EP0117969A2 - Dosing piston pump with diaphragm - Google Patents

Dosing piston pump with diaphragm Download PDF

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Publication number
EP0117969A2
EP0117969A2 EP84100026A EP84100026A EP0117969A2 EP 0117969 A2 EP0117969 A2 EP 0117969A2 EP 84100026 A EP84100026 A EP 84100026A EP 84100026 A EP84100026 A EP 84100026A EP 0117969 A2 EP0117969 A2 EP 0117969A2
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EP
European Patent Office
Prior art keywords
piston
insert
metering
pump
pump according
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.)
Granted
Application number
EP84100026A
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German (de)
French (fr)
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EP0117969A3 (en
EP0117969B1 (en
EP0117969B2 (en
Inventor
Walter Eichner
Kay Bödecker
Wolfgang Huber
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Ecolab Engineering GmbH
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Lang Apparatebau GmbH
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Application filed by Lang Apparatebau GmbH filed Critical Lang Apparatebau GmbH
Priority to AT84100026T priority Critical patent/ATE34810T1/en
Publication of EP0117969A2 publication Critical patent/EP0117969A2/en
Publication of EP0117969A3 publication Critical patent/EP0117969A3/en
Publication of EP0117969B1 publication Critical patent/EP0117969B1/en
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Publication of EP0117969B2 publication Critical patent/EP0117969B2/en
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    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • 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

Definitions

  • the invention relates to a piston-diaphragm metering pump with a mechanical-hydraulic, mechanical-pneumatic or electric drive and with a metering piston designed as a plunger and a pre-delivery membrane for metering an additional liquid into the injection point of a main liquid line, in particular into a water line.
  • Metering pumps of this type are used because, on the one hand, due to the high performance of the pre-delivery membrane, good ventilation and suction and, on the other hand, due to the small metering piston in relation to the membrane area in connection with an elastic sealing element, preferably as an 0-ring, exact metering even with different viscosities and Pump back pressure must be guaranteed. From practice, however, it is known that the performance of piston pumps with small dosing quantities depends very much on the function of the sealing elements designed as compression, 0-ring, suction and pressure valves. If wear-promoting products are to be metered using such pumps, it is necessary to replace the sealing elements at relatively short intervals. In the case of pumps previously used, the replacement of the functional elements subject to wear is associated with extensive dismantling of the overall pump, which has to be adjusted again after assembly because of the respective metered quantity.
  • the invention is based on the general task of a simple, fast and si when wear occurs to enable the pump to be repaired without additional readjustment of the metered quantity. Disassembly and assembly should in particular be carried out in such a way that the position of the sealing element assigned to the dosing piston is clearly retained exactly without readjustment.
  • the solution according to the invention is characterized by an exchangeable wear part insert. According to a further invention, this should contain a piston guide element to be snapped into the insert body, which at the same time fixes the position of the piston sealing element which is particularly exposed to wear.
  • the insert should also be assigned a contact edge in the lower part of the pump, to which the piston sealing element is to be precisely aligned with the aid of the piston guide element when mounting the insert.
  • the replaceable wear part insert according to the invention is intended to contain, in addition to the aforementioned elements, in particular the sealing elements which seal the metering line against the pre-feed chamber of the pump or the atmosphere, and above all also the pump suction valve and / or the metering check valve.
  • the sealing elements which seal the metering line against the pre-feed chamber of the pump or the atmosphere, and above all also the pump suction valve and / or the metering check valve.
  • the metering pump shown in section in the drawing and generally designated 1 has a metering piston 2 designed as a plunger piston with a pre-delivery membrane.
  • metering piston 2 when the metering piston 2 moves in the direction of the arrow 4, metering liquid is sucked in via the suction pipe 5, the ball check valve, which is denoted overall by 6, and the metering cylinder chamber 7 into the pre-delivery chamber 8 of the pump.
  • the metering piston 2 is moved back in the direction of the arrow 9
  • metering liquid present in the metering cylinder space 7 is expelled into the metering line 12 in the direction of the arrow 11 via the metering check valve 10, which is designed in particular as a ring valve.
  • Such a configuration of the pump 1 makes it possible to deliver the pre-delivery quantity not only through a separate suction channel directly into the pre-delivery chamber 8 but also through the metering cylinder room 7. This enables particularly quick and safe self-venting and thus quick and exact dosing.
  • the individual parts of the pump 1 that are mainly exposed to wear are combined in a separate wear part insert 13.
  • the insert 13 therefore contains a piston guide element 18, which is preferably to be engaged in the insert body via a bead 19 and is used to fix the piston sealing element 17 which is essential for the function of the pump 1.
  • the body of the pump 1 is to contain a guide 20, preferably designed as a bore, with a contact edge 21 in the pump lower part 22 that is precisely aligned with the metering piston 2.
  • the contact edge 21 must be aligned so that the guide 20 receives the insert 13 including the piston sealing element 17 exactly in the correct position relative to the metering piston 2 without further adjustment.
  • sealing elements 23 and 24, in particular 0-rings, are expediently provided, which seal the metering line against the pre-delivery chamber 8 or atmosphere.
  • the assembly of the insert 13 according to the invention is made easier if gowns for fixing the ball check valve 6 are also provided in the non-installed state.
  • a press-in ring 25, a sealing element 26 and an intermediate disk 27 are used for this purpose, which also fix the retaining ring 15 of the ball 16 towards the rear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Closures For Containers (AREA)

