ЦЕНТРОБЕЖНЫЙ САМОВСАСЫВАЮЩИЙ НАСОС

1. Центробежный самовсасывающий насос с предвключенным струйным аппаратом, содержащий закрепленное на валу рабочее колесо, отвод, напорную камеру с отводящим патрубком, подвод со всасывающим патрубком и предвключенный струйный аппарат с диффузором, смесительной камерой и соплом, отличающийся тем, что предвключенный струйный аппарат выполнен криволинейным. 2. Насос по п.1, отличающийся тем, что сопло предвключенного струйного аппарата расположено преимущественно в нижней части насоса. (19) RU (11) (13) 4 347 U1 (51) МПК F04D 9/02 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 95115401/20, 31.08.1995 (46) Опубликовано: 16.06.1997 (71) Заявитель(и): Несытов Евгений Константинович 4 3 4 7 (73) Патентообладатель(и): Несытов Евгений Константинович, Акционерное общество "Калугатрансмаш" R U (72) Автор(ы): Козлов С.Н., Кочерга И.А., Красильников В.В., Несытов Е.К., Бажал В.И., Огарь Ю.С., Пиковский И.М., Самойлов В.И. 4 3 4 7 R U (57) Формула полезной модели 1. Центробежный самовсасывающий насос с предвключенным струйным аппаратом, содержащий закрепленное на валу рабочее колесо, отвод, напорную камеру с отводящим патрубком, подвод со всасывающим патрубком и предвключенный струйный аппарат с диффузором, смесительной камерой и соплом, отличающийся тем, что предвключенный струйный аппарат выполнен криволинейным. 2. Насос по п.1, отличающийся тем, что сопло предвключенного струйного аппарата расположено преимущественно в нижней части насоса. Ñòðàíèöà: 1 U 1 U 1 (54) ЦЕНТРОБЕЖНЫЙ САМОВСАСЫВАЮЩИЙ НАСОС U 1 U 1 4 3 4 7 4 3 4 7 R U R U Ñòðàíèöà: 2 RU 4 347 U1 RU 4 347 U1 RU 4 347 U1

САМОВСАСЫВАЮЩИЙ ЦЕНТРОБЕЖНЫЙ НАСОС

Самовсасывающий центробежный насос, содержащий корпус с рабочим колесом, всасывающую и напорную камеры, спиральную камеру с языком, отличающийся тем, что язык спиральной камеры выполнен съемным и установлен с возможностью регулируемого перемещения и фиксации относительно рабочего колеса. (19) RU (11) (13) 7 717 U1 (51) МПК F04D 9/02 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 97115266/20, 12.09.1997 (46) Опубликовано: 16.09.1998 (71) Заявитель(и): ГПО "Уралвагонзавод" (73) Патентообладатель(и): ГПО "Уралвагонзавод" U 1 7 7 1 7 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели Самовсасывающий центробежный насос, содержащий корпус с рабочим колесом, всасывающую и напорную камеры, спиральную камеру с языком, отличающийся тем, что язык спиральной камеры выполнен съемным и установлен с возможностью регулируемого перемещения и фиксации относительно рабочего колеса. 7 7 1 7 (54) САМОВСАСЫВАЮЩИЙ ЦЕНТРОБЕЖНЫЙ НАСОС R U (72) Автор(ы): Пашков И.Т., Андронов В.А., Гельман М.Б., Жеребин С.Б. U 1 U 1 7 7 1 7 7 7 1 7 R U R U Ñòðàíèöà: 2 RU 7 717 U1 RU 7 717 U1 RU 7 717 U1 RU 7 717 U1 RU 7 717 U1 RU 7 717 U1

ЦЕНТРОБЕЖНЫЙ НАСОС

Центробежный насос, содержащий нагнетательную ступень, включающую рабочее колесо, установленное на приводном валу, и бустерную ступень, включающую установленные на отдельном валу предвключенное колесо и турбинное колесо, выполненное центростремительным, выход которого расположен вдоль вала бустерной ступени, отличающийся тем, что нагнетательная ступень содержит как минимум два рабочих колеса и соединена с бустерной ступенью внутренней переводной полостью насоса. (19) RU (11) 23 182 (13) U1 (51) МПК F04D 9/04 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2001129562/20 , 01.11.2001 (24) Дата начала отсчета срока действия патента: 01.11.2001 (46) Опубликовано: 27.05.2002 (72) Автор(ы): Махянов Х.М., Солодченков В.Ф., Калыгин Е.Н. 2 3 1 8 2 R U (57) Формула полезной модели Центробежный насос, содержащий нагнетательную ступень, включающую рабочее колесо, установленное на приводном валу, и бустерную ступень, включающую установленные на отдельном валу предвключенное колесо и турбинное колесо, выполненное центростремительным, выход которого расположен вдоль вала бустерной ступени, отличающийся тем, что нагнетательная ступень содержит как минимум два рабочих колеса и соединена с бустерной ступенью внутренней переводной полостью насоса. Ñòðàíèöà: 1 U 1 U 1 (54) ЦЕНТРОБЕЖНЫЙ НАСОС 2 3 1 8 2 (73) Патентообладатель(и): Общество с ограниченной ответственностью "Завод по ремонту тепломеханического оборудования" R U Адрес для переписки: 423810, г. Набережные Челны, а/я 29, ООО "ЗРТО" (71) Заявитель(и): Общество с ограниченной ответственностью "Завод по ремонту тепломеханического оборудования" U 1 U 1 2 3 1 8 2 2 3 1 8 2 R U R U Ñòðàíèöà: 2 RU 23 182 U1 RU 23 182 U1 RU 23 182 U1 RU 23 182 U1

Насосный агрегат

1. Насосный агрегат, содержащий центробежный насос с рабочей камерой, имеющей центральный всасывающий подвод и периферийный нагнетательный отвод, и с рабочим колесом, расположенным в рабочей камере и имеющим разгрузочное отверстие, гидравлически сообщающее пространство рабочей камеры внутри колеса и пространство рабочей камеры за колесом, и вспомогательный вихревой насос, имеющий связанный общим приводным валом с рабочим колесом импеллер, и рабочую камеру с всасывающим и нагнетательным каналами и разгрузочные пазухи на сопряженных с торцами импеллера поверхностях, отличающийся тем, что всасывающий канал рабочей камеры вихревого насоса сообщается с центральным всасывающим подводом рабочей камеры центробежного насоса, а нагнетательный канал рабочей камеры вихревого насоса сообщается с периферийным нагнетательным отводом рабочей камеры центробежного насоса. 2. Насосный агрегат по п. 1, отличающийся тем, что разгрузочные пазухи выполнены с различной площадью проходного сечения и гидравлически связаны дросселирующим сквозным каналом, размещенным между торцами импеллера. 3. Насосный агрегат по п. 2, отличающийся тем, что разгрузочные пазухи гидравлически сообщены с нагнетательным каналом рабочей камеры вихревого насоса. (19) RU (11) 28 742 (13) U1 (51) МПК F04D 9/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2002103318/20, 08.02.2002 (24) Дата начала отсчета срока действия патента: 08.02.2002 (46) Опубликовано: 10.04.2003 (72) Автор(ы): Винокуров А.Ф. (73) Патентообладатель(и): Закрытое акционерное общество "Помпа" U 1 2 8 7 4 2 R U Ñòðàíèöà: 1 ru CL U 1 (57) Формула полезной модели 1. Насосный агрегат, содержащий центробежный насос с рабочей камерой, имеющей центральный всасывающий подвод и периферийный нагнетательный отвод, и с рабочим колесом, расположенным в рабочей камере и имеющим разгрузочное отверстие, гидравлически сообщающее пространство рабочей камеры внутри колеса и пространство ...

Центробежный насос

1. Центробежный насос, содержащий корпус с всасывающей полостью, одну или несколько последовательно сообщенных своими входными и выходными полостями рабочих ступеней с рабочими колесами, которые соединены с рабочим валом, и устройство для предотвращения кавитации, расположенное во всасывающей полости, отличающийся тем, что корпус выполнен виде пакета соосно расположенных дисков, зажатых между передней, расположенной со стороны всасывающей полости, и задней крышками, рабочие колеса расположены между дисками, соединение рабочих колес с валом выполнено разборным, устройство для предотвращения кавитации выполнено в виде дополнительной насосной ступени, включающей трубчатый статор, и расположенный в нем шнековый рабочий орган, связанный с рабочим валом насоса, при этом полость статора дополнительной насосной ступени сообщена со всасывающей полостью насоса и с входной полостью первой ступени, а отношение диаметра шнекового рабочего органа к наибольшему диаметру рабочего колеса первой ступени и отношение длины шнекового рабочего органа к наибольшему диаметру рабочего колеса первой ступени соответственно составляет 0,4≤d/D≤0,8 и 0,2≤L/D≤0,6, где d - наибольший диаметр шнекового рабочего органа, D - наибольший диаметр рабочего колеса первой ступени, L - длина шнекового рабочего органа. 2. Насос по п.1, отличающийся тем, что между рабочим колесом первой ступени и шнековым рабочим органом дополнительной ступени расположен элемент с профилированной поверхностью, обеспечивающей плавный переход из полости статора к входной полости первой ступени. 3. Насос по п.1, отличающийся тем, что статор дополнительной насосной ступени выполнен коническим и направлен своей вершиной в строну первой ступени. 4. Насос по п.1, отличающийся тем, что статор дополнительной насосной ступени выполнен цилиндрическим. (19) RU (11) 33 412 (13) U1 (51) МПК F04D 9/04 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2003119220/20 , 03.07 ...

ЦЕНТРОБЕЖНЫЙ САМОВСАСЫВАЮЩИЙ НАСОС

Центробежный самовсасывающий насос, содержащий корпус со всасывающим и напорным отверстиями, направляющий аппарат, рабочее колесо с входной воронкой и щелевым уплотнением, струйный аппарат, состоящий из сопла с центрирующей втулкой и изогнутого диффузора со входом и выходом, а также кольцевой канал, отличающийся тем, что выход изогнутого диффузора струйного аппарата размещен во входной воронке рабочего колеса в пределах длины щелевого уплотнения, причем площадь кольцевого канала, ограниченная диаметром внутренней поверхности входной воронки рабочего колеса и диаметром наружной поверхности выходной части изогнутого диффузора, выбрана из условия равенства скоростей основного потока перекачиваемой жидкости и утечек через щелевое уплотнение. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 74 673 (13) U1 (51) МПК F04D 9/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008105314/22 , 14.02.2008 (24) Дата начала отсчета срока действия патента: 14.02.2008 (45) Опубликовано: 10.07.2008 (72) Автор(ы): Несытов Евгений Константинович (RU) (73) Патентообладатель(и): Несытов Евгений Константинович (RU) U 1 7 4 6 7 3 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Центробежный самовсасывающий насос, содержащий корпус со всасывающим и напорным отверстиями, направляющий аппарат, рабочее колесо с входной воронкой и щелевым уплотнением, струйный аппарат, состоящий из сопла с центрирующей втулкой и изогнутого диффузора со входом и выходом, а также кольцевой канал, отличающийся тем, что выход изогнутого диффузора струйного аппарата размещен во входной воронке рабочего колеса в пределах длины щелевого уплотнения, причем площадь кольцевого канала, ограниченная диаметром внутренней поверхности входной воронки рабочего колеса и диаметром наружной поверхности выходной части изогнутого диффузора, выбрана из условия равенства скоростей основного потока перекачиваемой жидкости и утечек через щелевое ...

НАСОСНЫЙ АГРЕГАТ ДЛЯ ПОДАЧИ ПИТАТЕЛЬНОЙ ВОДЫ В ПАРОГЕНЕРАТОРЫ ЭНЕРГОБЛОКОВ АЭС

1. Насосный агрегат для подачи питательной воды в парогенераторы энергоблоков АЭС, содержащий приводное устройство и центробежный горизонтальный двухкорпусной насос, отличающийся тем, что насос выполнен двухпоточным с встречно расположенными рабочими колесами одностороннего входа во всех его ступенях и с предвключенными устройствами, расположенными перед рабочими колесами первых ступеней в обоих рабочих потоках. 2. Насосный агрегат по п.1, отличающийся тем, что насос выполнен с одним общим отводом от концевых ступеней в обоих рабочих потоках. 3. Насосный агрегат по п.2, отличающийся тем, что отвод насоса выполнен спиральным или кольцевым. 4. Насосный агрегат по п.2 или 3, отличающийся тем, что за рабочими колесами концевых ступеней в обоих рабочих потоках насоса установлен общий для этих ступеней направляющий аппарат. 5. Насосный агрегат по п.1, отличающийся тем, что насос имеет один подвод рабочей жидкости, являющийся общим для обоих рабочих потоков. 6. Насосный агрегат по п.5, отличающийся тем, что подвод насоса выполнен с разделительным ребром, стабилизирующим распределение подачи рабочей жидкости по потокам. 7. Насосный агрегат по п.1, отличающийся тем, что насос выполнен с отдельными подводами рабочей жидкости для каждого рабочего потока. 8. Насосный агрегат по п.1, отличающийся тем, что приводное устройство выполнено в виде паровой конденсационной турбины. 9. Насосный агрегат по п.1, отличающийся тем, что приводное устройство выполнено в виде электродвигателя. И 1 104649 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 104 649” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 07.12.2019 Дата внесения записи в Государственный реестр: 15.09.2020 Дата публикации и номер бюллетеня: 15.09.2020 Бюл. №26 Стр.: 1 па бУЭ9УО0 ЕП

ШНЕКОЦЕНТРОБЕЖНЫЙ НАСОС

Шнекоцентробежный насос, содержащий центробежное колесо и закрепленное на втулке предвключенное шнековое колесо, установленные на одном валу, и спиральный отвод с коническим диффузором, предвключенное шнековое колесо выполнено оседиагональным с винтовыми лопастями переменного шага, верхние кромки которых очерчивают цилиндрическую или коническую поверхность при вращении колеса, причем упомянутая втулка выполнена с монотонно увеличивающимся диаметром от входа к выходу. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F04D 9/04 (13) 113 794 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2011108539/06, 05.03.2011 (24) Дата начала отсчета срока действия патента: 05.03.2011 (72) Автор(ы): Кудеяров Владимир Николаевич (RU) (73) Патентообладатель(и): Общество с ограниченной ответственностью "Аккорд Эстейт" (RU) R U Приоритет(ы): (22) Дата подачи заявки: 05.03.2011 (45) Опубликовано: 27.02.2012 Бюл. № 6 R U 1 1 3 7 9 4 Формула полезной модели Шнекоцентробежный насос, содержащий центробежное колесо и закрепленное на втулке предвключенное шнековое колесо, установленные на одном валу, и спиральный отвод с коническим диффузором, предвключенное шнековое колесо выполнено оседиагональным с винтовыми лопастями переменного шага, верхние кромки которых очерчивают цилиндрическую или коническую поверхность при вращении колеса, причем упомянутая втулка выполнена с монотонно увеличивающимся диаметром от входа к выходу. Стр.: 1 U 1 U 1 (54) ШНЕКОЦЕНТРОБЕЖНЫЙ НАСОС 1 1 3 7 9 4 Адрес для переписки: 121165, Москва, Г-165, а/я 15, ООО "ППФЮСТИС" U 1 U 1 1 1 3 7 9 4 1 1 3 7 9 4 R U R U Стр.: 2 RU 5 10 15 20 25 30 35 40 45 113 794 U1 Полезная модель относится к области насосостроения и может быть использована в насосах с высокими антикавитационными и энергетическими качествами. Известен шнекоцентробежный насос, содержащий центробежное колесо, предвключенное шнековое колесо и спиральный отвод с коническим диффузором, в котором ...

