EP0226070B1 - Dispositif de pompage pour débiter des quantités prédéterminées d'au moins deux composants - Google Patents

Dispositif de pompage pour débiter des quantités prédéterminées d'au moins deux composants Download PDF

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Publication number
EP0226070B1
EP0226070B1 EP86116152A EP86116152A EP0226070B1 EP 0226070 B1 EP0226070 B1 EP 0226070B1 EP 86116152 A EP86116152 A EP 86116152A EP 86116152 A EP86116152 A EP 86116152A EP 0226070 B1 EP0226070 B1 EP 0226070B1
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EP
European Patent Office
Prior art keywords
pump
stroke
actuating rod
rod
arrangement 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.)
Expired - Lifetime
Application number
EP86116152A
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German (de)
English (en)
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EP0226070A3 (en
EP0226070A2 (fr
Inventor
Wolfgang Kuhn
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.)
Graco Verfahrenstechnik GmbH
Original Assignee
Graco Verfahrenstechnik GmbH
Boellhoff Verbindungstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Graco Verfahrenstechnik GmbH, Boellhoff Verbindungstechnik GmbH filed Critical Graco Verfahrenstechnik GmbH
Priority to AT86116152T priority Critical patent/ATE58208T1/de
Publication of EP0226070A2 publication Critical patent/EP0226070A2/fr
Publication of EP0226070A3 publication Critical patent/EP0226070A3/de
Application granted granted Critical
Publication of EP0226070B1 publication Critical patent/EP0226070B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time

