УСТАНОВКА ДЛЯ ПОДАЧИ ВОЗДУХА С ЭЛЕКТРОННЫМ ПРЕОБРАЗОВАТЕЛЕМ ТОКА

Изобретение относится к устройствам тормозных систем. Установка для подачи воздуха содержит приводимый в действие двигателем (1) компрессор (2) для производства сжатого воздуха, устройство (3) для осушки для удаления влаги из произведенного сжатого воздуха, электронный преобразователь (4) тока для зависящего от потребления управления компрессором и несколько аналоговых и/или цифровых датчиков (5) для генерации электрических сигналов. Электрические сигналы используются для управления электронным преобразователем (4) тока и для контроля работы и управления компрессором (2). При этом в электронном преобразователе (4) тока осуществляется переработка генерированных датчиками (5) электрических сигналов в сигналы к шине, подготовленные для анализа данных в интерфейсе (6) шины. Технический результат изобретения заключается в возможности установки для подачи воздуха как управлять частотой вращения, так и обрабатывать сигналы диагностирования компрессора. 9 з.п. ф-лы, 2 ил.

ХОЛОДИЛЬНЫЙ АППАРАТ, ПРЕЖДЕ ВСЕГО ДЛЯ ОХЛАЖДЕНИЯ РАЗМЕЩЕННЫХ В КОММУТАЦИОННОМ ШКАФУ КОМПОНЕНТОВ, А ТАКЖЕ СООТВЕТСТВУЮЩЕЕ ПРИМЕНЕНИЕ И СООТВЕТСТВУЮЩИЙ СПОСОБ

Изобретение относится к холодильному аппарату, прежде всего для охлаждения размещенных в коммутационном шкафу компонентов. Технический результат – предложение холодильного аппарата, в котором достаточно единственной конструктивной формы для того, чтобы его можно было эксплуатировать при разных входных переменных напряжениях. Достигается тем, что холодильный аппарат с первым вентилятором для прохождения через первый теплообменник воздуха коммутационного шкафа и со вторым вентилятором для прохождения через второй теплообменник воздуха окружающей среды имеет также источник (1) питания с повышающим и/или понижающим преобразователем (2), который через выпрямитель (3) соединен с широкодиапазонным входом (4) для одно- или многофазного переменного напряжения и заряжает конденсатор (5) до напряжения промежуточного контура, величина которого выше или ниже приложенного к широкодиапазонному входу (4) напряжения сети. Причем блок (6) питания по меньшей мере одного из обоих вентиляторов включен параллельно ...

ПОЛУГЕРМЕТИЧНЫЙ КОМПРЕССОР ХОЛОДИЛЬНОГО АГЕНТА

Изобретение относится к полугерметичному компрессору холодильного агрегата. Полугерметичный компрессор холодильного агента содержит поршневой компрессор и электродвигатель. Общий корпус имеет двигательный участок корпуса для электродвигателя и компрессорный участок корпуса для поршневого компрессора. Чтобы ведущий от всасывающего патрубка в общем корпусе к впускной камере поршневого компрессора находящийся со стороны всасывания тракт холодильного агента и ведущий от выпускной камеры поршневого компрессора к напорному патрубку на общем корпусе, находящийся с напорной стороны тракт холодильного агента, работал более эффективно, предлагается, что электродвигатель выполнен в виде синхронного двигателя, в роторе которого расположены постоянные магниты для синхронного режима работы электродвигателя и короткозамкнутая клетка для запуска электродвигателя в асинхронном режиме работы. Постоянные магниты простираются параллельно оси ротора и выполнены в виде пластинчатых тел, плоские стороны которых ...

Компрессор холодильного агента

Компрессор холодильного агента содержит общий корпус с двигательной секцией корпуса и компрессорной секцией корпуса, которая имеет корпус блока цилиндров с головкой блока цилиндров. Головка блока цилиндров имеет расположенную на корпусе блока цилиндров нижнюю часть головки блока цилиндров, а также замыкающую головку блока цилиндров верхнюю часть головки блока цилиндров по меньшей мере с одной интегрированной в нее выпускной камерой. Головка блока цилиндров укрыта посредством кожуха, который перекрывает верхнюю часть головки блока цилиндров на обращенной от нижней части головки блока цилиндров верхней стороне крышкой кожуха, а также головку блока цилиндров в области ее периферийной стороны охватывающим головку блока цилиндров фартуком кожуха. При использовании изобретения обеспечивается оптимальная защита головки блока цилиндров. 33 з.п. ф-лы, 9 ил.

ПОРШНЕВОЙ КОМПРЕССОР ИЛИ НАСОС И СИСТЕМА ПРИВОДА ПЕРЕНОСНОГО ИНСТРУМЕНТА, ВКЛЮЧАЮЩАЯ ПОРШНЕВОЙ КОМПРЕССОР

... 1. Поршневой компрессор или насос, содержащий ! множество гильз цилиндров, каждая из которых имеет проходящее через него цилиндрическое отверстие; ! множество поршней, каждый из которых уплотнен относительно соответствующей гильзы цилиндра внутри ее цилиндрического отверстия; ! систему привода, соединенную с каждым поршнем, для осуществления его возвратно-поступательного движения в цилиндрическом отверстии соответствующей гильзы цилиндра между полностью выдвинутым положением, наиболее удаленным от системы привода, и полностью задвинутым положением, наиболее близким к системе привода; ! впускной клапан и выпускной клапан, связанные с каждой гильзой цилиндра, причем впускной клапан выполнен с возможностью открывания, когда поршень уходит в полностью задвинутое положение, а закрывания, когда поршень выдвигается из него, и выпускной клапан выполнен с возможностью открывания, когда поршень проходит в полностью выдвинутое положение, и закрывания, когда поршень задвигается от него; ! коллектор ...

КОМПРЕССОРНАЯ СИСТЕМА И СПОСОБ ФУНКЦИОНИРОВАНИЯ КОМПРЕССОРНОЙ СИСТЕМЫ В ЗАВИСИМОСТИ ОТ ФАКТИЧЕСКОЙ СИТУАЦИИ РЕЛЬСОВОГО ТРАНСПОРТНОГО СРЕДСТВА

Изобретение относится к области рельсовых транспортных средств. Компрессорная система включает в себя приводимый в действие от электродвигателя через приводной вал компрессор, резервуар для сжатого воздуха. Электродвигатель выполнен с возможностью настройки посредством регулировочного устройства, по меньшей мере, с одной частотой вращения, в пределах от максимальной частоты вращения до минимальной частоты вращения. В расположенном по ходу потока от компрессора, проводящем сжатый воздух трубопроводе расположен датчик давления для определения давления для регулировочного устройства. Исполнительный орган для непрерывного воздействия на частоту вращения электродвигателя расположен между устройством подачи электроэнергии и электродвигателем. Настройка исполнительного органа осуществляется в соответствии с сенсорным устройством, включающим в себя датчик для регистрации внешнего граничного условия рельсового транспортного средства, через регулировочное устройство. Достигается повышение эффективности ...

ХОЛОДИЛЬНЫЙ КОМПРЕССОР

Изобретение относится к холодильным компрессорам. В компрессорном блоке (12) с корпусом (22) компрессора расположен компрессорный элемент (24) для сжатия хладагента. В приводном блоке (14) с корпусом (26) привода расположен в корпусе (26) привода электродвигатель (32), а на корпусе (26) привода расположены присоединительные клеммы (42, 44, 46) для электродвигателя (32). Содержит электронный функциональный блок (92). Присоединительные клеммы (42, 44, 46) предусмотрены в расположенном на корпусе (26) привода корпусе (142), а в корпусе (142) предусмотрен электронный функциональный блок (92), выполняющий по меньшей мере одну компрессорную функцию и снабженный коммуникационным блоком (312) для обмена данными с внешними приборами (316). Техническим результатом является упрощение соединения холодильного компрессора с электронным функциональным блоком. 3 н. и 21 з.п. ф-лы, 4 ил.

МЕТОД ДИНАМИЧЕСКОЙ ЭНЕРГОСБЕРЕГАЮЩЕЙ СВЕРХПРОВОДЯЩЕЙ ТРАНСПОРТИРОВКИ ПОТОКА СРЕДЫ

... 1. В системе транспортировки, содержащей как минимум одно средство потоко-формирующего энергетического воздействия для обеспечения динамического энергосберегающего процесса сверхпроводящего потока среды, метод энергетической оптимизации включает: негативное модулирование указанного энергетического воздействия с предопределенным законом, предопределенным диапазоном и предопределенной частотой указанного модулирования, измененную для обеспечения плоской формы продольных волн модулируемого энергетического воздействия в потоке, где указанный закон негативного модулирования величины указанного потоко-формирующего энергетического воздействия выбран предопределенной "каплевидной" формы, а указанное модулирование включает сравнительную фазу, когда указанный модулируемый поток среды связан как минимум с одним независимым предопределенным периодическим процессом; и обеспечение минимального значения энергетического отношения контролируемого действующего значения указанной модулируемой потоко-формирующей ...

КОМПРЕССОРНАЯ СИСТЕМА И СПОСОБ ФУНКЦИОНИРОВАНИЯ КОМПРЕССОРНОЙ СИСТЕМЫ В ЗАВИСИМОСТИ ОТ ФАКТИЧЕСКОЙ СИТУАЦИИ РЕЛЬСОВОГО ТРАНСПОРТНОГО СРЕДСТВА

СПОСОБ И КОНТУР РЕГУЛИРОВАНИЯ ДЛЯ РЕГУЛИРОВАНИЯ ЭЛЕКТРИЧЕСКОГО ПРИВОДА ЭЛЕКТРИЧЕСКИ ПРИВОДИМОГО В ДЕЙСТВИЕ КОМПРЕССОРА СЖАТОГО ВОЗДУХА АВТОМОБИЛЯ

Поршневой компрессор

Motorbetriebene Pumpe

Kompressorantreibsystem

Luftfederungssystem

Bei einem Luftfederungssystem wird das Starten eines Kompressors in einem Zustand erleichtert, in dem eine Druckdifferenz auftritt. Es ist ein Luftfederungssystem vorgesehen, bei dem durch einen Kompressor komprimierte Luft mehreren Luftkammern zugeführt wird, die zwischen der Fahrzeugkarosserie und den Rädern bereitgestellt sind und dafür ausgelegt sind, eine Fahrzeughöheneinstellung entsprechend der Zufuhr und dem Auslass von Luft auszuführen. Der Kompressor weist eine Nadel, die mit einem Kolben verbunden ist und sich in Bewegungsrichtung des Kolbens erstreckt, und einen Anker, der die Nadel in Bewegungsrichtung des Kolbens hin- und herbewegt, auf.

Coolant compression device for freezers has rotor rotating on rotor shaft which is fixed to motor housing

The coolant compression device has a compressor (16) driven by an electric motor with a stator and a rotor (7). The rotor can rotate on a rotor shaft (8). The motor (2) is in a housing (3). The rotor shaft is fixed to this housing, and may be made in one piece with it. There may be a baseplate (30) on the crank journal (34) of a crank drive between the motor and the compressor.

Verfahren zur Druckmessung

Verfahren zur Messung des Druckes, der durch einen elektromotorisch angetriebenen Verdichter erzeugt wird, vorzugsweise durch einen elektromotorisch über ein Schubkurbelgetriebe angetriebenen Hubkolbenverdichter (3), wobei die von der Veränderung des Druckes am Verdichterausgang abhängige Veränderung der Drehzahl des den Verdichter antreibenden Elektromotors (2) ermittelt und als druckproportionale Größe für den Betrieb des Verdichters einer Steuerungseinrichtung oder Kontrolleinheit (4) in Form einer Eingangsgröße bereitgestellt wird oder angezeigt wird.

Oszillierende Verdrängerpumpe mit elektrodynamischem Antrieb und Verfahren zu deren Betrieb

Die Erfindung betrifft eine oszillierende Verdrängerpumpe, bevorzugt eine Membranpumpe, mit wenigstens einem mobilen Teil (20), das relativ zu einem festen Teil (30) bewegbar angeordnet ist, wobei das mobile Teil (20) angetrieben ist und selbst ein Verdrängerelement (40) der Verdrängerpumpe (1) antreibt, wobei als Antrieb ein elektrodynamischer Antrieb (10) vorgesehen ist, an den (10) eine Mehrzahl von Spulen (41) und Permanentmagneten (42) vorgesehen und jeweils die Mehrzahl von Spulen (41) oder die Mehrzahl von Permanentmagneten (42) an dem mobilen Teil (20) des Antriebs (10) angeordnet sind, und wobei an dem Antrieb (10) wenigstens ein Führungsglied (50a, 50b) vorgesehen ist, welches dem mobilen Teil (20) eine Bewegung entlang lediglich eines Translationsfreiheitsgrades gestattet. Für die erfindungsgemäße Verdrängerpumpe ist kennzeichnend, dass die Verdrängerpumpe als Membranpumpe (1) ausgebildet ist, der (1) eine Mess- und Steuereinheit (45) mit Datenspeicher und Datenverarbeitungseinrichtung ...

Kompressoraggregat mit Gleichstrommotor in Blockbauweise und Schaltungsanordnung zum Betrieb des Kompressoraggregates

Drehendes Gerät in einem Fahrzeug

Von einer rotierenden Welle angetriebene Kolbenmaschine, insbesondere Kolbenverdichter fuer Kaeltemaschinen

Elektrische Kompressorsteuerung und Kältekreislaufvorrichtung

Eine Steuerung, die einen elektrischen Kompressor (11) steuert, der an ein Fahrzeug montiert ist und eine zweistufige Kompressionskältekreislaufvorrichtung aufbaut, hat einen Verlangsamungsabschnitt (S23), einen Betriebsstoppabschnitt (S25) und einen Neustartabschnitt (S27). Der Verlangsamungsabschnitt verringert eine Drehzahl eines Elektromotors durch Steuern eines Wechselstroms, der an den Elektromotor ausgegeben wird, wenn eine zweistufige Betriebsart, in der ein Zwischendruckkältemittel von einer Zwischendrucköffnung in den elektrischen Kompressor strömt, durchgeführt wird und eine Betriebsstoppanforderung zum Stoppen des elektrischen Kompressors gestellt wird. Der Betriebsstoppabschnitt stoppt den Elektromotor, nachdem der Verlangsamungsabschnitt die Drehzahl des Elektromotors verringert. Der Neustartabschnitt startet den elektrischen Kompressor neu, wenn die Betriebsstoppanforderung aufgehoben wird, nachdem der Betriebsstoppabschnitt den elektrischen Kompressor stoppt.

Baugruppe mit einer Pumpe und einem Montagerahmen

Baugruppe mit einer Pumpe (1) zur Erzeugung von Druckluft und einem Montagerahmen (2), der zur Halterung der Pumpe und zur Montage in oder an einem Fahrzeugsitz eines Kraftfahrzeugs ausgestaltet ist, wobei die Pumpe (1) ein einen Pumpmechanismus umgebendes Pumpengehäuse (10) und einen koaxial damit verbundenen Elektromotor (12) zum Antrieb des Pumpmechanismus aufweist, dadurch gekennzeichnet, dass der Montagerahmen (2) einen längs ausgedehnten Träger (20) und einen ersten und einen zweiten Aufhängungsring (22, 24) aufweist, die von dem Träger (20) in Längsrichtung des Trägers auf Abstand zueinander und einander gegenüberliegend getragen werden, wobei die Öffnung (23) des ersten Aufhängungsringes (22) größer als eine äußere Stirnfläche des Pumpengehäuses (10) und die Öffnung (25) des zweiten Aufhängungsringes (24) größer als die äußere Stirnfläche des Elektromotors (12) ist, und dass an den ersten und zweiten Aufhängungsringen (22, 24) jeweils elastische Bandelemente (26, 28) über deren ...

Verdichter

Verdichter, dessen Zylinder (2) mit dem Kolben (15) mit dem Gestell (10) für den Motor (11) einteilig ausgebildet sein kann, das den Antrieb des Verdichters befestigen kann, wobei der Antrieb den Motor (11), ein Ritzel (12), ein Zahnrad (13), das mit dem Ritzel (12) in Eingriff steht, und ein Gewichtsrad (18) mit einer Kurbel (14) beinhaltet, wobei durch den Motor (11) die Kurbel eine Kreisbewegung durchführt, wodurch der Kolbenkopf (16) des Kolbens (15) im Verdichtungsraum (23) des Zylinders (2) hin und her bewegt wird, so dass die verdichtete Luft in einen Luftvorratsbehälter (4) gedrückt wird, dadurch gekennzeichnet, dass zwischen einer Nebenluftkammer (24) und einer Hauptluftkammer (44) ein Ventil (31) vorgesehen ist.

Aus wenigstens drei Teilen bestehendes Luftpumpensystem

Aus wenigstens drei Teilen (1, 3, 3') bestehendes Luftpumpensystem mit einem Handgerät (1), welches einen elektrisch antreibbaren Motor (7) umfasst und mit wenigstens einem ersten und wenigsten einem zweiten am Handgerät (1) befestigbaren Arbeitskopf (3, 3'), wobei der erste Arbeitskopf (3) und der zweite Arbeitskopf (3') unterschiedliche Pumpeinrichtungen (10) ausgebildet haben, die bei Befestigung des jeweiligen Arbeitskopfes (3, 3') am Handgerät (1) mit dem elektrisch antreibbaren Motor (7) zur Erzeugung eines Luftvolumenstroms in Wirkverbindung gebracht sind.

STEUERVORRICHTUNG, KOMPRESSOR, ELEKTRISCHER KOMPRESSOR, RIEMENGETRIEBENER KOMPRESSOR, FAHRZEUGKLIMAANLAGE UND STEUERVERFAHREN

Es wird eine Steuervorrichtung vorgesehen, die Schutzsteuerung eines Kompressors ohne Fehlfunktion durchführt. Die Steuervorrichtung aktiviert Schutzsteuerung auf einem Kompressor, der in einem Kältemittelkreislauf enthalten ist, basierend auf einem Druckwert, der von einem Drucksensor detektiert wird, der auf einer Niederdruckseite des Kältemittelkreislaufs installiert ist, und einer Änderung mit der Zeit des Druckwerts.

Kompressor mit variabler Verdrängung für Fahrzeug

Kältemittelkompressor und Verfahren zum Herstellen eines Kältemittelkompressors

Kältemittelkompressor mit einem Motor, der in einer Kapsel angeordnet ist, und einem vom Motor angetriebenen Verdichter, dadurch gekennzeichnet, daß der Verdichter (2) in einer becherförmig geschlossenen Montagebuchse (26) angeordnet ist, die in eine Begrenzungswand der Kapsel (6) eingesetzt und mit der Kapsel (6) verbunden ist.

