EP2478221A1 - Système permettant de faire sortir plusieurs masses de matière - Google Patents

Système permettant de faire sortir plusieurs masses de matière

Info

Publication number
EP2478221A1
EP2478221A1 EP10752784A EP10752784A EP2478221A1 EP 2478221 A1 EP2478221 A1 EP 2478221A1 EP 10752784 A EP10752784 A EP 10752784A EP 10752784 A EP10752784 A EP 10752784A EP 2478221 A1 EP2478221 A1 EP 2478221A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
valve
masses
mass
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
EP10752784A
Other languages
German (de)
English (en)
Other versions
EP2478221B1 (fr
Inventor
Christoph Schmid
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP2478221A1 publication Critical patent/EP2478221A1/fr
Application granted granted Critical
Publication of EP2478221B1 publication Critical patent/EP2478221B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities

Definitions

  • the invention relates to an output system for the removal and / or output of several masses, such as multi-component adhesives.
  • Such dispensing systems are used in particular in industry for dispensing, for example, two-component adhesives, the two different components being taken from corresponding containers.
  • Such a device is disclosed in US 4,304,529.
  • the apparatus is provided for dispensing two miscible liquids which can be dispensed in a predetermined ratio.
  • a first valve mechanism is provided, which is used to convey the first component, and a second valve mechanism for conveying the second component.
  • Both valve mechanisms are each connected to a pump and a metering unit, wherein the metering units and the valve mechanisms are controlled by means of a switching mechanism.
  • a constant ratio of the two components in the output can be achieved, so that after mixing the dispensing components, a uniform adhesive can be output.
  • the two valve mechanisms are connected via a common piston rod, which in each case drives a piston by means of a respective volume flow of the respective component.
  • the object of the invention is therefore to provide an improved device, which has a smaller footprint due to their design.
  • the basic idea of the invention is the provision of an output system for removing and / or dispensing a plurality of masses comprising a cylinder unit consisting of at least two double-acting cylinders each having a means of a piston rod displaceable piston for removal and / or output of each of the masses, wherein the piston rods arranged parallel to each other and are interconnected via at least one connecting element such that the connected piston rods are displaceable as a unit and a control tion unit consisting of at least two valves for controlling the supply and return of the mass to the cylinders.
  • a connecting element for connecting the mutually parallel piston rods in particular a synchronous displacement of the piston rods can be achieved, so that the connected piston rods are displaceable as a unit.
  • Another advantage is the use of synchronous cylinders as double-acting cylinders, wherein the piston rods are connected to each other on both sides of the cylinder by means of the connecting elements.
  • Such synchronous cylinders can stop a piston rod on both sides of the piston surface.
  • the use of synchronous cylinders has the advantage that when the piston is displaced in one stroke direction, mass is discharged out of the one chamber, wherein at the same time mass can be taken up by the second chamber. When reversing the stroke direction, a correspondingly opposite mass movement takes place.
  • the piston rods are connected to each other on both sides of the cylinder by means of the connecting elements.
  • slide valves to control the supply and return of the masses.
  • This is a valve in which the connections are connected or disconnected by a sliding element. Thereafter, the movement can be carried out in particular axially, rotationally or in a combination thereof.
  • an axial movement is used as well as a rectangular shape of the sliding element.
  • slide valves are also known as flat slide valves.
  • piston valves or rotary valves can be used, which are well known in the art.
  • the slide valves are pneumatically controlled. By the slide valves, the flow direction can be adjusted at the cylinder ports, which is particularly advantageous when using the same effect cylinders.
  • Another advantage is the use of slide valves, which have displaceable switching elements, which are displaceable by means of a shift rod, wherein the shift rods of the slide valves are arranged parallel to each other.
  • the parallel arrangement of the switching rod of the respective slide valves is particularly suitable for a parallel arrangement of the piston valves.
  • Rods of the double-acting cylinder for example, in terms of the position independence of the device according to the invention.
