WO1996008130A2 - Hydraulic or pneumatic piston and/or diaphragm pump - Google Patents

Hydraulic or pneumatic piston and/or diaphragm pump Download PDF

Info

Publication number
WO1996008130A2
WO1996008130A2 PCT/DE1995/001736 DE9501736W WO9608130A2 WO 1996008130 A2 WO1996008130 A2 WO 1996008130A2 DE 9501736 W DE9501736 W DE 9501736W WO 9608130 A2 WO9608130 A2 WO 9608130A2
Authority
WO
WIPO (PCT)
Prior art keywords
rocker
pump
control valves
piston
pump according
Prior art date
Application number
PCT/DE1995/001736
Other languages
German (de)
French (fr)
Other versions
WO1996008130A3 (en
Inventor
Ralf HÜWEL
Heinz HÜWEL
Original Assignee
Huewel Ralf
Hüwel Ralf
Huewel Heinz
Hüwel Heinz
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
Priority to DE19944427981 priority Critical patent/DE4427981C1/en
Application filed by Huewel Ralf, Hüwel Ralf, Huewel Heinz, Hüwel Heinz filed Critical Huewel Ralf
Priority to AU41712/96A priority patent/AU4171296A/en
Priority to PCT/DE1995/001736 priority patent/WO1996008130A2/en
Priority to DE19581003T priority patent/DE19581003D2/en
Publication of WO1996008130A2 publication Critical patent/WO1996008130A2/en
Publication of WO1996008130A3 publication Critical patent/WO1996008130A3/en

Links

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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/115—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/135—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction

Definitions

  • the invention relates to a hydraulically or pneumatically operated piston and / or diaphragm pump.
  • the invention is based on the problem of finding a self-starting pump which conveys a delivery medium, in particular water, at the pressure of a drive medium, in particular water, and works purely mechanically, without using other energy sources, in particular without using electrical energy.
  • the pump should work correctly even with a low drive pressure, which is particularly important for pneumatic drives.
  • work unit 1 is designed as a working piston and delivery units 3 and 18 are designed as delivery membranes.
  • This embodiment is only to be regarded as an example for realizing the invention, since in particular the Unit of work as a working membrane and the delivery units as delivery pistons can be formed.
  • the pump consists of the pump body 2, which can have a particularly cylindrical shape.
  • the two delivery cavities 5 and 19 are embedded opposite one another in the pump body. In between is the drive cavity 11 and the switching cavity 10.
  • the two delivery cavities 5 and 19 and the switching cavity 10 are connected to one another via the pressure compensation connections 21 and 29.
  • the drive cavity 11 and the switching cavity 10 have no direct connection, since these are separated from one another by the working piston liner 12 accommodated in the drive cavity 11.
  • the conveying membranes 3 and 18 accommodated in the two conveying cavities 5 and 19 are firmly connected to one another by a rod 16.
  • the length of the rod 16 is in particular designed such that it connects the two conveyor membranes 3 and 18 to one another in the idle state. Through this connection, the conveyor membranes 3 and 18 can only be deflected simultaneously.
  • the working piston 1 is in particular fastened in the center on the rod 16.
  • the working piston liner 12, in which the working piston 1 is accommodated in a freely movable manner, is located in the drive cavity 11.
  • the pump also contains the drive medium inlet openings 8 and 13, the drive medium outlet openings 22 and 27, the conveying medium inlet openings 4 and 17 and the conveying medium outlet openings 20 and 28.
  • the two drive medium inlet openings 8 and 13 can be combined within the pump body to form a common drive medium inlet opening.
  • the Both drive medium outlet openings 22 and 27 can also be combined within the pump body to form a common drive medium outlet opening.
  • a check valve in the inlet direction is attached to each of the medium inlet openings 4 and 17. These two check valves can also be located outside the pump body.
  • a check valve in the outlet direction is attached to each of the medium outlet openings 28 and 20. These two check valves can also be located outside the pump body.
  • the delivery membrane 3 is attached to the pump body 2.
  • the conveying medium openings 4 and 28 are located in the conveying cavity 5 on the side opposite the rod 16.
