WO2017046199A1 - Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides - Google Patents

Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides Download PDF

Info

Publication number
WO2017046199A1
WO2017046199A1 PCT/EP2016/071758 EP2016071758W WO2017046199A1 WO 2017046199 A1 WO2017046199 A1 WO 2017046199A1 EP 2016071758 W EP2016071758 W EP 2016071758W WO 2017046199 A1 WO2017046199 A1 WO 2017046199A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
flow processes
measuring flow
drive shaft
fluids according
Prior art date
Application number
PCT/EP2016/071758
Other languages
German (de)
English (en)
Inventor
Heribert Kammerstetter
Otfried Derschmidt
Manfred PROSS
Herwig Breitwieser
Christian Thomas Berger
Original Assignee
Avl List Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avl List Gmbh filed Critical Avl List Gmbh
Priority to CN201680049977.XA priority Critical patent/CN108138765A/zh
Priority to EP16766287.3A priority patent/EP3350445A1/fr
Priority to JP2018513597A priority patent/JP2018529098A/ja
Priority to US15/759,524 priority patent/US20190145810A1/en
Publication of WO2017046199A1 publication Critical patent/WO2017046199A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0069—Magnetic couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/026—Compensating or correcting for variations in pressure, density or temperature using means to maintain zero differential pressure across the motor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/04—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls
    • G01F3/06—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing
    • G01F3/10—Geared or lobed impeller meters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2220/00—Application
    • F04C2220/24—Application for metering throughflow