  • the piston rods or the shift rods in such an arrangement often act on the same forces, such as gravitational forces, which may be particularly advantageous in a tilt of the device with respect to a flat surface, so that a constant and synchronous mass output of all cylinders can be used.
  • Another advantage is the connection of the shift rails of the slide valves via at least one connecting element, so that the connected shift rails are displaceable as a unit.
  • a synchronous response of the cylinder can be achieved, which can lead to a synchronous mass output.
  • it can be ensured that in preferably pneumatically controlled shift rodss ⁇ even in case of failure of their pneumatic control by a further shift rod with intact pneumatic control by means of the connecting element is moved, so that a loss of work with the device is avoided.
  • Another advantage is the use of a feed pump for conveying at least one mass and the displacement of at least one piston, at least one cylinder by means of the mass.
  • a feed pump for conveying at least one mass and the displacement of at least one piston, at least one cylinder by means of the mass.
  • FIG. 1 shows a functional diagram of an output system according to the invention
  • FIG. 2 shows a perspective view of the dispensing system according to the invention from FIG. 1,
  • FIG. 3 shows a perspective view of the underside of the dispensing system from FIG. 2
  • FIG. 4 shows a sectional side view of a functional diagram of a valve-cylinder arrangement of the dispensing system from FIG. 2,
  • FIG. 5 shows the functional diagram from FIG. 4 in another state of the valve-cylinder arrangement with regard to the state shown in FIG. 4,
  • FIG. 6 shows a sectional side view of an alternative functional diagram of a valve-cylinder arrangement of the dispensing system from FIG. 2,
  • FIG. 7 shows the functional diagram from FIG. 6 in another state of the valve-cylinder arrangement with regard to the state shown in FIG. 6,
  • An output system 100 shown in the figures is particularly suitable for conveying and dispensing a product consisting of several masses.
  • a two-component adhesive is used as the product to be conveyed and dispensed.
  • a promotion of other multi-component products especially in industry and trade, for example in the chemical or pharmaceutical industry, conceivable.
  • Even the use of the dispensing system 100 in the food industry is conceivable.
  • FIG. 1 shows a functional diagram of an output system 100 according to the invention, with further peripheral and / or additional devices, which need not necessarily be part of the output system 100.
  • the dispensing system 100 has a cylinder unit 300 consisting of a first cylinder 301 and a second cylinder 304.
  • the cylinders 301, 304 serve to convey the masses to be dispensed in a predetermined ratio.
  • Double-acting cylinders 301, 304 are used in the dispensing system 100 shown, each having a piston 303 displaceable by means of a piston rod 302, 305 for the removal and / or dispensing of a respective mass.
  • the piston rods 302, 305 are arranged parallel to each other in the embodiment shown and connected to the protruding from the cylinder housings ends via two Kolbenstangenjoche 307 as connecting elements such that the connected piston rods 302, 305 are displaceable as a unit. In this way it can be ensured that the masses are always output in the same ratio, since it can be ensured by the connection of the piston rods 302, 305 that the pistons of the cylinders 301, 304 always move together and at the same speed.
  • the ratio of the masses to each other is determined by the displacement of the cylinder 301, 304. The larger the displacement of a cylinder 301, 304, the more mass can be output.
  • one cylinder 301 has a smaller diameter than the second cylinder 304 for the same length. Consequently, less mass is conveyed by means of the first cylinder 301 than by means of the second cylinder 304.
  • a change in the mass ratio for example with a desired change in the composition of the product to be dispensed, can be ensured, for example, by replacing one of the cylinders 301, 304.
  • the compound between the piston rod yokes 307 and the piston rods 302, 305 be separable or detachable.
  • the space required can be minimized.
  • the piston rod yokes 307 for connecting the mutually parallel piston rods 302, 305 in particular a synchronous displacement of the piston rods 302, 305 can be achieved, so that the connected piston rods 302, 305 are displaceable as a unit.
  • the dispensing system can also be used for conveying and dispensing a product, which is composed of three or more masses.
  • other cylinders not shown, are used, wherein the piston rods of these cylinders are preferably arranged parallel to the piston rods 302, 305 of the illustrated cylinders 301, 304 and connected to same by means of piston rod yoke 307.
