РАДИАЛЬНОЕ ЛОПАСТНОЕ КОЛЕСО

Изобретение относится к радиальному лопастному колесу, содержащему первую концевую пластину 1 и вторую концевую пластину и расположенные на соответствующем расстоянии друг от друга лопасти 3. Первая концевая пластина 1 имеет отверстие, которое обеспечивает возможность притока к радиальному лопастному колесу. Лопасти 3 расположены между первой и второй концевыми пластинами. Для достижения оптимальной эффективности радиальное лопастное колесо содержит внутреннюю и внешнюю части с лопастями 3, в которых искривление R1 и R2 лопастей 3 сформировано так, чтобы доставлять энергию движения к переносящимся частицам во время вращения радиального лопастного колеса. Искривление лопастей 3 на внешней части сформировано таким образом, что U·Cu=constant, где U - окружная скорость, Сu - абсолютная скорость частицы вдоль лопасти 3, спроецированная на направление окружной скорости U. Изобретение направлено на повышение производительности. 9 з.п. ф-лы, 6 ил.

ЦЕНТРОБЕЖНАЯ ТУРБИНА, СПОСОБ ОПРЕДЕЛЕНИЯ ОСТАВШЕГОСЯ РЕСУРСА ТУРБИНЫ И УСТРОЙСТВО УПРАВЛЕНИЯ РАБОЧИМ КОЛЕСОМ ТУРБИНЫ

Изобретение относится к энергетике. Центробежная турбина включает в себя рабочее колесо и датчик скорости, измеряющий скорость вращения рабочего колеса. Датчик температуры определяет температуру на выходе рабочего колеса. Система управления получает параметры рабочего колеса: температуру и скорость вращения. Способ расчета основан на математическом использовании параметров рабочего колеса для определения его оставшегося ресурса. Срабатывания программы, такие как включение предупредительной сигнализации, активируются системой управления по достижении предела ресурса. Система управления периодически высчитывает оставшийся ресурс, основываясь на данных скорости и температуры. Например, изменение оставшегося ресурса высчитывается, если изменение скорости приводит к нагрузкам на рабочее колесо, превышающим предел его прочности. Изобретение позволяет повысить надежность эксплуатации турбины. 3 н. и 12 з.п. ф-лы, 5 ил.

СИСТЕМА УПРАВЛЕНИЯ ЖИДКОСТНЫМ ДИАФРАГМЕННЫМ НАСОСОМ И СПОСОБ УПРАВЛЕНИЯ ЖИДКОСТНЫМ ДИАФРАГМЕННЫМ НАСОСОМ

Использование: для использования постоянного потока жидкости в различных гидросистемах. Сущность изобретения: корпус насоса разделен диафрагмой на камеру накачивания и приводную камеру, в которой размещен измерительный шток, связанный с диафрагмой. Источник приводной среды сообщен с приводной камерой через последовательно связанные управляемый питательный клапан и регулятор давления. Датчики верхнего и нижнего крайних положений штока и чувствительный элемент для регистрации перемещения диафрагмы соединены с центральным блоком формирования сигналов управления, подключенным к питательному клапану. Центральный блок снабжен элементом вычисления фактического времени опорожнения камеры накачивания и элементом сравнения для формирования сигнала рассогласования фактического и заданного времени опорожнения, а также программируемым реле времени для установления времени длительности полного цикла работы насоса. Управление давлением приводной среды осуществляют после окончания заданного времени цикла ...

МИКРОНАСОС

... 1. Насос, включающий статор (8), ротор (6), содержащий осевое удлинение (14, 16), с возможностью перемещения и вращения установленный по меньшей мере частично в роторной камере (10) статора, и по меньшей мере первый и второй клапаны между входом и роторной камерой и, соответственно, между роторной камерой и выходом (12), которые открываются и закрываются как функция по меньшей мере углового смещения ротора, причем насос далее содержит взаимодействующие кулачковые элементы (42, 44) на роторе и статоре и механизм смещения, действующий на роторе для приложения силы на роторе в осевом направлении кулачкового элемента статора, причем кулачковые элементы (42, 44) имеют такую конфигурацию, что они разделены определенным осевым расстоянием h при угловом положении, когда оба клапана закрыты. ! 2. Насос по п.1, в котором ротор (6) имеет по меньшей мере первое и второе осевые удлинения (14, 16), имеющие различные диаметры, и первое и второе уплотнения (18, 20), закрепленные вокруг первого и второго ...

КОМПОЗИЦИОННЫЕ КОЛЬЦА ДЛЯ ПРИКРЕПЛЕНИЯ РАБОЧЕГО КОЛЕСА К ВАЛУ

... 1. Система рабочих колес центробежного компрессора, содержащая:вал, на котором имеется по меньшей мере одно прикрепленное к нему рабочее колесо;первое композиционное кольцо, прикрепленное к кромке на задней части каждого по меньшей мере одного рабочего колеса, для фиксации задней части каждого по меньшей мере одного рабочего колеса на валу; ивторое композиционное кольцо, прикрепленное к кромке на передней части каждого по меньшей мере одного рабочего колеса, для фиксации передней части каждого по меньшей мере одного рабочего колеса на валу.2. Система рабочих колес центробежного компрессора по п.1, дополнительно содержащая:по меньшей мере одну распорку рабочих колес для сохранения заданного интервала между по меньшей мере двумя рабочими колесами.3. Система рабочих колес центробежного компрессора по п.1, в которой композиционное кольцо состоит по меньшей мере из одного типа стекловолокна или углеродного волокна и полимера.4. Система рабочих колес центробежного компрессора по п.1, в которой ...

УСТРОЙСТВО НАГРЕВА ТОРЦЕВОЙ КРЫШКИ КОМПРЕССОРА

... 1. Торцевая крышка (200) компрессора для обеспечения теплового барьера для механического уплотнения, содержащая внутреннюю торцевую крышку (210), имеющую расположенное в центре отверстие (211), входное отверстие (213), канавки (212), выполненные в указанном отверстии (211) для размещения торцевой части вала компрессора, и проточный проход, выполненный по наружной поверхности, и наружную торцевую крышку (220), имеющую расположенное в центре отверстие (221) для размещения внутренней торцевой крышки (210), выходное отверстие (224) и канавки (225), проходящие по боковым поверхностям смежно в радиальном направлении с указанным отверстием (221).2. Торцевая крышка по п.1, в которой наружная торцевая крышка дополнительно имеет камеру, смежную с указанной канавкой вдоль наружной поверхности.3. Торцевая крышка по п.1, в которой наружная поверхность наружной торцевой крышки расположена вблизи механического уплотнения.4. Торцевая крышка по п.1, в которой механическое уплотнение представляет собой сухое ...

ОСЕВОЙ ВЕНТИЛЯТОР

... 1. Осевой вентилятор (1), вращающийся в направлении (V) в плоскости (XY) вокруг оси (2), содержащий центральную ступицу (3) с радиусом (Rmin), множество лопастей (4), каждая из которых имеет хвостовик (5), вершину (6), которая простирается до радиуса вершины (Rmax), при этом лопасти (4) ограничены выпуклой передней кромкой (7) и вогнутой задней кромкой (8), отличающийся тем, что передняя кромка (7) содержит первый сегмент (9) дуги окружности, ближайший к хвостовику (5), с радиусом от 79 до 97% от радиуса вершины (Rmax) и второй сегмент (10) дуги окружности, ближайший к вершине (6), с радиусом от 49,5 до 60,5% от радиуса вершины (Rmax) и радиус перехода между двумя сегментами (9, 10) дуг окружности составляет от 40 до 48,5% от протяженности (Rmax-Rmin) лопасти (4). 2. Осевой вентилятор (1) по п.1, отличающийся тем, что задняя кромка (8) содержит сегмент (11) дуги окружности с радиусом от 40 до 49% от радиуса вершины (Rmax). 3. Осевой вентилятор (1) по п.1 или 2, отличающийся тем, что передняя ...

ПОРТАТИВНЫЙ ВОЗДУШНЫЙ НАСОС

... 1. Портативный воздушный насос, содержащий: ! трубчатый корпус, имеющий на первом конце верхнюю крышку с впускными отверстиями для впуска воздуха, а на втором конце соответственно нижнюю крышку для герметизации второго конца, ! цилиндр, имеющий воздушный канал, проходящий вдоль осевой линии от первого конца цилиндра ко второму его концу, и ! поршневой механизм, содержащий поршень и обратный клапан, причем поршень расположен на втором конце цилиндра, на внешнем диаметре поршня установлено поршневое кольцо, обратный клапан расположен между вторым концом цилиндра и поршнем, поршень и второй конец цилиндра расположены внутри трубчатого корпуса, поршень содержит центральное отверстие и по меньшей мере одно сквозное отверстие, сформированное в его нижней части, а насос дополнительно содержит ! головку, содержащую газовый канал, проходящий через ее нижнюю и боковую поверхности, и расположенную на первом конце цилиндра так, что ее газовый канал сообщается с воздушным каналом цилиндра, и ! штуцер ...

Flüssigkeitsausgabepumpe mit Wasserdichtung

Membranpumpe sowie Verfahren zum Einstellen einer solchen

Die vorliegende Erfindung betrifft eine Membranpumpe mit einem Förderraum, einem Druck- und einem Sauganschluss, wobei Druck- und Sauganschluss mit dem Förderraum verbunden sind, einem Hydraulikraum, wobei Förderraum und Hydraulikraum über eine Membran voneinander getrennt sind, wobei der mit einer Arbeitsflüssigkeit befüllbare Hydraulikraum mit einem pulsierenden Arbeitsflüssigkeitsdruck beaufschlagt werden kann, wodurch die Membran zwischen einer ersten Position, in der der Förderraum ein kleineres Volumen aufweist, und einer zweiten Position, in der der Förderraum ein größeres Volumen aufweist, bewegt wird, wobei der Hydraulikraum über ein Leckergänzungsventil mit einem Arbeitsflüssigkeitsvorrat verbunden ist, wobei die Membran ein Federelement mit einer ersten Federkonstante aufweist, welches derart ausgelegt ist, dass es eine erste vorbestimmte Kraft auf die Membran in Richtung der zweiten Position ausübt. Um eine Membranpumpe sowie ein Verfahren zur Einstellung einer solchen bereitzustellen ...

Radial plunger pump

Float operated devices

A float operated device such as a pressure powered pump has a chamber 30 in which a float 32 is movable. The float 32 has a low profile form, having an aspect ratio greater than 2. The float operates a toggle mechanism 46 comprising an input lever 34 and an output lever 48 which are pivotable about spaced pivot locations 38, 50. A spring 54 acts between the input and output levers 34 and 48 to provide the toggling action. The toggle mechanism operates a valve arrangement 62, to admit steam to chamber 30 which closes non-return valve 64 and forces condensate in the chamber out through valve 68. Valve 68 is also opened by the action of the float. The non-return valve has an inclined seat 66 and a valve flap which is pivotably mounted so as to open by hanging vertically in the absence of a pressure difference across the valve.

Device for supplying fuel to an energy production installation of a ship

Fan and blower unit having the same

Apparatus and method for tuning pump speed

Apparatus and method for tuning pump speed

An apparatus for tuning pump speed at an optimal or desired speed using an automated method is disclosed. The apparatus includes a vacuum pump connected to a chamber for evacuating gas from the chamber. A sensor measures one or more characteristics, such as pressure, of the gas in the chamber. The measured characteristic is compared to a predetermined value. The speed of vacuum pump is adjusted based on the comparison until it falls in a desired range.

Impeller wheel.

Reciprocating pump.

Pressure relief arrangement for a pump

Impeller wheel

Reciprocating pump

Pressure relief arrangement for a pump.

Pump intake device

IMPELLER

DOSAGE PUMP WITH INTEGRATED OPENING

AXIAL BLOWER

COOLING DEVICE FOR PISTON ENGINES

ROTOR FOR A FLUID-FLOW MACHINE AND A FLUID-FLOW MACHINE

LIFTING PISTON PUMP AND CHECK VALVE

BY MEANS OF MAGNETIC FIELD STRENGTH OPERATION MEHRACHSIGE FANS AND POWER TRANSMISSION SYSTEM FOR IT

Vibration dampening system for a reciprocating compressor with a linear motor

Peristaltic hose pump

Method for controlling a compressor

Method for controlling a compressor that contains a compressor element, characterised in that during a transition from full load or partial load to zero load, a process A is followed that comprises the following steps:- the reduction of the inlet pressure; - the reduction of the speed and/or the drive torque, and/or during a transition from zero load to partial load or full load, a process B is followed that comprises the following steps: - increase of the speed or drive; and - the increase of the inlet pressure.

Impeller having cylindrical vanes

The present invention relates to an impeller having cylindrical vanes, in which multiple hollow vanes are arranged into a spiral in one direction from the center of a base plate, such that the fluid introduced into a hollow housing flows into a water inlet port by means of the rotation of the impeller, and then the introduced fluid flows into inlet ports of the multiple vanes formed at the center of the base plate and is discharged through outlet ports of the multiple vanes, thereby minimizing friction between the impeller and the fluid and maximizing the head of a pump and efficiency. In addition, the impeller of the present invention is configured such that an outer surface of any one vane from among the plurality of vanes is spaced apart from an outer surface of another vane adjacent to said any one vane, so as to minimize the friction loss of the fluid flowing in a path other than the inlet ports. The base plate, the vanes, and the inlet ports are integrally formed so as to provide ...

MIX-IN STRUCTURE FOR GAS OR THE LIKE IN PRESSURIZATION CENTRIFUGAL PUMP

Centrifugal blower

A centrifugal blower configured to minimize a reduction in the fan efficiency caused by a leakage flow at the gap between the bell mouth and the shroud. A centrifugal blower (51) is provided with an impeller (23) and a bell mouth (25). The bell mouth (25) has wall sections (27) which are arranged on the outer peripheral surface (25s) thereof in the circumferential direction at predetermined intervals and which are upstanding from the outer peripheral surface (25s). The wall sections (27) extend along the outer peripheral surface (25s) from the front (F) side to the rear (R) side in the axial direction (A) so as to be substantially parallel to the axial direction (A) and to the radial direction of the bell mouth (25).

