EP1456539B1 - Dosierpumpe - Google Patents

Dosierpumpe Download PDF

Info

Publication number
EP1456539B1
EP1456539B1 EP02782831A EP02782831A EP1456539B1 EP 1456539 B1 EP1456539 B1 EP 1456539B1 EP 02782831 A EP02782831 A EP 02782831A EP 02782831 A EP02782831 A EP 02782831A EP 1456539 B1 EP1456539 B1 EP 1456539B1
Authority
EP
European Patent Office
Prior art keywords
valve
pump
drive
metering pump
motor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP02782831A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1456539A1 (de
Inventor
Erwin Bolt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KNF Flodos AG
Original Assignee
KNF Flodos AG
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 KNF Flodos AG filed Critical KNF Flodos AG
Publication of EP1456539A1 publication Critical patent/EP1456539A1/de
Application granted granted Critical
Publication of EP1456539B1 publication Critical patent/EP1456539B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/02—Piston parameters
    • F04B2201/0201—Position of the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1208—Angular position of the shaft

Definitions

  • the invention relates to a metering pump, in particular a membrane metering pump with a working space limiting working diaphragm or the like displacement element and a pump drive for an oscillating movement of the displacement element, wherein the pump drive is direction reversible and the displacement element is movable back and forth, wherein a position sensor for position detection of the pump drive and an electronic control are provided, and with a pump head, in which an inlet valve and an outlet valve are arranged, wherein at least one of the valves is externally controlled and has a motorized valve drive as defined in the preamble of claim 1.
  • a metering pump is for example from the EP-A-1 132 616 known.
  • Metering pumps of this type are known in different embodiments. So you know dosing pumps that work with a magnetic drive and accordingly perform fast strokes. Due to the pulse-like promotion arise for the control of the valves sufficient pressure differences.
  • the change in the delivery stroke takes place by the pump drive for different rotary sections with a correspondingly different stroke, starting from a defined starting position, is moved back and forth. Even with this metering occur at the adjustable, low dosing sealing problems in the valves, so that the desired by the operation of the pump metering can be significantly reduced.
  • metering pumps are known in which a mechanical change of the stroke length is made for metering quantity adjustment.
  • a mechanical change of the stroke length is made for metering quantity adjustment.
  • the fluid is ejected at a correspondingly high speed. This pulse-like conveying is undesirable in many applications of metering pumps.
  • a generic metering pump is known, which is designed to promote a predeterminable volume of a liquid in a range of less than about 1 ml. It has a lifting drive for a diaphragm, to whose provision a return spring is provided. For large flow rates with practically continuous delivery and / or high delivery pressures this metering pump is unsuitable.
  • Object of the present invention is to provide a metering pump, with a wide operating range can be covered with smallest Dosiermengen and high repeatability, an exact adjustability of the pump to a variety of operating conditions, the pump, both at larger and smallest flow rates a high dosing accuracy should and should also be extremely low while maintaining a high dosing accuracy and the conveying speed.
  • the pump drive has a positioning motor and an eccentric or crank drive with a peripheral crank member and a connecting rod connected to the working diaphragm or the like displacement element, that the crank member for lower deflections of the working diaphragm against the maximum possible deflections in a circulating movement , in any area within the total circulation movement oscillating back and forth is movable for a compared to the maximum flow rate reduced flow, and that the electronic control at least with the or motor valve actuators of the inlet and / or outlet valve, is connected to the positioning of the pump drive and the position sensor for detecting the position of the displacement element and / or the pump drive.
  • the pendulum stroke are influenced depending on the position within the total work area. So can be influenced by a task adapted to the selection of the position of the pendulum stroke movement within a 360 ° total work movement, the effective stroke of the displacement element.
  • a pendulum stroke movement in the region of a dead center of a pump drive with a crank mechanism leads the displacement element within the extreme positions in the top and bottom dead center of the crank mechanism back and forth by the driving positioning motor is reversed accordingly, so that given a rotational movement results in a lower effective stroke than in a region between these two dead center.
