EP0984164A2 - Diaphragm pump - Google Patents

Diaphragm pump Download PDF

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Publication number
EP0984164A2
EP0984164A2 EP99113882A EP99113882A EP0984164A2 EP 0984164 A2 EP0984164 A2 EP 0984164A2 EP 99113882 A EP99113882 A EP 99113882A EP 99113882 A EP99113882 A EP 99113882A EP 0984164 A2 EP0984164 A2 EP 0984164A2
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EP
European Patent Office
Prior art keywords
pump head
pump
diaphragm piston
head elements
diaphragm
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
EP99113882A
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German (de)
French (fr)
Other versions
EP0984164B1 (en
EP0984164A3 (en
Inventor
Thomas Dr. Van Hamme
Uwe Schade
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.)
BRAN and LUEBBE
SPX Flow Technology Germany GmbH
Original Assignee
BRAN and LUEBBE
Bran und Luebbe GmbH
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Publication of EP0984164A2 publication Critical patent/EP0984164A2/en
Publication of EP0984164A3 publication Critical patent/EP0984164A3/en
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Publication of EP0984164B1 publication Critical patent/EP0984164B1/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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston

Definitions

  • the invention relates to a diaphragm piston pump according to the Preamble of claim 1.
  • Such a diaphragm piston pump is from the DE-C2-39 03 049 known.
  • the membrane is here between the "covers" containing the delivery chambers clamped. This is supposed to be an inexpensive construction be created.
  • the invention is based on the object of a diaphragm piston pump of the type mentioned at the outset to create the is compact, allows modular construction, and is inexpensive to manufacture.
  • the lids are attached in several pump head elements divided up. It is basically a pump head element more required than pistons present in the engine are. These pumphead elements then become like this arranged laterally side by side that the second pump head element the lid and the delivery chamber for the first Pump head element, etc., depending on the number of pump head elements, forms.
  • the first pump head element arranged in series Pump head elements is then just a hydraulic housing, whereas the subsequent hydraulic housings and Cover with delivery chamber are.
  • the last one, i.e. the n + 1 pump head element is then only a cover with a delivery chamber.
  • the Membranes are between the pump head elements clamped. They are parallel to the longitudinal axis of the pistons aligned. The levels in which the membranes are clamped are, and the connection levels between each Form pump head elements, run parallel to the Longitudinal axis of the pistons.
  • the pump head elements are constructed similarly (only the first is just hydraulic housing and the last is only Cover), so that the most varied pump heads Have it assembled in the manner of a modular system.
  • the structure is very compact because all pump head elements on the Front of the engine to be installed.
  • the pump head elements can be used in different ways, for example connected by expansion screws become. But it is also possible to use other, non-positive Connections, for example with hydraulic or pneumatic provide force introduction.
  • the pressure and suction lines can be advantageously and the working valves in the pump head elements integrate. As a result, the compact design is still improved.
  • FIG. 1 Various embodiments are shown in the drawing, where the pump head is on the front an engine - in the illustrated embodiments with three pistons 1 - is attached.
  • the engine is not shown in detail.
  • the piston 1, which acts as a plunger are formed, dive in the embodiment of FIG. 1 directly into the pump head 5.
  • the working space 2 is filled in the usual way with a hydraulic medium.
  • the individual delivery chambers 4 are hydraulically connected in parallel. Each conveying chamber 4 is passed through by the working space a membrane 3 separated.
  • the pump head 5 is now in a number of pump head elements 5a, 5b, 5b and 5c divided. It is straightforward recognizable that the first pump head element 5a is only a Hydraulic element is. For this first pump head element 5a the second pump head element 5b forms the cover with the associated delivery chamber. Between the two pump head elements 5a and 5b, the membrane 3 is clamped. Corresponding This modular principle is based on the number of pistons continue to the last pump head element 5c, which is actually just a lid and just a feed chamber 4 contains, and with the last pump head element 5b clamps a membrane 3.
  • the pistons 1 are immersed not directly into the pump head, but it is a special guide housing 7 between the engine and pump head interposed. This is an extension to a Engine possible, the cylinder spacing with the Match the dimensions of the pump head elements.
  • Fig. 3 is a section along the line III-III of Fig. 2, wherein the pressure and suction lines 8.9 in the Pump head elements are integrated as well as the working valves 10. This is a particularly elegant solution. Of course it is also possible to use these lines and relocate the valves outside and with the help of appropriate To connect connecting flanges.
  • This homogenizer is a homogenizing valve in the form shown, formed from a stamp 11, the valve seat 12 and one Valve actuation 13. With valve actuation, a axial force is applied to the stamp, which is mechanical (e.g. with a compression spring), hydraulic or pneumatic can be generated. It is also possible to have different designs Homogenizers, e.g. Orifices or jet dispersers to integrate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The pump has a pump head divided into components forming the pump chambers and covers as standard units to assemble a pump in a variety of configurations in a compact structure. The membrane piston pump has at least two pump chambers (4) divided by a membrane (3) for fitting to a pump assembly with a number of pistons (1). The pump head, with the membranes and pump chambers and covers, is divided into pump head components (5a-5c) with one more than the number of chambers. The pump head components are next to each other in a row, where alternate units (5b) form the cover for the preceding component (5a) with the chamber (4) for the preceding unit (5a) when fitted in place. The membranes (3) are tensed between the pump head components (5a-5c), parallel to the stroke axes of the pistons (1), on a plane at right angles to the end side of the assembly formed by the pump heads (5a-5c).