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1. Многоступенчатый центробежный насос с бустерным устройством, содержащий напорную и входную крышки, корпус секционного типа с направляющими аппаратами и рабочими колесами, установленными на валу, опирающемся на подшипники скольжения, отличающийся тем, что бустерное устройство образовано предвключенным осевым колесом и лопаточным направляющим аппаратом и установлено на входе в насос во входной крышке, подводящее устройство жидкости в насос выполнено осевым, а подшипник скольжения со стороны входной крышки выполнен на перекачиваемой жидкости и размещен во втулке направляющего аппарата. 2. Насос по п.1, отличающийся тем, что втулка предвключенного осевого колеса выполнена профилированной с увеличивающимся от входа к выходу диаметром, а лопастная система предвключенного осевого колеса имеет густоту лопастной решетки на наружном диаметре в интервале 2,0-4,0. 3. Насос по п.1 или 2, отличающийся тем, что лопастная система предвключенного осевого колеса выполнена многорядной. 4. Насос по п.1, отличающийся тем, что лопаточная система направляющего аппарата бустерного устройства выполнена многокаскадной. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 116 920 U1 (51) МПК F04D 1/06 (2006.01) F04D 9/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2011144409/06, 03.11.2011 (24) Дата начала отсчета срока действия патента: 03.11.2011 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): Елин Александр Валерьевич (UA), Елин Валерий Константинович (UA), Давиденко Андрей Константинович (UA) 15.09.2011 UA U201111047 (45) Опубликовано: 10.06.2012 Бюл. № 16 1 1 6 9 2 0 R U Формула полезной модели 1. Многоступенчатый центробежный насос с бустерным устройством, содержащий напорную и входную крышки, корпус секционного типа с направляющими аппаратами и рабочими колесами, установленными на валу, опирающемся на подшипники скольжения, отличающийся тем, что бустерное устройство образовано предвключенным осевым колесом и ...

ВЕРТИКАЛЬНЫЙ ЭЛЕКТРОНАСОСНЫЙ АГРЕГАТ

1. Вертикальный электронасосный агрегат, содержащий электродвигатель, сопряженный с центробежным насосом, рабочее колесо которого кинематически связано с предвключенным шнеком, расположенным во всасывающем патрубке насоса, снабженном удлиненной погружной трубой, отличающийся тем, что предвключенный шнек расположен рядом с рабочим колесом центробежного насоса, а в нижней части погружной трубы закреплен фильтр, выше которого установлен обратный клапан, при этом погружная труба снабжена заливочной трубой с возможностью заполнения погружной трубы жидкостью до уровня рабочего колеса центробежного насоса перед началом работы агрегата. 2. Вертикальный электронасосный агрегат по п.1, отличающийся тем, что погружная труба выполнена секционной. 3. Вертикальный электронасосный агрегат по п.1, отличающийся тем, что между рабочим колесом и электродвигателем установлено торцевое уплотнение. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 143 464 U1 (51) МПК F04D 13/06 (2006.01) F04D 9/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014107396/06, 26.02.2014 (24) Дата начала отсчета срока действия патента: 26.02.2014 (73) Патентообладатель(и): Открытое акционерное общество (ОАО) "Турбонасос" (RU) (45) Опубликовано: 20.07.2014 Бюл. № 20 1 4 3 4 6 4 R U Формула полезной модели 1. Вертикальный электронасосный агрегат, содержащий электродвигатель, сопряженный с центробежным насосом, рабочее колесо которого кинематически связано с предвключенным шнеком, расположенным во всасывающем патрубке насоса, снабженном удлиненной погружной трубой, отличающийся тем, что предвключенный шнек расположен рядом с рабочим колесом центробежного насоса, а в нижней части погружной трубы закреплен фильтр, выше которого установлен обратный клапан, при этом погружная труба снабжена заливочной трубой с возможностью заполнения погружной трубы жидкостью до уровня рабочего колеса центробежного насоса перед началом работы агрегата. 2. Вертикальный ...

САМОВСАСЫВАЮЩАЯ НАСОСНАЯ УСТАНОВКА

1. Самовсасывающая насосная установка, содержащая основной насос с полостями всасывания и нагнетания и сообщенный с ним вспомогательный насос, отличающаяся тем, что основной насос выполнен оседиагональным, а в качестве вспомогательного насоса использован вихревой насос, полость нагнетания основного насоса сообщена с полостью всасывания вспомогательного насоса, а полость нагнетания основного насоса стыкуется с напорным патрубком с запорной арматурой, после которой подключен выход вспомогательного насоса. 2. Самовсасывающая насосная установка по п. 1, отличающаяся тем, что полость нагнетания основного насоса сообщена с полостью всасывания вспомогательного насоса трубопроводом с шаровым краном, а полость нагнетания основного насоса стыкуется с напорным патрубком с дисковым затвором, после которого к напорному патрубку трубопроводом с шаровым краном подключен выход вспомогательного насоса, установка оборудована дренажной системой и контрольно-измерительными приборами. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F04D 9/04 (13) 158 484 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015117440/06, 07.05.2015 (24) Дата начала отсчета срока действия патента: 07.05.2015 (73) Патентообладатель(и): Закрытое акционерное общество "Корвет" (RU) (45) Опубликовано: 10.01.2016 Бюл. № 1 1 5 8 4 8 4 R U Формула полезной модели 1. Самовсасывающая насосная установка, содержащая основной насос с полостями всасывания и нагнетания и сообщенный с ним вспомогательный насос, отличающаяся тем, что основной насос выполнен оседиагональным, а в качестве вспомогательного насоса использован вихревой насос, полость нагнетания основного насоса сообщена с полостью всасывания вспомогательного насоса, а полость нагнетания основного насоса стыкуется с напорным патрубком с запорной арматурой, после которой подключен выход вспомогательного насоса. 2. Самовсасывающая насосная установка по п. 1, отличающаяся тем, что полость нагнетания ...

УСТРОЙСТВО ДЛЯ УВЕЛИЧЕНИЯ КАВИТАЦИОННОГО ЗАПАСА ОСЕВЫХ НАСОСОВ

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ВЕРТИКАЛЬНЫЙ ШНЕКОЦЕНТРОБЕЖНЫЙ НАСОС

Полезная модель относится к области насосостроения, а именно к конструкциям шнекоцентробежных насосов и предназначено для перекачки различных жидкостей в изделиях малых размеров. Вертикальный шнекоцентробежный насос состоит из корпуса центробежного насоса, в котором установлен электродвигатель, на валу которого закреплена крыльчатка, и корпуса шнековой части, внутри которой расположен шнек с винтовыми канавками. Корпус шнековой части и шнек являются легкосъемными за счет присоединения их эластичными трубками к корпусу центробежного насоса и валу электродвигателя. Небольшая часть шнека погружается в жидкость. При включении электродвигателя начинают вращаться вал электродвигателя с размещенной на нем крыльчаткой и шнек, тем самым создается перепад давления и происходит подача жидкости. Жидкость поднимается по винтовым канавкам и постепенно заполняет корпус центробежного насоса, где крыльчатка центробежного насоса выталкивает жидкость из выхода. Прекращение подачи происходит после снижения уровня жидкости до нижней кромки. Когда от насоса требуется максимальная производительность корпус шнековой части и шнек снимаются, а корпус центробежного насоса погружается в жидкость. При невозможности погружения в жидкость корпуса центробежного насоса и для максимального удаления жидкости из емкости необходимо устанавливать шнековую часть. Техническим результатом использования предлагаемой полезной модели является упрощение конструкции шнекоцентробежных насосов, применяемых в малогабаритных изделиях, а также возможность легкой установки и демонтажа шнековой части насоса. Ц 175164 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ Во“ 175 164" 91 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 31.12.2019 Дата внесения записи в Государственный реестр: 07.10.2020 Дата публикации и номер бюллетеня: 07.10.2020 Бюл ...

Шнек центробежного насоса

Полезная модель относится к области устройств, предназначенных для перекачки жидкостей, и может быть использована в промышленности, сельском хозяйстве и для бытовых нужд. Техническим результатом, на достижение которого направлена полезная модель, является снижение вероятности разрушения шнека центробежного насоса. Сущность полезной модели заключается в том, что шнек центробежного насоса содержит ребра жесткости, расположенные вдоль линий тока перекачиваемой среды. 6 з.п. ф-лы, 7 фиг. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 184 384 U1 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ PC9K Государственная регистрация отчуждения исключительного права по договору Лицо(а), передающее(ие) исключительное право: Общество с ограниченной ответственностью Научно-производственная фирма "АДЕС" (RU) (73) Патентообладатель(и): Общество с ограниченной ответственностью "Центробежные машины" (RU) Дата и номер государственной регистрации отчуждения исключительного права: 10.09.2020 РД0340449 Дата внесения записи в Государственный реестр: 10.09.2020 Дата публикации и номер бюллетеня: 10.09.2020 Бюл. №25 1 8 4 3 8 4 Адрес для переписки: 620010, г. Екатеринбург, 5, оф. 229, ООО "Царская привилегия", Левкину А.Ю. R U Приобретатель(и) исключительного права: Общество с ограниченной ответственностью "Центробежные машины" (RU) R U 1 8 4 3 8 4 U 1 U 1 Стр.: 1

УСТРОЙСТВО ПОДДЕРЖАНИЯ УРОВНЯ В ЗАМКНУТОЙ ГАЗОЖИДКОСТНОЙ СИСТЕМЕ

Устройство поддержания уровня в замкнутой газожидкостной системе состоит из насоса циркуляции 5, забирающего жидкость из бака сбора 2 и подающего ее на узел фазовых переходов 1 и инжектор 6. В узле фазовых переходов происходят процессы, изменяющие объем жидкостной фазы в системе: нагрев (охлаждение) или испарение (конденсация). В результате уровень в баке сбора 2 может понизиться или повыситься. При повышении уровня излишняя жидкость через переливную стенку сливается в бак запаса 3. При недостатке инжектор 6 по линии 9 получает рабочую воду от насоса 5, по линии 8 забирает жидкость из бака 3 и подает ее по линии 7 в бак сбора 2, восстанавливая уровень до переливной стенки. Таким образом, на насос подается постоянный подпор столба жидкости, что повышает кавитационную надежность и исключает необходимость регулирования уровня в баке сбора 2 при регулировании его в узле фазового перехода 1. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 185 977 U1 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ QB9K Государственная регистрация предоставления права использования по договору Вид договора: лицензионный Лицо(а), которому(ым) предоставлено право использования: Акционерное общество "Борисоглебский ордена Трудового Красного Знамени завод химического машиностроения" (RU) Дата и номер государственной регистрации предоставления права использования по договору: 31.08.2020 РД0339575 Дата внесения записи в Государственный реестр: 31.08.2020 Дата публикации и номер бюллетеня: 31.08.2020 Бюл. №25 1 8 5 9 7 7 Условия договора: исключительная лицензия на срок до 20.08.2028 на территории РФ. R U Лицо(а), предоставляющее(ие) право использования: Закрытое акционерное общество Научно-производственное внедренческое предприятие "Турбокон" (RU) R U 1 8 5 9 7 7 U 1 U 1 Стр.: 1

НАСОСНАЯ УСТАНОВКА С УСТРОЙСТВОМ ДЛЯ ПОВЫШЕНИЯ КАВИТАЦИОННОГО ЗАПАСА

Насосная установка с устройством для повышения кавитационного запаса центробежных насосов с двусторонним входом воды на рабочее колесо. Насосная установка с устройством для повышения кавитационного запаса центробежных насосов с двусторонним входом воды на рабочее колесо может быть использована на насосных станциях мелиорации и водоснабжения, оборудованных горизонтальными центробежными насосами с двусторонним входом потока на рабочее колесо, с большими колебания уровня воды в водоисточнике. Техническим результатом, достигаемым данной полезной моделью, является работа центробежного насоса в условиях бескавитационного режима, отсутствие вибрации и толчков, как у насоса, так и приводного двигателя при больших колебаниях уровня воды в водоисточнике. 187217 И 1 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ 7 ВУ‘’” 187 2177 41 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 08.05.2020 Дата внесения записи в Государственный реестр: 10.02.2021 Дата публикации и номер бюллетеня: 10.02.2021 Бюл. №4 Стр.: 1 ДЕС па ЕП

Control Algorithm of Variable Speed Pumping System

A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust the flow rate indicative value toward a constant. A value indicative of flow pressure is determined and the motor is controlled to adjust the flow pressure indicative value toward a constant. A selection is made between flow rate control and flow pressure control. In another aspect, the pump is controlled to perform a first operation, and is operated to perform a second water operation. Control of operation of the pump to perform the first water operation is altered in response to operation of the pump to perform the second operation.

Pumping device

A pumping device for pumping a liquid to a higher level comprises a pump having an inlet and an outlet, an inlet tube being located upstream of the inlet for guiding the fluid to the inlet, a siphon being located downstream of the outlet and an outlet tube being located downstream of the siphon for guiding the liquid from the outlet to the outlet tube via the siphon. The outlet tube extends at least beyond a front side of the pump as seen from the pump. With respect to the outlet tube the siphon extends at least partly at the opposite side of said front side.

Pump

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

VERTICAL SELF-PRIMING PUMP

The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, wherein a middle partition plate is provided inside the pump body, and a flow guide body is fixed on the middle partition plate; the motor is fixed on the pump body for driving a pump shaft to rotate; and an impeller that is arranged in the flow guide body is fixed on the lower end of the pump shaft; a backflow gap channel is formed between the outer circumferential surface of the impeller and the inner wall of the flow guide body; and the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, therefore the volume loss generated by the backflow is avoided, and the pump efficiency is improved. 1. A vertical self-priming pump , comprisinga pump body, wherein the inner cavity of the pump body is divided into a gas-liquid separation chamber and a liquid storage chamber through a middle partition plate that is provided with an axial inlet opening, and the gas-liquid separation chamber is above the liquid storage chamber; a flow guide body is fixed on the upper surface of the middle partition plate; the flow guide body is provided with an axial through hole and a radial flow guide hole that is in communication with the axial through hole, and the gas-liquid separation chamber is in communication with the liquid ...

Integrated reciprocating primer drive arrangement

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

Pump device

The invention relates to a pump device for operating vacuum drainage systems and for pumping sewage, in particular on watercrafts. This pump device comprises a drive device having a drive shaft that comprises a first shaft end and a second shaft end and can be rotated by means of the drive device. The pump device further comprises a centrifugal pump which has at least one impeller that is connected in a torque-proof manner to the drive shaft in the region of the first shaft end.