Abstract

1. Piston-diaphragm metering pump (1) with mechanico-hydraulic, mechanico-pneumatic or electrical drive and with a metering piston (2) constructed as plunger piston as well as a forward conveying diaphragm (3) for the metering of an additive liquid into the inoculation point of a main liquid duct, in particular into a water duct, and an exchangeable insert part (13) subject to wear, characterized thereby, that the exchangeable insert part (13) subject to wear contains the elements pump suction valve (6), metering non-return valve (10) and piston seal element (17), which are subject to significant wear.

Description

Die Erfindung betrifft eine Kolben-Membrandosierpumpe mit mechanisch-hydraulischem, mechanisch-pneumatischem oder elektrischem Antrieb und mit als Tauchkolben ausgebildetem Dosierkolben sowie Vorfördermembran zum Eindosieren einer Zusatzflüssigkeit in die Impfstelle einer Hauptflüssigkeitsleitung, insbesondere in eine Wasserleitung.The invention relates to a piston-diaphragm metering pump with a mechanical-hydraulic, mechanical-pneumatic or electric drive and with a metering piston designed as a plunger and a pre-delivery membrane for metering an additional liquid into the injection point of a main liquid line, in particular into a water line.

Dosierpumpen dieser Art werden eingesetzt, weil einerseits durch die hohe Leistung der Vorfördermembran eine gute Entlüftung sowie Ansaugung und andererseits durch den im Verhältnis zur Membranfläche kleinen Dosierkolben in Verbindung mit einem elastischen Dichtelement, vorzugsweise als 0-Ring, ein exaktes Dosieren auch bei unterschiedlichen Viskositäten und Pumpengegendruck zu gewährleisten ist. Aus der Praxis ist jedoch bekannt, daß die Leistung von Kolbenpumpen bei kleinen Dosiermengen sehr wesentlich von der Funktion der als Kompressions- 0-Ring-, Saug- und Druckventil ausgebildeten Dichtelemente abhängt. Sollen mit Hilfe solcher Pumpen verschleißfördernde Produkte dosiert werden, ist es erforderlich, die Dichtelemente in relativ kurzen Abständen auszuwechseln. Bei bisher verwendeten Pumpen ist das Auswechseln der verschleißbehafteten Funktionselemente mit einer weitgehenden Demontage der Gesamtpumpe verbunden, die nach dem Montieren erneut wegen der jeweiligen Dosiermenge zu justieren ist.Metering pumps of this type are used because, on the one hand, due to the high performance of the pre-delivery membrane, good ventilation and suction and, on the other hand, due to the small metering piston in relation to the membrane area in connection with an elastic sealing element, preferably as an 0-ring, exact metering even with different viscosities and Pump back pressure must be guaranteed. From practice, however, it is known that the performance of piston pumps with small dosing quantities depends very much on the function of the sealing elements designed as compression, 0-ring, suction and pressure valves. If wear-promoting products are to be metered using such pumps, it is necessary to replace the sealing elements at relatively short intervals. In the case of pumps previously used, the replacement of the functional elements subject to wear is associated with extensive dismantling of the overall pump, which has to be adjusted again after assembly because of the respective metered quantity.