Description

Die Erfindung betrifft eine Membrankolbenpumpe nach dem Oberbegriff des Anspruches 1.The invention relates to a diaphragm piston pump according to the Preamble of claim 1.

Eine derartige Membrankolbenpumpe ist aus der DE-C2-39 03 049 bekannt.Such a diaphragm piston pump is from the DE-C2-39 03 049 known.

Bei dieser bekannten Membrankolbenpumpe sind die Förderkammern - dort als Pumpenarbeitsräume bezeichnet - an verschiedenen Seiten des die Zylinder für die Kolben enthaltenden Hydraulikgehäuses angeordnet. Die Membran wird hierbei zwischen den die Förderkammern enthaltenden "Deckeln" eingespannt. Hierdurch soll eine preisgünstige Konstruktion geschaffen werden.In this known diaphragm piston pump, the delivery chambers - referred to there as pump work rooms - at various Sides of the cylinder containing the pistons Hydraulic housing arranged. The membrane is here between the "covers" containing the delivery chambers clamped. This is supposed to be an inexpensive construction be created.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Membrankolbenpumpe der eingangs genannten Art zu schaffen, die kompakt aufgebaut ist, einen baukastenmäßigen Aufbau erlaubt, und dabei preisgünstig herzustellen ist. The invention is based on the object of a diaphragm piston pump of the type mentioned at the outset to create the is compact, allows modular construction, and is inexpensive to manufacture.

Diese Aufgabe wird grundsätzlich durch das Kennzeichen des Anspruches 1 gelöst.This task is fundamentally characterized by the Claim 1 solved.

Erfindungsgemäß wird der Pumpenkopf, der die Membranen und die Förderkammern aufweist und an dem bei herkömmlicher Bauart die Deckel befestigt sind, in mehrere Pumpenkopfelemente aufgeteilt. Es ist grundsätzlich ein Pumpenkopfelement mehr erforderlich als Kolben in dem Triebwerk vorhanden sind. Diese Pumpenkopfelemente werden dann derart seitlich nebeneinander angeordnet, daß das zweite Pumpenkopfelement den Deckel sowie die Förderkammer für das erste Pumpenkopfelement usw., je nach Anzahl der Pumpenkopfelemente, bildet. Das erste Pumpenkopfelement der in Reihe angeordneten Pumpenkopfelemente ist dann nur ein Hydraulikgehäuse, wohingegen die darauffolgenden Hydraulikgehäuse und Deckel mit Förderkammer sind. Das letzte, d.h. das n+1 Pumpenkopfelement ist dann nur Deckel mit Förderkammer. Die Membranen sind jeweils zwischen den Pumpenkopfelementen eingespannt. Sie sind parallel zu der Längsachse der Kolben ausgerichtet. Die Ebenen, in denen die Membranen eingespannt sind, und die Verbindungsebenen zwischen den einzelnen Pumpenkopfelementen bilden, verlaufen parallel zu der Längsachse der Kolben.According to the pump head, which the membranes and has the delivery chambers and on the conventional Design the lids are attached in several pump head elements divided up. It is basically a pump head element more required than pistons present in the engine are. These pumphead elements then become like this arranged laterally side by side that the second pump head element the lid and the delivery chamber for the first Pump head element, etc., depending on the number of pump head elements, forms. The first pump head element arranged in series Pump head elements is then just a hydraulic housing, whereas the subsequent hydraulic housings and Cover with delivery chamber are. The last one, i.e. the n + 1 pump head element is then only a cover with a delivery chamber. The Membranes are between the pump head elements clamped. They are parallel to the longitudinal axis of the pistons aligned. The levels in which the membranes are clamped are, and the connection levels between each Form pump head elements, run parallel to the Longitudinal axis of the pistons.