  • the dispensing system 100 comprises a control unit 200, consisting of two slide valves 201, 204 for controlling the supply and return of the masses to the cylinders 301, 304.
  • the slide valves 201, 204 are each via two valve inlets 216, 218 or two valve returns 217, 219 connected to the cylinders 301, 304 in order to allow a backflow of the mass.
  • a feed pump 500, 501 for conveying the two masses from in each case a first and a second supply 400, 401 is connected to the slide valves 201, 204 in each case by means of a supply line.
  • the cylinders 301, 304 of the dispensing system 100 shown do not have their own drive. Rather, the pistons of the cylinders 301, 304 are displaced by the masses themselves by means of the feed pumps 500, 501 within the cylinders 301, 304, wherein the control unit 200 controls the supply and return of the masses to and from the cylinders 301, 304.
  • output valves are connected to the spool valves 201, 204, which allow a mass output to a mixing device 600, in which the conveyed masses are mixed together.
  • the multicomponent mixture resulting from the components can then be dispensed or removed by means of a dispensing opening.
  • FIG. 2 shows a perspective view of the top of a dispensing system 100 according to the invention.
  • the dispensing system is shown without further peripheral and auxiliary devices which serve to dispense a multi-component product.
  • feed pumps for the masses, pneumatic units for controlling and mixing devices for the masses are not displayed.
  • the illustrated dispensing system 100 according to the invention is used for the output synchronization of the output masses in a fixed ratio.
  • the cylinder unit 300 is provided with the two connected by a mounting plate 306 cylinder 301, 304, wherein the mutually parallel piston rods 302, 305 are connected at their two protruding from the cylinder housings ends by means of two piston rod yoke 307 such that they together as a unit are displaceable.
  • the cylinders 301, 304 are driven by the masses by means of the feed pumps, not shown.
  • double-acting cylinders 301, 304 are used. More precisely, synchronizing cylinders 301, 304 are used, which have piston rods 302, 305 on both sides of the pistons hidden by the cylinder housings. By promoting the masses and the filling of a chamber of a cylinder 301, 304 on each side of the piston, the pistons are moved. By the connection of the two piston rods 302, 305 by means of the piston rod yokes 307, an offset of the piston of the first cylinder 301 leads to an offset of the piston of the second cylinder 304 and vice versa.
  • the cylinder 301, 304 connected to the weaker feed pump can nevertheless brake the respective other cylinder 301, 304 due to the connection of the piston rods 302, 305. In any case, a common movement of the piston rods 302, 305 and thus the piston can be ensured.
  • the cylinder unit 300 is connected to the control unit 200 consisting of the first spool valve 201 and the second spool valve 204.
  • the slide valves 201, 204 serve to control the supply and return of the masses, in particular for the cylinders 301, 304.
  • the first slide valve 201 has a switching rod 202 protruding from the valve housing on both sides. The also protruding from both sides of the valve housing switching rod of the second slide valve 204 is covered by the cylinder unit 300.
  • Both shift rails 202 are arranged parallel to one another and connected to one another via a valve yoke 206 such that the connected shift rails 203, 205 are displaceable as a unit.
  • the dispensing system 100 shown has a pneumatic cylinder 700 arranged between the two slide valves 201, 204 with a piston rod 702, which protrudes from the housing of the pneumatic cylinder 700 on both sides.
  • the piston rod 702 is connected to the valve yoke 206.
  • the valve yoke 206 can be displaced by a displacement of the piston rod 701, which results in a displacement of the shift rods 202 of the two slide valves 201, 204.
  • the output system 100 has a first connection adapter 207 and a second connection adapter 210.
  • the first connection adapter 207 has a supply opening 208 for the supply of the mass by means of preferably a feed pump and a concealed return opening to which, for example, a mixing device, not shown, for mixing the masses can be connected.
  • the second connection adapter also has in each case a supply and return opening, which, however, are concealed in the dispensing system 100 shown.
  • FIG. 3 shows a perspective view of the underside of the dispensing system 100 from FIG. 2.
  • the valve unit 200 connected to the cylinder unit 300 can be seen, consisting of the adjoining slide valves 201, 204.
  • the pneumatic cylinder 700 is provided between the slide valves 201, 204.
  • the same has a plurality of pneumatic connections 701.
  • the piston rod 702 of the pneumatic cylinder 700 can be displaced.
  • the same is connected to the protruding from the housing of the pneumatic cylinder ends via the Ventiljoche 206 with the mutually parallel shift rails 202, 205 of the slide valves 201, 204.