Der Erfindung liegt die allgemeine Aufgabe zugrunde, bei Auftreten des Verschleißes ein einfaches, schnelles und sicheres Instandsetzen der Pumpe ohne zusätzliche Neueinstellung der Dosiermenge zu ermöglichen. Demontage und Montage sollen insbesondere so auszuführen sein, daß die Position des dem Dosierkolben zugeordneten Dichtelements ohne Neujustierung eindeutig exakt erhalten bleibt. Die erfindungsgemäße Lösung ist gekennzeichnet durch einen auswechselbaren Verschleißteileinsatz. Dieser soll gemäß weiterer Erfindung ein in den Einsatzkörper einzurastendes Kolbenführungselement enthalten, welches zugleich das dem Verschleiß besonders ausgesetzte Kolbendichtelement in seiner Lage fixiert. Dem Einsatz soll ferner eine Anlegekante im Unterteil der Pumpe zugeordnet sein, auf die das Kolbendichtelement mit Hilfe des Kolbenführungselements beim Montieren des Einsatzes exakt auszurichten ist.The invention is based on the general task of a simple, fast and si when wear occurs to enable the pump to be repaired without additional readjustment of the metered quantity. Disassembly and assembly should in particular be carried out in such a way that the position of the sealing element assigned to the dosing piston is clearly retained exactly without readjustment. The solution according to the invention is characterized by an exchangeable wear part insert. According to a further invention, this should contain a piston guide element to be snapped into the insert body, which at the same time fixes the position of the piston sealing element which is particularly exposed to wear. The insert should also be assigned a contact edge in the lower part of the pump, to which the piston sealing element is to be precisely aligned with the aid of the piston guide element when mounting the insert.

Durch die Erfindung wird erreicht, daß der Wechsel des Einsatzes kein Neujustieren der Pumpe erfordert, weil wegen der dem Einsatzkörper zugeordneten Anlegekante am Pumpenunterteil und wegen der durch das Kolbenführungselement gewährleisteten definierten Lage des Kolbendichtelements dessen Relativstellung zum Dosierkolben nach jedem Auswechseln des Einsatzes eindeutig exakt erhalten bleibt.With the invention it is achieved that the change of the insert does not require readjustment of the pump, because because of the contact edge assigned to the insert body on the lower part of the pump and because of the defined position of the piston sealing element guaranteed by the piston guide element, its relative position to the metering piston is clearly exactly maintained after each replacement of the insert .

Der erfindungsgemäße, auswechselbare Verschleißteileinsatz soll neben den vorgenannten Elementen, insbesondere den die Dosierleitung gegen die Vorförderkammer der Pumpe bzw. die Atmosphäre abdichtenden Dichtelementen, vor allem auch das Pumpensaugventil und/oder das Dosierrückschlagventil enthalten. Für die Handhabung des Einsatzteils ist es günstig, wenn nicht nur auf der Kolbenseite ein einzurastendes Kolbenführungselement, sondern auch auf der Saugseite Mittel zum gegenseitigen Festlegen der auszuwechselnden Einzelteile vorgesehen werden. Insbesondere ist ein Einpreßring mit Dichtelement zum Festlegen des Saugventils im Einsatzkörper auch im nicht eingebauten Zustand vorteilhaft. Anhand der beiliegenden, schematischen Zeichnung eines Ausführungsbeispiels werden weitere Einzelheiten der Erfindung erläutert.The replaceable wear part insert according to the invention is intended to contain, in addition to the aforementioned elements, in particular the sealing elements which seal the metering line against the pre-feed chamber of the pump or the atmosphere, and above all also the pump suction valve and / or the metering check valve. For the handling of the insert part, it is favorable if means not only on the piston side to engage a piston guide element, but also on the suction side means for mutually fixing the individual parts to be replaced be provided. In particular, a press-in ring with a sealing element for fixing the suction valve in the insert body is advantageous even when it is not installed. Further details of the invention are explained on the basis of the enclosed, schematic drawing of an exemplary embodiment.