  • the delivery membrane 18 is attached to the pump body 2.
  • the delivery medium openings 17 and 20 are located in the delivery cavity 19 on the side opposite the rod 16.
  • the drive medium inlet opening 8 is connected via the magnetically controlled inlet control valve 7 to the drive cavity 11 above the working piston 1.
  • the drive medium inlet opening 13 is connected to the drive cavity 11 below the working piston 1 via the magnetically controlled inlet control valve 14.
  • the drive medium outlet opening 27 is connected via the magnetically controlled outlet control valve 26 to the drive cavity 11 above the working piston 1.
  • the drive medium outlet opening 22 is connected to the drive cavity 11 below the working piston 1 via the magnetically controlled outlet control valve 23.
  • the rocker 25 accommodated in the switching cavity 10 is suspended in a tiltable manner around the working piston liner 12.
  • At the two ends of the rocker 25 there are movably suspended permanent magnets 9 and 24 which, depending on the position of the rocker, open either the magnetically controlled control valves 7 and 23 or the magnetically controlled control valves 14 and 26.
  • a resilient connection 6 which is formed here from a spring provided with two plungers.
  • a resilient connection 15 which is formed here from a spring provided with two tappets.
  • the springs in the plungers 6 and 15, which in particular have the same spring constant, are designed so that in every state of the pump a direct connection between the delivery diaphragm 3, the resilient connection 6, the rocker 25, the resilient connection 15 and the delivery diaphragm 18th consists.
  • the springs in the resilient connections 6 and 15 are also designed so that the rocker 25 in each state of the two delivery membranes firmly connected by the rod, either the stable state permanent magnet 9 opens the inlet control valve 7 and the permanent magnet 24 opens the outlet control valve 23 or the stable state permanent magnet 9 opens inlet control valve 14 and permanent magnet 24 opens outlet control valve 26 occupies. Due to this property, the pump can start automatically in any condition. In addition, the switching security is low Drive pressure ensures, which is particularly important in pneumatic drives.
  • the parts 1..29 defined above are to be attached and provided with connections so that the five following rooms a, b, c, d and e are separated from each other in each state of the pump.
  • the space a is formed from the conveying medium inlet opening 4, the conveying cavity 5, the side of the conveying membrane 3 opposite the rod 1 and the conveying medium outlet opening 28.
  • the space b is formed from the side of the delivery diaphragm 3 facing the rod 1, the pressure compensation connections 21 and 29, the switching cavity 10 with the outside of the working piston liner 12, the rocker 25 with the permanent magnets 9 and 24 and the side of the delivery diaphragm 18 facing the rod 1.
  • the space c is formed from the drive medium inlet opening 8, the inlet control valve 7, the side of the drive cavity 11 facing the delivery diaphragm 3 with the working piston liner 12 and working piston 1, the outlet control valve 26 and the driving medium outlet opening 27.
  • the space d is formed from the drive medium inlet opening 13, the inlet control valve 14, the side of the drive cavity 11 facing the delivery diaphragm 18 with the working piston liner 12 and working piston 1, the outlet control valve 23 and the driving medium outlet opening 22.
  • the space e is formed from the conveying medium inlet opening 17, the conveying cavity 19, the side of the conveying membrane 18 opposite the rod 1 and the conveying medium outlet opening 20.
  • the sequence control of the pump is divided into four repeating steps and is shown in Figures 1 to 4. It is assumed here that a pressure is present at the drive medium inlet openings 8 and 13 at all times.
  • the ratio of the amount of drive medium to the amount of pumped medium can be changed via the ratio of working piston size to delivery diaphragm size.
  • the invented pump is constructed purely mechanically, thus works without the use of electrical energy, is self-starting and also works correctly even at low drive pressure, which is particularly important in the case of a pneumatic drive.