  • the metering pump according to the invention can be operated both in any area of the total working movement of your pump drive with pendulum reciprocating working stroke as well as circumferentially with maximum working stroke and correspondingly maximum flow rate per stroke. As a result, a wide range of applications of the metering pump is given.
  • both the number of working strokes of the working membrane or the like per unit time and / or the drive speed can be adjusted for the pendulum stroke with reduced amplitude relative to the maximum amplitude.
  • the metered amount can be influenced and also the pumping characteristic, in particular with regard to the conveying speed.
  • a small stroke at high operating speed or vice versa a large stroke at be set low working speed.
  • the electronic control is designed to set a non-uniform drive speed of the drive motor, in particular for a fast suction stroke and a contrast slower Dosierhub.
  • the compensation corresponds to almost a sinusoidal movement with the superposition of the own for diaphragm pumps, hydraulic phenomena.
  • the appropriate stroke compensation can be specified by a speed curve per revolution or stroke, which is parameterized in the electronic control.
  • the electronic control can be designed for the variable control of the motor or the valve actuators of the inlet and / or outlet valve as a function of the position of the displacement element. Furthermore, there is the possibility that the electronic control for controlling the motor or the valve actuators of the inlet and / or outlet valve in response to different operating parameters, in particular depending on the operating pressure, the speed, the consistency of the pumped medium and the like is formed.
  • the switching positions of the valve or valves within a revolution or a Pendelhub Symposiumes depending on the operating pressure are chosen such that the delivery rate drop due to back pressure is minimized.
  • the appropriate switching positions can be determined by tests and there is also the possibility of a variable correction of the switching positions depending on the Operating pressure, if this is changed.
  • the corresponding specifications can be made manually, analog or digital.
  • the electronic control can have a memory device for storing different operating parameters and for assigning these operating parameters to different control times of the valve or valves.
  • the stored in the memory device operating parameters can be either manually selected or it is made a selection by measuring the actual operating parameters and assignment to the stored operating parameters.
  • corresponding measuring devices are provided for measuring, for example, the operating pressure, the backpressure, the rotational speed and the like.
  • the inlet and / or the outlet valve may have as a motorized valve drive an electromagnetic lifting magnet which has a guided by means of spaced leaf springs lifting armature, which is in driving connection with a valve closing body.
  • the mounting of the armature of the lifting magnet by means of at least two leaf springs results in a spring parallelogram, which is virtually wear-free and insensitive to contamination, since no sliding guide bearing parts are present.
  • the armature is guided in the stroke direction exactly and radially without play.
  • the lifting drive for the inlet valve and / or possibly also for the outlet valve is particularly durable by these measures.
  • at least one of the leaf springs of the lifting armature guide is biased in the closing direction of the externally operated valve.
  • At least one operable by the pump medium valve may be formed in particular with a resilient valve disc which rests in the closed position with a flat side on the one Venilsitz forming opening edge of an inflow channel and that on the side facing away from the inflow channel of the valve disc within the projection extension of the inflow channel, at least in the valve opening position the valve disc supporting, web-like abutment is provided.
  • the proposed design of the valve provides a good seal even with the possibly occurring during operation only small pressure differences.
  • the pump has good vacuum properties even at low operating speeds.
  • valve forms a complete, interchangeable unit and valve insert with an abutment and a discharge channel having abutment plate, a valve receiving plate and the valve disc is formed and that preferably the abutment plate and the valve receiving plate have interlocking Randanformept and especially welded together in the assembly position, glued or the like are connected.
  • the parts for the complete valve inserts can thus be produced independently of the pump head into which the valve insert is inserted, which has considerable advantages in terms of accuracy in terms of injection technology.