Definitions

  • the invention relates to a device for measuring flow processes of measuring fluids with an inlet, an outlet, a driven via a drive unit Verdränger endeavorer, which is arranged in a Verdrängergephaseuse, a bypass line over which the Verdrängersammlunger is bypassed, a Druckdifferenzaufsacrificing disposed in the bypass line is and an evaluation and control unit, via which the drivable positive displacement is adjustable in dependence of the applied pressure difference on the pressure difference.
  • Such devices have been known for many years and are used, for example, for injection quantity measurement in internal combustion engines.
  • Such a constructed flow meter is also disclosed in DE 103 31 228 B3.
  • the gear pump is set to a constant speed before each injection, so that subsequently the movement of the piston is measured and this deflection is used to determine the injection curves.
  • a pressure sensor and a temperature sensor are arranged in the measuring chamber, the measured values of which are likewise fed to the arithmetic unit for calculating and correcting the injection quantity profiles.
  • a permanent magnet bearing outer rotor of a magnetic coupling is fixed, the inner rotor is separated from the outer rotor by a split pot.
  • a magnetic coupling is known for example from WO 2015/018568 AI.
  • the drive unit is formed by a split pot motor, wherein a split pot an inner space filled with measuring fluid, in which a drive shaft and a rotor of the split pot motor are arranged, from an outer space in which a windings supporting stator of the split pot motor is arranged separates ensures that the electric motor directly drives the positive displacement, so that no intermediate components are more necessary, which on the one hand cause costs and on the other hand, increase the elasticity between the electric motor and Verdrängerrad. In addition, the space requirement is reduced.
  • a split pot motor is a usually electronically commutated DC motor.
  • a positive displacement of Verdrängerimeers on the drive shaft of the Spalttopfmotors at least fixed against rotation and the permanent magnet rotor bearing the Spalttopfmotors is at least rotationally fixed on the drive shaft of the split pot motor or manufactured in one piece with the drive shaft, so that there is a direct drive of the positive displacement.
  • An elasticity of an intermediate Clutch omitted. Instead, a bearing feedback to the position of the positive displacement can be done directly on the driven shaft. In this way, a very precise control and calculation of the delivered volume flow is made possible.
  • a first bearing receptacle and a second bearing receptacle are respectively formed at axial ends of the split pot, in which a first bearing and a second bearing are arranged, via which the drive shaft is mounted. Additional bearings for mounting the displacer are not required, since the shear forces can be reliably absorbed by the distant arrangement of the bearing.
  • the containment shell has a flange, via which the containment shell motor is fastened to the displacer housing of the displacement meter.
  • a collar of the containment shell, within which the first bearing is disposed extends from the flange into an opening of the displacer housing.
  • the containment shell has a closed bottom on the axial end remote from the displacer housing. This means that the containment shell is opened exclusively to the displacer housing. Leaks in the rear area, as they can occur in cans omitted.
  • a permanent magnet is mounted on the drive shaft, which cooperates with a non-contact sensor. With such sensor-magnet arrangements, a highly accurate bearing feedback is possible, wherein the detected position of the drive shaft also corresponds to the position of the directly arranged thereon Verdrängerrades. Shifts between the position of the displacer and the determined position can not occur accordingly.
  • the permanent magnet is arranged at the end of the drive shaft remote from the displacer housing, whereby the magnet and the non-contact, in particular magnetoresistive sensor are very easy to reach due to their location and accordingly easy to install. A greater influence of the magnetic field of the stator is eliminated by the position of the sensor on the axis of rotation of the drive shaft.
  • the bottom of the split pot between the arranged on the drive shaft permanent magnet and the non-contact, in particular magnetoresistive sensor is arranged. Accordingly, the sensor is spatially separated from the magnet and thus protected in the non-perfused area and is still easily accessible, so that its electrical connection is easy to produce. Nevertheless, errors due to external magnetic fields are largely excluded by the short distance between the sensor and the magnet.
  • an inlet opening and an outlet opening are formed on the containment shell, via which the interior of the containment shell is connected to a purge line of the device for measuring flow processes. According to these openings, a venting of the interior of the split pot is possible, so that measurement error by itself from the interior solving and penetrating into the pump room air bubbles are avoided.
  • a particularly simple embodiment for carrying out these flushes is achieved when the inlet opening and the outlet opening are formed in the region of the collar of the containment shell. This allows a flushing of the interior of the split pot, without having to install additional lines. Instead, the connection to the flushing lines takes place automatically during the installation of the containment shell.
  • the interior of the split pot can be vented in one step with the other aggregates of the device.