Definitions

  • the invention relates to a pump arrangement for the metered delivery of at least two components with an adjustable mixing ratio, in which at least one double pump is provided for each component, which has two alternately pumping, parallel connected individual pumps, in which each individual pump has a pump element delimiting a pump chamber, in particular a membrane, which is coupled on its side facing away from the pump chamber with one end of a reciprocating actuating rod, in which a motor is common to all actuating rods and in which an adjusting device for changing the mixing ratio by adjusting the effective stroke volume of the two Single pumps at least one double pump is provided.
  • a known pump arrangement of this type (GB-A-2 147 056) the motor is combined with the one double pump in that the mutually facing cylinder spaces of the individual pumps are alternately placed under a vacuum and at atmospheric pressure with the aid of a valve.
  • Such an integrated motor is limited in its application; Both the size of its pressure surface and the level of the pressure load are specified by the associated pump.
  • the actuating rods of two double pumps are articulated to a swivel lever, the fixed inclined bearing of which can be adjusted in a central plane of the pump arrangement in order to change the mixing ratio of the two double pumps.
  • the displacement pistons are the displacement pistons provided at the ends of the piston rod of a pneumatic axial piston motor.
  • the drive can also take place by means of a rotating eccentric, which is arranged between the two sections of a divided actuating rod.
  • One working cylinder is axially adjustable from the free end face, so that the effective stroke volume and thereby the mixing ratio can be changed by moving openings in the working cylinder which are connected to a refill chamber. If this adjustment device is present, the membrane of the associated individual pump cannot extend coaxially to the displacement piston, but must be arranged in a lateral extension of the housing.
  • Each of the two individual pumps conveys a component of a product, such as paint, varnish, resin or the like, the mixing ratio being adjustable using the adjustment device.
  • a component of a product such as paint, varnish, resin or the like
  • the mixing ratio being adjustable using the adjustment device.
  • the two individual pumps are always operated alternately, the two components are fed at different times. In many cases, this is annoying.
  • the components are therefore first placed in a mixing container. Otherwise, the composition of a color or the curing behavior of a varnish would change during application due to the fluctuating mixing ratio.
  • the invention is based on the object of specifying a pump arrangement for the metered delivery of at least two components, in which the adjustable mixing ratio remains largely constant over time and a motor which is separate from the pumps is used.
  • the motor is an axial piston motor separated from the individual pumps, the drive rod of which moves the actuating rods back and forth in synchronism via a driver, and in that the adjusting device is formed in that the actuating rod of the at least one double pump is divided, that the axial distance of the rod parts from one another can be changed symmetrically by a coupling device, and that the actuating rod have a variable ineffective initial stroke (idle stroke) in order to change the effective stroke volume of the associated pump elements.
  • the main component can be pumped with the full motor stroke regardless of the adjustment. Since alternately actuated individual pumps are provided for each component, each component is delivered with a quantity that is approximately constant over time. The delivery rates of the components are proportional because of the common drive.
  • the coupling device ensures that the adjustment devices assigned to a double pump can only be actuated together. It is therefore ensured that both individual pumps each deliver the same stroke volume and therefore no cyclical changes in the mixing ratio can occur. It is thus possible for the components to be fed directly to a spray or spray gun in a mixing room without prior calming, so that the mixing takes place only inside the gun or even only in the spray jet or when it hits the object to be coated.
  • a driver connecting the actuating rods to the motor can be moved back and forth in a space between two housing parts, each of which has a working cylinder and a pump element of each double pump and a guide for a drive rod of the motor, and that the motor is arranged on the outside of one housing part.
  • the pump elements of a housing part can be formed by a common membrane plate. This simplifies the assembly of the housing parts.
  • a refill chamber common to all the displacements located therein is provided in each housing part.
  • the entire cavity of the housing part outside the working cylinder and the guide of the drive rod can be used as a refill chamber.
  • the coupling device is particularly advantageously arranged in the free space and is accessible from the outside. You can therefore easily make the desired adjustment from the outside.
  • the actuating rod is divided into at least one double pump and that the distance between the rod parts from one another can be changed by the coupling device in order to give the actuating rod a variable, ineffective initial stroke (idle stroke) and thereby to change the effective stroke volume of the associated pump elements. Since the rod parts are adjacent to each other, there is a simple coupling device. With the help of the variable empty stroke, the delivery volume can be changed easily.
  • the coupling device can be formed by a turnbuckle sleeve which has a torque engagement surface and is in engagement with one rod part via a right-hand thread and with the other rod part via a left-hand thread.