  • the two shift rails 202, 205 By a displacement of the piston rod 702 so the two shift rails 202, 205 can be moved so that the supply and return for the cylinder unit 300 by means of the control unit 200 via the pneumatic cylinder 700 can be controlled.
  • the connection of the two shift rails 202, 205 via the Ventiljoche 206 By the connection of the two shift rails 202, 205 via the Ventiljoche 206, a synchronous displacement of the shift rails 202, 205 can be ensured by means of the piston rod 702 and thus a synchronous control of the cylinder of the cylinder unit.
  • the slide valves 201, 203 may additionally or alternatively be provided with further pneumatic connections 213 in order to allow an additional or alternative activation of the slide valves 201, 203.
  • the slide valves 201, 203 can be controlled directly pneumatically, so that it is possible to dispense with the pneumatic cylinder.
  • the dispensing system 100 has the first and second connection adapters 207, 210, the first connection adapter 207 providing a feed opening 208 for the mass supplied by the feed pump, not shown, and the second connection adapter 210 providing a feed opening 21 1.
  • the return openings of the two adapters 207 , 210 are hidden.
  • Figure 4 is a sectional side view of a functional diagram of a valve-cylinder assembly of the dispensing system 100 of Figure 2.
  • the sectional view shows the first spool valve 201 and the first cylinder 301, however, the unillustrated second spool valve and the second cylinder may perform the same operation and the same Have features.
  • the slide valve 201 is controlled directly pneumatically in the present embodiment. It thus eliminates the use of the above-described pneumatic cylinder for controlling the slide valve 201. Rather, on a valve housing 214 of the slide valve Valves 201 provided at both end portions pneumatic ports 213, which communicate with a first and a second operating space 221, 222.
  • a shift rod 202 is provided with a plurality of switching elements 203, which can be moved.
  • the shift rod 202 protrudes on both sides of the spool valve 201 through valve bores 215 out of the housing 214 of the same and is here connected by means of one or more Ventiljochs not shown with the one or more slide valves.
  • the switching elements 203 are firmly connected to the shift rod 202.
  • the operating areas 221, 222 facing switching elements 203 serve to seal the operating spaces 221, 222 and serve as Verschubkolben for displacement of the shift rod 202 at a pressurization of the operating spaces 221, 222.
  • the second operating space 222 of the spool valve 201 by means of one of the pneumatic connections 213 was pressurized, so that the shift rod 202 has been moved with the switching elements 203 in a first direction of pressure action 223.
  • the shift elements 203 may include first and second valve inlets 216, 218 and first and second valve returns 217, 219 and corresponding first and second inlets 311 , 313 and first and second recirculation channels 312, 314 on the side of the cylinder 301 to enable communication between the cylinder 301 and, for example, the feed pump and the dispenser, such as a dispenser-type mixer.
  • the cylinder 301 has four-way valves 310, to which the inlets 31 1, 313 and returns 312, 314 are connected or provided.
  • the housing of the cylinder 301 encloses a tubular chamber 309 into which a piston 303 connected to the piston rod 302 can be displaced, dividing the tubular chamber 309 into two regions.
  • the cylinder 301 is filled with the mass 220 to be dispensed. That is, the mass 220 fills the tubular chamber 309 on both sides of the piston 303.
  • the piston rod 302 protrudes on both sides of a cylinder housing 308 from the same and can be connected at the protruding ends via one or more above-described connecting yokes with other cylinders to ensure synchronization of the cylinder used.
  • the switching elements 203 allow a communication between the second valve inlet 218 and the second inlet 313 of the cylinder 301 and between the second return 314 of the cylinder and the second valve return 219th
  • the valve inlet to the 218th connected feed pump the mass 220 in a product flow direction 316 through the slide valve 201 in the one side of the tubular Pump chamber 309 of the cylinder and thereby move the piston 303 in a piston movement direction 315.
  • the piston 303 pushes the mass 220 provided on the other side of the tubular chamber 309 out of the open return 314 through the slide valve 201 to the valve return 219 and, for example, to a connected mixing device.
  • the cylinder 301 thus does not have its own drive for displacing the piston 303.
  • the displacement is effected via the mass 220 itself, for example with the aid of a prefeed pump.
  • the predetermined ratio of the masses 220 to be dispensed is determined by the compulsory displacement of the piston rods 302,