Abstract

Known hydraulic piston and/or diaphragm pumps use electrical energy or a spool valve/control piston for reversal purposes. According to the invention, the novel, self-starting hydraulic or pneumatic piston and/or diaphragm pump should have a purely mechanical structure and operate correctly even at low drive pressure, which is important in particular when the pump operates pneumatically. The novel piston and/or diaphragm pump comprises, on a rod, a working piston and two pumping diaphragms which are connected to an internal rocker via two resilient connections. The pump is reversed by reversal of the four internal valves which are controlled by two permanent magnets secured on a rocker. The pump of the invention is used for purely mechanical delivery of a pumping fluid by the pressure of a drive fluid.

Description

Hydraulisch oder pneumatisch betriebene Kolben- und/oder Membran- PumpeHydraulically or pneumatically operated piston and / or diaphragm pump
BeschreibunσDescription
Die Erfindung betrifft eine hydraulisch oder pneumatisch betriebene Kolben- und/oder Membran- Pumpe.The invention relates to a hydraulically or pneumatically operated piston and / or diaphragm pump.
Es ist bekannt, daß es die verschiedensten hydraulischen oder pneumatisehen, aus Kolben und/oder Membranen bestehenden, Pumpen gibt. Hierbei sind insbesondere die in den Patenten/Gebrauchsmustern DE 3900718 AI, DE 2726674 Bl, G 27547 Ic/59a und G 88 08 802.2 beschriebenen Pumpen zu erwähnen. Alle Pumpen haben aber gemeinsam, daß sie zur Umsteuerung der Pumpe elektrische Energie oder einen Steuerschieber/Steuerkolben verwenden.It is known that there are various hydraulic or pneumatic pumps consisting of pistons and / or membranes. The pumps described in the patents / utility models DE 3900718 AI, DE 2726674 B1, G 27547 Ic / 59a and G 88 08 802.2 should be mentioned in particular. But all pumps have in common that they use electrical energy or a spool / control piston to reverse the pump.
Der Erfindung liegt das Problem zugrunde eine selbstanlaufende Pumpe zu finden, die ein Fördermedium, insbesondere Wasser, mit dem Druck eines Antriebsmediums, insbesondere Wasser, fördert und dabei rein mechanisch, ohne Verwendung anderer Energiequellen, insbesondere ohne Verwendung elektrischer Energie, arbeitet. Außerdem soll die Pumpe auch bei geringem Antriebsdruck korrekt arbeiten, was insbesondere bei pneumatischem Antrieb von Bedeutung ist.The invention is based on the problem of finding a self-starting pump which conveys a delivery medium, in particular water, at the pressure of a drive medium, in particular water, and works purely mechanically, without using other energy sources, in particular without using electrical energy. In addition, the pump should work correctly even with a low drive pressure, which is particularly important for pneumatic drives.
Dieses Problem wird durch die im Patentanspruch 1 aufgeführten Merkmale gelöst und durch die in den Patentansprüchen 2 bis 7 aufgeführten Merkmale ergänzt.This problem is solved by the features listed in claim 1 and supplemented by the features listed in claims 2 to 7.
Bei der in der nun folgenden Beschreibung und in den Abbildungen 1 bis 4 beschriebenen Pumpe ist die Arbeitseinheit 1 als Arbeitskolben und sind die Fördereinheiten 3 und 18 als Fördermembranen ausgelegt. Diese Ausführung ist nur als ein Beispiel zur Verwirklichung der Erfindung anzusehen, da insbesondere die Arbeitseinheit als Arbeitsmembrane und die Fördereinheiten als Förderkolben gebildet werden können.In the pump described in the following description and in Figures 1 to 4, work unit 1 is designed as a working piston and delivery units 3 and 18 are designed as delivery membranes. This embodiment is only to be regarded as an example for realizing the invention, since in particular the Unit of work as a working membrane and the delivery units as delivery pistons can be formed.
Die Pumpe besteht aus dem Pumpenkörper 2, welcher eine insbesondere zylindrische Form haben kann. In dem Pumpenkörper sind die beiden Förderhohlräume 5 und 19 gegenüberliegend eingelassen. Dazwischen befindet sich der Antriebshohlraum 11 und der Schalthohlraum 10. Die beiden Förderhohlräume 5 und 19 und der Schalthohlraum 10 sind miteinander über die Druckausgleichsverbindungen 21 und 29 miteinander verbunden. Der Antriebshohlraum 11 und der Schalthohlraum 10 haben keine direkte Verbindung, da diese durch die im Antriebshohlraum 11 untergebrachte Arbeitskolbenlaufbüchse 12 voneinander getrennt sind.The pump consists of the pump body 2, which can have a particularly cylindrical shape. The two delivery cavities 5 and 19 are embedded opposite one another in the pump body. In between is the drive cavity 11 and the switching cavity 10. The two delivery cavities 5 and 19 and the switching cavity 10 are connected to one another via the pressure compensation connections 21 and 29. The drive cavity 11 and the switching cavity 10 have no direct connection, since these are separated from one another by the working piston liner 12 accommodated in the drive cavity 11.