Elektrokompressor

Bei einem Elektrokompressor mit einem Motor (30) und einem elektrischen Schaltkreis (40), der mit einem Kompressionsbereich (20) zusammengefasst ist, ist ein Teil (42) der elektrischen Bauteile des elektrischen Schaltkreises in Räumen zwischen einer zylindrischen äußeren Fläche eines Motorgehäuses und einer imaginären flachen Fläche (S) angeordnet, die in imaginärer Weise die zylindrische äußeren Fläche berührt. Daher können die Räume wirksam genutzt werden, und kann der Elektrokompressor in seiner Größe klein gestaltet werden. Weiter kann der Teil der elektrischen Bauteile wirksam durch ein Kühlmittel im Motorgehäause gekühlt werden. Andererseits wird die äußere Fläche des Motorgehäuses als eine Fläche (122) verwendet, diei einen inneren Raum eines Gehäuses (131) zur Unterbringung des elektrischen Schaltkreises begrenzt. In diesem Fall kann der elektrische Schaltkreis durch das Kühlmittel im Motorgehäuse wirksam gekühlt werden.

Verbesserte Ausführungsform eines Aufpumpgeräts

DREHZAHLERHÖHER

Ein Drehzahlerhöher bzw. eine Übersetzungsvorrichtung weist eine ringförmige Umfangswand, die mit einer Drehung der niedertourigen Welle drehbar ist, eine hochtourige Welle, die innerhalb der Umfangswand angeordnet ist und eine Drehachse hat, die sich in der gleichen Richtung wie jene der Umfangswand erstreckt, und drei Rollelemente auf, die innerhalb der Umfangswand angeordnet und mit sowohl der Umfangswand als auch der hochtourigen Welle in Kontakt sind. Die drei Rollelemente sind an verschiedenen Positionen entlang der Drehachse der hochtourigen Welle angeordnet, wobei sich Drehachsen der drei Rollelemente in der gleichen Richtung wie die Drehachse der hochtourigen Welle erstrecken und die Drehachsen der drei Rollelemente in einer Umfangsrichtung der hochtourigen Welle beabstandet sind. Die drei Rollelemente sind derart angeordnet, dass zumindest ein Teil von Kontaktbereichen zwischen der hochtourigen Welle und den Rollelementen frei von einem einander Überlappen entlang der Drehachse ...

Elektrische Luftpumpe

Surface ventilator for conveying air stream toward e.g. tube, has movable surface moved parallel to fixed locking surface such that medium is conveyed toward tube, and turbulence groove formed in movable surface in direction of tube

The ventilator has valves (3, 3a) provided in a fixed locking surface (1) and a movable surface (2), where forward and rear movements of the movable surface are implemented via a linear friction-poor propulsion device or a crank shaft. The movable surface is moved parallel to the fixed locking surface in forward and backward directions such that gaseous medium is conveyed toward a tube (5). A turbulence groove (6) is formed in the movable surface in a direction of the tube. The movable surface is moved away from the fixed locking surface.

GEKAPSELTER MOTORKOMPRESSOR FUER INSBESONDERE KAELTEERZEUGER

Wasserstoffzirkulationspumpe für ein Brennstoffzellensystemund Brennstoffzellensystem

Eine Wasserstoffzirkulationspumpe hat einen Pumpenkörper, einen Motor, eine Antriebseinrichtung und ein Gehäuse. Das Gehäuse hat im Inneren einen Wasserstoffrezirkulationsdurchgang, der den Pumpenkörper mit einem Brennstoffzellenstapel verbindet, einen Wasserstoffzufuhrdurchgang, durch den hindurch ein Wasserstoff von einer Wasserstoffzufuhrquelle zu dem Brennstoffzellenstapel zugeführt wird, und eine Trennwand, die eine Aufnahmekammer definiert, die die Antriebseinrichtung aufnimmt. Der Wasserstoffzufuhrdurchgang hat einen Zusammenführabschnitt, wo der Wasserstoffzufuhrdurchgang mit dem Wasserstoffrezirkulationsdurchgang zusammengeführt ist. Der Wasserstoffzufuhrdurchgang ist in dem Gehäuse derart angeordnet, dass Wärme an einer stromaufwärtigen Seite des Zusammenführabschnitts durch die Trennwand zwischen der Antriebseinrichtung und dem Wasserstoff in dem Wasserstoffzufuhrdurchgang ausgetauscht wird.

FAHRZEUGINTERNER MOTORGETRIEBENER KOMPRESSOR

Ein fahrzeuginterner motorgetriebener Kompressor beinhaltet eine Kompressionseinheit, einen Elektromotor und eine Wechselrichtervorrichtung. Die Wechselrichtervorrichtung beinhaltet eine Wechselrichterschaltung und einen Rauschminderer. Der Rauschminderer beinhaltet eine Gleichtakt-Drosselspule und einen Glättungskondensator. Die Gleichtakt-Drosselspule beinhaltet ein Gehäuse, einen im Gehäuse untergebrachten schlaufenförmigen Kern, eine erste Wicklung und eine zweite Wicklung, die um das Gehäuse gewickelt sind, und einen schlaufenförmigen Leiter, der den Kern und das Gehäuse bedeckt. Teile des Leiters, die zwischen der ersten Wicklung und der zweiten Wicklung einander gegenüberliegen, sind voneinander beabstandet. Das Gehäuse beinhaltet zwei Vorsprünge, die von einer Außenfläche des Gehäuses herausragen. Der Leiter wird von den beiden Vorsprüngen so gehalten, dass der Leiter von der ersten Wicklung und der zweiten Wicklung beabstandet ist.

Luftkompressor mit doppeltem Pumpsystem

Vorrichtung zum Antreiben eines Verdichters

Die Erfindung betrifft eine Vorrichtung zum Antreiben eines Verdichters eines dampfförmigen Fluids, insbesondere einen Elektromotor. Die Vorrichtung weist einen Rotor und einen Stator (1) auf, welche sich entlang einer gemeinsamen Längsachse (5) erstreckend angeordnet sind. Dabei ist an einer ersten in einer axialen Richtung ausgerichteten Stirnseite des Stators (1) ein Trägerelement (6) anliegend angeordnet, welches mit mindestens einem Aufnahmeelement (7) für ein Steckergehäuse (7b) zur Aufnahme von mindestens einem Steckverbinder als eine zusammenhängende Einheit und einteilige Komponente ausgebildet ist. Das Trägerelement (6) ist in axialer Richtung an einem fest mit dem Stator verbundenen Isolationselement (4) mit einer zylinderförmigen Wandung anliegend angeordnet und weist eine axial ausgerichtete Ringfläche (6a) auf.

ELEKTRISCHER KOMPRESSOR

Ein elektrischer Kompressor (10) weist einen Elektromotor (13), ein Motorsteuergerät (19), das gestaltet ist, um den Elektromotor (13) anzutreiben, und ein Gehäuse (18) auf, in dem das Motorsteuergerät (19) untergebracht ist. Das Motorsteuergerät (19) weist ein Hochspannungssubstrat (41), auf dem ein Schaltelement (Qu1, Qu2, Qv1, Qv2, Qw1, Qw2) und eine Filterschaltung (20) mit einem Kondensator (25) und einer Spule (26) montiert sind, ein Niederspannungssubstrat (51), auf dem eine Steuerungsschaltung (21), die gestaltet ist, um das Schaltelement (Qu1, Qu2, Qv1, Qv2, Qw1, Qw2) zu steuern, montiert ist, und eine Sammelschienenbaugruppe (61) auf, die aus einem Harz hergestellt ist und eine Sammelschiene (67) aufweist, die eine elektrische Verbindung zwischen dem Schaltelement (Qu1, Qu2, Qv1, Qv2, Qw1, Qw2) und der Steuerungsschaltung (21) vorsieht. Das Hochspannungssubstrat (41), das Niederspannungssubstrat (51) und die Sammelschienenbaugruppe (61) sind derart geschichtet, dass die Sammelschienenbaugruppe ...

Hermetisch gekapselte Kaeltemaschine

Luftkompressor für Kraftfahrzeuge

Kompressoreinheit

Kompressoreinheit, welche einen Motor und einen über einen in einem Kurbelgehäuse angeordneten Schubkurbeltrieb angetriebenen Hubkolbenverdichter mit einem in einem mit einem Zylinderkopf verbundenen Zylinder bewegbaren Kolben aufweist, wobei Zylinder, Zylinderkopf, Auslasseinrichtungen und Anschlüsse als einteiliges Bauteil ausgebildet sind.

Hermetisch gekapselte Kältemittelverdichtereinrichtung

Es wird eine hermetisch gekapselte Kältemittelverdichtereinrichtung (1) angegeben, die eine hermetisch dichte Kapsel (2), eine einen elektrischen Motor (8) mit Stator (14) und Rotor (15) sowie einen Verdichter (9) mit Zylinderkopfdeckel (48) aufweisende Einheit (7) und Federn (10-112) aufweist, die über erste Federhalter (49, 50) an der Einheit (7) und über zweite Federhalter (59) an der Kapsel (2) befestigt sind. Man möchte den Aufbau der Federhalterung vereinfachen. Hierzu ist vorgesehen, dass mindestens eines der Elemente Zylinderkopfdeckel (48) und Endplatte (23) des Stators (14) mindestens einen integrierten ersten Federhalter (49, 50) aufweist.

Antriebssystem für Pumpen

Die Erfindung betrifft eine Vorrichtung zum Antrieb von Pumpen. Durch eine geeignete Steuerung der Anlaufsequenz kann das Anlaufdrehmoment reduziert werden. Hierzu ist ein Sollwertgeber vorgesehen, der eine Anlaufsequenz, beginnend mit einem niedrigen Drehmoment, welches unter dem Losbrechmoment liegt und darauffolgend jeweils höhere Drehmomente in wechselnden Richtungen vorgibt. Zudem kann durch zusätzliche mechanische Umsetzung der Rotation in Translation sowie mechanische Energiespeicherung der Anlauf verbessert werden.

REGULATED FLUID PUMP

... 1416244 Reciprocating compressors A J SIPIN 9 Nov 1973 [2 Aug 1973] 52134/73 Heading FIN [Also in Division G3] The voltage applied to the armature of an electric motor, having a constant magnetic field, driving a fluid pump is regulated electrically between limit values to maintain the fluid flowrate at a fixed value in the linear flow range of the pump. As shown, a permanent - magnet field motor 18 drives through an eccentric 44 a piston 33 having a diaphragm seal 38. The flow of air set up by the piston is determined by uni-directional silicone-rubber valves 14, 34 to maintain a controlled flow of air through a sorbent-filled tube 56. The motor 18 is energized from a battery 62 through a regulator 22 so that the applied armature voltage E is maintained constant at a value set on a potentiometer 66. Since the assembly is arranged to have a linear relationship between air-flow and armature voltage the air-flow can be indicated by a scale on the potentiometer, or a voltmeter 68, and integrated ...

Cryocooler with magnetic reciprocating piston

An apparatus for assisting sexual intercourse

... 1,143,503. Apparatus for assisting sexual intercourse. C. C. BARRIO. 15 Feb., 1966 [31 Aug., 1965], No. 6680/66. Headings ASK and A5R [Also in Division F1] An apparatus for assisting sexual intercourse comprises a separating chamber having walls which are flexible and impermeable and shaped to fit between two persons, a flexible pipe for supplying pressure fluid to the chamber and a pressure fluid supply means adapted alternately to supply pressure fluid to the chamber to extend the chamber and subsequently to receive back the fluid from the chamber to reduce the size of the chamber and thereby cause relative motion between the persons. Preferably the separating chamber is in the form of a ring with an orifice, and the flexible tube extends radially outwards in the plane of the ring. The apparatus is illustrated with reference to drawings of which Figs. 1 and 2 are the fluid supply means, Fig. 3 is the separating chamber, and Fig. 4 is a housing for the apparatus. The fluid supply means ...

BRUSH MOUNTING IN MOTOR-OPERATED PUMP OF IN-TANK TYPE

A commutating motor-operated pump of the in-tank type has brushes 4 held against the commutator 3 through a through hole 12a b formed in a housing 9. A brush spring-holder plate 20 is fitted in the housing a for retaining the brush springs 12 urging the brush. An outer cover 10 is fitted on the bracket for covering the housing and the brush spring-holder late. Electrical noise-prevention elements 13 received in bottomed holes 21a b formed in said housing and is electrically connected to the respective brush, power terminals 13a electrically being connected to said respective electrical noise- prevention element. ...

Compressor

Compressor

An electromagnetic reciprocating compressor has a body (1, 2), a piston (10) reciprocating in a cylinder (12) in the body and a piston guide (14) in the form of an insert which is radially located relative to the axis of the cylinder (12) by fitting against a registration surface (25a), the registration surface is on a body part (1) which also provides the internal cylinder surface (12a) of said cylinder. To improve the alignment of the insert (14), the registration surface (25a) and the internal cylinder surface (12a) are formed to their respective final diameters in the same machining operation by reference to a common axis. The piston guide (14) is axially located related to the cylinder (12) by being resiliently clamped between the stator (23) and an end portion (27a) of the body (1, 2) opposed to the stator (23) with a resiliently member (27) interposed between the body end portion (27a) and the piston guide (14). ...

Compressor

An electromagnetic linear compressor has a linearly reciprocating piston (10) biassed in one direction by a helical coil spring. A rotational bearing (40) supports one end of the spring (20a, 20b). To avoid uneven wear due to forces applied by the spring, the spring is replaced by a spring system comprising two helical coil springs (20a, 20b) acting is series to bias the piston (10), and the rotational bearing (40) transmits thrust between the two springs while permitting relative rotation of the two springs about their axis. The compressor also has turbine means (30) for exerting a unidirectional rotational force to rotate the piston (10) about its axis gradually during operation of the compressor. ...

Electromagnetic reciprocating fluid device

MOTOR COMPRESSOR UNIT

Improvements in or relating to methods and apparatus for the manufacture of wound electric condensers

... 786,943. Winding capacitors. BOSCH, GES. R March 29, 1956 [April 2, 1955], No. 9814/56. Class 100(1) [Also in Group XXII] In a method of winding non-metalized and metalized insulating strips to form capacitors the strips are unwound from storage rolls, prior to winding, in a substantially non-corrosive atmosphere maintained at a pressure greater than the surrounding atmosphere. As shown, a capacitor winding machine comprises a wall 11 supported by a base 10 and a casing 12 which with the wall 11 forms a sealed chamber. A hinged airtight cover 13 provides access for the insertion of storage rolls. Dried air is supplied, under pressure, to the casing 11 through a pipe 14. Strips are drawn from the casing through slots 15 by a winding mandrel 16 driven by an electric motor, not shown, secured to the wall 11.

COMPRESSORS

... 1528553 Cooling reciprocating compressors E BECKER 1 Feb 1977 [28 April 1976] 04092/77 Heading F1N A single or multi-cylinder air compressor 3 drivingly coupled to a motor 2 via a belt drive 4 is cooled by a fan wheel 7, the position of the motor.2 being arranged so that the fan wheel 7 is located between the motor and the cylinder(s) 5. An air guiding device 25, preferably including guide fins for directing the air on to the cylinder(s) is provided within a protective cowling 27 for the fan wheel and belt drive. The motor is mounted on a bracket 10 having a plate 12 clamped to a housing 18 of the compressor by clamping shoes 21. Each shoe 21 is fitted over a stud (19) mounted on the housing 18 and held in its clamping position by a nut (22). The studs (19) on either side of the plate 12 together form a guide therefor, whereby the bracket 10 may be slid between the studs during adjustment of the belt tension. An adjustable screw stop 24 on the bracket 10 aids location of the latter in its ...

VARIABLE SPEED DRIVE UNIT FOR COMPRESSOR OF HEAT PUMP

Sealed motor-compressor unit for refrigeration systems

A sealed motor-compressor unit for refrigeration systems in which a direct current motor (16) and the reciprocating compressor (18) are in separate chambers (28, 13) which intercommunicate through an annular filter element (72) of sintered zinc. The drive from the motor is transmitted to the compressor by means of a circular eccentric cam (62) which engages in a semi-circular recess in a shoe (66) which slides on the base of the compressor piston (58). A spring (68) maintains contact between the cam and the shoe. ...

WICKELKOPF

GAS DISCHARGE OPENING FOR A PISTON COMPRESSOR

IMPROVEMENTS FOR A LINEAR MOTOR PRICE INCREASE

VERDICHTERAGGREGAT, BESTEHEND AUS EINEM ANTRIEBSMOTOR UND EINEM VERDICHTER MIT EXZENTRISCH GEFUEHRTEN, FREI BEWEGLICHEN KOLBEN

CLOSED COMPRESSOR

COMPRESSOR OR RESTRICTOR

COMPRESSOR AGGREGATE, CONSISTING OF A DRIVING MOTOR AND A COMPRESSOR WITH ECCENTRICALLY LEADING, FREE MOBILE PISTON

PORTABLE AIR COMPRESSOR

REFRIGERATION COMPRESSOR

Die Erfindung betrifft einen Kältemittelverdichter mit - einem, vorzugsweise hermetisch abdichtbaren, Verdichtergehäuse; - einer elektrischen Antriebseinheit umfassend einen Rotor (4) und einen Stator (3); - einer mit dem Rotor (4) drehfest verbundenen, eine Längsachse (2) aufweisenden Kurbelwelle (1); - einer von der Kurbelwelle (1) antreibbaren Kolben-Zylinder- Einheit; wobei die elektrische Antriebseinheit als Außenläufermotor ausgebildet ist und der Rotor (4) ein sich zumindest abschnittsweise radial zur Längsachse (2) nach außen erstreckendes Trägerelement (12) aufweist und das Trägerelement (12) drehfest an der Kurbelwelle (1) angebunden ist. Um eine erhöhte Förderleistung von Schmiermittel aus einem Schmiermittelsumpf bei vorzugsweise geringer bzw. reduzierter Bauhöhe des Kompressors zu ermöglichen ist erfindungsgemäß vorgesehen, dass auf einer der Kolben-Zylinder-Einheit (5) abgewandten Seite des Trägerelements (12) eine hülsenförmige Schmiermittelaufnahme (8) zur zentrifugischen ...

Hermetisch gekapselter Kältemittelverdichter

Die Erfindung betrifft einen hermetisch gekapselten Kältemittelverdichter (100) mit einem einen Unterteil (11) und einen Deckel (12) aufweisenden Gehäuse (10), wobei der Deckel (12) mit dem Unterteil (11) verbindbar ist, einem das Gehäuse (10) durchsetzenden elektrischen Anschlussstück (30) und einer im Gehäuse (10) angeordneten und mit einer Steuerungseinheit über das Anschlussstück (30) elektrisch verbindbaren Kolbenpumpe (40). Der Deckel (12) des Gehäuses (10) weist eine Durchgangsöffnung (12a) auf, in der das elektrische Anschlussstück (30) angeordnet ist. Das Gehäuse (10) ist so konfiguriert, dass die Kolbenpumpe (40) bei geöffnetem Gehäuse (10) in den Deckel (12) des Gehäuses (10) einsetzbar und mit dem elektrischen Anschlussstück (30) verbindbar ist.