Technique for preventing air lock through stuttered starting and air release slit for pumps

Apparatus, including a pumping system, is provided featuring a pump and a control circuit. The pump has an impeller housing configured with a slit at the top for trapped air to leave the impeller housing once the pump has been submerged. The control circuit is configured to cycle the pump on and off for a predetermined number of cycles so that the trapped air will float to the top and be expelled out the slit when the pump is cycled off. The control circuit is configured to leave the pump on after the predetermined number of cycles.

Priming Protection

Embodiments of the invention provide a pumping system for at least one aquatic application. The pumping system includes a pump, a motor coupled to the pump, and a controller in communication with the motor. The controller determines an actual power consumption of the motor and compares the actual power consumption to a reference power consumption. The controller also determines that the pump is in an unprimed condition if the actual power consumption is less than the reference power consumption and that the pump is in a primed condition if the actual power consumption is at least equal to the reference power consumption.

HYDRAULIC ANTI-CAVITATION SYSTEM

An anti-cavitation system for hydraulic equipment is provided. The anti-cavitation system includes at least one high pressure hydraulic pump, at least one secondary hydraulic pump, and a motor configured to provide power to the secondary hydraulic pump. The anti-cavitation system also includes at least one accumulator fluidly connected to the secondary hydraulic pump, at least one hydraulic manifold, a control module, and at least one anti-cavitation manifold fluidly connected to at least one accumulator, and also fluidly connected to at least one hydraulic manifold. 1. An anti-cavitation system for hydraulic equipment , comprising:at least one high pressure hydraulic pump configured to supply high pressure hydraulic fluid to a hydraulic manifold;at least one secondary hydraulic pump configured to charge at least one accumulator with hydraulic fluid;a motor configured to provide power to the secondary hydraulic pump;at least one accumulator fluidly connected to the secondary hydraulic pump, the accumulator configured to receive hydraulic fluid from the secondary hydraulic pump, the accumulator configured to send hydraulic fluid to an anti-cavitation manifold;at least one hydraulic manifold fluidly connected to the high pressure hydraulic pump, and configured to receive pressurized hydraulic fluid from an anti-cavitation manifold;a control module configured to transmit an electronic signal to the anti-cavitation manifold;at least one anti-cavitation manifold fluidly connected to at least one accumulator and configured to receive pressurized hydraulic fluid from at least one accumulator, wherein the anti-cavitation manifold is also fluidly connected to at least one hydraulic manifold and configured to transfer pressurized hydraulic fluid to at least one hydraulic manifold.2. The anti-cavitation system of claim 1 , wherein the at least one anti-cavitation manifold is configured to transfer pressurized hydraulic fluid to at least one hydraulic manifold only when the ...

FLUID MOVING APPARATUS AND SYSTEM FOR AN ELECTRIC SUBMERSIBLE GAS SEPARATOR

A fluid moving system and apparatus for an electric submersible pump (ESP) is described. A fluid moving system includes a gas separator between an electric submersible pump and an ESP motor, the gas separator including a separation chamber including an impeller and a diffuser, the impeller including a plurality of regressively pitched main vanes interspersed between a plurality of mixer vanes, each of the plurality of main and mixer vanes extending along the hub with a positive slope and a concave top face, and a diffuser, the diffuser including blades extending along a diffuser body in a sloped direction substantially opposite the slope of the impeller main vanes, the blades having a concave top face and a regressive pitch that mirrors the pitch of the impeller main vanes, wherein the impeller vanes and diffuser blades serve to homogenize the well fluid while facilitating downstream movement. 1. A fluid moving apparatus for an electrical submersible gas separator comprising:a rotatable shaft extending longitudinally through the gas separator; a funnel-shaped hub secured to the shaft;', a plurality of main vanes extending along the hub with a first positive slope, the plurality of main vanes comprising a regressive pitch and a main vane chord length, the plurality of main vanes further comprising a cup on an outside edge of the leading edge;', 'a plurality of mixer vanes interposed between the plurality of main vanes, each of the plurality of mixer vanes extending along the hub with a mixer vane chord length smaller than the main vane chord length, each mixer vane having a second positive slope larger than the first positive slope, each of the plurality of mixer vanes comprising a constant pitch;, 'a plurality of impeller vanes, each of the plurality of impeller vanes having a concave top face tilted inward toward the hub, the plurality of impeller vanes further comprising], 'an impeller coupled to the shaft so as to rotate with the shaft inside a separation chamber ...

DUAL PRIMING SYSTEM FOR A PUMP

A dual priming system connected with a centrifugal pump to evacuate gas therefrom includes a positive displacement pump fluidly connectable with the centrifugal pump and a venturi fluidly connectable with the centrifugal pump in parallel with the positive displacement pump. The dual priming system is operational in a first mode, wherein the positive displacement pump is inactive and the venturi is activated, and a second mode, wherein the positive displacement pump is activated and the venturi is activated. 1. A pump system comprising:a centrifugal pump defining a casing with an inlet, an outlet and a vacuum port, the inlet being fluidly connectable with a liquid containing reservoir; and{'claim-text': ['a compressed air source;', 'a positive displacement pump having an inlet port and a discharge port, the inlet port being fluidly connected with the vacuum port of the centrifugal pump;', 'a venturi having an inlet port, an outlet port and a suction port, the inlet port being fluidly connectable with the compressed air source and the suction port being fluidly connectable with the vacuum port of the centrifugal pump in parallel with the inlet port of the positive displacement pump;', 'a check valve positioned upstream and in line with the suction port of the venturi and positioned in parallel with the inlet port of the positive displacement pump, the check valve being oriented in a closed position, substantially preventing fluid flow from the vacuum port of the centrifugal pump to the suction port of the venturi, and actuatable to an open position, permitting fluid flow from the vacuum port of the centrifugal pump to the suction port of the venturi; and', 'a control valve positioned upstream and in-line with the venturi inlet port, the control valve having an inlet fluidly connected with the compressed air source and an outlet fluidly connected with the venturi inlet port, the control valve being actuatable between a closed position, substantially fluidly ...

Liquid treatment apparatus comprising an air trap vessel

A liquid treatment apparatus ( 2 ), comprising a pumping device ( 3 ) configured to pump a liquid ( 4 ) to be treated into at least one treatment chamber ( 6 ) comprising treatment equipment ( 9 ) configured to perform UV-light treatment of the liquid ( 4 ) flowing through the at least one treatment chamber ( 6 ). The liquid treatment apparatus ( 2 ) comprises an air trap vessel ( 5 ) arranged upstream of said pumping device ( 3 ) and provided with an inlet connection ( 22 ) for receiving liquid ( 4 ) to be treated and a first outlet connection ( 24 ) for connection and liquid supply to said pumping device ( 3 ). The air trap vessel ( 5 ) is configured to prevent air bubbles from being sucked into the pumping device ( 3 ) and to be at least partly filled with a priming liquid ( 23 ) before the pumping device ( 3 ) is started and the liquid treatment is initiated, and that the first outlet connection ( 24 ) being arranged below surface level of the priming liquid.

Fuel System With Liquid Ring Pump With Centrifugal Air/Fuel Separator

A fuel system incorporating a boost pump unit, a boost pump unit and method of pumping fuel are provided. The fuel system and boost pump unit are preferably self-priming and do not utilize an airframe mounted pump for supplying fuel for an aircraft combustor. The boost pump unit includes a liquid ring pump and an air/fuel separator. The air/fuel separator has an inlet and first and second outlet ports. The inlet is operably fluidly coupled to an outlet of the liquid ring pump. The air/fuel separator has an arcuate flow path. The first outlet port is in fluid communication with a radially outer portion of the arcuate flow path and the second outlet port is in fluid communication with a radially inner portion of the arcuate flow path. A return line connected to the first outlet port is configured to return fuel to the liquid ring pump.

ANTI-GAS LOCK ELECTRIC SUBMERSIBLE PUMP

An electric submersible pump including a housing having a longitudinal axis extending therethrough; and a plurality of stages disposed within the housing each stage having an impeller and a diffuser, the plurality of stages stackable one upon the other along the longitudinal axis of the housing, wherein one or more of the plurality of stages is a standard flow stage, wherein one or more of the plurality of stages is an anti-gas lock flow stage, and wherein the anti-gas lock flow stages are modified relative the standard flow stages to have decreased incidence of trapped gas. 1. An electric submersible pump comprising:a housing having a longitudinal axis extending therethrough; anda plurality of stages disposed within the housing each stage having an impeller and a diffuser, the plurality of stages stackable one upon the other along the longitudinal axis of the housing,wherein one or more of the plurality of stages is a standard flow stage,wherein one or more of the plurality of stages is an anti-gas lock flow stage, andwherein the anti-gas lock flow stages are modified relative the standard flow stages to have decreased incidence of trapped gas.2. The electric submersible pump of claim 1 , wherein the anti-gas lock flow stages have a fluid leakage point absent in the standard flow stages thereby decreasing the incidence of trapped gas.3. The electric submersible pump of claim 2 , wherein the impeller of the one or more anti-gas lock flow stages comprises a top shroud claim 2 , a bottom shroud claim 2 , and one or more vanes.4. The electric submersible pump of claim 3 , wherein the fluid leakage point comprises apertures formed in one or more of the top shroud claim 3 , the bottom shroud claim 3 , and the one or more vanes.5. The electric submersible pump of claim 3 , wherein the diameter of the top shroud is less than the diameter of the bottom shroud claim 3 , thereby forming the fluid leakage point.6. The electric submersible pump of claim 1 , wherein the housing ...

CAP FOR COOPERATING WITH A FLOW CONTROL ELEMENT OF A VALVE FOR A SELF-PRIMING ELECTRIC PUMP

A cap for cooperating with a flow control element of a valve for a self-priming electric pump, the valve being designed to open and close a recirculation duct for the passage of the recirculating fluid from the impeller assembly to an intake duct, the cap having a tubular body and, coaxially inside the latter, a mushroom-shaped element, which divides, with its head, the cap into a first portion and a second portion to be applied with engagement means at an opening of the recirculation duct outward, respectively in the overhead and underhead installation of the self-priming electric pump, the axial space occupation of the head and of the stem of the mushroom-shaped element that is extended from the head toward the second portion defining two alternative axial positions of interaction with the flow control element of the valve in the overhead and underhead installation. 1. A cap for cooperating with a flow control element of a valve for a self-priming electric pump , said valve being designed to open and close a recirculation duct for the passage of the recirculating fluid from the impeller assembly to the intake duct , wherein said cap has a tubular body and , coaxially inside the latter , a mushroom-shaped element , which divides , with its head , said cap into a first portion and a second portion to be applied with engagement means at an opening of said recirculation duct outward , respectively in the overhead and underhead installation of said self-priming electric pump , the axial space occupation of said head and of the stem of said mushroom-shaped element that is extended from said head toward said second portion defining two alternative axial positions of interaction with the flow control element of said valve in the overhead and underhead installation.2. The cap according to claim 1 , further comprising a first abutment lining for said flow control element on a central part of said head on the side of said first portion and with a second abutment lining for ...

Self-Priming Pump

A self-priming pump is described that has a housing, an inlet, and an outlet. A first impeller has a first pump section that is arranged in a first chamber, and a second impeller has a second pump section that is arranged in a second chamber. A shaft section is provided between the pump sections, and has a shaft end and penetrates an opening in a housing wall. To improve the net positive section head of the pump, the shaft section between a constriction and the shaft end is formed to taper from the shaft end toward the constriction, and the first impeller and shaft section between the constriction and first pump section has a smooth contour.

SYSTEM FOR PRIMING A POOL PUMP

A system for priming a pool pump includes piping that provides fluid communication to or from the pool pump. A valve is in fluid communication with the piping, and the valve has an open position that permits fluid flow through the valve and a shut position that prevents fluid flow through the valve. A priming pump is in fluid communication with the piping. The priming pump includes a suction and a discharge, and the suction of the priming pump connects to the piping upstream from the valve. A sensor generates a control signal reflective of time, fluid flow downstream from the priming pump, and/or fluid flow downstream from the pool pump. A controller receives the control signal, and when the control signal satisfies a predetermined criterion, the controller deenergizes the priming pump, repositions the valve to the open position, and/or energizes the pool pump. 1. A system for priming a pool pump , comprising:piping that provides fluid communication to or from the pool pump;a valve in fluid communication with said piping, wherein said valve has an open position that permits fluid flow through said valve and a shut position that prevents fluid flow through said valve;a priming pump in fluid communication with said piping, wherein said priming pump comprises a suction and a discharge, and said suction of said priming pump directly connects to said piping upstream from said valve;a sensor that generates a control signal reflective of at least one of time, fluid flow downstream from said priming pump, or fluid flow downstream from the pool pump;a controller that receives said control signal, and when said control signal satisfies a predetermined criterion, said controller at least one of deenergizes said priming pump, repositions said valve to said open position, or energizes the pool pump.2. The system for priming a pool pump as in claim 1 , wherein said suction of said priming pump connects to said piping upstream from the pool pump.3. The system for priming a pool ...

CENTRIFUGAL PUMP ASSEMBLY

A centrifugal pump assembly () includes an impeller, an electric drive motor (), driving the impeller (), and a back-flow channel (), forming a flow connection from a delivery side () to a suction side (). A valve (), in a pressure-dependent manner, closes the flow connection. A control device () adjusts/sets the speed (n) of the drive motor (), and is configured with a venting function for venting the centrifugal pump assembly () on operation. According to the venting function, after the detection of an air accumulation, the speed (n) of the drive motor () is automatically reduced, and subsequently the speed (n) is rapidly increased again. A method is also provided for removing an air accumulation from a centrifugal pump assembly during operation, which method includes reducing the speed (n) of the centrifugal pump assembly and subsequently rapidly increasing the speed (n) of the centrifugal pump again. 1. A centrifugal pump assembly comprising:at least one impeller;an electric drive motor driving the impeller;a back-flow channel forming a flow connection from a delivery side of the impeller to a suction side of the impeller;a valve closing, in a pressure-dependent manner, the flow connection; anda control device setting a speed of the drive motor, said control device being further configured with a venting function for venting the centrifugal pump assembly upon operation thereof, wherein the venting function includes a reducing step, after a detection of an air accumulation by way of the control device, automatically reducing the speed of the drive motor and includes an increasing step, subsequently rapidly increasing the speed of the drive motor again.2. A centrifugal pump assembly according to claim 1 , wherein the control device is further configured such that the speed of the drive motor claim 1 , in the reducing step claim 1 , is reduced to such an extent that the valve of the back-flow channel opens.3. A centrifugal pump assembly according to claim 1 , ...