Die in den beiden Förderhohlräumen 5 und 19 untergebrachten Fördermembranen 3 und 18 sind durch eine Stange 16 fest miteinander verbunden. Die Länge der Stange 16 ist insbesondere so ausgelegt, daß diese die beiden Fördermembranen 3 und 18 im Ruhezustand miteinander verbindet. Durch diese Verbindung können die Fördermembranen 3 und 18 nur simultan ausgelenkt werden.The conveying membranes 3 and 18 accommodated in the two conveying cavities 5 and 19 are firmly connected to one another by a rod 16. The length of the rod 16 is in particular designed such that it connects the two conveyor membranes 3 and 18 to one another in the idle state. Through this connection, the conveyor membranes 3 and 18 can only be deflected simultaneously.
Auf der Stange 16 ist der Arbeitskolben 1 insbesondere mittig befestigt.The working piston 1 is in particular fastened in the center on the rod 16.
In dem Antriebshohlraum 11 befindet sich die Arbeitskolbenlaufbüchse 12, in dem der Arbeitskolben 1 frei beweglich untergebracht ist.The working piston liner 12, in which the working piston 1 is accommodated in a freely movable manner, is located in the drive cavity 11.
In der Pumpe befinden sich außerdem die Antriebsmedium¬ eingangsöffnungen 8 und 13 , die Antriebsmediumausgangsöffnungen 22 und 27, die Fördermediumeingangsöffnungen 4 und 17 und die Fördermediumausgangsöffnungen 20 und 28. Die beiden Antriebsmediumeingangsöffnungen 8 und 13 können innerhalb des Pumpenkörpers zu einer gemeinsamen Antriebsmediumeingangsöffnung zusammengefaßt werden. Die beiden Antriebsmediumausgangsöffnungen 22 und 27 können ebenso innerhalb des Pumpenkörpers zu einer gemeinsamen Antriebsmediumausgangsöffnung zusammengefaßt werden.The pump also contains the drive medium inlet openings 8 and 13, the drive medium outlet openings 22 and 27, the conveying medium inlet openings 4 and 17 and the conveying medium outlet openings 20 and 28. The two drive medium inlet openings 8 and 13 can be combined within the pump body to form a common drive medium inlet opening. The Both drive medium outlet openings 22 and 27 can also be combined within the pump body to form a common drive medium outlet opening.
An jedem der Fördermediumeingangsöffnungen 4 und 17 ist ein Rückschlagventil in Einlaßrichtung angebracht. Diese beiden Rückschlagventile können sich auch außerhalb des Pumpenkörpers befinden.A check valve in the inlet direction is attached to each of the medium inlet openings 4 and 17. These two check valves can also be located outside the pump body.
An jedem der Fördermediumausgangsöffnungen 28 und 20 ist ein Rückschlagventil in Auslaßrichtung angebracht. Diese beiden Rückschlagventile können sich auch außerhalb des Pumpenkörpers befinden.A check valve in the outlet direction is attached to each of the medium outlet openings 28 and 20. These two check valves can also be located outside the pump body.
Im Förderhohlraum 5 ist die Fördermembrane 3 am Pumpenkörper 2 befestigt. Die Fördermediumöffnungen 4 und 28 befinden sich im Förderhohlraum 5 auf der der Stange 16 entgegengesetzten Seite.In the delivery cavity 5, the delivery membrane 3 is attached to the pump body 2. The conveying medium openings 4 and 28 are located in the conveying cavity 5 on the side opposite the rod 16.
Im Förderhohlraum 19 ist die Fördermembrane 18 am Pumpenkörper 2 befestigt. Die Fördermediumöffnungen 17 und 20 befinden sich im Förderhohlraum 19 auf der der Stange 16 entgegengesetzten Seite.In the delivery cavity 19, the delivery membrane 18 is attached to the pump body 2. The delivery medium openings 17 and 20 are located in the delivery cavity 19 on the side opposite the rod 16.
Die Antriebsmediumeingangsöffnung 8 ist über das magnetisch gesteuerte Einlaßsteuerventil 7 mit dem Antriebshohlraum 11 oberhalb des Arbeitskolbens 1 verbunden.The drive medium inlet opening 8 is connected via the magnetically controlled inlet control valve 7 to the drive cavity 11 above the working piston 1.
Die Antriebsmediumeingangsöffnung 13 ist über das magnetisch gesteuerte Einlaßsteuerventil 14 mit dem Antriebshohlraum 11 unterhalb des Arbeitskolbens 1 verbunden.The drive medium inlet opening 13 is connected to the drive cavity 11 below the working piston 1 via the magnetically controlled inlet control valve 14.
Die Antriebsmediumausgangsöffnung 27 ist über das magnetisch gesteuerte Auslaßsteuerventil 26 mit dem Antriebshohlraum 11 oberhalb des Arbeitskolbens 1 verbunden. Die Antriebsmediumausgangsöffnung 22 ist über das magnetisch gesteuerte Auslaßsteuerventil 23 mit dem Antriebshohlraum 11 unterhalb des Arbeitskolbens 1 verbunden.The drive medium outlet opening 27 is connected via the magnetically controlled outlet control valve 26 to the drive cavity 11 above the working piston 1. The drive medium outlet opening 22 is connected to the drive cavity 11 below the working piston 1 via the magnetically controlled outlet control valve 23.
Die in dem Schalthohlraum 10 untergebrachte Wippe 25 ist um die Arbeitskolbenlaufbüchse 12 kippbar aufgehängt. An den beiden Enden der Wippe 25 befinden sich beweglich aufgehängte Permanentmagneten 9 und 24, die je nach Lage der Wippe entweder die magnetisch gesteuerten Steuerventile 7 und 23 oder die magnetisch gesteuerten Steuerventile 14 und 26 öffnen.The rocker 25 accommodated in the switching cavity 10 is suspended in a tiltable manner around the working piston liner 12. At the two ends of the rocker 25 there are movably suspended permanent magnets 9 and 24 which, depending on the position of the rocker, open either the magnetically controlled control valves 7 and 23 or the magnetically controlled control valves 14 and 26.