  • the inlet opening is preferably formed in the geodetically lower region of the containment shell and the outlet opening is formed in the geodetically upper region of the containment shell. In this way it is prevented that larger amounts of air in the interior to collect, as the air rises to the top and there existing dead spaces are prevented. All air is removed through the upper outlet opening.
  • the purge line extends from the outlet opening of the containment shell through the displacer housing and a piston housing to the outlet. Outer lines for venting or flushing omitted. Instead, the already existing outlet can also serve to remove the air or the flushing fluid.
  • the purge line extends from a measurement chamber of the pressure differential sensor through the piston housing and the displacer housing to the inlet opening of the containment shell.
  • the measuring chamber can be vented simultaneously and in a single process step with the containment shell.
  • a device according to the invention for measuring flow processes of fluids is described below with reference to a non-restrictive embodiment shown in the figures.
  • FIG. 1 shows a schematic representation of a device according to the invention for measuring flow processes of fluids in the form of a flow chart.
  • Figure 2 shows an external perspective view of the device according to the invention.
  • FIG. 3 shows a perspective view of a drive unit which can be connected to a displacer housing.
  • FIG. 4 shows a sectional view of the drive unit fastened to the displacer housing.
  • the device for measuring flow processes of fluids shown in FIG. 1 has an inlet 10 and an outlet 12, which are connected to one another by a main line 14 are in which a rotary Verdrängerauerer 16, which is designed as a gear pump, is arranged.
  • a fluid to be measured flows from a device producing a flow, in particular a high-pressure fuel pump or an injection valve, into the main line 14 and is conveyed via the positive displacement counter 16, which can be driven via a drive unit 18.
  • a translatory Druckdifferenzier disturbing 22 is arranged, which consists of a measuring chamber 24 and an axially freely displaceably arranged in the measuring chamber piston 26 which has the same specific gravity as the measuring fluid, so the fuel and like the measuring chamber 24 cylindrically shaped is; the measuring chamber 24 thus has an inner diameter which substantially corresponds to the outer diameter of the piston 26.
  • a magnetoresistive sensor 28 is arranged on the measuring chamber 24, which is in operative connection with a magnet 30 mounted in the piston 26 and in which by the deflection of the piston 26 dependent on the size of the deflection of the piston 26 Voltage by the movement is generated on the changing and acting on the sensor 28 magnetic field.
  • the sensor 28 is connected to an evaluation and control unit 32, which processes the values of this sensor 28 and transmits corresponding control signals to the drive motor 18, which is as much as possible controlled so that the piston 26 is always in a defined starting position, the positive displacement 16 so the resulting due to the injected fluid on the piston 26 pressure difference is constantly compensated by promotion.
  • the deflection of the piston 26 or the volume displaced by it in the measuring chamber 24 by means of a transfer function in a desired delivery volume of the Verdränger greatesters 16 or a rotational speed of the drive motor 18 converted and the drive motor 18 is energized accordingly.
  • a pressure sensor 34 is additionally arranged, which continuously measures the pressures occurring in this area.
  • a temperature sensor 36 for measuring the fluid temperature. Both measured values are fed to the evaluation and control unit 32 in order to be able to take account of changes in the density in the calculation.
  • the sequence of the measurements takes place in such a way that, when calculating an overall flow to be determined in the evaluation and control unit 32, both a volume displaced by the movement or position of the piston 26 and the volume displaced therewith in the measuring chamber 24 arising flow in the bypass line 20 and an actual flow of the displacement counter 16 are taken into account in a fixed time interval and both flows are added together to determine the total flow.
  • the flow rate on the piston 26 is determined, for example, by differentiating the deflection of the piston 26 in the evaluation and control unit 32, which is connected to the sensor 28, and then multiplying it by the base area of the piston 26 so that a volumetric flow occurs in the bypass 20 in this time interval.
  • the flow through the positive displacement 16 and thus in the main line 14 can either be determined from the determined control data for controlling the Verdrängerintroductoryers 16 or calculated on the speed when it is measured directly via optical encoder or magnetoresistive sensors.
  • FIG. 2 shows an external view of the device according to the invention for measuring time-resolved flow processes.
  • the device according to the invention has a housing 38, which is manufactured in two parts, wherein in Verdrängergephase 40 serving as the first housing part of the positive displacement 16 is arranged and disposed in serving as a piston housing 42 second housing part of the Druckdifferenzier choir 22.
  • the inlet 10 and the outlet 12 are formed on the piston housing 42.
  • the drive unit 18 of the displacement counter 16 as well as the evaluation and control unit 32 are arranged within a hood 44 which, like the piston housing 42, is fastened to the displacement housing 40.
  • This drive unit 18 for driving the displacement counter 16 is shown.
  • This drive unit 18 according to the invention consists of a split pot motor 46.
