pressure port () so as to forcibly displace the working medium;'}characterised in that{'b': 1', '5', '8', '3, '. the storage chamber () is designed as an annular chamber, which extends inside the hydrodynamic coupling radially outside the working chamber () around it.'}2812. The hydrodynamic coupling according to claim 1 , characterised in that the storage chamber () is designed as a stationary chamber and is in particular separated by a stationary partition wall from the pump wheel () and the turbine wheel ().311121314151121621311121317561867984. The hydrodynamic coupling according to claim 1 , characterised in that the hydrodynamic coupling is enclosed by a housing () claim 1 , comprising two front sides ( claim 1 , ) opposite to one another claim 1 , which are connected to one another by a circumferential wall () claim 1 , whereas in particular the drive unit () for ...

Pump for loop reactor

The present invention relates the use of a pump in a loop reactor for the production of polyethylene, as well as a reactor comprising such pump and methods for producing polyolefin by means of such reactor. The pump according to the invention is characterized in that it is an axial flow impeller circulation pump, wherein the impeller comprises 6 blades and wherein the pump is fixed on a spring supported frame. Use of the pump according to the present invention allows for preparation of homogeneous polyethylene products that meet high quality standards from the complicated ethylene polymerization mixtures while at the same time being produced with low energy consumption.

Involute Jet Pump

An involute jet pump includes a spiral blade, a permanent magnet cylinder rotor having a plurality of magnetic poles and a stator armature. The rotor is a hollow ring body and fastened at an outside of the spiral blade. Magnetic fields of adjoined magnetic poles are different. The stator armature is disposed at an outside of the rotor. The stator coil has rotating magnetic field after electrifying, and the magnetic field of the stator can be electrically modulated. The rotor drives the spiral blade for rotating due to modulated rotating magnetic field of the stator. The rotor embedded with the spiral blade is placed inside the stator armature. The whole volume of the involute jet pump can be effectively reduced. A magnetic field induction generated between the rotor and the stator drives the rotor embedded with the spiral blade for rotating.

Information processing apparatus and image forming apparatus

An information processing apparatus includes a fan having an impeller. The fan further has a first side and a second side opposite to each other. The information processing apparatus further includes a frame to which the fan is mounted in a predetermined orientation so that the first side of the fan faces the frame. The frame has a ventilation opening facing the impeller. A resilient member is provided on the frame so as to face the fan. The fan has a supporting member on the first side and an opening on the second side. The supporting member faces the resilient member.

EXHAUST PUMP

Provided is an exhaust pump that comprises connecting opening portions that can be deburred easily and that are suitable for enhancing gas evacuation performance. A rotor (a cylindrical rotating member) of an exhaust pump comprises a plate body that has a ring-like projection on a reverse side outer peripheral section of the rotor, and a cylindrical body that is fitted into an outer periphery of the ring-like projection. Connecting opening portions of the exhaust pump comprise holes that are formed by notching an outer peripheral section of the plate body and an outer peripheral section of the ring-like projection, and a portion (specifically, a hole) of the holes that opens in the form of a horizontal hole is covered by an outer-peripheral upper end portion of the cylindrical body. 1. A exhaust pump , comprising:a cylindrical rotating member;support means for rotatably supporting said cylindrical rotating member about an axis thereof;a driving means for rotationally driving said cylindrical rotating member;an outer cylindrical fixed member disposed so as to surround the outer periphery of said cylindrical rotating member;an inner cylindrical fixed member disposed so as to be surrounded by an inner periphery of said cylindrical rotating member;a helical outer thread groove exhaust passage provided between said cylindrical rotating member and said outer cylindrical fixed member;a helical inner thread groove exhaust passage provided between said cylindrical rotating member and said inner cylindrical fixed member; andconnecting opening portions that are opened in said cylindrical rotating member and that lead a part of gas existing in the vicinity of the outer periphery of said cylindrical rotating member to said inner thread groove exhaust passage,wherein said cylindrical rotating member has a plate body having a ring-like projection at a reverse side outer peripheral section of said cylindrical rotating member, and a cylindrical body that is fitted into an outer ...

TURBOMACHINE COMPONENT TEMPERATURE CONTROL

Apparatus and methods for expanding a process fluid are disclosed. The apparatus includes a casing having an inlet and an outlet, and a component carrier disposed in the casing. The component carrier and the casing defining a cavity therebetween, and the component carrier at least partially defines a process flowpath fluidly communicating with the inlet and the outlet of the casing. The apparatus also includes a rotor disposed at least partially in the component carrier, with the rotor at least partially defining a first expansion stage intersecting the process flowpath. The apparatus also includes a bleed port extending from the process flowpath at a first point of the process flowpath to the cavity, to provide a thermal buffer fluid to the cavity. 1. An apparatus for expanding a process fluid , comprising:a casing having an inlet and an outlet;a component carrier disposed in the casing, the component carrier and the casing defining a cavity therebetween, and the component carrier at least partially defining a process flowpath fluidly communicating with the inlet and the outlet of the casing;a rotor disposed at least partially in the component carrier, the rotor at least partially defining a first expansion stage intersecting the process flowpath; anda bleed port extending from the process flowpath at a first point of the process flowpath to the cavity, to provide a thermal buffer fluid to the cavity.2. The apparatus of claim 1 , further comprising a return port extending from the cavity to a second point of the process flowpath claim 1 , the second point being downstream from the first point claim 1 , to return at least a portion of the thermal buffer fluid to the process flowpath.3. The apparatus of claim 2 , further comprising:first and second pressure break-down seals configured to at least partially seal the component carrier and the shaft; anda low-pressure feed port extending at least partially through the component carrier and to a point between the first ...

Aircraft Airflow Modulation System and Method

The present invention relates to a mechanical system and method that modulates airflow in an aircraft inlet diffuser that is used in conjunction with an aircraft engine that integrates both a center turbine engine and a high Mach engine such as a constant volume combustor (CVC) arrangement or ramjet arrangement with intakes formed co-centrically about the turbine. The modulation system uses two articulating components, a movable air flow duct and an articulating cone. The air flow duct, in a first position, is in exclusive air flow communication with the circular intake face of the turbine in a first position to receive air from the intake diffuser. In this configuration the expandable cone is in a retracted position and does not redirect airflow and allows the aircraft to operates in low speed mode as only the turbo jet receives airflow. In a transition speed mode, the air flow duct is retracted to allow air flow to both the turbo jet and the CVC. At its widest expanse, the articulating cone completely covers the turbo jet circular intake face directing air solely to the high Mach aircraft engine to allow the aircraft to operate in high speed mode. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. A method of propelling an aircraft having an integrated turbine and a plurality of high Mach aircraft engines disposed about the integrated turbine , the method comprising:positioning a translatable cylindrical air duct upstream of the turbine and high Mach aircraft engines; andtranslating the air duet from the first position wherein airflow through the air duct is communicated to both the turbine and the plurality of high Mach aircraft engines to generate a thrust on the aircraft in a first prolusion mode, to a second position wherein the air duct substantially ...

Pollutants Collecting Pump for Water Surface

A pollutant collecting pump for water surface comprises a power device () and a pollutant collecting barrel (). The power device () is connected to the pollutant collecting barrel (). A pollutant inlet () is provided on the upper portion of the pollutant collecting barrel (), and a pollutant outlet () is provided on the lower portion of the pollutant collecting barrel (). A blade () is provided outside the pollutant collecting barrel (), and an axis of the pollutant collecting barrel () is perpendicular to a rotating surface of the blade (). The pollutant inlet () is positioned above the blade (). The pollutant collecting pump for water surface is adapted to collect pollutants distributed on water surface with low density and small thickness, and has the advantages in simple structure, low manufacturing cost, convenient operation and thorough collection. 1. A pollutant collecting pump for water surface , comprising a power device and a pollutant collecting barrel , wherein the power device is connected to the pollutant collecting barrel , and the pollutant collecting barrel is provided with a pollutant inlet on its upper portion , a pollutant outlet on its lower portion , and a blade on its outside , and wherein the pollutant collecting barrel has an axis perpendicular to a rotating surface of the blade , and the pollutant inlet is positioned above the blade.2. The pollutant collecting pump for water surface according to claim 1 , wherein further comprising a flow stabilizing column which is arranged coaxially with respect to the pollutant collecting barrel claim 1 , and the pollutant inlet is arranged adjacent to the flow stabilizing column.3. The pollutant collecting pump for water surface according to claim 2 , wherein the flow stabilizing column is configured to be in form of cylinder or spiral structure.4. The pollutant collecting pump for water surface according to claim 1 , wherein a water jacket is located between the blade and the power device.5. The ...

PUMP APPARATUS

A pump apparatus includes: a stationary shaft; a rotation-regulating member having a coil main body wound around the stationary shaft, the rotation-regulating member being permitted to rotate in a direction of loosening the coil main body and the rotation-regulating member being restrained from rotating in a direction of tightening the coil main body; a driven rotatable member that may rotate around the stationary shaft when a driving force of a driving source is transmitted; and a suction pump that has a rotary member driven together with rotation of the driven rotatable member and that performs a suction operation when the rotary member rotates. The suction pump is configured such that the rotation-regulating member rotates in the tightening direction of the coil main body when the driven rotatable member rotates in a direction opposite to a direction in which the driven rotatable member performs the suction operation. 1. A pump apparatus comprising:a stationary shaft;a rotation-regulating member having a coil main body wound around the stationary shaft, the rotation-regulating member being permitted to rotate in a direction of loosening of the coil main body to increase a diameter of the coil main body and the rotation-regulating member being restrained from rotating in a direction of tightening of the coil main body to decrease the diameter of the coil main body;a driven rotatable member to which an end of the coil main body of the rotation-regulating member is attached, the driven rotatable member being able to rotate around the stationary shaft when a driving force of a driving source is transmitted to the driven rotatable member; anda suction pump having a rotary member that is driven together with rotation of the driven rotatable member, the suction pump being configured to perform a suction operation when the rotary member rotates while pressing a flexible tube;wherein the suction pump is configured such that the rotation-regulating member rotates in the ...

Ejector and method

In an aspect of the invention there is provided fluid pump apparatus comprising a plurality of ejectors, the apparatus having at least one motive fluid inlet arranged to supply motive fluid to the apparatus, at least one suction fluid inlet arranged to supply suction fluid to the apparatus and a common discharge outlet from which motive fluid and suction fluid that have passed through the ejectors may be expelled from the apparatus, each ejector having a respective injector portion and a respective diffuser portion, the injector portion being arranged to inject motive fluid from at least one said at least one motive fluid inlet into the diffuser portion thereby to draw suction fluid into the diffuser portion from at least one said at least one suction fluid inlet, the diffuser portion having a Venturi portion, each ejector having a respective flow stabilisation portion downstream of the Venturi portion thereof, the flow stabilisation portion being arranged to stabilise a flow of motive fluid and suction fluid therethrough before the respective flows of fluid through each ejector meet downstream of the ejectors, wherein the flow stabilisation portion comprises a flow stabilisation conduit of substantially constant diameter and a length substantially equal to at least the diameter thereof.

VACUUM PUMP

The invention relates to a vacuum pump having at least one molecular pump stage, in particular a Holweck stage, which includes a rotor member which forms the pump-active surface of the molecular pump stage and having at least one side channel pump stage which is arranged downstream of the molecular pump stage and which includes a plurality of rotor elements, wherein the rotor elements of the side channel pump stage are supported by the rotor member of the molecular pump stage. The invention further relates to a vacuum pump having at least one molecular pump stage, in particular a Holweck stage, and having at least one side channel pump stage which is arranged downstream of the molecular pump stage and which includes a plurality of rotor elements, wherein the side channel pump stage is arranged between a pump inlet and the molecular pump stage. 11234501218124848183412. A vacuum pump having at least one molecular pump stage () which includes a rotor member () which forms the pump-active surface () of the molecular pump stage () , and having at least one side channel pump stage () which is arranged downstream of the molecular pump stage () and which includes a plurality of rotor elements () , wherein the rotor elements () of the side channel pump stage () are supported by the rotor member () of the molecular pump stage ().2485834. A vacuum pump in accordance with claim 1 , wherein the rotor elements () are arranged outside a region () enveloped by the rotor member ().33430. A vacuum pump in accordance with claim 1 , wherein the rotor member () is supported by a rotor hub ().4483434485034. A vacuum pump in accordance with claim 1 , wherein the rotor elements () are arranged at a free axial end of the rotor member () and/or project from the rotor member () in an axial direction; wherein and/or the rotor elements () extend in an axial direction beyond the pump-active surface () of the rotor member ().5344648. A vacuum pump in accordance with claim 1 , wherein the rotor ...

Vacuum Pump

In a rotor blade cylindrical portion or a stator portion in which thread grooves are formed, convex surfaces (thread groove peak surfaces) configuring the peak sections of the thread grooves are cut by a desired amount over the entire circumference (a circumferential direction of the thread grooves) of a certain range in an axial direction. As a result, the gap on the lower side of the thread groove portion can partially be expanded by cutting the thread groove peak surfaces by a desired amount. 1. A vacuum pump comprising:a casing in which an inlet port and an outlet port are formed;a stator portion disposed on an inner side surface of the casing;a rotating shaft enclosed in the casing and supported rotatably;a rotor portion fixed to the rotating shaft;a first gas transfer mechanism that has rotor blades disposed radially from an outer circumferential surface of the rotor portion, and stator blades protruding from an inner side surface of the stator portion toward the rotating shaft, and transfers, to the outlet port, gas suctioned from the inlet port by an interaction between the rotor blades and the stator blades; anda second gas transfer mechanism that is disposed on the outlet port side of the first gas transfer mechanism, has a thread groove on either one of opposing surfaces of the rotor portion and the stator portion, transfers, to the outlet port, the gas suctioned from the inlet port, and forms a clearance between thread groove convex surfaces formed in the thread groove and an opposing surface facing the thread groove convex surfaces,wherein the second gas transfer mechanism has a product contact avoidance structure in which a portion of the clearance is larger than a clearance between the thread groove convex surfaces formed on the inlet port side of the thread groove and the opposing surface facing the thread groove convex surfaces.2. The vacuum pump according to claim 1 , wherein the product contact avoidance structure has a structure in which each of ...

Regenerative blower with a convoluted contactless impeller-to-housing seal assembly

A regenerative blower includes an annular housing assembly that surrounds a rotating impeller and defines a toroidal flow channel, an inlet to admit fluid to the toroidal flow channel, an outlet to discharge fluid from the toroidal flow channel, a low fluid-pressure region of the toroidal flow channel proximate to the inlet, and a high fluid-pressure region of the toroidal flow channel proximate to the outlet. A non-contact interaction between concentric surface contours of the impeller and the housing assembly form opposed concentric fluid pathways between the impeller and the housing assembly from the high to low fluid-pressure regions of the toroidal flow channel. The opposed concentric fluid pathways are so convoluted as to restrict fluid from flowing therethrough from the high fluid-pressure region of the toroidal flow channel to the low fluid-pressure region of the toroidal flow channel.

VARIABLE TURBINE/COMPRESSOR GEOMETRY

A variable turbine geometry may have a blade bearing ring and guide blades, each rotatably mounted therein via one of a plurality of respective blade bearing pins. An adjusting ring for adjusting the rotary position of the guide blades may be arranged on a side of the blade bearing ring facing away from the guide blades. The cover disc may define through-openings aligned with the blade bearing pins of the guide blades. The blade bearing ring may define at least one channel configured to create a pressure equalization between the control space and the flow space. 1. A variable turbine geometry , comprising: a blade bearing ring and guide blades each rotatably mounted therein via one of a plurality of respective blade bearing pins ,an adjusting ring surrounded by a control space for adjusting the rotary position of the guide blades arranged on a side of the blade bearing ring facing away from the guide blades,guide blade vanes of the respective guide blades arranged in a flow space between the blade bearing ring and a cover disc,wherein in the cover disc defines through-openings aligned with the blade bearing pins of the guide blades, andwherein the blade bearing ring defines at least one channel configured to create a pressure equalization between the control space and the flow space.2. The variable turbine geometry according to claim 1 , wherein the cover disc is part of a guide blade cage.3. The variable turbine geometry according to claim 1 , wherein the through-openings have a smaller diameter than the blade bearing pins and are directly directed at a face end of the associated guide blade vane.4. The variable turbine geometry according to claim 1 , wherein the at least one channel is arranged adjacently to the blade bearing pins.5. The variable turbine geometry according to claim 1 , wherein the channel runs parallel to the blade bearing pins.6. The variable turbine geometry according to claim 1 , further comprising a milled portion arranged in the region of a ...