Zwischen der Wippe 25 und der Fördermembrane 3 befindet sich eine federnde Verbindung 6, die hier aus einer mit zwei Stößeln versehenen Feder gebildet ist.Between the rocker 25 and the conveyor membrane 3 there is a resilient connection 6, which is formed here from a spring provided with two plungers.
Zwischen der Wippe 25 und der Fördermembrane 18 befindet sich eine federnde Verbindung 15, die hier aus einer mit zwei Stößeln versehenen Feder gebildet ist.Between the rocker 25 and the conveyor membrane 18 there is a resilient connection 15, which is formed here from a spring provided with two tappets.
Die Federn in den Stößeln 6 und 15, die insbesondere dieselbe Federkonstante haben, sind so ausgelegt, daß in jedem Zustand der Pumpe eine direkt Verbindung zwischen der Fördermembrane 3, der federnden Verbindung 6, der Wippe 25, der federnden Verbindung 15 und der Fördermembrane 18 besteht. Die Federn in den federnden Verbindungen 6 und 15 sind außerdem so ausgelegt, daß die Wippe 25 bei jedem Zustand der beiden durch die Stange fest verbundenen Fördermembranen, entweder den stabilen Zustand Permanentmagnet 9 öffnet Einlaßsteuerventil 7 und Permanentmagnet 24 öffnet Auslaßsteuerventil 23 oder den stabilen Zustand Permanentmagnet 9 öffnet Einlaßsteuerventil 14 und Permanentmagnet 24 öffnet Auslaßsteuerventil 26 einnimmt. Aufgrund dieser Eigenschaft kann die Pumpe in jedem Zustand von selbst anlaufen. Außerdem ist die Umschaltsicherheit bei geringem Antriebsdruck gewährleistet, was insbesondere bei pneumatischem Antrieb von Bedeutung ist.The springs in the plungers 6 and 15, which in particular have the same spring constant, are designed so that in every state of the pump a direct connection between the delivery diaphragm 3, the resilient connection 6, the rocker 25, the resilient connection 15 and the delivery diaphragm 18th consists. The springs in the resilient connections 6 and 15 are also designed so that the rocker 25 in each state of the two delivery membranes firmly connected by the rod, either the stable state permanent magnet 9 opens the inlet control valve 7 and the permanent magnet 24 opens the outlet control valve 23 or the stable state permanent magnet 9 opens inlet control valve 14 and permanent magnet 24 opens outlet control valve 26 occupies. Due to this property, the pump can start automatically in any condition. In addition, the switching security is low Drive pressure ensures, which is particularly important in pneumatic drives.
Die obig definierten Teile 1..29 sind so anzubringen und mit Verbindungen zu versehen, daß in jedem Zustand der Pumpe die fünf folgenden Räume a, b, c, d und e voneinander getrennt sind.The parts 1..29 defined above are to be attached and provided with connections so that the five following rooms a, b, c, d and e are separated from each other in each state of the pump.
Der Raum a wird gebildet aus der Fördermediumeingangsöffnung 4, dem Förderhohlraum 5, der der Stange 1 entgegengesetzten Seite der Fördermembrane 3 und der Fördermediumausgangsöffnung 28.The space a is formed from the conveying medium inlet opening 4, the conveying cavity 5, the side of the conveying membrane 3 opposite the rod 1 and the conveying medium outlet opening 28.
Der Raum b wird gebildet aus der der Stange 1 zugerichteten Seite der Fördermembrane 3, den Druckausgleichsverbindungen 21 und 29 dem Schalthohlraum 10 mit Außenseite der Arbeitskolbenlaufbüchse 12, der Wippe 25 mit den Permanentmagneten 9 und 24 und der der Stange 1 zugerichteten Seite der Fördermembrane 18.The space b is formed from the side of the delivery diaphragm 3 facing the rod 1, the pressure compensation connections 21 and 29, the switching cavity 10 with the outside of the working piston liner 12, the rocker 25 with the permanent magnets 9 and 24 and the side of the delivery diaphragm 18 facing the rod 1.
Der Raum c wird gebildet aus der Antriebsmediumeingangsöffnung 8, dem Einlaßsteuerventil 7, der der Fördermembrane 3 zugerichteten Seite des Antriebshohlraums 11 mit Arbeitskolbenlaufbüchse 12 und Arbeitskolben 1, dem Auslaßsteuerventil 26 und der Antriebsmediumausgangsöffnung 27.The space c is formed from the drive medium inlet opening 8, the inlet control valve 7, the side of the drive cavity 11 facing the delivery diaphragm 3 with the working piston liner 12 and working piston 1, the outlet control valve 26 and the driving medium outlet opening 27.
Der Raum d wird gebildet aus der Antriebsmediumeingangsöffnung 13, dem Einlaßsteuerventil 14, der der Fördermembrane 18 zugerichteten Seite des Antriebshohlraums 11 mit Arbeitskolbenlaufbüchse 12 und Arbeitskolben 1, dem Auslaßsteuerventil 23 und der Antriebsmediumausgangsöffnung 22.The space d is formed from the drive medium inlet opening 13, the inlet control valve 14, the side of the drive cavity 11 facing the delivery diaphragm 18 with the working piston liner 12 and working piston 1, the outlet control valve 23 and the driving medium outlet opening 22.
Der Raum e wird gebildet aus der Fördermediumeingangsöffnung 17, dem Förderhohlraum 19, der der Stange 1 entgegengesetzten Seite der Fördermembrane 18 und der Fördermediumausgangsöffnung 20. Die Ablaufsteuerung der Pumpe ist in vier sich wiederholende Schritte gegliedert und in den Abbidungen 1 bis 4 bezeichnet. Es wird hier davon ausgegangen, daß zu jedem Zeitpunkt ein Druck an den Antriebsmediumeingangsöffnungen 8 und 13 anliegt.The space e is formed from the conveying medium inlet opening 17, the conveying cavity 19, the side of the conveying membrane 18 opposite the rod 1 and the conveying medium outlet opening 20. The sequence control of the pump is divided into four repeating steps and is shown in Figures 1 to 4. It is assumed here that a pressure is present at the drive medium inlet openings 8 and 13 at all times.