Automatic Initiation of Priming Sequence for Metering Pumps

Metering pumps are typically used to move a specified volume of liquid in a specified time to provide an accurate flow rate. A recurring automatic priming function is provided for operating such a metering pump by running the pump for a short duration and periodically thereafter. This may maintain fluid in the pumping system such that the pump is automatically in a primed configuration. 1. A method for automatically priming a pump comprising the steps of:operating the pump in a priming mode at a priming capacity for a duration period;starting a recurrence timer;operating the pump in its normal operational mode; andoperating the pump in the priming mode for the duration period upon expiration of the recurrence timer.2. The method of claim 1 , further comprising resetting the recurrence timer if the pump pumps fluid during its normal operational mode.3. The method of claim 1 , wherein the duration period is selectively adjustable by a duration period timer.4. The method of claim 1 , wherein a recurrence period measured by the recurrence timer is selectively adjustable.5. The method of claim 1 , wherein the priming capacity comprises an elevated pump capacity that is higher than the pump capacity in its normal operational mode.6. The method of claim 5 , wherein the priming capacity comprises a maximum pump capacity of the pump.7. The method of claim 1 , wherein the pump runs at a selected stroke speed during the duration period.8. The method of claim 1 , wherein the pump runs at a selected stroke length during the duration period.9. The method of claim 1 , further comprising operating the pump in the priming mode when an unprimed condition is sensed.10. The method of claim 1 , further comprising operating the pump in the priming mode until a primed condition is sensed.11. The method of claim 1 , further comprising operating the pump in the priming mode when the pump powers on.12. The method of claim 1 , further comprising selectively enabling the priming mode.13. A ...

Self-Priming Dedicated Water Feature Pump

A self-priming dedicated water feature pump is provided. The water feature pump can include a strainer housing connected to a pump housing. The strainer housing can include a reservoir for allowing water to enter the strainer housing so that the pump can self-prime. The strainer housing can also include a post installed within the reservoir. The post can function to prevent a strainer basket from being installed in the strainer housing. The post can be of sufficient volume and/or geometry to allow enough water to enter the strainer housing so that the water feature pump can self-prime while also preventing a strainer basket from being installed in the strainer housing. 1. A dedicated water feature pump comprising:a base;a strainer housing connected to the base and extending upwardly with respect to the base, the strainer housing defining a reservoir for receiving water through an inlet and an inner wall;a pump housing connected to the strainer housing and extending rearwardly with respect to the strainer housing;a prevention means installed in the reservoir for preventing installation of a strainer basket in the strainer housing;wherein the strainer housing allows the pump to self-prime by preventing a strainer basket from being installed in the strainer housing.2. The dedicated water feature pump of claim 1 , wherein the prevention means is a post.3. The dedicated water feature pump of claim 2 , comprising a cap installed on the post to further prevent installation of a strainer basket in the strainer housing.4. The dedicated water feature pump of claim 1 , comprising a hole between the strainer housing and the pump housing to allow water to flow from the strainer housing to the pump housing.5. The dedicated water feature pump of in combination with a water feature claim 4 , said water feature being one of a spa jets claim 4 , waterfall/sheer fall claim 4 , rain curtain claim 4 , fountain claim 4 , deck jet claim 4 , laminar jet claim 4 , bubbler claim 4 , scupper ...

Solenoid Current Monitoring Method for Leak Detection and Vapor Lock

A metering pump is typically used to move a specified volume of liquid in a specified amount of time. Because it may be desirable to maintain fluid in the pumping system such that the metering pump is maintained in a primed condition, an automatic prime detection function is provided by monitoring the current to a solenoid assembly of the pump. A loss of prime condition can then be detected by comparing the measured current to a characterized selected current value such that operation of the metering pump can be changed based on load.

MULTI-STAGE, SELF-PRIMING CENTRIFUGAL PUMP ASSEMBLY

A multi-stage, self-priming centrifugal pump assembly includes at least two pump stages () which are consecutive in a main flow direction (), and a backflow channel () which lies parallel to at least one a pump stage (). The backflow channel () runs out downstream of the first or a further pump stage (), in the main flow direction (). 1. A multi-stage , self-priming centrifugal pump assembly comprising:at least two pump stages which are consecutive in the a main flow direction and which include a diffuser; and{'b': '4', 'a backflow channel which lies parallel to at least one a pump stage and which runs out downstream of the first or a further pump stage (-) in the main flow direction, wherein the backflow channel runs out downstream of the diffuser of the at least one pump stage.'}2. A centrifugal pump assembly according to claim 1 , wherein the backflow channel runs out downstream of the diffuser of a first pump stage of the at least two pump stages claim 1 , in the main flow direction.3. A centrifugal pump assembly according to claim 1 , further comprising a gas separator is arranged at the exit side of the at least second pump stage.4. A centrifugal pump assembly according to claim 3 , wherein the gas separator is formed by a housing-fixed claim 3 , tubular body which connects onto the diffuser of one of the at least two pump stages and it's the gas separator comprises a wall that comprises at least one recess fluidically connected to the backflow channel.5. A centrifugal pump assembly according to claim 3 , further comprising a buffer chamber arranged between two pump stages of the at least two pump stages which follow the first pump stage in the main flow direction claim 3 , and downstream of the gas separator in the main flow direction.6. A centrifugal pump assembly according to claim 5 , wherein the buffer chamber is formed by a housing-fixed claim 5 , tubular body claim 5 , a housing wall surrounding the tubular body and spaced at a distance and an annular ...

Gas Lock Resolution During Operation Of An Electric Submersible Pump

Gas lock resolution during operation of an electric submersible pump is provided. An example method, module, or computing hardware with software product, detects a gas lock during current operation of an electric submersible pump (ESP) and intervenes to relieve the gas lock without stopping the ESP. After sensing a gas lock condition, an example module calculates a pump speed for attempting gas lock resolution. The example module may decrease the speed of the ESP to flush the gas lock, and then reaccelerate the ESP to check that the gas lock has been eliminated. The example module may apply one or more stored motor speed patterns that iteratively seek a pump speed that succeeds in clearing the gas lock, without stopping the ESP. The example module has built-in protections to protect the ESP from thermal overload and other damage. 1. A system , comprising:an electric submersible pump (ESP);an ESP controller capable of varying a speed of the ESP;a processor;a memory; anda gas lock resolution module configured to eliminate a gas lock in the ESP while the ESP is operating as a pump.2. The system of claim 1 , wherein the gas lock resolution module is configured to resolve the gas lock while the ESP is operating as a pump by:calculating a pump speed for attempting a gas lock resolution;decreasing a speed of the ESP to the calculated pump speed to flush the gas lock; andreaccelerating the ESP to check that the gas lock has been resolved.3. The system of claim 1 , wherein the gas lock resolution module is configured to detect the gas lock in the ESP.4. The system of claim 1 , wherein the gas lock resolution module is configured to send a motor speed pattern to the ESP controller;wherein the motor speed pattern iteratively applies different motor speeds to the ESP to eliminate the gas lock.5. The system of claim 4 , wherein the motor speed pattern causes the ESP to decelerate to successively lower speeds to eliminate the gas lock.6. The system of claim 5 , wherein the motor ...

METHOD FOR PUMPING A LIQUID, PUMPING STATION, AND PUMPING AREA

Pumping method, pumping station, and pumping area Method for pumping liquid from a spent liquid pipeline () and comprising the steps of: providing a first pump (), providing a junction pipeline (), mechanically coupling said junction pipeline () to said first pump () and to said spent liquid pipeline () for allowing liquid to flow from said spent liquid pipeline () to said first pump (). The method is characterized in that said first pump () is a self-priming pump. 2. The method according to claim 1 , wherein said spent liquid pipeline is an underground pipeline.3. The method according to claim 2 , wherein said underground spent liquid pipeline is a pipeline for discharging spent liquid from a well.4. The method according to claim 3 , wherein said well is a pebble trap.5. The method according to claim 1 , wherein it comprises a step of positioning the spent liquid pipeline such that it has a mean inclination of between 10° and 50° relative to a horizontal plane such that said spent liquid inlet is situated at a higher level relative to said spent liquid outlet in a vertical direction.6. The method according to claim 5 , wherein it comprises a step of positioning the spent liquid pipeline such that it has a mean inclination of between 30° and 45° relative to a horizontal plane such that said spent liquid inlet is situated at a higher level relative to said spent liquid outlet in a vertical direction.7. The method according to claim 1 , wherein it comprises a step of positioning said first pump on the surface of the ground.8. The method according to claim 1 , wherein said first pump is controlled as follows:{'b': 1', '1, 'when a level of liquid to be pumped is h or greater, starting said first pump and imposing a pumping speed v≠0 on it;'}{'b': 2', '1', '1', '1, 'if said liquid level is greater than h Подробнее

TRANSFER ASSEMBLY FOR ATTACHMENT TO A FRONT PORTION OF AN AGRICULTURAL VEHICLE AND A METHOD OF USE

A transfer assembly for attachment to a front portion of an agricultural vehicle, i.e. forage harvester, and a method of use are disclosed. The transfer assembly includes a frame, a pump and an air compressor, along with appropriate drive mechanisms. The agricultural vehicle has an engine and drive mechanisms including a first driven pulley. The pump is connected to the first driven pulley through second and third driven pulleys. The pump is secured to the frame and has a fluid inlet and a fluid outlet. A transfer pipe routes the fluid or manure away from the pump and has a coupling connected to its second end. The coupling enables a flexible hose to be attached to it so that the fluid or manure can be directed to another location, such as onto a field. The transfer assembly also includes a control mechanism for operating the pump, air compressor, etc. 1. A transfer assembly for an agricultural vehicle , said agricultural vehicle having an engine equipped to deliver at least 250 horsepower , a drive pulley , a first driven pulley , and a rotatable belt , said rotatable belt connecting said engine to said drive pulley , connecting said drive pulley to said first driven pulley and connecting said first driven pulley to said engine , said transfer assembly comprisinga) a frame removably secured to a front portion of said agricultural vehicle, said frame having a first member spaced apart from a second member, each of said first and second members having an upper arm, a lower arm and a connecting arm joining said upper and lower arms together, and at least one cross member securing said first member to said second member;b) a rotatable cross shaft positioned between said upper arms of said first and second members, said rotatable cross shaft having a first end axially connected to said first driven pulley, said rotatable cross shaft located outward of said first member, and said rotatable cross shaft having a second end;c) a second driven pulley located outward of said ...

COOLING SYSTEM WITH INTEGRATED FILL AND DRAIN PUMP

A cooling system is provided which includes, for instance, a coolant circulation loop, one or more primary coolant pumps, and a fill and drain pump. The primary coolant pump(s) is coupled to facilitate circulating coolant through the coolant circulation loop, and the fill and drain pump facilitates selective filling of the cooling system with the coolant, or draining of the coolant from the cooling system. The fill and drain pump is integrated with the cooling system as a backup coolant pump to the primary coolant pump(s), and circulates the coolant through the coolant circulation loop responsive to an error in the primary coolant pump(s). The primary coolant pump(s) and fill and drain pumps may be different types of pumps, and the cooling system further includes a control system for automatically activating the fill and drain pump upon detection of an error in the primary coolant pump(s). 1. A system comprising: a coolant circulation loop;', 'at least one primary coolant pump coupled to facilitate circulating coolant through the coolant circulation loop; and', 'a fill and drain pump to facilitate selective filling of the cooling system with the coolant in a fill mode, and draining of the coolant from the cooling system in a drain mode, the fill and drain pump being integrated with the cooling system as a backup coolant pump to the at least one primary coolant pump, the fill and drain pump circulating the coolant through the coolant circulation loop in a backup mode responsive to an error in the at least one primary coolant pump., 'a cooling system for cooling one or more electronic components, the cooling system comprising2. The system of claim 1 , wherein the at least one primary coolant pump comprises a first type of coolant pump claim 1 , and the fill and drain pump comprises a second type of coolant pump claim 1 , the first type of coolant pump and the second type of coolant pump being different types of coolant pumps.3. The system of claim 2 , wherein the ...

Self-priming centrifugal pump

A pump with high performance and cleanability includes a casing having a smaller volute and a larger volute; a space between an outer circumference of an impeller and a starting end of the smaller volute being greater than that of the larger volute, generating a circulating flow of self-priming water from the smaller volute to the larger volute; and a diffusing part of the larger volute being formed into an upright, cylindrical self-priming water separating chamber guiding the self-priming water from the smaller volute to flow in for air-water separation. An inner circumference part of the casing is formed concentric with the outer circumference of the impeller with a predetermined space therebetween; defining members are protrusively disposed on the inner circumference part of the casing so as to define the shapes of the two volutes; and the self-priming water separating chamber is made attachable to and detachable from the casing.

Mechanical ventilator with oxygen concentrator

A ventilator, including an enclosure; a tubing configured to receive an input gas; a flow outlet airline in fluid communication with the tubing, wherein the flow outlet airline includes an airline outlet, and the flow outlet airline is configured to supply an output gas to a user via the airline outlet; a breath detection airline including an airline inlet, wherein the airline inlet is separated from the airline outlet of the flow outlet airline, and the breath detection airline is configured to receive breathing gas from the user during exhalation by the user via the airline inlet; a pressure sensor in direct fluid communication with the breath detection airline, wherein the pressure sensor is configured to measure breathing pressure from the user, and the pressure sensor is configured to generate sensor data indicative of breathing by the user.

PUMP CASING WITH ADAPTIVE PRIMER AND IMPELLER

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

ONLINE MONITORING SYSTEM

The present invention discloses an online monitoring system, comprising a self-priming pump, a first sample pipe and a container containing a sample to be tested, and the first sample pipe connects the self-priming pump and the container, and the self-priming pump transports the ample to be tested in the container to the first sample pipe; the online monitoring system further comprises a fluid supplementation device connected with the first sample pipe, and a default level value is preset in the fluid supplementation device, and the fluid supplementation device monitors a level of the sample to be tested in the first sample pipe, and extracts the sample to be tested from the container to supplement to the first sample pipe as the level value of the sample to be tested in the first sample pipe is lower than the default level value. 1. An online monitoring system , comprising a self-priming pump , a first sample pipe and a container containing a sample to be tested , and the first sample pipe connects the self-priming pump and the container , and the self-priming pump transports the ample to be tested in the container to the first sample pipe , whereinthe online monitoring system further comprises a fluid supplementation device connected with the first sample pipe, and a default level value is preset in the fluid supplementation device, and the fluid supplementation device monitors a level of the sample to be tested in the first sample pipe, and extracts the sample to be tested from the container to supplement to the first sample pipe as the level value of the sample to be tested in the first sample pipe is lower than the default level value.2. The online monitoring system according to claim 1 , whereinthe fluid supplementation device comprises a level sensing switch, a pump unit and a fluid supplementation pipe, and the level sensing switch is electrically connected to both the first sample pipe and the pump unit, and the pump unit extracts the sample to be tested ...