COMPRESSOR INTAKE MIXER SYSTEM

A compressor intake mixer system for internal combustion gas engines having a compressed charge bypass system comprises a bypass charge and fuel pre-mixer connected in line with the charge bypass system to reduce pressure gradient between the high pressure bypass charge and the low pressure fuel. A single volume main mixer is connected to the compressor inlet downstream of the pre-mixer to mix the flow of premixed charge and air and provide a mixed gas to the compressor inlet. Thus a need for a separate volume for a fuel mixer and a bypass mixer is eliminated and a single volume is provided at the compressor inlet. The locational constraint of necessarily locating the volumes at the compressor inlet is also obviated by providing a pre-mixer. 1. A compressor intake mixer system for internal combustion gas engines having a compressed charge bypass system comprising a compressor , a bypass charge line connected downstream of the compressor to direct a high pressure bypass charge from the compressor for recirculation , a bypass charge control valve adapted to govern a flow of bypass charge through the bypass charge line , a fuel supply line adapted to carry low pressure fuel , a fuel control valve and an air supply source , a bypass charge and fuel pre-mixer including a pre-mixer housing positioned along said bypass charge line downstream of the bypass charge control valve, said pre-mixer connected to said fuel supply line and adapted to reduce pressure gradient between the high pressure bypass charge and the low pressure fuel and provide a flow of premixed charge of fuel and bypass charge; and', 'a single volume main mixer including a mixer housing fluidly connected between the air supply source and the compressor, said mixer housing fluidly connected to said bypass charge line downstream of said pre-mixer housing, to mix said flow of premixed charge and air from the air supply source and provide a mixed gas to the compressor., 'said compressor intake mixer system ...

Mold pump assembly

A molten metal pump assembly ( 10 ) and method to fill complex molds with molten metal, such as aluminum. The pump assembly includes an elongated shaft ( 16 ) connecting a motor ( 14 ) to an impeller ( 22 ). The impeller is housed within a chamber ( 18 ) of a base member such that rotation of the impeller draws molten metal into the chamber at an inlet ( 48 ) and forces molten aluminum through an outlet ( 50 ). A first bearing ( 36 ) is adapted to support the rotation of the impeller at a first radial edge ( 32 ) and a second bearing ( 38 ) is adapted to support the rotation of the impeller at a second radial edge. A bypass gap ( 60 ) is interposed between the second bearing and the second radial edge. Molten metal leaks through the bypass gap at a predetermined rate to manipulate a flow rate and a head pressure of the molten metal such that precise control of the flow rate is achieved.

Axial flow pump having a non-circular outlet cross-section

The invention relates to a hydraulic pump ( 10 ) comprising a pump shaft ( 52 ) and a casing ( 46 ) delimiting a liquid circulation duct ( 44 ) in which the cross-section of the outlet orifice ( 12 ) is flattened and is oriented such that the liquid outlet direction ( 14 ) is inclined from a longitudinal axis ( 22 ) of the pump shaft passing through the casing, the casing comprising a first segment ( 100 a ) in which the inside surface ( 102 a ) has a circular cross-section centred on said longitudinal axis ( 22 ) and surrounding a pump impeller ( 60 ) supported on the pump shaft ( 52 ). According to the invention, the first segment ( 100 a ) has a downstream end starting from which the cross-section of the casing inside surface becomes flattened.

Fan module and electronic device

The disclosure provides a fan module and an electronic device. The fan module includes a hub and a plurality of blades. The blades are mounted around the hub, and each of the blades has a first end is connected to a periphery of the hub and a second end that is relatively away from the hub. A first axial direction distance in the axial direction is provided between a first point of the first end that is relative away from the top surface and the top surface. A second axial direction distance in the axial direction is provided between a second point of the first end that is near the top surface and the top surface. A ratio of the second axial direction distance to the first axial direction distance is 0.4 to 0.5.

PUMP ASSEMBLY WITH A VERTICAL PUMP ARRANGED IN A CANISTER

A pump assembly includes a vertical pump arranged in a canister. The vertical pump includes a pump column disposed between a pump head and a pump bowl in an axial direction. The pump is arranged in the pump column and is configured to pump a fluid a column inlet at the pump bowl to a column outlet at the pump head. The pump column is supported so as to be stabilized by at least two damping arms disposed on an outer surface of the pump column, and each damping arm has an support end to support a respective damping arm on an inner surface of the canister in a radial direction perpendicular to the axial direction. Each support end is movable independently from each other support end with respect to the axial direction. 1. A pump assembly comprising:a vertical pump arranged in a canister, the vertical pump comprising a pump column disposed between a pump head and a pump bowl in an axial direction, a pump being arranged in the pump column and configured to pump a fluid a column inlet at the pump bowl to a column outlet at the pump head, the pump column supported so as to be stabilized by at least two damping arms disposed on an outer surface of the pump column, each damping arm of the at least two damping arms has an support end to support a respective damping arm on an inner surface of the canister in a radial direction perpendicular to the axial direction, each support end being movable independently from each other support end with respect to the axial direction.2. The pump assembly in accordance with claim 1 , wherein the pump column and each of the damping arms defines a respective angle that is about 10° to 80°.3. The pump assembly in accordance further comprising a vibration damper claim 1 , the vibration damper comprising a holding device claim 1 , and each damping arm is mounted to the holding device.4. The pump assembly in accordance with claim 3 , wherein the holding device is mounted around the pump column and has a shape corresponding to the pump column.5. ...

Active sealing ring, in particular for an auto coupling

A sealing ring provides a fluid seal between a first flange and a second flange. The sealing ring forms a tubular element and includes a tapering wall member defining an interior funnel-shaped through-going opening extending axially and tapering from a proximal end to a distal end. The tapering wall member is made from a resilient material proving an axial deflection of the tapering wall member when exposed to an axial force.

BLOOD PUMP WITH SEPARATE MIXED-FLOW AND AXIAL-FLOW IMPELLER STAGES AND MULTI-STAGE STATORS

A pump for a fluid which can be blood has a stator housing and a rotor hub with leading and trailing portions and an intermediate portion disposed therebetween. At least one impeller blade at the leading portion drives circumferential and axial components of a flow into a pump annulus or intermediate pathway portion. At least one stator blade extends radially inward from the stator housing within the intermediate pathway portion and is configured to reduce a circumferential component of the flow. 1. An implantable blood pump comprising:a stator housing including an inlet and an outlet and defining a fluid pathway therebetween;a rotor hub disposed within the stator housing, the rotor hub defining a diameter and a rotational axis extending from the inlet to the outlet of the stator housing; anda stator blade extending inward from the stator housing and defining a length less than the diameter of the rotor hub.2. The blood pump of claim 1 , further comprising an inlet stator blade extending inward from the stator housing within the inlet.3. The blood pump of claim 2 , wherein the rotor hub includes a body having a leading portion including a conical geometry proximate the inlet of the stator housing claim 2 , a trailing portion proximate the outlet of the stator housing claim 2 , and an intermediate portion extending between the leading portion and the trailing portion claim 2 , the intermediate portion of the rotor hub defining an intermediate portion of the fluid pathway claim 2 , and the stator blade projects within the intermediate portion of the fluid pathway.4. The blood pump of claim 3 , wherein the inlet stator blade defines the fluid pathway from the inlet to the leading portion of the body of the rotor hub claim 3 , and the inlet stator blade is configured to reduce a pre-rotation of a fluid within the inlet.5. The blood pump of claim 4 , wherein the inlet stator blade includes a distal-most portion facing the rotational axis of the rotor hub.6. The blood ...

Turbine engine provided with a lubrication unit

A turbine engine includes two rotary shafts and a lubrication unit. The lubrication unit has at least one pump which a casing inside of which a rotor is mounted and driven by one of the rotary shafts. The pump casing is rotated by the other rotary shaft such that the actuation of the pump depends on the difference between rotational speeds of the shafts. The shafts are a drive shaft and a fan shaft, respectively, wherein the fan shaft is driven by the drive shaft by means of a reduction gear which is lubricated by the lubrication unit. The reduction gear is annular and the pump passes axially therethrough.

AXIAL FAN

An axial fan includes a housing, an upper motor, and a lower motor. The housing includes an upper housing and a lower housing. A lower peripheral wall of the lower housing includes first engaging portions and lower protruding pieces. The lower protruding pieces oppose the first engaging portions in an axial direction and protrude axially upward from an axially upper surface. An upper peripheral wall of the upper housing includes upper engaging claws and upper notch grooves. The upper engaging claws extend axially downward from an axially lower surface, and include a second engaging portion that engages with the first engaging portion in a lower end portion. The upper notch grooves are notched axially upward from the axially lower surface radially inward of the upper engaging claw. At least a portion of the lower protruding pieces is located in the upper notch grooves. 1. An axial fan comprising:a housing that surrounds a vertically extending central axis, and includes an upper housing in an axially upper portion and a lower housing in an axially lower portion;an upper motor that is accommodated in the upper housing and rotates an upper impeller about the central axis; anda lower motor that is accommodated in the lower housing and rotates a lower impeller about the central axis; whereinthe upper housing includes a cylindrical upper peripheral wall covering the upper impeller and the upper motor from a radially outer side;the lower housing includes a cylindrical lower peripheral wall covering the lower impeller and the lower motor from the radially outer side;the lower peripheral wall includes first engaging portions on a radially outer surface, and lower protruding pieces opposing the first engaging portions in an axial direction and protruding axially upward from an axially upper surface;the upper peripheral wall includes upper engaging claws each extending axially downward from an axially lower surface and including a second engaging portion engaging with the first ...

Apparatuses, methods and systems for harnessing fluid flow with flexible mechanical transducers

The APPARATUSES, METHODS AND SYSTEMS FOR HARNESSING FLUID FLOW WITH FLEXIBLE MECHANICAL TRANSDUCERS include mechanisms that include flexible elements with strained deformations. In some implementations, oscillations of strained deformations in fins are excited by a moving fluid. By coupling the fin structure to an electrical generator and/or pump, energy from the moving fluid can be converted into electrical energy or used to perform useful mechanical work. In some implementations, the fin may be coupled to a motor or other actuator which causes the strained deformations to move, thereby imparting force onto the fluid to move or mix fluid or perform other useful work.

Fan device

A fan device for a table of a user comprising a fan, a pivot pin for tilting and a mechanism, for connection to a desktop in the form of two clips or a bracket with screws. It is positioned between the user and the desktop. The pivot pin for tilting is positioned beyond the edge of and within the thickness of the desktop, allowing for a maximum height of protrusion of the fan above and below the desktop less than the dimensions of the fan and allowing to direct the air flow to the greater part of the user area. The technical result is the decrease in the height of protrusion of the fan above and below the desktop.

FLUID PUMP

A fluid pump includes an inlet for introducing fluid into the fluid pump; an outlet for discharging the fluid from the fluid pump; a motor having an armature which rotates about an axis such that the armature is supported at one end by a first bearing and at second end by a second bearing, the motor also having a stator which circumferentially surrounds the armature such that a fluid passage is defined radially between the armature and stator through which the fluid flows from the inlet to the outlet; a pumping arrangement which is rotated by the armature and which pumps the fluid from the inlet to the outlet; a flow impedance member extending axially in the fluid passage which impedes circumferential flow of the fluid within the fluid passage, thereby generating a pressure gradient circumferentially within the fluid passage which applies a lateral force to the armature. 1. A fluid pump comprising:an inlet for introducing fluid into said fluid pump;an outlet for discharging said fluid from said fluid pump;a motor having an armature which rotates about an axis such that said armature is supported at one end by a first bearing and at second end by a second bearing, said motor also having a stator which circumferentially surrounds said armature such that a fluid passage is defined radially between said armature and said stator through which said fluid flows from said inlet to said outlet;a pumping arrangement which is rotated by said armature and which pumps said fluid from said inlet to said outlet;a flow impedance member extending axially in said fluid passage which impedes circumferential flow of said fluid within said fluid passage, thereby generating a pressure gradient circumferentially within said fluid passage which applies a lateral force to said armature.2. A fluid pump as in wherein said flow impedance member is configured to apply said lateral force in a direction which is opposite in direction to a side load applied to said armature by said pumping ...

Axial flow pump with integrated motor

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

PUMP ARRANGEMENT

The subject matter of the present invention is a pump arrangement (), in particular for use in the body's own vessels, having a pump () and a sheath () receiving the pump, bounding a flow passage (S) and having a distal intake opening () and proximal outflow opening () for producing a driving flow by means of the pump, wherein the pump is arranged in a first fluid-tight section () having the distal intake opening and a second fluid-tight section () includes the proximal outflow opening. In accordance with the invention, a further inlet opening () is present between the first section and the second section and is arranged between the intake opening and the outflow opening, with the first section and the second section being arranged with respect to one another such that the inlet opening opens into the flow proximal to the pump. 115-. (canceled)16. A blood pump assembly comprising:an elongate catheter having a proximal end and a distal end;a rotor disposed at a distal end of the elongate catheter; a first fluid-tight section disposed at a distal end of the housing, the first fluid-tight section comprising a distal end defining a distal opening, a proximal end defining a proximal opening, and a central bore extending from the distal opening to the proximal opening, the central bore being radially fluid tight between the distal opening and the proximal opening; and', 'a second fluid-tight section at least partially formed of a flexible material and disposed at a proximal end of the housing, the second fluid-tight section comprising a first blood inlet disposed at a distal end of the second fluid-tight section, and a blood outlet disposed at a proximal end of the second fluid-tight section, wherein the distal end of the second fluid-tight section defines the first blood inlet, and wherein the second fluid-tight section is radially fluid-tight between the first blood inlet and the blood outlet;, 'a housing at least partially surrounding the rotor, the housing ...

MAGNETIC DRIVE, SEAL-LESS PUMP

A magnetic drive, seal-less combination axial air and water pump includes a housing having an inlet and an outlet at least one impeller mounted for rotation within the housing, and a magnetic drive surrounding the first rotor and the second rotor, the magnetic drive being configured to transmit torque to the first rotor and a second rotor at a location radially spaced from a central axis of the first rotor and the second rotor. 1. A magnetic drive , seal-less pump , comprising:a housing having an inlet and an outlet;at least one impeller mounted for rotation within the housing; anda magnetic drive surrounding the first rotor and the second rotor, the magnetic drive being configured to transmit torque to the first rotor and a second rotor at a location radially spaced from a central axis of the first rotor and the second rotor.2. The pump of claim 1 , wherein:the magnetic drive includes an inner magnetic array and a outer magnetic array.3. The pump of claim 2 , wherein:the inner magnetic array is generally cylindrical and is positioned interior to a wall of the housing; andthe outer magnetic array is generally cylindrical and is positioned exterior to the wall of the housing.4. The pump of claim 1 , wherein:the location radially spaced from the central axis is an outer portion of the impeller.5. The pump of claim 1 , wherein:the pump is a linear pump.6. The pump of claim 1 , wherein:the pump is devoid of fluid seals.7. The pump of claim 1 , wherein:the at least one impeller includes a first impeller and a second impeller;wherein the first impeller is a water impeller configured to pump water and having a generally hollow shaft from which a plurality of blades extend; andwherein the second impeller is an air impeller configured to pump air and having a generally hollow shaft from which a plurality of blades extend.8. The pump of claim 7 , wherein:the air impeller has a greater number of blades than the water impeller.9. The pump of claim 8 , wherein:the air impeller ...

TWO-PORT HYDRODYNAMIC HEATER

A hydrodynamic heater includes an inlet port for receiving a stream of fluid from an external source and an outlet port for discharging a stream of heated fluid from the hydrodynamic heater. A hydrodynamic chamber operates to selectively heat fluid present within an interior region of the hydrodynamic chamber. The hydrodynamic chamber includes an inlet port and an outlet port located along an interior wall of the hydrodynamic chamber. The hydrodynamic chamber inlet port is fluidly connected to the inlet port of the hydrodynamic heater. The hydrodynamic heater includes a fluid metering device having an inlet fluidly connected to the hydrodynamic heater inlet port and an outlet fluidly connected to the inlet port of the hydrodynamic chamber. 1. A hydrodynamic heater comprising:a hydrodynamic heater inlet port for receiving a stream of fluid from an external source;a hydrodynamic heater outlet port operable for discharging a stream of heated fluid from the hydrodynamic heater;a hydrodynamic chamber operable to selectively heat a fluid present within an interior region of the hydrodynamic chamber when operating the hydrodynamic heater, the hydrodynamic chamber including a hydrodynamic chamber inlet port and a hydrodynamic chamber outlet port located along an interior wall of the hydrodynamic chamber, the hydrodynamic chamber inlet port fluidly connected to the hydrodynamic heater inlet port; andan inlet fluid metering device having an inlet fluidly connected to the hydrodynamic heater inlet port and an outlet fluidly connected to the hydrodynamic chamber inlet port.2. The hydrodynamic heater of further comprising:a stator; anda rotor coaxially aligned with and located adjacent the stator, the rotor operably rotatable about an axis of rotation relative to the stator, wherein the rotor and stator at least partially define the interior region of the hydrodynamic chamber.3. The hydrodynamic heater of claim 2 , wherein the hydrodynamic chamber outlet port is located a radial ...