Hermetisch gekapselter Kältemittelverdichter

Die Erfindung betrifft einen hermetisch gekapselten Kältemittelverdichter (100) mit einem einen Unterteil (11) und einen Deckel (12) aufweisenden Gehäuse (10), wobei der Deckel (12) mit dem Unterteil (11) verbindbar ist, einem das Gehäuse (10) durchsetzenden elektrischen Anschlussstück (30) und einer im Gehäuse (10) angeordneten und mit einer Steuerungseinheit über das Anschlussstück (30) elektrisch verbindbaren Kolbenpumpe (40). Der Deckel (12) des Gehäuses (10) weist eine Durchgangsöffnung (12a) auf, in der das elektrische Anschlussstück (30) angeordnet ist. Das Gehäuse (10) ist so konfiguriert, dass die Kolbenpumpe (40) bei geöffnetem Gehäuse (10) in den Deckel (12) des Gehäuses (10) einsetzbar und mit dem elektrischen Anschlussstück (30) verbindbar ist.

WICKELKOPF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

WIСКЕLКОРF

DC voltage air conditioning compressor drive unit

The invention relates to a Direct Current (DC) air conditioning compressor drive unit for use in both buildings and in vehicle installations. Energy savings can be demonstrated in the automotive industry when compared to the current status of known DC air conditioning drive units and in particular those relying on direct or pulley drive. More particularly, when coupled to DC battery and inverter technology for air conditioning purposes within domestic housing, commercial and industrial buildings, it can provide extreme energy savings. Preferably, the purpose of this innovation is to enhance the viability and energy savings opportunities of using DC power in air conditioning if used in conjunction with smart compressor technology.

Pump controller

OF THE INVENTION The present invention provides a technique using current sensing to control the pressure at constant level without the direct sensing of the pressure. This technique will help to reduce dependency solely on switch or sensor and their non linearity and other 5 associated problems such as the non-repetitive behavior, being affected by EMI etc. The technique includes using a pump controller (10) featuring one or more modules (12, 14) configured to respond to one or more input signals containing information about current provided from a pump (30); and configured to provide one or more output signals containing information to control the pump (30) to operate at a substantially constant 10 pressure without the direct sensing of pump pressure. The one or more modules (12, 14) control the operation of the pump (30) based at least partly on a table of characteristics related to voltage and current that is calibrated for each pump (30). V - I char at 30 psi 3540 -- -- -.-- Figure8 ...

Motor and compressor

COMPRESSOR

ELECTROACTIVE POLYMER DEVICES FOR MOVING FLUID

A compressor train with a stirling engine

The system for driving a reciprocating compressor comprises a reciprocating compressor (1) with a crankshaft (31). A Stirling engine (50) is drivingly connected to the crankshaft (31) of the reciprocating compressor (1). A heat source (71), for example a waste heat source, provides heat to the hot end of the Stirling engine. Heat is partly converted into mechanical power to drive the reciprocating compressor (1).

Method of controlling an electric submersible pump

A method of controlling an electric submersible pump, comprising: a) monitoring the pressure at the suction and discharge of the pump; b) calculating the pressure difference between the discharge and suction pressure; and c) controlling the pump to maintain a constant pressure difference between the discharge and suction pressure.

Method for actuating valve and system for actuating valve for multi-suction alternative compressor

The present invention refers to a method for actuating semi-controlled valve that acts in synchronism with the compression cycles of an alternative compressor and to a system for actuating a multi-suction alternative compressor semi-controlled valve. Said method comprises at least a step of detecting at least one compression peak (1) in the course of at least one mechanical cycle (2) of the alternative compressor; and at least a step of switching the functional status of at least an alternative compressor semi-controlled valve (3) based on detecting at least one compression peak (1) in the course of at least one mechanical cycle (2) of the alternative compressor (5).

Magnetizing method, rotor, electric motor, and scroll compressor

This magnetizing method comprises: a step in which a rotor (20) is prepared, said rotor (20) being provided with a rotor iron core (21) that has magnet insertion holes (23) and being provided with permanent magnets (30) that are positioned in the magnet insertion holes (23); a step in which the rotor (20) is positioned so as to face teeth (12) around which a winding (8) is wound; a step in which the rotor (20) is made to rotate a first angle θ1 in a first rotational direction from a rotational position and a current is sent through the winding (8), said rotational position being a position in which the centers of the insertion holes (23) in a circumferential direction of the rotor iron core (21) face middle sections between both ends of the winding (8) in the circumferential direction; and a step in which the rotor (20) is made to rotate a second angle θ2 in a second rotational direction and a current is sent through the winding (8), said second rotational direction being the opposite direction ...

Locomotive air compressor with an electric motor supported by an external bearing

Compressor assembly

COOLING ARRANGEMENT FOR A PORTABLE AIR COMPRESSOR

A portable air compressor assembly includes a tubular frame having side sections and an assembly longitudinal axis. A support plate between the side sections supports a power unit having a longitudinal axis arranged perpendicular to the assembly longitudinal axis. A compressor having a compressor head and longitudinal axis is mounted to the support plate with the compressor longitudinal axis parallel to the power unit longitudinal axis and perpendicular to the assembly longitudinal axis. A fan connected to the power unit generates an air flow. A ducted cover enclosing the fan includes an air passage directing the air flow from the fan to the compressor head. The ducted cover includes inner and outer covers each including a portion of the air passage. An air scoop extends into the outer cover portion of the air passage to redirect the air flow.

COMPRESSOR UNIT, PARTICULARLY FOR REFRIGERATORS

LOCOMOTIVE AIR COMPRESSOR WITH AN ELECTRIC MOTOR SUPPORTED BY AN EXTERNAL BEARING

The present invention provides an externally mounted assembly for supporting a rotatable shaft member driven by an electric motor. The externally mounted assembly comprises a bearing support member disposed on a substantially vertical plane and a bearing member mounted on the bearing support member. Such bearing member is connectable with the rotatable shaft member for supporting such rotatable shaft member thereby reducing extraneous vertical and horizontal movement of such rotatable shaft member while permitting such rotatable shaft member to rotate freely.

SEPARATION OF LUBRICATING OIL FROM REFRIGERANT GAS IN A RECIPROCATING COMPRESSOR

Separation of Lubricating Oil From Refrigerant Gas in a Reciprocating Compressor A hermetically sealed reciprocating motor compressor unit including a sealed shell. Discharge gas from the compressor is passed through the motor via suitable flow passages. The top of the motor and the interior surface of the shell define a chamber therebetween. The rotor functions as a centrifuge for separating the high pressure refrigerant gas from oil entrained therein. A substantially oil free vortex is formed encompassing a sector of the chamber defined by sides bearing 45.degree. relative to the vertical center line of the rotor. A refrigerant gas discharge tube connected to the top of the shell is located at any position which falls within the sector defining the vortex.

Electric compressor controller

An electric compressor controller includes a compressor that compresses refrigerant of an air conditioning system; a motor that drives the compressor; an inverter that selectively control switching elements based on PWM pulse signals to supply drive power to the motor and heats the refrigerant by heat generated due to switching of the switching elements during a heating operation; temperature detectors each detects junction temperature of each of the switching elements; a drive controller that supplies the pulse signals to the inverter to control the inverter; and a slope varying unit that variably controls precipitous degree of rising/falling slope waveforms of the pulse signals based on the junction temperature detected by the temperature detectors. According to the electric compressor controller, efficiency for heating refrigerant is improved, so that its own heating ability is improved.

Compressed Air Device For Allowing The Expeditious Adjustment Of Drive Belts

The present invention provides methods and systems for a device for producing compressed air that allows for the expeditious adjustment of a drive belt that includes a base having a substantially triangular shape with at least a first side having a top portion and a bottom portion, a second side having a top portion and a bottom portion, and a third side having a top portion and a bottom portion. The first side, second side, and third side collectively form a cavity therein. A motor is disposed within the cavity of the base and engaged to the first side of the base. A first compressor is slidingly engaged to the second side of the base and a second compressor is slidingly engaged to the third side of the base.

Compressor

A compressor includes a casing and a motor disposed inside the casing. The motor is welded to the casing at a plurality of weld positions. The motor includes a core, a coil, at least one insulating member and a gap. The core has an annular back yoke portion, a plurality of tooth portions projecting radially inwardly from the back yoke portion and a slot formed between the tooth portions adjacent to each other. The coil is disposed in the slot. The insulating member is disposed in the slot to insulate the coil from the core. The gap is provided between the back yoke portion and the insulating member.

Diaphragm vacuum pump

A diaphragm vacuum pump has an electrically operated drive unit and a vacuum diaphragm, which separates a pump chamber into a drive-side part and a drive-remote part and which can be deflected by means of a movable part of the drive unit. The drive unit is an electromagnetic drive unit and the vacuum diaphragm is deflected in the direction of a linear movement generated electromagnetically in the drive unit. Preferably, a ventilation valve is also actuated the movable part. The vacuum pump is relatively small and compact and operates quietly. The vacuum pump is suitable in particular for “hands-free” applications of breastpumps.

Motor-driven compressor

A motor-driven compressor includes a shell, an electric motor, a first conductor electrically connected to an external power source, a second conductor electrically connected to the electric motor, a connector connecting the first conductor and the second conductor and a connector case. The connector case has a first case member, a second case member, a first and a second seal members interposed between the first and the second case members, a hole through which the first conductor is inserted and a third seal member sealing between the first conductor and the connector case. A first main seal of the first seal member and a second main seal of the second seal member cooperate to form a cylindrical seal portion for sealing the second conductor that is inserted through the cylindrical seal portion when the first and the second seal members are joined.

Rotor of compressor motor

There is provided a rotor of a compressor motor at a low cost in which a balance weight is stably positioned. A rotor includes a rotor laminated steel plate ( 12 ), rotor end plates ( 16, 18 ) arranged on both end surfaces of the rotor laminated steel plate ( 12 ), and balance weights ( 20, 22 ) provided on the outer surfaces of the rotor end plates ( 16, 18 ), respectively. The rotor laminated steel plate ( 12 ) and the rotor end plates ( 16, 18 ) are provided with at least three axial through holes ( 24 ) that are equally spaced apart in the circumferential direction. The rotor laminated steel plate ( 12 ) and the rotor end plates ( 16, 18 ) are fixed by three rivets ( 26 a, 26 b, 26 c ) passing through the axial through holes ( 24 ), respectively. The balance weight ( 20 ) is fixed to the rotor end plate ( 16 ) by the two rivets ( 26 a, 26 b ) of the three rivets. The balance weight ( 22 ) is fixed to the rotor end plate ( 18 ) by the remaining one rivet ( 26 c ), and is positioned by the engagement members ( 28 ).

Air compressor and piston for air compressor

An air compressor that can take in air at a particular pressure at the input and compress the air such that it exits an output at a much greater pressure until a desired pressure is reached in a piston assembly, at which point, the air compressor can shut off automatically by moving a switch. A tank does not need to be part of the compressor assembly, and thus, the air compressor is capable of determining the pressure and shutting off at the desired pressure regardless of the particular tank that is removeably connected to the air compressor. The switch can be moved to an off position by an arm pivotally connected to a carriage. In addition, the air compressor can utilize a piston assembly having a plurality of stationary o-rings for receiving a piston.

Air conditioning apparatus

Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor integrally including a compressor, an electric motor that drives the compressor, and an inverter including a temperature sensor that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller estimates a discharge temperature of the compressor on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter, for the rotational speed of the compressor, and for the motive force of the compressor in a refrigerating cycle.

Linear compressor

The present invention relates to a linear compressor which can perform the natural cooling capacity modulation, even if a capacitor connected to a motor is removed. The linear compressor includes a fixed member having a compression space therein, a movable member linearly reciprocated in the fixed member to compress a refrigerant sucked into the compression space, one or more springs provided to elastically support the movable member in the motion direction of the movable member, a motor connected to the movable member to linearly reciprocate the movable member in the axial direction, and a motor control unit performing the cooling capacity modulation by the reciprocation of the movable member according to a load, by controlling an AC voltage applied to the motor so that a stroke of the movable member can be proportional to the magnitude of the AC voltage applied to the motor.

Reciprocating compressor

Disclosed is a reciprocating compressor. A cylinder in which a piston makes a reciprocal movement is insertedly coupled to a cylinder part of a frame which fixes a stator of a reciprocating motor, and a collision preventing portion is formed in the cylinder to allow a piston connection portion to collide therewith. Thus, although the piston connection portion overstrokes, the piston connection portion prevent collision force from being transferred to the frame having the cylinder part, whereby a laminated state of the stator can be prevented from being distorted to prevent a degradation of efficiency of the motor, and thus, reliability and performance of the compressor can be enhanced.

Hermetic electric compressor

An object is to provide a hermetic electric compressor that can simplify the installation structure of an internal protector and improve the ease-of-assembly thereof. In a hermetic electric compressor having a compressor and an electric motor ( 10 ) built into a sealed housing ( 2 ), the electric motor ( 10 ) includes a stator ( 8 ) to which plastic insulating bobbins ( 30 ) having flanges ( 30 B, 30 C) on an inner and outer circumferences of a plurality of tooth parts of a stator core are fitted and around which a stator winding wire ( 8 A) is wound in concentrated winding around the plastic insulating bobbins ( 30 ), and an internal protector ( 29 ) for electric-motor protection is latched between the inner and outer circumferential flanges ( 30 B, 30 C) of the plastic insulating bobbins ( 30 ) by being urged against the stator winding wire ( 8 A).

Compressor Intake Muffler And Filter

A muffler for a feed air system of a compressor assembly. The muffler can be a product of a blow molding process and used in a method of sound control for a compressor assembly. A method of controlling sound in a compressor assembly can have the step of providing a feed air and the step of providing the muffler an outlet in communication with an inlet of a pump assembly which can compress the feed air fed through the muffler and into the pump assembly. Sound control for a compressor assembly is also accomplished by adapting a feed air system to have sound control of a feed air path by dampening the sound emitted from a pump system through the feed air path.

Tank Dampening Device

A compressor assembly having a compressed gas tank having a tank dampening device in the form of a vibration absorption member. The vibration absorption member can provide a pressure to a portion of the compressed gas tank. A method of controlling sound emitted from a compressor assembly, by using a vibration absorber which exerts a force upon the compressed gas tank. A means for controlling the sound level of a compressed gas tank by using a means for absorbing vibration from the compressed gas tank which exerts a pressure on a portion of the compressed gas tank.

Method Of Reducing Air Compressor Noise

A compressor assembly having a tank seal which seals a tank gap between a portion of a housing of the compressor assembly and a portion of a compressed gas tank and a method for controlling the sound level of a compressor assembly by configuring a tank seal to seal a gap between the housing of a compressor assembly and a compressed gas tank. The sound level of the compressor assembly can be controlled by sealing a tank gap between at least a portion of a compressor assembly housing and at least a portion of a compressed gas tank.

Reactant delivery for engine exhaust gas treatment

A reactant delivery system for engine exhaust gas treatment may include a tank in which a reactant is received, a pumping device, a pressure relief device, and a reactant distribution device. The pumping device may have an inlet disposed within the interior of the tank to receive the reactant, and an outlet through which the reactant is discharged. The pressure relief device may have an inlet in fluid communication with the outlet of the pumping device, a primary outlet to discharge the reactant under pressure to a downstream location, and a bypass outlet through which at least some of the reactant discharged from the pumping device is selectively discharged. And the reactant distribution device may be in fluid communication with the bypass outlet of the pressure relief device and have a plurality of outlets to distribute the reactant to at least two different locations within the tank.

LINEAR COMPRESSOR

A linear compressor according to the present invention can prevent leakage of a magnetic force by changing the construction of a linear motor. As the construction of the linear motor is changed, a mechanical spring constant is set smaller in consideration of a magnetic spring constant, so that the size of springs supporting a piston in the reciprocal linear motion direction can be reduced and components supporting the springs can be removed. Therefore, the linear compressor achieves a small size/a light weight. With the characteristics of the linear motor construction, the linear compressor can suppress a stroke spreading influence and easily expand a compression capacity according to a load. 1. A linear compressor , comprising:a fixed member including a cylinder having a compression space defined therein, an inner stator installed on the outside of the cylinder, and an outer stator forming a pole in an air gap from the inner stator; anda moving member including a piston performing reciprocal linear motion into the compression space of the cylinder and compressing an operating fluid introduced into the compression space and a permanent magnet performing reciprocal linear motion with the piston due to a mutual electromagnetic force in the air gap between the inner stator and the outer stator,wherein the permanent magnet is arranged in a plural number along the direction of performing reciprocal linear motion, and N pole and S pole of each permanent magnet are formed opposite to the inner stator and the outer stator.2. The linear compressor of claim 1 , wherein the plurality of permanent magnets arranged along the direction of performing reciprocal linear motion are arranged such that different poles come in contact with each other.3. The linear compressor of claim 1 , wherein the plurality of permanent magnets arranged along the direction of performing reciprocal linear motion are arranged such that different poles adjoin each other.4. The linear compressor of claim ...

Apparatus and method for controlling a compressor, and refrigerator comprising same

The present invention relates to an apparatus for controlling a compressor, to a method for controlling a compressor and to a refrigerator comprising same. According to certain embodiments of the present invention, a compressor operates selectively in a TRIAC driving mode or in a mode in which commercial power is directly used in accordance with the quality of the electricity of the commercial power. According to certain embodiments of the present invention, the commercial power is directly applied to the compressor within the range of a predetermined voltage or frequency so as to reduce or remove losses caused by the TRIAC driving, and power consumption is reduced to improve energy efficiency.

Oil injection device for variable-speed scroll refrigeration compressor

The oil injection device according to the invention includes an oil pump designed to be rotationally coupled to the electric motor of a compressor and including inlet and outlet ports, an oil injection duct connected to the first outlet port and designed to supply a compression stage of the compressor with oil, and an oil return duct connected to the first outlet port and designed to return the oil into an oil sump of the compressor. The pressure losses in the oil injection duct are primarily singular pressure losses proportional to the square of the oil flow rate passing through the oil injection duct. The pressure losses in the oil return duct are primarily pressure losses due to friction proportional to the oil flow rate passing through the oil return duct.

System and method for compressor motor protection

A system includes a refrigerant compressor including an electric motor, a current sensor that measures current flow to the electric motor, a switching device configured to close and open to allow and prevent current flow to the electric motor, respectively, a maximum continuous current (MCC) device that includes a resistance corresponding to a maximum continuous current for the electric motor, and a motor protection module. The motor protection module communicates with the MCC device, the current sensor, and the switching device and determines a first MCC value for the electric motor as a function of the resistance of the MCC device. The motor protection module also selectively sets a predetermined MCC to the first MCC and controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC.

System for controlling a resonant linear compressor piston, method for controlling a resonant linear compressor piston, and resonant linear compressor

A system and a control method for the piston of a resonant linear compressor ( 100 ), especially designed for operating at their maximum efficiency, such a system being capable of actuating said compressor without the use of sensors for measuring mechanical magnitudes or variables. A method of controlling the piston of a resonant linear compressor, the steps of which enable one to estimate the velocity and the displacement of said piston, in order to control the compressor motor efficiently. A resonant linear compressor ( 100 ) provided with a control system as proposed.