  • the high precision of the valve parts leads inter alia to a stress-free storage of the valve disc, which is a prerequisite for reliable operation of the valves with good sealing even at low pressure differences and very slow motion sequences.
  • the valve inserts can be replaced very easily overall.
  • the pump drive can be a controlled or a regulated motor, in particular a stepping motor or a control circuit operating in a closed loop Motor, for example, a servo DC motor or the like, have.
  • a closed loop Motor for example, a servo DC motor or the like.
  • This makes it possible to move a defined angle at a defined speed.
  • the direction of rotation of the motor is reversible, so that within the total working movement, on the other hand, the smaller-stroke pendulum lifting movements are feasible.
  • a non-contact such as opto-electronic or magnetic position sensor is provided as a position sensor, which cooperates with the positioning motor or a part driven by this and is connected to the control electronics.
  • the position of the working diaphragm in each operating phase is known, so that accordingly receives a positioning feedback on a drive motor operating in a control loop and on the other hand can be exactly matched to the position of the working diaphragm, the inlet and / or outlet valve to be controlled.
  • the position sensor can be designed so that it emits a reference signal at prominent positions, for example, the upper or lower dead center, from which the intermediate positions can be calculated within a revolution or a pendulum motion of the pump drive.
  • the position sensor can also have an encoder, can be closed by the directly to the respective position of the pump drive or driven therefrom working diaphragm.
  • a metering pump 1 shown in FIG. 1 has a motor-driven pump drive 2 for an oscillating movement of a displacement element.
  • the metering pump 1 has a pump housing 3 with a pump head 4, in which at least one inlet valve and one outlet valve are arranged.
  • electromagnetic linear actuators 5, 6 are provided.
  • the electromotive pump drive 2, the electromagnetic linear actuators 5, 6 for the valves and a position sensor for detecting the position of the pump drive are connected to an electronic controller 7.
  • the pump drive 2 formed by a positioning motor is variably controllable in terms of its speed and its direction of rotation.
  • the electronic control 7 is designed so that the positioning motor of the pump drive in any area of its total working movement with a predetermined stroke oscillating back and forth. By means of this pendulum stroke movement, it is possible to set a delivery quantity reduced in comparison to the maximum delivery quantity.
  • the pump drive with a predetermined angle of rotation and a predetermined speed is operable.
  • the valves provided in the embodiment of Figure 1 with electromagnetic linear actuators 5 and 6 also allow the working position of the pump drive arbitrarily assignable closing and opening times. It can thus specify a variety of operating parameters in order to adapt the pump to a variety of operating conditions can.
  • FIG. 2 shows a sectional view of the internal structure of a metering pump according to the invention.
  • This is designed as a diaphragm pump with a diaphragm 8 as a displacement element, wherein the diaphragm has a crank drive 9 as a pump drive with a peripheral crank member 10 and connected to the diaphragm 8 connecting rod 11.
  • the crank member 10 is connected to the positioning motor 12 (see Fig. 3).
  • the inlet valve 13 is provided with an electromagnetic lifting drive 5, while the outlet valve is a valve which can be actuated by the conveying medium.
  • the outlet valve 14 is designed as sensitive to small pressure differences valve. For certain dosing tasks, which work with a minimum conveying speed, this training with different valves well used.
  • valve 15 shown in Figure 5 may optionally be provided as an inlet valve or exhaust valve. This valve 15 is designed so that it shows a reliable sealing behavior even at low working or delivery speeds and the resulting low differential pressures between the suction side and pressure side.
  • the valve is designed as a disk valve and essentially has a re-storage plate 16, a valve disk 17 and a valve receiving plate 18. From these three parts 16, 17 and 18 a complete, can-shaped unit is formed as a valve core. This valve insert can be inserted into a corresponding receiving recess of the pump head.
  • the valve disk 17 With its flat side facing the suction side 19 lies in the closed position on the opening edge 20 of a central inflow channel 21 forming a valve seat in the valve receiving plate 18.
  • the valve disc 17 is held by positioning, which are arranged laterally adjacent to the opening edge and engage in open-edged recesses of the valve disc 17.