PUMP ASSEMBLY FOR A DISHWASHING APPLIANCE

A pump assembly for a dishwashing appliance includes an inner diffuser shell defining a motor housing and an outer diffuser shell spaced apart from the inner diffuser shell to define a diffusing plenum. A motor positioned within the motor housing rotates a wash pump impeller and urges a flow of wash fluid through the diffusing plenum. Within the diffusing plenum, guide vanes extend between the inner diffuser shell and the outer diffuser shell to diffuse and direct the flow of wash fluid. The motor is powered by electrical wires that pass through a hole defined through the outer diffuser shell, through one of the plurality of guide vanes, and through the inner diffuser shell. 1. A pump assembly for a dishwashing appliance , the pump assembly defining an axial direction , a radial direction , and a circumferential direction , the pump assembly comprising:an inner diffuser shell defining a motor housing;an outer diffuser shell spaced apart from the inner diffuser shell to define a diffusing plenum;a plurality of guide vanes extending between the inner diffuser shell and the outer diffuser shell within the diffusing plenum;a motor positioned within the motor housing and comprising a drive shaft for rotating a wash pump impeller and urging a flow of wash fluid through the diffusing plenum; andone or more electrical wires for powering the motor, the electrical wires passing through one or more holes, each of the one or more holes being defined through the outer diffuser shell, one of the plurality of guide vanes, and the inner diffuser shell.2. The pump assembly of claim 1 , wherein the plurality of guide vanes vary in thickness to accommodate the one or more electrical wires.3. The pump assembly of claim 1 , wherein the one or more electrical wires comprises three electrical wires.4. The pump assembly of claim 3 , wherein each of the three electrical wires passes through a different hole of the one or more holes.5. The pump assembly of claim 1 , wherein the outer ...

BLOOD PUMP HOUSING COMPONENT

Blood pump assemblies and methods of manufacturing and operating blood pump assemblies are provided. The blood pump assembly includes a pump and an impeller blade rotatably coupled to the pump. The blood pump assembly also includes a pump housing component sized for passage through a body lumen and coupled to the pump. The pump housing component includes a peripheral wall extending about a rotation axis of the impeller blade. The peripheral wall includes an inner peripheral wall surface and an outer peripheral wall surface. The peripheral wall also includes one or more blood exhaust apertures. Each blood exhaust aperture in the one or more blood exhaust apertures is defined by an inner aperture edge and an outer aperture edge. Each inner aperture edge is chamfered between the inner peripheral wall surface and the outer peripheral wall surface. 133-. (canceled)34. A blood pump assembly comprising:a pump;an impeller blade rotatably coupled to the pump; anda pump housing component sized for passage through a body lumen and coupled to the pump, the pump housing component including a peripheral wall extending about a rotation axis of the impeller blade, the peripheral wall having:an inner surface,an outer surface, anda plurality of blood exhaust apertures, each blood exhaust aperture being defined by an inner edge and an outer edge; andwherein each blood exhaust aperture is blunted between the inner surface and the outer surface.35. The blood pump assembly of claim 34 , wherein the one or more blood exhaust apertures are circular-shaped.36. The blood pump assembly of claim 34 , wherein the outer edges of the plurality of blood exhaust apertures are rounded.37. The housing of claim 34 , wherein each rounded outer edge has a radius of about 40 microns or greater.38. The housing of claim 36 , wherein each rounded outer edge has a radius of about 105 microns or greater.39. The housing of claim 34 , wherein the entirety of each outer edge is rounded.40. The blood pump ...

FLUID PUMP HAVING AT LEAST ONE IMPELLER BLADE AND A SUPPORT DEVICE

The invention relates to a fluid pump comprising at least one impeller blade (″) which is rotatable about an axis of rotation () and conveys a fluid in operation and comprising a support device () which supports the at least one impeller blade (″) in at least one support region, wherein the support device is changeable between a first state in which the rotor is radially compressed and a second state in which the rotor is radially expanded; and wherein at least one impeller blade extends at least partly radially inwardly with respect to the axis of rotation () from the support region/support regions in the radially expanded state of the rotor. 1. A fluid pump having a rotor , the rotor comprising:at least one impeller blade which is rotatable about an axis of rotation and conveys a fluid in operation; anda support device which supports the at least one impeller blade in at least one support region, wherein the support device is changeable between a first state in which the rotor is radially compressed and a second state in which the rotor is radially expanded; and wherein at least one impeller blade extends at least partly radially inwardly with respect to the axis of rotation from the support region/support regions in the radially expanded state of the rotor.2. A fluid pump in accordance with claim 1 , wherein the predominant part of the region of the impeller blade/impeller blades conveying the fluid extends radially within the support region/support regions.3. A fluid pump in accordance with claim 2 , wherein the support region is arranged radially outwardly at the periphery of the region of the impeller blades conveying the fluid.4. A fluid pump in accordance with claim 1 , wherein the impeller blade/impeller blades is/are connected to the support device and said support device rotates with the impeller blade/impeller blades.5. A fluid pump in accordance with claim 1 , wherein the at least one impeller blade is conducted and journalled movably with respect to ...

SYSTEM AND METHOD FOR FLUID MANIPULATION

By manipulating the fluid flow in the proximity of an object such as a fuselage, a wing, or the hull of ship, the wave drag associated with this object can be substantially reduced. This can be accomplished by locally changing both the fluid flow velocity and the pressure of the fluid flow. 1. A system for reducing wave drag , the system comprising:an outer surface configured for receiving exterior fluid flow of a fluid;a channel coupled to the outer surface and configured for receiving an interior fluid flow of the fluid, the channel including a fluid inlet and a fluid outlet, the channel being configured to manipulate the interior fluid flow to reduce wave drag; wherein the channel comprises:a first fluid manipulation apparatus (“FMA”) configured to receive the interior fluid flow downstream of the fluid inlet and further configured to change speed and pressure of the fluid flow within the channel;a pressure containment apparatus (“PCA”) configured to receive the interior fluid flow downstream of the first FMA; anda second FMA configured to receive the interior fluid flow downstream of the PCA and upstream of the fluid outlet, the second FMA being configured to further change the speed and pressure of the interior fluid flow,wherein the free stream has a free stream velocity that is greater than a wave velocity of a wave within the free stream.2. The system of claim 1 , wherein the first FMA and/or second FMA comprises a converging duct.3. The system of claim 1 , wherein the first FMA and/or second FMA comprises a converging diverging duct.4. The system of claim 1 , wherein the first FMA and/or second FMA comprises a diverging duct.5. The system of claim 1 , wherein the first FMA and/or second FMA comprises a propeller or thrust generating apparatus.6. The system of claim 1 , wherein the first FMA and/or second FMA comprises a body force generating apparatus.7. The system of claim 1 , wherein the fluid is compressible.8. The system of claim 7 , wherein the fluid ...

Compressor and oil drain system

A compressor system is disclosed with a base structure configured to support a compressor. A removable oil reservoir is connectable with the base structure. An oil drain tube is configured to be in fluid communication with portions of the compressor system and the oil reservoir. The oil reservoir is configured to slidingly move relative to the base structure and engage with the oil drain tube in a fluid sealing arrangement.

Pump Having Edge Mounted O-Ring Seal

The present disclosure relates to a fluid pump having a pump housing and an inlet wall portion positioned adjacent the pump housing. The inlet wall portion has an extending portion which extends generally parallel to an inner surface of the pump housing. A motor is housed within the pump housing. An impeller is included which is responsive to the motor. An impeller retainer is disposed adjacent the impeller and includes a radiused corner portion. An O-ring is positioned at the radiused corner portion. The O-ring exerts a force non-perpendicular to the inner surface of the pump housing to form a seal against the inner surface of the pump housing and the extending portion of the inlet wall portion. 1. A fluid pump comprising:a pump housing;an inlet wall portion positioned adjacent the pump housing and including an extending portion extending generally parallel to an inner surface of the pump housing;a motor housed within the pump housing;an impeller responsive to the motor;an impeller retainer disposed adjacent the impeller and including a radiused corner portion;an O-ring positioned at the radiused corner portion; andthe O-ring exerting a force non-perpendicular to the inner surface of the pump housing to form a seal against the inner surface of the pump housing and the extending portion of the inlet wall portion.2. The fluid pump of claim 1 , wherein the O-ring has a radius approximately the same as a radius of the radiused corner portion.3. The fluid pump of claim 1 , further including an impeller housing positioned within the pump housing for housing the impeller claim 1 , the impeller housing including a leg portion projecting therefrom.4. The fluid pump of claim 3 , wherein the O-ring contacts a surface of the leg portion.5. The fluid pump of claim 4 , wherein the O-ring exerts a force at about a 45 degree angle relative to the inner surface of the pump housing.6. The fluid pump of claim 5 , wherein the wherein the O-ring simultaneously forms a three way seal ...

AIR DIFFUSER SYSTEMS, METHODS, AND APPARATUSES

Aircraft, air conditioning systems, and air diffusers that may be used to create a quiet, comfortable environment within an aircraft cabin are disclosed. The systems and apparatuses are configured to flow air at a rate that meets and/or exceeds the FAA minimum requirement of 0.55 lbs/min (about 250 g/min) per occupant. In use, even at higher flow rates, the systems and apparatuses are configured to create a quiet cabin experience, by contributing little to ambient cabin noise. Thus, the systems and apparatuses may be used to provide fresh air at a comfortable rate and a comfortable noise level. 1. A quiet aircraft cabin air diffuser comprising:an inlet section with an open interior, an inlet upstream end, and an inlet downstream end;a neck section with an open interior, a neck upstream end, and a neck downstream end, wherein the inlet downstream end is operatively coupled to the neck upstream end;an outlet section with an open interior, an outlet upstream end and an outlet downstream end, wherein the neck downstream end is operatively coupled to the outlet upstream end;an interior orifice plate; andan interior baffle that is downstream of the interior orifice plate;wherein the air diffuser is configured to generate a speech interference level of less than 50 dB when air flows through the inlet section to the outlet section at a rate of greater than 700g/min.2. The air diffuser of claim 1 , wherein the interior orifice plate is configured to create backpressure at the inlet upstream end.3. The air diffuser of claim 1 , wherein the interior baffle is configured to create a tortuous air flow path within the air diffuser.4. The air diffuser of claim 1 , wherein the interior baffle is configured to spread air flow across a lateral width of the interior of the outlet downstream end.5. The air diffuser of claim 1 , wherein the neck section has a transition region between the neck upstream end and the neck downstream end claim 1 , wherein the transition region has a non- ...

Counter rotating helico-axial pump

A counter rotating helico-axial pump is provided, the pump comprising: (a) an inner rotor comprising a plurality of outwardly extending helico-axial impeller vanes; (b) a hollow outer rotor comprising a plurality of inwardly extending helico-axial impeller vanes; (c) a single driving device configured to drive the inner rotor or the hollow outer rotor; and (d) a force transmission coupling joining the inner rotor and the hollow outer rotor and configured to permit rotation of the inner rotor and hollow outer rotor in opposite directions; wherein at least a portion of the inner rotor is disposed within the hollow outer rotor, and wherein the inner rotor, the hollow outer rotor and the helico-axial impeller vanes define a fluid flow path, and wherein the inner rotor and hollow outer rotor are configured such that at least some of adjacent helico-axial impeller vanes are configured to rotate in opposite directions.

Pump for Loop Reactor

The present invention relates the use of a pump in a loop reactor for the production of polyethylene, as well as a reactor comprising such pump and methods for producing polyolefin by means of such reactor. The pump according to the invention is characterized in that it is an axial flow impeller circulation pump, wherein the impeller comprises 6 blades and wherein the pump is fixed on a spring supported frame. Use of the pump according to the present invention allows for preparation of homogeneous polyethylene products that meet high quality standards from the complicated ethylene polymerization mixtures while at the same time being produced with low energy consumption. 112-. (canceled)13. An axial pump for circulating an olefin polymerization slurry through a loop reactor comprising:an impeller comprising at least 5 blades, wherein the axial pump is fixed on a spring supported frame.14. The axial pump according to claim 13 , wherein the impeller comprises at least 6 blades.15. The axial pump according to claim 13 , wherein the impeller comprises more than 6 blades.16. The axial pump according to claim 13 , wherein the blades have a blade angle ranging between 24° and 26°.17. The axial pump according to claim 13 , wherein the blades are made of inox.18. A loop reactor comprising:interconnected pipes defining a flow path for an olefin polymerization slurry; andan axial pump suitable for maintaining the olefin polymerization slurry in circulation in the loop reactor, wherein the axial pump comprises an impeller comprising at least 5 blades, and wherein the axial pump is fixed on a spring supported frame.19. The loop reactor according to claim 18 , wherein the impeller comprises at least 6 blades.20. The loop reactor according to claim 18 , wherein the impeller comprises more than 6 blades.21. The loop reactor according to claim 18 , wherein the blades have a blade angle ranging between 24° and 26°.22. The loop reactor according to claim 18 , wherein the blades are ...

HEART ASSIST DEVICE WITH EXPANDABLE IMPELLER PUMP

An impeller includes a hub and a blade supported by the hub. The impeller has a stored configuration in which the blade is compressed so that its distal end moves towards the hub, and a deployed configuration in which the blade extends away from the hub. The impeller may be part of a pump for pumping fluids, such as blood, and may include a cannula having a proximal portion with a fixed diameter, and a distal portion with an expandable diameter. The impeller may reside in the expandable portion of the cannula. The cannula may have a compressed diameter which allows it to be inserted percutaneously into a patient. Once at a desired location, the expandable portion of the cannula may be expanded and the impeller expanded to the deployed configuration. A flexible drive shaft may extend through the cannula for rotationally driving the impeller within the patient. 1. (canceled)2. A catheter pump comprising: a non-expandable portion;', 'an expandable portion extending between a proximal end and a distal end;', 'a nose grommet;', 'a plurality of inlet struts extending between the nose grommet and the expandable portion distal end; and', 'a plurality of discharge struts extending between the non-expandable portion and the expandable portion proximal end; and, 'a cannula comprisingan impeller disposed in the cannula, the impeller sized and shaped to be inserted into a heart of a patient.3. The catheter pump of claim 2 , wherein the plurality of inlet struts are configured to prevent obstructions from entering the cannula.4. The catheter pump of claim 2 , wherein the plurality of discharge struts are configured to act as stationary stator blades and remove swirl velocity from a discharge flow of the impeller.5. The catheter pump of claim 2 , wherein the plurality of discharge struts are flat linear elements.6. The catheter pump of claim 2 , wherein the plurality of discharge struts have an airfoil cross-section.7. The catheter pump of claim 2 , wherein the expandable portion ...

FAN ASSEMBLY FOR AN APPLIANCE

A fan assembly for an appliance is provided. The fan assembly includes a first plurality of blades and a second plurality of blades. Performance of the appliance can be improved and uniform fan assembly performance over a wide range of pressures can be provided by including the first and second pluralities of blades. 1. A dryer appliance comprising:a cabinet, said cabinet defining a vent;a drum rotatably mounted within said cabinet, said drum defining a chamber for receipt of articles for drying;a conduit that connects the chamber of said drum and the vent of said cabinet such that the chamber of said drum and the vent of said cabinet are in fluid communication;a motor; a support having a first surface and a second surface, the first surface of said support spaced apart from the second surface of said support along the axial direction;', 'a first plurality of blades mounted on the first surface of said support and extending away from the first surface of said support; and', 'a second plurality of blades mounted on the second surface of said support and extending away from the second surface of said support., 'a fan assembly in fluid communication with said conduit, said fan assembly having an axis of rotation about which said fan assembly is rotatable, said fan assembly being in mechanical communication with said motor; said fan assembly rotatable about the axis of rotation by said motor in order to urge a flow of air from the chamber of said drum to the vent of said cabinet through said conduit, said fan assembly defining a radial direction, a circumferential direction, and an axial direction; said fan assembly comprising2. The dryer appliance of claim 1 , wherein each blade of said first plurality of blades has a distal end that is spaced apart from the first surface of said support by about a first distance claim 1 , wherein each blade of said second plurality of blades has a distal end that is spaced apart from the second surface of said support by about a ...

ANNULAR LINEAR INDUCTION ELECTROMAGNETIC PUMP HAVING AXIAL GUIDE VANES

The present invention provides an annular linear induction electromagnetic pump having axial guide vanes, wherein m axial guide vanes are uniformly arranged in a flow channel of the electromagnetic pump in a circumferential direction, a magnitude of m is equal to a number of external stators, and a length of each of the guide vanes is determined together by the number of the external stators, a central radius of the flow channel, a magnetic Reynolds number, and a wave number of a traveling magnetic field. The axial guide vanes can significantly mitigate the impact on the flow field stability caused by uneven circumferential disturbances of the magnetic field and flow field, thereby achieving a flow stabilization effect and greatly improving the flow stability in operation under off-design conditions. 2. (canceled)3. The annular linear induction electromagnetic pump having the axial guide vanes according to claim 1 , whereina number m of the axial guide vanes is equal to the number of the external stators,m is greater than or equal to 6 and less than or equal to 10,a circumferential position of the axial guide vane in the flow channel is between two external stators,a thickness of the axial guide vane is ⅙ to ⅕ of a width of the flow channel, andan axial length is determined by the value of P.4. The annular linear induction electromagnetic pump having the axial guide vanes according to claim 1 , whereina winding of the coil winding is circumferentially wound in the slots of the external stators via a Y-type winding mode, and a number of pole-pairs is greater than or equal to 3 and less than or equal to 5.5. The annular linear induction electromagnetic pump having the axial guide vanes according to claim 1 , whereinthe axial guide vanes, the outer flow channel tube, the inner flow channel tube, and the positioning chuck are made of a demagnetized stainless steel material.6. The annular linear induction electromagnetic pump having the axial guide vanes according to ...