  • the ends of the actuating rod are each provided with a displacer piston that can be displaced in a working cylinder and if the displacement of each working cylinder is connected to a liquid-filled working chamber on the side of the pump element facing away from the pump chamber, i.e. a hydraulic coupling between the actuating rod and the pump element takes place, it is recommended that that housing-fixed openings, which are connected to a refill chamber, are provided.
  • the variable idle stroke results from the different initial position of the displacer with respect to the openings.
  • each displacement piston is sealed in the working cylinder with a sealing ring and is axially displaceable by a limited amount relative to the actuating rod, that its drive during the pressure stroke by contacting an end face of the actuating rod on the end face of the displacer piston facing away from the displacement and during the suction stroke by means of two oppositely directed driving surfaces on the actuating rod and displacement piston, and in that a valve opening towards the refill chamber forms the end faces of the actuating rod and displacer piston lying one on top of the other during the pressure stroke.
  • a spring is connected between the driving surfaces and that a stop is provided which stops the return movement of the displacement piston during the suction stroke before the actuating rod reaches its end position.
  • the refill valve remains closed until the end of the suction stroke, regardless of the setting of the adjustment device. A return of the membrane to the starting position is therefore also possible without a return spring or with a weak return spring.
  • a mechanical coupling between the actuating rod and the pump element can also be provided.
  • the pump elements can be pressed against an end stop by a return spring and that the ends of the actuating rod engage the pump element in a force-locking manner.
  • the ends of the actuating rod are provided with a damping element which occurs on the pump element. This reduces noise.
  • the pump arrangement illustrated in FIG. 1 has a housing 1 which consists of two housing parts 2 and 3 which are connected to one another by a base 4.
  • the housing part 2 consists of an outer plate 5, an intermediate part 6 and an inner plate 7.
  • the housing part 3 consists of an outer plate 8, an intermediate part 9 and an inner plate 10.
  • Between the outer plate 5 and the intermediate part 6 is a common membrane plate 11 , a common membrane plate 12 clamped between the outer plate 8 and the intermediate part 9.
  • a pneumatic axial piston motor 13 is illustrated on the side next to the housing part 2, the piston 14 of which is moved back and forth in a cylinder 15 with the aid of compressed air. The Reversal takes place with a slide control device 16 that is not shown in detail.
  • a drive rod 17 is connected to the piston 14 and is mounted in a guide 18 of the housing part 2 and in a guide 19 of the housing part 3.
  • the housing 1 there are two double pumps, each consisting of a pair of single pumps 20, 21 or 22 and 23. They are each assigned to a component and therefore connected in parallel.
  • two displacement pistons 24 and 25 are provided on the driving ends of an operating rod 26 and two displacement pistons 27 and 28 on the driving ends of an operating rod 29.
  • These displacement pistons are each immersed in working cylinders 30 to 34, which are formed in the intermediate parts 6 and 9.
  • the actuating rods 26 and 29 are pushed axially back and forth by the drive rod 17 via a yoke-like driver 35.
  • each pump has a pump element 36 in the form of a membrane, which separates a pump chamber 37 from a liquid-filled working space 38 which is connected to the displacement 39 of the associated working cylinder. Therefore, the pump element 36 is displaced during the pressure stroke of the displacement piston in the sense of reducing the size of the pump chamber 37, as is illustrated in the drawing for the individual pumps 20 and 22. In contrast, during the suction stroke, the pump element 36 is displaced in the sense of an enlargement of the pump chamber 37, as is illustrated in the drawing for the individual pumps 21 and 23.
  • both housing parts 2 and 3 there is a refill space 40 and 41, respectively, which is connected to the displacement 39 via an opening 42 fixed to the housing when the end face 43 of the associated displacement piston 25 releases the opening in the area of the suction-side dead center.
  • the effective pressure stroke only begins when this opening is closed again.
  • the actuating rod 29, as shown in FIGS. 1 and 3 consists of two rod parts 46 and 47.
  • the rod part 46 has a left-hand thread as the adjusting device 49 and the rod part 47 has an adjusting device 50 a right-hand thread.
  • the coupling device 51 is a turnbuckle sleeve with a hexagon as a torque engagement surface 52 and an internal left-hand thread 53 and an internal-right-hand thread 54. By rotating this coupling device 51, the distance between the rod parts 46 and 47 is changed symmetrically, so that the stroke volumes of the Individual pumps 22 and 23 can be changed by the same values.
  • the coupling device 51 is located in an externally accessible space 55 between the two housing parts 2 and 3, the desired change in volume can be carried out comfortably. If the total delivery rate is to be changed, this can be achieved by throttling the air flow that drives the motor 13 or by limiting the stops of the piston 14.
  • Fig. 2 shows schematically the circuit of the pump arrangement.
  • the control device 16 is supplied with compressed air from a compressed air source 56.
  • the suction connections T of the pumps 20 and 21 are connected via a line system to a reservoir 58 for a first component and the suction connections T of the individual pumps 22 and 23 via a line system 59 to a reservoir 60 for a second component.