MICROPUMP

A pump including a stator (8), a rotor (6) comprising an axial extension (14,16) slidably and rotatably mounted at least partially in a rotor chamber (10) of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet (12), that open and close as. a function of at least the angular displacement of the rotor. The pump comprises interacting cam elements (42,44) on the rotor and stator and biasing means acting on the rotor for applying a force on the rotor in the axial direction of the stator cam element.

METHOD FOR DETERMINING HYDRAULIC PARAMETERS IN A DISPLACEMENT PUMP

The invention relates to a method for determining hydraulic parameters in a displacement pump, wherein the displacement pump has a movable displacement element, which bounds the metering chamber, which is connected to a suction and pressure line by means of valves, wherein a drive is provided for the oscillating motion of the displacement element. In order that pumped fluid can be alternately sucked into the metering chamber via the suction line and pressed from the metering chamber via the pressure line by means of an oscillating motion of the displacement element, a physical model having hydraulic parameters according to the invention is established for the hydraulic system, the force exerted by the displacement element on the fluid located in the metering chamber or the pressure in the metering chamber is determined and the position of the displacement element is determined, and at least one hydraulic parameter is calculated by means of an optimization calculation.

METHOD FOR DETERMINING A PHYSICAL VARIABLE IN A POSITIVE DISPLACEMENT PUMP

The present invention relates to a method for determining at least one physical variable in a positive displacement pump, wherein the positive displacement pump has a movable displacer element which delimits the metering chamber which is connected via valves to a suction and pressure line, with the result that delivery fluid can alternately be sucked into the metering chamber via the suction line and can be pressed out of the metering chamber via the pressure line as a result of an oscillating movement of the displacer element, wherein a drive is provided for the oscillating movement of the displacer element.

PUMP INTAKE DEVICE

A pump intake device comprising a main body which includes a side wall section having an inner side and an outer side, an intake section extending from the outer side of the side wall section and an intake passage extending through the intake section, the intake passage having an inner surface and an entry end and an exit end with a central axis extending between the entry and exit ends, a first portion of the inner surface having one or more first guides thereon for directing fluid passing through the intake passage so that in use said fluid leaves the exit end at the first portion with an exit angle which is inclined relative to the central axis.

PUMP DEVICE AND CONTROL METHOD THEREFOR

... [Object] To provide a pump device capable of stabilizing a suction flow rate irrespective of an outside air temperature and a control method therefor. [Solving Means] The control method for a pump device includes: outputting a drive signal for driving a motor at a rotation speed for discharging gas of the reference flow rate from the suction port of the pump main body; measuring a temperature of gas discharged from the suction port or a temperature of the pump main body by a temperature sensor attached to the pump main body; calculating an actual flow rate of the gas discharged from the suction port based on a temperature signal relating to the temperature of the gas included in an output of the temperature sensor; and correcting the drive signal such that the actual flow rate equals the reference flow rate and outputting the corrected drive signal to the motor.

LIQUID DISPENSING PUMP HAVING WATER SEAL

A manually actuated pump dispenser has a water seal for maintaining the container vent ports sealed closed during pumping until at or near the end of the pressure stroke whereupon a vent path through which only air is permitted travel into the container, is open as the path is shielded against water entering the vent path when pumping in a wet environment as when dispensing hair shampoo or hair conditioner. In a plunger lock-down position of shipping and storage, leakage of product through the vent ports is substantially avoided during a superatmospheric condition within the container.

PUMP INTAKE DEVICE

Back pressure control apparatus of compressor

Pumphjul

Thin-type fan

Injector

An injector is disclosed, in which the change in the internal pressure of each chamber is relaxed when a pressure application mechanism is reciprocating thereby to lengthen the service life of the component parts including a diaphragm portion. The injector (I) comprises a body B including therein a first outer inlet portion (13) for a pressured fluid (F), a first outer outlet portion (14), a connecting inlet portion (21) communicating with the first outer inlet portion or the first outer outlet portion, a connecting outlet portion (22), a second outer inlet portion (31) communicating with the connecting inlet portion or the connecting outlet portion, a second outer outlet portion (32), a first chamber (40), a second chamber (50), intake check valves (61, 71), discharge check valves (66, 76), a pressure application mechanism (80), a working fluid influx/outlet portion (90) for causing the working fluid (A) for reciprocating the pressure application mechanism to flow into or from at least ...

Apparatus and method for controlling operation of compressor

An apparatus for controlling an operation of a compressor includes a controller for generating a control signal for selecting an operation mode of a compressor according to an operation load of the compressor; a first switching unit connected to a motor including a main coil and a sub-coil, and selecting only the main coil or both the main coil and the sub-coil according to the control signal; first and second capacitors electrically connected to the first switching unit; and a second switching unit connected to the first capacitor and selectively connecting the first capacitor in parallel to the second capacitor according to the control signal.

VARIABLE CAPACITY COMPRESSOR

A variable capacity compressor includes a rotating member 21 fixed to a drive shaft 10 so as to rotate with the drive shaft 10, a sleeve 22 axially slidably attached to the drive shaft 10, a tilting member 24 tiltably attached to the sleeve 22 by a pivot pin 61, a linkage mechanism 40 connecting the rotating member 21 with the tilting member 24 and configured to transfer a rotary torque of the rotating member 21 to the tilting member 24 as allowing the tilting member to be tiltable, and a tilting guide face 22c formed on the sleeve 22 and a tilting guide face 25d formed on the tilting member 24 which are formed as planes orthogonal to the pivot pin 61 and are configured to slidingly contact one another.

Structure for oil recovery in a compressor

In a structure for oil recovery in a compressor for separating oil from refrigerant and supplying the separated oil into the compressor through an oil supply passage, the compressor includes a rotary shaft, a cylinder block having a plural cylinder bores, a cam member rotated integrally with the rotary shaft, a piston received in each cylinder bore being operable in conjunction with the rotation of the rotary shaft through the cam member, a suction port for allowing the refrigerant to be drawn from a suction-pressure region of the compressor to the corresponding cylinder bore, a discharge port for allowing the refrigerant to be discharged from the corresponding cylinder bore to a discharge-pressure region of the compressor, and a flexible reed valve for opening and closing one of the suction port and the discharge port. The oil supply passage is opened and closed in accordance with motion of the reed valve.

Variable displacement swash plate type compressor with smooth inclined moving feature

A variable displacement swash plate type compressor with a smooth inclined moving feature which includes a cylinder block having a plurality of cylinder bores, a front housing disposed at a front end of the cylinder block to form a swash plate chamber, a drive shaft rotatably supported in the cylinder block, a lug plate disposed in the swash plate chamber of the front housing and fixedly installed to the drive shaft, a rear housing disposed at a rear end of the cylinder block and having a suction chamber and a discharge chamber in fluid communication with the cylinder bores through a suction valve and a discharge valve, a swash plate rotated by the lug plate and installed to have a variable inclination angle, a spring supported between the lug plate and the swash plate, and pistons slidably engaged with the swash plate to be reciprocated in the cylinder bores.

REFRIGERANT GAS COMPRESSOR

A refrigerant gas compressor includes a cylinder block formed with plural cylinder bores, a first housing disposed at the one end of the cylinder block, a second housing disposed at the other end of the cylinder block, a drive shaft supported by the cylinder block and one of the housings, a crank chamber formed in one of the housings, a suction chamber and a discharge chamber formed in one of the housings, a valve plate assembly disposed between the cylinder block and at least one of the housings, a stepped portion formed adjacent to the valve plate assembly to receive a part of the valve plate assembly. A storage chamber is provided for reserving therein oil separated from refrigerant gas. An oil groove is formed by the stepped portion and the valve plate assembly and connecting the storage chamber with one of the crank chamber and the suction chamber.

Centrifugal compressor diffuser vanelet

A system, in certain embodiments, includes a centrifugal compressor diffuser including a flow path having a first surface and a second surface defining opposite axial sides of the flow path. The centrifugal compressor diffuser also includes multiple vanes extending from the first surface to the second surface of the flow path. A first profile of each vane varies along an axial direction. The centrifugal compressor diffuser further includes multiple vanelets extending from the first surface toward the second surface in the axial direction. A first axial extent of each vanelet is less than a second axial extent of the flow path. In addition, a second profile of each vanelet varies along the axial direction and/or the vanelets form a non-periodic pattern around a circumference of the flow path.

СПОСОБ УПРАВЛЕНИЯ ДОЗИРУЮЩИМ НАСОСОМ И/ИЛИ РЕГУЛИРОВАНИЯ ДОЗИРУЮЩЕГО НАСОСА

Изобретение относится к способу управления дозирующим насосом и/или регулирования дозирующего насоса, содержащего приводной электродвигатель, имеющий вал, приводимый в движение электродвигателем, и вытесняющий элемент, расположенный в дозирующей головке, в котором вращательное движение вала преобразуется в колебательное движение вытесняющего элемента. Для создания способа управления и/или регулирования дозирующего насоса измеряют по меньшей мере один рабочий параметр электродвигателя, предпочтительно напряжение U или ток I в электродвигателе. Производят расчет по меньшей мере одного регулируемого параметра исходя из измеренных рабочих параметров. Регулируемый параметр, представляющий собой фактический крутящий момент Mэлектродвигателя и фактический магнитный поток Фв электродвигателе, сравнивают с заданным ориентирующим параметром, представляющим собой по меньшей мере одну заданную стандартную функцию, выдают сигнал сравнения, характеризующий степень подобия между регулируемым параметром ...

НАСОС ВЫСОКОГО ДАВЛЕНИЯ ДЛЯ УСТРОЙСТВА ВПРЫСКИВАНИЯ ТОПЛИВА В ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателестроению, в частности к топливной аппаратуре двигателей внутреннего сгорания. Изобретение позволяет повысить износостойкость трущихся поверхностей в зоне контакта между кольцом и, по меньшей мере, одним, по меньшей мере, опосредованно взаимодействующим с ним плунжером. Насос высокого давления для устройства впрыскивания топлива в двигатель внутреннего сгорания содержит приводимый во вращение приводной вал с выполненным эксцентрично относительно оси его вращения участком, на котором с возможностью вращения установлено кольцо, и, по меньшей мере, один насосный элемент, имеющий приводимый, по меньшей мере, опосредованно приводным валом через кольцо в возвратно-поступательное движение плунжер, который, по меньшей мере, опосредованно упирается в кольцо. Кольцо, по меньшей мере, на своей обращенной от эксцентрического участка приводного вала наружной поверхности, по меньшей мере, на том ее участке, на котором, по меньшей мере один плунжер, по меньшей мере, опосредованно ...

СПОСОБ ЭКСПЛУАТАЦИИ ПИТАЮЩЕГО НАСОСА, КОТОРЫЙ РАБОТАЕТ В ПУЛЬСИРУЮЩЕМ РЕЖИМЕ

Изобретение относится к способу эксплуатации питающего насоса (1), который работает в пульсирующем режиме, в подающем устройстве (2) для подачи жидкого рабочего вещества (3) для автомобиля (4) в направлении (5) подачи. Питающий насос (1) имеет питающий поршень (6) и катушку (7) возбуждения для привода питающего поршня (6), а подающее устройство (2) имеет датчик (8) давления ниже по потоку от питающего насоса (1) в направлении (5) подачи. В способе сначала к катушке (7) возбуждения прикладывают профиль (9) напряжения. Затем, в соответствии с профилем (9) напряжения выполняют ход (10) подачи питающего поршня (6). В этой связи контролируют профиль (11) давления в направлении (5) подачи ниже по потоку от питающего насоса (1). Затем, оценивают профиль (11) давления. Затем, адаптируют профиль (9) напряжения в зависимости по меньшей мере от одного характеристического свойства профиля (11) давления таким образом, чтобы при достижении пика давления питающий поршень больше не ускорялся. Экономится ...

НАСОС ВЫСОКОГО ДАВЛЕНИЯ ДЛЯ УСТРОЙСТВА ВПРЫСКИВАНИЯ ТОПЛИВА В ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Насос высокого давления для устройства впрыскивания топлива в двигатель внутреннего сгорания, содержащий приводимый во вращение приводной вал (12) с выполненным эксцентрично относительно оси (13) его вращения участком (26), на котором с возможностью вращения установлено кольцо (28), и по меньшей мере один насосный элемент (32), имеющий приводимый по меньшей мере опосредованно приводным валом (12) через кольцо (28) в возвратно-поступательное движение плунжер (34), который по меньшей мере опосредованно упирается в кольцо (28), отличающийся тем, что кольцо (28) по меньшей мере на своей обращенной от эксцентрического участка (26) приводного вала наружной поверхности по меньшей мере на том ее участке (29), на котором по меньшей мере один плунжер (34) по меньшей мере опосредованно упирается в это кольцо (28), снабжено покрытием (56) из антифрикционного лака. 2. Насос высокого давления по п.1, отличающийся тем, что кольцо (28) имеет на своей наружной боковой поверхности по меньшей мере одну ...

СПОСОБ УПРАВЛЕНИЯ УСТАНОВКОЙ ДЛЯ СЖАТОГО ВОЗДУХА, УСТАНОВКА ДЛЯ СЖАТОГО ВОЗДУХА И КОНТРОЛЛЕР ДЛЯ ОСУЩЕСТВЛЕНИЯ ТАКОГО СПОСОБА

... 1. Способ управления модулем (1) для сжатого воздуха, содержащим одну или несколько сетей сжатого воздуха, а также множество сообщающихся контроллеров (6, 9, 13, 23, 24, 25 или 26) для управления компонентами, которые составляют часть упомянутой сети сжатого воздуха, отличающийся тем, что управление указанными компонентами выполняют так, что ни один из контроллеров (6, 9, 13, 23, 24, 25 или 26) не определяет рабочие условия ни одного из компонентов, управляемых другими контроллерами. ! 2. Способ по п.1, отличающийся тем, что упомянутые компоненты модуля (1) для сжатого воздуха состоят, по меньшей мере, из ряда следующих компонентов: пользователь сжатого воздуха, источник сжатого воздуха, устройство обработки сжатого воздуха или клапан сжатого воздуха. ! 3. Способ по п.1 или 2, отличающийся тем, что он является последовательным, другими словами, несколько из упомянутых управляемых компонентов модуля (1) для сжатого воздуха установлены в виде заданной последовательности и их включают или ...