Die in der Zeichnung im Schnitt dargestellte und insgesamt mit 1 bezeichnete Dosierpumpe besitzt einen als Tauchkolben ausgebildeten Dosierkolben 2 mit Vorfördermembran. Im hier interessierenden Zusammenhang wird bei Bewegung des Dosierkolbens 2 in Pfeilrichtung 4 Dosierflüssigkeit über das Saugrohr 5, das insgesamt mit 6 bezeichnete Kugelrückschlagventil und den Dosierzylinderraum 7 in den Vorförderraum 8 der Pumpe angesaugt. Beim Zurückbewegen des Dosierkolbens 2 in Pfeilrichtung 9 wird im Dosierzylinderraum 7 vorhandene Dosierflüssigkeit über das insbesondere als Ringventil ausgebildete Dosierrückschlagventil 10 in Pfeilrichtung 11 in die Dosierleitung 12 ausgestoßen. Durch eine solche Ausgestaltung der Pumpe 1 ist es möglich, die Vorfördermenge nicht nur durch einen separaten Saugkanal direkt in den Vorförderraum 8 sondern auch durch den Dosierzylinderraum 7 zu fördern. Dadurch wird eine besonders schnelle und sichere Selbstentlüftung und damit eine schnelle sowie exakte Dosierung ermöglicht.The metering pump shown in section in the drawing and generally designated 1 has a metering piston 2 designed as a plunger piston with a pre-delivery membrane. In the context of interest here, when the metering piston 2 moves in the direction of the arrow 4, metering liquid is sucked in via the suction pipe 5, the ball check valve, which is denoted overall by 6, and the metering cylinder chamber 7 into the pre-delivery chamber 8 of the pump. When the metering piston 2 is moved back in the direction of the arrow 9, metering liquid present in the metering cylinder space 7 is expelled into the metering line 12 in the direction of the arrow 11 via the metering check valve 10, which is designed in particular as a ring valve. Such a configuration of the pump 1 makes it possible to deliver the pre-delivery quantity not only through a separate suction channel directly into the pre-delivery chamber 8 but also through the metering cylinder room 7. This enables particularly quick and safe self-venting and thus quick and exact dosing.

Erfindungsgemäß werden die hauptsächlich dem Verschleiß ausgesetzten Einzelteile der Pumpe 1 in einem gesonderten Verschleißteileinsatz 13 zusammengefaßt. Dieses soll das aus 0-Ringdichtung 14, Haltering 15 und Kugel 16 bestehende Pumpensaugventil bzw. Kugelrückschlagventil 6 und das vorzugsweise als Rinaventil mit geringem Totraum ausgebildete Dosierrückschlagventil 10 enthalten. richtig ist auch die Integration des Kolbendichtelements 17 in den Einsatz 13. Durch das Zusammenfassen der vorgenannten für die Funktion der Pumpe wichtigen aber am meisten dem Verschleiß ausgesetzten Dichtelemente in dem Verschleißteileinsatz 13 ist es möglich, die Pumpe mit wenigen Handgriffen durch Austausch des beispielsweise als Patrone ausgebildeten Einsatzes 13 nach aufgetretenem Verschleiß wieder mit der erforderlichen Exaktheit funktionsfähig zu machen.According to the invention, the individual parts of the pump 1 that are mainly exposed to wear are combined in a separate wear part insert 13. This should contain the pump suction valve or ball check valve 6 consisting of 0-ring seal 14, retaining ring 15 and ball 16 and the metering check valve 10, which is preferably designed as a Rina valve with a small dead space. is also correct the integration of the piston sealing element 17 in the insert 13. By summarizing the above for the function of the Pump but important sealing elements exposed to wear in the wear part insert 13, it is possible to make the pump functional again with the required accuracy with a few hand movements by replacing the insert 13, for example, designed as a cartridge, after wear has occurred.