Die Pumpenkopfelemente sind ähnlich aufgebaut (lediglich das erste ist nur Hydraulikgehäuse und das letzte ist nur Deckel), so daß sich die unterschiedlichsten Pumpenköpfe nach Art eines Baukastens zusammenbauen lassen. Der Aufbau ist sehr kompakt, da sämtliche Pumpenkopfelemente an der Stirnseite des Triebwerkes angebaut werden.The pump head elements are constructed similarly (only the first is just hydraulic housing and the last is only Cover), so that the most varied pump heads Have it assembled in the manner of a modular system. The structure is very compact because all pump head elements on the Front of the engine to be installed.

Es ist entweder möglich, die Membrankolbenpumpe so aufzubauen, wie in Anspruch 2 angegeben, dann entsteht eine sehr kurze und kompakte Baueinheit. Es ist aber auch möglich, ein separates Führungsgehäuse zwischenzuschalten (Anspruch 3), um einen Anbau an Triebwerke zu ermöglichen, deren Zylinderabstände nicht mit den Stichmaßen der Pumpenkopfelemente übereinstimmen.It is either possible to assemble the diaphragm piston pump in such a way as stated in claim 2, then a very arises short and compact unit. But it is also possible Interpose a separate guide housing (claim 3) to allow attachment to engines whose Cylinder spacing does not match the inside dimensions of the pump head elements to match.

Die Pumpenkopfelemente können auf unterschiedliche Weise, beispielsweise durch Dehnschrauben, miteinander verbunden werden. Es ist aber auch möglich, andere, kraftschlüssige Verbindungen, beispielsweise mit hydraulisch oder pneumatisch erzeugter Krafteinleitung vorzusehen.The pump head elements can be used in different ways, for example connected by expansion screws become. But it is also possible to use other, non-positive Connections, for example with hydraulic or pneumatic provide force introduction.

In vorteilhafter Weise lassen sich die Druck- und Saugleitungen und die Arbeitsventile in die Pumpenkopfelemente integrieren. Hierdurch wird die kompakte Bauweise noch verbessert.The pressure and suction lines can be advantageously and the working valves in the pump head elements integrate. As a result, the compact design is still improved.

Es ist auch möglich, eine Homogenisiervorrichtung (Ansprüche 7 oder 8) in eines der Pumpenkopfelemente zu integrieren.It is also possible to use a homogenizer 7 or 8) in one of the pump head elements.

Im folgenden wird die Erfindung unter Hinweis auf die Zeichnung anhand verschiedener Ausführungsbeispiele näher erläutert.In the following the invention with reference to the Drawing based on various embodiments explained.

Es zeigt:

Fig. 1
einen schematischen Schnitt durch eine Ausführungsform einer Membrankolbenpumpe nach der Erfindung;
Fig. 2
einen der Fig. 1 entsprechenden Schnitt, jedoch einer anderen Ausführungsform;
Fig. 3
einen Schnitt gemäß der Linie III-III der Fig. 2 durch eine besondere Ausführungsform mit integrierten Druck- und Saugleitungen und Arbeitsventilen; und
Fig. 4
eine Einzelheit X der Fig. 3 wiederum einer besonderen Ausführungsform.
It shows:
Fig. 1
a schematic section through an embodiment of a diaphragm piston pump according to the invention;
Fig. 2
a section corresponding to Figure 1, but another embodiment.
Fig. 3
a section along the line III-III of Figure 2 by a special embodiment with integrated pressure and suction lines and working valves. and
Fig. 4
a detail X of FIG. 3 in turn a special embodiment.