  • the re-storage plate 16 has within the projection extension of the inflow channel of the valve receiving plate 18 on a web-like revelation 22, via which the valve disc 17 is supported in the open position approximately along a diameter line.
  • valve disk tabs are pivoted to the return plate 16 out, so that the inflow channel 21 is open.
  • the distance of the plane passing through the support point of the abutment 22 from the plane formed by the opening edge 20 parallel plane is such that the valve disc 17 between them is kept tension-free. This is a prerequisite for a response of the valve disc even at the slightest pressure differences and also for a fast closing or opening operation.
  • the valve 15 on the pressure side of this is used turned by 180 degrees.
  • the electromagnetic lifting drive 5 has a guided by means of spaced-apart leaf springs 23, 24 lifting armature 25 which is in driving connection with a valve closing body 26.
  • a sleeve-shaped iron pole 27 is arranged in the axial extension of the lifting armature 25 in the axial extension of the lifting armature 25.
  • a coil 28 is arranged around this and the lifting armature.
  • a parallelogram for the lifting armature 25 is formed, so that no sliding guide bearing parts are required.
  • the lifting armature 25 is guided in the stroke direction exactly and radially without play.
  • at least one of the two leaf springs of the lifting armature guide is biased in the closing direction.
  • the valve is thereby in the de-energized state in the closed position, which is shown in Figure 2.
  • a rocker arm 29 is provided, which is coupled with its drive end with an axis connected to the lifting armature 30 and is connected at its other end to the valve closing body 26.
  • a Wipplagerung 31 is provided which surrounds the rocker arm 29 sealingly and which also seals a valve chamber to the outside.
  • the Wipplagerung is preferably designed as an elastomer passage, so that an absolute tightness is given.
  • the metering pump 1 is, as can be seen particularly well in Figures 3 and 4, equipped with a position sensor 32 for detecting the position of the pump drive or the displacement element forming membrane 8.
  • the position sensor has a magnet 33 which revolves with the crank member 10 and a magnetic sensor, which is preferably designed as a Hall sensor and is fixedly arranged next to the orbit of the magnet 33. It is thus generated with each revolution of the pump drive, a reference signal to which the further positioning oriented.
  • the reference signal is used for example for resetting or for generating a certain correction value.
  • stepper motor When using a stepper motor smallest step angles are possible, so that the membrane 8 can be brought into any position within its total work area. The adjustment can be extremely slow, with over several minutes extending strokes are possible, but on the other hand can also be used at high speed to achieve a high flow rate.
  • contactless position sensor shown in the exemplary embodiment it is also possible to use other, for example, optoelectronic position sensors, which optionally emit a large number of position data in the course of one revolution.
  • a servo DC motor instead of a stepper motor and a working in a loop engine, for example a servo DC motor can be used.
  • the positioning motor 2, the electromagnetic lifting drives 5 and 6 for the inlet valve 13 and the outlet valve 14 as well as the position sensor 32 are connected to the electronic control 7.
  • the operation of the pump can be varied within wide limits.
  • the electromagnetic lifting drives 5, 6 of the valves in dependence on the position of the membrane. 8 are controlled.
  • this option is advantageous because after a dosing with expulsion of the fluid from the pressure channel, an undesirable lagging or dripping of fluid can be avoided by the conveying direction is switched by reversing the two valves.
  • a partial stroke of the working diaphragm with a reversed valve closing sequence is generally sufficient. This means that in the suction stroke of the diaphragm with enlargement of the working space, the exhaust valve is opened while the inlet valve is closed.
  • the metering accuracy of the metering pump 1 can be substantially improved by this measure and it is also a simpler handling when setting the Dosiermenge possible.
  • the metering pump 1 with externally controlled inlet and outlet valve 13,14 can be used not only for a return promotion to avoid caster, but optionally for continuous delivery in both directions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Reciprocating Pumps (AREA)
  • Vending Machines For Individual Products (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Peptides Or Proteins (AREA)
EP02782831A 2001-12-20 2002-10-04 Dosierpumpe Expired - Lifetime EP1456539B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10162773A DE10162773A1 (de) 2001-12-20 2001-12-20 Dosierpumpe
DE10162773 2001-12-20
PCT/EP2002/011151 WO2003054392A1 (de) 2001-12-20 2002-10-04 Dosierpumpe