Apparatus and method for controlling a compressor

An apparatus and method for controlling a compressor are provided. An input voltage of a commercial power source, a motor voltage of a compressor motor, and a motor current of the compressor motor are detected, based on which voltage values of a capacitor and voltage values of a triac may be calculated. Thus, an additional operational amplifier or a sensor to measure a capacitor voltage is not required, reducing costs.

APPARATUS FOR CONTROLLING COMPRESSOR AND REFRIGERATOR HAVING THE SAME

A compressor control apparatus, and a refrigerator including the same are provided. Operation of two compressors may be controlled using one inverter, thereby reducing a number of components, increasing compressor capacity, and enhancing operation efficiency of the system. Commonly used switching elements may be switched at an operating frequency, allowing the simultaneous operation of two compressors, reducing switching losses, and improving the efficiency and stability of the system. 1. A compressor control apparatus , comprising:a single inverter including first, second and third pairs of switching elements, wherein the first pair of switching elements is commonly connected to a first compressor and a second compressor, and wherein the three pairs of switching elements are switched in response to a plurality of drive signals respectively corresponding to the three pairs of switching elements; anda controller configured to generate an inverter control signal including the plurality of drive signals based on a load state of the first and second compressors, and to output the inverter control signal to the single inverter, wherein a frequency of a first drive signal of the plurality of drive signals corresponding to the first pair of switching elements is lower than those of drive signals corresponding to the second and third pairs of switching elements.2. The compressor control apparatus of claim 1 , wherein the first drive signal has an operating frequency.3. The compressor control apparatus of claim 2 , further comprising:a converter configured to rectify commercial alternating current power to direct current power;a smoothing unit configured to smoothen and store the rectified direct current power; anda driver configured to receive the inverter control signal and output the plurality of drive signals to the single inverter.4. The compressor control apparatus of claim 3 , wherein the controller is configured such that the drive signals corresponding to the second ...

MOTOR-DRIVEN COMPRESSOR

A motor-driven compressor includes a connector-receiving portion provided on the outer surface of a housing. A wiring connection portion is provided in the connector-receiving portion and supplies electricity from an external power source to a motor drive circuit. The wiring connection portion includes a first terminal, a second terminal, and a metal plate for connecting the first and the second terminals to each other. The first and the second terminals have a first end-connection portion and a second end-connection portion, respectively. The second end-connection portion of the first terminal is electrically connected to the external power source, and the second end-connection portion of the second terminal is electrically connected to the motor drive circuit. 1. A motor-driven compressor , comprising:a housing;a compression portion, an electric motor, and a motor drive circuit, which are accommodated in the housing;a connector-receiving portion provided on an outer surface of the housing; anda wiring connection portion provided in the connector-receiving portion, the wiring connection portion being adapted for supplying electricity from an external power source to the motor drive circuit, a first terminal having a first end-connection portion at an end thereof and a second end-connection portion at another end thereof, the second end-connection portion being electrically connected to the external power source,', 'a second terminal having a first end-connection portion at an end thereof and a second end-connection portion at another end thereof, the second end-connection portion being electrically connected to the motor drive circuit, and', 'a metal plate having opposite ends, which are connected to the first end-connection portion of the first terminal and the first end-connection portion of the second terminal, respectively, to connect the first terminal and the second terminal to each other., 'wherein the wiring connection portion includes'}2. The motor-driven ...

MOTOR-DRIVEN COMPRESSOR

An object is to provide a motor-driven compressor capable of reducing cost required when a failure occurs in part of components configuring an inverter device. A power substrate assembly is removably fixed to a housing body in an inverter accommodation chamber , and a control substrate assembly and a filter circuit assembly are removably fixed to a cover . Therefore, when the cover is removed from the housing body , the power substrate assembly , the control substrate assembly , and the filter circuit assembly can be independently removed from the housing body or the cover , and new power substrate assembly , control substrate assembly , and filter circuit assembly can be independently mounted on the housing body or the cover 1. A motor-driven compressor comprising:a housing body accommodating a compression mechanism unit and an electric motor that drives the compression mechanism unit;an inverter device converting direct-current power to polyphase alternating current power for supply to the electric motor and controlling a number of revolutions of the electric motor;an inverter accommodation chamber provided to the housing body as having an opening, the inverter accommodation chamber accommodating the inverter device; anda cover blocking the opening and removably provided to the housing body, whereinthe inverter device is configured ofa power unit converting direct-current power to three-phase alternating current power for application to the electric motor,a control unit controlling alternating current power to be applied to the electric motor, anda filter unit including at least one of a capacitor and a coil and suppressing noise of the inverter device,at least one of the power unit, the control unit, and the filter unit is removably fixed to the housing body in the inverter accommodation chamber, andat least another one of the power unit, the control unit, and the filter unit is removably fixed to the cover.2. The motor-driven compressor according to claim 1 , ...

FORCE-EQUALIZATION STATIONARY-COIL ACTUATOR FOR FLUID MOVERS

A fluid mover includes a first dynamic armature attached to a flexible member and a second dynamic armature attached to a second flexible member. The fluid mover also includes a housing and first and second flexible members being attached to the housing so as to form a fluid chamber volume bounded by the housing and first and second flexible members. A stationary current carrying coil positioned between first and second armatures. The current carried by the coil generates a magnetic force acting on the armatures and wherein coil and armatures are positioned and configured so as to ensure that the instantaneous magnetic force experienced by the two armatures will always be identical regardless of the relative positions of the armatures and regardless of the time varying properties of the current. 1. A fluid mover comprising:a first dynamic armature attached to a flexible member;a second dynamic armature attached to a second flexible member;a fluid mover housing;first and second flexible members being attached to the housing so as to form a fluid chamber volume bounded by the housing and first and second flexible members;a stationary current carrying coil positioned between first and second armatures;wherein the current carried by the coil generates a magnetic force acting on the armatures andwherein coil and armatures are positioned and configured so as to ensure that the instantaneous magnetic force experienced by the two armatures will always be identical regardless of the relative positions of the armatures and regardless of the time varying properties of the current.2. The fluid mover actuator of wherein:a cyclic current waveform having a frequency f is delivered to the coil so as to cause the first and second flexible members to oscillate in opposition to each other at frequency f, thereby imparting energy to the fluid within the fluid chamber.3. The fluid mover actuator of claim 2 , wherein said fluid chamber comprises the fluid chamber of a liquid pump.4. The ...

COMPRESSOR AND VACUUM MACHINE

A compressor includes: a cylinder; a crankcase; a piston arranged within the cylinder and the crankcase; and an outer rotor type motor causing the piston to reciprocate, wherein the outer rotor type motor comprises: a stator; a coil wound around the stator; a rotational shaft; a yoke connected with the rotational shaft; and a permanent magnet secured to the yoke, and the yoke is formed with an air hole. 1. A compressor comprising:a cylinder;a crankcase;a piston arranged within the cylinder and the crankcase; andan outer rotor type motor causing the piston to reciprocate,wherein a stator;', 'a coil wound around the stator;', 'a rotational shaft;', 'a yoke connected with the rotational shaft; and', 'a permanent magnet secured to the yoke, and the yoke is formed with an air hole., 'the outer rotor type motor comprises2. The compressor of claim 1 , wherein the yoke is formed with a guide portion standing up from an edge of the air hole and assisting air in flowing through the air hole.3. The compressor of claim 2 , wherein the guide portion protrudes toward an opposite side of the stator.4. The compressor of claim 2 , wherein the guide portion protrudes toward the stator.5. The compressor of claim 1 , wherein the yoke is secured to an inside fan facing the yoke and assisting air in flowing through the air hole.6. The compressor of claim 1 , wherein the yoke is secured to an outside fan facing at least a part of the cylinder and arranged radially outward of the yoke.7. The compressor of claim 1 , whereinthe stator is supported by and fitted with a fitting portion formed in the crankcase and is located between the yoke and the crankcase, andthe fitting portion is formed with a cutout portion permitting air to flow between the yoke and the crankcase.8. A vacuum machine comprising:a cylinder;a crankcase;a piston arranged within the cylinder and the crankcase; andan outer rotor type motor causing the piston to reciprocate,wherein a stator;', 'a coil wound around the stator ...

Air Compressor With Shut-Off Mechanism

A compressor system is disclosed, comprising a first pump driven by a D/C motor, a second pump driven by an A/C motor, and a switch which allows a user to manually selectively engage of one of the D/C motor or A/C motor, including a gauge having a user settable shut-off mechanism which interrupts power to at least one of D/C or A/C motors. Also disclosed is a gauge configured to display system pressure independent of the user settable shut-off mechanism. A gauge having a rotatable bezel with a needle stop comprising a first needle rotatably coupled to a gauge shaft, and a second needle fixable coupled to the gauge shaft, and a spring disposed between the first and second needles, the spring configured to bias the first needle into the second needle so changes in pressure causes rotation of both is also disclosed.

Electric compressor

An electric compressor includes: an electric motor; a compression mechanism driven by the electric motor; a housing accommodating the electric motor and the compression mechanism; an accommodation part provided on a sidewall of the housing and accommodating a drive circuit for driving the electric motor; a lid contacting the accommodation part and fastened to the accommodation part by a fastening portion; a sealing member sandwiched between the accommodation part and the lid so as to seal between them. The accommodation part has a wall standing from the sidewall of the housing, and a step is provided on a standing end surface of the wall orthogonal to a standing direction of the wall, at a midway position from an inside toward an outside of the accommodation part.

Hermetic reciprocating compressor

A compressor having a simplified structure includes a rotation shaft having a spiral groove formed in an outer circumferential surface of the rotation shaft, and a cap member that accommodates a lower portion of the rotation shaft so that the rotation shaft can rotate in the cap member. The cap member may be fixed to one of a stator and a frame such that the cap member does not rotate together with the rotation shaft. Through the simplified structure, oil stored in a sealing case can ascend, and noise caused by rotation of the rotation shaft can be reduced.

Double acting refrigeration compressor

The refrigeration compressor is a double-acting refrigeration compressor, comprising a piston which is freely guided on two cylinder sections that are opposite each other and that cannot be moved relative to each other, and which has a flow channel that extends internally through the piston, wherein each cylinder section and the piston have at least one check valve along the flow channel, wherein the check valves are arranged in such a way that the flow directions thereof are oriented in the same direction.

Zero emissions pneumatic-electric engine

A reciprocating engine has several piston assemblies fitted with embedded magnets in positions that can be alternately repelled and attracted by electromagnetic coils within each of the piston cylinders. The magnetic piston assemblies are connected by rods to a crankshaft with a flywheel. The electromagnetic coils are vented to allow air intake and exhaust to flow through to the piston chambers. Valves and valve timing are controlled relative to the crankshaft rotation such that compressed air can be generated and stored in tanks. The compressed air is used to power air motors to turn electric generators for on-board battery charging. The reciprocating electric engine is configured to idle at a speed that overcomes friction.

Motor starter circuit, particularly for compressors of refrigerators

A motor starter circuit particularly for compressors of refrigerators, comprising a starter device ( 1 ), adapted to be connected to a starter winding ( 3 ) and to a steady-state winding ( 2 ) of an asynchronous motor, the windings ( 2, 3 ) being in turn connected to a power supply line ( 4, 5 ), a capacitor ( 6 ) being connected in parallel to the starter device ( 1 ), and further comprising a heat-sensitive element ( 7 ), which is adapted to be connected between the starter device ( 1 ) and the capacitor ( 6 ) and the starter winding ( 3 ).

Compressor and vacuum machine

A compressor includes: a motor; a piston reciprocating by the motor; a crankcase comprising a wall portion formed with a communication hole, and the crankcase housing the piston; a cylinder body secured to an inner surface of the wall portion, the cylinder body and the wall portion defining a chamber, and reciprocation of the piston increasing or decreasing a capacity of the chamber; and a cylinder head secured to an outer surface of the wall portion, and the cylinder head and the wall portion defining space communicated with the chamber through the communication hole.

System and method for controlling pump

Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

AIR SUSPENSION SYSTEM AND CAMERA CLEANING SYSTEM

A highly reliable and highly efficient air suspension system for a vehicle is provided by improving the trackability of stroke control with respect to pressure fluctuations applied to a linear compressor, suppressing stroke increase due to pressure drop, preventing piston collision, and increasing a flow rate by reducing dead volume. To realize this, the air suspension system includes an air suspension that supplies and discharges compressed air to adjust a length, a compressor body in which a piston reciprocates in a cylinder to compress air, a linear motor that reciprocates the piston, a tank that is connected to the air suspension or the compressor body and stores compressed air, a solenoid valve that opens and closes the air suspension or the tank, and an inverter that changes power supplied to the linear motor according to an open and closed state of the solenoid valve to perform position control of the piston. 1. An air suspension system comprising:an air suspension that supplies and discharges compressed air to adjust a length;a compressor body in which a piston reciprocates in a cylinder to compress air;a linear motor that reciprocates the piston;a tank that is connected to the air suspension or the compressor body and stores compressed air;a solenoid valve that opens and closes the air suspension or the tank; andan inverter that changes power supplied to the linear motor according to an open and closed state of the solenoid valve to perform position control of the piston.2. An air suspension system comprising:an air suspension that supplies and discharges compressed air to adjust a length;a compressor body in which a piston reciprocates in a cylinder to compress air;a pressure sensor that detects pressure information of the compressor body;a linear motor that reciprocates the piston;a tank that is connected to the air suspension or the compressor body and stores compressed air;a solenoid valve that opens and closes the air suspension or the tank; andan ...

Compressor Arrangement for Operating a Compressed Air Supply Facility, Compressed Air Supply Facility and Compressed Air Supply System, and Vehicle with Such a Compressed Air Supply Facility

The invention relates to a compressor arrangement for operating a compressed air supply facility of a vehicle, having a compressor () having an electric motor (), constructed as an electronically commutated, brushless DC motor with a control circuit comprising a power electronics unit, and a pneumatic compressor (), wherein the electric motor () is constructed in the form of an external rotor motor. The invention further relates to a compressed air supply facility having such a compressor arrangement, to a vehicle having a pneumatic system, particularly an air spring system and such a compressed air supply facility, and to a method for operating a compressed air supply facility on a vehicle having such a compressor arrangement,? 2. The compressor arrangement as claimed in claim 1 , characterized in that the compressor element is constructed as a single-cylinder claim 1 , two-cylinder or multi-cylinder compressor element.4. The compressor arrangement as claimed in claim 3 , characterized in that a crankpin formed eccentrically with respect to the motor axis (MA) claim 3 , which forms the crankshaft claim 3 , adjoins the drive shaft on the motor output side.5. The compressor arrangement as claimed in one of to claim 3 , characterized in that the electronic control circuit furthermore has:a first control module, which is designed to store a measure of an energy storage capacity for a rotational energy of the rotor, being designed, in particular, to monitor and or perform open-loop or closed-loop control of an angular speed of the rotor.6. The compressor arrangement as claimed in one of to claim 3 , characterized in that the electronic control circuit furthermore has:a second control module, which is designed to monitor a speed of the rotor, in particular to perform open-loop or closed-loop control of a speed of the rotor, in particular the electric motor being connected to a speed controller, which is designed to set the operating voltage at the motor and/or the rotary ...

Startup Control Systems And Methods To Reduce Flooded Startup Conditions

A refrigeration system includes a startup mode control module that receives an off time of a compressor of the refrigeration system and an ambient temperature, determines whether the off time and the ambient temperature indicate that the compressor is in a flooded condition, and selects, based on the determination, between a normal startup mode and a flooded startup mode. A compressor control module operates the compressor in the normal startup mode in response to the startup mode control module selecting the normal startup mode, in the flooded startup mode in response to the startup mode control module selecting the flooded startup mode, and transitions from the flooded startup mode to the normal startup mode after a predetermined period associated with operating in the flooded startup mode. The compressor is operated at a first speed in the normal startup mode and at a second speed in the flooded startup mode.

COMPRESSOR SYSTEM FOR A RAIL VEHICLE AND METHOD FOR OPERATING THE COMPRESSOR SYSTEM WITH SAFE EMERGENCY OPERATION

A rail vehicle compressor system and method for controlling the same use a compressor driven by an electrical machine via a drive shaft, to produce compressed air for at least one compressed air tank, wherein the electrical machine can be activated at least indirectly via a control device for operating the electrical machine at at least one nominal speed between a maximum speed and a minimum speed, wherein at least one pressure sensor determines the pressure for the control device and is disposed in a compressed-air-carrying line downstream of the compressor. A final control element continuously influences the speed of the electrical machine and can be activated via the control device, and wherein a pressure switch for monitoring the pressure in the at least one compressed air tank and for influencing at least the speed of the electrical machine is disposed in the compressed-air-carrying line downstream of the compressor. 1. A compressor system for a rail vehicle , the compressor system comprising:at least on compressed-air vessel;an electric machine;a drive shaft;a compressor which is driven by the electric machine via the drive shaft and which generates compressed air for the at least one compressed-air vessel;a regulation device which at least indirectly controls the electric machine for operation of the electric machine at at least a rated rotational speed between a maximum rotational speed and a minimum rotational speed;a compressed air-conducting line arranged downstream of the compressor and including at least one pressure sensor for determining the pressure for the regulation device;an electric supply; andan actuator arranged between the electrical supply and the electric machine, wherein the actuator continuously manipulates the rotational speed of the electric machine and is controlled by the regulation device; anda pressure switch arranged in the compressed air-conducting line downstream of the compressor for monitoring pressure in the at least one ...

Linear compressor

A linear compressor is provided. The linear compressor may include a shell including a refrigerant inlet, a cylinder provided within the shell, a piston that reciprocates within the cylinder, and a suction muffler provided movable together with the piston. The suction muffler may include a muffler main body that defines a refrigerant passage, a main body insertion portion press-fitted into the muffler main body, and a piston insertion portion press-fitted into the muffler main body to extend into the piston. The piston insertion portion may correspond to the main body insertion portion in configuration.

LINEAR COMPRESSOR

A linear compressor is provided that may include a shell including a refrigerant inlet, a cylinder provided within the shell, a piston reciprocated within the cylinder, the piston having a flow space in which a refrigerant may flow, a motor assembly that provides a drive force, the motor assembly including a permanent magnet, a flange that extends from an end of the piston in a radial direction, the flange having an opening that communicates with the flow space of the piston and a coupling hole defined outside of the opening, a support coupled to the coupling surface of the flange to support a plurality of springs, and at least one reinforcing rib that protrudes from the coupling surface to guide deformation of the flange while the flange and the support are coupled to each other. 1. A linear compressor , comprising:a shell comprising a refrigerant inlet;a cylinder provided within the shell;a piston reciprocated within the cylinder;a motor assembly that provides a drive force to the piston, the motor assembly comprising a permanent magnet;a flange that extends from an end of the piston in a radial direction, the flange having a coupling surface;a supporter coupled to the coupling surface of the flange to support a plurality of springs; andat least one reinforcing rib that protrudes from the coupling surface.2. The linear compressor according to claim 1 , wherein the at least one reinforcing rib is interposed between the coupling surface of the flange and the supporter.3. The linear compressor according to claim 1 , wherein the at least one reinforcing rib is disposed at a position to guide deformation of the flange in a first direction when the flange and the supporter are coupled to each other.4. The linear compressor according to claim 1 , wherein the at least one reinforcing rib comprises a plurality of reinforcing ribs.5. The linear compressor according to claim 4 , further comprising an opening defined in the coupling surface to communicate with a flow space of ...