In der Zeichnung sind verschiedene Ausführungsformen dargestellt, bei denen der Pumpenkopf jeweils an der Stirnseite eines Triebwerkes - bei den dargestellten Ausführungsformen mit drei Kolben 1 - befestigt ist. Das Triebwerk ist nicht im einzelnen dargestellt. Die Kolben 1, die als Plunger ausgebildet sind, tauchen bei der Ausführungsform nach Fig. 1 direkt in den Pumpenkopf 5 ein. Der Hubarbeitsraum 2 ist in üblicher Weise mit einem Hydraulikmedium gefüllt. Die einzelnen Förderkammern 4 sind hydraulisch parallel geschaltet. Jede Förderkammer 4 wird von dem Hubarbeitsraum durch eine Membran 3 getrennt.Various embodiments are shown in the drawing, where the pump head is on the front an engine - in the illustrated embodiments with three pistons 1 - is attached. The engine is not shown in detail. The piston 1, which acts as a plunger are formed, dive in the embodiment of FIG. 1 directly into the pump head 5. The working space 2 is filled in the usual way with a hydraulic medium. The individual delivery chambers 4 are hydraulically connected in parallel. Each conveying chamber 4 is passed through by the working space a membrane 3 separated.

Der Pumpenkopf 5 ist nun in eine Anzahl von Pumpenkopfelementen 5a, 5b, 5b und 5c aufgeteilt. Es ist ohne weiteres erkennbar, daß das erste Pumpenkopfelement 5a lediglich ein Hydraulikelement ist. Für dieses erste Pumpenkopfelement 5a bildet das zweite Pumpenkopfelement 5b den Deckel mit der zugehörigen Förderkammer. Zwischen den beiden Pumpenkopfelementen 5a und 5b ist die Membran 3 eingespannt. Entsprechend der Anzahl der Kolben setzt sich dieses Baukastenprinzip fort bis zu dem letzten Pumpenkopfelement 5c, das eigentlich nur ein Deckel ist und lediglich eine Förderkammer 4 enthält, und mit dem letzten Pumpenkopfelement 5b eine Membran 3 einspannt.The pump head 5 is now in a number of pump head elements 5a, 5b, 5b and 5c divided. It is straightforward recognizable that the first pump head element 5a is only a Hydraulic element is. For this first pump head element 5a the second pump head element 5b forms the cover with the associated delivery chamber. Between the two pump head elements 5a and 5b, the membrane 3 is clamped. Corresponding This modular principle is based on the number of pistons continue to the last pump head element 5c, which is actually just a lid and just a feed chamber 4 contains, and with the last pump head element 5b clamps a membrane 3.

Hierdurch entsteht eine kompakte Bauweise, bei der die Membranen parallel zu der Längs- oder Hubrichtung der Kolben 1 liegen, also senkrecht zu der Ebene verlaufen, an der der Pumpenkopf 5 befestigt ist. Es ist immer ein Pumpenkopfelement mehr erforderlich, als Kolben 1 im Triebwerk vorhanden sind. Die zwischen dem ersten und dem letzten Pumpenkopfelement liegenden Pumpenkopfelemente 5b sind identisch, so daß sich Herstellungsvorteile erzielen lassen. Es ist sogar denkbar, sämtliche Pumpenkopfelemente identisch auszubilden, und dabei lediglich bei dem ersten und letzten Pumpenkopfelement bestimmte "Räume" nicht zu nutzen. Die Pumpenkopfelement 5a bis 5c sind bei dieser Ausführungsform durch Dehnschrauben 6 miteinander verspannt, die für den erforderlichen Kraftschluß sorgen.This creates a compact design in which the Membranes parallel to the longitudinal or stroke direction of the Pistons 1 lie, that is, run perpendicular to the plane the pump head 5 is attached. It is always a pump head element more required than piston 1 in the engine available. The one between the first and the last Pump head elements lying pump head elements 5b identical, so that manufacturing advantages can be achieved. It is even conceivable for all the pump head elements train identically, and only with the first and last pumphead element did not close "spaces" use. The pump head elements 5a to 5c are in this Embodiment by expansion screws 6 together tense, which ensure the required adhesion.