  • This has a Permanent magnet 48 supporting rotor 50 which is formed by a radial extension portion of the drive shaft 52 and has receptacles 53 in which the permanent magnets 48 are held.
  • the rotor 50 is surrounded by a sleeve 55, through which the receptacles 53 are closed and which is fastened to the rotor 50.
  • This rotor 50 corresponds in a known manner with a radially outside of a split pot 54 and arranged surrounding the rotor 50 stator 56, the windings 58 which are energized to drive the gap pot motor 46 in a fixed sequence.
  • the containment shell 54 separates an interior 60 of the containment shell 54, through which the measurement fluid flows, in which the rotor 50 is arranged, from a dry outer space 62, in which the stator 56 is arranged, in a sealing manner. Accordingly, the bearing of the drive shaft 52 within the containment shell 54 by two arranged on axially opposite sides of the rotor 50 bearings 64, 66 is made, which abut with their inner rings against the extension portion axially.
  • a first bearing receptacle 68 is located within a collar 70 of the split pot 54, which, as can be seen in Figure 4, when installed extends into an opening 72 in a rear wall 74 of the displacer 40 and radially abuts the wall 72 delimiting the wall , The first bearing 64 rests axially against a stop 75 on the collar 70 with its outer ring.
  • a second bearing receptacle 76 is located on the collar 70 opposite axial end of the split pot 54 which is axially closed by a bottom 78 of the split pot 54, the second bearing 66 abuts axially with its outer ring against the bottom 78.
  • a circular recess 80 into which the end of the drive shaft 52 projects, on which a circular permanent magnet 82 is arranged, which is arranged correspondingly directly opposite to the bottom 78 on the axis of rotation.
  • a contactless sensor 84 On the permanent magnet 82 axially opposite side of the bottom 78 of the split pot 54 is a arranged contactless sensor 84, which can be formed for example as a Hall sensor.
  • This sensor 84 is disposed either directly on the bottom of the can 54 or on a circuit board, which can also be arranged on a bottom 78 of the can 54 facing the end of a surrounding motor housing 86 having unillustrated openings through which electrical lines penetrate the electrical connection of the sensor 84 and the fixedly arranged in the motor housing 86 stator 56 takes place.
  • the motor housing 86 closes the axial end of the can 54, on which the sensor 84 is arranged and extends from here hollow cylindrical around the stator 56 and the can 54 to a flange 88 of the can 54, which extends axially between the collar 70 and the Permanent magnet 48 carrying part of the rotor 50 extends radially and is attached to the flange 88.
  • a Verdrängerrad 96 On the projecting into the displacer housing 40 end of the drive shaft 52, a Verdrängerrad 96 is fixed, which is designed as an external gear and meshes with an internal gear of a ring gear 98, which is mounted in a rearwardly closed sleeve 100, which limits a delivery chamber 102 of the Verdränger greatesters 16 and is fixed in a receiving opening 104 of the displacer 40.
  • radially inwardly leading inlet opening 116 is formed, which is also a fluidic connection to a recess 118 at the opening 72 radially bounding wall of the displacer housing 40, which is also disposed directly opposite the inlet opening 116.
  • This recess 118 is fluidically connected to a serving as inlet channel groove 119 on the rear wall 111, which in turn is connected via a through hole in the sleeve 100 and a secondary channel in the piston housing 42 with a bypass opening of the measuring chamber 24 of the Druckdifferenzier choirs 22, not shown, via which a connection to the inlet 10 can be produced.
  • the grooves 110, 119, recesses 108, 118 and holes 120 serve as purge line 124th
  • measuring fluid flows into the inlet 10 without drive of the displacement counter 16 and passes via the measuring chamber 24 of the pressure differential sensor 22, the bypass opening, the channel in the piston housing 42, the through-bore, the groove 119 and the recess 118 via the inlet opening 116 into the interior space 60 the containment shell 54. Since in the containment shell 54 existing air rises to the top, This is discharged during the flushing via the outlet opening 106, the recess 108, the groove 110, the bore, the groove of the bushing 100 and the flow channel in the piston housing 42 to the outlet 12. Accordingly accumulate in the interior 60 of the split pot 54 no air bubbles, which could lead to measurement errors due to the compressibility of the air, if these bubbles would solve during operation and penetrate into the delivery chamber 102.
  • the bearing feedback for calculating the funded by the Verdrängergreaters 16 flow rate is highly accurate, since the Verdrängerrad 96 is disposed directly on the drive shaft 52 of the drive unit 18 and the measurement of the position is also directly on this drive shaft 52 by means of the magnetic 82 sensor 84 combination , It follows that the measured position always exactly corresponds to the position or the number of revolutions of the positive displacement wheel 96. Elasticities between the positions of the Verdrängerrades 96 and the location of the measurement, as they can occur in magnetic clutches or even slippage of the magnetic coupling rotors with each other, which can lead to erroneous measurements eliminated.
  • the control according to the signals of the pressure difference sensor 22 can be done with high accuracy.
  • the space required is reduced by the use of the split pot 54 and reduces the number of parts. Nevertheless, a high density of the device is achieved, so that leakage of the measuring fluid is reliably prevented, so that the windings of the stator are protected. Accordingly, the device also has a long service life.