LINEAR COMPRESSOR

A linear compressor is provided that may include a shell including a refrigerant inlet, an outer stator provided in the shell and including a coil, an inner stator disposed to be spaced apart from the outer stator, a permanent magnet disposed to be movable between the outer stator and the inner stator, a cylinder including a compression space, in which a refrigerant sucked in through refrigerant inlet may be compressed, a piston coupled to the permanent magnet so as to be reciprocated in the cylinder, a first surface area provided on the piston and having a first hardness value, and a second surface area provided on the cylinder and having a second hardness value, such that a difference value between the first and second hardness values is more than a preset value. 1. A linear compressor , comprising:a shell comprising a refrigerant inlet;an outer stator provided in the shell and comprising a coil;an inner stator disposed to be spaced apart from the outer stator;a permanent magnet disposed movable between the outer stator and the inner stator;a cylinder comprising a compression space in which a refrigerant sucked in through the refrigerant inlet is compressed;a piston coupled to the permanent magnet to be reciprocated in the cylinder;a first surface area provided on the piston, the first surface area having a first hardness value; anda second surface area provided on the cylinder, the second surface area having a second hardness value, so that a difference in value between the first and second hardness values is more than a predetermined value.2. The linear compressor according to claim 1 , wherein the predetermined value is at least approximately 150Hv or more based on Vickers hardness.3. The linear compressor according to claim 1 , wherein the predetermined value is determined so that an abrasion amount generated at the piston or the cylinder claim 1 , while the piston is repeatedly reciprocated for a predetermined period of time claim 1 , is approximately 3 μm or ...

LINEAR COMPRESSOR

A linear compressor is provided that may include a shell provided with a refrigerant inlet; a cylinder provided inside of the shell to form a compression space; a piston that reciprocates inside of the cylinder to compress a refrigerant in the compression space; and a motor assembly that provides a drive force to the piston and provided with a permanent magnet. The piston may include a piston body having a cylindrical outer circumferential surface and a surface-treated area, which may be processed with a material having a predetermined hardness value, and a valve support provided at an end of the piston body and having a suctioning hole be in communication with the compression space. The valve support may form a first non-surface-treated area, which is not surface-treated. 1. A linear compressor , comprising:a shell provided with a refrigerant inlet;a cylinder provided inside of the shell to form a compression space;a piston that reciprocates inside the cylinder to compress a refrigerant in the compression space; and a piston body having a cylindrical outer circumferential surface including a first surface-treated area comprising a material having a predetermined hardness value; and', 'a valve support provided at a first end of the piston body and having a suction hole in communication with the compression space, the valve support having a first non-surface-treated area., 'a motor assembly that provides a drive force to the piston and provided with a permanent magnet, wherein the piston comprises2. The linear compressor of claim 1 , wherein the valve support includes a surface that faces the compression space claim 1 , and the first non-surface-treated area is formed on the surface.3. The linear compressor of claim 1 , wherein the first non-surface-treated area comprises a nonmagnetic material that delivers heat claim 1 , during the compression to the piston body.4. The linear compressor of claim 1 , further comprising a flange coupled to a second end of the piston ...

Linear compressor

A linear compressor is provided. The linear compressor may include a shell having a refrigerant inlet, a cylinder provided inside the shell, a piston that reciprocates inside the cylinder to compress a refrigerant, a motor assembly that provides a drive force to the piston, and a magnet assembly that delivers the drive force to the piston. The magnet assembly may include a magnet frame having a cylindrical shape. A permanent magnet may be installed in or on the magnet frame. A coupling plate may be coupled to a side of the magnet frame and may include a flange coupled to an end portion of the permanent magnet.

LINEAR COMPRESSOR

A linear compressor is provided. The linear compressor may include a shell having a refrigerant inlet, a cylinder arranged in the shell, a piston that reciprocates in the cylinder, a motor assembly that provides a drive force to the piston and having a permanent magnet, and a frame arranged on or at a side of the motor assembly. The cylinder may include a first outer circumference with which an inner stator of the motor assembly may be combined, and a second outer circumference that extends from the first outer circumference and forcibly press-fit into the frame. 1. A linear compressor , comprising:a shell having an inlet;a cylinder provided within the shell;a piston that reciprocates in the cylinder;a motor assembly that provides a drive force to the piston and having a permanent magnet; and a first outer circumference with which an inner stator of the motor assembly is combined; and', 'a second outer circumference that extends from the first outer circumference and which is forcibly press-fit into the frame., 'a frame arranged on a first side of the motor assembly, wherein the cylinder comprises2. The linear compressor according to claim 1 , wherein the frame comprises:a frame body having an insertion portion into which the cylinder is inserted; anda press-fit portion into which the second outer circumference of the cylinder is forcibly press-fit.3. The linear compressor according to claim 2 , wherein a slope is formed between the frame body and the press-fit portion claim 2 , and wherein an inner diameter of the slope decreases as it extends from the frame body to the press-fit portion.4. The linear compressor according to claim 3 , wherein the frame further comprises a hook at an inner circumferential surface of the slope claim 3 , the hook being configured to be hooked on a protrusion of the cylinder.5. The linear compressor according to claim 4 , wherein a space is formed between the hook and the second outer circumference.6. The linear compressor according to ...

LINEAR COMPRESSOR

A linear compressor is provided. The linear compressor may include a shell having a refrigerant inlet, a cylinder provided within the shell, a piston that reciprocates within the cylinder to compress a refrigerant, a motor assembly that provides a drive force to the piston, a support provided for the magnet assembly, to support an end of a permanent magnet, and a frame engaged with the cylinder to support the motor assembly, and that includes a contact to absorb impact when the piston collides against the support. 1. A linear compressor , comprising:a shell having a refrigerant inlet;a cylinder provided within the shell;a piston that reciprocates within the cylinder to compress a refrigerant;a motor assembly that provides a drive force to the piston;a magnet assembly that delivers the drive force exerted by the motor assembly to the piston and that comprises a permanent magnet;a support provided for the magnet assembly, to support an end of the permanent magnet; anda frame engaged with the cylinder to support the motor assembly, wherein the frame comprises a contact to absorb impact when the frame collides with the support.2. The linear compressor according to claim 1 , wherein claim 1 , when the piston is at a first position during a reciprocating motion thereof claim 1 , the support is arranged at a first distance away from the contact.3. The linear compressor according to claim 2 , wherein the first position is a bottom dead center (BDC) position of the piston claim 2 , and at the BDC position of the piston claim 2 , the refrigerant is drawn in though the inlet to be introduced into the cylinder.4. The linear compressor according to claim 2 , wherein claim 2 , when the piston is at a second position during the reciprocating motion thereof claim 2 , the support contacts or collides with the contact.5. The linear compressor according to claim 4 , wherein the second position is a top dead center (TDC) position of the piston claim 4 , and at the TDC position of the ...

METHOD FOR ACTUATING VALVE AND SYSTEM FOR ACTUATING VALVE FOR MULTI-SUCTION ALTERNATIVE COMPRESSOR

The present invention refers to a method for actuating semi-commanded valve that acts in synchronism with the compression cycles of an alternative compressor and to a system for actuating a multi-suction alternative compressor semi-commanded valve. Said method comprises at least a step of detecting at least one compression peak () in the course of at least one mechanical cycle () of the alternative compressor; and at least a step of switching the functional status of at least an alternative compressor semi-commanded valve () based on detecting at least one compression peak () in the course of at least one mechanical cycle () of the alternative compressor (). 1. A method for actuating a semi-commanded valve for alternative compressors , the method comprising:detecting at least one compression peak during at least one mechanical cycle of an alternative compressor; andswitching a functional status of the semi-commanded valve based on the detection of the at least one compression peak,wherein the at least one compression peak is detected by measuring a peak of at least one parameter of the alternative compressor.2. The method according to claim 1 , wherein the detection of the at least one compression peak includes measuring the peak of at least one electric parameter of an electric motor of the alternative compressor.3. The method according to claim 2 , wherein the electric parameter comprises the electric current of the electric motor of the alternative compressor.4. The method according to claim 3 , wherein the compression peak is equivalent to a positive peak of the electric current of the electric motor of the alternative compressor.5. The method according to claim 3 , wherein the compression peak is equivalent to at least one out-of-phase parameter relative to a positive peak of the electric current of the electric motor of the alternative compressor.6. The method according to claim 1 , wherein the detection of the at least one compression peak includes measuring ...

COMPRESSOR AND METHOD FOR ASSEMBLING A COMPRESSOR

A compressor and a method for assembling a compressor are provided. The compressor may include a compressor casing coupled to each of a suction inlet, into which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a compressor body mounted inside the compressor casing to compress the refrigerant suctioned in through the suction inlet, and then discharge the refrigerant through the discharge outlet, a noise reducing member disposed between the compressor body and the compressor casing, and at least one fixing member mounted inside the compressor casing to fix the noise reducing member to an inner wall of the compressor casing. 1. A compressor , comprising:a compressor casing coupled to each of a suction inlet, into which a refrigerant is introduced, and a discharge outlet, through which the refrigerant is discharged;a compressor body mounted inside the compressor casing to compress the refrigerant suctioned in through the suction inlet, and thereafter discharge the refrigerant through the discharge outlet;a noise reducing member disposed between the compressor body and the compressor casing; andat least one fixing member mounted inside the compressor casing to fix the noise reducing member to an inner wall of the compressor casing.2. The compressor according to claim 1 , wherein the at least one fixing member comprises a plurality of fixing members claim 1 , and wherein both ends of the noise reducing member are inserted into the plurality of fixing members claim 1 , respectively claim 1 , to be fixed to the inner wall of the compressor casing.3. The compressor according to claim 2 , wherein each of the plurality of fixing members comprises:a fixing portion fixed to the inner wall of the compressor casing, the fixing portion having a ring shape; anda protrusion that extends from the fixing portion in a direction substantially perpendicular to a radial direction of the fixing portion.4. The compressor according to ...

MULTISTAGE COMPRESSOR

A multistage compressor is disclosed that may include a wobbling member operationally coupled with an external power source. The external power source may drive a nutating motion of the wobbling member. The multistage compressor may further include a plurality of flexible chambers connected to the wobbling member, each flexible chamber including a respective intake passage and a respective discharge passage. The wobbling member may sequentially press down and pull up the plurality of flexible chambers. The multistage compressor may further include a one-way valve in each respective intake passage and gas may be drawn into each flexible chamber through the respective one-way valve of each flexible chamber as the wobbling member pulls up each flexible chamber. The gas may then be compressed to a higher pressure as the wobbling member presses down each flexible chamber and compressed gas may be discharged through the respective discharge passage of each flexible chamber. 1. A multistage compressor , comprising:a wobbling member operationally coupled with an external power source configured to drive a nutating motion of the wobbling member; anda plurality of flexible chambers connected to the wobbling member, wherein each flexible chamber of the plurality of flexible chambers including a respective intake passage and a respective discharge passage, wherein each respective intake passage containing a respective one-way valve, and responsive to the wobbling member pulling up each flexible chamber, gas is drawn into each flexible chamber through the respective one-way valve of each flexible chamber,', 'responsive to the wobbling member pressing down each flexible chamber, the drawn gas is compressed to a higher pressure and discharged through the respective discharge passage of each flexible chamber., 'wherein the wobbling member is configured to sequentially press down and pull up the plurality of flexible chambers, wherein2. The multistage compressor according to claim 1 ...

Motor System and Compressor Equipped Therewith

To provide a motor system that can control the position of a control object in multiple directions while suppressing the number of required switching elements. A motor system includes: a power conversion device including first, second, and third up-down arms each including two switching elements connected in series; a control object; and a first load including a magnetic pole tooth facing the control object, and a winding wound around the magnetic pole tooth. The motor system includes a second load including two magnetic pole teeth facing each other in a second direction with the control object therebetween, and a winding wound around one or both of the magnetic pole teeth. The power conversion device provides a force with respect to a first direction to the control object through an output to the first load, and provides a force with respect to the second direction to the control object through an output to the second load. 1. A motor system comprising:a power conversion device including first, second, and third up-down arms each including two switching elements connected in series;a control object; anda first load including a magnetic pole tooth facing the control object, and a winding wound around the magnetic pole tooth, whereinthe motor system includes a second load including two magnetic pole teeth facing each other in a second direction with the control object therebetween, and a winding wound around one or both of the magnetic pole teeth, and provides a force with respect to a first direction to the control object through an output to the first load, and', 'provides a force with respect to the second direction to the control object through an output to the second load., 'the power conversion device'}2. The motor system according to claim 1 , wherein connects the first up-down arm and the second up-down arm to the first load,', 'connects the second up-down arm and the third up-down arm to the second load,', 'outputs a sinusoidal AC signal or rectangular-wave ...

RECIPROCATING COMPRESSOR

Disclosed is a linear compressor. The linear compressor according to the spirit of the present invention includes a cylinder forming a compression space for refrigerant and a discharge unit forming a discharge space for refrigerant into which refrigerant discharged from the compression space flows. The discharge unit includes a discharge cover having an inner space formed therein and a discharge plenum placed in the inner space. In this case, the discharge plenum includes a plenum flange extending radially, a plenum seating part, a plenum body, and a plenum extension part which extend from a radially inner side end of the plenum flange, and a plenum guide surface extending from a radially outer side end of the plenum flange toward the inner space. 1. A linear compressor comprising:a cylinder forming a compression space for refrigerant; anda discharge unit that defines a discharge space into which the refrigerant that is discharged from the compression space is configured to flow, a discharge cover that has an inner space formed therein; and', 'a discharge plenum that is disposed in the inner space of the discharge cover,, 'wherein the discharge unit comprises a plenum flange that extends radially;', 'a plenum seating part, a plenum body, and a plenum extension part that extend radially from an inner side end of the plenum flange; and', 'a plenum guide surface that extends radially from an outer side end of the plenum flange toward the inner space of the discharge cover., 'wherein the discharge plenum of the discharge unit comprises2. The linear compressor of claim 1 ,wherein the plenum flange of the discharge plenum of the discharge unit extends radially such that the outer side end of the plenum flange is in contact with the inner space of the discharge cover of the discharge unit, andwherein the plenum guide surface of the discharge plenum of the discharge unit extends axially upward from the outer side end of the plenum flange.3. The linear compressor of claim 1 ...

LINEAR COMPRESSOR

Provided is a linear compressor. Provided is a linear compressor. The linear compressor includes a shell defining an internal space, a compressor body disposed in the internal space, and a passage guide disposed between the shell and the compressor body. The passage guide may include a first guide part extending along an inner surface of the shell in an axial direction and a second guide part extending from the first guide part to the compressor body in a radial direction. 1. A linear compressor comprising:a shell that defines an internal space therein;a compressor body disposed in the internal space of the shell; anda passage guide disposed in the internal space of the shell at a position between the shell and the compressor body, a first guide part that extends along an inner surface of the shell in an axial direction of the shell; and', 'a second guide part that extends from the first guide part toward the compressor body in a radial direction of the shell., 'wherein the passage guide comprises2. The linear compressor according to claim 1 , wherein the compressor body comprises:a cylinder;a frame that accommodates at least a portion of the cylinder; anda discharge cover coupled to the frame,wherein the first guide part is disposed outside of the discharge cover in the radial direction, andwherein the second guide part is disposed forward of the frame in the axial direction.3. The linear compressor according to claim 2 , wherein the frame comprises a discharge frame surface that faces the discharge cover claim 2 , a cover flange part coupled to the discharge frame surface of the frame; and', 'a chamber part that extends forward from the cover flange part in the axial direction,, 'wherein the discharge cover compriseswherein the first guide part is disposed out of the chamber part or outside of the cover flange part in the radial direction, andwherein the second guide part is disposed forward of the discharge frame surface in the axial direction.4. The linear ...

Air conditioning apparatus

Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor ( 10 ) integrally including a compressor ( 5 ), an electric motor ( 6 ) that drives the compressor ( 5 ), and an inverter ( 7 ) including a temperature sensor ( 11 ) that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller ( 3 ) estimates a discharge temperature of the compressor ( 5 ) on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter ( 7 ), for the rotational speed of the compressor ( 5 ), and for the motive force of the compressor ( 5 ) in a refrigerating cycle ( 2 ).

LINEAR COMPRESSOR

Provided is a linear compressor. The linear compressor includes a shell defining an internal space and a compressor body disposed in the internal space. Also, the shell includes a shell body having both ends that are opened and a suction shell cover and a discharge shell cover, which are respectively coupled to both the ends of the shell body to close the internal space. Here, the discharge shell cover is provided in shape that is capable of assisting heat dissipation of the frame. 1. A linear compressor comprising:a shell that defines an internal space therein; anda compressor body disposed in the internal space of the shell, a shell body that extends in an axial direction of the shell body, the shell body having a first end and a second end that are open,', 'a suction shell cover coupled to the first end of the shell body, and', 'a discharge shell cover coupled to the second end of the shell body, the suction shell cover and the discharge shell cover closing the internal space of the shell, and wherein the discharge shell cover comprises:', 'a first portion that extends in the axial direction and that contacts an inner surface of the shell body,', 'a second portion that extends from a first side of the first portion in a radial direction of the shell body and that closes one side of the internal space of the shell, and', 'a third portion that extends from a second side of the first portion in the radial direction and that defines a discharge shell opening., 'wherein the shell comprises2. The linear compressor according to claim 1 , wherein the compressor body comprises:a cylinder;a frame that accommodates at least a portion of the cylinder; anda discharge cover coupled to the frame,wherein the second portion of the discharge shell cover faces a front side of the discharge cover in the axial direction, andwherein the first portion of the discharge shell cover is disposed outside of the discharge cover in the radial direction and extends toward one side of the frame ...

BUILT-IN AIR PUMP AND INFLATABLE DEVICE

A built-in air pump comprises a housing body and a panel. The panel couples to the housing body and defines an opening. A main pump body couples to the housing body and defines a first accommodating chamber in fluid communication with the opening and with a first and a second venting port. An air replenishing pump has an air replenishing pump body that is located adjacent to the main pump body. The air replenishing pump body couples to the housing body and defines a second accommodating chamber having therein the air replenishing pump. An air passage switch, located in the first accommodating chamber, is moveable between a first and a second position. A controller is in electrical connection with the air replenishing pump and configured to activate the air replenishing pump based on a time determination. An inflatable body including the built-in air pump assembly is also disclosed herein. 1. A built-in air pump for an inflatable body , comprising:a housing body and a panel, said panel being coupled to said housing body and defining an opening in fluid communication with an outer environment of the inflatable body;a main pump body coupled to said housing body and defining a first accommodating chamber, a first venting port, and a second venting port, said first accommodating chamber being in fluid communication with said opening, said first venting port and said second venting port;an air replenishing pump having an air replenishing pump body, said air replenishing pump body located adjacent to said main pump body and coupled to said housing body, said air replenishing pump body defining a second accommodating chamber having therein said air replenishing pump; wherein when said air passage switch is in said first position, said air passage switch, said main pump body, and said first venting port collectively define an inflation air passage;', 'wherein when said air passage switch is in said second position, said air passage switch, said main pump body, and said ...