Publications (2)

Publication Number Publication Date
EP1456539A1 EP1456539A1 (de) 2004-09-15
EP1456539B1 true EP1456539B1 (de) 2007-10-31

Family

ID=7710050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02782831A Expired - Lifetime EP1456539B1 (de) 2001-12-20 2002-10-04 Dosierpumpe

Country Status (6)

Country Link
US (1) US20040234377A1 (ja)
EP (1) EP1456539B1 (ja)
JP (1) JP4060273B2 (ja)
AT (1) ATE377149T1 (ja)
DE (2) DE10162773A1 (ja)
WO (1) WO2003054392A1 (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7335003B2 (en) * 2004-07-09 2008-02-26 Saint-Gobain Performance Plastics Corporation Precision dispense pump
DE102005024363B4 (de) * 2005-05-27 2012-09-20 Fresenius Medical Care Deutschland Gmbh Vorrichtung und Verfahren zur Förderung von Flüssigkeiten
DE102005039772A1 (de) * 2005-08-22 2007-03-08 Prominent Dosiertechnik Gmbh Magnetdosierpumpe
US7819642B2 (en) * 2006-08-24 2010-10-26 N.A.H. Zabar Ltd. Reciprocatory fluid pump
JP4425253B2 (ja) * 2006-08-30 2010-03-03 ダイキン工業株式会社 油圧ユニットおよび油圧ユニットにおけるモータの速度制御方法
DE102006045450B4 (de) * 2006-09-19 2008-07-10 Lechler Gmbh Spritzvorrichtung zum Versprühen von Spritzmitteln sowie Verfahren zum Betreiben einer solchen Spritzvorrichtung
US8479784B2 (en) 2007-03-15 2013-07-09 The Coca-Cola Company Multiple stream filling system
US9394153B2 (en) 2007-03-15 2016-07-19 The Coca-Cola Company Multiple stream filling system
US9865023B2 (en) 2008-02-04 2018-01-09 The Coca-Cola Company Methods of creating customized beverage products
DE102008031049A1 (de) * 2008-06-30 2009-12-31 Lewa Gmbh Vorrichtung zum Portionieren förderbarer Medien
CH702437A1 (fr) * 2009-12-23 2011-06-30 Jean-Denis Rochat Pompe volumetrique alternative a membrane pour usage medical.
CA2730696C (en) * 2010-02-02 2018-09-18 Peter Van De Velde Hydraulic fluid control system for a diaphragm pump
EP2362100B2 (de) * 2010-02-18 2020-07-08 Grundfos Management A/S Dosierpumpenaggregat sowie Verfahren zur Steuerung eines Dosierpumpenaggregates
DE102010003218A1 (de) * 2010-03-24 2011-09-29 Prominent Dosiertechnik Gmbh Verfahren zum Steuern und/oder Regeln einer Dosierpumpe
US8899450B2 (en) * 2010-05-18 2014-12-02 Aktiebolaget Electrolux Battery-powered dosing device
US20120107150A1 (en) * 2010-11-02 2012-05-03 Bogdan Pawlak Radial Diaphragm Pump
US10280916B2 (en) * 2011-07-28 2019-05-07 Ecolab Usa Inc. Diaphragm pump for dosing a fluid and an according method
DE102016109318A1 (de) * 2016-05-20 2017-11-23 Max Wild Gmbh Kolbenpumpe
EP3617235A4 (en) 2017-04-28 2020-12-16 Ajinomoto Co., Inc. ASSOCIATION WITH A SUBSTANCE WITH AFFINITY TO SOLUBLE PROTEIN, FITTABLE PART AND REACTIVE GROUP OR SALT THEREOF
DE102017112975B3 (de) 2017-06-13 2018-10-25 KNF Micro AG Membranpumpe
FR3074544B1 (fr) * 2017-12-05 2021-10-22 Ams R&D Sas Circulateur a membrane ondulante pilotee
CN108374780A (zh) * 2018-05-10 2018-08-07 无锡市天利流体科技有限公司 高精度智能蠕动泵
EP3591226B1 (en) * 2018-07-06 2022-02-16 Grundfos Holding A/S Metering pump and method for controlling a metering pump
DE102018212985A1 (de) * 2018-08-03 2020-02-06 Robert Bosch Gmbh Pumpe und Verfahren zu ihrem Betrieb sowie zum Ermitteln eines oberen und/oder unteren Totpunkts
US11480163B2 (en) 2018-08-27 2022-10-25 Saudi Arabian Oil Company Pumping system with control features for controlling stroke duration and injection volume
DE102021205735A1 (de) 2021-06-08 2022-12-08 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Ansteuern einer Pumpe, Verfahren zum Trainieren eines neurona-len Netzes und Fluid-Versorgungssystem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525557A1 (de) * 1995-07-13 1997-01-16 Knf Flodos Ag Dosierpumpe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2113315B (en) * 1982-01-11 1986-05-21 Hewlett Packard Co An improved high pressure meter pump
FR2624919B1 (fr) * 1987-12-17 1990-04-27 Milton Roy Dosapro Dispositif de reglage du debit d'une pompe doseuse alternative
DE3801157A1 (de) * 1988-01-16 1989-08-03 Hagen W Dieter Elektronisch gesteuerte kolbendosierpumpe bzw. maschine
US4950134A (en) * 1988-12-27 1990-08-21 Cybor Corporation Precision liquid dispenser
US5314164A (en) * 1992-07-17 1994-05-24 Mks Instruments, Inc. Pivotal diaphragm, flow control valve
DE19961852A1 (de) * 1999-12-22 2001-06-28 Continental Teves Ag & Co Ohg Pumpe mit geregeltem Ventil
EP1132616A1 (de) * 2000-03-10 2001-09-12 BMO Treuhand und Verwaltung AG Dosierpumpe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525557A1 (de) * 1995-07-13 1997-01-16 Knf Flodos Ag Dosierpumpe