РАДИАЛЬНОЕ ЛОПАСТНОЕ КОЛЕСО

... 1. Радиальное лопастное колесо, содержащее: ! первую и вторую концевые пластины (1, 1', 2, 2'), расположенные на соответствующем расстоянии друг от друга, при этом первая концевая пластина (1, 1') имеет, отверстие (6), которое обеспечивает возможность притока к радиальному лопастному колесу, и ! лопасти (3), расположенные между первой и второй концевой пластиной (1, 1', 2, 2') и соединенные с первой и второй концевой пластиной, посредством чего внешние края (7) лопастей, а также первая и вторая концевая пластина (1, 1', 2, 2') разграничивают отверстия, обеспечивающие возможность оттока с радиального лопастного колеса, отличающееся тем, что радиальное лопастное колесо содержит: ! внутреннюю часть с лопастями, в которой искривление (R1) лопастей (3) сформировано так, чтобы доставлять энергию движения к переносящимся частицам во время вращения радиального лопастного колеса, и ! внешнюю часть с лопастями, в которой искривление (R2) лопастей (3) сформировано так, чтобы доставлять энергию движения ...

ШЕСТЕРЕНЧАТЫЙ НАСОС

... 1. Шестеренчатый насос с несколькими входящими в зубчатое зацепление друг с другом для подачи среды зубчатыми колесами (3, 4), которые удерживаются в корпусе (1) насоса с возможностью вращения, и с насосным валом (5) для приведения в движение одного из зубчатых колес (4), причем насосный вал (5) через муфтовый конец (5.1) выполнен с возможностью соединения с приводом, отличающийся тем, что на окружности насосного вала (5) расположено тормозное кольцо (11), которое по меньшей мере одной тормозной поверхностью (11.1) воздействует на фрикционную поверхность (5.3) насосного вала (5) или на фрикционную поверхность корпуса (1) насоса.2. Шестеренчатый насос по п.1, отличающийся тем, что тормозное кольцо (11) удерживается в корпусе (1) насоса, предпочтительно в корпусе (1.4) вала, без возможности поворота, и что тормозная поверхность (11.1) выполнена на внутреннем диаметре тормозного кольца (11).3. Шестеренчатый насос по п.2, отличающийся тем, что фрикционная поверхность (5.3) насосного вала (5 ...

МЕМБРАННЫЙ НАСОС, СНАБЖЕННЫЙ КЛАПАНОМ ПОПОЛНЕНИЯ УТЕЧЕК С ИНЕРЦИОННЫМ УПРАВЛЕНИЕМ

... 1. Мембранный насос, включающий в себя отделенную мембраной (1) от гидравлической камеры (8) нагнетательную камеру (9), при этом нагнетательная камера (9) соединена соответственно с всасывающим присоединением и напорным присоединением, и наполняемая рабочей жидкостью гидравлическая камера (8) может нагружаться пульсирующим давлением рабочей жидкости, при этом гидравлическая камера (8) через клапан (6) пополнения утечек соединена с запасом (15) рабочей жидкости, при этом клапан (6) пополнения утечек имеет замыкающий орган, который выполнен с возможностью совершать возвратно-поступательное движение между закрытым положением, в котором проход клапана закрыт, и открытым положением, в котором проход клапана открыт, и который с помощью нажимного элемента удерживается в закрытом положении, при этом нажимной элемент рассчитан таким образом, что когда давление в гидравлической камере (8) меньше, чем установочное давление p, замыкающий орган (16) перемещается в направлении открытого положения, отличающийся ...

Elektronisch kompensierte Servosteuerung des Druckverlaufes einer Pumpe

Klammerverbindung zur Drehmomenteneinstellung und Packung für einen Kolben

LAUFRAD

MIKROPUMPE

Refrigerant compressor for refrigerators

The compressor has at least one flexible sheet outlet valve supported by a holding plate. The flexible valve sheet (88) covers the outlet (86b) aperture of the compressor body until it is deformed open under pressure. A support sheet (90), and the valve sheet, are clamped by a casing part (92i) over the sections (90a) and (88a). A projection (92k) limits the distortion of the support plate under pressure.

Klimakompressor mit Reibelement im Zylinder

Hierin ist ein Klimakompressor für ein Fahrzeug offenbart, der ein Reibelement aufweist, das auswechselbar an der Innenwand der Zylinderbohrung befestigt ist, in welcher der Kolben hin- und hergeht, so dass er mit dem Reibelement in Kontakt kommt. Der vorliegende Klimakompressor kann außerdem ein Federelement aufweisen, das zwischen der äußeren Umfangsfläche des Reibelements und der Innenwandung der Zylinderbohrung angeordnet ist. Die vorliegende Erfindung liefert einen Vorteil, weil es möglich ist, abgenutzte Zylinder einfach durch Auswechseln von Reibelementen aufzuarbeiten.

System und Verfahren zur Regelung einer Micropumpe

Hubkolbenkompressor mit einer Kolbenführung

Seal device for water pump, rotation supporting device for water pump, and assembly method for water pump

An assembly method for a water pump, comprising the steps of allowing the tip edge of the second seal lip (23) of an elastic material (21) forming a seal ring (13) to come into slidable contact with the outer surface of a slinger (14), fixedly fitting the slinger (14) onto a rotating shaft (3a)by pressing the slinger (14) with a pressing jig (28), wherein the shape and dimensions of the pressing jig (28) are restricted so that the amount of deformation of the second seal limp (23) becomes appropriate in the state of the tip face of the pressing jig (28) abutting against the end face of an outer ring (16), whereby an operation to assemble the second seal lips (23) brought into slidable contact with the outer surface of the slinger (14) while properly restricting the amount of deformation thereof can be easily performed by an industrial method.

MICRO PUMP

MOUNTING DEVICE OF A VACCUM PUMP

MICRO PUMP

MICRO PUMP.

A peristaltic pump with a moveable pump head

SEAL DEVICE FOR WATER PUMP, ROTATION SUPPORTING DEVICE FOR WATER PUMP, AND ASSEMBLY METHOD FOR WATER PUMP

Microfluidic membrane pump and valve

Peristaltic hose pump

The present invention relates to a peristaltic hose pump comprising a stator, a rotor, and a rotor drive, wherein the rotor has rolled-up hoses, the position of which can be adjusted in the radial direction via an adjusting device having an adjusting element, and wherein a brake device is provided, and the radial position of the rolled-up hoses can be varied by the interaction of the brake device and the rotor drive.

Compressor end head heating arrangement

A compressor end head (200) for providing a thermal barrier near a mechanical seal includes an inner end head (210) and an outer end head (220). The outer end head (220) includes an opening (221) in the center for enclosing the inner end head (210), an outlet (224) and grooves (225) alongside surfaces radially adjacent the opening (221). The inner end head (210) has an opening (211) in the center, an inlet (213), grooves (212) in the opening (211) for enclosing an end portion of a compressor shaft and a flow path along an outer surface.

Abradable seal with axial offset

A sealing system (200) for a centrifugal compressor includes a stator (220) having a seal housing (230), a seal (223) disposed in the seal housing (230) and having an abradable portion (225) along an inner circumference, a rotor (210) having a plurality of rotor teeth (215) configured to rotate within the inner circumference of the seal (223) and configured to create rub grooves (227) within the abradable portion (225), and a first spring (240) disposed between the stator (220) and the seal (210) and configured to facilitate axial movement of the seal (223) relative to the seal housing (230).

MULTISTAGE PISTON COMPRESSOR

The invention relates to a multistage piston compressor (1) for a gaseous or cryogenically liquefied medium (M) with at least two compressor stages (A; B; C; D), which operatively interact with a shared drive train (4) for purposes of joint powering, wherein each compressor stage (A; B; C; D) exhibits a piston (3A; 3B; 3C; 3D) that is mechanically connected with the drive train (4), and arranged in a compressor cylinder (2A; 2B; 2C; 2D) so that it can longitudinally shift. The object of providing such a multistage compressor in which the compressor stages can be operated independently of each other, and which is improved in terms of wear and energy efficiency, is achieved according to the invention by virtue of the fact that the piston (3A; 3B; 3C; 3D) of the respective compressor stage (A; B; C; D) is connected with a liquid column (9A; 9B; 9C; 9D) of an incompressible liquid situated in the compressor cylinder (2A; 2B; 20; 2D), which converts the piston stroke motion of the piston (3A ...

ABRADABLE SEAL WITH AXIAL OFFSET

A sealing system (200) for a centrifugal compressor includes a stator (220) having a seal housing (230), a seal (223) disposed in the seal housing (230) and having an abradable portion (225) along an inner circumference, a rotor (210) having a plurality of rotor teeth (215) configured to rotate within the inner circumference of the seal (223) and configured to create rub grooves (227) within the abradable portion (225), and a first spring (240) disposed between the stator (220) and the seal (210) and configured to facilitate axial movement of the seal (223) relative to the seal housing (230).

METHOD OF METERING A LIQUID ADDITIVE INTO A LIQUID SILICON-CONTAINING MATERIAL

A method of metering a liquid additive into a liquid silicon-containing material. The method comprises feeding a liquid silicon-containing material through a first rotary gear positive displacement pump causing a driving mechanism connecting the first rotary gear positive displacement pump to a second rotary gear positive displacement pump to rotate. The rotating driving mechanism causes the second rotary gear positive displacement pump to pump a liquid additive at a volume flow rate proportionate to the volume flow rate of the liquid silicon-containing material through the first rotary gear positive displacement pump.

mÉtodo para controle de uma instalaÇço de ar comprimido e um controlador e instalaÇço de ar comprimido para emprego desse mÉtodo

compressor tipo placa bailarina de capacidade variável

cabeçote terminal do compressor e compressor

Drive system for a pulseless positive displacement pump

A drive system for a pump includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull.

Small pump

The invention relates to a mini pump, especially a mini pump capable of gaining the pump outputs of multiple systems from one motor driving system and reducing cost. Two through holes (29A, 29B) are formed on the bottom of diaphragms (24A, 24B); a shaft (27) having an air inducting hole (27a) connected with the through hole is disposed on a swinging body (26) in a protuberant way; hollow mounting bodies (25A, 25B) which are fixed on the back of the diaphragms a protuberant way are combined on the shaft; an air suction valve (28) is disposed on the through hole; output valves (38A, 38B) are disposed in the output holes (36A, 36B) connected to the pump chambers (23A, 23B); diaphragms moves up and down driven by the swing of the swinging body driven by the concomitant motor (6); and the pump is operated. The pump chamber is divided into multiple output systems, each of which has an output hole to gain multiple pump outputs from one motor driving system.

Centrifugal fan and housing thereof

A centrifugal fan has a housing with an axially-defined air inlet and a laterally-defined air outlet. A first barricade is axially and outwardly extended from the periphery of the air inlet to prevent foreign matters entering the air inlet. A second barricade is axially and outwardly extended from a periphery of the air outlet to securely contact a baffle of a system so as to reduce the reflow of air from the air outlet.

WORKING METHOD FOR SENDING PERSLUCHTINSTALLATIE WITH SEVERAL COMPRESSORS, WHEEL BOX THEREBY APPLIES APPLIED, AND PERSLUCHTINSTALLATIE THAT THIS WORKING METHOD.

The manufacturing method of the fan in a fan filter unit

Control Device for a Vehicular Refrigeration, Vehicular Variable Displacement Compressor, and A Control Valve for the Vehicular Variable Displacement Compressor

Provided is a control valve of a vehicular refrigeration circuit, including: an air supply passage for communicating a discharge chamber and a crank chamber with each other; a second rod capable of changing a primary opening which is the degree of opening of the air supply passage; a first bellows which moves while causing a first load F 1 due to a differential pressure DeltaPd between a high discharge pressure PdH and a low discharge pressure PdL to operate the second rod such that the primary opening increases or decreases; a constant pressure valve for maintaining the low discharge pressure PdL in a high pressure chamber communicating with the discharge chamber at a constant correction pressure PdL 0 ; an actuator capable of changing the correction pressure PdL 0 to a predetermined control pressure PdLx due to energization control by a controller; and a second bellows which moves while causing a second load F 2 opposing the first load F 1 with the control pressure PdLx to adjust the ...

НАСОС С КОЛЕСОМ С ДВУСТОРОННИМ ВСАСЫВАНИЕМ, СОЗДАЮЩИЙ ОСЕВОЕ ДАВЛЕНИЕ

Изобретение касается вертикального насоса с двусторонним всасыванием. Насос имеет спускной трубный узел, узел электродвигателя, расположенный на узле подвески и присоединенный к валу (15), спускные отверстия (120, 122), присоединенные к спускному трубному узлу, корпус (12) и колесо (14) с двусторонним всасыванием. Корпус (12) имеет стенку (16) и присоединен к спускным отверстиям (120, 122). Колесо (14) расположено в корпусе (12), присоединено к валу (15) и имеет верхний и нижний бандажи (18, 20) с металлическими ободьями (22, 24). Ободья (22, 24) образуют верхний и нижний кольцевые зазоры (22, 24) между колесом (14) и стенкой (16), препятствующие воздействию рециркуляционного потока (F) из спускных отверстий (120, 122) на бандажи (18, 20), чтобы ослаблять рециркуляцию вторичных потоков в корпусе (12) и изолировать такие потоки, не допуская вибрации бандажей (18, 20). Т.о. уменьшается воздействие нежелательной осевой вибрации на роторную систему насоса. Кольцевые зазоры (22, 24) являются ...

ВОЗДУХОРАСПРЕДЕЛИТЕЛЬНАЯ СИСТЕМА ДЛЯ ПРОМЫШЛЕННЫХ НАСОСОВ

Воздухораспределительная система для рабочего колеса центробежного насоса содержит, по меньшей мере, один канал 36, первое отверстие 40 которого проходит через заднюю сторону 14, а второе отверстие 42 проходит через переднюю сторону 38 рабочего колеса 12. С каждым каналом 36 связаны трубы 44, проходящие от задней стороны 14 рабочего колеса 12. Концы 48 труб 44 ориентированы в направлении 46 вращения рабочего колеса 12. Изобретение направлено на улучшение работы насоса за счет предотвращения износа уплотнительного механизма 16 путем непрерывного удаления воздуха из области расположения уплотнения. 5 н. и 16 з.п. ф-лы, 4 ил.