  • the switching rods 202, 205 of the slide valves 201, 204 are preferably connected by means of valve yokes 206, so that a synchronous control of the cylinders 301, 304 can be ensured.
  • FIG. 5 shows the functional diagram from FIG. 4 in another state of the valve-cylinder arrangement with regard to the state shown in FIG.
  • the first actuating chamber 221 of the slide valve 201 has been pressurized by means of the pneumatic connection 213, so that the switching rod 202 has been displaced in a second pressure acting direction 224.
  • the switching elements 203 enable a communication between the first valve inlet 216 and the first inlet 31 1 of the cylinder 301 and between the first return 312 of the cylinder and the first valve return 217.
  • a communication between the other inlets and returns 218, 219, 313, 314 is prevented by the switching elements 203.
  • the feed pump can thus deliver the mass 220 to be dispensed into the other side of the tubular chamber 309 with respect to the valve cylinder assembly operating state shown in FIG. 4 so that the piston 303 is displaced in the opposite direction in the piston travel direction 315 and again the mass 220 is displaced from the tubular one Chamber 309 can output by means of the open return 312 through the slide valve 201 to the valve return 217 in the product flow direction 316.
  • valve inlets 216, 218 can open in a common feed opening, which is connected to a single feed pump for delivering the mass to be dispensed 220 from a supply.
  • the valve returns 217, 219 can also be connected to a common return port to which a mixer can be connected to the mit- Means of the cylinder 301, 304 output masses 220 to mix together and output via a discharge opening in the mixed state.
  • FIG. 6 shows a sectional side view of an alternative functional diagram of a valve-cylinder arrangement of the dispensing system of FIG. 2.
  • the slide valve 201 which is connected to the cylinder 301.
  • the slide valve 201 here also has a switching rod 202, which projects out of the valve housing 214 at both ends. At the protruding ends of the shift rod is connected via a not shown Ventiljoch with shift rails further slide valves, not shown.
  • the valve yoke engages a piston rod of a pneumatic cylinder, not shown, which allows a shift of the shift rod 202 of the slide valve 201 together with the other shift rods of the other slide valves as a unit.
  • the slide valve 201 shown in FIG. 6 has valve inlets or valve returns 216, 217, 218, 219, which can be covered or released by the switching elements 203 displaceably arranged within the housing 214 by means of the shift rod 202 in order to engage with a combined first and return 31 1, 312 and a second combined feed and return 313, 314 to communicate.
  • the use of these combined inlets and outlets 31 1, 312, 313, 314 have the advantage that they can be used for product flow directions 316 from the sliding valve 201 in the direction of cylinder 301 and in the opposite direction, depending on how the switching elements 203 of the slide valve 201, a promotion of the mass 220, for example by means of the feed pump and an output possibility of the mass 220, for example, to provide a mixer.
  • the operation of the cylinder 301 itself takes place in accordance with the cylinder 301 in FIGS. 4 and 5.
  • the piston 303 is displaced by the mass 220 itself by means of, for example, a feed pump, not shown, so that the mass 220 can be dispensed.
  • a separate drive of the cylinder 301 is preferably not provided.
  • one or more further cylinders 304 are connected to the ends of the piston rod 302 protruding from the housing 308 via a connecting means, for example via an already described piston rod yoke 307, via their respective piston rods 305, as is shown for example in FIGS 3 is shown.
  • FIG. 7 shows the functional diagram of FIG. 6 in another state of the valve-cylinder arrangement with regard to the state shown in FIG.
  • the shift rod 202 of the slide valve 201 has been displaced by means of the pneumatic cylinder, not shown, that the switching elements 203, a communication between the first valve inlet 216 and the first inlet 31 1 of the cylinder 301 and between the first return 312 of the cylinder and the first valve return 217.
  • a communication of the other supply and return 218, 219 with the cylinder 301, which could lead to a malfunction or a jam of the mass 220 in the combined inlets and outflows 31 1, 312, 313, 314 of the cylinder 301 is prevented by the switching elements 203.
  • the piston 303 is moved by means of the mass 220 in the piston movement direction 315, opposite to the direction in the case shown in Figure 6, resulting in an output of the mass 220 in the product flow direction 316 by means of the open return 312 through the slide valve 201 to the valve return 217.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Accessories For Mixers (AREA)