Portable pump

A portable pump is provided including an electric motor having a drive shaft connected to a gear assembly to drive a reciprocating air compressor arrangement. The reciprocating air compressor arrangement includes a crank that drives a connecting rod and a piston within a cylinder. The connecting rod has a first end and a second end and the first end of the rod is connected to the crank while the second end of the rod connected to the piston (to drive the piston in the cylinder and provide compression). The second end of the connecting rod is connected to the piston via a pin. The piston includes a sealing arrangement. A control unit is provided which is in electrical communication with the electric motor and the air compressor to control the operation of the pump arrangement. A power supply is also provided in electrical communication with the control unit to supply power to the control unit and electric motor. The pump is provided within a housing which accommodates the electric motor, the gear assembly, the reciprocating air compressor, the control unit and the power supply. A outlet connected to the reciprocating air compressor is also provided so as to engage with an object to be pumped.

COMPRESSOR

Provided is a compressor capable of achieving a reduction in overall size and an improvement in vehicle mountability by using a linear motor. The compressor comprises a linear motor having a reciprocating mover a compression unit having a piston connected to the mover at one end side of the linear motor so as to reciprocate and a cylinder slidably accommodating the piston to form a compression chamber B, and an air dryer connected to a cylinder head of the compression chamber B of the compression unit and filled therein with a desiccant C. The air dryer is disposed along the axis in the movement direction of the mover the piston 1. A compressor comprising:a linear motor having a reciprocating mover;a compression unit having a piston connected to the mover at one end side of the linear motor so as to reciprocate, and a cylinder slidably accommodating the piston to form a compression chamber; andan air dryer connected to a discharge part of the compression chamber of the compression unit and filled therein with a desiccant;the air dryer being disposed along an axis in a movement direction of the mover and the piston.2. The compressor of claim 1 , further comprising:a passage that connects the air dryer and a tank that stores a working gas discharged from the air dryer; anda first electromagnetic valve provided in the passage;the first electromagnetic valve being disposed at an outer peripheral side of the compression unit such that a movement direction of the piston and an operating direction of the first electromagnetic valve are in a same direction.3. The compressor of claim 2 , further comprising:an air spring passage branched off from the passage to connect the air dryer and an air spring that supports a vehicle body vertically movably; anda second electromagnetic valve provided in the air spring passage;the second electromagnetic valve being disposed at an outer peripheral side of the compression unit such that the movement direction of the piston and an ...

LINEAR COMPRESSOR AND LINEAR MOTOR

A linear compressor and a linear motor are provided. The linear motor may include a first stator, a second stator spaced apart from the first stator, and a permanent magnet disposed to be movable in a first direction between the first and second stators. The first stator may include a bobbin with a coil wound thereon, and a stator core that surrounds the bobbin. The stator core may be located between the second stator and the coil and may include first and second magnetic poles spaced apart from each other. One portion or entire portions of each of the first and second magnetic poles may have a constant magnetic path width within a range of a movement trajectory of the permanent magnet. 1. A linear motor , comprising:a first stator,a second stator spaced apart from the first stator; and a bobbin with a coil wound thereon; and', 'a stator core that surrounds the bobbin, wherein a portion of the stator core is located between the second stator and the coil and includes first and second magnetic poles spaced apart from each other, and wherein a portion or all of each of the first and second magnetic poles has a constant magnetic path width within a range of a moving trajectory of the permanent magnet., 'a permanent magnet disposed to be movable in a first direction between the first and second stators, wherein the first stator includes2. The linear motor according to claim 1 , wherein the stator core includes a first core that extends in a direction substantially parallel to the first direction claim 1 , a second core that extends in a direction that crosses the first direction claim 1 , and a third core that extends in a direction that crosses the first direction claim 1 , wherein the first magnetic pole extends from the second core claim 1 , and the second magnetic pole extends from the third core claim 1 , and wherein a magnetic path width of a portion with a constant magnetic path width in the first and second magnetic poles is smaller than a magnetic path width of ...

MOTOR AND COMPRESSOR PROVIDED WITH THE SAME

A motor includes an annular core formed by stacking a plurality of electromagnetic steel sheets; end plates disposed at both ends of the core in an axial direction; a balance weight disposed on a side of one of the end plates, the side being opposite the core; and a spacer disposed between the one of the end plates and the balance weight, the spacer being configured to create a space between the one of the end plates and the balance weight. The motor is entirely fastened by allowing at least one of a plurality of rivets arranged in a circumferential direction of the core to pass through the core and the end plates in the axial direction, and allowing remaining at least one rivet to pass through the core, the end plates, the spacer, and the balance weight in the axial direction. 1. A motor comprising:an annular core formed by stacking a plurality of electromagnetic steel sheets;end plates provided at both ends of the core in an axial direction thereof;a balance weight provided on an opposite side of a side of one of the end plates, which faces the core; anda spacer provided between the one of the end plates and the balance weight, the spacer being configured to provide space between the one of the end plates and the balance weight, one of end faces of the spacer being in contact with the balance weight,wherein one or more of a plurality of rivets are inserted into the core and the end plates in the axial direction, and a remaining one or more of the plurality of rivets are inserted into the core, the end plates and the balance weight in the axial direction, such that the plurality of rivets are arranged in a circumferential direction of the core thereby fastening the core, the end plates, the spacer and the balance weight.2. The motor of claim 1 , wherein the core has stacked caulking portions at which the plurality of electromagnetic steel sheets are fixed to each other by caulking claim 1 , and the spacer is provided in such a manner as to avoid the stacked ...

Rotor Mechanism

A rotor mechanism for use in moving fluid. The rotor mechanism has six rotor units spherically arranged, with at least one rotor unit including a port through it's body. Each rotor has the form of a truncated cone with two symmetric spiral recesses provided on the lateral surface of the rotor which acts to cooperate with the adjacent rotors. Rotation of at least one rotor unit causes rotation of adjacent rotor units which thereby moves fluid without compression between the outside of the mechanism and the port via a central substantially spherical free space cavity formed by the cooperation of inner surfaces of the rotor units. The rotor mechanism is fully submersible. 1. A rotor mechanism for use in moving fluid , the rotor mechanism comprising:a plurality of rotor units spherically arranged to form a rotor mechanism body;each rotor unit including an outer surface and an inner surface and at least one rotor unit having a first opening on the outer surface and a second opening on the inner surface such that an elongate aperture extends between the first and second openings to create a port through the rotor unit; andwherein rotation of at least one rotor unit causes rotation of adjacent rotor units which thereby moves fluid without compression between an outer surface of the body and the port via a central substantially spherical free space cavity formed by the cooperation of the inner surfaces of the rotor units.2. A rotor mechanism according to wherein the rotor mechanism body is supported in an external frame.3. A rotor mechanism according to wherein the frame comprises a plurality of arcs.4. A rotor mechanism according to wherein the frame supports the body on a plurality of bearings.5. A rotor mechanism according to wherein at least two rotor units have a port through the rotor unit.6. A rotor mechanism according to wherein each rotor unit is operable to co-operate with adjacent rotor units such that during rotation plural channels are created in which fluid is ...

SEALED COMPRESSOR AND REFRIGERATION DEVICE

In a sealed compressor, electrically-operated element () and compressive element () driven by electrically-operated element () are housed in the inside of sealed container (). Compressive element () includes shaft () formed of main shaft () and eccentric shaft (), and cylinder block () having; bearing () which pivotally supports main shaft () of shaft (); and cylinder (). Further, the compressive element () includes piston () which is movable in the cylinder () in a reciprocating manner, and connecting portion () which connects eccentric shaft () and piston () to each other. Electrically-operated element () is formed of an outer-rotor-type motor which includes stator (), and rotor () which is disposed coaxially with stator () so as to surround an outer periphery of stator (). Further, non-sliding portion () is provided between main shaft () and bearing (), and stator () is fixed to outer peripheral portion () of bearing () which corresponds to non-sliding portion (). 1. A sealed compressor , wherein an electrically-operated element and a compressive element driven by the electrically-operated element are housed in a sealed container , a shaft having a main shaft and an eccentric shaft;', 'a cylinder block including: a bearing which pivotally supports the main shaft of the shaft; and a cylinder;', 'a piston which is movable in the cylinder in a reciprocating manner; and', 'a connecting portion which connects the eccentric shaft and the piston to each other,, 'the compressive element includesthe electrically-operated element is formed of an outer-rotor-type motor which includes: a stator; and a rotor which is disposed coaxially with the stator so as to surround an outer periphery of the stator,a non-sliding portion is provided between the main shaft and the bearing, andthe stator is fixed to an outer peripheral portion of the bearing which corresponds to the non-sliding portion.2. The sealed compressor according to claim 1 , wherein a length of the non-sliding portion ...

SEALED COMPRESSOR AND REFRIGERATION DEVICE

A sealed compressor includes sealed container that contains electric element, and compression element driven by electric element. Compression element includes shaft that includes main shaft portion, and eccentric shaft portion integrally movable with main shaft portion, and bearing portion that supports main shaft portion of shaft to constitute a cantilever bearing. Compression element further includes cylinder that compresses gas, piston reciprocatively inserted into cylinder, and connecting rod that connects eccentric shaft portion with piston. 1. A sealed compressor comprising a sealed container that contains an electric element , and a compression element driven by the electric element , wherein a shaft that includes a main shaft portion, and an eccentric shaft portion integrally movable with the main shaft portion,', 'a bearing portion that supports the main shaft portion of the shaft to constitute a cantilever bearing,', 'a cylinder that compresses gas,', 'a piston reciprocatively inserted into the cylinder, and', 'a connecting rod that connects the eccentric shaft portion with the piston,, 'the compression element includes{'b': 1', '1, 'claim-text': {'br': None, 'i': a', '+c, '1=π/21\u2003\u2003(1), and'}, 'an angle a formed by a first center line indicating a shaft center of the bearing portion, and a second center line indicating a shaft center of the cylinder, and an absolute value c of an angle of a tilt of the shaft with respect to the bearing portion satisfy equation (1) a seal portion producing a clearance from an inner circumferential surface of the cylinder, and forming a sliding surface,', 'an extension portion disposed in a rear of the seal portion, and forming a sliding surface, and', 'a non-sliding portion disposed in the rear of the seal portion, and not forming a sliding surface., 'an outer circumferential surface of the piston includes2. The sealed compressor according to claim 1 , wherein the extension portion has a radius same as a radius of ...

METHOD AND A SYSTEM FOR PROTECTING A RESONANT LINEAR COMPRESSOR

A method for protecting a resonant linear compressor () including structural resonance frequencies (w) and a motor that is fed by feed voltage (V) that has amplitude (A) and a drive frequency (w), both controlled according to the equation A.sin(wt). The protection method is configured so as to include the step of preventing feed to the motor at drive frequencies (w) that have at least one harmonic coinciding tithe the structural resonance frequency (w) of the resonant linear compressor (). A protection system of a resonant linear compressor () includes an electronic control () configured to prevent feed to the motor at the drive frequencies (w) that have at least one harmonic coinciding with the structural resonance frequency (w) of the resonant linear compressor (). 11414. A method for protecting a resonant linear compressor () , which comprises structural resonance frequencies (w) and a motor that is fed by a feed voltage (Va) that has amplitude (A) and a drive frequency (w) , both controlled according to the equation A.sin(wt) , the method comprising a step of preventing feed to the motor at the drive frequencies (w) that have at least one harmonic coinciding with the structural resonance frequency (w) of the resonant linear compressor ().214141027777121a,ba,b. The method of protecting a resonant linear compressor () according to claim 1 , in which the resonant linear compressor () comprises a piston () claim 1 , a cylinder () claim 1 , a motor and a sparing () claim 1 , wherein the drive frequency (w) is derived from actuation of the spring () and from the amplitude (A) of the feed voltage (Va) on the piston () claim 1 , which moves within the cylinder () claim 1 , the protection method comprising controlling a phase between an electric current i(t) of the compressor and the piston () displacement velocity.314. The method of protecting a resonant linear compressor () according to claim 2 , further comprising the step of establishing the phase between the ...

COMPRESSOR

A compressor includes: a plurality of terminals; a terminal cover protecting the plurality of terminals; a temperature sensor configured to detect a temperature of a shell; and a cover having a flat portion disposed around the plurality of terminals, and a sensor protection portion covering the temperature sensor, the sensor protection portion being integrally formed with the flat portion to extend from the flat portion. The terminal cover is attached to cover the flat portion of the cover in a state in which the temperature sensor disposed on the shell is covered by the sensor protection portion of the cover. Thus, it is possible to prevent a lead wire of the temperature sensor from being accidentally cut when the terminal cover is attached. 1. A compressor comprising:a plurality of terminals;a terminal cover protecting the plurality of terminals;a temperature sensor configured to detect a temperature of a shell; and a flat portion disposed around the plurality of terminals, and', 'a sensor protection portion covering the temperature sensor, the sensor protection portion being integrally formed with the flat portion to extend from the flat portion,, 'a cover having'}wherein the terminal cover is attached to cover the flat portion of the cover in a state in which the temperature sensor disposed on the shell is covered by the sensor protection portion of the cover,whereinthe sensor protection portion covers and is not in contact with the temperature sensor and a vicinity of the temperature sensor.2. (canceled)3. A compressor comprising:a plurality of terminals;a terminal cover protecting the plurality of terminals;a temperature sensor configured to detect a temperature of a shell; and a flat portion disposed around the plurality of terminals, and', 'a sensor protection portion covering the temperature sensor, the sensor protection portion being integrally formed with the flat portion to extend from the flat portion,, 'a cover having'}wherein the terminal cover is ...

Load-balanced mud pump assembly

A load-balanced, high-capacity mud pump is provided. In some embodiments, load balancing is achieved by spacing hubs along the crankshaft of the mud pump with the bull gears disposed opposite one another, on outer ends of the crankshaft adjacent to the housing. In such an embodiment, the hubs are disposed along the crankshaft between the bull gears. A pinion shaft (or separate pair of shafts) can be provided, mechanically supported in the mud pump by roller bearings or lubricated pads. Additional systems, devices, and methods are also disclosed.

Fluid energy machine, method for generating a fluid volume flow and/or for compressing a fluid and method for refuelling a vehicle

The invention relates to a fluid energy machine and a method for generating a fluid-volume flow and for compressing a fluid by means of the fluid energy machine according to the invention. The invention also relates to a method for refuelling a vehicle with a fluid using the method according to the invention for generating a fluid-volume flow and for compressing a fluid, and to the use of a fluid energy machine according to the invention for refuelling a motor vehicle. The fluid energy machine comprises a crank drive ( 20 ) and a drive device ( 10 ) that is mechanically connected to the crank drive ( 20 ), by means of which drive device a torque can be introduced into the crank drive ( 20 ), as well as a piston-cylinder unit ( 30 ), the piston ( 32 ) of which is mechanically connected to the crank drive ( 20 ). The drive device ( 10 ) comprises two electric motors ( 50, 60 ), the respective output members ( 51, 61 ) of which are mechanically connected to the crank drive ( 20 ).

REFRIGERATOR CONTROLLING METHOD AND SYSTEM WITH LINEAR COMPRESSOR

The present invention discloses a refrigerator controlling method and system with a linear compressor. The method comprises: monitoring an environment temperature T of the refrigerator located in the environment comparing the environment temperature T with a preset environment temperature threshold T if T is larger than T controlling a refrigerating unit and/or a heating unit in the refrigerator such that the refrigerator runs under a first operation condition; and if T is smaller than or equal to T controlling the refrigerating unit and/or the heating unit in the refrigerator such that the refrigerator runs under a second operation condition. When the linear compressor runs within predetermined time, a refrigeration amount of the linear compressor under the second operation condition is controlled to be larger than a refrigeration amount of the linear compressor under the first operation condition, such that a compartment of the refrigerator reaches a target temperature. 1. A refrigerator controlling method with a linear compressor , the method comprising:monitoring an environment temperature T of the refrigerator located in the environment;{'b': '0', 'comparing the environment temperature T with a preset environment temperature threshold T;'}{'b': '0', 'if T is larger than T, controlling a refrigerating unit and/or a heating unit in the refrigerator such that the refrigerator runs under a first operation condition; and'}{'b': '0', 'if T is smaller than or equal to T, controlling the refrigerating unit and/or the heating unit in the refrigerator such that the refrigerator runs under a second operation condition;'}wherein, when the linear compressor runs within predetermined time, controlling a refrigeration amount of the linear compressor under the second operation condition to be larger than a refrigeration amount of the linear compressor under the first operation condition, such that a compartment of the refrigerator reaches a target temperature.2. The method of ...

METHOD FOR DETECTING A BLOCKED VALVE OF A COOLANT COMPRESSOR AND A CONTROL SYSTEM FOR A COOLANT COMPRESSOR

A method for detecting a blocked valve of a coolant compressor including a drive unit and a piston-cylinder unit for cyclical compression of a coolant, wherein the drive unit has an electric motor for driving the piston-cylinder unit, monitors the speed (ω) of the electric motor. A maximum speed (ω) of the electric motor is initially detected, and the following steps are carried out, as long as the speed (ω) of the electric motor substantially corresponds to the maximum speed (ω): determining a maximum value Xof a monitoring parameter (I, T) of the coolant compressor (1); determining a value Xof the monitoring parameter (I, T) after a first time period (t1) after determining the maximum value X; detecting a blocked valve if Xis less than Xand (X−X)/X≥Δapplies, wherein Δis predetermined. 1144. A method for detection of a blocked valve of a coolant compressor () having a drive unit () and a piston/cylinder unit for cyclical compression of a coolant , wherein the drive unit () has an electric motor for drive of the piston/cylinder unit , wherein the speed of rotation (ω) of the electric motor is monitored , wherein first , a maximal speed of rotation (ω) of the electric motor is detected and that the following steps are carried out , as long as the speed of rotation (ω) of the electric motor essentially corresponds to the maximal speed of rotation (ω):{'sub': 'max', 'b': '1', 'determination of a maximal value Xof a monitoring parameter (I, T) of the coolant compressor ();'}{'sub': 1', 'max, 'b': '1', 'determination of a value Xof the monitoring parameter (I, T) after a first time span (t) after the determination of the maximal value X;'}{'sub': t1', 'max', 'max', 't1', 'max', 'X', 'X, 'detection of a blocked valve, if Xis less than Xand (X−X)/X≥Δholds true, wherein Δis predetermined.'}20405. The method according to claim 1 , wherein Δis ≥0.2 claim 1 , preferably Δis z . claim 1 , particularly preferably Δis z ..31. Method The method according to to claim 1 , c claim 1 ...