Abstract

L'invention concerne un dispositif pour mesurer des processus d'écoulement de fluides, lequel dispositif présente une entrée (10), une sortie (12), un compteur à déplacement (16) pouvant être entraîné par une unité d'entraînement (18), agencé dans un boîtier à déplacement (40), une conduite de dérivation (20) par l'intermédiaire de laquelle le compteur à déplacement (16) peut être contourné, un capteur de différence de pression (22) qui est agencé dans la conduite de dérivation (20), ainsi qu'une unité d'évaluation et de commande (32) au moyen de laquelle le compteur à déplacement (16) pouvant être entraîné peut être réglé en fonction de la différence de pression présente au niveau du capteur de différence de pression (22). L'unité d'entraînement (18) se présente sous la forme d'un moteur à chemise d'entrefer (46) comprenant une chemise d'entrefer (54) qui sépare une chambre intérieure (60) remplie de fluide de mesure, dans laquelle sont agencés un arbre d'entraînement (52) et un rotor (50) du moteur à chemise d'entrefer (46), et une chambre extérieure (62), dans laquelle est agencé un stator (56) du moteur à chemise d'entrefer (46), lequel stator porte des enroulements (58).
PCT/EP2016/071758 2015-09-15 2016-09-15 Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides WO2017046199A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201680049977.XA CN108138765A (zh) 2015-09-15 2016-09-15 具有密封式电机的用于测量测量流的流通过程的设备
EP16766287.3A EP3350445A1 (fr) 2015-09-15 2016-09-15 Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides
JP2018513597A JP2018529098A (ja) 2015-09-15 2016-09-15 測定流体の貫流過程を測定するための、キャンドモータを備えた装置
US15/759,524 US20190145810A1 (en) 2015-09-15 2016-09-15 Device comprising a canned motor for measuring flow processes of measuring fluids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT006002015 2015-09-15
ATA600-2015 2015-09-15

Publications (1)

Publication Number Publication Date
WO2017046199A1 true WO2017046199A1 (fr) 2017-03-23

Family

ID=58288132

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/071758 WO2017046199A1 (fr) 2015-09-15 2016-09-15 Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides

Country Status (1)