ЦЕНТРОБЕЖНАЯ ТУРБИНА, СПОСОБ ОПРЕДЕЛЕНИЯ ОСТАВШЕГОСЯ РЕСУРСА ТУРБИНЫ И УСТРОЙСТВО УПРАВЛЕНИЯ РАБОЧИМ КОЛЕСОМ ТУРБИНЫ

... 1. Центробежная турбина, содержащая рабочее колесо, датчик измерения скорости вращения рабочего колеса, датчик определения температуры на выходе рабочего колеса и систему управления с учетом определяемого оставшегося ресурса рабочего колеса посредством математического расчета параметров рабочего колеса, включая его скорость и температуру на выходе, и задаваемого вышеназванным расчетом в виде программного отклика порогового значения оставшегося ресурса. ! 2. Турбина по п.1, в которой датчик скорости выполнен с возможностью измерения скорости вала, на котором размещено рабочее колесо. ! 3. Турбина по п.1, в которой датчик температуры установлен на выходе рабочего колеса. ! 4. Турбина по п.1, в которой расчет основан на методе суммирования циклового отношения Палгрена-Майнера. ! 5. Турбина по п.1, в которой расчет основан на приближении Мэнсона. ! 6. Турбина по п.1, в которой параметры рабочего колеса включают в себя свойства материала, из которого изготовлено рабочее колесо. ! 7. Турбина ...

ДИНАМИЧЕСКАЯ БАЛАНСИРОВКА ОСЕВОГО УСИЛИЯ ДЛЯ ЦЕНТРОБЕЖНЫХ КОМПРЕССОРОВ

... 1. Центробежный компрессор (10), включающий:узел (18) ротора, включающий по меньшей мере одну крыльчатку (16);подшипник (20), связанный с упомянутым узлом (18) ротора, для его удержания с возможностью вращения;статор (18);балансировочный барабан (28), размещенный между упомянутой по меньшей мере одной крыльчаткой (16) и упомянутым подшипником (20);балансировочную камеру (34), заданную по меньшей мере частично внешней стороной упомянутого балансировочного барабана (28), и имеющую соединенную с ней балансировочную линию (32);датчик (42) для измерения параметра, который связан с осевой нагрузкой на упомянутый подшипник (20); иуправляющий клапан (40) для изменения давления в упомянутой балансировочной камере (34) на основе упомянутого измеренного параметра.2. Центробежный компрессор по п.1, также включающий:управляющую логику, выполненную с возможностью приема выходного сигнала упомянутого датчика и управления упомянутым управляющим клапаном в соответствии с заранее заданной функцией.3. Центробежный ...

СПОСОБ РЕГУЛИРОВАНИЯ КОМПРЕССОРА

... 1. Способ регулирования компрессора, включающего в себя один или несколько компрессорных элементов (2, 2А, 2В), каждый из которых имеет вход и выход, отличающийся тем, чтопри переходе от полной или частичной нагрузки к нулевой нагрузке, по меньшей мере, первый вышеупомянутый компрессорный элемент (2, 2А, 2В) регулируют с помощью процесса А, включающего в себя следующие этапы:по меньшей мере, временное уменьшение давления на входе первого компрессорного элемента; ипоследующее, или одновременное, или частично одновременное и частично последующее снижение частоты вращения и/или крутящего момента на валу данного первого компрессорного элемента до более низкого значения или до нуля,и/или при переходе от нулевой нагрузки к частичной или полной нагрузке, по меньшей мере, первый компрессорный элемент (2, 2А, 2В) регулируют с помощью процесса В, включающего в себя следующие этапы:повышение частоты вращения и/или крутящего момента на валу данного первого компрессорного элемента до номинального значения ...

МИКРОНАСОС

... 1. Насос, включающий ротор (6), содержащий участок двигателя (34), первое и второе осевые удлинения (14, 16), имеющие различные диаметры, статор (8), содержащий корпус статора, имеющий роторную камеру (10, 12) для принятия, по меньшей мере, осевых удлинений, и первое и второе уплотнения (18, 20), закрепленные вокруг первого и второго осевых удлинений, причем осевые удлинения оснащены каналами для подачи жидкости, взаимодействующими с соответствующими первым и вторым уплотнениями для создания первого и второго клапанов, которые открывают и закрывают распространение жидкости по соответствующему уплотнению как функцию, по меньшей мере, углового смещения ротора, отличающийся тем, что насосный модуль содержит третье уплотнение, закрепленное вокруг второго осевого удлинения вблизи участка двигателя (34) ротора и ограничивающее выходной участок (12) роторной камеры.2. Насос по п.1, дополнительно содержащий взаимодействующие кулачковые элементы (42, 44) на роторе и статоре и механизм смещения, ...

ВОЗДУХОРАСПРЕДЕЛИТЕЛЬНАЯ СИСТЕМА ДЛЯ ПРОМЫШЛЕННЫХ НАСОСОВ

... 1. Воздухораспределительная система для рабочего колеса центробежного насоса, вращающегося в нормальном направлении вращения и имеющего переднюю сторону и заднюю сторону, содержащая по меньшей мере один канал, имеющий первое отверстие, проходящее через заднюю сторону, и второе отверстие, проходящее через переднюю сторону рабочего колеса, и трубу, связанную с каналом, расположенную у первого отверстия канала и содержащую первый конец, соединенный с каналом, и второй конец с отверстием трубы, ориентированный, по существу, в нормальном направлении вращения рабочего колеса. ! 2. Система по п.1, в которой труба выполнена за одно целое с рабочим колесом. ! 3. Система по п.1 или 2, в которой отверстие трубы снабжено раструбом. ! 4. Система по п.1 или 2, которая содержит множество указанных каналов и связанных с ними труб, причем каналы разнесены и расположены, по существу, по окружности рабочего колеса относительно оси его вращения. ! 5. Система по п.1 или 2, в которой каждая труба включает в ...

Control valve for variable displacement compressor

There is provided a control valve for a variable displacement compressor capable of directly connecting a plunger to a valve rod in a relatively easy way, and realizing an improvement in assemblability, reduction in costs, and the like. A connecting cylinder for directly connecting the plunger to the valve rod is provided. The valve rod is provided with a mushroom-like or flange-like part. The connecting cylinder is provided with an elastic locking piece which, by pushing the mushroom-like or flange-like part into the elastic locking piece, is pushed and opened outward in a radial direction so as for the mushroom-like or flange-like part to pass through the elastic locking piece, and which, after the passing of the mushroom-like or flange-like part, is restored to an original shape due to elasticity which the elastic locking piece has, and locks the mushroom-like or flange-like part.

Scroll compressor

A scroll compressor is provided that may include a fixed scroll having a fixed wrap, an orbiting scroll engaged with the fixed wrap to define a compression chamber, a rotation shaft having a shaft portion eccentrically located with respect to the orbiting scroll, a pin portion located at an end of the shaft portion and having a diameter smaller than a diameter of the shaft portion, and a bearing located at an end of the pin portion, and a drive that drives the rotation shaft. The pin portion may be inserted through one of the fixed scroll or the orbiting scroll, and the orbiting scroll may be rotatably coupled to the bearing.

Compressor end head heating arrangement

A compressor end head for providing a thermal barrier near a mechanical seal includes an inner end head and an outer end head. The outer end head includes an opening in the center for enclosing the inner end head, an outlet and grooves alongside surfaces radially adjacent the opening. The inner end head has an opening in the center, an inlet, grooves in the opening for enclosing an end portion of a compressor shaft and a flow path along an outer surface.

Abradable seal with axial offset

A sealing system for a centrifugal compressor includes a stator having a seal, a seal disposed in the seal housing and having an abradable portion along an inner circumference, a rotor having a plurality of rotor teeth configured to rotate within the inner circumference of the seal and configured to create rub grooves within the abradable portion, and a first spring disposed between the stator and the seal and configured to facilitate axial movement of the seal relative to the seal housing.

Pump device

The purpose of the present invention is to provide a small, light coolant-pump device equipped with a filter, said coolant-pump device not requiring regular maintenance. The present invention is provided with: a positive-displacement pump ( 9 ); a cyclone filter ( 12 ) provided on the intake side of the positive-displacement pump; and a non-positive-displacement pump ( 40 ) provided on the intake side of the cyclone filter ( 12 ). The cyclone filter ( 12 ) contains a primary cyclone ( 20 ) and a secondary cyclone ( 30 ) each provided with a mechanism (outlet ( 20 c and 30 c )) through which separated foreign substances (cutting debris and the like) are expelled. The present invention is set such that the discharge rate of the non-positive-displacement pump ( 40 ) is higher than the discharge rate of the positive-displacement pump ( 9 ). The positive-displacement pump ( 9 ), cyclone filter ( 12 ), and non-positive-displacement pump ( 40 ) are connected in a vertical straight line.

Pump device and method for controlling the same

[Object] To provide a pump device capable of stabilizing a suction flow rate irrespective of an outside air temperature and a control method therefor. [Solving Means] The control method for a pump device includes: outputting a drive signal for driving a motor at a rotation speed for discharging gas of the reference flow rate from the suction port of the pump main body; measuring a temperature of gas discharged from the suction port or a temperature of the pump main body by a temperature sensor attached to the pump main body; calculating an actual flow rate of the gas discharged from the suction port based on a temperature signal relating to the temperature of the gas included in an output of the temperature sensor; and correcting the drive signal such that the actual flow rate equals the reference flow rate and outputting the corrected drive signal to the motor.

Suction damping case

Disclosed is a suction damping case. A refrigerant introduced into the suction damping case flows for a predetermined period of time at reduced pressure and speed, and then is discharged to the outside of the body, so that a damping function can be made. When the suction damping case is coupled to a rear housing, a hook and an embossing prevents the suction damping case from being separated.

Pulseless positive displacement pump and method of pulselessly displacing fluid

A double displacement pump includes an inlet manifold, an outlet manifold, a first fluid cavity between the inlet manifold and the outlet manifold, a second fluid cavity between the inlet manifold and the outlet manifold, and a drive system that includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull.

Air-conditioner compressor for vehicle

A vehicle air-conditioner compressor may include a housing having a front housing section and a rear housing section; a shaft rotatably installed in the housing; a lug fixed at a preset position on the shaft; a swash plate coupled with the lug at one side thereof and rotating together with the lug, a piston connected to the swash plate by a shoe and moved reciprocatingly by the swash plate; a cylinder that accommodates the piston therein, and a pressure-sensing chamber coupled with a rod at the other side of the swash plate, that operates the rod using a pressure provided from a high-pressure chamber of the rear housing.

Microfluidic pump and valve structures and fabrication methods

Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.

Method for Improving Metering Profiles of Displacement Pumps

The invention relates to a method for determining hydraulic parameters in a displacement pump, wherein the displacement pump has a movable displacement element, which bounds the metering chamber, which is connected to a suction and pressure line by means of valves, wherein a drive is provided for the oscillating motion of the displacement element. In order that pumped fluid can be alternately sucked into the metering chamber via the suction line and pressed from the metering chamber via the pressure line by means of an oscillating motion of the displacement element, a physical model having hydraulic parameters according to the invention is established for the hydraulic system, the force exerted by the displacement element on the fluid located in the metering chamber or the pressure in the metering chamber is determined and the position of the displacement element is determined, and at least one hydraulic parameter is calculated by means of an optimization calculation.

Non-pulsation pump

A non-pulsation pump is provided with: a cam mechanism that converts the rotational motion of a shared motor into reciprocal motion having a prescribed phase difference; a plurality of cross heads that make reciprocal motion with a prescribed phase difference through the cam mechanism; and a plurality of reciprocating pumps that are driven with a prescribed phase difference and that include plungers connected to the cross heads, wherein the total discharge flowrate toward a shared discharge pipe is kept constant. This non-pulsation pump includes a preliminary compression step for moving the plungers of the reciprocating pumps to a discharge side by very small amounts before a discharging step but after a suction step, and has a stroke adjustment mechanism for adjusting the effective stroke length of the plunger in the preliminary compression step. Thus, generation of pulsation can be suppressed even when the set pressure changes.

Miniature pneumatic device

A miniature pneumatic device includes a miniature fluid control device and a miniature valve device. The miniature fluid control device includes a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate. A first chamber is formed between the resonance plate and the piezoelectric actuator. After a gas is fed into the gas inlet plate, the gas is transferred to the first chamber through the resonance plate and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve device includes a valve plate and a gas outlet plate. After the gas is transferred from the miniature fluid control device to the miniature valve device, the valve opening of the valve plate is correspondingly opened or closed and the gas is transferred in one direction. Consequently, a pressure-collecting operation or a pressure-releasing operation is selectively performed.

Cartridge style ball check for positive displacement pump

A check valve assembly includes a housing extending axially along a center axis of the check valve assembly from a first end to a second end. The housing can include an opening disposed at the first end and an outlet disposed at the second end. A seat is disposed in the opening and connected to the tubular housing. The seat includes an inlet extending axially through the seat. A ball is disposed inside the tubular housing and disposed axially between the seat and the outlet. The ball is larger in diameter than the inlet. A ball guide is disposed inside the tubular housing and is disposed axially between the ball and the outlet. A spring is disposed inside the tubular housing and disposed axially between the ball guide and the outlet. The spring is compressed between the ball guide and the outlet.

Modular fluid-driven pump and related methods

A fluid pump includes a pump body enclosing a first cavity and a second cavity, a first flexible member disposed within the first cavity, a second flexible member disposed within the second cavity, and a drive shaft extending between and attached to each of the first flexible member and the second flexible member. The drive shaft is configured to slide back and forth within the pump body. The pump also includes a first shift valve and a second shift valve disposed between the first flexible member and the second flexible member, operatively coupled to deliver a drive fluid to drive fluid chambers in alternating sequence. Some fluid pumps disclosed herein include a housing defining a modular-receiving cavity and a modular insert secured within the modular-receiving cavity by an interference fit. Methods of manufacturing and using fluid pumps are also disclosed.

Supervised proportional metering device and methods for monitoring a metering pump

Disclosed is a monitored proportional metering device including a liquid metering pump having an inlet, an outlet, a suction nozzle, and a mechanism for adjusting the flow in the nozzle. The metering device is also includes a detection assembly, the assembly including at least a unit for detecting the pressure variation in the nozzle, which unit is arranged between the first suction valve and the mixing chamber, a water meter at the inlet, a probe for measuring the level in the container of material to be suctioned, a unit for determining the position of the mechanism for adjusting the volume to be suctioned, and a man/machine interface for processing, recording, and displaying the data from the detection unit. Also disclosed are methods for monitoring a metering pump implementing the proportional metering device.

Micro pump device

There is provided a micro pump device including a micro pump, and a housing receiving the micro pump and provided with a pipe connection port.