Für die Erfindung ist es wesentlich, daß der Wechsel des Einsatzes 13 kein Neujustieren der Pumpe 1 erfordert. Der Einsatz 13 enthält daher ein Kolbenführungselement 18, das vorzugsweise in dem Einsatzkörper über einen Wulst 19 einzurasten ist und zum Fixieren des für die Funktion der Pumpe 1 wesentlichen Kolbendichtelements 17 dient. Ferner soll der Körper der Pumpe 1 eine vorzugsweise als Bohrung ausgebildete Führung 20 mit auf den Dosierkolben 2 exakt ausgerichteter Anlegekante 21 im Pumpenunterteil 22 enthalten. Die Anlegekante 21 muß so ausgerichtet sein, daß die Führung 20 den Einsatz 13 einschließlich des Kolbendichtelements 17 ohne weiteres Justieren exakt in der richtigen Stellung relativ zum Dosierkolben 2 aufnimmt. Auf der Außenfläche des Einsatzes 13 werden zweckmäßig Dichtelemente 23 und 24, insbesondere 0-Ringe, vorgesehen, die die Dosierleitung gegen die Vorförderkammer 8 bzw. Atmosphäre abdichten.It is essential for the invention that the change of the insert 13 does not require readjustment of the pump 1. The insert 13 therefore contains a piston guide element 18, which is preferably to be engaged in the insert body via a bead 19 and is used to fix the piston sealing element 17 which is essential for the function of the pump 1. Furthermore, the body of the pump 1 is to contain a guide 20, preferably designed as a bore, with a contact edge 21 in the pump lower part 22 that is precisely aligned with the metering piston 2. The contact edge 21 must be aligned so that the guide 20 receives the insert 13 including the piston sealing element 17 exactly in the correct position relative to the metering piston 2 without further adjustment. On the outer surface of the insert 13, sealing elements 23 and 24, in particular 0-rings, are expediently provided, which seal the metering line against the pre-delivery chamber 8 or atmosphere.

Die Montage des erfindungsgemäßen Einsatzes 13 wird erleichtert, wenn Kittel zum Festlegen des Kugelrückschlagventils 6 auch im nicht eingebauten Zustand vorgesehen werden. Im Ausführungsbeispiel dienen hierzu ein Einpreßring 25, ein Dichtelement 26 und eine Zwischenscheibe 27, die den Haltering 15 der Kugel 16 auch nach der Rückseite hin fixieren.The assembly of the insert 13 according to the invention is made easier if gowns for fixing the ball check valve 6 are also provided in the non-installed state. In the exemplary embodiment, a press-in ring 25, a sealing element 26 and an intermediate disk 27 are used for this purpose, which also fix the retaining ring 15 of the ball 16 towards the rear.

BezugszeichenlisteReference symbol list

  • 1 = Pumpe1 = pump
  • 2 = Kolben2 = piston
  • 3 = Vorfördermembran3 = pre-conveyor membrane
  • 4 = Pfeil4 = arrow
  • 5 = Saugrohr5 = suction pipe
  • 6 = Kugelrückschlagventil6 = ball check valve
  • 7 = Dosierzylinderraum7 = dosing cylinder space
  • 8 = Vorförderraum8 = pre-conveying space
  • 9 = Pfeil9 = arrow
  • 10 = Dosierrückschlagventil10 = metering check valve
  • 11 = Pfeil11 = arrow
  • 12 = Dosierleitung12 = dosing line
  • 13 = Verschleißteileinsatz13 = wear part insert
  • 14 = 0-Ringdichtung14 = 0-ring seal
  • 15 = Haltering15 = retaining ring
  • 16 = Kugel16 = ball
  • 17 = Kolbendichtelement17 = piston sealing element
  • 18 = Kolbenführungselement18 = piston guide element
  • 19 = Wulst (18)19 = bead (18)
  • 20 = Führung20 = leadership
  • 21 = Anlegekante21 = contact edge
  • 22 = Pumpenunterteil22 = lower part of the pump
  • 23 = Dichtelement23 = sealing element
  • 24 = Dichtelement24 = sealing element
  • 25 = Einpreßring25 = press ring
  • 26 = Dichtelement26 = sealing element
  • 27 = Zwischenscheibe27 = washer

Claims (8)