CENTRIFUGAL PUMP WITH SELF-CLEANING WEAR PLATE

A centrifugal pump having an impeller assembly within a pump housing and a wear plate positioned in confronting relationship with the impeller assembly. The wear plate includes an annular wear plate portion defining an impeller side that confronts the impeller and further defines an annular portion defining an eye formed generally centrally and has a center point that is substantially aligned with a rotational axis of the impeller. The eye includes a plurality of peripheral notches separated by tooth-like spacer gaps. At least one protrusion extends from the eye towards the impeller at a predetermined angle. Inner and outer radial grooves are formed in the wear plate surface that confronts the impeller. 1. A centrifugal pump , comprisinga) a pump housing;b) an impeller assembly mounted to said pump housing; i) an annular wear plate portion defining an impeller side that confronts said impeller when said wear plate is mounted within said pump housing;', 'ii) said annular portion defining an eye formed generally centrally in said portion and is substantially aligned with a rotational axis of said impeller; and', 'iii) at least one protrusion extending from said eye toward said impeller., 'c) a wear plate mounted within said housing in a confronting relationship with an impeller forming part of said impeller assembly, said wear plate comprising2. The pump of wherein said notches are wider in dimension than said tooth-like gaps.3. The centrifugal pump of said wherein said protrusion includes a prong extending at an angle from a mounting segment formed on said wear plate portion.4. The centrifugal pump of wherein said prong extends at an angle of substantially 45° with respect to a plane defined by said wear plate portion.5. The centrifugal pump of wherein said prong is welded to said mounting segment.6. The centrifugal pump of wherein said prong and mounting segment are integrally formed with said wear plate portion.7. The centrifugal pump of wherein said wear plate is ...

Pump Priming Assemblies

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

Pump

A pump includes an electric motor that is mounted in a motor compartment, a rotor that is mounted in a pump chamber and coaxial to a driven shaft of the motor and driven by the motor, a pump inlet nozzle, and a pump discharge nozzle, wherein the pump is enclosed by a housing and wherein the motor compartment is connected to a surrounding atmosphere by a ventilation channel. The ventilation channel is arranged parallel to the shaft of the motor in the housing and is guided from a lower end of the housing in the region of the pump inlet nozzle up to a passage opening that is formed directly underneath a motor bearing bracket.

Pumping System

A pumping system including a pumping chamber with a fluid sensor having a cylindrical shaft extending into the priming chamber. The sensor has a sensing dome on an end of a cylindrical shaft extending into the priming chamber, with the dome having a vertical base having a diameter less than the cylindrical shaft diameter. The sensor signals a controller whether liquid is present based on an algorithm with settings for dampening of the electromagnetic field, conductance of the electric field, and/or permittivity of the magnetic field using settings which correlate to the fluid environment. The controller controls operation of the pump and primer based on the sensor signal.

CENTRIFUGAL PUMP WITH HIGH AND LOW INLET CONFIGURATIONS

A reconfigurable pump includes a housing with inlet and outlet openings. An inlet adapter is mounted on the housing and includes an inlet passage communicating with the inlet opening. The inlet adapter is removably mounted on the housing and can be removed and repositioned for reconfiguring the pump between low-inlet and high-inlet configurations. In a low-inlet configuration the inlet passage is generally aligned with an impeller rotatably mounted in the housing. A check valve comprising a flapper valve is provided in the low-inlet configuration and prevents backflow. The flapper valve is removable for configuration in a high-inlet configuration with the inlet passage located generally above the impeller level. The inlet adapter can readily be repositioned from outside the pump housing between its low-inlet anti-inlet configurations. 1. A reconfigurable pump with low-inlet and high-inlet configurations , which pump comprises:a housing with an exterior and an enclosed housing interior;an inlet opening from said housing exterior to said housing interior;a discharge opening from said housing interior to said housing exterior;a rotational component rotatably mounted in said housing interior and configured for pumping fluid from said inlet opening to said discharge opening;an inlet adapter mounted on said housing in covering relation over said inlet opening and reconfigurable between a low-inlet configuration and a high-inlet configuration; andsaid rotational component generally aligning with said inlet in said low-inlet configuration and generally being located above said rotational component in said high-inlet configuration.2. The reconfigurable pump according to wherein said inlet adapter includes:first and second ends and an inlet passage located at one of said ends and communicating with said inlet opening; andsaid inlet adapter being configured for inverting between said low-inlet and said hi-inlet configurations.3. The reconfigurable pump according to claim 1 , ...

IMPELLER PUMP

A centrifugal pump comprising a motor with a shaft rotatably extending therefrom and an adapter configured to be mounted to the motor at a first side, the first side including an opening for permitting passage of the shaft therethrough. A volute housing is configured to be mounted to a second side of the adapter, the adapter and volute housing defining a pumping chamber therebetween. An impeller is configured to be disposed within the pumping chamber and rotatably coupled to the shaft via a figured fastener. The impeller includes a first wall having a figured recess defined therein, the figured recessed configured to receive the figured fastener whereby rotation of the shaft causes rotation of the impeller. 1. A centrifugal pump , comprising:a) a motor with a shaft rotatably extending therefrom;b) an adapter configured to be mounted to the motor at a first side, the first side including an opening for permitting passage of the shaft therethrough;c) a volute housing configured to be mounted to a second side of the adapter, the adapter and volute housing defining a pumping chamber therebetween; andd) an impeller configured to be disposed within the pumping chamber and rotatably coupled to the shaft via a figured fastener, wherein the impeller includes a first wall having a figured recess defined therein, the figured recessed configured to receive the figured fastener whereby rotation of the shaft causes rotation of the impeller.2. The centrifugal pump of claim 1 , and further comprising: e) a bore formed in the volute housing on the side opposite the impeller; and f) a removable cover secured to the volute housing claim 1 , the cover configured to seal the bore in the volute housing.3. The centrifugal pump of claim 2 , wherein the removable cover further comprises an inlet orifice claim 2 , the inlet orifice configured to direct fluid into the volute housing.4. The centrifugal pump of claim 1 , and further comprising: e) a bore formed in the volute housing on the side ...

GAS-LOCK RE-PRIME SHAFT PASSAGE IN SUBMERSIBLE WELL PUMP AND METHOD OF RE-PRIMING THE PUMP

A well fluid centrifugal pump has a shaft passage in the shaft. The shaft passage has an open upper end above the impellers and a closed lower end below the impellers. An outlet port extends laterally from the shaft passage. A gas-lock re-priming device in the shaft passage diverts a portion of well fluid in the discharge adapter bore through the shaft passage and out the outlet port. The re-priming device may be a pressure actuated valve that is biased to a closed position and opens when the pressure in the discharge adapter bore drops below a minimum. Alternately, the re-priming device may be an orifice member with an orifice passage that continuously diverts a portion of the well fluid in the discharge adapter bore out the outlet port. 1. An apparatus for pumping well fluid from a well , comprising:a centrifugal pump assembly having a shaft, impellers mounted to the shaft for rotation therewith, an intake at a second end of the pump assembly, and a discharge adapter at a first end of the pump assembly into which well fluid discharged by the impellers flows;a shaft passage extending into the shaft along a longitudinal axis of the pump assembly, the shaft passage having a first end in fluid communication with well fluid in the discharge adapter;at least one outlet port extending laterally from the shaft passage to an inlet of at least one of the impellers; anda gas-lock re-priming device in the shaft passage for diverting a portion of well fluid in the discharge adapter through the shaft passage and out the outlet port.2. The apparatus according to claim 1 , wherein at least one of the outlet ports is adjacent the inlet of the impeller closest to the intake.3. The apparatus according to claim 1 , wherein the re-priming device is located in the shaft passage closer to the discharge adapter than any of the impellers.4. The apparatus according to claim 2 , wherein another one of the outlet ports is at an inlet of another one of the impellers.5. The apparatus according ...

Inertia vacuum assisted self-priming pump

An inertia vacuum assisted self-priming pump, characterized by comprising a centrifugal pump and a rotary vacuum pump, wherein a pedestal is fixed above a frame of the centrifugal pump, a rotary vacuum pump is mounted above the pedestal and covered by an enclosure; The centrifugal pump consists of an eccentric reducer, a suction cover, a volute, an impeller, a casing cover, a shaft, an adaptor, a frame and a discharge check valve.

SYSTEMS AND METHODS FOR ENHANCED DE-GAS SYSTEM IN A VEHICLE

Systems, methods, and non-transitory computer-readable media provide a provide an apparatus for initializing cooling circulation with a de-gas pumping system in a vehicle. The apparatus includes a de-gas tank filled with cooling liquid, disposed at a first height within a chamber of the vehicle, a pump connected with the de-gas tank via a pipe, disposed at a second height lower than the first height within the chamber, and a filling reservoir disposed in proximity to the pump and at a substantially similar height with the second height within the chamber. 1. An apparatus for initializing cooling circulation with a de-gas pumping system in a vehicle , the apparatus comprising:a de-gas tank containing cooling liquid, wherein the de-gas tank is disposed at a first height within a chamber of the vehicle;a pump connected to the de-gas tank via a pipe, wherein the pump is disposed at a second height lower than the first height within the chamber; anda filling reservoir disposed within a set distance to the pump and at a substantially similar height with the second height within the chamber.2. The apparatus of claim 1 , wherein the de-gas tank has a volume of cooling liquid that accounts for a smaller percentage of an overall volume of cooling liquid inside the vehicle compared to a system without the filling reservoir.3. The apparatus of claim 1 , wherein the pump claim 1 , in combination with an operation of the de-gas tank and the filling reservoir claim 1 , is configured to push the cooling liquid through a computing system without air pockets.4. The apparatus of claim 1 , wherein the filling reservoir is configured to remove air pockets within the pump.5. The apparatus of claim 4 , wherein the air pockets within the pump are removed by the cooling liquid being pushed into and filling the pump from the filling reservoir.6. The apparatus of claim 1 , wherein the filling reservoir and the cooling liquid are configured to prime the pump.7. The apparatus of claim 1 , ...

IMPELLER WITH AXIALLY CURVING VANE EXTENSIONS TO PREVENT AIRLOCK

A pump has a housing that includes an inlet to receive a liquid to be pumped, an outlet to provide the liquid being pumped, a pumping chamber between the inlet/outlet; and a motor shaft to rotate in the pumping chamber. The impeller is arranged on the motor shaft, includes radially curved vanes to rotate inside the pumping chamber to pump the liquid from the pumping chamber to the outlet; and includes anti-airlock vanes formed as a set of axially curving vane extensions that extend along the axis of the shaft, rotate with one part inside the pumping chamber, protrude through the inlet and rotate with another part outside the inlet for submerging in liquid to be pumped underneath the pump, draw the liquid through the inlet into the pumping chamber, and provide the liquid to the radially curved vanes to generate pressure to force entrapped air from the pumping chamber. 1. Apparatus comprising: extend along an axis of the motor shaft,', 'rotate with one part configured inside the pumping chamber,', 'protrude through the inlet and rotate with another part configured outside the inlet for submerging in any liquid to be pumped underneath the pump,', 'draw the liquid through the inlet into the pumping chamber, and', 'provide the liquid to the radially curved vanes in order to generate pressure to force any entrapped air out of the pumping chamber of the housing., 'an anti-airlock impeller configured to be mounted on a motor shaft, the anti-airlock impeller having radially curved vanes configured to rotate inside a pumping chamber of a housing of the pump to pump liquid from the pumping chamber to an outlet of the pump, the anti-airlock impeller also having anti-airlock vanes formed as a set of axially curving vane extensions configured to'}2. Apparatus according to claim 1 , wherein the set of axially curving vane extensions are defined by parametric equations in a Cartesian x claim 1 , y claim 1 , z claim 1 , coordinate system with t as a sweep parameter claim 1 , using a ...

PUMP-STORAGE DEVICE AND TRANSPORTATION TOOL INCLUDING THE SAME

A pump-storage device includes a tank, a treatment container, and a vacuum pump. The treatment container includes a first chamber in communication with an inlet. The first chamber includes a bottom wall having a first valve intercommunicated with a second chamber. The second chamber includes a bottom wall having a second valve. The treatment container includes a first control valve having a first duct in communication with the first chamber, a second duct in communication with the second chamber, and a third duct in communication with the tank. The treatment container includes an actuation cylinder for actuating an actuation rod to extend or retract. A first valve plate and a second valve plate are mounted on the actuation rod for controlling opening and closing of the first valve and the second valve. The treatment container includes a second control valve in communication with the first chamber and the vacuum pump. 1. A pump-storage device comprising:a tank;a treatment container including an inlet and a first chamber in communication with the inlet, wherein the first chamber includes a bottom wall having a first valve in communication with a second chamber, wherein the second chamber includes a bottom wall having a second valve, wherein the treatment container includes a first control valve, wherein the first control valve includes a first duct in communication with the first chamber, a second duct in communication with the second chamber, and a third duct in communication with the tank, wherein the treatment container includes an actuation cylinder for actuating an actuation rod to extend or retract, wherein a first valve plate and a second valve plate are mounted on the actuation rod for controlling opening and closing of the first valve and the second valve, and wherein the treatment container includes a second control valve in communication with the first chamber; anda vacuum pump including a tube intercommunicating the vacuum pump with the second control ...

BLOOD PUMP WITH IMPROVED LEAKAGE CONTROL

A blood pump with a stator and rotor wherein the rotor is assembled by bonding the stator components with epoxy. The bonding surfaces of the rotor components are primed with a silane-based primer to improve adhesion between the primer and the rotor components by rendering such surfaces hydrophobic. A bonding surface of one of the stator yoke or the stator sleeve, or both, is treated with a primer that improves wettability of the bonding surface and improves bonding of the epoxy to the binding surface. The device has a bonding surface adhered to epoxy in which a primer was applied on such bonding surface prior to introducing epoxy onto the bonding surface. In addition to improved bond strength, hydrophobic surface would control moister ingress. 1. A blood pump , comprising:a pump motor comprising a rotor portion having proximal and distal ends and a stator portion having proximal and distal ends, wherein the proximal portion of the rotor portion is received into a cavity defined by the stator portion;the rotor portion comprising an impeller, wherein the impeller comprises impeller blades and a drive unit, the impeller blades positioned at the distal end of the rotor portion and not received into the stator and the drive unit positioned in a portion of the rotor received into the stator portion, wherein the drive unit is coupled to the impeller blades;the stator portion comprising a yoke, a coil and a coil holding sleeve, the sleeve defining the cavity into which the proximal portion of the rotor is received;wherein the yoke, coil and sleeve have interior and exterior surfaces, wherein epoxy is introduced between the yoke and the coil and the coil and the sleeve, thereby substantially embedding the coil in epoxy, wherein at least one of the interior surface of the yoke, the exterior surface of the coil, the interior surface of the coil or the exterior surface of the sleeve are treated with a primer prior to the introduction of epoxy therebetween.2. The blood pump of ...

TURBO PUMP VENT ASSEMBLY AND METHOD

A turbo pump vent assembly and method are disclosed. The turbo pump vent assembly comprises: a primary manual actuator operable to deliver an initial volume of air to a turbo pump; and a secondary manual actuator operable to deliver a secondary volume of air to the turbo pump, wherein the secondary volume of air is greater than the initial volume of air. In this way, an uncomplex and reliable vent is provided which can deliver initial volumes of air to slow the to turbo pump initially. Thereafter, the secondary volume of air may be delivered to slow the turbo pump more rapidly than is possible just using further initial volumes of air. Having an apparatus which can deliver differing volumes of air enables the turbo pump to be slowed safely and more quickly than is possible by delivering just the same sized volumes of air. 1. A turbo pump vent assembly , comprising:a primary manual actuator operable to deliver an initial volume of air to a turbo pump; anda secondary manual actuator operable to deliver a secondary volume of air to said turbo pump, wherein said secondary volume of air is greater than said initial volume of air.2. The turbo pump vent assembly of claim 1 , wherein said initial volume of air is less than said secondary volume of air.3. The turbo pump vent assembly of claim 1 , wherein said primary manual actuator has a vent position where said initial volume of air is delivered to said turbo pump and a decoupled position where said initial volume of air is prevented from being delivered to said turbo pump.4. The turbo pump vent assembly of claim 3 , wherein said primary manual actuator is manually configurable between said vent position and said decoupled position.5. The turbo pump vent assembly of claim 3 , wherein said primary manual actuator is biased towards said decoupled position.6. The turbo pump vent assembly of claim 3 , wherein said primary manual actuator is releaseably configurable to said vent position.7. The turbo pump vent assembly of claim ...