Pump device

A pump device includes a variable capacity first pump, a tilt actuator that controls a tilt angle of a swash plate of the first pump in accordance with the control pressure, a regulator that regulates the control pressure in accordance with a front-rear differential pressure of a control valve, a fixed capacity second pump driven by the same drive source as the first pump, the control actuator that operates in accordance with the front-rear differential pressure a resistor so as to drive the regulator to reduce the control pressure in response to an increase in the front-rear differential pressure of the resistor, an auxiliary passage that leads an auxiliary pressure to the control actuator, the auxiliary pressure acting on the control actuator against a upstream pressure of the resistor, and a switch valve that switches between connecting and shutoff the auxiliary passage.

Membrane pump

A pump comprising a pump body defining a circulation space for circulation of fluid according to a direction of circulation from an entry orifice of the circulation space to an output orifice of the circulation space; a membrane retained in the circulation space substantially parallel to the direction of circulation; and an actuating device adapted to vibrate the membrane in a direction substantially perpendicular to the direction of circulation, wherein the membrane comprises a material or a protective coating having a polymer organic matrix with a Young's modulus in a range of between 100 MPa and 10 GPa.

Piezoelectric-driven diaphragm pump

압전구동 격막펌프는 구동격막(12) 및 제1 하우징(11)을 구비한 구동유닛(1), 피동막(241) 및 제2 하우징(21)을 구비한 대체가능한 피동유닛(2), 및 상기 피동유닛(2)을 상기 구동유닛(1)에 고정하기위한 고정유닛(3)으로 구성된다. 구동격막(12)의 변위가 피동막(241)으로 전달되는 구동격막(12)의 진동전달면(14) 및 구동격막의 변위가 전달되는 피동막(241)의 진동피전달면(241a)은 제2 하우징(21)을 향하는 제1 하우징(11)의 참조면(11b)에 평행하지 않으며, 구동격막(12)의 진동전달면(14b)은 피동막(241)의 진동피전달면(241a) 전부와 접촉한다. 이에 의해, 구동격막(12)의 변위는 효율적으로 피동막(241)에 전달되어서, 펌프실(25)의 용량은 크게 변화될 수 있다. The piezoelectric driving diaphragm pump comprises a drive unit 1 having a drive diaphragm 12 and a first housing 11, a replaceable driven unit 2 having a driven membrane 241 and a second housing 21, and It consists of a fixing unit (3) for fixing the driven unit (2) to the drive unit (1). The vibration transfer surface 14 of the driving diaphragm 12 in which the displacement of the driving diaphragm 12 is transmitted to the driven membrane 241 and the vibration transfer surface 241a of the driven membrane 241 in which the displacement of the driving diaphragm are transmitted are formed. 2 Not parallel to the reference surface 11b of the first housing 11 facing the housing 21, the vibration transmission surface 14b of the driving diaphragm 12 is the vibration transmission surface 241a of the driven membrane 241 as a whole. Contact with. As a result, the displacement of the driving diaphragm 12 is transmitted to the driven membrane 241 efficiently, so that the capacity of the pump chamber 25 can be greatly changed. 압전구동, 격막펌프, 구동격막, 진동전달면, 참조면 Piezoelectric drive, diaphragm pump, drive diaphragm, vibration transmission surface, reference surface

Microfluidic pump and valve structures and fabrication methods

Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.

System and method for stability control in a centrifugal compressor

A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability control algorithm can adjust the position of a diffuser ring in the variable geometry diffuser in response to the detection of a surge condition or a stall condition. In addition, the diffuser ring in the variable geometry diffuser can be adjusted to determine an optimal position of the diffuser ring. The stability control algorithm can also be used to open a hot gas bypass valve in response to the detection of continued surge conditions.

Control system and method for reciprocating compressors

The present invention relates to a control system for hermetic cooling compressor, which includes a reciprocating compressor (3) and an electronic control (2) for the reciprocating compressor (3), the electronic control (2) being configured for, after commanding the turning off of the reciprocating compressor (3), detecting whether the turn velocity (23) of the turning axle (10) is below a predefined velocity level, and then applying a braking torque (36) that causes deceleration of the turning axle (10) before completing the next turn of the turning axle (10), in case the turn velocity (23) detected is below the velocity level (34).

Micro membrane pump

유체를 이동시키는 마이크로 멤브레인 펌프가 개시된다. 개시된 본 발명에 의한 마이크로 멤브레인 펌프는, 유체 유입실 및 유체 유출실로 구획된 펌프 하우징, 펌프 하우징에 설치되며, 상기 유체 유입실에 대응하는 다수의 중간유입개구 및 상기 유체 유출실에 대응하는 다수의 중간유출개구가 형성된 벨브 플레이트와, 상기 중간유입/출개구에 각각 설치되는 유입/출 체크벨브를 갖춘 벨브조립체, 벨브조립체와의 사이에 소정의 펌프챔버가 형성되도록 상기 펌프 하우징에 설치되며, 제 1 위치 및 제 2 위치 사이로 이동 가능한 멤브레인, 멤브레인을 제 1 위치 및 제 2 위치로 구동시키는 엑추에이터를 포함하는 것를 특징으로 한다. A micromembrane pump for moving a fluid is disclosed. The micro-membrane pump according to the present invention is installed in a pump housing, a pump housing partitioned into a fluid inlet chamber and a fluid outlet chamber, a plurality of intermediate inlet openings corresponding to the fluid inlet chamber, and a plurality of corresponding to the fluid outlet chamber. A valve assembly having an intermediate outlet opening, a valve assembly having an inlet / outlet check valve installed at each of the intermediate inlet / outlets, and a valve assembly formed in the pump housing so as to form a predetermined pump chamber; And a membrane movable between the first position and the second position, and an actuator for driving the membrane to the first position and the second position. 마이크로 멤브레인, 펌프, 엑추에이터, 체크벨브, 유량 Micro Membrane, Pump, Actuator, Check Valve, Flow Rate

System and method of determining centrifugal turbomachinery remaining life

A centrifugal turbomachine includes an impeller and a speed sensor arranged to detect a speed associated with an impeller speed. A temperature sensor is arranged to detect a temperature associated with an impeller exit temperature. A controls system has impeller parameters, which includes the impeller speed and exit temperature. A calculation methodology is used to mathematically manipulate the impeller parameters to determine a remaining life of the impeller. A program response, such as a warning indication, is triggered by the control system in response to the remaining life reaching a threshold. The controls system monitors the speed and temperature of the impeller. The controls system internally calculates the remaining life based upon the speed and the temperature. In one example, a change in remaining life is calculated in response to a change in speed that results in an impeller stress that exceeds an endurance strength for the impeller.

System and method of determining centrifugal turbomachinery remaining life

A centrifugal turbomachine includes an impeller and a speed sensor arranged to detect a speed associated with an impeller speed. A temperature sensor is arranged to detect a temperature associated with an impeller exit temperature. A controls system has impeller parameters, which includes the impeller speed and exit temperature. A calculation methodology is used to mathematically manipulate the impeller parameters to determine a remaining life of the impeller. A program response, such as a warning indication, is triggered by the control system in response to the remaining life reaching a threshold. The controls system monitors the speed and temperature of the impeller. The controls system internally calculates the remaining life based upon the speed and the temperature. In one example, a change in remaining life is calculated in response to a change in speed that results in an impeller stress that exceeds an endurance strength for the impeller.

Discharge valve assembly

본 발명은 토출밸브 조립체에 관한 것으로, 본 발명은 피스톤이 삽입되어 직선 왕복운동을 하는 실린더의 선단면에 토출공간을 구비하여 고정 설치하는 토출커버와, 실린더의 선단면을 착탈하면서 개폐하도록 상기 토출커버의 내측에 배치하는 토출밸브와, 토출밸브의 압력배면과 이에 대향하는 토출커버의 일측면에 양측 단을 각각 고정하여 상기 토출밸브를 탄력적으로 지지하는 제1 밸브스프링과, 토출밸브의 압력배면 쪽에 배치하여 토출밸브가 일정정도 열린 후에 얹혀져 함께 열리는 밸브가이드와, 밸브가이드의 압력배면과 이에 대향하는 토출커버의 일측면에 양측 단을 각각 고정하여 상기 밸브가이드를 탄력적으로 지지하는 제2 밸브스프링으로 구성함으로써, 상기 밸브부재의 열림시에는 약탄성을 갖는 탄성부재에 의해 지지되어 빠르게 열리는 반면 닫힘시에는 약탄성을 갖는 탄성부재는 물론 강탄성을 갖는 또다른 탄성부재의 합력에 의해 빠르게 닫혀 결국 밸브부재의 개폐동작이 신속하게 진행되면서 효율이 현저하게 상승된다. The present invention relates to a discharge valve assembly, the present invention provides a discharge cover having a discharge space fixed to the front end surface of the cylinder in which the piston is inserted and linear reciprocating movement, and the discharge to open and close the opening and closing the front end surface of the cylinder A discharge valve disposed inside the cover, a first valve spring for resiliently supporting the discharge valve by fixing both ends at a pressure back side of the discharge valve and one side of the discharge cover opposite thereto, and a pressure back side of the discharge valve A second valve spring which is arranged on the side to fix the valve guides by fixing both ends of the valve guide and the valve guide which are placed and opened together after being opened to a certain degree and on one side of the discharge cover opposite to the pressure back of the valve guide. When the valve member is opened, it is supported by an elastic member having weak elasticity and opened rapidly. On the other hand, when the door is closed, it is quickly closed by the force of the elastic member having weak elasticity as well as another elastic member having strong elasticity, and thus the efficiency of the valve member is rapidly increased as the opening and closing operation of the valve member proceeds quickly.

Left and right turning control device electric fan

본 발명은 사용자의 기호에 맞게 선회각도가 조절 가능하도록 헤드부의 좌, 우 선회각도 조절장치 기능을 가진 선풍기에 관한 것이다. 본 발명은 회전동력을 발생하는 팬모터(20)와 웜(30) 및 웜기어(31)의 회전력을 편심축(300)에 전달하기 위하여 구동기어(400)와 치물림 되어지는 종동기어(500)와, 작동부(200) 및 조절부(100)를 팬모터(20) 하우징 후방에 위치하기 위한 지지축(501)과, 지지축(501)에 축 결합되어 스프링(127)과 강구(123)에 의하여 위치 제어되는 조작부재(122) 및 하우징(110)을 포함하는 조절부(100) 및 조작부재(122)와 축 결합되어 조작손잡이(121)의 회전운동을 작동부재(240)에 직선운동으로 변환시키는 조절유닛(230) 및 지지부(260)를 포함하는 작동부(200)를 포함하여 구성된다. 이와 같은 구성을 가지는 본 발명은 불필요한 곳의 송풍을 제한하여 송풍효율이 증가하는 이점이 있다. The present invention relates to a fan having a function of adjusting the left and right turning angle of the head portion to adjust the turning angle according to the user's preference. According to the present invention, the driven gear 500 being meshed with the drive gear 400 to transmit the rotational force of the fan motor 20 and the worm 30 and the worm gear 31 to generate the rotational power to the eccentric shaft 300. And, the support shaft 501 for positioning the operating unit 200 and the adjusting unit 100 in the rear of the fan motor 20 housing, the shaft is coupled to the support shaft 501 spring 127 and steel balls 123 The rotational movement of the manipulation handle 121 is linearly coupled to the control member 100 and the manipulation member 122 including the manipulation member 122 and the housing 110, which are controlled by the position, to the operating member 240. It is configured to include an operating unit 200 including a control unit 230 and the support 260 to convert to. The present invention having such a configuration has the advantage of increasing the blowing efficiency by limiting the blowing in the unnecessary place.

Peristaltic pump with a moveable pump head

A peristaltic pump 10 for use in ophthalmic surgery includes a housing 12 , a pump head 14 having plurality of rollers 16 held within the housing 12 , and a backing plate 18 attached to the housing 12 . The pump head 14 moves relative to the housing 12 and backing plate 18.

Peristaltic pump that communicates air by moving the pump head or backing plate during surgery

Membrane pump

The present invention is an electromagnetic driven membrane pump, comprised of a pump housing inside which at least one, to at least one intake and at least one outlet, pump chamber (15) is formed and delimited between a gable of the pump housing and at least one to the pump housing's wall attached and completely sealed membrane (14), that is attached to a, in the pump housing's axial direction running axle (13), that is suspended in at least two, in the axle's longitudinal direction separated suspensions. At least one of the suspensions is comprised of a flat spring (9) attached to the axle, in a radial direction out toward the pump housing's wall (4). The axle is comprised of a magnetic material to be driven by a magnetic field from an electromagnet (7) for oscillation in its longitudinal direction and moving the membrane in a corresponding oscillating movement. The flat spring (9) is comprised of an inner and at least one outer part, at which the outer part /parts are attached to the pump housing and the inner part to the axle (13). These parts are connected with one another by two elastic legs, arranged at each side of the point where the spring is attached to the axle (13).

Membrane suction pump unit

Automatic control system for diaphragm pumps

A method and apparatus for controlling the discharge time of a fluid activated diaphragm pump. The control system regulates the discharge time, by measuring the discharge time and comparing the measured time with a predetermined desired discharge time. The control system includes, inter alia, a programmable logic controller, an upper and lower proximity switch, a target, a rod to hold the target, a pilot controlled pressure regulator, a set of digitally controlled solenoids which control a pilot valve, a solenoid, and a pressure switch. The rod is secured to the diaphragm of the diaphragm pump, and the proximity switches respond to the movement of the rod to detect the movement, or stroke, of the diaphragm. The pressure supplied to the diaphragm pump is automatically, and continuously, adjusted to maintain a desired discharge time.

Microfluidic pump and valve structures and fabrication methods

Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.

diaphragm Pump

An electromagnetic driven membrane pump has a pump housing inside which at least one pump chamber (15) having at least one intake and outlet is formed and delimited between a gable (1) of the pump housing and at least one completely-sealed membrane (14) attached to a wall (4) of the pump housing and, in an axial direction of the pump housing, to a running axle (13) suspended in at least two separated suspensions in a longitudinal direction of the axle (13). At least one of the suspensions is composed of a flat spring (9) attached to the axle (13) in a radial direction out toward the wall (4) of the pump housing. The axle (13) is composed of magnetic material to be driven by a magnetic field from an electromagnet (7) for oscillation in its longitudinal direction and moving the membrane (14) in corresponding oscillating movement. The flat spring (9) is composed of an inner and at least one outer part, with the inner part attached to the axle (13) and the outer part(s) attached to the pump housing. These parts are connected with one another by two elastic legs, arranged at each side of the point where the spring is attached to the axle (13).

