EP1773479A1 - Dispositif de dosage pour introduire un additif dans un courant de liquide - Google Patents
Dispositif de dosage pour introduire un additif dans un courant de liquideInfo
- Publication number
- EP1773479A1 EP1773479A1 EP05783999A EP05783999A EP1773479A1 EP 1773479 A1 EP1773479 A1 EP 1773479A1 EP 05783999 A EP05783999 A EP 05783999A EP 05783999 A EP05783999 A EP 05783999A EP 1773479 A1 EP1773479 A1 EP 1773479A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- venturi
- inlet
- additive
- flow
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 239000000654 additive Substances 0.000 title claims abstract description 34
- 230000000996 additive effect Effects 0.000 title claims abstract description 34
- 238000010790 dilution Methods 0.000 claims description 4
- 239000012895 dilution Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
- B01F35/8822—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type
- B01F35/88222—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type without external means for driving the piston, e.g. the piston being driven by one of the components
-
- 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
-
- 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
- F04B9/103—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 only one pumping chamber
- F04B9/105—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 only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
- F04B9/1053—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 only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor one side of the double-acting liquid motor being always under the influence of the liquid under pressure
Definitions
- the invention relates to a metering device for introducing an additive into a main liquid stream circulating in a pipe, which device comprises a reciprocating differential piston pump for withdrawing the additive from a container and dosing it, this pump having a first inlet for receiving a main liquid flow which drives the pump, a second inlet for withdrawing the additive and an outlet for the admixture of additive and main liquid.
- differential piston metering pumps which operate with reciprocating piston engine technology.
- the engine liquid usually water
- the reciprocating movement of the piston makes it possible to operate a second alternative pump, integrated in the first, to take the additive to be dosed and inject it into the main liquid or liquid.
- This type of metering pump has many advantages:
- the volume dosing ratio does not vary with the flow rate or the pressure of the liquid engine; - the metering pump has a large operating range in flow, the upper limitation being related to the maximum allowed frequency;
- the dosage remains constant despite variations in flow rate; the operation is not very sensitive to the pressure of the engine liquid;
- WO 02/02938 proposes a device that allows small dosages.
- this device uses periodic electric control means and solenoid valves, which complicates the installation and increases the cost.
- the object of the invention is, above all, to provide a dosing device which makes it possible in a simple and economical way to process high flow rates of main liquid with pumps of reduced dimensions and to increase the permitted range of dosages, in particular to small dosages.
- a metering device for introducing an additive into a main liquid stream flowing in a pipe, this device comprising a reciprocating differential piston pump for withdrawing the additive into a container and dosing it, this pump comprising a first inlet for receiving a main liquid flow which drives the pump, a second inlet for withdrawing the additive and an outlet for the admixture of additive and main liquid, is characterized in that it comprises a venturi arranged in the pipe and in that the pump is connected in parallel with the venturi, the first inlet of the pump being connected to the inlet of the venturi while the outlet of the pump is connected to the neck of the venturi.
- the geometry of the venturi is adjusted to the pressure drop of the pump between first inlet and outlet, to allow to obtain a substantially constant dosage despite the flow variations, and independent of the inlet pressure.
- the geometry of the venturi can be adjusted to establish in operation a pressure difference of about 1.5 bar and less than 2 bar between the inlet pressure and the pressure at the neck.
- the geometry of the venturi can be adjusted so that the pressure drop created by the venturi is less than 0.5 bar.
- An additional pressure drop can be created in the bypass circuit of the pump, in particular by a nozzle, in particular adjustable, preferably disposed at the outlet of the pump.
- the venturi can be set so that the ratio R is at least ten, or close to ten. Large flows can therefore be treated by smaller pumps.
- the ratio R may be greater than one hundred.
- the pump may be provided to allow a volume ratio between injected additive flow and engine liquid flow through the pump less than or equal to one thousandth (1/1000) while the volume dilution of the mixture exiting the pump in the main flow venturi crossing is less than one percent (1%) so that the volume dosage in the main flow is less than or equal to 10 ⁇ 5 or 10 ppm (10 parts per million).
- venturi and the pump form a together, and connection means are provided at the inlet and the outlet of the venturi for insertion and connection to two sections of the pipe.
- Fig. 1 is a diagram, partly outside, partly in section, of an installation with a metering device according to the invention.
- Fig. 2 is a simplified schematic view with part torn off the pump of the device, and Fig.3 shows in section on a larger scale a detail of a variant.
- a dosing device D for introducing a liquid additive A in a main liquid stream L, water in the example in question.
- the liquid additive A is contained in a container 1.