Side-Channel Pump and Method for Operating Same

The invention relates to a side-channel pump and to a method for operating a side-channel pump in which an impeller rotates in a working chamber provided with a side channel. According to the invention, the pump is operated at an overspeed with a gas-filled working chamber in a first step. The speed is then reduced to an operating speed in order to pump a liquid. The pump according to the invention has a high suction power as a result of the overspeed, but only gas is drawn initially. 115-. (canceled)16. A method for operating a side-channel pump , said method comprisinga. providing a side-channel pump in which an impeller rotates in a working chamber provided with a side channel, the side-channel pump having an operating speed when pumping liquid and a maximum speed at which the side-channel pump can pump liquid, said operating speed being no greater than said maximum speed;b. operating said side-channel pump at an overspeed when said working chamber is filled with a gas, said overspeed being greater than said operating speed; andc. reducing the speed of said side-channel pump to said operating speed when said working chamber is filled with liquid.17. The method of claim 16 , wherein the overspeed of step b. is at least 50% greater than said operating speed.18. The method of claim 16 , applying a first driving power to said side-channel pump in step a. and applying a second driving power to said side-channel pump in step b. claim 16 , said first driving power being less than said second driving power by at least 10%.19. The method of claim 16 , wherein said operating speed is between 1200 rpm and 4000 rpm.20. The method of claim 16 , wherein the overspeed is between 3600 rpm and 7000 rpm.21. The method of claim 16 , wherein said operating speed is in the range of 1200 rpm to 2000 rpm and said overspeed is in the range of 3600 rpm to 5000 rpm.22. The method of claim 16 , wherein said operating speed is in the range of 2000 rpm to 4000 rpm and said overspeed is in ...

SIMPLE PNEUMATIC EJECTOR PUMP WITH EXHAUST VALVE FOR CONTINUOUS FLOW AIR SOURCE SYSTEM AND METHOD OF USE

A simple pneumatic ejector pump system allows for efficient transfer of a fluid such as water and has an air release port check valve assembly that opens as the chamber of the X-Pump empties so that it rapidly fills with water again. The air release port check valve assembly works with a check valve on a siphon tube to ensure that the pumping process occurs smoothly and at high efficiency. 1. A simple pneumatic ejector pump system comprising:an x-pump in fluid communication with a fluid body via a tube and a siphon tube;the x-pump including an air release port check valve assembly that passes through the lid of a chamber formed by sidewalls and a floor;wherein fluid is moved from the x-pump to the fluid body by air pressure; andwherein the air release port check valve assembly allows the chamber to quickly fill and empty all of the contents thereof.2. The method of transferring a fluid from one place to another , comprising:placing the siphon tube in a fluid body;priming the X-Pump;activating an air supply so that air is forced in the chamber;allowing the chamber to fill with air;allowing the check valve to open and the air release port check valve assembly to open;allowing the chamber to fill with fluid; andallowing the process to repeat. The present invention relates generally to pump systems, and more specifically, to a simple pneumatic ejector pump with exhaust valve for continuous flow air source system that creates a steady fluid flow from one location to another.Pump systems are well known in the art and are effective means to move fluids about. Pumps are commonly used in industries such as agriculture, aquaculture, hydroponics, and aquaponics. There are many types of pumps that use electricity to operate a mechanical device that acts directly on the water to pump it. There are others that use air to act on the water to displace it for pumping. Of those that do, the simple Pneumatic Ejector Pump (PEP) is underutilized as one that does use air. Likely due to ...

Barrel-Type Pump with Venting Device and Associated Method

A centrifugal pump with a barrel casing and a ventilation arrangement is provided. A plug-in unit is arranged in the barrel casing. The plug-in unit has a shaft, and at least one impeller is arranged on the shaft. The impeller is enclosed by a stage casing. The stage casing separates an inner pressure space from an outer pressure space. At least one venting device is arranged in the stage casing. 114-. (canceled)15. A centrifugal pump , comprising:a barrel casing;at least one stage casing located within the barrel casing between an inner pressure space radially inside the at least one stage casing and an outer pressure space between the at least one stage casing and the barrel casing; andat least one venting device arranged in the at least one stage casing arranged to control flow of a media between the inner pressure space and the outer pressure space.16. The centrifugal pump as claimed in claim 15 , whereineach of the at least one venting devices is arranged in a corresponding opening in the at least one stage casing, each opening being arranged to connect the inner pressure space to the outer pressure space.17. The centrifugal pump as claimed in claim 16 , whereineach of the at least one venting devices includes a corresponding flow control element configured to cooperate with the corresponding opening to enable or block flow of the media between the inner pressure space and the outer pressure space.18. The centrifugal pump as claimed in claim 17 , whereinthe flow control element is arranged in a guide.19. The centrifugal pump as claimed in claim 18 , whereinthe guide is a receptacle in the at least one stage casing configured to receive the flow control element.20. The centrifugal pump as claimed in claim 19 , whereinthe opening located on a radially inward side of the receptacle.21. The centrifugal pump as claimed in claim 20 , whereina free cross section for media exchange is present between a wall of the receptacle and the flow control element.22. The ...

PUMP

A description is given of a pump comprising a suction space which is at least partly bounded by a flexible body and which is located between end elements at least one of which can be driven so as to move in a reciprocating manner, a delivery space which surrounds the suction space and around which a housing is provided, and valves provided in the housing and in at least one of the end elements, the valves being constructed such that when the volume of the suction space is increased, a medium is sucked into said suction space, which, when the volume is reduced, flows through one of the valves to the delivery space from which it is expelled when the volume of the delivery space is reduced. 1. A pump comprising:a suction space which is at least partly bounded by a flexible body and which is located between end elements at least one of which is configured so as to move in a reciprocating manner,a delivery space which surrounds the suction space and around which a housing is provided, andvalves provided in the housing and in at least one of the end elements, the valves being constructed such that when the volume of the suction space is increased, a medium is sucked into said suction space, which, when the volume is reduced, flows through one of the valves to the delivery space from which it is expelled when the volume of the delivery space is reduced.2. The pump according to claim 1 , wherein the suction space is a substantially cylindrical space claim 1 , of which at least part of the circumference is formed by the flexible body.3. The pump according to claim 1 , wherein the flexible body is a bellows claim 1 , or a belt claim 1 , tyre claim 1 , in particular an outer tyre.4. The pump according to claim 1 , wherein the at least one valve provided between the suction space and the delivery space in the respective end element is a valve which opens and closes in response to excess pressure and reduced pressure claim 1 , respectively claim 1 , in the suction space.5. The ...

ANTI-AIRLOCK VALVE ASSEMBLY

A pump, having a pump housing with an impeller arranged therein, features an anti-airlock valve assembly configured with a valve housing having a passageway configured with a vent hole to allow air to bleed out of the pump housing into the atmosphere so liquid can fill the pump housing, rise and engage the impeller in order to get the pump running; and a valve ball arranged in the passageway, the valve ball configured to rest against one part of the passageway so air can pass out of the vent hole, and also configured to be light or buoyant enough to respond to the liquid filling the pump housing, float upwardly and rest against another part of the passageway so as not to allow water to escape readily from the vent hole after the liquid rises to a sufficient level and substantially engages the impeller. 1. A pump having a pump housing with an impeller arranged therein , comprising: a valve housing having a passageway configured with a vent hole to allow air to bleed out of a chamber of the pump housing into the atmosphere so liquid can fill the pump housing, rise and engage the impeller in order to get the pump running; and', 'a valve ball arranged in the valve housing, the valve ball configured to rest against one part of the valve housing so air can pass out of the vent hole, and also configured to be light or buoyant enough to respond to the liquid filling the pump housing, float upwardly and rest against another part of the valve housing so as not to allow water to escape readily from the vent hole after the liquid rises to a sufficient level and substantially engages the impeller., 'an anti-airlock valve assembly configured with'}2. A pump according to claim 1 , wherein the anti-airlock valve assembly is configured in claim 1 , or forms an integral part of claim 1 , the pump housing.3. A pump according to claim 1 , wherein the anti-airlock valve assembly is configured on the discharge side of the pump.4. A pump according to claim 1 , wherein the anti-airlock ...

BILGE PUMP HAVING CONCEALED AIR-LOCK VENT

The pump has a pump body having a pump body portion with a vent hole to allow air entrapped in the pump body to bleed out to atmosphere and allow liquid to fill the pump body in order to get the pump running, and also includes a tab receiving portion having a rim defining an opening; and a pump/strainer assembly that includes a base with slots/openings formed therein to receive and strain liquid to be pumped, and includes a strainer retaining tab with a raised rim to be received in the opening of the tab receiving portion and circumferentially engaged by the rim of the opening to hold together the pump/strainer assembly and the pump body. The at least one tab receiving portion and the strainer retaining tab are dimensioned to conceal the vent hole and substantially prevent the liquid from bleeding through the vent hole and squirting outside of the pump body when the pump is running. 1. A pump , including a bilge pump , comprising:a pump body having a pump body portion configured with a vent hole formed therein to allow air entrapped in the pump body to bleed out to atmosphere and allow liquid to fill the pump body in order to get the pump running, and also having at least one tab receiving portion configured with a rim defining or forming an opening; anda pump/strainer assembly having a base configured with one or more slots/openings formed therein to receive and strain liquid to be pumped, and also having at least one strainer retaining tab with a raised rim configured to be received in the opening of the at least one tab receiving portion and circumferentially engaged by the rim defining the opening to hold together the pump/strainer assembly and the pump body, the at least one tab receiving portion and the at least one strainer retaining tab also configured and dimensioned to conceal the vent hole and substantially prevent the liquid from bleeding through the vent hole and squirting outside of the pump body when the pump is running.2. A pump according to claim 1 ...

SELF-PRIMING ASSEMBLY FOR USE IN A MULTI-STAGE PUMP

A self-priming assembly for a multi-stage pump is provided. The self-priming assembly can have a first diffuser, a second diffuser, and an impeller. The first and second diffusers each include a central portion, a diffuser axis, an arcuate channel within the central portion, and a passage extending through the central portion. The first diffuser and the second diffuser are configured to be combined and receive the impeller therebetween with the first diffuser axis, the second diffuser axis, and the impeller axis aligned. 1. A self-priming assembly for a multi-stage pump , the self-priming assembly comprising:a first diffuser with a first central portion, a first diffuser axis, a first arcuate channel within the first central portion, and a first arcuate passage extending through the first central portion, wherein the first arcuate channel and the first arcuate passage are concentric with each other about the first diffuser axis;a second diffuser with a second central portion, a second diffuser axis, a second arcuate channel within the second central portion, and a second arcuate passage extending through the second central portion, wherein the second arcuate channel and the second arcuate passage are concentric with each other about the second diffuser axis; andan impeller with a plurality of chambers radially spaced around a hub and an impeller axis;wherein the first diffuser and the second diffuser are configured to be combined and receive the impeller therebetween with the first diffuser axis, the second diffuser axis, and the impeller axis aligned.2. The self-priming assembly of claim 1 , wherein the first diffuser and the second diffuser are substantially identical.3. The self-priming assembly of claim 1 , wherein the impeller has an axle and the first diffuser and the second diffuser each have a through-hole configured to receive the axle.4. The self-priming assembly of claim 1 , wherein the first arcuate passage is located between the first arcuate channel ...

METHOD AND DEVICE FOR VENTING THE SUCTION SIDE OF A SYNTHETICALLY COMMUTATED HYDRAULIC PUMP

The invention relates to a method of venting a synthetically commutated hydraulic pump (). The connecting fluid conduits (), connecting said synthetically commutated hydraulic pump () with a fluid reservoir () is vented at least on start-up of the synthetically commutated hydraulic pump (), using a fluid intake device () that connects to a fixed displacement pump (). 1. A fluid working machine arrangement , comprising a synthetically commutated hydraulic fluid working machine , having at least one working chamber with at least one actuated valve , wherein said at least one actuated valve fluidly communicates with a connecting fluid conduit , wherein said connecting fluid conduit comprises at least one venting device that is fluidly connected to a fluid intake device.2. The fluid working machine arrangement according to claim 1 , wherein said synthetically commutated hydraulic fluid working machine comprises a plurality of working chambers claim 1 , wherein preferably a plurality of working chambers connect to a common connecting fluid conduit.3. The fluid working machine arrangement according to claim 1 , wherein for at least one of said working chambers said actuated valve(s) connect to a common connecting fluid conduit and/or wherein at least part of said synthetically commutated hydraulic fluid working machine is designed as a synthetically commutated hydraulic fluid pump.4. The fluid working machine arrangement according to claim 1 , wherein said synthetically commutated hydraulic fluid working machine comprises at least one working chamber with at least two actuated valves claim 1 , wherein said at least two actuated valves preferably connect to different connecting fluid conduits.5. The fluid working machine arrangement according to claim 4 , wherein for at least two different connecting fluid conduits each of said fluid conduit comprises a venting device claim 4 , wherein preferably fluid switches are used to selectively connect to said venting devices with ...

Fuel Pump and Fuel Supply System Using the Same

A fuel pump includes a motor having an armature which rotates about an axis, the motor also having a stator which circumferentially surrounds the armature such that a fuel passage is defined between the armature and the stator, whereby rotation of the armature induces a circumferential flow of fuel within the fuel passage; a pumping arrangement which is rotated by the armature and which pumps fuel from a first inlet to a first; a second inlet which introduces fuel into the fuel passage; a second outlet which discharges fuel from the fuel passage; and a flow impedance member in the fuel passage which impedes the circumferential flow of fuel within the fuel passage, thereby generating a pressure gradient across opposing sides of the flow impedance member such that fuel entering the fuel passage is pumped to the second outlet. 1. A fuel pump comprising:a motor having an armature which rotates about an axis, said motor also having a stator which circumferentially surrounds said armature such that a fuel passage is defined radially between said armature and said stator, whereby rotation of said armature induces a circumferential flow of fuel within said fuel passage;a pumping arrangement which is rotated by said armature and which pumps fuel from a first inlet of said fuel pump to a first outlet of said fuel pump;a second inlet which introduces fuel into said fuel passage;a second outlet which discharges fuel from said fuel passage; anda flow impedance member in said fuel passage which impedes said circumferential flow of fuel within said fuel passage, thereby generating a pressure gradient across opposing sides of said flow impedance member within said fuel passage such that fuel entering said fuel passage through said second inlet at a low pressure side of said flow impedance member is pumped through said fuel passage to said second outlet at a high pressure side of said flow impedance member.2. A fuel pump as in claim 1 , further comprising an upper flow barrier ...