Precision pump with multiple heads

A pump for use in handling one or more different process fluids includes a plurality of pumping chambers having a process fluid inlet and a process fluid outlet, process fluid outlet coupled to a process fluid valve on each pumping chamber for selectively preventing and allowing the flow of process fluid through the pumping chamber, an actuation mechanism for pumping actuating fluid to a plurality of actuating fluid chambers in fluid communication with the actuating fluid chambers to permit flow into each actuating fluid chamber of actuating fluid, and at least one diaphragm separating each pumping chamber from an associated actuating fluid chamber, for separating process fluid from actuating fluid. Operation of the actuation mechanism displaces actuating fluid and causes actuating fluid to flow only into each of the actuating fluid chambers having an opened process fluid valve, resulting in pumping.

Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery

A peristaltic pump 10 for use in ophthalmic surgery includes a housing 12 , a pump head 14 having plurality of rollers 16 , a backing plate 18 attached to the housing 12 , and a length of surgical tubing 50 . The rollers 16 and backing plate 18 cooperate to pinch the length of surgical tubing 50 to peristaltically pump fluids from a surgical site to a collection bag 64 . At least one of the pump head 14 and the backing plate 18 is moveable, during operation of the pump 10 , from a tubing pinched position to a tubing vent position. This movement allows the tubing 50 to be vented by removing the pinched closure of the tubing 50.

Improved micro-pump.

Dans cette micropompe, le pompage est obtenu grâce à la déformation d'une plaquette (12) à l'aide d'une pastille piézo-électrique (13). La déformation provoque une variation de volume d'une chambre de pompage (15) délimitée dans une plaquette (11) en une matière susceptible d'être usinée par des procédés photolitographiques. La sortie (3) de la pompe est obturée sélectivement par un clapet à membrane (18) qui est en communication directe avec un autre clapet (16) à travers la chambre de pompage. Ledit clapet (16) fait sélectivement communiquer celle-ci avec l'entrée (2) de la pompe. La membrane du clapet de sortie (18) est associée à une couche d'oxyde (17) qui lui confère une prétension à la fermeture. De ce fait, le clapet exerce un effet de régulation sur le fonctionnement de la pompe rendant le débit pratiquement indépendant de la pression à la sortie (3). Application à l'injection par doses précises de médicaments. In this micropump, pumping is obtained by deformation of a plate (12) using a piezoelectric pellet (13). The deformation causes a variation in volume of a pumping chamber (15) delimited in a plate (11) made of a material capable of being machined by photolitographic processes. The outlet (3) of the pump is selectively closed by a diaphragm valve (18) which is in direct communication with another valve (16) through the pumping chamber. Said valve (16) selectively communicates it with the inlet (2) of the pump. The diaphragm of the outlet valve (18) is associated with an oxide layer (17) which gives it pretension to closure. Therefore, the valve exerts a regulating effect on the operation of the pump making the flow rate practically independent of the pressure at the outlet (3). Application to injection by precise doses of drugs.

Micropump

A pump including a stator, a rotor comprising an axial extension slidably and rotatably mounted at least partially in a rotor chamber of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet, that open and close as, a function of at least the angular displacement of the rotor. The pump comprises interacting cam elements on the rotor and stator and biasing elements acting on the rotor for applying a force on the rotor in the axial direction of the stator cam elements.

Piezoelectric micropump

A piezoelectric micropump (10) is disclosed for pumping fluid from a container (14) to a delivery point in low volumes and at controlled flow rates. The pumping action is created by movement of two or three diaphragms (40, 42, 44). The movement of each diaphragm is caused by expansion and contraction of an attached piezoelectric actuator (46, 48, 50). Coordination of the movement of the diaphragms (40, 42, 44) creates unidirectional flow of the fluid. The piezoelectric actuators (46, 48, 50) are cantilevered between the pump body (22) and the diaphragms (40, 42, 44) to provide greater deflection of the diaphragms (40, 42, 44). The piezoelectric actuators (46, 48, 50) preferably are piezoelectric bimorphs such that the diaphragms (40, 42, 44) can function as both seals and pumps.

Piezoelectric micropump

A piezoelectric micropump is disclosed for pumping fluid from a container to a delivery point in low volumes and at controlled flow rates. The pumping action is created by movement of two or three diaphragms. The movement of each diaphragm is caused by expansion and contraction of an attached piezoelectric actuator. Coordination of the movement of the diaphragms creates unidirectional flow of the fluid. The piezoelectric actuators are cantilevered between the pump body and the diaphragms to provide greater deflection of the diaphragms. The piezoelectric actuators preferably are piezoelectric bimorphs such that the diaphragms can function as both seals and pumps.

Piezoelectric micropump

压电微型泵

公开了一种压电微型泵(10)，用于以一低体积和在可控制的流速下将流体从一容器(14)泵送到一传送点。泵送动作是通过两个或三个隔膜(40，42，44)的运动产生的。每个隔膜的运动是通过一连接的压电致动器(46，48，50)的膨胀和收缩引起的。隔膜(40，42，44)的运动的协调产生了单方向的流体流动。压电致动器(46，48，50)悬在泵体(22)和隔膜(40，42，44)之间，从而隔膜(40，42，44)能够较大地弯曲。压电致动器(46，48，50)最好是双压电晶片，使隔膜(40，42，44)完成密封件和泵的双重功能。

Pump apparatus

A pump apparatus comprises a piston, which is provided displaceably along a first chamber formed in a body under the action of a pilot pressure, an indirect medium composed of a non-compressive fluid and which is to be pressed by the piston, and a diaphragm that is flexibly bendable in cooperation with the indirect medium. When the fluid is discharged from a discharge port, a change in volume caused by the displacement of the piston in the axial direction is identical to the change in volume caused by the displacement of the diaphragm in the axial direction.

Pulseless positive displacement pump and method of pulselessly displacing fluid

A double displacement pump includes an inlet manifold, an outlet manifold, a first fluid cavity between the inlet manifold and the outlet manifold, a second fluid cavity between the inlet manifold and the outlet manifold, and a drive system that includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull.

Pump apparatus

A pump apparatus comprises a piston, which is provided displaceably along a first chamber formed in a body under the action of a pilot pressure, an indirect medium composed of a non-compressive fluid and which is to be pressed by the piston, and a diaphragm that is flexibly bendable in cooperation with the indirect medium. When the fluid is discharged from a discharge port, a change in volume caused by the displacement of the piston in the axial direction is identical to the change in volume caused by the displacement of the diaphragm in the axial direction.

Electric drive system for a pulseless positive displacement pump

A drive system for a pump includes a first housing defining an internal pressure chamber, a working fluid disposed within and charging the internal pressure chamber, a second housing disposed within the first housing, a solenoid disposed within the second housing, a reciprocating member slidably disposed within the solenoid, a pull housing integral with a first end of the reciprocating member, the pull housing defining a pull chamber, a pull disposed within the pull chamber, and a fluid displacement member coupled to the pull.

Drive system for a pulseless positive displacement pump

Pulseless positive displacement pump and method of pulselessly displacing fluid

用于无脉动正位移泵的驱动系统

一种用于泵的驱动系统包括限定内部压力室的壳体、设置在内部压力室中并且具有第一牵拉室和第二牵拉室以及用于接收驱动器的中心狭槽的活塞、具有能够滑动地固定在第一牵拉室中的自由端部的第一牵拉件、和具有能够滑动地固定在第二牵拉室中的自由端部的第二牵拉件、和连接到第一牵拉件的第一流体位移构件、和连接到第二牵拉件的第二流体位移构件。

Method of pulselessly displacing fluid

A method of displacing fluid includes pulling a pump displacement member through a suction stroke with a pull, the pull configured to transmit only tensile forces to the fluid displacement member. A working fluid disposed in an internal pressure chamber drive the fluid displacement member through a pumping stroke. The pull is prevented from transmitting any compressive forces to the fluid displacement member, such that the pull does not drive the fluid displacement member through the pumping stroke.

Mechanical drive system for a pulseless positive displacement pump

A drive system for a pump includes a housing defining an internal pressure chamber, a working fluid disposed within and charging the internal pressure chamber, and a reciprocating member disposed within the internal pressure chamber. The reciprocating member has a pull chamber. A pull is secured within the pull chamber, and a fluid displacement member is coupled to the pull.

用于无脉动正位移泵的驱动系统

一种用于泵的驱动系统包括限定内部压力室的壳体、设置在内部压力室中并且具有第一牵拉室和第二牵拉室以及用于接收驱动器的中心狭槽的活塞、具有能够滑动地固定在第一牵拉室中的自由端部的第一牵拉件、和具有能够滑动地固定在第二牵拉室中的自由端部的第二牵拉件、和连接到第一牵拉件的第一流体位移构件、和连接到第二牵拉件的第二流体位移构件。

Drive system for a pulseless positive displacement pump

A drive system for a pump comprises a first housing defining an internal pressure chamber, the internal pressure chamber configured to be filled with a working fluid, a fluid displacement member at least partially bounding the internal pressure chamber, and a reciprocating member disposed within the internal pressure chamber, wherein the reciprocating member is configured to pull the fluid displacement member through a suction stroke and the working fluid is configured to push the fluid displacement member through a pumping stroke, the reciprocating member movable relative to the fluid displacement member.

Hydraulic drive system for a pulseless positive displacement pump

A drive system for a pump includes a first housing defining an internal pressure chamber, a working fluid disposed within and charging the internal pressure chamber, a second housing having a first and second pumping chambers and an aperture through an end of the second housing, a reciprocating member slidably disposed between the first pumping chamber and the second pumping chamber, a pull housing integral with the reciprocating member and projecting through the aperture, a first sealing member disposed around a circumference of the reciprocating member, a second sealing member disposed around a circumference of the aperture, the pull housing defining a pull chamber, a pull disposed within the pull chamber, and a fluid displacement member coupled to the pull.

Pulseless positive displacement pump and method of pulselessly displacing fluid

A double displacement pump includes an inlet manifold, an outlet manifold, a first fluid cavity between the inlet manifold and the outlet manifold, a second fluid cavity between the inlet manifold and the outlet manifold, and a drive system that includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull.

Fluid pumps, methods of manufacturing fluid pumps, and methods of pumping fluid

유체 펌프는 제 1 공동과 제 2 공동을 둘러싸는 펌프 본체와, 제 1 공동 내에 배치된 제 1 가요성 부재와, 제 2 공동 내에 배치된 제 2 가요성 부재와, 제 1 가요성 부재 및 제 2 가요성 부재 각각의 사이에 배치되고 그에 부착된 구동 샤프트를 포함한다. 구동 샤프트는 펌프 본체 내에서 전후로 활주하도록 구성된다. 또한, 펌프는 제 1 가요성 부재와 제 2 가요성 부재 사이에 배치되고 교번적 순서로 구동 유체 챔버들에 구동 유체를 전달하도록 작동식으로 결합되는 제 1 절환 밸브 및 제 2 절환 밸브를 포함한다. 일부 유체 펌프들은 모듈식 수용 공동을 형성하는 중심 본체와의 억지끼워맞춤에 의해 모듈식 수용 공동 내에 고정된 모듈식 삽입체를 포함한다. 유체 펌프들을 제조 및 사용하는 방법들도 개시되어 있다. The fluid pump includes a pump body surrounding the first cavity and the second cavity, a first flexible member disposed in the first cavity, a second flexible member disposed in the second cavity, a first flexible member, And a drive shaft disposed between and attached to each of the two flexible members. The drive shaft is configured to slide back and forth in the pump body. The pump also includes a first switching valve and a second switching valve disposed between the first and second flexible members and operatively coupled to deliver the driving fluid to the driving fluid chambers in an alternating order . Some fluid pumps include a modular insert secured within a modular receiving cavity by forced interference with a central body defining a modular receiving cavity. Methods of making and using fluid pumps are also disclosed.

Membrane Suction Pump Unit

A membrane suction pump unit has a dimensionally stable membrane frame ( 1 ), a dimensionally stable monobloc membrane cover ( 3 ), which has a pump chamber ( 31 ) with a floor region and a side wall ( 36 ) encircling the floor region and widening outwards away from the floor region, and a monobloc pump membrane ( 2 ), which has a membrane plate ( 20 ), a flexible membrane piston ( 21 ), at least one inlet valve flap ( 23 ) and at least one outlet valve flap ( 24 ). The membrane plate ( 20 ) is arranged between the membrane frame ( 1 ) and the membrane cover ( 3 ), and membrane frame ( 1 ), pump membrane ( 2 ) and membrane cover ( 3 ) are connected to one another by means of connecting elements ( 15, 15′, 15 ″) in a preset position. The membrane piston ( 21 ) passes through the membrane frame ( 1 ), and the membrane piston ( 21 ) covers a pump chamber ( 31 ) of the membrane cover ( 3 ). According to the invention, there are more than three connecting elements ( 15, 15′, 15 ″), forming a material and/or positive fit.

Piezoelectric-driven diaphragm pump

A piezoelectric-driven diaphragm pump is comprised of a driving unit ( 1 ) having a driving diaphragm ( 12 ) and a first housing ( 11 ), a replaceable driven unit ( 2 ) having a driven film ( 241 ) and a second housing ( 21 ), and a fixing unit ( 3 ) for fixing the driven unit ( 2 ) to the driving unit ( 1 ). A vibration transmitting face ( 14 ) of the driving diaphragm ( 12 ) from which displacement of the driving diaphragm ( 12 ) is transmitted to the driven film ( 241 ) and a vibration transmitted face ( 241 a ) of the driven film ( 241 ) to which the displacement of the driving diaphragm is transmitted are not parallel to a reference plane ( 11 b ) of the first housing ( 11 ) which faces the second housing ( 21 ), and the vibration transmitting face ( 14 b ) of the driving diaphragm ( 12 ) contacts with entire of the vibration transmitted face ( 241 a ) of the driven film ( 241 ). Thereby, the displacement of the driving diaphragm ( 12 ) is efficiently transmitted to the driven film ( 241 ), so that a capacity of a pump room ( 25 ) can be varied largely.