Bei der Ausführungsform nach Fig. 2 tauchen die Kolben 1 nicht direkt in den Pumpenkopf ein, sondern es ist ein besonderes Führungsgehäuse 7 zwischen Triebwerk und Pumpenkopf zwischengeschaltet. Hierdurch ist ein Anbau an ein Triebwerk möglich, dessen Zylinderabstände nicht mit den Stichmaßen der Pumpenkopfelemente übereinstimmen.In the embodiment according to FIG. 2, the pistons 1 are immersed not directly into the pump head, but it is a special guide housing 7 between the engine and pump head interposed. This is an extension to a Engine possible, the cylinder spacing with the Match the dimensions of the pump head elements.

Vergleicht man die Ausführungsformen nach den beiden Fig. 1 und 2 miteinander, so wird deutlich, daß bei geringerem Kolbenabstand dennoch eine Membranpumpe mit identischen Pumpenkopfelementen zusammengebaut werden kann.Comparing the embodiments according to the two Fig. 1st and 2 with each other, it is clear that with less Piston distance nevertheless a diaphragm pump with identical Pump head elements can be assembled.

In Fig. 3 ist ein Schnitt gemäß der Linie III-III der Fig. 2 gezeigt, wobei die Druck- und Saugleitungen 8,9 in die Pumpenkopfelemente ebenso integriert sind wie die Arbeitsventile 10. Dieses ist eine besonders elegante Lösung. Selbstverständlich ist es auch möglich, diese Leitungen und die Ventile außerhalb zu verlegen und mit Hilfe entsprechender Anschlußflansche zu verbinden.In Fig. 3 is a section along the line III-III of Fig. 2, wherein the pressure and suction lines 8.9 in the Pump head elements are integrated as well as the working valves 10. This is a particularly elegant solution. Of course it is also possible to use these lines and relocate the valves outside and with the help of appropriate To connect connecting flanges.

Die Fig. 4 zeigt eine Einzelheit mit einer Homogenisiervorrichtung, die sich besonders elegant in das erste Pumpenkopfelement 5c integrieren läßt. Diese Homogenisiervorrichtung ist bei der dargestellten Form ein Homogenisierventil, gebildet aus einem Stempel 11, dem Ventilsitz 12 und einer Ventilbetätigung 13. Mit der Ventilbetätigung wird eine axiale Kraft auf den Stempel eingeleitet, die mechanisch (z.B. mit einer Druckfeder), hydraulisch oder pneumatisch erzeugt werden kann. Es ist auch möglich, anders gestaltete Homogenisiervorrichtungen, wie z.B. Blenden oder Strahldispergatoren zu integrieren. 4 shows a detail with a homogenizing device, which is particularly elegant in the first pump head element 5c can be integrated. This homogenizer is a homogenizing valve in the form shown, formed from a stamp 11, the valve seat 12 and one Valve actuation 13. With valve actuation, a axial force is applied to the stamp, which is mechanical (e.g. with a compression spring), hydraulic or pneumatic can be generated. It is also possible to have different designs Homogenizers, e.g. Orifices or jet dispersers to integrate.

Anstelle der Dehnschrauben 6 können auch andere kraftschlüssige Verbindungen für die Pumpenkopfelemente gewählt werden, beispielsweise sind besondere Rahmen einsetzbar, die eine hydraulische oder pneumatische Krafteinleitung ermöglichen.Instead of the expansion screws 6, other non-positive Connections for the pump head elements are selected, For example, special frames can be used enable hydraulic or pneumatic force transmission.

Claims (8)