- Device D comprises a metering pump 2 arranged with its vertical axis.
- the pump 2 is of a known type, in particular manufactured and marketed by the applicant company DOSATRON INTERNATIONAL. An example of such pumps is described in EP 1 151 196 or US 6 684 753.
- the pump 2 comprises a reciprocating differential piston 3 which drives a piston 4 of smaller diameter, ensuring the pumping and injection of the additive A.
- the piston 4 slides in a chamber cylindrical auxiliary pump 5 connected by a sampling tube 6 to the container 1.
- the tube 6 immersed in the additive to be taken.
- the pump 2 comprises a first inlet 7 for receiving a flow of main liquid, generally water, which drives the differential piston 3.
- the pump 2 comprises a second inlet 8 located at the bottom of the auxiliary pump body 5 for the removal of the additive A, and an outlet 9 for the mixture of additive A and main liquid L.
- Conventional means with valves or analogues are provided for controlling the reciprocating movements of the piston 3. These known means are not shown or described.
- Device D comprises a venturi 10 which has an inlet section 11, a neck 12 of reduced section and an outlet section 13.
- the pump 2 is connected in parallel with the venturi 10, the first inlet 7 of the pump being connected by a pipe 14 to the inlet 11 of the venturi while the outlet 9 of the pump is connected by a pipe 15 to the neck 12 of the venturi .
- the cross sections of the different parts of the venturi are preferably circular, but could have a different shape, for example rectangular.
- the pressure difference (Pe -Pc) between the inlet and the neck of the venturi is related to the geometry (section variation) and the flow rate Qe of liquid.
- Pc-Pe -l / 2p.Qe 2 . (1 / Sc 2 -1 / Se 2 ).
- a variation of the inlet pressure shifts the operating range of the venturi, the range of which decreases as the inlet pressure increases.
- the pressure difference between the inlet 11 and the neck 12 of the venturi is adjusted to the pressure drop between the inlet 7 and the outlet 9 specific to the pump in normal operation.
- this pressure drop can be of the order of 1.5 bar and remains less than 2 bar.
- venturi The geometry of the venturi is designed to create a reduced pressure drop, less than 0.5 bar, between inlet and outlet of the venturi.
- the venturi 10 and the pump 2 may form an assembly, and connection means Re and Rs are provided at the inlet and the outlet of the venturi for insertion and connection to two sections of the pipe Te, Ts.
- the derivative flow which passes through the pipe 14 and into the pump 2 allows the operation of the metering pump between the inlet pressure Pe of the venturi 10 and the pressure Pc at the neck.
- the venturi 10 is set so that the ratio R of the flow rate Qe passing through the venturi 10 to the flow rate Qd passing through the metering pump 2 is at least equal to 10 (ten).
- the main flow does not pass into the metering pump 2.
- This allows the use of a small pump 2 for dosing an additive product A in a large flow of main liquid. For example, to ensure a 1% dosage in a flow rate of 20 m / h, with a ratio R equal to ten can be used a standard pump of maximum flow rate of 2.5 m / h, ensuring a dosage of 10%.
- the invention thus makes it possible to treat large flows of main liquid with relatively small dosing pumps.
- the ratio R to ensure small dosages can be at least 100 (one hundred).
- a metering pump 2 allowing a volume ratio between flow rate of additive A injected and flow rate Qd of engine liquid passing through the pump equal to one thousandth (1/1000), combined with a dilution of at least one percent (1%) allows a volume dosage of additive A in the main flow rate Qe less than 10 ⁇ 5 , ie 10 ppm (10 parts per million).
- a pump 2 allowing a volume ratio of 1/1500 (0.07%) between the flow rate of additive A taken and the flow rate Qd corresponds, in practice, substantially to the lowest dosage mechanically obtained with such a pump.
- FIG. 3 illustrates an additional possibility of adjusting the flow rate of the pump by creating an additional pressure drop in the circuit derived from the pump.
- this pressure drop is created by a nozzle 16 installed at the outlet 9 of the pump.
- the nozzle 16 has a calibrated through hole.
- the pump 2, in the absence of any nozzle 16 generally allows a flow rate adjustment between a maximum value M and a minimum value M / p, with p close to three, for example.
- the adjustment range is increased towards the lower values, according to the diameter of the calibrated orifice of the nozzle.
- the nozzle 16 may be adjustable, in particular by means of a needle, which makes it possible to vary the dosage, in particular particularly in the case of a dosing pump which has no adjustment.
- At least two different nozzles, connected in parallel on one or more bypass, can be provided with one or more selection valves, which makes it possible to obtain at least two dosing ranges.