Piezoelectric-driven diaphragm pump

A piezoelectric-driven diaphragm pump is comprised of a driving unit ( 1 ) having a driving diaphragm ( 12 ) and a first housing ( 11 ), a replaceable driven unit ( 2 ) having a driven film ( 241 ) and a second housing ( 21 ), and a fixing unit ( 3 ) for fixing the driven unit ( 2 ) to the driving unit ( 1 ). A vibration transmitting face ( 14 ) of the driving diaphragm ( 12 ) from which displacement of the driving diaphragm ( 12 ) is transmitted to the driven film ( 241 ) and a vibration transmitted face ( 241 a ) of the driven film ( 241 ) to which the displacement of the driving diaphragm is transmitted are not parallel to a reference plane ( 11 b ) of the first housing ( 11 ) which faces the second housing ( 21 ), and the vibration transmitting face ( 14 b ) of the driving diaphragm ( 12 ) contacts with entire of the vibration transmitted face ( 241 a ) of the driven film ( 241 ). Thereby, the displacement of the driving diaphragm ( 12 ) is efficiently transmitted to the driven film ( 241 ), so that a capacity of a pump room ( 25 ) can be varied largely.

微型泵

本发明公开了一种泵，该泵包括定子（8）、转子（6）和至少第一阀和第二阀；该转子（6）包括可滑动并可转动地至少部分安装在所述定子的转子腔室（10）中的轴向延伸部（14，16）；所述至少第一阀和第二阀分别在入口和所述转子腔室之间以及所述转子腔室和出口（12）之间，所述至少第一阀和第二阀至少随所述转子的角位移的变化而打开和关闭。所述泵还包括在所述转子和定子上的相互作用的凸轮元件（42，44）以及作用在所述转子上用于沿所述定子的凸轮元件的轴向方向将力施加到所述转子上的偏压装置。

고압가스 제조용 피스톤식 압축기의 압력 조절 장치

본 발명은 모터와 연결되어 왕복하는 피스톤이 장착되는 본체를 감싸는 커버 어셈블리에 다양한 실시예에 따른 압력 조절부를 형성함으로써 압력 부하를 경감시켜 원활한 왕복 운동을 지속적으로 수행하면서도 장치의 내구성을 유지할 수 있도록 하는 고압가스 제조용 피스톤식 압축기의 압력 조절 장치에 관한 것이다.

Micropump.

Peristaltic micropump with volume flow sensor

The pump has a flow channel (5) with a cross sectional area that is modifiable in sections of the flow channel through force effect on a wall body (4) of the channel. An actuator (15) is arranged such that the actuator exerts a force on the wall body in sealable channel sections to reduce the cross-section of the channel sections. Sensor arrangements (18) detect an amount of fluid medium such as insulin, in the channel sections, and are arranged outside the flow channel. Independent claims are also included for the following: (1) a device for dosing application of fluid medicament (2) a method for monitoring a micro-pump.

Micropump for peristaltic pumping of a liquid medium

The invention relates to a micropump for peristaltic pumping of a liquid medium and to a device which contains a peristaltic micropump and which is for metered administration of a liquid drug.

Micropump for peristaltic pumping of a liquid medium

The invention relates to a micropump for peristaltic pumping of a liquid medium and to a device which contains a peristaltic micropump and which is for metered administration of a liquid drug.

정량 펌프

본 발명은 유체를 정확한 투입시간과 투입량으로 공급될 수 있도록 정밀하게 작동되는 정량 펌프에 관한 것이다. 본 발명은 작동을 제어하는 프로그램이 내장된 기판과, 상기 프로그램을 조작하는 패널을 구비한 제어부와, 상기 제어부의 신호에 의해 작동되는 모터를 포함하는 본체; 유체 저장 탱크와 연결된 튜브; 상기 모터에 연결되어 회전 구동되어 상기 튜브를 가압하여 흡입 및 토출작동을 유발하는 가압수단이 형성된 헤드를 포함한다.

강유전성 펌프

강유전성 펌프는 하우징 내부에 하나 이상의 변화가능한 용적 펌프 챔버들을 가진다. 각 챔버는 적어도 하나의 벽에서 액츄에이터의 내부면과 외부면 사이에 인가되는 전압에 따라 높이가 변하는 돔을 가지고 내부에 초기 응력이 가해진 돔 형상의 강유전성 액츄에이터를 포함한다. 펌핑된 매질은 강유전성 액츄에이터의 변위에 반응하여 각각의 펌프 챔버로 유입 및 유출된다. 강유전성 액츄에이터는 각 벽의 내부에서 상기 펌핑된 매질로 부터 각 강유전성 액츄에이터를 분리하고, 각 강유전성 액츄에이터에 인가되는 전압을 위한 경로제공과, 인가된 전압에 반응하여 각 강유전성 액츄에이터의 전체의 허용 변위까지 능동적 억제를 제공한다.

Two valve micropump with improved outlet

Pumping takes place within the micro-pump as a result of the deformation of a plate (12) using a piezo-electric pad (13). The deformation produces a variation in volume within a pumping chamber (15) defined inside a plate (11) which is made of a material which can be machined using photolithographic processes. The pump outlet (3) is blocked off, selectively, by a membraned check-valve (18) which is in direct communication with another check-valve (16) via the pumping chamber. The check-valve (16) selectively enables the pumping chamber to communicate with the pump inlet (2). The outlet valve membrane (18) has a layer of oxide (17) providing a pretension on closing. The check-valve thus has a regulatory effect on the pump operation, making the flow almost independent of the outlet (3) pressure. Application: injection of exact doses of medication.

Liquid discharge control apparatus

압전형 격막펌프를 사용하는 액체 토출 제어장치에 있어서, 축적기는 액체축적공동을 구비하며, 이동부재는 격막펌프의 출구에 연결된다. 격막펌프의 토출작동에서, 액체축적공동의 액체량은 급속 증가되며, 이동부재는 액체축적공동의 부피를 증가시키기 위해서 탄성적으로 변형된다. 택일적으로, 흡입작동에서, 액체의 역류가 발생할 때, 격막펌프의 출구에 연결되는 경로상 액체량은 역류에 기인하여 감소된다. 액체의 감소는 축적기의 액체축적공동의 부피감소에 의해서 보상될 수 있다. 이에 의해, 축적기의 출구로부터 토출되는 액체량 변화는 감소되며 액체는 원활하게 토출될 수 있다. In the liquid discharge control apparatus using the piezoelectric diaphragm pump, the accumulator has a liquid accumulation cavity, and the moving member is connected to the outlet of the diaphragm pump. In the discharging operation of the diaphragm pump, the liquid amount of the liquid accumulation cavity rapidly increases, and the movable member is elastically deformed to increase the volume of the liquid accumulation cavity. Alternatively, in the suction operation, when a backflow of the liquid occurs, the amount of liquid on the path connected to the outlet of the diaphragm pump is reduced due to the backflow. The reduction of liquid can be compensated by the volume reduction of the liquid accumulation cavity of the accumulator. By this, the change in the amount of liquid discharged from the outlet of the accumulator is reduced and the liquid can be smoothly discharged. 액체토출, 제어장치, 압전형, 격막펌프, 축적기, 액체축적공동 Liquid discharge, control device, piezoelectric, diaphragm pump, accumulator, liquid accumulation cavity

压电泵

本发明提供一种构造简单、且可以排出较高压力的压电泵。在泵本体(10)的中央部形成第一开口部(11)，在离开中央的位置形成第二开口部(12)。对泵本体(10)固定金属制膜片(20)的外周部，在膜片(20)的背面中央部粘贴大小为覆盖第一开口部(11)、且未到达第二开口部(12)的压电元件(23)。通过对压电元件(23)施加谐振频率附近的电压，使与第一开口部(11)对置的膜片(20)的部分和与所述中间区域的膜片(20)的部分向相反方向弯曲变形，从第一开口部(11)及第二开口部(12)的一方吸入流体，从另一方排出。据此，可以提高排出压力，即使在排出侧的压力较高的条件下也可以确实地排出流体。

Positive displacement pump with fluid reservoir

Die vorliegende Erfindung betrifft eine Verdrängerpumpe mit einem Förderraum, welcher mit einem Druck- und einem Sauganschluss verbunden ist, einem das Volumen des Förderraum bestimmendes Verdrängerelement, das zwischen einer ersten Position, in der der Förderraum ein kleineres Volumen aufweist, und einer zweiten Position, in der der Förderraum ein größeres Volumen aufweist, hin- und herbewegt werden kann, wobei der Druckanschluss über ein Druckventil mit dem Förderraum verbunden ist und der Sauganschluss über ein Saugventil mit dem Förderraum verbunden ist. Um eine entsprechende Verdrängerpumpe bereitzustellen, die selbst entlüftend ist, einfach aufgebaut ist und zudem auch bei hohen Gegendrücken in der Druckleitung eine druckstabile Dosierleistung hat, wird erfindungsgemäß vorgeschlagen, dass ein mit Förderfluid befüllbares Reservoir über ein Entgasungsventil mit dem Förderraum verbunden ist. The present invention relates to a positive displacement pump having a delivery chamber, which is connected to a pressure and a suction port, a volume of the delivery chamber determining displacement element, which has a smaller volume between a first position, and a second position, in the delivery space has a larger volume, can be moved back and forth, wherein the pressure port is connected via a pressure valve to the delivery chamber and the suction port is connected via a suction valve with the delivery chamber. In order to provide a corresponding positive displacement pump, which is self-venting, simple in construction and also has a pressure stable dosing at high pressure surges in the pressure line, the invention proposes that a reservoir to be filled with conveying fluid is connected to the pumping chamber via a degassing valve.

LIQUID PUMP

Micro pump and driving method thereof

전체 크기를 줄이면서도 유체의 펌핑 성능을 향상시킬 수 있는 마이크로 펌프 및 이의 작동 방법을 제공한다. 마이크로 펌프는 연결 유로를 통해 연결되는 제1 공간과 제2 공간을 형성하는 케이스와, 제1 공간에 연결되는 유체 흡입관과, 제2 공간에 연결되는 유체 토출관과, 제1 공간을 덮도록 케이스에 설치되는 제1 변형 부재와, 제2 공간을 덮도록 케이스에 설치되는 제2 변형 부재를 포함한다. 제2 변형 부재는 제1 변형 부재보다 크게 형성되고, 제2 변형 부재의 최대 변위는 제1 변형 부재의 최대 변위보다 크다. Provided are a micropump and a method of operating the same, which can improve the pumping performance of a fluid while reducing its overall size. The micro-pump includes a case forming a first space and a second space connected through a connection flow path, a fluid suction pipe connected to the first space, a fluid discharge pipe connected to the second space, and a case covering the first space. And a second deforming member provided in the case so as to cover the second space. The second deforming member is formed larger than the first deforming member, and the maximum displacement of the second deforming member is greater than the maximum displacement of the first deforming member.

Micropump

Micropump

펌프는 고정자(8), 고정자의 회전자 챔버(10)내에 미끄러질 수 있고 회전 가능하게 적어도 부분적으로 장착된 축방향 연장부(14,16)를 구비하는 회전자(6) 및, 회전자의 적어도 각도 변위의 함수로서 개방 및 폐쇄되고 유입부와 회전 챔버 사이, 그리고 회전자 챔버와 유출부(12) 사이에 각각 있는 적어도 제 1 밸브 및 제 2 밸브를 포함한다. 펌프는 회전자 및 고정자상의 상호 작용하는 캠 요소(42,44)들 및 고정자 캠 요소의 축방향으로 회전자에 힘을 적용하도록 회전자에 작용하는 편향 수단을 포함한다. The pump comprises a stator (8), a rotor (6) having an axial extension (14,16) slidably and rotatably at least partly mounted in the stator rotor chamber (10) Includes at least a first valve and a second valve each open and closed as a function of angular displacement and between the inlet and the rotary chamber and between the rotor chamber and the outlet 12, respectively. The pump includes interacting cam elements (42,44) on the rotor and stator and biasing means acting on the rotor to apply a force to the rotor in the axial direction of the stator cam element.

Piezoelectric-driven diaphragm pump

PIEZOLELECTRICALLY OPERATED DIAPHRAGM PUMP

Piezoelectric-driven diaphragm pump

A piezoelectric-driven diaphragm pump is comprised of a driving unit (1) having a driving diaphragm (12) and a first housing (11), a replaceable driven unit (2) having a driven film (241) and a second housing (21), and a fixing unit (3) for fixing the driven unit (2) to the driving unit (1). A vibration transmitting face (14) of the driving diaphragm (12) from which displacement of the driving diaphragm (12) is transmitted to the driven film (241) and a vibration transmitted face (241a) of the driven film (241) to which the displacement of the driving diaphragm is transmitted are not parallel to a reference plane (11b) of the first housing (11) which faces the second housing (21), and the vibration transmitting face (14b) of the driving diaphragm (12) contacts with entire of the vibration transmitted face (241a) of the driven film (241). Thereby, the displacement of the driving diaphragm (12) is efficiently transmitted to the driven film (241), so that a capacity of a pump room (25) can be varied largely.

Piezoelectric-driven diaphragm pump

A piezoelectric-driven diaphragm pump is comprised of a driving unit (1) having a driving diaphragm (12) and a first housing (11), a replaceable driven unit (2) having a driven film (241) and a second housing (21), and a fixing unit (3) for fixing the driven unit (2) to the driving unit (1). A vibration transmitting face (14) of the driving diaphragm (12) from which displacement of the driving diaphragm (12) is transmitted to the driven film (241) and a vibration transmitted face (241a) of the driven film (241) to which the displacement of the driving diaphragm is transmitted are not parallel to a reference plane (11b) of the first housing (11) which faces the second housing (21), and the vibration transmitting face (14b) of the driving diaphragm (12) contacts with entire of the vibration transmitted face (241a) of the driven film (241). Thereby, the displacement of the driving diaphragm (12) is efficiently transmitted to the driven film (241), so that a capacity of a pump room (25) can be varied largely.