Membrankolbenpumpe mit n (mindestens zwei) durch je eine Membran begrenzten Förderkammern zum Anbau an ein Triebwerk mit n Kolben, auf das der Pumpenkopf mit den Membranen, den Förderkammern und mit Deckeln aufgesetzt ist, dadurch gekennzeichnet, daß der Pumpenkopf (5) in n+1 Pumpenkopfelemente (5a-5c) aufgeteilt ist, die derart nebeneinander in Reihe angeordnet sind, daß das jeweils zweite Pumpenkopfelement (z.B. 5b), den Deckel sowie die Förderkammer (4) für das vorgeschaltete Pumpenkopfelement (z.B. 5a) bildet, an das es angebaut ist,
und
daß die Membranen (3) zwischen den Pumpenkopfelementen (5a-5c) eingespannt sind und im wesentlichen parallel zu der Längsachse der Kolben (1) ausgerichtet sind.Diaphragm piston pump with n (at least two) delivery chambers, each delimited by a diaphragm, for mounting on an engine with n pistons, on which the pump head with the diaphragms, the delivery chambers and with covers is placed, characterized in that the pump head (5) in n + 1 pump head elements (5a-5c) is divided, which are arranged side by side in a row such that the second pump head element (e.g. 5b), the lid and the delivery chamber (4) for the upstream pump head element (e.g. 5a) to which it is attached is
and
that the membranes (3) are clamped between the pump head elements (5a-5c) and are aligned essentially parallel to the longitudinal axis of the pistons (1). Membrankolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Kolben (1) direkt und parallel zur Fläche der Membran (9) in das zugehörige Pumpenkopfelement (5a-5c) eintauchen.Diaphragm piston pump according to claim 1, characterized in that the piston (1) directly and parallel to Area of the membrane (9) in the associated pump head element Immerse (5a-5c). Membrankolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Kolben (1) in einem separaten Führungsgehäuse (7) angeordnet sind, an dem die Pumpenkopfelemenmte (5a-5c) angebaut sind.Diaphragm piston pump according to claim 1, characterized in that the piston (1) in a separate guide housing (7) are arranged on which the pump head elements (5a-5c) are grown. Membrankolbenpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Pumpenkopfelemente (5a-5c) derart gemeinsam miteinander verbunden sind, daß die erforderliche Verspannkraft gleichzeitig auf sämtliche Pumpenkopfelemente wirkt. Diaphragm piston pump according to one of the preceding Claims, characterized in that the pump head elements (5a-5c) are connected together in such a way that the required clamping force on all at the same time Pump head elements works. Membrankolbenpumpe nach Anspruch 4, dadurch gekennzeichnet, daß außerhalb des Spannrandes der Membranen (3) Durchgangsbohrungen zur Aufnahme von Dehnschrauben (6) vorgesehen sind.Diaphragm piston pump according to claim 4, characterized in that that outside the span of the membranes (3) Through holes for receiving expansion screws (6) are provided. Membrankolbenpumpe nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Druck- und Saugleitungen (8,9) und die Arbeitsventile (10) in dem durch die Pumpenkopfelemente (5a-5c) gebildeten Pumpenkopf integriert sind.Diaphragm piston pump after one or more of the preceding claims, characterized in that the Pressure and suction lines (8,9) and the working valves (10) in that formed by the pump head elements (5a-5c) Pump head are integrated. Membrankolbenpumpe nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in das erste Pumpenkopfelement (5a) eine Homogenisiervorrichtung (11-13) integriert ist.Diaphragm piston pump after one or more of the preceding claims, characterized in that in the first pump head element (5a) is a homogenizing device (11-13) is integrated. Membrankolbenpumpe nach Anspruch 7, dadurch gekennzeichnet, daß die Homogenisiervorrichtung ein Homogenisierventil mit Stempel (11), Ventilsitz (12) und Ventilbetätigung (13) ist.Diaphragm piston pump according to claim 7, characterized in that that the homogenizer is a homogenizer valve with stamp (11), valve seat (12) and valve actuation (13) is.
EP99113882A 1998-09-04 1999-07-16 Diaphragm pump Expired - Lifetime EP0984164B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19840365A DE19840365A1 (en) 1998-09-04 1998-09-04 Diaphragm piston pump
DE19840365 1998-09-04

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EP0984164A2 true EP0984164A2 (en) 2000-03-08
EP0984164A3 EP0984164A3 (en) 2001-03-28
EP0984164B1 EP0984164B1 (en) 2005-04-20

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US (1) US6174144B1 (en)
EP (1) EP0984164B1 (en)
JP (1) JP4243390B2 (en)
DE (2) DE19840365A1 (en)
ES (1) ES2241214T3 (en)

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US7842003B2 (en) * 2005-12-09 2010-11-30 Quest Medical, Inc. Pulsatile fluid delivery system
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DE59911929D1 (en) 2005-05-25
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US6174144B1 (en) 2001-01-16
EP0984164B1 (en) 2005-04-20
EP0984164A3 (en) 2001-03-28
JP4243390B2 (en) 2009-03-25
ES2241214T3 (en) 2005-10-16

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