Nachdem die Pumpe den Zustand von Abbildung 1 erreicht hat, ist die Wippe so ausgerichtet, daß die beiden Permanentmagneten 9 und 24 die Steuerventile 7 und 23 öffnen und die beiden Steuerventile 14 und 26 geschlossen sind. Dadurch liegt über der Antriebsmediumeingangsöffnung 8 ein Druck auf der oberen Seite des Arbeitskolbens 1 an der über die Stange 16 die beiden Fördermembranen 3 und 18 nach unten drückt. Dadurch sind die Rückschlagventile an den Öffnungen 4 und 20 geöffnet und die Rückschlagventile an den Öffnungen 17 und 28 geschlossen. Über die Fördermediumeingangsöffnung 4 wird Fördermedium in die Pumpe gesaugt und über die Fördermediumausgangsöffnung 20 vorab angesaugtes Fördermedium herausgepumpt. Außerdem wird über die Antriebsmediumausgangsöffnung 22 vorab verwendetes Antriebsmedium herausgepumt. Dieser Vorgang läuft solange, bis der Zustand von Abbildung 2 erreicht ist und die Federkraft der federnden Verbindung 6 größer ist als die Addition der Haltekräfte der beiden Permanentmagneten 9 und 24 und der Federkraft der federnden Verbindung 15. Die beiden Permanentmagneten lösen sich von den Steuerventilen 7 und 23 und die größere Federkraft der federnden Verbindung 6 bringt die Wippe 25 in die Ausrichtung von Abbildung 3, in welcher nun die beiden Permanentmagneten 9 und 24 die Steuerventile 14 und 26 öffnen und die Steuerventile 7 und 23 geschlossen sind. Dadurch kehrt sich der vorherige Vorgang um und das vorab angesaugte Fördermedium wird über die Fördermediumausgangsöffnung 28 und das vorab verwendete Antriebsmedium über die Antriebsmediumausgangsöffnung 27 herausgepumt. Nachdem der nun über die Antriebsmediumeingangsöffnung 13 anliegende Druck den Arbeitskolben und die Fördermembranen soweit wieder nach oben gedrückt hat, daß die Federkraft der federnden Verbindung 15 größer als die Addition der Haltekräfte der Permanentmagneten 9 und 24 und der Federkraft der federnden Verbindung 6 geworden ist (siehe Abbildung 4) , schaltet die Pumpe erneut um und der Anfangszustand von Abbildung 1 wird wieder erreicht.After the pump has reached the state shown in Figure 1, the rocker is aligned so that the two permanent magnets 9 and 24 open the control valves 7 and 23 and the two control valves 14 and 26 are closed. As a result, there is a pressure above the drive medium inlet opening 8 on the upper side of the working piston 1 at which the two delivery membranes 3 and 18 press downward via the rod 16. As a result, the check valves at openings 4 and 20 are open and the check valves at openings 17 and 28 are closed. Pumped medium is sucked into the pump via the pumped medium inlet opening 4 and pumped out pumped medium via the pumped medium outlet opening 20. In addition, previously used drive medium is pumped out via the drive medium outlet opening 22. This process continues until the state of Figure 2 is reached and the spring force of the resilient connection 6 is greater than the addition of the holding forces of the two permanent magnets 9 and 24 and the spring force of the resilient connection 15. The two permanent magnets disengage from the control valves 7 and 23 and the greater spring force of the resilient connection 6 brings the rocker 25 into the orientation of Figure 3, in which the two permanent magnets 9 and 24 now open the control valves 14 and 26 and the control valves 7 and 23 are closed. As a result, the previous process is reversed and the previously sucked-in pumped medium is pumped out via the pumped medium outlet opening 28 and the previously used drive medium is pumped out via the drive medium outlet opening 27. After the pressure now applied via the drive medium inlet opening 13, the working piston and the delivery membranes so far pressed again that the spring force of the spring connection 15 has become greater than the addition of the holding forces of the permanent magnets 9 and 24 and the spring force of the spring connection 6 (see Figure 4), the pump switches again and the initial state of Figure 1 will be reached again.
Das Verhältnis der Antriebsmediummenge zur Fördermediummenge kann über das Verhältnis von Arbeitskolbengröße zu Fördermembrangröße verändert werden.The ratio of the amount of drive medium to the amount of pumped medium can be changed via the ratio of working piston size to delivery diaphragm size.
Die dargestellte und beschriebene Ausführung ist nur ein Beispiel zur Verwirklichung der Erfindung.The embodiment shown and described is only one example for realizing the invention.
Die mit der Erfindung erzielten Vorteile bestehen darin, daß die erfundene Pumpe rein mechanisch aufgebaut ist, somit ohne Verwendung elektrischer Energie arbeitet, selbstanlaufend ist und außerdem auch bei geringem Antriebsdruck korrekt arbeitet, was insbesondere bei pneumatischem Antrieb von Bedeutung ist. The advantages achieved by the invention are that the invented pump is constructed purely mechanically, thus works without the use of electrical energy, is self-starting and also works correctly even at low drive pressure, which is particularly important in the case of a pneumatic drive.