Mechanical Seal Including Recovery Port For Use With Pumps

A mechanical seal for an axial flow pump may include an annular seal housing configured to be received in a pump housing, the annular seal housing defining a shaft aperture configured for passage therethrough by a pump shaft of the axial flow pump. The annular seal housing may include a second seal housing face at least partially defining an annular first seal recess having a first inner diameter and configured to receive therein an annular stationary seal, such that the annular stationary seal provides a stationary seal against the pump shaft, an annular face seal recess having a second inner diameter greater than the first inner diameter and configured to receive therein a stationary face seal, and a recovery port extending from one or more of the first seal recess or the face seal recess to an exterior of the annular seal housing. 1. A mechanical seal for an axial flow pump , the mechanical seal comprising:{'claim-text': ['a first seal housing face;', {'claim-text': ['an annular first seal recess having a first inner diameter and configured to receive therein an annular stationary seal, such that the annular stationary seal provides a stationary seal against the pump shaft;', 'an annular face seal recess having a second inner diameter greater than the first inner diameter and configured to receive therein a stationary face seal; and', 'a recovery port extending from one or more of the first seal recess or the face seal recess to an exterior of the annular seal housing;'], '#text': 'a second seal housing face opposite the first seal housing face and at least partially defining:'}], '#text': 'an annular seal housing configured to be received in a pump housing, the annular seal housing defining a shaft aperture configured for passage therethrough by a pump shaft of the axial flow pump, the annular seal housing comprising:'}a stationary seal received in the annular first seal recess;a stationary face seal received in the annular face seal recess;an inner sleeve ...

PUMP FOR CONVEYING A FLUID

A pump for conveying a fluid includes a stationary housing, an impeller conveying the fluid from a low pressure region to a high pressure region, a shaft to rotate the impeller about an axial direction, and a separation device to restrict a flow of the fluid from the high pressure region to the low pressure region. The separation device includes a rotary part connected to the shaft, and a stationary part stationary with respect to the housing. The rotary and stationary parts face each other and delimit a gap between the stationary part and the rotary part. The gap is arranged between the high and low pressure regions. A recess is disposed in the stationary part or the rotary part, the recess including a bottom, and a non-metallic insert is disposed in the recess. A relief channel enables fluid communication between the bottom and the low pressure region. 1. A pump for conveying a fluid , comprising:a stationary housing;at least one impeller configured to convey the fluid from a low pressure region to a high pressure region;a shaft configured to rotate the impeller about an axial direction; anda separation device configured to restrict a flow of the fluid from the high pressure region to the low pressure region, the at least one impeller being mounted on the shaft, the separation device comprising a rotary part connected to the shaft in a torque proof manner, and a stationary part configured to be stationary with respect to the housing, the rotary part and the stationary part configured to face each other and to delimit a gap between the stationary part and the rotary part, the gap being arranged between the high pressure region and the low pressure region, an annular recess is disposed in at least one of the stationary part facing the rotary part, or the rotary part facing the stationary part, the recess comprising a bottom, and a non-metallic insert is disposed in the recess, and a relief channel is provided and configured to enable fluid communication between the ...

MULTI-FLUID CARGO PUMPS

A submerged electrical pump for liquefied hydrocarbon gasses that is adapted for use encompassing a range of different temperatures and viscosities is disclosed. Notable elements of some embodiments of multiple fluid pumps include bearings and bearing liners made from the same material, a motor larger enough to pump the most vicious and dense fluid, extra thick bearing liners, and a trial-and-error process for choosing other pump design specifications, such as impeller wear rings, bushings, and other critical radial clearances. 1. Turbomachinery for multiple liquefied hydrocarbon gasses , comprising:a bearing at an interface between a rotor and a stator;an inner bearing liner affixed to the rotor;an outer bearing liner affixed to the stator; andwherein the bearing, the inner bearing liner, and the outer bearing liner all consist of the same material; the bearing is disposed between the inner bearing liner and the outer bearing liner; and the bearing is lubricated with one of the multiple liquefied hydrocarbon gasses.2. The turbomachinery of claim 1 , wherein the inner bearing liner and outer bearing liner each comprise a thickness that is thick enough to prevent at least one of the inner bearing liner or the outer bearing liner from yielding under pressure applied to an outer liner surface at a coldest potential operating temperature.3. The turbomachinery of claim 1 , wherein at least one of a thickness of at least one of the inner bearing liner or the outer bearing liner claim 1 , or a size of the bearing is determined based on expansion or contraction of the same material under varying temperature conditions or varying pressure conditions associated with the multiple liquefied hydrocarbon gasses.4. The turbomachinery of claim 3 , wherein the varying temperature conditions are based on different boiling points of the multiple liquefied hydrocarbon gasses.5. The turbomachinery of claim 1 , wherein the same material of the bearing claim 1 , the inner bearing liner ...

MULTIPHASE PUMP

A multiphase pump includes a housing having a pump inlet and a pump outlet for a process fluid, an inlet annulus configured to receive the process fluid from the pump inlet, a discharge annulus configured to discharge the process fluid into the pump outlet, a pump rotor configured to rotate about an axial direction and arranged within the housing, the pump rotor being configured to convey the process fluid from the inlet annulus to the outlet annulus, and a return line configured to return the process fluid from the high pressure side to the low pressure side, the return line including an inlet configured to receive the process fluid, an outlet configured to discharge the process fluid and a control valve configured to open and close the return line, the inlet of the return line arranged directly at the discharge annulus. 1. A multiphase pump for conveying a multiphase process fluid from a low pressure side to a high pressure side , the multiphase pump comprising:a housing having a pump inlet and a pump outlet for the process fluid;an inlet annulus configured to receive the process fluid from the pump inlet;a discharge annulus configured to discharge the process fluid into the pump outlet;a pump rotor configured to rotate about an axial direction and arranged within the housing, the pump rotor being configured to convey the process fluid from the inlet annulus to the outlet annulus; anda return line configured to return the process fluid from the high pressure side to the low pressure side, the return line comprising an inlet configured to receive the process fluid, an outlet configured to discharge the process fluid and a control valve configured to open and close the return line, the inlet of the return line arranged directly at the discharge annulus.2. The multiphase pump in accordance with claim 1 , wherein the inlet of the return line and the pump outlet are disposed in a spaced relationship at the discharge annulus.3. The multiphase pump in accordance with ...

COMPRESSIBLE ROTOR FOR A FLUID PUMP

The invention relates to a rotor () for a fluid pump (), in particular for use in the medical sphere, the rotor being compressible for bringing to the place of use and thereafter being expandable. The compressibility is assisted by the provision of cavities (), in particular also production of the rotor at least partially from a foam. 121512026272829. Compressible rotor ( , ) for a fluid pump () having at least one blade ( , ) and having at least one deformable cavity ( , , ) which is filled or can be filled with a fluid.2272829. Rotor according to claim 1 , characterised in that the cavity cavities ( claim 1 , claim 1 , ) is/are closed.3. Rotor according to claim 2 , characterised in that the cavity/cavities is are delimited at least partially by a partially permeable membrane.42828. Rotor according to claim 3 , characterised in that the at least one cavity () is filled with a liquid which claim 3 , in cooperation with the membrane and a liquid in which the pump can be inserted claim 3 , in particular blood claim 3 , effects an osmotic diffusion into the cavity () with a corresponding increase in pressure.527282932. Rotor according to claim 1 , characterised in that at least a part of the cavities ( claim 1 , claim 1 , ) is surrounded by a solid material () of the rotor and connected via openings to the exterior and/or to each other.621532. Rotor according to or one of the following claim 1 , characterised in that the rotor ( claim 1 , ) consists at least partially of a porous material () claim 1 , in particular foam.72733. Rotor according to or one of the following claim 1 , characterised by at least one cavity () which has a greater extension in a first direction () than in the directions essentially perpendicular thereto.827. Rotor according to claim 7 , characterised in that the cavity/cavities () is/are configured claim 7 , in cross-section claim 7 , to be round or polygonal claim 7 , in particular octagonal claim 7 , hexagonal claim 7 , triangular or square. ...

TURBINE-PUMP SYSTEM

A turbine-pump system adapted for use with well liquid that is displaceable within a well conduit. The turbine-pump system may include a bowl assembly; and a bowl support device fixedly attachable to the bowl assembly and selectively engageable with the well conduit for holding a portion of the bowl assembly in substantially axially, radially and rotationally fixed relationship with the well conduit. 1. A turbine-pump system adapted for use with well liquid that is displaceable within a well conduit , comprising:at least one bowl assembly; anda bowl support device fixedly attachable to said at least one bowl assembly and selectively engageable with the well conduit for holding a portion of said at least one bowl assembly in substantially axially, radially and rotationally fixed relationship with the well conduit.2. The turbine-pump system of wherein said bowl assembly comprises:an impeller subassembly having at least one impeller member; anda diffuser subassembly having at least on diffuser member.3. The turbine-pump system of wherein said bowl support device a packer fixedly attached to said diffuser subassembly.4. The turbine-pump system of wherein said packer is adapted to form a seal between said diffuser subassembly and the well conduit to prevent well liquid from flowing around said bowl assembly.5. The turbine-/pump system of wherein said bowl support device is an inflatable packer.6. The turbine-pump system of further comprising a bearing assembly for supporting a drive shaft in rotatably displaceable claim 1 , axially and radially nondisplaceable relationship with said diffuser subassembly.7. The turbine-pump system of wherein said drive shaft is a hollow drive shaft with an axially extending interior cavity adapted to transmit working fluid therethrough.8. The turbine-pump system of wherein said interior cavity of said hollow drive shaft is in fluid communication with said bearing assembly for lubricating said bearing assembly with said working fluid.9. ...

TURBINE-PUMP SYSTEM BOWL ASSEMBLY

A turbine-pump system bowl assembly for use with flowing liquid in a liquid conduit has an impeller subassembly that includes multiple axially abutting impeller members. 1. A turbine-pump system bowl assembly for use with flowing liquid in a liquid conduit comprising an impeller subassembly having a plurality of axially abutting impeller members.2. The bowl assembly of wherein said impeller members each comprise:an annular body portion; andat least one blade portion extending radially outwardly form said body portion.3. The bowl assembly of wherein axial end portions of adjacent body portions of said plurality of impeller members are arranged in axially abutting relationship.4. The bowl assembly of wherein said impeller blade portions have axial lengths shorter than said impeller body portions.5. The bowl assembly of wherein said impeller blade portions have about half the length of as said impeller body portions.6. The bowl assembly of wherein each impeller body portion has a first end and a second end and wherein a first end of one impeller body portion is adapted to be directly connected to a second end of another impeller body portion.7. The bowl assembly of wherein said first end portion of one impeller body portion is adapted to be threadingly connected to said second end of an adjacent impeller body portion.8. The bowl assembly of wherein said connected impeller members transmit driveshaft torque therebetween.9. The bowl assembly of wherein said plurality of axially abutting impeller members define a continuous axial passageway therethrough.10. The bowl assembly of wherein adjacent ones of said axially abutting impeller members are connected to opposite ends of a conduit member.11. The bowl assembly of wherein said conduit member has external threads.12. The bowl assembly of further comprising a diffuser subassembly comprising a plurality of axially connected diffuser members claim 1 , wherein said impeller subassembly is rotatable relative said diffuser ...

PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR

A pump for immersion in a fluid reservoir, such as a pit or lagoon containing liquid manure, from a position at an edge of the reservoir. The pump may be adapted for connection to a farm vehicle, such as a tractor, positioned at the edge of the reservoir. The pump comprises an extensible body, fluid conduit and drive means in order that a length of the pump may be varied in order to accommodate a variety of reservoir fluid heights. In addition, the pump may be pivotable relative to at least a portion of a frame in order that the entrance angle may be adjusted. The pump comprises a bottom housing with a bottom inlet and at least two tangential fluid outlets that are upwardly angled towards the conduit. A combiner is provided to merge the outlets with the fluid conduit. An impeller within the housing is shaped to transfer fluid tangentially and upwardly within the housing to co-operate with the upward angle of the outlets. These features reduce fluid pressure loss and thereby increase fluid flow rate through the pump for a given input power. 1. A pump for immersion within a fluid reservoir comprising:a pump body comprising an elongated fluid conduit having a longitudinal axis;a housing located at a bottom end of the pump body, the housing comprising a fluid inlet and at least two tangential fluid outlets located on opposite sides of the housing;a combiner for creating a fluid connection between the outlets and the fluid conduit, the combiner combining fluid flows from the outlets and directing a combined fluid flow longitudinally into the fluid conduit;an impeller located within the housing having vanes shaped to direct the fluid tangentially within the housing.2. The pump according to claim 1 , wherein the fluid outlets receive fluid flowing upwardly out of the housing through opening areas that gradually transition from a larger opening area at the housing to a smaller area at the connection at the combiner.3. The pump according to claim 1 , wherein the pump further ...

Jet pump system and method with improved efficency

The present disclosure is of a jet pump system, and reverse power generation system and other desirable applications consisting of an impeller with inlet vortex vanes and outlet vortex vanes. The inlet vortex vane induces rotational movement on mass entering the impeller inlet. The outlet vortex vanes remove swirl from mass exiting the impeller outlet. Embodiments include a jet pump system involving a pulley and belt which can allow for obstruction free movement of mass. In another embodiment the impeller is connected via an electromagnetic connection. In another embodiment the impeller acts as a rim-driven generator of electrical power. In another embodiment the drive pulley is a centrifugal clutch or uses a chain sprocket or tandem jet system in series.

SUBSEA PUMPING APPARATUSES AND RELATED METHODS

This disclosure includes subsea pumping apparatuses and related methods. Some apparatuses include one or more subsea pumps, each having an inlet and an outlet, and one or more motors, each configured to actuate at least one pump to communicate a hydraulic fluid from the inlet to the outlet, where the subsea pumping apparatus is configured to be in fluid communication with a hydraulically actuated device of a blowout preventer. Some subsea pumping apparatuses include one or more of: a desalination system configured to produce at least a portion of the hydraulic fluid; one or more valves, each configured to selectively route hydraulic fluid from an outlet of a pump to, for example, a subsea environment, a reservoir, and/or the inlet of the pump; and a reservoir configured to store at least a portion of the hydraulic fluid. Some apparatuses are configured to be directly coupled to the hydraulically actuated device. 17-. (canceled)8. A subsea pumping apparatus comprising:one or more subsea pumps, each having an inlet and an outlet;one or more motors, each configured to actuate at least one of the one or more pumps to communicate a hydraulic fluid from the inlet to the outlet; andone or more valves, each in fluid communication with the outlet of at least one of the one or more pumps and configured to selectively route hydraulic fluid from the outlet to at least one of a subsea environment, a reservoir, and the inlet of the pump;where the subsea pumping apparatus is configured to be in fluid communication with a hydraulically actuated device of a blowout preventer.9. The subsea pumping apparatus of claim 8 , comprising a desalination system configured to desalinate sea water to produce at least a portion of the hydraulic fluid.10. The subsea pumping apparatus of claim 9 , where the desalination system comprises:a reverse osmosis membrane; anda pump configured to pass sea water through the membrane to produce the hydraulic fluid.11. The subsea pumping apparatus of claim 8 ...

BLOOD PUMP WITH SEPARATE MIXED-FLOW AND AXIAL-FLOW IMPELLER STAGES, COMPONENTS THEREFOR AND RELATED METHODS

A rotordynamic pump for delivering continuous flow of fluids, such as blood, is provided. In one embodiment, the pump includes a stator housing having an inlet and an outlet. A rotor hub is disposed within the stator housing having a first, mixed-stage impeller and a second, axial-flow stage impellers. One or more stator vanes and extend radially inwardly from the stator housing. In one particular embodiment, the second stage impeller is disposed nearer to the outlet than to the inlet. The stator vanes may include a first set of stator vanes disposed between the first and second stage impellers, and a second set of stator vanes positioned between the second stage impellers and the outlet. 125-. (canceled)26. An implantable blood pump comprising:a stator housing including an inlet and an outlet;a rotor including a rotor hub defining an annulus between the rotor hub and the stator housing, the rotor hub having a leading portion proximate the inlet and a trailing portion proximate the outlet;a first stage impeller blade coupled to the rotor hub at the leading portion;a second stage impeller blade coupled to the rotor hub between the leading portion and the trailing portion, the second stage impeller blade defining a second stage impeller blade clearance between the second stage impeller blade and the stator housing; anda stator vane extending inwardly from the stator housing and defining a stator vane clearance within the annulus between the stator vane and the rotor hub, the stator vane clearance including a length greater than a length of the second stage impeller blade clearance.27. The implantable blood pump of claim 26 , wherein the rotor includes a mixed-flow first stage including the first stage impeller blade.28. The implantable blood pump of claim 27 , wherein the rotor includes a single axial-flow second stage including the second stage impeller blade.29. The implantable blood pump of claim 26 , wherein the rotor hub is configured to operate at a speed of ...