  • the pressure connections P of the individual pumps 20 and 21 are connected in parallel via a line system 61 and connected to the connection 62 of a two-component spray device 63.
  • the pressure connections P of the individual pumps 22 and 23 are connected in parallel via a line system 64 and connected to a connection 65 of the spray device 63.
  • a spray jet consisting of one component each is simultaneously delivered to the spray nozzles 66 and 67 of this spray device.
  • the components mix in the spray jet and when they hit the material to be coated.
  • a modified displacement piston 125 is illustrated on the right in FIG. 3, which is guided in its working cylinder 131 in a sealed manner with a sealing ring 168. It is axially displaceable relative to the actuating rod 29 by a limited amount against the force of a spring 169. This extends between a driving surface 170 on the displacer piston 125 and an opposing driving surface 171 on a head 172 connected to the actuating rod 29 via a pin.
  • Stops 173 on the inner plate 110 limit the backward movement of the displacer piston 125, even if the actuating rod 29 moves even further .
  • a valve 174 is opened, which is formed between a sealing ring on the end face 175 of the displacer 125 and the end face 176 of the actuating rod 29.
  • the displacer piston 125 is driven when it is pressed by the abutment of this end face 176 against the end face 175 of the displacer piston 125, while during the suction stroke the entrainment takes place via the entrainment surface 171, the spring 169 and the entrainment surface 170.
  • the effective pressure stroke therefore only begins when the piston rod 29 takes the displacement piston 125 with it.
  • the single pump 222 has a membrane-like pump element 236, which is clamped between the housing parts 205 and 206. It is reinforced by an insert 277, which has a screwed-in stop element 278 on the outside. A return spring 279 extends between the latter and the housing part 206 and forces the pump element 236 into the illustrated rest position.
  • the actuating rod 229 consists of a rod part 246 with left-hand thread 249 and a rod part 247 with right-hand thread 250. The two threads 249 and 250 engage in a hexagon nut 252 of the coupling device 251.
  • the nut 252 is located between two arms of a driver 235.
  • the actuating rod 229 In the illustrated position, the actuating rod 229 has its greatest length. It rests with the damping elements 282 on the pump elements 236. When actuated by the motor 13, the pump elements 236 therefore carry out the full working stroke V.
  • the coupling device 251 When the coupling device 251 is actuated, the end of the actuating rod 259 moves in one end position along the characteristic curve K. Therefore, the actuating rod must first undergo an idle stroke before the pump element 236 is taken. The effective working stroke and the delivery rate are reduced accordingly.
  • the complete idle stroke L which is equal to the working stroke V, is shown at the top in FIG. The funding volume would be zero here. In the middle, the actuating rod is at a distance U2 from the stop element 278. In this case, the delivery volume would correspond to half of the complete working stroke V. The same applies to the single pump actuated by the rod part 247.
  • the pump element 336 is provided with a return spring 379.
  • a support plate 383 serves as a stop.
  • a hydraulic coupling is provided between the displacement piston 327 and the pump element 336. If the rod part 346 moves to the left over the full stroke from the position shown in FIG. 5, an effective working stroke V results and the delivery volume of the individual pump 322 is correspondingly large.
  • the actuating rod 329 can be shortened by means of the coupling device 351 . Accordingly, the displacer moves in the right end position along the line K to the right. It is illustrated at the top in FIG.
  • the actuating rod 429 is provided at both ends with a valve head 484, in which a sealing ring 485 is arranged. The latter cooperates with the end face 475 of the displacement piston 425 to form a valve 474.
  • a plurality of ribs 486 centrally guide a rod 487 supporting the head 472 in the displacement piston 425.
  • the idle stroke is negligible.
  • the actuating rod 429 shorten on both sides according to the line K. It is therefore possible to change the effective working volume via a fifty percent idle stroke U2, ie a fifty percent working stroke V / 2 (middle of FIG. 6) up to a hundred percent idle stroke L (top in FIG. 6).
  • the illustrated exemplary embodiments can be varied in many ways without departing from the basic idea of the invention.
  • the stroke volumes can also be adjusted in that the displacement pistons are not adjustable relative to one another, but rather the working cylinders carrying the openings 42, 45. If their adjustment devices face each other in the free space 55, they can be adjusted symmetrically with a common coupling device.
  • other known motors for example rotating motors with an eccentric, can also be used.
  • Disc pistons known per se can also be considered as pump elements.
  • three or more double pumps can also be driven by one motor.
  • the associated actuating rods can run parallel to one another and can be arranged at the same angular distance on a circle around the drive rod of the motor, the driver having three or more arms offset from one another by the same angle instead of two arms lying opposite one another.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Accessories For Mixers (AREA)
  • External Artificial Organs (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Closures For Containers (AREA)
  • Rotary Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (11)