Piezoelectric pump

본 발명은 구조가 간단하면서 토출 압력을 높일 수 있는 압전 펌프를 제공한다. 펌프 본체(10)의 중앙부에 제1개구부(11)를 형성하고, 중앙으로부터 떨어진 위치에 제2개구부(12)를 형성한다. 펌프 본체(10)에 금속제 다이아프램(20)의 바깥둘레부를 고정하고, 다이아프램(20)의 배면 중앙부에 제1개구부(11)를 덮으면서 제2개구부(12)까지 도달하지 않는 크기의 압전 소자(23)를 부착한다. 압전 소자(23)에 공진주파수 부근의 전압을 인가함으로써 제1개구부(11)에 대향하는 다이아프램(20)의 부분과 제2개구부(12)에 대향하는 다이아프램(20)의 부분을 서로 반대방향으로 굴곡 변형시켜, 제1개구부(11) 및 제2개구부(12) 중 하나로부터 유체를 흡입하고 다른 하나로부터 토출한다. 이것에 의해 토출 압력을 높일 수 있고, 토출측의 압력이 높은 조건하에서도 유체를 확실히 토출할 수 있다. The present invention provides a piezoelectric pump having a simple structure and capable of increasing the discharge pressure. The 1st opening part 11 is formed in the center part of the pump main body 10, and the 2nd opening part 12 is formed in the position away from the center. The piezoelectric body of the size which does not reach the 2nd opening part 12 while fixing the outer periphery of the metal diaphragm 20 to the pump main body 10, and covering the 1st opening part 11 in the back center part of the diaphragm 20 The element 23 is attached. By applying a voltage near the resonant frequency to the piezoelectric element 23, the portion of the diaphragm 20 facing the first opening 11 and the portion of the diaphragm 20 opposite the second opening 12 are opposite to each other. The fluid is sucked from one of the first openings 11 and the second openings 12 and discharged from the other. As a result, the discharge pressure can be increased, and the fluid can be reliably discharged even under a high pressure on the discharge side. 펌프 본체, 제1개구부, 제2개구부, 다이아프램, 압전 소자 Pump main body, first opening, second opening, diaphragm, piezoelectric element

Piezoelectric micro-blower

[PROBLEMS] A piezoelectric micro-blower capable of efficiently conveying a compressive fluid without the use of a check valve and achieving a sufficient flow rate. [MEANS FOR SOLVING PROBLEMS] A first wall section (1a) and a second wall section (1b) are provided in a blower body (1), and openings (5a, 5b) are formed at those positions of the wall sections that face the center of a diaphragm (50). An inflow path (7) for interconnecting the openings (5a, 5b) and the outside is formed between both wall sections. When a voltage is applied to a piezoelectric element (3) to vibrate the diaphragm (50), that portion of the first wall section (1a) that is in the periphery of the opening (5a) vibrates. This causes gas to be drawn from the inflow path (7) and discharged from the opening (5b).

Piezoelectric micro blower

Improved micro-pump

Pumping takes place within the micro-pump as a result of the deformation of a plate (12) using a piezo-electric pad (13). Said deformation produces a variation in volume within a pumping chamber (15) defined inside a plate (11) which is made of a material which can be machined using photolithographic processes. The pump outlet (3) is blocked off, selectively, by a membraned check-valve (18) which is in direct communication with another check-valve (16) via the pumping chamber. Said check-valve (16) selectively enables the pumping chamber to communicate with the pump inlet (2). The outlet valve membrane (18) has a layer of oxide (17) providing a pretension on closing. The check-valve thus has a regulatory effect on the pump operation, making the flow almost independent of the outlet (3) pressure. Application: injection of exact doses of medication.

Piezoelectric micro-blower

An object is to provide a piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. A blower body 1 has a first wall 1a and a second wall 1b. Openings 5a and 5b are formed in parts of the respective walls, the parts facing a center of a diaphragm 50. An inflow path 7 allowing the openings 5a and 5b to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element 3 to cause the diaphragm 50 to vibrate, a part of the first wall 1a vibrates, the part being close to the first opening 5a. Thus, gas can be drawn from the inflow path 7 and discharged from the opening 5b.

受监控的比例计量供给设备和用于监控计量供给泵的方法

本发明涉及一种受监控的比例计量供给设备，其包括具有入口(12)、出口(13)、抽吸管嘴(16)和用于调节所述管嘴(16)中的流率的抽吸体积调节机构(11)的液体计量供给泵(1)，其特征在于，所述计量供给设备还包括检测装置组件，所述组件至少包括：用于检测所述管嘴中的压强变化的装置(3)，其被布置在第一抽吸阀门(14)与混合室之间；入口(12)处的水表(7)；用于测量待抽吸物品容器的液位的探测计(6)；用于确定抽吸体积调节机构(11)的位置的装置(22)；用于处理、记录和显示来自于所述检测装置的数据的人/机界面(4)。本发明还涉及使用所述比例计量供给设备监控计量供给泵的方法。

Magnetic actuator for a conveying unit

Method for controlling and / or regulating a metering pump

Die vorliegende Erfindung betrifft ein Verfahren zum Steuern und/oder Regeln einer Dosierpumpe mit einem Antriebsmotor mit einer vom Motor angetriebenen Welle und einem in einem Dosierkopf angeordneten Verdrängungsorgan, bei der die Drehbewegung der Welle in eine oszillierende Bewegung des Verdrängungsorgans umgesetzt wird, wobei das Verdrängungsorgan in Zusammenwirken mit einem Auslass- und Einlassventil in abwechselnder Folge zu einem Pumphub (Druckhub) und einem Ansaughub und damit zu einer Förderung eines Dosiermediums führt. Um ein Verfahren zum Steuern und/oder Regeln einer Dosierpumpe anzugeben, das prinzipiell ohne Positionssensor an der Schubstange auskommt und das Dosierverhalten der Pumpe mit hoher Präzision festlegen kann, wird erfindungsgemäß vorgeschlagen, dass wenigstens eine Motorbetriebsgröße, vorzugsweise eine Motorspannung U oder ein Motorstrom I, gemessen werden, zumindest eine Regelgröße aus den gemessenen Motorbetriebsgrößen und gegebenenfalls weiteren bekannten Motorcharakteristiken berechnet wird, die zumindest eine Regelgröße mit einer vorbestimmten Führungsgröße verglichen wird und ein von dem Ergebnis des Vergleichs abhängendes Vergleichssignal ausgegeben wird, welches als Status-, Ansteuer- und/oder Regelsignal verwendet werden kann. The present invention relates to a method for controlling and / or regulating a metering pump with a drive motor with a shaft driven by the motor and a displacement element arranged in a metering head, in which the rotary movement of the shaft is converted into an oscillating movement of the displacement element, the displacement element in Interaction with an outlet and inlet valve in an alternating sequence leads to a pump stroke (pressure stroke) and a suction stroke and thus to the conveyance of a dosing medium. In order to specify a method for controlling and / or regulating a metering pump, which in principle does not require a position sensor on the push rod and can determine the metering behavior of ...

Micro-pump or micro-discharge device

A micro-pump or micro-discharge device comprising piezo-electric means (201) which form part of wall means (201-203) of a liquid reservoir (211), the piezo-­electric means (201) being deformable by voltage signals in first and second directions so as respectively to draw liquid into and expel it from the liquid reservoir (211).

Two valve micropump with improved outlet

Pumping takes place within the micropump as a result of the deformation of a plate (12) using a piezoelectric pad (13). The deformation produces a variation in volume within a pumping chamber (15) defined inside a plate (11) which is made of a material which can be machined using photolithographic processes. The pump outlet (3) is blocked off, selectively, by a membraned check-valve (18) which is in direct communication with another check-valve (16) via the pumping chamber. The check-valve (16) selectively enables the pumping chamber to communicate with the pump inlet (2). The outlet valve membrane (18) has a layer of oxide (17) providing a pretension on closing. The check-valve thus has a regulatory effect on the pump operation, making the flow almost independent of the outlet (3) pressure.

Peristaltische Mikropumpe mit Volumenstromsensor

Micropump

A pump including a stator (8), a rotor (6) comprising an axial extension (14,16) slidably and rotatably mounted at least partially in a rotor chamber (10) of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet (12), that open and close as. a function of at least the angular displacement of the rotor. The pump comprises interacting cam elements (42,44) on the rotor and stator and biasing means acting on the rotor for applying a force on the rotor in the axial direction of the stator cam element.

Micropump

A patch pump device comprising a disposable unit and a reusable base unit (38) removably mounted to the disposable unit, the disposable unit including a drug reservoir (41) and a catheter (5) adapted for subcutaneous drug administration, the disposable unit having an adhesive base (43) adapted for adhesive mounting of the patch pump on a patient's skin, the device further including a pump comprising a pump module (2) and a drive (36), wherein the pump module is mounted to the reservoir in the disposable unit, said catheter being connected to an outlet (28) of the pump module, and the drive is mounted in the reusable unit and is configured to drive a rotor (6) of the pump module. The pump module includes a stator (8), a rotor comprising an axial extension (14,16) slidably and rotatably mounted at least partially in a rotor chamber (10) of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet (12), that open and close as a function of at least the angular displacement of the rotor.

微型泵

本发明公开了一种泵，该泵包括定子(8)、转子(6)和至少第一阀和第二阀；该转子(6)包括可滑动并可转动地至少部分安装在所述定子的转子腔室(10)中的轴向延伸部(14，16)；所述至少第一阀和第二阀分别在入口和所述转子腔室之间以及所述转子腔室和出口(12)之间，所述至少第一阀和第二阀至少随所述转子的角位移的变化而打开和关闭。所述泵还包括在所述转子和定子上的相互作用的凸轮元件(42，44)以及作用在所述转子上用于沿所述定子的凸轮元件的轴向方向将力施加到所述转子上的偏压装置。

Micropump

펌프는 고정자(8), 고정자의 회전자 챔버(10)내에 미끄러질 수 있고 회전 가능하게 적어도 부분적으로 장착된 축방향 연장부(14,16)를 구비하는 회전자(6) 및, 회전자의 적어도 각도 변위의 함수로서 개방 및 폐쇄되고 유입부와 회전 챔버 사이, 그리고 회전자 챔버와 유출부(12) 사이에 각각 있는 적어도 제 1 밸브 및 제 2 밸브를 포함한다. 펌프는 회전자 및 고정자상의 상호 작용하는 캠 요소(42,44)들 및 고정자 캠 요소의 축방향으로 회전자에 힘을 적용하도록 회전자에 작용하는 편향 수단을 포함한다. The pump comprises a stator (8), a rotor (6) having an axial extension (14,16) slidably and rotatably at least partly mounted in the stator rotor chamber (10) Includes at least a first valve and a second valve each open and closed as a function of angular displacement and between the inlet and the rotary chamber and between the rotor chamber and the outlet 12, respectively. The pump includes interacting cam elements (42,44) on the rotor and stator and biasing means acting on the rotor to apply a force to the rotor in the axial direction of the stator cam element.

Micropump

A pump including a stator, a rotor comprising an axial extension slidably and rotatably mounted at least partially in a rotor chamber of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet, that open and close as, a function of at least the angular displacement of the rotor. The pump comprises interacting cam elements on the rotor and stator and biasing means acting on the rotor for applying a force on the rotor in the axial direction of the stator cam element.

Micropump

FIELD: medicine. SUBSTANCE: invention concerns a micropump system, particularly a micropump system for medical application. A pump comprises a rotor (6) comprising a motor section (34), first and second axial expansions (14, 16) having different diameters, a stator (8) comprising a stator housing, having a rotor chamber (10, 12) for receiving at least the axial expansions, and first and second seals (18, 20) fixed around the first and second axial expansions. The axial expansions are provided with fluid grooves interacting with respective first and second seals to form first and second valves, which open and close fluid propagation along the respective seal as a function of at least rotor angulation. The pump comprises a third seal fixed around the second axial expansion nearby the motor section (34) of the rotor and limiting an output section (12) of the rotor chamber. EFFECT: invention aims at creating the pump for medical application, which is expected to be accurate, reliable, space-saving and safe to use. 11 cl, 13 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 570 994 C2 (51) МПК F04C 9/00 (2006.01) F04B 7/06 (2006.01) A61M 5/142 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011122665/06, 08.12.2006 (24) Дата начала отсчета срока действия патента: 08.12.2006 (72) Автор(ы): ХИЛЬБЕР Йозеф (CH), ШТРЕССЛЕР Зигфрид (CH) (73) Патентообладатель(и): СЕНСИЛЕ ПАТ АГ (CH) Приоритет(ы): (30) Конвенционный приоритет: R U 2 5 7 0 9 9 4 28.12.2005 EP 05405726.0; 02.11.2006 EP 06405462.0 Номер и дата приоритета первоначальной заявки, из которой данная заявка выделена: 2008130872 28.12.2005 (43) Дата публикации заявки: 10.12.2012 Бюл. № 34 (45) Опубликовано: 20.12.2015 Бюл. № 35 2 5 7 0 9 9 4 R U Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" C 2 C 2 (56) Список документов, цитированных в отчете о поиске: WO 2005/039674 A1, 06.05.2005. CH 688224 A5, 3006.1997. SU 1789754 A, 23.01.1993 ...

Micropump

A pump including a stator (8), a rotor (6) comprising an axial extension (14,16) slidably and rotatably mounted at least partially in a rotor chamber (10) of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet (12), that open and close as. a function of at least the angular displacement of the rotor. The pump comprises interacting cam elements (42,44) on the rotor and stator and biasing means acting on the rotor for applying a force on the rotor in the axial direction of the stator cam element.

微型泵

本发明公开了一种泵，该泵包括定子（8）、转子（6）和至少第一阀和第二阀；该转子（6）包括可滑动并可转动地至少部分安装在所述定子的转子腔室（10）中的轴向延伸部（14，16）；所述至少第一阀和第二阀分别在入口和所述转子腔室之间以及所述转子腔室和出口（12）之间，所述至少第一阀和第二阀至少随所述转子的角位移的变化而打开和关闭。所述泵还包括在所述转子和定子上的相互作用的凸轮元件（42，44）以及作用在所述转子上用于沿所述定子的凸轮元件的轴向方向将力施加到所述转子上的偏压装置。

Micropump

A pump including a rotor comprising a motor portion, first and second axial extensions having different diameters extending therefrom, a stator comprising a stator housing having a rotor chamber for receiving at least the axial extensions therein, and first and second seals mounted around the first and second axial extensions, the axial extensions being provided with liquid supply channels cooperating with the respective first and second seals to create first and second valves that open and close liquid communication across the respective seal as a function of at least the angular displacement of the rotor. The pump module comprises a third seal mounted around the second axial extension proximate the motor portion of the rotor, delimiting an outlet portion of the rotor chamber.