Liquid pump and rankine cycle device

A liquid pump includes: a casing; a feed pipe bringing liquid from outside the casing to inside the casing; a pump mechanism provided in the casing and including a suction hole for sucking in the liquid and a discharge hole for discharging the liquid sucked in via the suction hole; a suction space positioned in the casing on a suction-hole inlet side and making a flow path formed by the feed pipe and the suction hole communicate with each other; and a discharge space positioned on a discharge-hole outlet side in the casing and communicating with the discharge hole. The suction space includes a gas accumulation area that is positioned above a center of an opening at casing-side end of the feed pipe, when viewed vertically and that accumulates gas brought into the casing through the feed pipe together with the liquid to separate the gas from the liquid.

Priming and Lubricating System and Method for Marine Pump Impellers

A marine pumping system includes a pump for providing a cooling fluid to, for example, an internal combustion engine. The pumping system includes a pump, a reservoir separate from and upstream of the pump for storing cooling fluid, and plumbing downstream of the pump configured to maintain cooling fluid in the reservoir during non-operation of the pump. The reservoir and plumbing configuration minimize dry run time of the pump.

APPARATUS, SYSTEM AND METHOD FOR FLOW RATE HARMONIZATION IN ELECTRIC SUBMERSIBLE PUMP GAS SEPARATORS

An apparatus, system and method for flow rate harmonization in electric submersible pump (ESP) gas separators. A method for flow rate harmonization in ESP gas separators includes modifying flow of multi-phase well fluid through vent passages of a crossover when a flow rate of a centrifugal pump differs from a flow rate of a gas separator including the crossover, the gas separator serving as the fluid intake into the centrifugal pump. Flow of fluid through vent passages is modified by one of attaching flow sizing inserts into vent passages or production passages of the crossover, or by attaching a funnel to a crossover inlet. A gas separator system includes a series of interchangeable funnels attachable to a fluid entrance of a crossover of the gas separator, wherein interchanging the particular funnel attached to the crossover modifies flow rate output of the gas separator. 1. A method for flow rate harmonization in electric submersible pump gas separators comprising:identifying differences between a flow rate of a centrifugal pump and a flow rate of an attached gas separator that serves as an intake of the centrifugal pump;selecting a funnel having a particularly sized inlet area based on the flow rate difference so identified; andfastening the funnel so selected to a crossover inlet of the attached gas separator, wherein the funnel modifies a proportion of fluid entering the gas separator that vents to an annulus casing.2. The method of claim 1 , wherein the funnel is at least partially conical frustum shaped.3. The method of claim 1 , wherein the particularly sized inlet area of the funnel so selected increases as the flow rate difference increases.4. The method of claim 1 , wherein selecting the funnel of the particularly sized inlet area further comprises increasing the particularly sized inlet area dictated by the flow rate difference when gas volume fraction of well fluid in a well where the centrifugal pump is to be deployed exceeds a threshold.5. The method ...

Density gas separation appartus for electric submersible pumps

A system includes an electric submersible pump (ESP) configured for pumping fluid through a flow path. An autonomous inflow control device (AICD) is included in fluid communication with the flow path to separate one of gas or liquid out of the flow path. A method includes producing liquid from a wellbore using an electric submersible pump (ESP) in the wellbore. The method includes bypassing gas from a headspace the wellbore using an autonomous inflow control device (AICD) to prevent gas locking the ESP.

CENTRIFUGAL PUMP FLOW MODIFIER

There is provided a centrifugal pump comprising a pumping chamber (). The pumping chamber () has an inner surface () defining a pump cavity (); a pump inlet () defined in a first side of the pumping chamber (); a shaft opening () defined substantially centrally in a second side of the pumping chamber (), the second side substantially opposing the first side and arranged to be above the first side, in use; and a pump outlet (). The centrifugal pump further comprises an impeller () retained within the pump cavity (); and a shaft member () mechanically connected to the impeller () through the shaft opening (), whereby rotation of the shaft member () causes rotation of the impeller () about a shaft axis () passing through the shaft opening () and movement of a pumping liquid from the pump inlet () towards the pump outlet (). The centrifugal pump further comprises a flow modifier () provided adjacent to an outer surface () of the pumping chamber () at the shaft opening () to substantially prevent ingress of air into the pump cavity () through the shaft opening () during operation of the pump even when a water level in a liquid tank () surrounding the pumping chamber () drops below a level of the shaft opening (). The flow modifier () comprises an annular portion () having defined therein a further shaft opening () spaced from the shaft opening () and having the shaft member () passing therethrough. The centrifugal pump comprises a spacing member () spacing the annular portion () from the outer surface (). The flow modifier () defines a liquid overflow outlet () for liquid flow from the shaft opening () in a direction substantially transverse to the shaft axis (). In one example, the liquid overflow outlet () is sized to substantially prevent the ingress of air into the pump cavity () through the shaft opening () during operation of the pump, even when the water level in the liquid tank () surrounding the pumping chamber () drops below the level of the shaft opening (). ...

SWIMMING POOL PUMP WITH AN INLET DEFLECTOR AND VARIABLE SIZE IMPELLER

Centrifugal pumps are widely used in swimming pools as part of the recirculation system that sucks water from the swimming pool through the drain and them pumps it back into the pool after filtration. The present invention relates to a centrifugal pump for swimming pools that can accommodate impellers of varying size to attain the proper flow rate for varying circumstances. The centrifugal pump of the present invention also includes a deflector that improves the priming of the pump so as to eliminate or reduce the risk of heat and friction damage to the impeller. 1. A swimming pool pump comprising:a strainer housing having an inlet port and a deflector adjacent to said inlet port within said strainer housing;an impeller that is inserted into an impeller shell that is in fluid communication with said strainer housing and having an outlet port; anda motor that rotates said impeller.2. The swimming pool pump of further comprising a strainer that is inserted into said strainer housing.3. The swimming pool pump of wherein said strainer includes an indentation to accommodate the presence of said deflector.4. The swimming pool pump of further comprising a spacer that is attached to said impeller shell such that said impeller can be larger in size.5. The swimming pool pump of wherein a highest most section of said deflector is higher than a highest most section of said inlet port.6. The swimming pool pump of wherein a highest most section of said deflector is higher than a highest most section of said impeller.7. The swimming pool pump of wherein said strainer housing is sealingly attached to said impeller shell and said motor is sealingly attached to said impeller shell.8. The swimming pool pump of further comprising a cover that is sealingly attached to said strainer housing.9. The swimming pool pump of wherein said deflector forms an additional cavity.10. A swimming pool pump comprising:a strainer housing having a deflector adjacent to an inlet port wherein a top section ...

Inlet Sieve for Self-Priming Floating Pumps

An inlet sieve for a self-priming floating pump features a bottom wall that is carried in a position that underlies the inlet of the self-priming floating pump at a distance therebelow with the inlet of the pump aligned with an axis that passes through the bottom wall of the sieve. A perforated outer wall of the sieve stands upward from a top side of the bottom wall and extends about the axis. The bottom wall features an outer area that spans inwardly from the perforated outer wall toward the axis, and a protuberance that bulges upwardly from the outer area to an apex of the protuberance that is situated at the axis. Water flowing inwardly toward the protuberance from different radial directions is directed smoothly upward into the inlet of the pump with minimal turbulence in order to optimize the performance of the pump. 1. An inlet sieve for a self-priming floating pump , the inlet sieve comprising:a bottom wall; anda perforated outer wall upstanding from a topside the bottom wall;wherein the bottom wall comprises an outer area spanning inwardly from the perforated outer wall toward the axis, and a protuberance that bulges upwardly from the outer area on an axis that passes through said bottom wall at a position spaced across said outer area from the perforated outer wall.2. In combination with a self-priming floating pump having a pump body and an inlet opening at an underside thereof that communicates with an impeller chamber of the pump to draw liquid into and through the impeller chamber under operation of the pump when floating in a body of said liquid , an inlet sieve comprising:a bottom wall; anda perforated outer wall upstanding from a topside the bottom wall and extending about an axis that passes through the bottom wall;wherein the inlet sieve is connectable to the pump in a position placing a bottom wall beneath the inlet of the pump at a distance therebelow with the inlet of the pump aligned with the axis, whereupon openings in said perforated outer ...

SELF-PRIMING CENTRIFUGAL PUMP

A self-priming, centrifugal pump comprising a first housing part having a front wall with an inlet, a second housing part having an outlet, an impeller rotatably arranged in the second housing part and a pump screw rotatably arranged in the first housing part, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, wherein the center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body. 1. A self-priming , centrifugal pump comprisinga first housing part having a front wall with an inlet for receiving liquid,a second housing part having an outlet for expelling the liquid, the first housing part being connected to the second housing part for enabling the liquid to flow from the first housing part and into the second housing part,an impeller rotatably arranged in the second housing part about a central axis for pumping the liquid from the inlet to the outlet when the impeller is rotated,a pump screw rotatably arranged in the first housing part about the central axis, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, whereinthe helical blade comprises an end blade that extends in a direction towards the front wall that faces the helical blade,the helical blade having a first lead angle and the end blade having a second lead angle, the second lead angle being greater than the first lead angle and smaller than 90°.2. A centrifugal pump according to claim 1 , wherein the center body is arranged at a distance from a side of the front wall that faces the center body such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall ...

SELFPRIMING SYSTEM HAVING VALVE FOR A CENTRIFUGAL PUMP

A system including a not self-priming medium pump including a pump head for supply of medium, a valve coupled to the pump head and which includes a passage operated by a float, and an air pump connected to the valve. The system controls the level of the medium in the pump head by the float. The float is shaped such that, when the pump head is filled with medium, an increasing upward force of the float is sufficient to close the passage in time. By virtue of optimized timing of, in particular, the closing, but also the opening, of the passage, both efficiency of the medium pump and service life of the air pump are improved, while the system is self-priming. 115-. (canceled)16. A system comprising:a not self-priming medium pump including a pump head for supply of medium;a valve coupled to the pump head and which includes a passage operated by a float; andan air pump connected to the valve;wherein the system is configured to control a level of the medium in the pump head by the float, and the float is shaped such that, when the pump head is filled with medium, increasing upward force of the float is sufficient close the passage in time.17. The system according to claim 16 , wherein a base of the float contacting the medium is substantially flat.18. The system according to claim 16 , wherein the float is block-shaped or box-shaped.19. The system according to claim 16 , wherein the float is cylinder-shaped.20. The system according to claim 16 , wherein the passage is formed by a plurality of apertures claim 16 , which may be different in section and/or located at mutually different distances from one another claim 16 , or arranged according to a certain pattern.21. The system according to claim 16 , wherein the valve includes a flexible valve body which is movably actuated by the float through a tappet claim 16 , which valve body serves to successively open or close the apertures.22. The system according to claim 21 , wherein the valve includes a fastening member for the ...

High Flow and Low NPSHr Horizontal Pump with Priming Module

A horizontal pumping system has a motor, a pump driven by the motor and a priming module. The pump has a discharge on a first end of the pump, a suction end on a second end of the pump, and a plurality of stages between the suction end and the discharge. Each of the plurality of stages includes an impeller and a diffuser that encases the impeller. Each diffuser is an independent pressure vessel. The priming module may be a wet priming module or a dry priming module. The priming module permits the use of the horizontal pumping system in many applications in which the liquid is not naturally present at the pump intake. 1. A horizontal pumping system comprising:a motor; a discharge on a first end of the pump;', 'a suction end on a second end of the pump, wherein the discharge is between the suction end and the motor; and', 'a plurality of stages between the suction end and the discharge; and, 'a pump driven by the motor, wherein the pump comprisesa priming module.2. The horizontal pumping system of claim 1 , wherein the priming module comprises a dry priming module.3. The horizontal pumping system of claim 2 , wherein the dry priming module comprises:a priming valve positioned at or near the suction end;a vacuum generator connected to the priming valve; anda check valve positioned at or near the discharge end.4. The horizontal pumping system of claim 3 , wherein the vacuum generator comprises a vacuum pump.5. The horizontal pumping system of claim 3 , wherein the vacuum generator comprises a compressed air driven venturi.6. The horizontal pumping system of claim 1 , wherein the priming module comprises a wet priming module.7. The horizontal pumping system of claim 6 , wherein the wet priming module comprises:a priming reservoir; anda priming line connected between the priming reservoir and the suction end.8. The horizontal pumping system of claim 7 , wherein the wet priming module further comprises a fill line connected between the priming reservoir and the discharge.9 ...

SELF-PRIMING CENTRIFUGAL PUMP

A self-priming, centrifugal pump comprising a first housing part having a front wall with an inlet, a second housing part having an outlet, an impeller rotatably arranged in the second housing part and a pump screw rotatably arranged in the first housing part, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, wherein the center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body. 1. A self-priming , centrifugal pump comprisinga first housing part having a front wall with an inlet for receiving liquid,a second housing part having an outlet for expelling the liquid, the first housing part being connected to the second housing part for enabling the liquid to flow from the first housing part and into the second housing part,an impeller rotatably arranged in the second housing part about a central axis for pumping the liquid from the inlet to the outlet when the impeller is rotated,a pump screw rotatably arranged in the first housing part about the central axis, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, whereinthe center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body.2. A centrifugal pump according to claim 1 , wherein the channel has a width of at least 16 mm.3. A centrifugal pump according to claim 1 , wherein the channel has a width of at least 20 mm.4. A centrifugal pump according to claim 1 , wherein the channel extends from the side of the front wall that faces the center ...

CENTRIFUGAL PUMP

A centrifugal pump (), with one or more pumping stages, includes a pressure controlled valve () inside the pump () for supporting self-priming, the pressure controlled valve (). The pressure controlled valve () includes a pretensioned leaf spring () and a valve seat (). The leaf spring () has an opened position and a closed position. In the open position the leaf spring () is distanced from the valve seat (). In the closed position the leaf spring () closes the valve seat (). The leaf spring () and valve seat () are arranged for soft closing. 1. A centrifugal pump comprising:one or more pumping stages;a pressure controlled valve inside the pump for supporting self-priming, the valve comprising a pretensioned leaf spring and a valve seat, the leaf spring having an opened position, in which the leaf spring is distanced from the valve seat and a closed position, in which the leaf spring closes the valve seat, the leaf spring and valve seat being arranged for dampened closing.2. A centrifugal pump according claim 1 , wherein the leaf spring has a preclosed position claim 1 , in which the valve is partially closed.3. A centrifugal pump according claim 2 , wherein the leaf spring has at least one inherent stable position claim 2 , which is the opened position and is forced into the preclosed and the closed positions by fluid forces acting on the leaf spring.4. A centrifugal pump according claim 2 , wherein the leaf spring has two inherent stable positions claim 2 , the opened position and the closed position claim 2 , wherein the leaf spring is held in the closed position by fluid forces.5. A centrifugal pump according claim 1 , wherein the leaf spring has a semi-stable position which is the pre-closed position.6. A centrifugal pump according claim 1 , further comprising a leaf spring support claim 1 , wherein the valve seat is arranged off-center with respect to the leaf spring support.7. A centrifugal pump according claim 2 , wherein the valve seat has a stopping seat ...