1. Dispositif de pompage pour la délivrance dosée d'au moins deux composants à rapport de mélange réglable, dans lequel est prévue, pour chaque composant, au moins une pompe double présentant deux pompes individuelles, branchées en parallèle et refoulant en alternance; dans lequel chaque pompe individuelle comporte un élément de pompage délimitant une chambre de pompage, en particulier une membrane qui est accouplée en mode entraînement, sur son côté tourné à l'opposé de la chambre de pompage, à une extrémité respective d'une tige d'actionnement menée en va-et-vient; dans lequel un moteur est commun à toutes les tiges d'actionnement; et dans lequel est prévu un dispositif de réglage pour modifier le rapport de mélange, par réglage du volume effectif refoulé par les deux pompes individuelles d'au moins l'une des pompes doubles, caractérisé par le fait que le moteur est un moteur (13) à piston axial, séparé des pompes individuelles (20,21,22,23) et dont la tige d'entraînement (17) imprime aux tiges d'actionnement (26, 29; 229; 329; 429) un coulissement alternatif en synchronisme, par l'intermédiaire d'un organe d'entraînement (35); et par le fait que la formation du dispositif de réglage résulte du fait que la tige d'actionnement (29; 229; 329; 429) de la pompe double prévue au minimum est scindée, que l'espacement axial mutuel des parties (46,47; 246, 247; 346; 446) des tiges peut être modifié symétriquement par l'intermédiaire d'un dispositif d'accouplement (51; 251; 351; 451), et que les tiges d'actionnement présentent, de ce fait, une course initiale inactive (course à vide) variable, de façon à modifier le volume effectif refoulé par les éléments de pompage associés (36; 236; 336; 436).
2. Dispositif de pompage selon la revendication 1, caractérisé par le fait que l'organe d'entraînement (35) peut être animé d'un mouvement alternatif, dans un espace libre (55), entre deux parties de carter (2, 3) qui comportent chacune l'un des cylindres de travail (30,31; 33, 34) et l'un (36) des éléments de pompage de chaque pompe double considérée, ainsi qu'un guide (18, 19) pour la tige d'entraînement (17) du moteur; et par le fait que le moteur (13) est installé à la face externe de l'une (2) des parties de carter.
3. Dispositif de pompage selon la revendication 1 ou 2, caractérisé par le fait que lés éléments de pompage (36) d'une partie de carter (2; 3) sont formés par une membrane discoïdale commune (11; 12).
4. Dispositif de pompage selon l'une des revendications 1 à 3, caractérisé par le fait qu'il est prévu, dans chaque partie de carter (2, 3), une chambre de post-remplissage (40; 41) commune à tous les compartiments de refoulement (39) situés dans ladite partie.
5. Dispositif de pompage selon l'une des revendications 1 à 4, caractérisé par le fait que le dispositif d'accouplement (51) se trouve dans l'espace libre (55), lequel est accessible de l'extérieur.
6. Dispositif de pompage selon l'une des revendications 1 à 5, caractérisé par le fait que le dispositif d'accouplement (51; 251; 351; 451) est formé par une lanterne de serrage qui présente une surface (52) d'application d'un couple de rotation, et est en prise avec l'une (47; 247) des parties de la tige par un filetage à droite (50; 250), et avec l'autre partie (46; 246) de la tige par un filetage à gauche (49; 249).
7. Dispositif de pompage selon l'une des revendications 1 à 6, caractérisé par le fait que les extrémités de la tige d'actionnement (26, 29) sont pourvues chacune d'un piston de refoulement (24, 25, 27, 28) pouvant coulisser dans un cylindre de travail (30, 31, 33, 24), dispositif dans lequel le compartiment de refoulement (39) de chaque cylindre de travail est relié à un compartiment de travail (38) emploi d'un fluide, du côté de l'élément de pompage (36) qui est tourné à l'opposé de la chambre de pompage (37); et par le fait que des orifices (42, 45; 345), prévus dans les cylindres de travail (30, 31, 33, 34; 333) et ménagés solidairement dans le carter, sont reliés à une chambre de post-remplissage (40, 41; 340).
8. Dispositif de pompage selon l'une des revendications 1 à 6, caractérisé par le fait que les extrémités de la tige d'actionnement (29; 429) sont pourvues chacune d'un piston de refoulement (125; 425) pouvant coulisser dans un cylindre de travail (131; 431), le compartiment de refoulement (139) de chaque cylindre de travail étant relié à un compartiment de travail emploi d'un fluide, du côté de l'élément de pompage qui est tourné à l'opposé de la chambre de pompage; par le fait que chaque piston de refoulement (125; 425) est rendu étanche, dans le cylindre de travail (131; 431), par une bague d'étanchement (168), et peut coulisser axialement d'une distance limitée par rapport à la tige d'actionnement (29; 429); par le fait que son entraînement est assuré, lors de la course de compression, par application d'une surface extrême (176; 476) de la tige d'actionnement contre la surface extrême (175; 475) du piston de refoulement qui est tournée à l'opposé du compartiment de refoulement et, lors de la course d'aspiration, au moyen de deux surfaces d'entraînement (170, 171), dirigées l'une vers l'autre, sur la tige d'actionnement et sur le piston de refoulement; et par le fait qu'une soupape (174; 474), s'ouvrant en direction de la chambre de post-remplissage, est formée entre les surfaces extrêmes de la tige d'actionnement et du piston de refoulement qui portent l'une contre l'autre lors de la course de compression.
9. Dispositif de pompage selon la revendication 8, caractérisé par le fait qu'un ressort (169; 469) est intercalé entre les surfaces d'entraînement (170, 171); et par le fait qu'il est prévu une butée (173; 473) qui stoppe le mouvement rétrograde du piston de refoulement (125; 425), lors de la course d'aspiration, avant que la tige d'actionnement (29; 429) atteigne sa position extrême.
10. Dispositif de pompage selon l'une des revendications 1 à 9, caractérisé par le fait que les éléments de pompage (236) peuvent être pressés contre une butée extrême par un ressort de rappel (279); et par le fait que les extrémités de la tige d'actionnement (229) sont mécaniquement en prise avec l'élément de pompage.
11. Dispositif de pompage selon la revendication 10, caractérisé par le fait que les extrémités de la tige d'actionnement (229) sont munies d'un élément amortisseur (282), qui vient incider sur l'élément de pompage (236).
EP86116152A 1985-12-13 1986-11-21 Dispositif de pompage pour débiter des quantités prédéterminées d'au moins deux composants Expired - Lifetime EP0226070B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116152T ATE58208T1 (de) 1985-12-13 1986-11-21 Pumpenanordnung zur dosierten abgabe von mindestens zwei komponenten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3544016 1985-12-13
DE19853544016 DE3544016A1 (de) 1985-12-13 1985-12-13 Pumpenanordnung zur dosierten abgabe von mindestens zwei komponenten