DIFFUSER FOR A FLUID COMPRESSION DEVICE, COMPRISING AT LEAST ONE VANE WITH OPENING

The present disclosure describes a diffuser () for a fluid compression device, comprising at least one vane () mounted on a hub. In embodiments of the disclosure, at least one opening () is provided in the diffuser vanes (), in the radial direction. 1. A diffuser for a fluid compression device , comprising at least one vane mounted on a hub , characterized in that said vane comprises at least one opening , said at least one opening starting at a distance ranging between 10% and 60% of the axial length of said vane.2. A diffuser as claimed in claim 1 , wherein the at least one opening comprises a slot.3. A diffuser as claimed in claim 2 , wherein said slot has an axial length ranging between 10% and 40% of the axial length of said vane.4. A diffuser as claimed in claim 2 , wherein said slot is provided over at least half the height of said vane claim 2 , starting from the outer edge of said vane toward the center of said compression device.5. A diffuser as claimed in claim 4 , wherein said slot is provided over the total height of said vane.6. A diffuser as claimed in claim 2 , wherein said slot is substantially perpendicular to the axis of said fluid compression device.7. A diffuser as claimed in claim 2 , wherein said slot is inclined toward downstream according to the direction of flow of the fluid on said diffuser.8. A diffuser as claimed in claim 2 , wherein said slot is substantially perpendicular to the surface of said vane.9. A diffuser as claimed in claim 2 , wherein said vane comprises a single slot.10. A diffuser as claimed in claim 1 , wherein said at least one opening starts at a distance ranging between 45% and 55% of the axial length of said vane.11. A diffuser as claimed in claim 1 , comprising a plurality of openings containing holes that are aligned substantially.12. A diffuser as claimed in claim 11 , wherein the alignment of holes is substantially perpendicular to the axis of said fluid compression device.13. A diffuser as claimed in claim 11 , ...

HIGH VOLUME PUMP

A high-volume low pressure axial flow water pump with a flexible coupler and at least one bearing to increase the lifetime of the integral pump motor is disclosed. Both propeller and impeller units are disclosed for submersible pond pumps of the present invention. Various aspects include a floating display fountain pump and further include optional suction screens and/or sand slingers. Axial flow high pressure low volume pumps made in accordance with the present invention experience long life and higher efficiency. Inclusion of flexible couplers alleviate many problems with vibration and other fatal defects in the prior art, taking a vertical rotational direction from a central shaft to transfer vibration to a stable position. Another aspect of the invention includes using multiple bearings for stability, whether sleeve bearings or thrust bearings. 1. A high volume pond pump , comprising:a pump housing;a pump motor integral with the pump housing;a pump shaft mechanically in communication with the pump motor, and being put into rotational motion by the pump motor;at least one water thruster attached to the pump shaft;at least one bearing on the pump shaft;a flexible coupler for connecting the pump motor to the at least one water thruster, whereby the rotational motion is dampened from vibration, thereby lengthening the life of the pump motor.2. The high volume pond pump of claim 1 , wherein the pond pump is a submersible pump.3. The high volume pond pump of claim 1 , further comprising a suction screen located around the motor to strain out pond water particulates that could harm the pump motor.4. The high volume pond pump of claim 1 , wherein the at least one water thruster is an impeller.5. The high volume pond pump of claim 1 , wherein the at least one water thruster is a propeller.6. The high volume pond pump of claim 1 , wherein the at least one bearing is selected from the group consisting of sleeve bearings claim 1 , thrust bearings claim 1 , roller bearings ...

GAS ESTIMATION DEVICE AND VACUUM PUMPING DEVICE

A gas estimation device for estimating a flow rate and a gas type of gas to be vacuum-pumped by a vacuum pumping device including a vacuum pump and an automatic pressure control valve connected to a suction port of the vacuum pump, comprises: a correlation data storage section configured to store first correlation data containing correlation data regarding an opening degree control gain value of the automatic pressure control valve and correlation data regarding an effective exhaust velocity of the vacuum pumping device and second correlation data indicating a correlation among a flow rate, a gas type, and a motor current value in the vacuum pump; and a first estimation section configured to estimate the flow rate and the gas type of the gas to be vacuum-pumped by the vacuum pumping device based on at least the first correlation data and the second correlation data. 1. A gas estimation device for estimating a flow rate and a gas type of gas to be vacuum-pumped by a vacuum pumping device including a vacuum pump and an automatic pressure control valve connected to a suction port of the vacuum pump , comprising:a correlation data storage section configured to store first correlation data containing correlation data regarding an opening degree control gain value of the automatic pressure control valve and correlation data regarding an effective exhaust velocity of the vacuum pumping device and second correlation data indicating a correlation among a flow rate, a gas type, and a motor current value in the vacuum pump; anda first estimation section configured to estimate the flow rate and the gas type of the gas to be vacuum-pumped by the vacuum pumping device based on at least the first correlation data and the second correlation data,wherein the correlation data regarding the opening degree control gain value indicates a correlation among the opening degree control gain value, the gas type and the flow rate of the gas to be vacuum-pumped by the vacuum pumping device, ...

BLOOD PUMP WITH MICROMOTOR

The invention relates to a micromotor (), the stator of which contains a back iron jacket (). Said back iron jacket consists of a continuous unslotted sleeve consisting of a metal alloy that contains ferritic iron as the main constituent, up to 30% chromium and preferably aluminium and yttrium oxide. Electric conductivity is reduced by the oxidation of the aluminium. The yttrium oxide performs the same function. The reduced electric conductivity suppresses eddy currents to a great extent. The back iron jacket () has a high magnetic conductivity with a small wall thickness, thus increasing the electrical output for a motor with a small diameter. 18.-. (canceled)9. A blood pump sized for intravascular insertion , the blood pump comprising:a micromotor; and a shell containing an exciter coil; and', 'a magnetic-reflux jacket surrounding the shell continuously, wherein the magnetic-reflux jacket is unslotted and is made of a magnetically conductive material, wherein the magnetically conductive material is a ferritic alloy comprising iron as the main component, from 17 wt. % to 30 wt. % chromium, and from 3 wt. % to 8 wt. % aluminum., 'a stator, wherein the stator comprises10. The blood pump of claim 9 , wherein the ferritic alloy further comprises 0.3 wt. % to 2 wt. % yttrium oxide.11. The blood pump of claim 9 , wherein the ferritic alloy comprises up to 0.2 wt. % copper.12. The blood pump of claim 9 , wherein the ferritic alloy comprises no copper.13. The blood pump of claim 9 , wherein the ferritic alloy has a crystalline structure.15. The blood pump of claim 9 , wherein the magnetic-reflux jacket reduces electric conductivity of the blood pump compared to a magnetic-reflux jacket having one or more slot.16. The blood pump of claim 9 , wherein the magnetic-reflux jacket has an outer diameter of up to 4.6 mm and an inner diameter of at least 3.3 mm.17. The blood pump of claim 9 , wherein the magnetic-reflux jacket has a length of about 12 mm.18. The blood pump of claim ...

MULTIPLE STAGE FUEL PUMP

A multi-stage fuel pump includes a casing having a fuel intake formed on one side thereof and a fuel discharge port formed on the other side thereof, and a plurality of impellers provided within the casing, having a plurality of blades disposed on a circumferential surface in an outward direction of the circumferential surface and having blade chambers formed between the blades and penetrating through upper and lower surfaces of the impellers to allow fuel to be discharged and introduced to and from upper and lower sides of the blades, and formed in multiple stages, wherein fuel intaken through the fuel intake according to rotation of the impellers is discharged to the fuel discharge port through the blade chambers of the impellers, and the numbers of the blades of each of the impellers are different, thereby reducing blade passage frequency (BPF) noise generated according to rotation of the impellers. 1. A multi-stage fuel pump comprising:a casing having a fuel intake formed on one side thereof and a fuel discharge port formed on the other side thereof; anda plurality of impellers provided within the casing, having a plurality of blades disposed on a circumferential surface in an outward direction of the circumferential surface and having blade chambers formed between the blades and penetrating through upper and lower surfaces of the impellers to allow fuel to be discharged and introduced to and from upper and lower sides of the blades, and formed in multiple stages,wherein a flow channel is formed such that fuel intaken through the fuel intake according to rotation of the impellers is discharged to the fuel discharge port through the blade chambers of the impellers, andthe numbers of the blades of each of the impellers are different.2. The multi-stage fuel pump of claim 1 , wherein the impellers are formed to have different outer diameters and have different numbers of blades claim 1 , or are formed to have the same outer diameter and have different numbers of ...

COMPRESSOR HAVING HOLLOW SHAFT

A shaft of a compressor may include a first shaft section defining a first cavity axially extending therein and a second shaft section defining a second cavity axially extending therein. A plurality of inlet holes may be defined on an outer surface of the first shaft section, and a plurality of outlet holes may be defined on an outer surface of the second shaft section. The plurality of inlet holes may be in fluid communication with the first cavity and the plurality of outlet holes may be in fluid communication with the second cavity. The first cavity and the second cavity may form a passageway fluidly coupling the plurality of inlet holes and the plurality of outlet holes. 1. A compressor , comprising:an inlet at an input end of the compressor, the inlet configured to receive a working fluid;an outlet at a discharge end of the compressor, the outlet configured to expel the working fluid having a greater pressure, the input end and the discharge end being axially separated;a rotatable shaft extending axially between the input end and the discharge end, the rotatable shaft defining a passageway fluidly coupling the inlet and the outlet;an impeller mounted about the rotatable shaft between the inlet and the outlet;a balance piston mounted about the rotatable shaft and disposed immediately following the impeller from the input end; and 'wherein the passageway is configured to receive at least a portion of the working fluid flowing across the balance piston seal and to supply the portion of the working fluid to the input end.', 'a balance piston seal mounted about the balance piston,'}2. The compressor of claim 1 , wherein the rotatable shaft defines a plurality of inlet holes and a plurality of outlet holes claim 1 , such that the plurality of inlet holes are circumferentially disposed about the rotatable shaft at or adjacent the discharge end and the plurality of outlet holes are circumferentially disposed about the rotatable shaft at or adjacent the input end claim ...

PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR

A pump is provided for immersion in a fluid reservoir, such as a pit or lagoon containing liquid manure, from a position at an edge of the reservoir. The pump may be adapted for connection to a farm vehicle, such as a tractor, positioned at the edge of the reservoir. The pump comprises an extensible body, fluid conduit and drive means in order that a length of the pump may be varied in order to accommodate a variety of reservoir fluid heights. In addition, the pump may be pivotable relative to at least a portion of a frame in order that the entrance angle may be adjusted. The pump may comprise a housing with an inlet and an outlet, the outlet in fluid communication with the fluid conduit. An impeller within the housing may direct fluid from the inlet to the outlet in the housing. 1. A liquid manure pump for immersion in a liquid manure reservoir comprising:a frame;a pump body connected to the frame;a fluid conduit mounted on the pump body;a housing located at a bottom end of the pump body, the housing comprising a fluid inlet and at least two tangential fluid outlets;a combiner for creating a fluid connection between the at least two fluid outlets and the fluid conduit;a drive shaft mounted on the pump body;an impeller connected to the drive shaft and located within the housing, the drive shaft providing motive power to the impeller to direct the liquid from the inlet to the at least two fluid outlets; and,a rotatable agitator nozzle, in fluid communication with at least one fluid outlet, for directing a portion of the liquid manure outwardly from the pump, the agitator nozzle comprising a valve for controlling liquid manure flow rate through the nozzle, the valve rotatable with the agitator nozzle.2. The pump of claim 1 , wherein the combiner comprises gradual bends to reduce likelihood of pressure loss of the liquid manure.3. The pump of claim 1 , wherein the combiner is located near a top of the pump.4. The pump of claim 2 , wherein the combiner is located near a ...

INTEGRATED AUXILIARY LOAD CONTROL AND METHOD FOR CONTROLLING THE SAME

A method of controlling a liquid movement system, such as a pool system. The method includes receiving a maximum time that an auxiliary load is to operate, receiving a minimum pump speed of a pump system that pumps a liquid through the auxiliary load, monitoring the time that an auxiliary load has been in operation, monitoring the pump speed of a pump system that pumps a liquid through the auxiliary load, and deactivating the auxiliary load if the maximum time or minimum pump speed has been met. Also disclosed are a pool system and a controller for controlling the pool system. 1. A control system for controlling a liquid movement system , the control system comprising:a controller electrically connected to a motor, the controller controlling a speed of the motor; an inputted maximum time that the auxiliary load is to be activated, and', 'an inputted minimum speed of the motor that the auxiliary load is to be activated at., 'the controller electrically connected to an auxiliary load, the controller controlling the activation of the auxiliary load based on'}2. A control system as set forth in wherein the controller includes a processor to receive the inputted maximum time and the inputted minimum speed and generates one or more control signals to control the auxiliary load and the motor.3. A control system as set forth in wherein the controller includes a user interface to receive the inputted maximum time and the inputted minimum speed claim 1 , the user interface includes at least one of a display screen claim 1 , one or more push buttons claim 1 , or a control knob.4. A method of controlling a liquid movement system claim 1 , the method comprising:receiving a maximum time requirement that an auxiliary load is to operate,receiving a minimum pump speed requirement of a pump system that pumps a liquid through the auxiliary load,monitoring the time that an auxiliary load has been in operation,monitoring the pump speed of a pump system that pumps a liquid through the ...

PROPELLER PUMP FOR PUMPING LIQUID

Propeller pump for pumping liquid, including: an axially extending tubular pump housing having an inner surface, an axially extending pump core having an envelope surface, at least one axial portion of the pump core enclosed in the pump housing. The pump core includes a propeller having a hub and at least one blade, and at least one guide vane that includes an upstream leading edge and a downstream trailing edge, and that in the circumferential direction includes a pressure side and a suction side. The guide vane extends between the inner surface of the pump housing and the envelope surface of the pump core. At the leading edge of the guide vane a connection angle between the suction side of the guide vane and the envelope surface of the pump core is larger than 90 degrees. 18.-. (canceled)9. A propeller pump for pumping liquid , comprising:an axially extending tubular pump housing having an inner surface,an axially extending pump core having an envelope surface, at least one axial portion of the pump core enclosed in said pump housing, and the pump core comprising a propeller having a hub and at least one blade,at least one guide vane having an upstream located leading edge and a downstream located trailing edge, the at least one guide vane in a circumferential direction having a pressure side and a suction side, said at least one guide vane extending between the inner surface of the pump housing and the envelope surface of the pump core,a connection angle between the suction side of the guide vane and the envelope surface of the pump core greater than 90 degrees at the leading edge of said at least one guide vane, anda maximum diameter (dmax) of the pump core located downstream of the propeller, the leading edge of said at least one guide vane connected to the envelope surface of the pump core at a location downstream of the maximum diameter (dmax) of the pump core.10. The propeller pump according to claim 9 , wherein the connection angle between the suction side ...

MULTI-STAGE IMPELLER PRODUCED VIA ADDITIVE MANUFACTURING

A pump features a two-part axial flow shaft having a static inner shaft portion and a rotating outer shaft portion; the static inner shaft portion having static diffuser vanes, and also having two shaft ends configured to affix to a frame of a pump so the static inner shaft portion does not rotate; and the rotating outer shaft portion having an outer portion configured to affix to a rotor of the pump to rotate the rotating outer shaft portion, also having rotating impeller vanes configured inside and coupled to the outer portion to move the fluid axially along the two-part axial flow shaft as the rotating outer shaft portion axially rotates in relation to the static inner shaft portion. 1. A pump , comprising:a two-part axial flow shaft having a static inner shaft portion and a rotating outer shaft portion;the static inner shaft portion having static diffuser vanes, and also having two shaft ends configured to affix to a frame of a pump so the static inner shaft portion does not rotate; andthe rotating outer shaft portion having an outer portion configured to affix to a rotor of the pump to rotate the rotating outer shaft portion, also having rotating impeller vanes configured inside and coupled to the outer portion to move the fluid axially along the two-part axial flow shaft as the rotating outer shaft portion axially rotates in relation to the static inner shaft portion.2. A pump according to claim 1 , wherein the two-part axial flow shaft is made from an additive manufacturing process.3. A pump according to claim 1 , wherein the additive manufacturing process is a powder bed fusion process.4. A pump according to claim 1 , wherein the two-part axial flow shaft has multiple stages claim 1 , each stage having a combination of a respective static diffuser vane and a respective rotating impeller vane claim 1 , so that the respective static diffuser vane converts kinetic energy of the fluid exiting a rotating impeller vane outlet of the respective rotating impeller ...

SEAL ARRANGEMENT FOR PUMP

A pump comprises: at least one rotor rotatable about an axis of rotation; a pump housing surrounding the rotor, wherein a pump channel is formed between a radially inner surface of the pump housing and a radially outer surface of the rotor; and a seal assembly that seals the pump channel to an end surface of the rotor. The seal assembly comprises: a sliding surface which is provided on one of the rotor and the pump housing and which extends perpendicular to the axial direction of the rotor; a static surface provided on the other of the rotor and the pump housing; and a first elastomer element attached to the static surface and pressed against the sliding surface in the axial direction. 1. A pump comprising:at least one rotor rotatable about an axis of rotation,a pump housing surrounding the rotor, wherein a pump channel is formed between a radially inner surface of the pump housing and a radially outer surface of the rotor, anda seal assembly sealing the pump channel to an end surface of the rotor. the seal assembly comprising:a sliding surface which is provided on one of the rotor and the pump housing and which extends perpendicular to the axial direction of the rotor;a static surface provided on the other of the rotor and the pump housing; anda first elastomer element attached to the static surface and pressed against the sliding surface in the axial direction.2. The pump of claim 1 , wherein the sliding surface is formed of a ceramic material claim 1 , such as silicon carbide claim 1 , SiC claim 1 , sintered silicon carbide claim 1 , SSiC claim 1 , or tungsten carbide claim 1 , TC.3. The pump of claim 1 , wherein the sealing assembly further comprises a sealing sleeve provided in the pump housing claim 1 , wherein a surface of the sealing sleeve forms the static surface.4. The pump of claim 3 , wherein the sealing sleeve is a metal sleeve that is axially supported on the pump housing via a second elastomer element.5. The pump of claim 4 , wherein the sealing ...