APPARATUS, SYSTEM AND METHOD FOR FLOW RATE HARMONIZATION IN ELECTRIC SUBMERSIBLE PUMP GAS SEPARATORS

An apparatus, system and method for flow rate harmonization in electric submersible pump (ESP) gas separators. A method for flow rate harmonization in ESP gas separators includes modifying flow of multi-phase well fluid through vent passages of a crossover when a flow rate of a centrifugal pump differs from a flow rate of a gas separator including the crossover, the gas separator serving as the fluid intake into the centrifugal pump. Flow of fluid through vent passages is modified by one of attaching flow sizing inserts into vent passages or production passages of the crossover, or by attaching a funnel to a crossover inlet. A gas separator system includes a series of interchangeable funnels attachable to a fluid entrance of a crossover of the gas separator, wherein interchanging the particular funnel attached to the crossover modifies flow rate output of the gas separator. 1. A system for flow rate harmonization in electric submersible pump (ESP) gas separators comprising:a series of interchangeable funnels attachab fluid entrance of a crossover of the ESP gas separator;each funnel of the series of interchangeable funnels having a distinctly sized inner diameter;the inner diameter of a particular funnel of the series of interchangeable funnels determining an inlet area of a vent passage of the crossover when the particular funnel is attached to the fluid entrance of the crossover; and wherein interchanging the particular funnel attached to the crossover modifies flow rate output of the gas separator.2. The system of claim 1 , wherein the ESP gas separator serves as an intake for the centrifugal pump.3. The system of claim 1 , wherein the inner diameter of the particular funnel attached to the fluid entrance increases as a flow rate of the centrifugal pump decreases.4. The system of claim 1 , wherein each funnel comprises a cylindrical portion defining the inlet area of the funnel claim 1 , and a conical portion extending from the cylindrical portion to a fluid ...

Internal combustion engine and coolant pump

An engine cylinder block forms a cooling jacket adjacent to a cylinder and that intersects a deck face adapted to mate with a cylinder head. The cooling jacket has an inlet passage intersecting a mounting face adapted to mate with a coolant pump housing. The block forms a vent passage extending from the cooling jacket to the mounting face. The pump housing forms a volute adapted to receive an impeller. The housing forms a discharge passage that fluidly connects to the inlet passage of the block. The pump housing also forms a vent passage the fluidly connects with the vent passage of the block. The vent passages of the block and pump housing are positioned between the deck face of the block and the inlet and discharge passages when the pump housing is connected to the engine block.

Pump

A pump has a main body. An assembling part is formed in the main body and has an assembling chamber. A mounting part is formed in the assembling chamber and has a discharging chamber. An influent hole and an effluent hole are respectively defined through an inner surface of the discharging chamber. A storage hole is defined through the assembling chamber and communicates with the effluent hole. A mounting cover is mounted on the mounting part. A motor is mounted on the main body. An impeller is located in the discharging chamber and connected with the motor. A covering assembly is mounted on the assembling part and has a storage chamber that communicates with the storage hole. When working fluid passes through the effluent hole, some of the working fluid enters the storage chamber via the storage hole, eliminating the need to additionally process the mounting cover.

PUMP

A pump has a main body. An assembling part is formed in the main body and has an assembling chamber. A mounting part is formed in the assembling chamber and has a discharging chamber. An influent hole and an effluent hole are respectively defined through an inner surface of the discharging chamber. A storage hole is defined through the assembling chamber and communicates with the effluent hole. A mounting cover is mounted on the mounting part. A motor is mounted on the main body. An impeller is located in the discharging chamber and connected with the motor. A covering assembly is mounted on the assembling part and has a storage chamber that communicates with the storage hole. When working fluid passes through the effluent hole, some of the working fluid enters the storage chamber via the storage hole, eliminating the need to additionally process the mounting cover.

VERTICAL SELF-PRIMING PUMP

The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, and the pump efficiency is improved. 1. A vertical self-priming pump , comprisinga pump body, wherein an inner cavity of the pump body is divided into a gas-liquid separation chamber and a liquid storage chamber through a middle partition plate that is provided with an axial inlet opening, and the gas-liquid separation chamber is above the liquid storage chamber; a flow guide body is fixed on an upper surface of the middle partition plate; the flow guide body is provided with an axial through hole and a radial flow guide hole that is in communication with the axial through hole, and the gas-liquid separation chamber is in communication with the liquid storage chamber through the axial inlet opening and the radial flow guide hole on the flow guide body;a motor, which is fixed on the top of the pump body for driving a pump shaft to rotate, and the pump shaft downwardly penetrates into the inner cavity of the pump body, and an impeller that is arranged in the axial through hole of the flow guide body is fixed on a lower end of the pump shaft; a backflow gap channel is formed between an outer circumferential surface of the impeller and an inner wall of the ...

AIR RELEASE VALVE

A release valve for a self-priming pump includes a housing, a valve member, an exhaust outlet, a guide stem, a spring, and a bellows. The valve is positioned in a valve opening in the housing and is movable between an open and a closed position. The open position permits the travel of air and fluid through the opening. The closed position closes the valve opening. The valve plug is positioned in the valve opening responsive to pressure in the flow passageway of the housing. The guide stem is coupled to the valve plug and the spring is coupled to the guide stem. The bellows surrounds the spring. 1. A release valve for a self-priming pump having a pumping chamber comprising:a housing having a flow passageway extending therein, said flow passageway having at least one flow passageway inlet for coupling with the pumping chamber;a pressure responsive valve member positioned in at least one valve opening in the housing and being movable between an open and a closed position, with the open position permitting the travel of air and fluid through the opening and the closed position closing the at least one valve opening, with the valve member being movable between a first closed position in which a surface of the valve member blocks the at least one valve opening, a second open position in which flow is permitted through the at least one valve opening, and a third closed position where a surface of the valve member blocks the at least one valve opening;a valve outlet coupled to the housing positioned downstream of the at least one valve opening, with flow moving through the valve outlet when the at least one valve opening is in the second open position;a guide stem coupled to the valve member for assisting in aligning the valve member with the at least one valve opening and permitting movement of the valve member up and down;wherein the valve is operable between a first position where an upper surface of the valve member abuts a lower surface of the at least one valve ...

MODIFIED OIL PUMP FOR USE IN NON-OIL TRANSPORT

The disclosed invention improves on self-priming centrifugal pumps. The improvements facilitate ease of maintenance by allowing the vacuum pulley belt to be changed without the need to disassemble the centrifugal pump to access the vacuum pulley belt. Additionally, issues with float valves becoming restricted leading to loss of prime conditions can be corrected with a disclosed invention. 1. A self-priming fluid transport device comprising:a. a centrifugal pump with a centrifugal pump inlet;b. a centrifugal pump stub shaft coupled to said centrifugal pump;c. a centrifugal pump power device;d. a centrifugal pump power device stub shaft coupled to said centrifugal pump power device;e. a stub shaft connector detachably coupled to said centrifugal pump stub shaft and said centrifugal pump power device stub shaft;f. a vacuum pump;g. a vacuum pump pulley belt in communication with said vacuum pump and at least one of said centrifugal pump stub shaft, said centrifugal pump power device stub shaft, or said stub shaft connector; andh. a float valve in communication with said vacuum pump and said centrifugal; pump inlet.2. The self-priming fluid transport device of claim 1 ,a. wherein said vacuum pump draws a vacuum through said float valve; andb. wherein said float valve is in communication while said centrifugal pump inlet such that fluid entering said float valve first enters said centrifugal pump inlet.3. The self-priming fluid transport device of :a. wherein said float valve further comprises a float valve output aperture and a float buoy;b. wherein said float buoy rests on the surface of fluid in said float valve, andc. wherein said float buoy obstructs said float valve output aperture when the level of said fluid reaches a level to position said float buoy against said float valve output aperture.4. The self-priming fluid transport device of claim 1 , further comprising a centrifugal pump support wherein said centrifugal pump may remain in place when decoupled from ...

HEMISPHERICAL ENTRAINMENT-TYPE HIGH-FLOW SELF-PRIMING CENTRIFUGAL PUMP

A hemispherical entrainment-type high-flow self-priming centrifugal pump includes a hemispherical entrainment system, a pump body and a pump inlet pipe. The hemispherical entrainment system is disposed above the pump body. The hemispherical entrainment system comprises four layers of entrainment cavities, including a spherical entrainment interior cavity, a primary entrainment cavity, a secondary entrainment cavity and a tertiary entrainment cavity. The spherical entrainment interior cavity is a double circular pipeline that ascends in a spiral overlapping manner to wrap a hemispherical surface, and improves the entrainment capacity, while increasing the entrainment area. The primary entrainment cavity is allowed to be in communication with the secondary entrainment cavity and the tertiary entrainment cavity by upward sliding of a sliding check core. The secondary entrainment cavity entrains the gas in the pump inlet pipe, and the primary entrainment cavity entrains the gas in a pump cavity. 1. A hemispherical entrainment-type high-flow self-priming centrifugal pump , comprising a hemispherical entrainment system , a pump body and a pump inlet pipe , wherein the hemispherical entrainment system is disposed above the pump body and comprises an elliptical cross-section pipeline , a housing , a primary separation plate , a secondary separation plate , a spherical entrainment upper cover plate , a spherical entrainment lower cover plate and a sliding check core , wherein the elliptical cross-section pipeline is inclined upward at a certain angle and has a top end connected to a bottom end of the housing , the housing is vertically arranged , the secondary separation plate is disposed in the housing and has a periphery connected to an inner wall of the housing , and the primary separation plate is disposed at a top end of the housing , each of the primary separation plate and the secondary separation plate is provided with a through-hole at a center thereof , and the ...

SELF-PRIMING PUMP WITH HYDROINJECTOR.

System and method of priming a surgical cassette

The present disclosure relates in general to an apparatus and method for priming a liquid or surgical cassette. In one embodiment, an infusion system within the liquid cassette is primed using a forward flow of a liquid and a backward flow of the liquid. The forward flow of the liquid creates a first volume of liquid stored within an infusion conduit, which is connected to an infusion chamber via a first valve. The infusion conduit has an infusion port exposed to a non-liquid environment having a first pressure. A second pressure is created in the infusion chamber that is lower than the first pressure. Opening the first valve causes a second volume of liquid within the infusion conduit to flow over the first valve and towards the infusion chamber. The second volume of liquid is less than or equal to the first volume of liquid.

PUMP DEVICE.

Air eliminating device

Pump.

Pumping device.

Pumping device.

压力控制装置和压力利用装置

压力控制装置(10)具备泵(21)、连结管(30)、第1阀(41)和第2阀(42)。泵(21)具有吸入口(211)与排出口(212)。连结管(30)的第1端与排出口(212)连通，第2端与吸入口(211)连通，连结管具有包含第1端的第1空间(31)、包含第2端的第2空间(32)和第1空间(31)与第2空间(32)之间的第3空间(33)。第1阀(41)在将第1空间(31)与连结管(30)的外部空间连通而不将第1空间(31)与第3空间(33)连通的状态、和不将第1空间(31)与连结管(30)的外部空间连通而将第1空间(31)与第3空间(33)连通的状态之间进行切换。第2阀(42)在将第2空间(32)与第3空间(33)连通的状态、和不将第2空间(32)与第3空间(33)连通的状态之间进行切换。

Gas-lock re-prime device for submersible pumps

A submersible pump assembly has a pump and a valve connected to the outlet of the pump. An outlet of the valve is connected to a riser. A valve member in the valve housing is vertically movable between a pumping position and a priming position, the valve member being biased toward the priming position. A priming conduit connects the outlet of the valve housing to the inlet of the pump for directing well fluids flowing through the conduit into an intake of the pump for re-priming the pump. When the pump is pumping well fluid, the valve member is moved to the pumping position by the fluid pressure, well fluids flowing from the inlet of the valve housing to the outlet of the valve housing but not through the priming conduit. When pumping ceases, the valve member returns to the priming position, well fluids flowing through the priming conduit for re-priming the pump.

Self-priming dedicated water feature pump

A self-priming dedicated water feature pump is provided. The water feature pump can include a strainer housing connected to a pump housing. The strainer housing can include a reservoir for allowing water to enter the strainer housing so that the pump can self-prime. The strainer housing can also include a post installed within the reservoir. The post can function to prevent a strainer basket from being installed in the strainer housing. The post can be of sufficient volume and/or geometry to allow enough water to enter the strainer housing so that the water feature pump can self-prime while also preventing a strainer basket from being installed in the strainer housing.

METHOD FOR STARTING PUMPS

Improved impeller for self-primimg pump, assembly structure thereof and self-primimg pump containing the same

본 발명은 자흡식 펌프용 개량 임펠러 및 그 조립 구조체와 이를 포함하는 자흡식 펌프에 관한 것으로서, The present invention relates to an improved impeller for a self-priming pump and an assembly structure thereof and a self-priming pump including the same. 본 발명에 따른 임펠러는 축공을 포함하는 코어부, 코어부의 외주연으로부터 연장되는 직선상의 다수의 방사상 제1 배플에 의해 내주연이 연결되는 제1 림 및 제1 림과 동일 중심을 가지며 다수의 직선상 제1 배플 형성면의 상하면 중 적어도 일면에 각각 당접하여 위치하고 제1 림보다 작은 직경의 제2 림으로 구성되며, The impeller according to the present invention has the same center as the core portion including the axial hole, the first rim and the first rim connected to the inner circumference by a plurality of radial first baffles in a straight line extending from the outer circumference of the core portion, and a plurality of straight lines. It consists of a second rim having a diameter smaller than the first rim is located in contact with at least one of the upper and lower surfaces of the upper surface of the first baffle, 본 발명에 따른 자흡식 펌프는 흡입 개구 및/또는 토출 개구가 선택적으로 형성되어 있는 제1 및 제2 케이싱과, 본 발명에 따른 임펠러와, 하나 또는 복수의 환형 부재와, 임펠러 구동 수단으로 구성되고, The self-priming pump according to the present invention comprises first and second casings in which the suction opening and / or the discharge opening are selectively formed, the impeller according to the present invention, one or a plurality of annular members, and the impeller driving means. , 본 발명에 따른 자흡식 펌프용 개량 임펠러는 비폐색형 또는 세미폐색형으로서 회전시 강한 흡입압 및 토출압을 발생시킴과 아울러, 유체 중에 이물질이 존재하는 경우에도 폐색의 우려가 거의 없고, 이 임페러를 적용한 본 발명의 펌프 조립 구조체와 구동수단으로 이루어지는 직결식 펌프는 소음과 진동이 적으며, 비교적 간단한 구성으로 상대적으로 큰 양정 및 현격히 증대된 토출압 및 토출 유량을 나타내며, 유지보수 시 배관의 해체 없이도 펌프 내부의 점검이 가능하고, 초기 작동 시 마중물의 도입이 불필요하여 사용이 간편하고 신뢰성이 높다. The improved impeller for the self-priming pump according to the present invention is a non-closed or semi-closed type, which generates a strong suction pressure and a discharge pressure during rotation, and there is almost no fear of blockage even when foreign matter is present in the fluid. Direct pump consisting of the pump assembly structure and the driving means of the ...