Portable inflator

A portable inflator ( 1 ) includes a motor ( 51 ), a compression mechanism ( 6 ) driven by the motor ( 51 ) to compress and discharge air, a main body housing ( 2 ), a leg ( 3 ), a grip ( 4 ), and a manually-operable trigger ( 41 ) provided on the grip. The main body housing ( 2 ) includes a battery mount part ( 251 ) for detachably mounting a battery ( 8 ), and houses the motor ( 51 ) and the compression mechanism ( 6 ). The leg ( 3 ) supports the main body housing ( 2 ) when a lower surface ( 31 ) of the leg ( 3 ) is disposed on a placement surface (P). The grip ( 4 ) is connected to the main body housing ( 2 ) and extends at least substantially parallel to the lower surface ( 31 ) of the leg ( 3 ). The motor ( 51 ) is driven in accordance with pulling of the trigger ( 41 ).

CYLINDER ASSEMBLE STRUCTURE FOR COMPACT AIR COMPRESSOR

A cylinder coupling structure of a compact air compressor includes a block, a tubular-shaped cylinder assembled to the block, a valve cover which covers the valve assembly, at least one pressurized bolt which assembles the valve cover and the block, a piston which is reciprocated inside the cylinder, a stator which is assembled to the block, a rotator which is located to relatively rotate as to the stator, a crank axis which is assembled to the rotator to integrally rotate with the rotator to be axially supported in the block to be rotatable, and a connecting rod, each of both ends thereof is connected to the crank axis and the piston, respectively. 1. A cylinder coupling structure of a compact air compressor , comprising:{'b': '40', 'a block ;'}{'b': 50', '40, 'a tubular-shaped cylinder coupled to the block ;'}{'b': '70', 'a valve assembly provided with a suction valve and a discharge valve to block a front end of the cylinder;'}{'b': 80', '70', '70, 'a valve cover covering the valve assembly so as to form a suction space and a discharge space at an upper portion of the valve assembly ;'}{'b': 90', '80', '40', '50', '80', '40, 'at least one pressurized bolt coupling the valve cover and the block so as to pressurize the cylinder between the valve cover and the block ;'}{'b': 60', '50, 'a piston reciprocating inside the cylinder ;'}{'b': 21', '40, 'a stator coupled to the block ;'}{'b': 25', '21, 'a rotator located to rotate relatively with respect to the stator ;'}{'b': 30', '25', '40, 'a crank axis coupled to the rotator to rotate integrally with the rotator to be rotatable coaxially with the block ; and'}{'b': 34', '60, 'a connecting rod , each of both ends thereof being connected to the crank axis and the piston, respectively, so as to convert a rotational movement of the crank axis into a straight reciprocating movement of the piston ,'}{'b': 60', '63', '65', '61, 'characterized in that the piston has double O-rings , installed on each of the front end part and ...

Gas Compressor

To prevent generation of drain reliably without depending on a difference in ambient temperature where a compressor is installed. Provided is a gas compressor: having a compressor main body compressing a gas, a drive source driving the compressor main body, a controller controlling the rotation speed of the drive source according to the discharge pressure of the compressor main body, and a temperature detector detecting the temperature of a discharge gas of the compressor main body; and performing no-load operation with the rotation speed of the drive source as a lower limit rotation speed when the discharge pressure reaches an upper limit pressure higher than a set pressure. When detecting that the temperature detected by the temperature detector is equal to or lower than a predetermined temperature during the no-load operation, the controller causes the lower limit rotation speed of the drive source to a lower limit rotation speed at which the temperature of the discharge gas is higher than the predetermined temperature and which is higher than a lower limit rotation speed when the detected temperature is higher than the predetermined temperature.

DEVICE AND METHOD FOR CONTROLLING A HYDRAULIC SYSTEM, ESPECIALLY OF AN ELEVATOR

The present invention relates to a control device for pressure control in a hydraulic system, especially of an elevator-system, the control device is adapted to control an output variable of an inverter supplying a hydraulic pump of the hydraulic system with electric energy, the output variable is adapted to adjust the speed of the hydraulic pump in order to at least partly compensate for a leakage of operating fluid in the hydraulic pump. Further, the invention relates to an elevator-system comprising a hydraulic pump, an inverter, and a control device which controls a supply of the hydraulic pump with electric energy from the inverter. Moreover, the invention relates to a method for pressure control in a hydraulic system, especially of an elevator-system, the method comprising the steps of supplying a hydraulic pump of the hydraulic system with electric energy from an inverter, controlling at least one output variable of the inverter for adjusting the speed of the hydraulic pump, in order to at least partly compensate for a leakage of operating fluid in the hydraulic pump. For providing an inexpensive elevating solution with good right quality for hydraulic elevators, the present invention provides that the control device comprises a computing module which is adapted to determine the output variable based on at least one inverter parameter. 1. A hydraulic system control device comprisingan inverter supplying a hydraulic pump of the hydraulic system with electric energy, wherein the inverter has an output variable that is adapted to adjust a speed of the hydraulic pump in order to at least partly compensate for a leakage of operating fluid in the hydraulic pump, andcomprising a computing module which is adapted to determine the output variable based on at least one inverter parameter.2. The control device according to claim 1 , wherein the at least one inverter parameter comprises at least one of an output current claim 1 , torque producing current claim 1 , and ...

Electric Compressor

An electric compressor is provided which is capable of reducing the number of components in an inverter circuit section installed in an inverter storing section and attaining its miniaturization as well. A sleeve assembly ( 18 ) of an inverter circuit section ( 3 ) has positioning pins ( 37 ) and ( 38 ) for an inverter control board ( 17 ) and a power module ( 14 ). The positioning pins ( 37 ) and ( 38 ) are thermally caulked in a state in which the sleeve assembly ( 18 ) is interposed by the inverter control board ( 17 ) and the power module ( 14 ) to thereby make the inverter circuit section ( 3 ) integral. The integrated inverter circuit section ( 3 ) is installed in an inverter storing section ( 8 ) constituted on an outer surface of a housing ( 2 ).

METHOD OF CONTROLLING AN ELECTRIC SUBMERSIBLE PUMP

A method of controlling an electric submersible pump, comprising: a) monitoring the pressure at the suction and discharge of the pump; b) calculating the pressure difference between the discharge and suction pressure; and c) controlling the pump to maintain a constant pressure difference between the discharge and suction pressure. 1. A method of controlling an electric submersible pump , comprising:a. monitoring the pressure at the suction and discharge of the pump;b. calculating the pressure difference between the discharge and suction pressure; andc. controlling the pump to maintain a constant pressure difference between the discharge and suction pressure.2. The method of wherein the electric submersible pump is located in a subsea caisson below the seafloor.3. The method of wherein the electric submersible pump comprises a pump and a shroud.4. A method of starting up an electric submersible pump during start up claim 1 , comprising: i. monitoring the pressure at the suction and discharge of the pump;', 'ii. calculating the pressure difference between the discharge and suction pressure; and', 'iii. controlling the pump to maintain a constant pressure difference between the discharge and suction pressure; and, 'a. starting the pump on constant boost control, comprising i. monitoring the pressure at the caisson top; and', 'ii. controlling the pump to maintain a constant pressure at the caisson top., 'b. switching the constant boost control to pressure control, comprising5. The method of wherein the switching the constant boost control to pressure control is carried out by operator intervention.6. A method of controlling an electric submersible pump during operation claim 4 , comprising:a. monitoring the pressure at the caisson top;b. switching the pressure control to constant boost control when the pressure goes outside of a determined operational pressure range during operation; andc. switching the constant boost control to pressure control when the pressure has ...

Reciprocating compressor

A reciprocating compressor is provided for which natural frequencies of a front side support spring and a rear side support spring are formed to be different such that a natural frequency of one support spring is lower than an operating frequency and a natural frequency of the other support spring is higher than the operating frequency, whereby both support springs may resonate in mutually opposite directions to form an antiphase, and thus, compressor vibrations may be effectively reduced without reducing a stiffness of both support springs.

LINEAR COMPRESSOR AND A LINEAR MOTOR FOR A LINEAR COMPRESSOR

An linear compressor and a linear motor for a linear compressor is provided. The linear compressor may include a shell, in which a suction inlet may be provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a frame coupled to an outer side of the cylinder, a piston reciprocated in an axial direction within the cylinder, a stator cover coupled to the frame, and a linear motor supported by the frame and the stator cover to provide power to the piston. The stator cover may include a body, and at least one frame coupling portion coupled to the frame. The at least one frame coupling portion may extend from the body toward the frame.

LINEAR COMPRESSOR AND LINEAR MOTOR FOR A LINEAR COMPRESSOR

A linear compressor and a linear motor for a linear compressor are provided. The linear motor may include a first stator, a second stator spaced apart from the first stator, and at least one permanent magnet disposed between the first stator and the second stator. The first stator may include a bobbin around which a coil may be wound, and a plurality of core blocks that surrounds the bobbin. In at least one core block of the plurality of core blocks, a distance between a first surface that faces the second stator and a second surface of the second stator that faces the first surface varies in a circumferential direction of the second stator.

Linear compressor

A linear compressor is provided that may include a shell in which a discharge port is provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a piston disposed to be reciprocated in an axial direction within the cylinder, a discharge valve disposed on or at one side of the cylinder to selectively discharge the refrigerant compressed in the compression space, the discharge valve including an insertion protrusion, and a valve spring coupled to the discharge valve to provide a restoring force to the discharge valve. The valve spring may include a spring body having a central portion defined at a portion corresponding to a center of the cylinder, and an insertion hole defined in the spring body. The insertion hole may be coupled to the insertion protrusion of the discharge valve. The central portion of the spring body may be spaced apart from a central portion of the insertion hole.

System for tire inflation

A system for tire inflation including a drive mechanism defining a rotational axis, including an eccentric mass that offsets a center of mass of the drive mechanism from the rotational axis along a radial vector; a pump arranged radially distal the rotational axis of the drive mechanism, including a chamber defining a chamber lumen, and a reciprocating element arranged at least partially within the chamber lumen and translatable along a pump axis; a drive coupler coupled between the drive mechanism at a first position and the reciprocating element at a second position fixed to the reciprocating element; a torque regulation mechanism; and a controller, communicatively coupled to the torque regulation mechanism; wherein the system is operable between at least a first mode and a second mode by the torque regulation mechanism in cooperation with the controller.

Portable Air Compressor

The current invention is a portable air compressor that are is designed to be stored in vehicles for emergency situations. The portable air compressor has a hard shell, a stretching air tube, wires to connect to the car battery, a pressure display gauge, and buttons for operation. The air compressor would be stored in the vehicle, with an intention for it to be stored in the trunk. For use, the air compressor would be moved to the engine and connected to the battery. The air tube can stretch and be able to reach each of the tires.

MULTIPLE DIAPHRAGM PUMP

A diaphragm pump assembly can include a pump drive chamber, a first pump diaphragm chamber, and a second pump diaphragm chamber. The assembly can include a pump motor configured to rotate a motor shaft extending into the pump drive chamber. The assembly can include a cam connected to the motor shaft and configured to rotate in response to rotation of the motor shaft. The assembly can include a drive yoke having a yoke frame and a yoke pocket having a first wall and a second wall parallel and opposite the first wall. First and second pistons can connect to the drive yoke and to first and second diaphragms, respectively. The diameter of the cam can be less than and within 5% the width of yoke pocket and the yoke can be configured to move the pistons along a straight line. 1. A diaphragm pump assembly comprising: a manifold inlet;', 'a manifold outlet;', 'a pump drive chamber;', 'a first pump diaphragm chamber positioned in a first fluid path between the manifold inlet and the manifold outlet; and', 'a second pump diaphragm chamber positioned in a second fluid path between the manifold inlet and the manifold outlet, 'a valve manifold havinga pump motor having a motor shaft, the pump motor configured to rotate the motor shaft, the motor shaft extending into the pump drive chamber;a cam having a cam diameter and connected to the motor shaft, the cam configured to rotate in response to rotation of the motor shaft; a yoke frame; and', 'a yoke pocket surrounded by the yoke frame, the yoke pocket having a height, a width, a first wall extending along at least a portion of the height of the yoke pocket, and a second wall parallel and opposite to the first wall;, 'a drive yoke havinga first piston connected to the drive yoke and extending into the first pump diaphragm chamber;a second piston connected to the drive yoke and extending into the second pump diaphragm chamber;a first diaphragm connected to the first piston and positioned within the first pump diaphragm chamber;a ...

MULTI-CYLINDER FRIGORIFIC COMPRESSOR WITH EXTERNAL DELIVERY MANIFOLD

A multi-cylinder reciprocating compressor, especially suitable for carbon dioxide frigorific circuits, wherein the high-pressure chambers of the heads are connected via an external manifold, comprising a high-pressure cock which, in co-operation with the casing, defines a channel which environmental air flows through to remove heat. 23234. The compressor according to the previous claim characterized in that it comprises a plurality of said manifolds () which connect two or more heads () respectively , each manifold () comprising a respective high-pressure cock ().3. The compressor according to any of the previous claims characterized in that it comprises a transparent porthole in correspondence with said lower lubricating oil collection area.4. The compressor according to any of the previous claims characterized in that it is a semi-hermetic compressor.51. The compressor according to the previous characterized in that said casing () is hermetically closed by two end covers. The present invention belongs to the sector of multi-cylinder reciprocating compressors, wherein a fluid is compressed thanks to the action exerted by a plurality of pistons which slide inside a respective cylinder, being driven by one motor which, by way of a crankshaft, transmits motion to the connecting rods used to drive the pistons.In particular, this invention belongs to the sector of reciprocating compressors used in frigorific circuits to compress a thermal carrier fluid, by increasing the pressure of the latter in such a way that it can subsequently expand in a heat exchanger, thereby subtracting heat from another fluid.The device according to the present invention is preferably, but not exclusively, used in carbon dioxide compressors.The multi-cylinder reciprocating compressors of the prior art comprise a casing which develops according to a horizontal longitudinal axis and receives an electric motor internally thereto which drives a crankshaft into rotation, by means of which pistons ...

Device for driving a compressor and method for assembling the device

The invention relates to a device for driving a compressor of a vaporous fluid, particularly an electric motor. The device has a rotor and a stator, which are extended along a common longitudinal axis, as well as an insulation element. The insulation element is designed as a single part and connected with a stator core of the stator in a form-fitting manner such that the stator core and the insulation element form an integral and single-part component of the stator. The invention further relates to a method for producing a stator of the device, particularly the stator core with the insulation element.

CONTROL DEVICE, CONTROL METHOD, MOTOR, AND ELECTRIC OIL PUMP

A controller of a motor control device increases a voltage to be applied to a coil based on a control signal calculated from an estimated rotation speed, when the estimated rotation speed becomes equal to or lower than a predetermined rotation speed, increases the voltage to be applied to the coil based on a control signal calculated from an actual rotation speed, in a case where the actual rotation speed is lower than the predetermined rotation speed when the estimated rotation speed becomes higher than the predetermined rotation speed, and decreases the voltage to be applied to the coil based on a control signal calculated from the actual rotation speed, in a case where the actual rotation speed is higher than the predetermined rotation speed when the estimated rotation speed becomes higher than the predetermined rotation speed. 122-. (canceled)23. A control device to control a motor that includes a stator including a coil and a rotor including a permanent magnet , the control device comprising:a detector to detect a rotational position of the rotor for each predetermined rotary angle and output a positional signal indicating the detected rotational position;a first calculator to receive the positional signal output by the detector and calculate an actual rotation speed of the rotor based on a time interval at which the positional signal is received;a second calculator to calculate an estimated rotation speed of the rotor based on a time interval between a time point at which the first calculator receives the positional signal and an assumed time point at which the first calculator is assumed to receive a subsequent positional signal assuming that the first calculator receives the positional signal subsequent to the positional signal;a comparator to compare the actual rotation speed of the rotor calculated based on a time interval between when the first calculator receives the positional signal and when the first calculator receives a position signal prior to the ...

RECIPROCATING COMPRESSOR

A reciprocating compressor is provided that may include an outer stator; an inner stator provided at an inner side of the outer stator with a predetermined gap therebetween; a mover configured to perform a reciprocating movement in the gap between the outer stator and the inner stator; a piston coupled to the mover to perform a reciprocating movement therewith; a cylinder, into which the piston may be inserted to form a compression space while performing a reciprocating movement; a frame coupled to the cylinder; a first support member coupled to the outer stator and the frame; and a second support member separated from the first support member, but coupled to the inner stator and the frame, thereby facilitating concentricity of the motor and compressor device, as well as simplifying an assembly process as the motor and compressor device are divided into several blocks for assembly. 1. A reciprocating compressor , comprising:an outer stator;an inner stator provided at an inner side of the outer stator with a predetermined gap therebetween;a mover configured to perform a reciprocating movement in the gap between the outer stator and the inner stator;a piston coupled to the mover to perform a reciprocating movement therewith;a cylinder into which the piston is inserted to form a compression space while performing the reciprocating movement;a frame coupled to the cylinder;a first support member coupled to the outer stator and the frame; anda second support member separated from the first support member but coupled to the inner stator and the frame.2. The reciprocating compressor of claim 1 , wherein the second support member comprises:an inner circumferential surface support portion formed in a cylindrical shape to support an inner circumferential surface of the inner stator;a lateral surface support portion that extends in a flange shape from a first lateral surface of the inner circumferential surface support portion to support a first lateral surface of the inner ...

Screw compressor

A screw compressor includes a housing having an inlet for receiving gas to be compressed by the compressor and an outlet for discharging pressurized compressed gas. A pair of meshing threaded rotors, each rotor having an axis and being rotatably received in the housing, each rotor having a first end near the inlet and a second end near the outlet. A bearing rotatably carrying each rotor about its axis and positioned near the first end and the second end of each rotor. A conduit formed in the housing in selectable fluid communication with at least one bearing and a force generating source from a pressurized fluid source, the force generating source selectably providing a force in a radial direction relative to the axis of the at least one bearing.

TIRE PRESSURE CONTROL SYSTEM AND COMPONENTS

A compressor unit () for supplying pressurized medium to a tire mounted on a vehicle wheel rim (), having a compressor () for exerting pressure on a fluid medium that is to be conveyed into the tire. The compressor unit () is dimensioned to be accommodated in a center bore () of the vehicle wheel rim () when the vehicle wheel rim () is in the mounted state on a wheel hub (); and the compressor () can be driven by a drive unit () positioned in the vicinity of the center bore () of the vehicle wheel rim (). The compressor unit () is usable with a vehicle wheel rim () having a pressurized medium supply device () for a tire that is mounted on the vehicle wheel rim (), as well as a vehicle having a vehicle wheel that includes such a vehicle wheel rim (). 1385434. A compressor unit () for supplying fluid medium to a tire () mounted on a vehicle wheel rim () , comprising:{'b': 58', '54, 'a compressor () for exerting pressure on a fluid medium that is to be conveyed into the tire ();'}{'b': 38', '44', '34', '34', '62, 'a compressor unit () dimensioned to be accommodated in a center bore () of the vehicle wheel rim () when the vehicle wheel rim () is in the mounted state on a wheel hub (); and'}{'b': 56', '58', '44', '34, 'a driver unit () driving the compressor () positioned in the vicinity of the center bore () of the vehicle wheel rim ().'}23838644434. The compressor unit () according to claim 1 , wherein the compressor unit () is embodied as modular and includes a module housing () for a precisely fit placement in the vicinity of the center bore () of the vehicle wheel rim ().338644434. The compressor unit () according to claim 2 , wherein the module housing () can be inserted like a cartridge into the center bore () of the vehicle wheel rim ().43864. The compressor unit () according to claim 2 , wherein the height of the module housing () is smaller than its diameter.538383844343634. The compressor unit () according to claim 1 , wherein the compressor unit () includes ...