SUBSEA FLUID PROCESSING SYSTEM WITH INTERMEDIATE RE-CIRCULATION

A fluid processing system is provided containing a pump and a fluid reservoir. The pump includes a casing, one or more pump stages, a pump inlet, and a pump outlet. The casing includes one or more slots, with at least one slot configured to extract at least a portion of a multiphase fluid flowing within the pump. The fluid reservoir encompasses at least a portion of the casing and is configured to receive and separate the portion of the multiphase fluid into an extracted liquid phase and an extracted gaseous phase. The fluid reservoir includes a re-circulation conduit disposed proximate to the pump inlet and a discharge device coupled to the re-circulation conduit. The discharge device regulates re-circulation of at least a portion of the extracted liquid phase to the pump via the pump inlet for reducing a gas volume fraction of the multiphase fluid being fed to the pump. 1. A fluid processing system comprising:a pump including a casing, one or more pump stages, a pump inlet, and a pump outlet, the casing defining one or more slots, wherein at least one of the slots is configured to extract at least a portion of a multiphase fluid flowing within the pump, wherein each pump stage comprises a diffuser and an impeller; anda fluid reservoir encompassing at least a portion of the casing and configured to receive and separate the portion of the multiphase fluid into an extracted liquid phase and an extracted gaseous phase,wherein the fluid reservoir comprises a re-circulation conduit disposed proximate to the pump inlet, and a discharge device coupled to the re-circulation conduit and configured to regulate re-circulation of at least a portion of the extracted liquid phase to the pump via the pump inlet so as to reduce a gas volume fraction (GVF) of the multiphase fluid being fed to the pump.2. The system according to claim 1 , wherein the fluid reservoir further comprises a re-injection conduit coupled to the one or more pump stages upstream relative to the slots and ...

Axial-flow pumps and related methods

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

ENHANCED AXIAL AIR MOVER SYSTEM WITH ALIGNMENT

Implementations of an enhanced axial air mover system address various issues such as drying performance, transportability, storage, use, and assembly. Some implementations include ergonomic positioning of a carrying handle relative to positioning of a fan-assembly to make the system easier to carry. Enclosures with variable diameter profiles increase air flow performance. A floor edge allows for flush positioning of the air mover's outlet to improve flow of air. Various supports and engagement members allow for horizontal and/or vertical engagement of a plurality of the air movers for storage or increased air moving capacity for a given application. An alignment guide assists with positioning of the air mover with respect to a room wall to enhance air flow within the room. A cord retaining system provides an enhanced approach for securing the air mover's electrical cord. Grill guards have slotted ends to assist with assembly of the air mover. 1. An air mover system comprising:a fan assembly including a propeller and a motor, the propeller coupled to the motor; anda housing assembly including an enclosure, the enclosure having an interior and an exterior, the fan assembly being positioned in the interior, the interior bounded by an net and an outlet, the fan assembly positioned within the interior, the enclosure further including an alignment guide, the alignment guide shaped and positioned on the enclosure to be positioned at substantially a predetermined first angle to a wall of a room when the outlet is positioned a predetermined second angle to the wall of the room.2. The air mover system of wherein the predetermined first angle is substantially ninety degrees. 1. Field of the InventionThe present invention is related to axial air movers.2. Description of the Related ArtAir movers are used for such applications as to dry buildings and other structures when accidents have occurred causing areas in the buildings and other structures to become wet. Unfortunately, ...

EXPANDABLE IMPELLER PUMP

An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least .two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades. 1. An impeller pump comprising:a hub;a blade supported by the hub, the blade having a proximal end attached to the hub and a distal end;the blade having a deployed configuration, a stored configuration and an operational configuration, the blade in the deployed configuration extending away from the hub, the blade in the stored configuration being compressed so as to move the distal end of the blade towards the hub, and the blade in the operational configuration being deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration; anda winglet provided on the distal end of the blade, wherein the winglet comprises a length that varies along a length of the blade.2. The impeller pump of claim 1 , wherein the winglet comprises a first end claim 1 , a second end claim 1 , and an intermediate portion positioned therebetween claim 1 , wherein a length of the intermediate portion is larger than a length of either the first end or the second end.3. The impeller pump of claim 1 , wherein the blade has a pressure face and a suction face claim 1 , the winglet extending from the pressure face of the blade.4. The impeller pump of claim 1 , wherein the blade has a pressure face and a suction face claim 1 , the winglet extending from the ...

EXPANDABLE IMPELLER PUMP

An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least .two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades. 1. A catheter heart pump comprising:an elongate catheter body having a proximal end, and a distal end configured to be advanced to a heart of a patient;an expandable sleeve coupled to the distal end, the expandable sleeve having a stored configuration in which the expandable sleeve is advanced to the heart, and an expanded configuration, and further comprising a distal inlet port and a proximal outlet port;an expandable impeller configured to be disposed within the expandable sleeve between the distal inlet port and the proximal outlet port when in the expanded configuration, and configured to turn on a shaft to generate a fluid flow from the distal inlet port to the proximal outlet port; anda storage sleeve configured to house both the expandable sleeve and the expandable impeller therein.2. The catheter heart pump of claim 1 , wherein the impeller and the expandable sleeve are configured to expand when urged out of the storage sleeve.3. The catheter heart pump of claim 1 , wherein the storage sleeve is configured to compress the expandable sleeve into the stored configuration for insertion into the patient and advancement to the heart.4. The catheter heart pump of claim 2 , wherein the expandable sleeve is configured for insertion into the storage sleeve.5. The ...

SYSTEM FOR MOVING FLUID WITH OPPOSED AXIAL FORCES

A technique facilitates movement of fluids with reduced component loading by utilizing opposed axial forces. The system for moving fluid may be in the form of a gas compressor, liquid pump, or other device able to pump or otherwise move fluid from one location to another. According to an embodiment, the system comprises rotor sections which are combined with pumping features. The rotor sections are disposed radially between corresponding inner and outer stator sections which may be powered to cause relative rotation of inner and outer rotor sections in opposite directions. The rotors and corresponding pumping features are configured to move fluid in opposed axial directions toward an outlet section so as to balance axial forces and thus reduce component loading, e.g. thrust bearing loading. 1. A system for moving fluid , comprising:a housing having at least one inlet region and at least one outlet region; anda plurality of radially inner rotor sections, a plurality of radially outer rotor sections, and pumping features, the plurality of radially inner and radially outer rotor sections being rotatably mounted between at least one radially inner stator section and at least one radially outer stator section;the plurality of radially inner rotor sections being counter rotated with respect to the plurality of radially outer rotor sections within the housing to draw fluid through the at least one inlet region and to direct the fluid axially to the at least one outlet region in a manner which creates fluid flows moving in opposed axial directions.2. The system as recited in claim 1 , wherein the at least one inlet region comprises a first inlet and a second inlet claim 1 , and further wherein the at least one outlet region comprises an outlet region disposed between the first inlet and the second inlet.3. The system as recited in claim 2 , further comprising a rotatable outlet section having flow members to receive the fluid flows from a generally axial direction and to ...

HEAT DISSIPATION CONFIGURATION WITH WATER PUMP ASSEMBLY

A heat dissipation configuration with water pump assembly includes a heat dissipation assembly, opposite first and second tanks respectively connected to an upper end and a lower end of the heat dissipation assembly, a water pump device mounted on the second tank and including a rotational impeller unit, and a joint assembly including an inlet joint connected to the second tank and a second pipe and an outlet joint connected to the water pump device and a first pipe. The first pipe and the second pipe extend to a heat generation unit. The water pump device and the joint assembly, situated at the lower end, combine to force liquid to move in a downstream direction and concurrently increase pressure of the liquid under the rotation of the impeller unit so that the liquid is continuously pumped from the second tank into the heat generation unit for dissipating heat quickly. 1. A heat dissipation configuration with water pump assembly comprising:a heat dissipation assembly including two fixing boards located opposite to each other and having opposite upper and lower ends, a plurality of radiating water tubes disposed between said two fixing boards, and a plurality of radiating fins disposed between said plurality of radiating water tubes;a first tank connected to said upper end of said two fixing boards and adapted to receive a flow of liquid;a second tank connected to said lower end of said two fixing boards and adapted to receive said flow of said liquid, a through hole being formed through a first side of said second tank;a water pump device mounted on said second tank, said water pump device including a seat disposed on said first side of said second tank, a driving unit mounted in said seat, and an impeller unit connected to one end of said driving unit, said driving unit being adapted to drive a rotation of said impeller unit, said impeller unit being located in a place relative to said through hole to allow said impeller unit to be immersed in said liquid; anda ...

BOOST TURBO-PUMP WITH AXIALLY FED TURBINE

A liquid propellant rocket engine includes a main turbo-pump and a boost turbo-pump. The main turbo-pump has a main pump with an outlet that is fluidly coupled with a supply line. The boost turbo-pump includes a housing, a rotor, a boost pump, and a turbine. The boost pump includes a first portion of the housing and a first portion the rotor. The turbine includes a second portion of the housing and a second portion of the rotor. The turbine has turbine blades attached to the second portion of the rotor and an inlet fluidly coupled with the supply line. The turbine has a plurality of circumferentially disposed feed lines defined by the second portion of the housing and not the first portion of the housing. The feed lines are fluidly coupled between the inlet and the turbine blades. The feed lines have an acute angle turn. 1. A liquid propellant rocket engine comprising:a main turbo-pump having a main pump having an outlet fluidly coupled with a supply line; and a housing;', 'a rotor;', 'a boost pump including a first portion of the housing and a first portion the rotor; and', 'a turbine including a second portion of the housing and a second portion of the rotor,', 'wherein the turbine has turbine blades attached to the second portion of the rotor,', 'wherein the turbine has an inlet fluidly coupled with the supply line,', 'wherein the turbine has a plurality of circumferentially disposed feed lines defined by the second portion of the housing and not the first portion of the housing,', 'wherein the circumferentially disposed feed lines are fluidly coupled between the inlet and the turbine blades,', 'wherein the circumferentially disposed feed lines have an acute angle turn., 'a boost turbo-pump having'}2. The liquid propellant rocket engine as recited in claim 1 , wherein the acute angle turn is approximately 60 degrees.3. The liquid propellant rocket engine as recited in claim 1 , wherein the boost pump has an inlet fluidly connected between an inducer attached to ...

Method for Optimizing Blade Axis Position of Water Pump under All Operating Conditions

A method for optimizing the blade axis position of a water pump under all operating conditions which includes determination of multiple calculation conditions within the range of all the operating conditions of the water pump, three-dimensional modeling and mesh generation of the calculation area of the flow field of the water pump at multiple blade angles, numerical simulation of the flow field and calculation and determination of blade hydraulic torques under multiple conditions, determination of the range of the position of the blade resultant hydraulic pressure action line and an optimal blade axis position under all the operating conditions, determination of the small region of the optimal blade axis position under all the operating conditions, determination of the optimal blade axis position, and comparison of the blade hydraulic torques before and after optimization of the blade axis position. 312. The method for optimizing the blade axis position of the water pump under all operating conditions according to claim 1 , characterized in that according to the determination of the small region of the optimal blade axis position of the water pump under all the operating conditions as described in step E claim 1 , a range width between the two blade resultant hydraulic pressure action lines farthest from each other approximately on a calculation cylindrical surface is s claim 1 , the range width s is divided into k equal parts claim 1 , starting from the action line claim 1 , closer to the current blade axis claim 1 , in the two blade resultant hydraulic pressure action lines farthest from each other claim 1 , blade axes claim 1 , claim 1 , . . . claim 1 , k−1 claim 1 , k are set at the equal parts to the other end of the range with the width s claim 1 , and distances between the k blade axes and the starting resultant action line are set as s/k claim 1 , 2 s/k claim 1 , . . . (k−1)s/k claim 1 , s respectively; a coordinate system is established claim 1 , an ...

EXPANDABLE IMPELLER PUMP

An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades. 117-. (canceled)18. A catheter heart pump comprising:an elongate catheter body having a proximal end, and a distal end configured to be advanced to a heart of a patient;an expandable sleeve coupled to the distal end, the expandable sleeve having a stored configuration in which the expandable sleeve is advanced to the heart, and an expanded configuration, and further comprising a distal inlet port and a proximal outlet port; andan expandable impeller configured to be disposed within the expandable sleeve between the distal inlet port and the proximal outlet port when in the expanded configuration, and configured to turn on a shaft to generate a fluid flow from the distal inlet port to the proximal outlet port.19. The catheter heart pump of claim 18 , wherein the stored configuration of the expandable sleeve has a diameter of no more than 4 millimeters claim 18 , and the expanded configuration has a diameter of at least 6 millimeters.20. The catheter heart pump of claim 18 , wherein the expandable impeller comprises a hub and a plurality of continuous helical blades extending therefrom.21. The catheter heart pump of further comprising a storage sleeve into which the expandable sleeve is configured to be inserted claim 18 , the storage sleeve configured to compress ...

MULTISTAGE TURBOMACHINE WITH EMBEDDED ELECTRIC MOTORS

A multistage turbomachine is disclosed, comprising a casing with a fluid inlet and a fluid outlet and a plurality of stages arranged in the casing. A flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages. Each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed. Each electric motor comprises a motor rotor, arranged on the impeller and integrally rotating therewith, and a motor stator stationarily arranged in the casing. Pairs of sequentially arranged impellers are configured for rotation in opposite directions. 1. A multistage turbomachine , comprising:a casing with a fluid inlet and a fluid outlet; and a flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages;', 'each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed;', 'each electric motor comprises a motor rotor arranged on the impeller and integrally rotating therewith and a motor stator stationarily arranged in the casing;', 'pairs of sequentially arranged impellers are configured for rotation in opposite directions; and', 'a control arrangement is provided, which is configured and arranged to rotate each impeller at a rotational speed which can vary from one impeller to the other., 'a plurality of stages sequentially arranged in the casing; wherein2. The turbomachine of claim 1 , wherein the impellers rotating in opposite directions are arranged directly adjacent to one another.3. The turbomachine of claim 1 , wherein the control arrangement is configured for controlling at least one parameter of the electric motors as a function of at least one compressibility-related parameter.4. The turbomachine of claim 3 , wherein the at least one parameter of the electric motors is selected from the group consisting of: the ...

ADJUSTABLE RIGID SPACER COUPLING

Technologies are described for devices and methods for adjusting a position of impellers within a bowl assembly. The devices may comprise an adjuster at the second end of a spacer coupling. The adjuster may include an adjuster sleeve. The adjuster sleeve may be a cylindrical sleeve. The adjuster sleeve may be threaded on an internal side. The adjuster sleeve may be spaced from the driven hub so that the adjuster sleeve can rotate around a driven shaft. The adjuster sleeve may threadedly mate and engage with an externally threaded first end of the driven shaft when the adjuster sleeve is rotated. The rotation of the adjuster sleeve may adjust a position of the driven shaft with respect to the driven hub and may thereby adjust a position of an impeller attached to a second end of the driven shaft with respect to a stationary bowl. 1. A device for adjusting a position of impellers within a bowl assembly of a pump , the device comprising:a spacer coupling, wherein a first end of the spacer coupling is connected to a drive hub and a second end of the spacer coupling is connected to a driven hub; andan adjuster at the second end of the spacer coupling, wherein the adjuster includes an adjuster sleeve;wherein the adjuster sleeve is a cylindrical sleeve with an internal side and an external side, the adjuster sleeve is threaded on the internal side, the adjuster sleeve is spaced from the driven hub so that the adjuster sleeve can rotate around a driven shaft, and the adjuster sleeve threadedly mates and engages with an externally threaded first end of the driven shaft when the adjuster sleeve is rotated, and the rotation of the adjuster sleeve adjusts a position of the driven shaft with respect to the driven hub, and thereby the rotation of the adjuster sleeve adjusts a position of an impeller attached to a second end of the driven shaft with respect to a stationary bowl assembly of the pump.2. The device of claim 1 , further comprising a set screw threaded through an ...

CIRCULATING PUMP

A circulating pump includes a conveying element for conveying a conveyed liquid, and an electric motor which has a stator, a rotor, and a gap therebetween, wherein the rotor includes a shaft rotatable about a rotation axis and to which the conveying element is rotationally fixed, and the shaft is mounted to a radial slide bearing having a lubrication region configured to be liquid-lubricated with the conveyed liquid. The circulating pump includes a sealing device which inhibits fluid communication between the lubrication region and the gap located between the stator and the rotor. 1. A circulating pump comprising a conveying element for conveying a conveyed liquid , and an electric motor which has a stator , a rotor , and a gap disposed therebetween , the rotor including a shaft rotatable about a rotation axis , the conveying element rotationally fixed to the shaft , the shaft mounted to the circulating pump via a radial slide bearing with a lubrication region configured to be liquid-lubricated with the conveyed liquid , the circulating pump including a sealing device configured to inhibit fluid communication between the lubrication region and the gap located between the stator and the rotor.2. The circulating pump in accordance with claim 1 , wherein the circulating pump comprises a fluid guide which claim 1 , for supplying claim 1 , transmitting claim 1 , or discharging conveyed liquid into claim 1 , through claim 1 , or from the lubrication region has at least one fluid channel which allows conveyed liquid to flow therethrough.3. The circulating pump in accordance with claim 2 , wherein a fluid channel by way of at least one entry opening is in fluid communication with a pressurized side or an intake side of the circulating pump and/or wherein a fluid channel by way of at least one exit opening is in fluid communication with a pressurized side or an intake side of the circulating pump.4. The circulating pump in accordance with claim 1 , further comprising one of: ...