1. Kolben-Membrandosierpumpe (1) mit mechanisch-hydraulischem, mechanisch-pneumatischem oder elektrischem Antrieb und mit als Tauchkolben ausgebildetem Dosierkolben (2) sowie Vorfördermembran (3) zum Eindosieren einer Zusatzflüssigkeit in die Impfstelle einer Hauptflüssigkeitsleitung, insbesondere in eine Wasserleitung, gekennzeichnet durch einen auswechselbaren Verschleißteileinsatz (13).1. Piston diaphragm metering pump (1) with mechanical-hydraulic, mechanical-pneumatic or electric drive and with a metering piston designed as a plunger (2) and pre-delivery membrane (3) for metering an additional liquid into the injection point of a main liquid line, in particular into a water line, characterized by an exchangeable wear part insert (13). 2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß der Einsatz (13) das vorzugsweise als Kugelventil bestehend aus Haltering (15), 0-Ring (14) und Kugel (16) ausgebildete Kugelrückschlagventil (16) des Saugteils enthält.2. Pump according to claim 1, characterized in that the insert (13) contains the preferably as a ball valve consisting of retaining ring (15), 0-ring (14) and ball (16) designed ball check valve (16) of the suction part. 3. Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Einsatz (13) das vorzugsweise als Ringventil mit geringem Totraum ausgebildete Dosierrückschlagventil (10) enthält.3. Pump according to claim 1 or 2, characterized in that the insert (13) contains the preferably designed as a ring valve with a small dead space metering check valve (10). 4. Pumpe nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Einsatz (13) das vorzugsweise als 0-Ring ausgebildete Kolbendichtelement (17) enthält.4. Pump according to one or more of claims 1 to 3, characterized in that the insert (13) contains the piston sealing element (17) which is preferably designed as an 0-ring. 5. Pumpe nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daij der Einsatz (13) ein vorzugsweise in den Einsatzkörper (13) einzurastendes Kolbenführungselement (18) enthält.5. Pump according to one or more of claims 1 to 4, characterized in that the insert (13) contains a preferably in the insert body (13) to be locked piston guide element (18). 6. Pumpe nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß dem Einsatz (13) eine vorzugsweise als Bohrung ausgebildete Führung (20) und eine Anlagekante (21) im Pumpenunterteil (22) zugeordnet sind und daß Führung (20) und Anlegekante (21) eine exakt definierte Relativlage von Kolbendichtelement (17) und Kolben (2) gewährleisten.6. Pump according to one or more of claims 1 to 5, characterized in that the insert (13) is preferred as a bore formed guide (20) and a contact edge (21) in the pump lower part (22) are assigned and that guide (20) and contact edge (21) ensure a precisely defined relative position of the piston sealing element (17) and piston (2). 7. Pumpe nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Einsatz (13) die die Dosierleitung (12) gegen die Vorförderkammer (8) und die Atmosphäre abdichtenden Dichtelemente (23, 24), vorzugsweise als 0-Ringe enthält.7. Pump according to one or more of claims 1 to 6, characterized in that the insert (13) sealing the metering line (12) against the pre-delivery chamber (8) and the atmosphere sealing elements (23, 24), preferably as 0-rings contains. 8. Pumpe nach einem oder mehreren der Ansprüche 1 bis 7 gekennzeichnet durch einen Einpreßring (25) mit Dichtelement (26) zum Festlegen des Kugelrückschlagventils (16) im Einsatz (13) auch im nicht eingebauten Zustand.8. Pump according to one or more of claims 1 to 7, characterized by a press-in ring (25) with sealing element (26) for fixing the ball check valve (16) in use (13), even when not installed.
EP84100026A 1983-01-08 1984-01-03 Dosing piston pump with diaphragm Expired - Lifetime EP0117969B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84100026T ATE34810T1 (en) 1983-01-08 1984-01-03 PISTON DIAPHRAGM DOSING PUMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3300461 1983-01-08
DE3300461A DE3300461A1 (en) 1983-01-08 1983-01-08 PISTON DIAPHRAGM PUMP

Publications (4)

Publication Number Publication Date
EP0117969A2 true EP0117969A2 (en) 1984-09-12
EP0117969A3 EP0117969A3 (en) 1986-05-14
EP0117969B1 EP0117969B1 (en) 1988-06-01
EP0117969B2 EP0117969B2 (en) 1994-01-05