Claims

Patentansprüche claims
1. Hydraulisch oder pneumatisch betriebene Kolben- und/oder Membran- Pumpe mit einer innenliegenden Stange, auf der eine Arbeitseinheit und zwei Fördereinheiten befestigt sind, wobei die Pumpe rein mechanisch umgesteuert wird,1. Hydraulically or pneumatically operated piston and / or diaphragm pump with an internal rod on which a working unit and two delivery units are fastened, the pump being reversed purely mechanically,
dadurch gekennzeichnet, daß die Pumpe mit zwei Einlaßsteuerventilen (7,14), zwei Auslaßsteuerventilen (23,26), zwei an einer Wippe (25) befestigten Permanentmagneten (9,24), von denen einer den Einlaßsteuerventilen und einer den Auslaßsteuerventilen zugeordnet ist und diese jeweils abwechselnd öffnet und zwei zwischen den Fördereinheiten (3,18) und der Wippe (25) angebrachten federnden Verbindungen (6,15) zur Umsteuerung gebildet ist.characterized in that the pump has two inlet control valves (7, 14), two outlet control valves (23, 26), two permanent magnets (9.24) attached to a rocker (25), one of which is assigned to the inlet control valves and one to the outlet control valves and this opens alternately and two resilient connections (6, 15) are provided between the conveyor units (3, 18) and the rocker (25) for reversing.
2. Pumpe nach Anspruch 1,2. Pump according to claim 1,
dadurch gekennzeichnet, daß eines der beidencharacterized in that one of the two
Einlaßsteuerventile (7), eine Seite der Arbeitseinheit (1) und eines der beiden Auslaßsteuerventile (26) zu einerInlet control valves (7), one side of the working unit (1) and one of the two outlet control valves (26) to one
Einheit und davon getrennt das andere EinlaßsteuerventilUnit and separated from it the other inlet control valve
(14) , die andere Seite der Arbeitseinheit (1) und das andere Auslaßsteuerventil (23) zu einer anderen Einheit derart verbunden und um die Wippe (25) herum angebracht sind, daß je nach Wippstellung einer der beiden auf der Wippe (25) angebrachten Permanentmagneten (9) eines der beiden Einlaßsteuerventile (7 oder 14) und gleichzeitig der andere auf der Wippe (25) angebrachte Permanentmagnet (24) das zur anderen Einheit gehörende Auslaßsteuerventil (23 oder 26) öffnet. (14), the other side of the working unit (1) and the other outlet control valve (23) are connected to another unit and are mounted around the rocker (25) in such a way that, depending on the rocker position, one of the two is attached to the rocker (25) Permanent magnet (9) of one of the two inlet control valves (7 or 14) and at the same time the other permanent magnet (24) attached to the rocker (25) opens the outlet control valve (23 or 26) belonging to the other unit.
3. Pumpe nach einem der Ansprüche 1 bis 2,3. Pump according to one of claims 1 to 2,
dadurch gekennzeichnet, daß die Arbeitseinheit aus einem, insbesondere mittig auf der Stange (16) befestigten und in einer Arbeitskolbenlaufbüchse (12) untergebrachten, Arbeitskolben (1) gebildet ist.characterized in that the working unit is formed from a working piston (1), in particular fastened centrally on the rod (16) and accommodated in a working piston liner (12).
4. Pumpe nach einem der Ansprüche 1 bis 3 ,4. Pump according to one of claims 1 to 3,
dadurch gekennzeichnet, daß die Permanentmagneten (9,24) beweglich an den Enden der Wippe (25) aufgehängt sind.characterized in that the permanent magnets (9, 24) are movably suspended from the ends of the rocker (25).
5. Pumpe nach einem der Ansprüche 1 bis 4,5. Pump according to one of claims 1 to 4,
dadurch gekennzeichnet, daß die Permanentmagneten (9,24) zur Dämpfung mit einem elastischen Material, insbesondere mit Gummi, belegt sind.characterized in that the permanent magnets (9, 24) are covered with an elastic material, in particular rubber, for damping.
6. Pumpe nach einem der Ansprüche 1 bis 5,6. Pump according to one of claims 1 to 5,
dadurch gekennzeichnet, daß jede der beiden federnden Verbindungen (6,15) zwischen der Wippe (25) und den beiden Fördereinheiten (3,18) aus einer mit zwei Stößeln verbundenen Feder besteht, wobei die beiden Federn insbesondere dieselbe Federkonstante haben.characterized in that each of the two resilient connections (6, 15) between the rocker (25) and the two conveyor units (3, 18) consists of a spring connected to two plungers, the two springs in particular having the same spring constant.
7. Pumpe nach einem der Ansprüche 1 bis 5,7. Pump according to one of claims 1 to 5,
dadurch gekennzeichnet, daß die federnden Verbindungen (6,15) zwischen der Wippe (25) und den beiden Fördereinheiten (3,18) aus einem an der Wippe (25) fest, beweglich oder federnd angebrachten Stößel und/oder aus zwei die Fördereinheiten (3,18) und den Stößel verbindenden Federn besteht, wobei die beiden Federn insbesondere dieselbe Federkonstante haben und die beiden Federn insbesondere mittig auf einer die beiden Fördereinheiten verbindenden Stange angebracht sind. characterized in that the resilient connections (6, 15) between the rocker (25) and the two conveyor units (3, 18) consist of a plunger fixedly, movably or resiliently attached to the rocker (25) and / or of two the conveyor units ( 3.18) and springs connecting the plunger, the two springs in particular having the same spring constant and the two springs being attached in particular in the middle of a rod connecting the two conveyor units.
PCT/DE1995/001736 1994-08-08 1995-12-06 Hydraulic or pneumatic piston and/or diaphragm pump WO1996008130A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19944427981 DE4427981C1 (en) 1994-08-08 1994-08-08 Hydraulic or pneumatic piston and/or membrane pump
AU41712/96A AU4171296A (en) 1994-08-08 1995-12-06 Hydraulic or pneumatic piston and/or diaphragm pump
PCT/DE1995/001736 WO1996008130A2 (en) 1994-08-08 1995-12-06 Hydraulic or pneumatic piston and/or diaphragm pump
DE19581003T DE19581003D2 (en) 1994-08-08 1995-12-06 Hydraulically or pneumatically operated piston and / or diaphragm pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944427981 DE4427981C1 (en) 1994-08-08 1994-08-08 Hydraulic or pneumatic piston and/or membrane pump
PCT/DE1995/001736 WO1996008130A2 (en) 1994-08-08 1995-12-06 Hydraulic or pneumatic piston and/or diaphragm pump

Publications (2)

Publication Number Publication Date
WO1996008130A2 true WO1996008130A2 (en) 1996-03-21
WO1996008130A3 WO1996008130A3 (en) 1996-10-17

Family

ID=25939023

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001736 WO1996008130A2 (en) 1994-08-08 1995-12-06 Hydraulic or pneumatic piston and/or diaphragm pump

Country Status (3)