WOBBLE PLATE COMPRESSOR AND OXYGEN CONCENTRATOR USING THE SAME

An oxygen concentrator includes a wobble plate compressor having one or more double-headed pistons and cylinders. A wobble plate of the compressor does not spin as an axle rotates, but orbitally tilts relative to the axle, thereby causing the double-headed pistons to move within the respective cylinders. 1. A wobble plate compressor comprising:a motor that rotates an axle around an axis of rotation;a wobble plate having at least one distal attachment member, the wobble plate coupled to the axle so that the distal attachment member reciprocates upon rotation of the axle; anda double-headed piston assembly; andat least one single-piece cylinder receiving the double-headed piston assembly to define two compression chambers, the cylinder including a window through which the wobble plate engages with the piston assembly such that the distal attachment member penetrates the piston assembly whereby the piston assembly reciprocates within the cylinder along a second axis parallel to the axis of rotation upon rotation of the axle and the distal attachment member reciprocates generally in an axial path along the second axis.2. The wobble plate compressor of claim 1 , further comprising a wobble anti-rotation device configured to prevent rotation of the wobble plate.3. The wobble plate compressor of claim 2 , wherein the wobble anti-rotation device includes a shoe pivotally coupled to the wobble plate and configured to slide against an exterior of the cylinder.4. The wobble plate compressor of claim 1 , further comprising a piston anti-rotation device configured to prevent rotation of the piston assembly relative to the cylinder.5. The wobble plate compressor of claim 4 , wherein the piston anti-rotation device includes a flange provided to the wobble plate and configured to slide against a portion of the piston assembly.6. The wobble plate compressor of claim 5 , wherein the portion of the piston assembly includes a post extending between opposite heads of the piston assembly ...

AIR COMPRESSOR

An air compressor more reliably protects a battery pack without lowering its operability for attachment to and detachment from a battery mount. The air compressor includes an electric motor driven on power from a battery pack having six faces, an operation unit operable to connect or disconnect power to the electric motor, an compression unit driven by the electric motor to produce compressed air, a tank that stores the compressed air, a battery mount that receives an attachment face of the battery pack, and a guard defining a protective area to contain the battery pack and the compression unit. The battery pack is attachable to the battery mount with at least three of the six faces exposed. 1. An air compressor , comprising:an electric motor driven on power from a battery pack having six faces;an operation unit operable to connect or disconnect power to the electric motor;an compression unit driven by the electric motor to produce compressed air;a tank configured to store the compressed air;a battery mount configured to receive an attachment face of the battery pack; anda guard defining a protective area to contain the battery pack and the compression unit, the battery pack being attachable to the battery mount with at least three of the six faces exposed.2. The air compressor according to claim 1 , further comprising:a compression unit cover covering the compression unit,wherein the battery mount is located on an upper surface of the compression unit cover.3. The air compressor according to claim 1 , whereinthe tank has a tank axis extending in a lateral direction,the electric motor has a motor axis extending in the lateral direction, andthe electric motor and the tank are adjacent to each other in a front-rear direction in a lower portion of the air compressor.4. The air compressor according to claim 1 , whereinthe compression unit includes a cylinder accommodating a piston configured to reciprocate vertically, andthe battery mount is adjacent to the cylinder and ...

PISTON COMPRESSOR AND METHOD IN WHICH SUCH A PISTON COMPRESSOR IS USED

A piston compressor, comprising at least one piston compressor element () that is provided with a housing () with a compression chamber () in which a piston () is arranged movably back and forth in an axial direction (X-X′) between an upper dead point and a lower dead point by means of a drive shaft () driven by a rotary motor (), and in which between this drive shaft () and the piston (), a kinematic transmission () is provided for the primary drive of the piston (), characterized in that the piston () is provided with a complementary drive () in the form of an electromagnetic linear drive. 13813105651020101025. A piston compressor , comprising at least one piston compressor element () that is provided with a housing () with a compression chamber () in which a piston () is arranged movably back and forth in an axial direction (X-X′) between an upper dead point and a lower dead point by means of a drive shaft () driven by a rotary motor () , and in which between this drive shaft () and the piston () , a kinematic transmission () is provided for the primary drive of the piston () , wherein the piston () is provided with a complementary drive () in the form of an electromagnetic linear drive.22510261310. The piston compressor according to claim 1 , wherein the complementary electromagnetic linear drive () comprises a direct electromagnetic drive of the piston () with one or several electrical coils () arranged around or along the compression chamber () claim 1 , which are capable of interacting inductively with the piston ().3109. The piston compressor according to claim 2 , wherein the piston () and/or the cylinder mantle () are provided with one or more magnets.42510293013263029. The piston compressor according to claim 1 , wherein the complementary electromagnetic linear drive () comprises an indirect electromagnetic drive of the piston () with a plunger () which is arranged movably back and forth in a linear guide or enclosure () or which extends parallel to the ...

Hermetic compressor

A hermetic compressor includes an airtight case a lower portion of which oil is stored in; a frame received in the airtight case; a compression mechanism disposed in the frame and to compress a refrigerant; a motor mechanism including a stator fixed to the frame and a rotor to rotate inside the stator; a rotation shaft coupled to the rotor and provided with a cavity at a lower portion of the rotation shaft, wherein the rotation shaft rotates together with the rotor and operates the compression mechanism; a stationary shaft inserted into the cavity of the rotation shaft, fixed to the airtight case, and provided with a helical groove formed on an outer circumferential surface; and an oil raising member fixed to the cavity of the rotation shaft and configured to surround the stationary shaft. The oil raising member raises the oil stored in the airtight case.

ELECTROMAGNETIC PUMP

An electromagnetic pump (). The electromagnetic pump () comprises a conduit () comprising an inlet () and an outlet (). A first magnetic field generating unit () is provided for generating a first magnetic field having a first component with a first direction in the conduit. A second magnetic field generating unit () is provided for generating a second magnetic field having a second component with a second direction in the conduit (), the second direction being substantially opposite to the first direction. A piston member () is disposed within the conduit, the piston member () being movable within the conduit () under the influence of the first and/or second magnetic fields to pump fluid received from the inlet () of the conduit () to the outlet () of the conduit (). 1. An electromagnetic pump comprising:a conduit comprising an inlet and an outlet;a first magnetic field generating unit for generating a first magnetic field having a first component with a first direction in the conduit;a second magnetic field generating unit for generating a second magnetic field having a second component with a second direction in the conduit, the second direction being substantially opposite to the first direction;a piston member disposed within the conduit, the piston member being movable within the conduit under the influence of the first and/or second magnetic fields to pump fluid received from the inlet of the conduit to the outlet of the conduit.2. An electromagnetic pump as claimed in claim 1 , wherein the first and second magnetic field generating units are adapted to be simultaneously driven to generate the first and second magnetic fields.3. An electromagnetic pump as claimed in claim 1 , wherein the first and second magnetic field generating units are adapted to be driven under one or more alternating power cycles to periodically reverse the direction of the magnetic fields generated by the first and second magnetic field generating units.4. An electromagnetic pump as ...

COMPRESSOR ASSEMBLY FOR A COMPRESSED-AIR FEED OF A COMPRESSED-AIR SUPPLY SYSTEM

A compressor assembly for a compressed-air feed of a compressed-air supply system for operating a pneumatic system includes a compressor having a con-rod, a con-rod bearing, and a cylinder. The con-rod has a compressor piston. The compressor assembly further includes a drive having a drive shaft and a drive housing. The drive shaft is mounted in a drive bearing that is disposed within the drive housing. The drive bearing and the con-rod bearing partially or completely overlap one another in the axial direction, or the axial central plane of the drive bearing and the axial central plane of the con-rod bearing lie in one bearing plane. A crank disk is fixedly connected to an end portion of the drive shaft, the crank disk having a con-rod receptacle portion that is disposed so as to be eccentric to the drive shaft, the crank disk being rotatably connected to the con-rod. 1. A compressor assembly for a compressed-air feed of a compressed-air supply system for operating a pneumatic system , the compressor assembly comprising:a compressor having a con-rod, a con-rod bearing, and a cylinder, wherein the con-rod has a compressor piston;a drive having a drive shaft, and a drive housing, wherein the drive shaft is mounted in a drive bearing that is disposed within the drive housing,wherein the drive bearing and the con-rod bearing partially or completely overlap one another in the axial direction, or the axial central plane of the drive bearing and the axial central plane of the con-rod bearing lie in one bearing plane; andwherein a crank disk is fixedly connected to an end portion of the drive shaft, the crank disk having a con-rod receptacle portion that is disposed so as to be eccentric to the drive shaft, the crank disk being rotatably connected to the con-rod by way of the con-rod bearing.2. The compressor assembly as claimed in claim 1 , wherein the crank disk claim 1 , the drive bearing claim 1 , and the con-rod bearing are disposed in such a manner that the drive ...

VALVE UNIT FOR PUMPS

A valve unit for pumps includes a first chamber communicating with an inlet conduit and with a discharge conduit, a second chamber communicating with the first via a first valve seat and with an outlet conduit. A first obturator body housed within the second chamber opens and closes the first valve seat. A third chamber communicates with the second chamber and partially defined by a sliding plunger. A second obturator body, rigidly connected to the plunger and housed within the first chamber, opens and closes the second valve seat. An internal cavity in the second obturator body communicates with the first chamber, a connection conduit in the second obturator body, communicates with the discharge conduit and with the internal cavity via a third valve seat. A third obturator body housed within the internal cavity of the second obturator body opens and closes the third valve seat. 2125295. The valve unit () according to claim 1 , wherein the third obturator body () is a spherical body.3125275225. The valve unit () according to claim 2 , wherein the internal cavity () of the second obturator body () is a cylindrical cavity.412522752251295. The valve unit () according to claim 3 , wherein a ratio between the diameter (D) of the internal cavity () of the second obturator body () and the diameter (D) of the third obturator body () is less than or equal to 1.25.5125290. The valve unit () according to claim 2 , wherein the third valve seat () is a circular seat.6125290275225. The valve unit () according to claim 3 , wherein the third valve seat () is coaxial with the internal cavity () of the second obturator body ().712512953290. The valve unit () according to claim 5 , wherein a ratio between the diameter (D) of the third obturator body () and the diameter (D) of the third valve seat () is less than or equal to 1.25.8100115120125135120. A pump () comprising an intake manifold () claim 1 , a delivery manifold () and a valve assembly () according to with the inlet conduit ...

Gas Compressor and Method for Controlling Same

The purpose of the present invention is to provide a gas compressor that can achieve reduced fluctuation of discharge pressure during compressor body number control, and a method for controlling the gas compressor. This gas compressor includes a plurality of compressor units each having a compressor body, a motor for driving the compressor body, and an inverter for controlling a rotational speed of the motor, and a control device for controlling each of the inverters, in which discharge pipes of the compressor bodies are merged with one main discharge pipe and discharge pressure of the main discharge pipe is controlled through control of pressure of the respective discharge pipes by controlling, by means of the respective inverters, driving frequencies of the compressor bodies. The control device determines whether recovery through an increase in the driving frequency of the motor of each of the compressor bodies is possible, on the basis of the pressure value and a temporal changing amount of the discharge pressure of the main discharge pipe when the driving frequency of the motor of the compressor body is being increased but has not reached an upper limit frequency, and controls an increase of the number of the compressor bodies to be operated.

Counterweight for compressor, motor for compressor and compressor

The present invention provides a counterweight for a compressor, an electric motor, with the counterweight, for a compressor, and a compressor with the electric motor or the counterweight. The counterweight comprises: a first component having an annular shape; a first groove formed in a surface of the first component and having a sidewall and a bottom wall; and a second component disposed in the first groove. With the technical solution according to the present invention, for example, counterbalance requirements are met, while fluid can be prevented from being stirred to cause power loss.

SEALED COMPRESSOR AND REFRIGERATION UNIT COMPRISING SEALED COMPRESSOR

A sealed compressor comprises a sealed container () which accommodates an electric component () and a compression component (); wherein the compression component () includes a shaft () including a main shaft section () and an eccentric shaft section (), a cylinder block (), a piston (), and a main bearing unit () mounted to the cylinder block () and supporting the main shaft section () such that the main shaft section () is rotatable, a thrust ball bearing () mounted to a thrust surface () of the main bearing unit (); and the thrust ball bearing () includes a plurality of balls () held in a cage (), an upper race () having main surfaces one of which is in contact with upper portions of the balls (); and a lower race () having main surfaces one of which is in contact with lower portions of the balls () and; a restricting means for restricting a displacement of the upper race () with respect to the shaft (). 1. A sealed compressor comprising:an electric component including a stator and a rotor;a compression component actuated by the electric component;a sealed container which accommodates the electric component and the compression component and stores lubricating oil therein;wherein the compression component includes a shaft including a main shaft section to which the rotor is fastened and an eccentric shaft section, a cylinder block having a compression chamber, a piston reciprocatable inside the compression chamber, a connecting member for coupling the piston to the eccentric shaft section, and a main bearing unit mounted to the cylinder block and supporting the main shaft section such that the main shaft section is rotatable, a thrust ball bearing mounted to a thrust surface of the main bearing unit; and the thrust ball bearing includes a plurality of balls held in a cage, an upper race having main surfaces one of which is in contact with upper portions of the balls; and a lower race having main surfaces one of which is in contact with lower portions of the balls ...

SYSTEM FOR CONTROLLING A RESONANT LINEAR COMPRESSOR PISTON, METHOD FOR CONTROLLING A RESONANT LINEAR COMPRESSOR PISTON, AND RESONANT LINEAR COMPRESSOR

A control method and a system for controlling the piston of a resonant linear compressor including at least one electronic control unit, the electronic control unit including at least one observing electronic circuit and at least one control circuit associated to each other. The observing electronic circuit is configured for: measuring at least one electric magnitude of the electric motor; estimating at least one set of electric parameters and at least one set of mechanical parameters of the resonant linear compressor; and estimating and providing at least one control parameter of the system for the control circuit based on the measured electric magnitude measured and on the estimated set of electric and mechanical parameters. The control circuit is configured for actuating the electric motor from the at least one control parameter. 1100. A control method for the piston of a resonant linear compressor , the resonant linear compressor () comprising at least one electric motor , the electric motor being actuated by a frequency inverter , the control method comprising the following steps:{'sub': R', 'd', 'm, 'b': '100', 'a) measuring each operation cycle (T) of the resonant linear compressor (), with a discretization frequency (F), a measured current (i) of the electric motor;'}{'sub': R', 'm', 'R', 'R, 'b': 100', '100, 'b) calculating an operation cycle (T) of the resonant linear compressor () from the measured current (i) of the electric motor, and on the basis of the calculated operation cycle (T), calculating a resonance frequency (F) of the resonant linear compressor ();'}{'sub': R', 'd', 'e, 'b': '100', 'c) calculating at each operation cycle (T) of the resonant linear compressor (), at the discretization frequency (F), a calculated current of the motor (i(t)), a piston displacement (de(t)) and a piston velocity (Ve(t));'}{'sub': R', 'd', 'eo', 'm', 'e, 'b': '100', 'd) calculating at each operation cycle (T) of the resonant linear compressor (), at the ...

Cryocooler with Magnetic Reciprocating Piston

A cryocooler is described that can include a pressure wave generator, and a refrigeration device (for example, a coldhead), which can be used to liquefy a gas when the gas is exposed to a surface of the refrigeration device. The pressure wave generator can include one or more motors. Each motor can include a stator, and at least one electrical coil wound around a portion of the stator. The electrical coil can generate a reversing magnetic field when alternating electric current is passed through the electrical coil. The motor can further include a pressurized container that can be placed within the space enclosed by the stator, and a piston that can be placed inside the pressurized container. The stators can be placed external to the pressurized container. The piston is made by combining magnets that have opposite and transverse polarities, and are combined adjacently on a common reciprocating axis. 1. A motor comprising:a stator defining a space;an electrical coil configured to be wound around a portion of the stator, the electrical coil configured to generate a reversing magnetic field in the stator and in the space defined by the stator when alternating electric current is passed through the electrical coil;a pressurized container configured to be placed within the space enclosed by the stator; anda piston configured to be placed inside the pressurized container, the piston sliding within the pressurized container in response to the reversing magnetic field.2. The motor of claim 1 , wherein the piston comprises a combination of a first magnet and a second magnet that have opposite and transverse polarities claim 1 , the first magnet and the second magnet being combined on a common axis.3. The motor of claim 2 , wherein:each of the first magnet and the second magnet are cylindrical;a substantial portion of the pressurized container is cylindrical; anda diameter of each of the first magnet and the second magnet is substantially equal to an inner diameter of the ...

Linear compressor

A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a supply port radially passing through the cylinder, and a recess formed on an inner circumferential surface of the cylinder and communicating with the supply port. The supply port includes a first supply port and a second supply port disposed in a rear of the first supply port, and the recess includes a first recess and a second recess disposed in a rear of the first recess. The first recess and the second recess are formed in different shapes.

OPERATING METHOD OF A COMPRESSOR OF A REFRIGERATING MACHINE AND COMPRESSOR OF A REFRIGERATING MACHINE

Operating method () for a compressor () of a refrigerating machine (), said compressor () comprising an electric motor () and a power supply device () configured to modulate a supply voltage (V) and/or current (I) and/or frequency (F) for driving said electric motor (), said method () being characterized in that it involves: —setting (A) a stator resistance calibration N value (Ro) and at least one threshold value (S, S, S, S) for a control parameter (R), said threshold value (S, S, S, S) being correlated to said calibration value (Ro); —injecting (B), continuously during operation of said electric motor (), a disturbance signal (V, I) into said electric motor () by means of said power supply device (), said disturbance signal (V, I) consisting of a disturbance of said supply voltage (V) and/or current (I); detecting (C) f by means of voltage and current measurements at the phases of said electric motor (), a resulting voltage signal (V) and a resulting current signal (I), corresponding to said perturbation signal (V, I); —associating (D) with said control parameter (R) a value calculated as a function of said resulting voltage signal (V) and a resulting current signal (I); —regulating or interrupting (E) said supply voltage (V) and/or current (I) and/or frequency (F) depending on said control parameter (R) with respect to said at least one threshold value (S, S, S, S). 11010110010110210310210. An operating method () for a compressor () of a refrigerating machine () , said compressor () comprising an electric motor () and a power supply device () configured to modulate a supply voltage (V) and/or current (I) and/or frequency (F) for driving said electric motor (); said method () being characterized by the following steps:{'b': ['1', '2', '3', '4', '1', '2', '3', '4'], '#text': 'setting (A) a stator resistance calibration value (Ro) and at least one threshold value (S, S, S, S) for a control parameter (R), said threshold value (S, S, S, S) being correlated to said ...