Family

ID=6187907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84100026A Expired - Lifetime EP0117969B2 (en) 1983-01-08 1984-01-03 Dosing piston pump with diaphragm

Country Status (3)

Country Link
EP (1) EP0117969B2 (en)
AT (1) ATE34810T1 (en)
DE (2) DE3300461A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141068A3 (en) * 1983-08-11 1986-05-14 Lang Apparatebau Gmbh Dosing pump having a plunger
EP0316537A1 (en) * 1987-11-13 1989-05-24 Grünbeck Wasseraufbereitung GmbH Dosing pump
EP0415259A1 (en) * 1989-08-28 1991-03-06 Grünbeck Wasseraufbereitung GmbH Dosing pump
GB2366335A (en) * 2000-08-22 2002-03-06 Imi Cornelius Dispense valve
KR101150550B1 (en) * 2005-07-29 2012-06-11 로베르트 보쉬 게엠베하 Drive belt

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741968C3 (en) * 1987-12-11 2002-11-14 Huebers Verfahrenstech metering
DE9109288U1 (en) * 1991-07-27 1992-09-03 Verpaco AG, Hünenberg Multiple dosing station for aseptic filling of products
IT1259323B (en) * 1992-03-10 1996-03-12 MONOBLOCK DEVICE FOR USE ON A VEHICLE USED FOR CLEANING THE SNOW AND ICE ROADS
US9353716B2 (en) 2011-05-13 2016-05-31 Mikuni Corporation High-pressure fuel pump device

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DE330902C (en) * 1919-11-05 1920-12-23 Carl Schmidt Single-acting plunger pump with insert cylinder
DE1009029B (en) * 1953-10-26 1957-05-23 Jean Louis Gratzmuller Piston pump
US3223040A (en) * 1962-04-09 1965-12-14 Stewart Warner Corp Two component pumping and proportioning system
US4242063A (en) * 1979-06-13 1980-12-30 Lear Siegler, Inc. High pressure multi-cylinder pump
EP0073940A2 (en) * 1981-09-03 1983-03-16 Grünbeck Wasseraufbereitung GmbH Proportioning pump

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US2766701A (en) * 1953-03-09 1956-10-16 Nat Supply Co Plunger and cylinder for pump
US3680985A (en) * 1970-12-28 1972-08-01 Mec O Matic The Pump
BE800023A (en) * 1973-05-25 1973-09-17 Unitas Sa PUMP FOR PUMPING SMALL QUANTITIES OF DOSED LIQUIDS,

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE330902C (en) * 1919-11-05 1920-12-23 Carl Schmidt Single-acting plunger pump with insert cylinder
DE1009029B (en) * 1953-10-26 1957-05-23 Jean Louis Gratzmuller Piston pump
US3223040A (en) * 1962-04-09 1965-12-14 Stewart Warner Corp Two component pumping and proportioning system
US4242063A (en) * 1979-06-13 1980-12-30 Lear Siegler, Inc. High pressure multi-cylinder pump
EP0073940A2 (en) * 1981-09-03 1983-03-16 Grünbeck Wasseraufbereitung GmbH Proportioning pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141068A3 (en) * 1983-08-11 1986-05-14 Lang Apparatebau Gmbh Dosing pump having a plunger
EP0316537A1 (en) * 1987-11-13 1989-05-24 Grünbeck Wasseraufbereitung GmbH Dosing pump
EP0415259A1 (en) * 1989-08-28 1991-03-06 Grünbeck Wasseraufbereitung GmbH Dosing pump
GB2366335A (en) * 2000-08-22 2002-03-06 Imi Cornelius Dispense valve
GB2366335B (en) * 2000-08-22 2004-09-01 Imi Cornelius Valve
KR101150550B1 (en) * 2005-07-29 2012-06-11 로베르트 보쉬 게엠베하 Drive belt

Also Published As

Publication number Publication date
EP0117969A3 (en) 1986-05-14
DE3300461A1 (en) 1984-08-30
EP0117969B1 (en) 1988-06-01
EP0117969B2 (en) 1994-01-05
ATE34810T1 (en) 1988-06-15
DE3471721D1 (en) 1988-07-07

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