Also Published As

Publication number Publication date
DE50211149D1 (de) 2007-12-13
DE10162773A1 (de) 2003-07-10
ATE377149T1 (de) 2007-11-15
JP2005513340A (ja) 2005-05-12
EP1456539A1 (de) 2004-09-15
US20040234377A1 (en) 2004-11-25
JP4060273B2 (ja) 2008-03-12
WO2003054392A1 (de) 2003-07-03

Similar Documents

Publication Publication Date Title
EP1456539B1 (de) Dosierpumpe
DE3850688T2 (de) Flüssigkeitsversorgungssystem mit Kompensation des Flussdefizits.
DE3785207T2 (de) Pumpvorrichtung zur abgabe von fluessigkeit bei hohem druck.
EP1754891B1 (de) Motordosierpumpe
DE60214935T2 (de) Kraftübertragungssteuerung zur Vermeidung eines Motorabwürgens in Nutzfahrzeugen
DE102008045524A1 (de) Verfahren zur autonomen Steuerung eines Chemikalien-Einspritzsystems für Öl- und Gas-Bohrlöcher
DE3243349C2 (ja)
DE102013224112B4 (de) Hydromaschine in Axialkolbenbauweise mit einer durch einen Proportionalmagneten verstellbaren Schrägscheiben-Stelleinrichtung
DE3706338A1 (de) Membranpumpvorrichtung
DE2649539A1 (de) Fluessigkeitschromatographie-system
DE10109144A1 (de) Drahstellglied mit Dämpfungsmechanismus
DE102010003218A1 (de) Verfahren zum Steuern und/oder Regeln einer Dosierpumpe
DE3503471A1 (de) Foerdermengen-steuervorrichtung fuer einen kuehlmittelverdichter mit foerdermengen-einstellvorrichtung
DE2649592A1 (de) Fluessigkeitschromatographiesystem
DE102008046562A1 (de) Hydraulischer Linearantrieb
EP1114958B1 (de) Elektromotorisch ansteuerbare Ventileinrichtung
DE3204067C2 (ja)
DE102013008793A1 (de) Elektrohydraulische Pumpenverstellung für eine Verstellpumpe im offenen Hydraulikkreislauf
DE2161218A1 (de) Vorrichtung zur Umwandlung einer Drehbewegung in eine Hin- und Herbewegung
DE2129588C3 (de) Dosierpumpe
WO2009083179A1 (de) Fluidikvorrichtung für kontrolliertes handhaben von flüssigkeiten und fluidiksystem mit einer fluidikvorrichtung
DE2024582A1 (de) Zumeßpumpe mit einem eine Dreh- und Translationsbewegung ausführenden Kolben, für allgemeine Zwecke
EP0628390B1 (de) Dosier- und Förderpumpe und Verwendung einer solchen Pumpe in einer Anlage zur Herstellung eines Giessharzkörpers
DE3729898C2 (ja)
DE4027899C2 (de) Hydraulisches Servosystem für den Linearantrieb eines Kolbens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030625

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

17Q First examination report despatched

Effective date: 20070117

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F04B 43/02 20060101AFI20070614BHEP

Ipc: F04B 13/00 20060101ALI20070614BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 50211149

Country of ref document: DE

Date of ref document: 20071213

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: GACHNANG AG PATENTANWAELTE

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20080207

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080131

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080211

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080331

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080131

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

BERE Be: lapsed

Owner name: KNF FLODOS A.G.

Effective date: 20081031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081004

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081004

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140827

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20141017

Year of fee payment: 13

Ref country code: CH

Payment date: 20141031

Year of fee payment: 13

Ref country code: DE

Payment date: 20141021

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50211149

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20151004

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151004

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151031

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160503

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151102