- venturi and metering pump allows a pressure independent operating range. This combination also makes it possible to obtain a substantially constant dosage and not simply an injection that would vary as a function of pressure and flow rate variations.
- INTERNATIONAL DI 1500 operating at 1.1 m 3 per hour, obtaining an additive dosage of 50 ppm in the main flow, then 4 ppm with a different jet 16.
- the invention makes it possible to overcome the pressure limitation of the venturi.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Manufacturing Of Electric Cables (AREA)
- Nozzles (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Paper (AREA)
- Accessories For Mixers (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL05783999T PL1773479T3 (pl) | 2004-07-15 | 2005-06-29 | Urządzenie dozujące, służące do wprowadzania dodatku do strumienia płynu głównego |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0407879A FR2873172B1 (fr) | 2004-07-15 | 2004-07-15 | Dispositif de dosage pour introduire un additif dans un courant de liquide |
| PCT/FR2005/001655 WO2006016032A1 (fr) | 2004-07-15 | 2005-06-29 | Dispositif de dosage pour introduire un additif dans un courant de liquide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1773479A1 true EP1773479A1 (fr) | 2007-04-18 |
| EP1773479B1 EP1773479B1 (fr) | 2008-01-09 |
Family
ID=34948220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05783999A Expired - Lifetime EP1773479B1 (fr) | 2004-07-15 | 2005-06-29 | Dispositif de dosage pour introduire un additif dans un courant de liquide |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20070227961A1 (fr) |
| EP (1) | EP1773479B1 (fr) |
| AT (1) | ATE383196T1 (fr) |
| DE (1) | DE602005004294T2 (fr) |
| DK (1) | DK1773479T3 (fr) |
| ES (1) | ES2300050T3 (fr) |
| FR (1) | FR2873172B1 (fr) |
| PL (1) | PL1773479T3 (fr) |
| PT (1) | PT1773479E (fr) |
| WO (1) | WO2006016032A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3001003A1 (fr) * | 2013-01-17 | 2014-07-18 | Dosatron International | Dispositif de dosage pour introduire un additif liquide dans un courant de liquide principal. |
| WO2025088287A1 (fr) | 2023-10-27 | 2025-05-01 | Dosatron International | Pompe a dosage proportionnel et procede de dosage associe |
| FR3156172A1 (fr) | 2023-12-05 | 2025-06-06 | Dosatron International | Pompe a dosage proportionnel |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ569888A (en) * | 2006-01-30 | 2011-09-30 | William James Duncan | Fluid dispensing apparatus with a valve assembly, an expandable bladder and a cavity |
| WO2008005996A2 (fr) * | 2006-07-05 | 2008-01-10 | Stryker Corporation | système de lavage méDICAL/chirurgical pouvant sélectivement et séquentiellement libérer soit une solution de base, soit une solution comprenant un agent thérapeutique |
| GB0801770D0 (en) | 2008-01-31 | 2008-03-05 | Burnham Douglas P | Fluid delivery device and method |
| MX339610B (es) | 2010-01-06 | 2016-05-31 | Puricore Inc | Metodo para inyectar solucion a una linea de niebla. |
| FR2967218B1 (fr) * | 2010-11-08 | 2016-09-02 | Dosatron International | Doseur proportionnel d'un liquide auxiliaire dans un liquide principal. |
| FR3016302B1 (fr) * | 2014-01-10 | 2016-02-05 | Dosatron International | Melangeur statique pour homogeneiser un melange d'au moins deux liquides et dispositif de dosage equipe d'un tel melangeur |
| FR3100105B1 (fr) | 2019-08-30 | 2023-12-08 | Arkema France | Formulation fumigante pour application en goutte a goutte |
| EP4161281A1 (fr) | 2020-06-07 | 2023-04-12 | Comestaag LLC | Compositions de revêtement protecteur pour denrées périssables et procédés, systèmes, kits et articles revêtus associés |
| WO2025137327A1 (fr) * | 2023-12-22 | 2025-06-26 | Tpe Midstream Llc | Systèmes et procédés à différentiel de pression entraînés par effet venturi |
| WO2025137326A1 (fr) * | 2023-12-22 | 2025-06-26 | Tpe Midstream Llc | Procédés et systèmes à différentiel de pression entraînés par piston |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR740179A (fr) * | 1932-06-21 | 1933-01-23 | éjecteur | |