Abstract

La présente invention concerne un système (100) permettant de prélever et/ou de faire sortir plusieurs masses de matière (220), présentant : une unité à cylindres (300) qui se compose d'au moins deux cylindres à double action (301, 304) comprenant respectivement un piston (303) qui peut se mouvoir au moyen d'une tige de piston (302, 305) et permettant le prélèvement et/ou la sortie respectivement de l'une des masses de matière (220), les tiges de piston (302, 305) étant disposées parallèlement entre elles et étant reliées entre elles par au moins un élément de liaison (307) de sorte que les tiges de piston (302, 305) reliées peuvent se mouvoir en tant qu'unité; et une unité de commande (200) qui se compose d'au moins deux clapets (201, 204) destinés à commander l'amenée ou le retour des masses de matières aux cylindres (301, 304).
EP10752784.8A 2009-09-18 2010-09-06 Systeme de distribution pout une pluralite de masses Not-in-force EP2478221B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009029607A DE102009029607A1 (de) 2009-09-18 2009-09-18 Ausgabesystem für mehrere Massen
PCT/EP2010/063039 WO2011032855A1 (fr) 2009-09-18 2010-09-06 Système permettant de faire sortir plusieurs masses de matière

Publications (2)

Publication Number Publication Date
EP2478221A1 true EP2478221A1 (fr) 2012-07-25
EP2478221B1 EP2478221B1 (fr) 2014-04-30

Family

ID=43385131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10752784.8A Not-in-force EP2478221B1 (fr) 2009-09-18 2010-09-06 Systeme de distribution pout une pluralite de masses

Country Status (4)

Country Link
US (1) US8640601B2 (fr)
EP (1) EP2478221B1 (fr)
DE (1) DE102009029607A1 (fr)
WO (1) WO2011032855A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10568811B2 (en) * 2016-02-22 2020-02-25 R.P. Scherer Technologies, Llc Multiple-fluid injection pump
US20190334176A1 (en) 2018-04-26 2019-10-31 Yeong Woo Kim Devices and methods for preparing a slurry and coating a substrate with a slurry
CN112664504B (zh) * 2020-12-28 2023-08-22 上海康恒环境股份有限公司 一种液压油路串并联自动切换方法

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US3672389A (en) * 1970-09-10 1972-06-27 Automatic Sprinkler Corp Liquid proportioning device
US4093404A (en) * 1975-12-19 1978-06-06 Celanese Corporation Apparatus for preparation of matrices containing frangible particulate matter
US4030860A (en) * 1976-03-15 1977-06-21 Standlick Ronald E Variable proportional metering apparatus
US4304529A (en) 1979-09-26 1981-12-08 Horst Gerich Apparatus and method for delivering and metering fluids
DE19511758A1 (de) * 1995-03-30 1996-10-02 Klaus Obermann Gmbh Dosier- und Injektionspumpenanordnung
DE29706074U1 (de) * 1997-04-07 1997-07-31 WiWa Wilhelm Wagner GmbH & Co KG, 35633 Lahnau Dosierpumpe
AT2517U1 (de) * 1997-09-25 1998-12-28 Engel Gmbh Maschbau Einrichtung zum einspritzen eines aus mindestens zwei komponenten bestehenden kunststoffes in eine form
US8037678B2 (en) * 2009-09-11 2011-10-18 Sustainx, Inc. Energy storage and generation systems and methods using coupled cylinder assemblies

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Also Published As

Publication number Publication date
EP2478221B1 (fr) 2014-04-30
US20120285151A1 (en) 2012-11-15
US8640601B2 (en) 2014-02-04
DE102009029607A1 (de) 2011-03-24
WO2011032855A1 (fr) 2011-03-24

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