Country Link
WO (1) WO2017046199A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521356B1 (de) * 2018-07-18 2020-01-15 Avl List Gmbh Druckdifferenzaufnehmer für ein Durchflussmessgerät sowie Durchflussmessgerät
CN116988969A (zh) * 2023-08-08 2023-11-03 山东星奥液压机械有限公司 一种具有过滤功能的液压泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442126A (en) * 1967-04-05 1969-05-06 Neptune Meter Co Magnetic coupling
DE10331228B3 (de) * 2003-07-10 2005-01-27 Pierburg Instruments Gmbh Vorrichtung zur Messung von zeitlich aufgelösten volumetrischen Durchflußvorgängen
DE102011001041A1 (de) * 2010-11-15 2012-05-16 Hnp Mikrosysteme Gmbh Magnetisch angetriebene Pumpenanordnung mit einer Mikropumpe mit Zwangsspuelung und Arbeitsverfahren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442126A (en) * 1967-04-05 1969-05-06 Neptune Meter Co Magnetic coupling
DE10331228B3 (de) * 2003-07-10 2005-01-27 Pierburg Instruments Gmbh Vorrichtung zur Messung von zeitlich aufgelösten volumetrischen Durchflußvorgängen
DE102011001041A1 (de) * 2010-11-15 2012-05-16 Hnp Mikrosysteme Gmbh Magnetisch angetriebene Pumpenanordnung mit einer Mikropumpe mit Zwangsspuelung und Arbeitsverfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BORGHOFF S: "MIKRODOSIERUNG IST ZAHNRADPUMPE", WDM : WAGEN DOSIEREN + MISCHEN, VERLAG COATING THOMAS & CO., ST. GALLEN, CH, vol. 37, no. 6, 1 December 2006 (2006-12-01), pages 4 - 06, XP001508040, ISSN: 1435-2176 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521356B1 (de) * 2018-07-18 2020-01-15 Avl List Gmbh Druckdifferenzaufnehmer für ein Durchflussmessgerät sowie Durchflussmessgerät
AT521356A4 (de) * 2018-07-18 2020-01-15 Avl List Gmbh Druckdifferenzaufnehmer für ein Durchflussmessgerät sowie Durchflussmessgerät
WO2020014724A1 (fr) * 2018-07-18 2020-01-23 Avl List Gmbh Capteurs de différence de pression pour un débitmètre ainsi que débitmètre
CN116988969A (zh) * 2023-08-08 2023-11-03 山东星奥液压机械有限公司 一种具有过滤功能的液压泵

Similar Documents

Publication Publication Date Title
EP3251200B1 (fr) Groupe motopompe pour système de freinage
AT516622B1 (de) System zur Messung von zeitlich aufgelösten Durchflussvorgängen von Fluiden
AT517817B1 (de) Vorrichtung mit Spalttopfmotor zur Messung von Durchflussvorgängen von Messfluiden
EP3350446B1 (fr) Dispositif pouvant être purgé servant à mesurer des processus d'écoulement de fluides
EP1857681B1 (fr) Pompe à vide à palettes avec moteur à gaine
WO2004092681A2 (fr) Detecteur optique destine a des machines electriques
WO2017046199A1 (fr) Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides
DE102014201875A1 (de) Elektromotor mit Haltescheibe und Verfahren zu dessen Montage
DE102015203437B3 (de) Verfahren zum Betrieb einer Vorrichtung zur dosierten Bereitstellung einer Flüssigkeit
EP3350445A1 (fr) Dispositif pourvu d'un moteur à chemise d'entrefer, servant à mesurer des processus d'écoulement de fluides
EP3184823B1 (fr) Pompe centrifuge
EP3438460B1 (fr) Pompe à vide
EP3768974B1 (fr) Pompe avec détection d'angle de rotation absolu
DE202013100271U1 (de) Durchflussmesseinrichtung für eine Getränkezubereitungsmaschine
DE102012207145A1 (de) Verdichter, insbesondere Seitenkanalverdichter sowie Verfahren zum Pumpen eines insbesondere gasförmigen Fluides mit Hilfe eines solchen Verdichters
DE102016005945A1 (de) Beschichtungsmittelpumpe
EP3350444B1 (fr) Dispositif d'écoulement fluidique bidirectionnel destiné à mesurer des processus d'écoulement de fluides
WO2021121897A1 (fr) Système de soupape
DE102011082587A1 (de) Pumpe mit Elektromotor
WO2012038199A2 (fr) Pompe à moteur électrique
DE102004044068B4 (de) Vorrichtung zur Sauerstoffversorgung und Anodengasrezirkulation eines Brennstoffzellensystems
DE102011005304A1 (de) Pumpe mit Elektromotor
DE102015200222A1 (de) Prüfvorrichtung zur Prüfung einer Pendelschieberpumpe/Flügelzellenpumpe
DE102010041237A1 (de) Pumpe mit Elektromotor
WO2023143748A1 (fr) Dispositif de soupape et procédé de mesure de courant et de mesure de position sur un tel dispositif de soupape

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16766287

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018513597

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2016766287

Country of ref document: EP