FUNCTIONAL ELEMENT, IN PARTICULAR FLUID PUMP, HAVING A HOUSING AND A CONVEYING ELEMENT

The invention relates to a fluid pump () having a housing () delimiting a fluid chamber () and having a conveying element () for the fluid disposed in the fluid chamber, the housing (), with respect to the shape and/or size thereof, being able to be changed between at least a first, expanded state and a second, compressed state. The object, to stabilise adequately a corresponding housing, is achieved according to the invention by the housing having at least one stabilisation chamber () which can be supplied with a fluid pressure and is different from the fluid chamber, the first state of the housing being assigned to a first fluid pressure in the stabilisation chamber and the second state of the housing being assigned to a second fluid pressure. 121-. (canceled)22. A fluid pump comprising:a catheter;a rotor;an expandable housing defining an inner chamber configured to receive the rotor, the housing configured to transition between a compressed state and an expanded state within a blood vessel, the housing having an outflow opening connected to the catheter and an inflow opening positioned distal of the outflow opening, wherein an outer diameter of the housing is smaller than an inner diameter of the blood vessel when the housing is in the expanded state, wherein the housing comprises an inner wall and an outer wall,wherein the rotor is disposed within the inner chamber and configured to be radially compressed by the inner wall when the housing is in the compressed state; anda one-way inflow valve positioned distal to the rotor.23. The fluid pump according to claim 22 , wherein the fluid pump further comprises an one-way outflow valve positioned proximal of the inflow valve.24. The fluid pump according to claim 23 , configured such that claim 23 , during operation of the pump claim 23 , fluid is suctioned in through the inflow opening and out through the outflow opening.25. The fluid pump according to claim 23 , wherein the outflow valve comprises outflow valve flaps ...

PUMP FOR PUMPING LIQUID AS WELL AS AN IMPELLER ASSEMBLY

An impeller assembly and a pump for pumping a liquid, including a pump chamber and an impeller arranged to rotate in the pump chamber, the impeller being suspended in a lower end of an axially extending drive shaft unit, wherein the lower end of the drive shaft unit is received in a cylinder-shaped recess of the impeller, wherein the impeller is displaceable back and forth in the axial direction in relation to the drive shaft unit. The impeller further includes an axially extending hole that connects the cylinder-shaped recess and the pump chamber and that the drive shaft unit includes an axially extending pin that projects from the lower end of the drive shaft unit, wherein the pin is arranged in the hole. 112.-. (canceled)13. A pump for pumping liquid , comprising a pump chamber and an impeller arranged to rotate in said pump chamber , said impeller suspended at a lower end of an axially extending drive shaft unit , with said lower end of the drive shaft unit received in a cylinder-shaped recess of the impeller , the impeller comprising an axially extending hole that connects the cylinder-shaped recess and the pump chamber , wherein the impeller is displaceable back and forth in an axial direction in relation to the drive shaft unit and the drive shaft unit comprises an axially extending pin that projects from said lower end of the drive shaft unit , said pin arranged in said hole to prevent the pumped liquid from entering the cylinder-shaped recess of the impeller.14. A pump according to claim 13 , wherein a liquid seal is arranged at an interface of said hole and said pin.15. A pump according to claim 13 , wherein a lateral surface of the pin abuts an inner surface of the hole.16. A pump according to claim 13 , wherein an axial section of a lateral surface belonging to the lower end of the drive shaft unit abuts an inner surface of the cylinder-shaped recess.17. A pump according to claim 13 , wherein the pin is tube-shaped.18. A pump according to claim 14 , ...

PUMP WITH INTEGRAL CAISSON DISCHARGE

A caisson for submersible pumps and method of operating a pump that is fluidly cooperative with the caisson. The pump discharge and the caisson are fluidly coupled to one another such that upon discharge of a fluid being pumped, the caisson acts as the fluid conduit, thereby removing the need for redundant riser pipes. In one form, the pump is a seawater lift pump for use with floating production storage and offloading (FPSO), offshore platforms or related structures. 1. A seawater pumping assembly comprising:an offshore platform; and a pump comprising a motor section and an impeller section;', 'a caisson coupled to said pump and comprising an interior portion and an exterior portion such that when said caisson is disposed within said ambient body of seawater that is in contact with said exterior portion, said caisson acts as a non-redundant fluid barrier between said ambient body of seawater and a pressurized seawater flowpath that is both (a) formed downstream of said impeller section during operation of said pump and (b) defined by said interior portion;', a first flange disposed within said interior portion to provide at least one of radial support and vertical support to said pump; and', 'a second flange situated at the top of said caisson to define both (a) a fixed vertical support of said pump and (b) sealed isolation of said pressurized seawater from said ambient seawater along said seawater flowpath; and, 'a plurality of flanges formed on said caisson, said plurality of flanges comprising, 'a gasket disposed within at least one of said ambient seawater and said pressurized seawater and placed between (a) said pump and (b) at least one of said first and second flanges to define a galvanic decoupling structure therebetween., 'a lift pump assembly cooperative with said offshore platform such that placement of said offshore platform within an ambient body of seawater results in said lift pump assembly being exposed directly thereto, said lift pump assembly ...

TURBO MACHINE HAVING A SEALING UNIT, MAINTENANCE METHOD, AND ASSOCIATED MAINTENANCE DEVICE

An axial pump operated in a standing manner has an inner housing part (), in which a shaft () carrying a propeller wheel () is mounted. An outer housing part () is provided, wherein a flow path () for the fluid delivered by the propeller wheel () is formed between the inner and outer housing part. The inner housing part () is designed for receiving a fluid buffer for at least one seal () and includes an opening () for the supply and drainage of the buffer. A recess () is provided in the outer housing part (), via which recess the opening () is accessible from the outside. A valve () is provided in or on the inner housing part (), with which valve the conduit leading through the opening () can be blocked. 1. A flow machine axial pump operated in a standing manner , the flow machine comprising:an inner housing part;a propeller wheel;a shaft carrying the propeller wheel, the shaft being mounted in the inner housing;an outer housing part, wherein a flow path for the fluid delivered by the propeller wheel is formed between the inner and outer housing part, and the inner housing part is configured to receive a fluid buffer for at least one seal and comprises at least one opening for the supply and drainage of the fluid buffer, wherein a recess is provided in the outer housing part, via which recess the opening is accessible from outside of the outer housing; anda valve in or on the inner housing part, with which valve a conduit leading through the opening can be blocked.2. A flow machine according to claim 1 , wherein the valve is a controllable check valve.3. A flow machine according to claim 1 , wherein the housing parts are arranged essentially rotationally symmetrically around a vertical middle longitudinal axis of the flow machine claim 1 , and the recess is arranged in a manner radially aligned to the opening.4. A flow machine according to claim 1 , wherein a receptacle for the fluid buffer is formed within the inner housing part claim 1 , and the opening is ...

IMPELLER AND MOLD FOR MANUFACTURING IMPELLER

The present disclosure provides an impeller and a mold for manufacting the impeller. The impeller includes a plurality of blades, and there is an overlapped area between two adjacent blades. The mold includes a first part, a second part and a plurality of slide groups. The first part and the second part move in a mold opening direction. At least a portion of each slide group is located in the overlapped area, and each slide group has a first slide block and a second slide block, and a movement direction of the first slide block and the second slide block is perpendicular to the mold opening direction. By using that the movement direction of the slide group is perpendicular to the mold opening direction, the impeller with blades that have the overlapped area may be manufactured. The blades of the impeller may have a special shape. 1. A mold for manufacturing an impeller , wherein the impeller comprises a plurality of blades , and there is an overlapped area between two adjacent blades , the mold comprising:a first part;a second part, wherein the second part is corresponding to the first part, and the first part and the second part move in a mold opening direction; anda plurality of slide groups, wherein at least a portion of each slide group is located in the overlapped area, and each slide group has a first slide block and a second slide block, and a movement direction of the first slide block and the second slide block is perpendicular to the mold opening direction.2. The mold according to claim 1 , wherein each blade comprises an upper surface and a lower surface claim 1 , the first slide block has a first shaping surface to shape a portion of the lower surface of a blade claim 1 , and the second slide block has a second shaping surface to shape a portion of the upper surface of an adjacent blade being adjacent to the blade.3. The mold according to claim 2 , wherein the first part comprises a downward extension block claim 2 , the downward extension block has a ...

LIQUID PUMP

A cover end of a fuel pump is formed by resin molding and has a tubular portion, which holds a bearing that is placed along a central axis of the tubular portion and rotatably supports one end portion of a shaft of a motor arrangement. Furthermore, three terminals, which supply three-phase electric power received from an outside to windings on a phase-by-phase basis, are insert molded in the cover end. In the cover end, a first transverse passage, which is formed between the first terminal and the second terminal in a circumferential direction, and a second transverse passage, which is formed between the second terminal and the third terminal in the circumferential direction, are configured into a form of V-shape, which diverges in a radially outer direction, in a view taken in an axial direction. 1. A liquid pump comprising: a stator, in which a plurality of windings is wound around cores; and', 'a rotor, which includes a plurality of magnetic poles and is rotated about a rotational axis of a shaft by a magnetic field generated at the stator;, 'a motor arrangement that hasa housing that is configured into a tubular form and receives the stator and the rotor, wherein a plurality of outer passages, each of which passes between an inner wall of the housing and an outer wall of the stator and extends through the motor arrangement in an axial direction, is formed in the housing; a tubular portion, which holds a bearing that rotatably supports one end portion of the shaft, is formed along a central axis at a side of the cover end where the motor arrangement is located;', 'a discharge conduit, which has a discharge passage in an inside of the discharge conduit, is formed at an opposite side of the cover end, which is opposite from the motor arrangement; and', 'a first terminal, a second terminal and a third terminal, which supply three-phase electric power received from an outside to the plurality of windings on a phase-by-phase basis, are insert molded in the cover end; ...

FUEL PUMP

Partitioned chambers of an electric connector, which receive connection terminals electrically connected to windings of a stator, are communicated with an outside of the electric connector through primary communication holes. The primary communication holes are formed to direct at least one of perpendicular directions, each of which is perpendicular to a corresponding one of opening planes of outside openings of the primary communication holes, toward a downside when a central axis of a fuel pump is tilted relative to a vertical direction. In this way, a foreign object, which is accumulated in any of the portioned chambers, can be outputted to the outside through the primary communication hole even when the fuel pump is tilted in any direction. 1. A fuel pump comprising:a pump case that includes a suction port, through which fuel is drawn into an inside of the pump case, and a discharge port, through which the fuel is discharged to an outside of the pump case;{'b': 161', '163, 'a stator, around which a plurality of windings (, ) is wound, wherein the stator is configured into a tubular form and is received in the inside of the pump case;'}a rotor that is rotatably placed on a radially inner side of the stator;a shaft that is coaxial with the rotor and rotates integrally with the rotor; andan impeller that is provided to one end portion of the shaft, wherein when the impeller is rotated together with the shaft, the impeller pressurizes the fuel drawn through the suction port and discharges the pressurized fuel through the discharge port; and a receiving chamber, which receives a plurality of connection terminals that receive an electric power to be supplied to the plurality of windings; and', 'a plurality of primary communication holes, each of which communicates between an inside and an outside of the receiving chamber, wherein:, 'an electric connector that is provided to the pump case and includesthe plurality of primary communication holes is formed to direct at ...

ELECTRIC PUMP

An electric motor driven that includes a pump body and a motor body having a rotor enclosure coupled to the pump body. The motor body further includes a rotatable impeller arranged on a first side of the rotor enclosure. An electric motor arranged on a second side of the rotor enclosure, opposite the first side, the electric motor having a stator, at least one stator coil, terminals connected to the stator coil and a rotor, the rotor including a shaft that is coupled with the impeller. A cover is disposed over the electric motor, the cover having an open end that is attached to the rotor enclosure in a manner that produces a leak-tight chamber inside the cover, the stator and stator coil being arranged inside the leak-tight chamber, the leak-tight chamber being filled with a non-gaseous filler material, the non-gaseous filler material having a thermal conductivity greater than air. 1. An electric motor driven pump comprising:a pump body,a motor body comprising a rotor enclosure coupled to the pump body, a rotatable impeller arranged on a first side of the rotor enclosure,an electric motor arranged on a second side of the rotor enclosure, opposite the first side, the electric motor having a stator, at least one stator coil, terminals connected to the stator coil and a rotor, the rotor including a shaft that is coupled with the impeller,a cover disposed over the electric motor, the cover having an open end that is attached to the rotor enclosure in a manner that produces a leak-tight chamber inside the cover, the stator and stator coil being arranged inside the leak-tight chamber, the leak-tight chamber being filled with a non-gaseous filler material, the non-gaseous filler material having a thermal conductivity greater than air.2. The electric motor driven pump according to claim 1 , wherein the filler material is selected from the group consisting of a liquid claim 1 , gel or solid.3. The electric motor driven pump according to claim 1 , wherein the filler material ...

FUEL PUMP

A bearing receiving portion includes a receiving space that receives a bearing, which rotatably supports an end portion of a shaft. The bearing receiving portion includes an intermediate inner diameter portion, which receives the end portion of the shaft, and a small inner diameter portion, which includes a column shape space having an inner diameter that is smaller than an outer diameter of the end portion. Fuel in an inside of a housing flows into or flows out relative to the receiving space. When the shaft is moved toward an upside, the fuel, which is accumulated in a space formed by a bottom wall, an inner wall and an end surface, functions as a damper to reduce a relative moving speed of the shaft relative to the bearing receiving portion. 1. A fuel pump comprising:a housing that is configured into a tubular form;a pump cover that includes a suction port, through which fuel is drawn into an inside of the housing, wherein the pump cover is installed to one end portion of the housing;a cover end that includes a discharge port, through which the fuel is discharged to an outside of the housing, wherein the cover end is installed to another end portion of the housing;a stator, around which a plurality of windings is wound, wherein the stator is configured into a tubular form and is received in the housing;a rotor that is rotatably placed on a radially inner side of the stator;a shaft that is coaxial with the rotor and rotates integrally with the rotor;a bearing that is supported by the cover end and rotatably supports an end portion of the shaft, which is located on the cover end side;a bearing receiving portion that is formed in a portion of the cover end located in the inside of the housing, wherein the bearing receiving portion has a receiving space, which receives the bearing; andan impeller that is installed to an end portion of the shaft, which is located on the pump cover side, wherein when the impeller is rotated together with the shaft, the impeller ...

FUEL PUMP AND CONTROL METHOD THEREFOR

An ECU of a fuel pump executes a feedback control to drive a motor part and sets a rotation speed of an impeller to become a rotation speed corresponding to the target fuel pressure. The ECU detects whether a vapor is generated in a fuel of a pump chamber of the fuel pump, based on a fuel pressure detected by a pressure sensor. When a generation of the vapor is detected, the ECU sets a rotation speed of the impeller to be higher than the rotation speed under a normal control for a predetermined time with a result that the vapor in the pump chamber and a fuel flow channel is discharged into a vapor discharge hole. Thus, the vapor of the pump chamber is discharged from the vapor discharge hole to an outside of the fuel pump. 1. A fuel pump , comprising:an impeller having a plurality of vane grooves in a peripheral direction;a motor part rotating the impeller;a casing having a pump chamber rotatably housing the impeller;an intake port introducing a fuel from an outside of the casing into the pump chamber;a discharge port discharging the fuel from the pump chamber to the outside of the casing;a fuel flow channel being provided in the casing to be an annular shape corresponding to the vane grooves of the impeller so as to extend from the intake port to the discharge port;a vapor discharge hole through which the vapor can be discharged from the fuel flow channel toward the outside of the casing;a detection unit detecting a generation of the vapor in the pump chamber and the fuel flow channel;a normal control unit controlling the motor part to adjust a rotation speed of the impeller to a rotation speed corresponding to a target fuel pressure when the detection unit does not detect the generation of the vapor; anda vapor control unit setting the rotation speed of the impeller to be higher than the target rotation speed determined by the normal control unit for a predetermined time to discharge the vapor in the pump chamber and the fuel flow channel to the vapor discharge ...