Publications (3)

Publication Number Publication Date
EP0226070A2 EP0226070A2 (fr) 1987-06-24
EP0226070A3 EP0226070A3 (en) 1989-01-25
EP0226070B1 true EP0226070B1 (fr) 1990-11-07

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EP86116152A Expired - Lifetime EP0226070B1 (fr) 1985-12-13 1986-11-21 Dispositif de pompage pour débiter des quantités prédéterminées d'au moins deux composants

Country Status (7)

Country Link
US (1) US4806079A (fr)
EP (1) EP0226070B1 (fr)
JP (1) JPH0754118B2 (fr)
AT (1) ATE58208T1 (fr)
BR (1) BR8606157A (fr)
DE (2) DE3544016A1 (fr)
ES (1) ES2018467B3 (fr)

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US3769879A (en) * 1971-12-09 1973-11-06 A Lofquist Self-compensating diaphragm pump
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DE2312647A1 (de) * 1973-03-14 1974-09-19 Lupert Geb Ruck Rosemarie Dosierpumpe, insbesondere zum dosieren mehrerer kunstoffkomponenten
CH618787A5 (fr) * 1977-07-26 1980-08-15 Spuehl Ag
GB2059516B (en) * 1979-09-19 1983-09-07 Seeger Corp Two-component metering pumps
JPS5933909Y2 (ja) * 1980-06-27 1984-09-20 友衛 鈴木 往復動ポンプ
US4392508A (en) * 1981-04-15 1983-07-12 Ryco Graphic Manufacturing, Inc. Proportional mixing system with water motor drive
US4462764A (en) * 1981-11-12 1984-07-31 Zandt Hillard C Van Hydraulic long stroke pump
DE3233987C2 (de) * 1982-09-14 1985-10-17 Erich 7777 Salem Roser Membranpumpe mit Taumelringantrieb
GB2147056B (en) * 1983-09-21 1986-11-12 Loheat Ltd Liquid proportioning devices
JPS60192888A (ja) * 1984-03-13 1985-10-01 Yamada Yuki Seizo Kk 複数種流動材定量吐出装置
DE3542926A1 (de) * 1985-12-04 1987-06-11 Kopperschmidt Mueller & Co Pumpe

Also Published As

Publication number Publication date
US4806079A (en) 1989-02-21
DE3544016A1 (de) 1987-06-19
EP0226070A3 (en) 1989-01-25
EP0226070A2 (fr) 1987-06-24
ATE58208T1 (de) 1990-11-15
DE3544016C2 (fr) 1988-05-11
ES2018467B3 (es) 1991-04-16
BR8606157A (pt) 1987-09-22
DE3675509D1 (de) 1990-12-13
JPS62147066A (ja) 1987-07-01
JPH0754118B2 (ja) 1995-06-07

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