| US2758877A (en) * | 1954-12-06 | 1956-08-14 | Robert H Gleason | Apparatus for dispensing materials |
| US3330290A (en) * | 1963-10-17 | 1967-07-11 | Jay Q Davis | Water-fertilizer mixing pump |
| GR61644B (en) * | 1975-10-09 | 1978-12-05 | Iplex Plastic Ind Pty Ltd | Delivering measured quantities of liquid into a fluid |
| US4123800A (en) * | 1977-05-18 | 1978-10-31 | Mazzei Angelo L | Mixer-injector |
| GB2130910B (en) * | 1982-09-25 | 1987-03-18 | Gilmat Engineering Limited | Additive supply apparatus for use in a fluid supply line |
| FR2602282B1 (fr) * | 1986-07-31 | 1988-09-23 | Cloup Jean | Perfectionnement aux dispositifs d'injection d'un produit additif dose dans un fluide principal |
| US5234322A (en) * | 1992-12-24 | 1993-08-10 | Chemilizer Products, Inc. | Proportioning pump improvements |
| FR2707350B1 (fr) * | 1993-07-05 | 1995-09-01 | Ody Civile Ste Rech | Dispositif de commande des déplacements alternatifs d'un piston différentiel, et pompe doseuse comportant un tel dispositif. |
| US6192911B1 (en) * | 1999-09-10 | 2001-02-27 | Ronald L. Barnes | Venturi injector with self-adjusting port |
| FR2789445B1 (fr) * | 1999-02-09 | 2001-03-23 | Dosatron Internat Sa | Machine hydraulique differentielle a mouvement alternatif, en particulier moteur hydraulique differentiel |
-
2004
- 2004-07-15 FR FR0407879A patent/FR2873172B1/fr not_active Expired - Fee Related
-
2005
- 2005-06-29 AT AT05783999T patent/ATE383196T1/de not_active IP Right Cessation
- 2005-06-29 EP EP05783999A patent/EP1773479B1/fr not_active Expired - Lifetime
- 2005-06-29 PL PL05783999T patent/PL1773479T3/pl unknown
- 2005-06-29 ES ES05783999T patent/ES2300050T3/es not_active Expired - Lifetime
- 2005-06-29 PT PT05783999T patent/PT1773479E/pt unknown
- 2005-06-29 DE DE602005004294T patent/DE602005004294T2/de not_active Expired - Lifetime
- 2005-06-29 US US11/571,920 patent/US20070227961A1/en not_active Abandoned
- 2005-06-29 DK DK05783999T patent/DK1773479T3/da active
- 2005-06-29 WO PCT/FR2005/001655 patent/WO2006016032A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006016032A1 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3001003A1 (fr) * | 2013-01-17 | 2014-07-18 | Dosatron International | Dispositif de dosage pour introduire un additif liquide dans un courant de liquide principal. |
| WO2014111770A1 (fr) | 2013-01-17 | 2014-07-24 | Dosatron International | Dispositif de dosage pour introduire un additif liquide dans un courant de liquide principal |
| JP2016509649A (ja) * | 2013-01-17 | 2016-03-31 | ドサトロン アンテルナショナル | 基本液体の流れに液体添加物を投入するための計量デバイス |
| EA027193B1 (ru) * | 2013-01-17 | 2017-06-30 | Дозатрон Энтернасьональ | Устройство дозировки для введения жидкой добавки в главный поток жидкости |
| US10197071B2 (en) | 2013-01-17 | 2019-02-05 | Dosatron International | Controllable constriction device for the throat of a venturi channel for introducing a liquid additive into a stream of main liquid |
| WO2025088287A1 (fr) | 2023-10-27 | 2025-05-01 | Dosatron International | Pompe a dosage proportionnel et procede de dosage associe |
| FR3154771A1 (fr) | 2023-10-27 | 2025-05-02 | Dosatron International | Pompe a dosage proportionnel et procede de dosage associe |
| FR3156172A1 (fr) | 2023-12-05 | 2025-06-06 | Dosatron International | Pompe a dosage proportionnel |
| WO2025120279A1 (fr) | 2023-12-05 | 2025-06-12 | Dosatron International | Pompe a dosage proportionnel |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1773479B1 (fr) | 2008-01-09 |
| PL1773479T3 (pl) | 2008-07-31 |
| PT1773479E (pt) | 2008-04-07 |
| DE602005004294D1 (de) | 2008-02-21 |
| DE602005004294T2 (de) | 2009-01-02 |
| FR2873172B1 (fr) | 2007-11-02 |
| DK1773479T3 (da) | 2008-05-26 |
| ES2300050T3 (es) | 2008-06-01 |
| FR2873172A1 (fr) | 2006-01-20 |
| ATE383196T1 (de) | 2008-01-15 |
| WO2006016032A1 (fr) | 2006-02-16 |
| US20070227961A1 (en) | 2007-10-04 |
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