Country Link
AU (1) AU4171296A (en)
DE (2) DE4427981C1 (en)
WO (1) WO1996008130A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801228A2 (en) * 1996-04-12 1997-10-15 Graco Inc. Double diaphragm pump
EP0942171A2 (en) * 1996-04-12 1999-09-15 Graco Inc. Double diaphragm pump
WO2008015471A1 (en) * 2006-07-31 2008-02-07 About Dt Ltd A pump
DE102008059205A1 (en) * 2008-11-27 2010-06-02 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Device for supplying medium along pipeline system, has inlet and outlet for medium, and hoisting device, which has pressure side and suction side
RU2786304C1 (en) * 2022-07-05 2022-12-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Multistage diaphragm pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007039964B4 (en) * 2007-08-23 2011-06-22 Timmer Pneumatik GmbH, 48485 High pressure double diaphragm pump and diaphragm element for such a pump
FR2929324B1 (en) * 2008-03-25 2012-10-12 Turbomeca TURBOMOTEUR COMPRISING A REVERSIBLE ELECTRIC MACHINE
AU2010220823A1 (en) * 2009-03-06 2011-09-29 David Goldie Reciprocating pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973717A (en) * 1957-10-29 1961-03-07 Westinghouse Air Brake Co Booster pump
EP0480192B1 (en) * 1990-10-08 1994-07-13 ALMATEC Technische Innovationen GmbH Double-diaphragm pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138637B (en) * 1959-07-21 1962-10-25 Grundstuecksverwaltungsgesells Double diaphragm pump, especially fuel pump
DE2726674C2 (en) * 1977-06-14 1979-01-11 Draegerwerk Ag, 2400 Luebeck Pressurized gas operated double diaphragm pump
DE3900718A1 (en) * 1989-01-12 1990-07-26 Depa Ges Fuer Verfahrenstechni METHOD AND DEVICE FOR CONTROLLING A COMPRESSED AIR-OPERATED DOUBLE DIAPHRAGM PUMP

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973717A (en) * 1957-10-29 1961-03-07 Westinghouse Air Brake Co Booster pump
EP0480192B1 (en) * 1990-10-08 1994-07-13 ALMATEC Technische Innovationen GmbH Double-diaphragm pump

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801228A2 (en) * 1996-04-12 1997-10-15 Graco Inc. Double diaphragm pump
EP0801228A3 (en) * 1996-04-12 1999-07-21 Graco Inc. Double diaphragm pump
EP0942171A2 (en) * 1996-04-12 1999-09-15 Graco Inc. Double diaphragm pump
EP0942171A3 (en) * 1996-04-12 2000-02-09 Graco Inc. Double diaphragm pump
WO2008015471A1 (en) * 2006-07-31 2008-02-07 About Dt Ltd A pump
DE102008059205A1 (en) * 2008-11-27 2010-06-02 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Device for supplying medium along pipeline system, has inlet and outlet for medium, and hoisting device, which has pressure side and suction side
DE102008059205B4 (en) * 2008-11-27 2012-10-04 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Bidirectional conveyor
DE102008059205B9 (en) * 2008-11-27 2012-12-27 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Bidirectional conveyor
RU2786304C1 (en) * 2022-07-05 2022-12-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Multistage diaphragm pump

Also Published As

Publication number Publication date
DE4427981C1 (en) 1995-12-07
AU4171296A (en) 1996-03-29
DE19581003D2 (en) 1998-01-08
WO1996008130A3 (en) 1996-10-17

Similar Documents

Publication Publication Date Title
EP0381835B1 (en) Process and device for controlling a pressurised-air-actuated double diaphragm pump
WO2000063556A1 (en) Rotary piston drive mechanism
DE4427981C1 (en) Hydraulic or pneumatic piston and/or membrane pump
EP0840851A1 (en) Pump
DE69723144T2 (en) Double diaphragm pump
DE102007034296A1 (en) linear compressor
CH630443A5 (en) Double-acting piston pump
DE102010039981B4 (en) Pressure supply unit for a fluid unit and fluid unit
DE102014213391A1 (en) Piston compressor in star configuration and method of operation
AT514737B1 (en) Solvent pump
DE10019108A1 (en) Oscillating piston drive
EP1599672B1 (en) Thick material pump
DE10240334B4 (en) Electro-hydraulic actuator
DE102012004735A1 (en) Lifting piston pump for e.g. dosage of fuel to heating system of vehicle, has movable tubular armature partially and axially movable with part of length of armature on fixed bar and dynamically sealingly supported with respect to bar
DE4026670C2 (en) Mechanical vacuum pump
DE102004042208A1 (en) Fluid e.g. hydraulic fluid, delivering piston pump for e.g. hydraulic braking system, has piston rod that is designed as drive rod and has ends, where one end is connected with linear motor and other end is connected with valve-control unit
DE10233502B4 (en) Four chamber diaphragm pump
EP0443665A1 (en) Pressure pump
CH573550A5 (en) Magnetic push pull compressor - has diaphragms or pistons which reciprocate by electro magnets
EP1466097A1 (en) Liquid pump
DE19958013A1 (en) Pneumatic component for a switch bearing
AT222304B (en) Heat pump
DE2508941A1 (en) Piston compressor for refrigeration unit - in which the output is controlled by a magnet coil
WO1991009228A1 (en) High-pressure swash-plate pump
DE909531C (en) Electro-hydraulic adjustment drive

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SI SK TJ TT UA US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SI SK TJ TT UA US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REF Corresponds to

Ref document number: 19581003

Country of ref document: DE

Date of ref document: 19980108

WWE Wipo information: entry into national phase

Ref document number: 19581003

Country of ref document: DE

NENP Non-entry into the national phase

Ref document number: 96509825

Country of ref document: JP

122 Ep: pct application non-entry in european phase