PUMP OR ROTARY CUTTER FOR OPERATION IN A FLUID

The invention relates to a fluid pump or rotary cutter having at least one first element (′″) which can be brought from a transport state into an operating state by changing at least one mechanical property. Such a pump can, for example, be a blood pump for the medical, microinvasive area. The object of achieving a transition between the transport state and the operating state which is as comfortable as possible and in so doing leaving a freedom in the design of the corresponding apparatus, in particular of a pump, which is as large as possible, is achieved using the means of the invention in that the first element at least partly comprises a material () or can be filled with a material or material mixture which passes through a chemical reaction, in particular cross-linking, or a crystallization for transition into the operating state. 114-. (canceled)15. A pump for operation in a fluid , the pump comprising:at least one rotor blade, the rotor blade having a first compressed state in which the rotor blade is compressed to a first size and the rotor blade also having a second expanded state in which the rotor blade is expanded to a second size, the second size being larger than the first size;wherein the rotor blade comprises at least in part a material, wherein in the compressed state the material is configured to have a first material property and in the expanded state the material is configured to have a second material property; andwherein the material passes through a material conversion when the rotor blade changes between the first compressed state and the second expanded state.16. The pump of claim 15 , wherein the material conversion is a chemical conversion.17. The pump of claim 15 , wherein the material conversion is a rheological conversion.18. The pump of claim 15 , wherein the first material property and the second material property are a first and second stiffness.19. The pump of claim 15 , wherein the rotor blade has a first shape in the first ...

VACUUM PUMP AND ROTARY CYLINDRICAL BODY INCLUDED IN VACUUM PUMP

A vacuum pump reduces a stress without reducing the rotation speed of a rotating cylindrical body. In an outlet port-side lower portion of a rotor cylindrical portion included in the vacuum pump, a smaller diameter portion having an outer diameter smaller than that of an inlet port-side portion of the rotor cylindrical portion is provided. A lowermost end portion (outlet port-side end portion) of the rotor cylindrical portion is designed longer than a thread groove exhaust element to provide an extending portion. In the extending portion, a smaller diameter portion having an outer diameter smaller than that of the inlet port-side portion of the rotor cylindrical portion which is opposed to the thread groove exhaust element is provided. 1. A vacuum pump comprising:a housing in which an inlet port and an outlet port are formed;a thread-groove exhaust mechanism which is fixed to the housing and has a thread groove;a rotating shaft which is rotatably supported and is enclosed in the housing; anda rotating cylindrical body which is disposed on the rotating shaft and includes an opposed portion opposed to the thread-groove exhaust mechanism via a gap and an extending portion extending downstream of the thread-groove exhaust mechanism, the extending portion including a smaller diameter portion having an outer diameter smaller than an outer diameter of the opposed portion.2. The vacuum pump according to claim 1 , whereinthe smaller diameter portion includes, on a radially outer part thereof, a bottom surface perpendicular to an axial direction of the rotating shaft, andan angle formed between the bottom surface and a radially outer surface of the smaller diameter portion is a right angle.3. The vacuum pump according to claim 2 , whereina position of the bottom surface of the smaller diameter portion coincides with a position of a starting point of the extending portion.4. The vacuum pump according to claim 1 , whereinthe smaller-diameter portion is formed by providing a ...

CAVITATION PUMP UNIT

Provided is a cavitation pump unit. The cavitation pump unit includes a motor, a shaft axially mounted on a motor shaft, a plurality of impellers disposed at a predetermined distance along a circumferential surface of the shaft, and a housing surrounding the shaft and the plurality of impellers. The plurality of impellers includes cutter parts each of which protrudes to be inclined toward an inner surface of the housing in one direction, and cavitation grooves recessed inward in directions facing each other are defined in both side surfaces of each of the cutter parts. 1. A cavitation pump unit comprising:a motor;a shaft axially mounted on a motor shaft;a plurality of impellers disposed at a predetermined distance along a circumferential surface of the shaft; anda housing surrounding the shaft and the plurality of impellers, wherein the plurality of impellers comprise cutter parts each of which protrudes to be inclined toward an inner surface of the housing in one direction, andcavitation grooves recessed inward in directions facing each other are defined in both side surfaces of each of the cutter parts.2. The cavitation pump unit of claim 1 , wherein claim 1 , when viewed in a plane claim 1 , each of the cutter parts comprises:a first side surface defined on one side surface of a top surface thereof and having a linear shape;a second side surface defined on the other side surface of the top surface thereof and having a linear shape by a predetermined length from a portion thereof having a high height to a portion thereof having a low height; anda third side surface having an inclined surface with a width that gradually decreases from an end of the second side surface to the portion having the low height.3. The cavitation pump unit of claim 2 , wherein each of the top surface and the second side surface has a diamond shape claim 2 , andeach of the first side surface and the third side surface has a triangular shape.4. The cavitation pump unit of claim 2 , wherein ...

METHOD OF MONITORING AN IMPELLER PUMP USED IN A MEDICAL APPLICATION

The invention relates to a method of monitoring an impeller pump used in a medical application, wherein the structure-borne noise arising in the impeller pump is measured and this measured structure-borne noise is compared with a reference curve and/or with a limit value, wherein a signal is output as a sign for a disturbance of the operation of the impeller pump. The invention further relates to a blood treatment apparatus in which the aforesaid method is carried out. 1. A method of monitoring an impeller pump used in a medical application by means of structure-borne noise analysis comprising the following steps:measuring the structure-borne noise arising in the impeller pump;comparing the measured structure-borne noise of the impeller pump with a first reference curve and/or with a first limit value;concluding a disturbance of the operation of the impeller pump when the measured structure-borne noise of the impeller pump differs from the reference curve and/or exceeds the limit value;outputting a signal as a characteristic for a disturbance of the operation of the impeller pump.2. A method in accordance with claim 1 , characterized in that the air quantity in the impeller pump is detected.3. A method in accordance with claim 1 , wherein a venting of the impeller pump is carried out when the detected air amount and/or the measured structure-borne noise of the impeller pump differs from the reference curve and/or exceeds the limit value claim 1 , for which purpose collected air is preferably led off via a venting opening of the impeller pump chamber.4. A method in accordance with claim 1 , characterized in that collisions of the impeller with the housing of the impeller pump are detected in the impeller pump.5. A method in accordance with claim 1 , wherein the measurement of the structure-borne noise takes place during the operation of the impeller pump.6. A method in accordance with claim 1 , wherein the impeller pump is arranged in a medical apparatus claim 1 , in ...

FLUID PUMP HAVING AT LEAST ONE IMPELLER BLADE AND A SUPPORT DEVICE

The invention relates to a fluid pump comprising at least one impeller blade () which is rotatable about an axis of rotation () and conveys a fluid in operation and comprising a support device () which supports the at least one impeller blade () in at least one support region, wherein the support device is change-able between a first state in which the rotor is radially compressed and a second state in which the rotor is radially expanded; and wherein at least one impeller blade extends at least partly radially inwardly with respect to the axis of rotation () from the support region/support regions in the radially expanded state of the rotor. 115-. (canceled)16. A fluid pump comprising:a pump housing, a rotor positioned within the pump housing, the rotor having an axis of rotation;an impeller blade that extends radially, has a compressed state and expanded state, has an outer radial edge that extends axially along the length of the blade, and has a longitudinal length that extends within the pump housing;wherein the impeller blade is rotatable about the axis of rotation within the pump housing when in operation, and the rotor is configured to convey a fluid during operation; anda support device coupled to the outer radial edge of the impeller blade, wherein the support device is coupled to the outer radial edge over a coupling length less than a total length of the outer radial edge.17. The fluid pump of claim 16 , wherein the support device at least partly surrounds the at least one impeller blade.18. The fluid pump of claim 16 , wherein the rotor further comprises a hub claim 16 , and wherein the impeller blade extends radially from the hub.19. The fluid pump of claim 16 , wherein the coupling length comprises a plurality of coupling lengths along the outer radial edge claim 16 , wherein a sum of the plurality of coupling lengths is less than the total length of the outer radial edge.20. The fluid pump of claim 16 , wherein the support device comprises a shape ...

PUMP ARRANGEMENT

The subject matter of the present invention is a pump arrangement (), in particular for use in the body's own vessels, having a pump () and a sheath () receiving the pump, bounding a flow passage (S) and having a distal intake opening () and a proximal outflow opening () for producing a driving flow by means of the pump, wherein the pump is arranged in a first fluid-tight section () having the distal intake opening and a second fluid-tight section () includes the proximal outflow opening. In accordance with the invention, a further inlet opening () is present between the first section and the second section and is arranged between the intake opening and the outflow opening, with the first section and the second section being arranged with respect to one another such that the inlet opening opens into the flow proximal to the pump. 115-. (canceled)16. A blood pump assembly comprising:a flexible elongate catheter having a proximal end and a distal end;a rotor disposed near the distal end of the flexible elongate catheter;a drive shaft extending through the catheter and coupled to the rotor, wherein the drive shaft rotatably drives the rotor;a pump housing surrounding a first portion of the flexible elongate catheter near the distal end of the flexible elongate catheter, wherein the rotor is located within the pump housing, the pump housing having at least one inlet aperture distal of the rotor;a ring around a circumference of the pump housing; andan outlet hose surrounding a second portion of the flexible elongate catheter and connected to the ring.17. The blood pump assembly of claim 16 , wherein the second portion of the flexible elongate catheter overlaps with the first portion of the flexible elongate catheter.18. The blood pump assembly of claim 17 , wherein the ring comprises radially extending struts that position the outlet hose to be radially spaced apart from the pump housing.19. The blood pump assembly of claim 18 , wherein the ring is proximal of the at ...

SYSTEM AND METHOD FOR SEAL FLUSH

Techniques are provided for seal flush systems. A system may include a reactor circulation pump configured to circulate a slurry through a polymerization reactor. The slurry may include an olefin monomer, a catalyst, and a diluent. The system may also include a catalyst-inhibiting additive system configured to supply a catalyst-inhibiting additive to a seal of the reactor circulation pump and a seal flush system configured to generate a seal flush mixture and supply the seal flush mixture to the seal of the reactor circulation pump. 120.-. (canceled)21. A system , comprising: receive a first input indicative of a demand for a catalyst-inhibiting additive;', 'deliver a first output in response to the first input to adjust a flow of the catalyst-inhibiting additive to be delivered to a seal of a reactor circulation pump;', 'receive a second input indicative of a demand for a seal flush mixture; and', 'deliver a second output in response to the second input to adjust a flow of the seal flush mixture to be delivered to the seal of the reactor circulation pump., 'one or more automation controllers configured to22. The system of claim 21 , wherein the one or more automation controllers are configured to:receive a third input indicative of a demand for a seal flush; anddeliver a third output in response to the third input to adjust a flow of the seal flush to be combined with the catalyst-inhibiting additive to generate the seal flush mixture.23. The system of claim 22 , wherein the third output comprises a control signal to an actuator of a seal flush control valve claim 22 , or a control signal to an actuator of a seal flush pump claim 22 , or any combination thereof.24. The system of claim 21 , wherein the first output comprises a control signal to an actuator of a catalyst-inhibiting control valve claim 21 , or a control signal to an actuator of a catalyst-inhibiting pump claim 21 , or any combination thereof.25. The system of claim 21 , wherein the second output ...

Pump

A pump with a housing, in which an electric motor of a pump step which can be driven by a shaft of the electric motor is arranged. A second pump step which can be driven by the shaft is arranged in series with the first pump step, both pump steps being designed as peripheral or lateral channel steps and the running wheels of both pump steps are arranged counter to the direction of conveyance of other pump step. 15.-. (canceled)6. A pump comprising:a housing;an electric motor having a shaft arranged in the housing;a first pump stage arranged in the housing and configured to be driven by the shaft;a first stage impeller of the first pump stage configured to convey liquid in a first direction;a second pump stage arranged in the housing and in series with the first pump stage and configured to be driven by the shaft; anda second stage impeller of the second pump stage configured to convey the liquid in a second direction opposite the first direction.7. The pump as claimed in claim 6 , wherein the first stage impeller and the second stage impeller each have a V-shaped blade arrangement.8. The pump as claimed in claim 7 , wherein respective angles of the V-shaped blade arrangement of the first stage impeller and the second stage impeller are different.9. The pump as claimed in claim 8 , wherein an angle of the V-shaped blade arrangement of the first stage impeller is greater than an angle of the V-shaped blade arrangement of the second stage impeller.10. The use of a pump as claimed in claim 6 , wherein the pump is an SCR pump configured to add an additive to a fuel in a motor vehicle.11. The pump as claimed in claim 9 , wherein the first direction is a main conveying direction. This is a U.S. national stage of application No. PCT/EP2014/071844 filed on Oct. 13, 2014. Priority is claimed on German Application No. DE 10 2013 220 717.4 filed Oct. 14, 2013, the content of which IS incorporated here by reference.1. Field of the InventionThe invention relates to a pump having ...

FUEL PUMP

A fuel pump includes a pump cover that is provided at one end portion of the housing and includes an inlet port, a cover end that is provided at the other end portion of the housing and includes a discharge port, a bearing that is supported by the cover end and rotatably supports an end portion of the shaft on the cover end-side. The cover end includes a base part that covers the other end portion, a discharge part that is connected to the base part and includes the discharge port, a bearing accommodating part which is formed such that a cross-section of the bearing accommodating part perpendicular to a rotation axis of the shaft has an annular shape and which includes an accommodating space that accommodates the bearing, and a connection part that connects together the base part and the bearing accommodating part. A length of the connection part in a direction of the rotation axis is shorter than a length of the base part in the direction of the rotation axis, and a length of the bearing accommodating part in the direction of the rotation axis. 1. A fuel pump comprising:a cylindrical housing;a pump cover that is provided at one end portion of the housing and includes an inlet port through which fuel is drawn into the housing;a cover end that is provided at the other end portion of the housing and includes a discharge port through which fuel is discharged to outside of the housing;a cylindrical stator on which a plurality of winding wires are wound and which is accommodated inside the housing;a rotor that is rotatably provided radially inward of the stator;a shaft that is provided coaxially with the rotor and rotates integrally with the rotor;a bearing that is supported by the cover end and rotatably supports an end portion of the shaft on the cover end side; andan impeller that is provided at an end portion of the shaft on the pump cover side and rotates together with the shaft to pressurize fuel flowing in through the inlet port and to discharge the pressurized ...

Multi-stage pump with enhanced thrust balancing features

A multi-stage pump featuring first and second stages, each stage having an impeller arranged on a rotor of the pump, each impeller having a hub-side and an eye-side, and each impeller configured to pump a liquid through the pump that applies an axial thrust load caused by a pressure difference in an axial direction from the hub-side to the eye-side of each impeller; and a first and second stage pump casing, each casing configured to form a casing enclosure to contain components of the first stage and the second stage, including each impeller, and configured with one or more pump casing openings formed therein and passing thru the pump casing to leak at least some liquid being pumped from inside to outside the casing enclosure to reduce substantially the axial thrust load caused by the pressure difference in the axial direction from the hub-side to the eye-side of each impeller.

BLADE OF AXIAL FLOW IMPELLER AND AXIAL FLOW IMPELLER

The invention relates to a blade () of an axial flow impeller (). Dimensioning rules for the blade () are presented: A=0.2R; B=0.2W; C=0.2R; D=0.2W; E=0.5R; F=(0.1 . . . 0.2)R; G=0.2W; H=0.25R; I=0.1R; J=0.4R; K=0.1W. The first angle α=6°±1°, the second angle α=8°±1° and the third angle α=19° to 25°. R is the lengthwise dimension from the axis of rotation (x) of the impeller to the tip () of the blade (). Width Wis the widthwise dimension of the blade perpendicularly to the lengthwise direction. The invention also relates to an axial flow impeller () having said blades (). 1. A blade of an axial flow impeller , said blade being connectable to a central hub of the impeller , the blade being formed from substantially plate-type material and havinga leading edge,a trailing edge,a tip,a root attachable to the central hub of the impeller,{'sub': '1', 'a first fold extending along the blade in a straight first direction and dividing the blade into a first profile portion located adjacent to the leading edge and a second profile portion, the first and the second profile portions meeting at the first fold such that the first profile portion is angled at a first angle (α) downwardly from the second profile portion,'}{'sub': 2', '3, 'a second fold extending along the blade in a straight second direction which is different from said first direction and located apart from the first fold and dividing the blade further into a third profile portion located adjacent to the trailing edge, said second and third profile portions meeting at said second fold such that the third profile portion is angled at a second angle (α) downwardly from the second profile portion, the second profile portion being angled at a third angle (α) in relation to horizontal plane,'}and, in plan view, the blade has the general form of an enveloping rectangle (R×Wb) with tapering cut-outs at at least root-side corners of the rectangle,{'sub': 'b', 'claim-text': [{'sub': 'b', 'a first cut-out which is adjacent ...

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. 115-. (canceled)16. An intravascular blood pump device for percutaneous insertion into a patient's vasculature to provide cardiac support , the intravascular blood pump device comprising:a drive shaft having a proximal end and a distal end;a rotor, connected to the distal end of the drive shaft;a pump head comprising a distal inlet, a proximal outlet, and an expandable and collapsible pump housing having a proximal end and a distal end, wherein the rotor is located in the expandable and compressible pump housing between the proximal end and the distal end of the pump housing, and, upon actuation, the pump head is configured to pump blood through the intravascular blood pump device;a body cap at a distal end of the intravascular blood pump device, the body cap having a proximal end and a distal end, the proximal end of the body cap being coupled to a distal end of the pump head by a body element, and wherein the body cap comprises an atraumatic ball; andthe body element is an elongate tubular flexible projection, having proximal and distal ends, that projects distally away from the distal end of the pump housing and forms a flexible connection between the distal end of the pump housing and the body cap, wherein the proximal end of the atraumatic ball is positioned distally relative to the distal end of the body element.17. The intravascular blood pump device of claim 16 , wherein the body element is co-axial ...