WO2012152609A1 - Reciprocating pump assembly for liquids - Google Patents
Reciprocating pump assembly for liquids Download PDFInfo
- Publication number
- WO2012152609A1 WO2012152609A1 PCT/EP2012/057903 EP2012057903W WO2012152609A1 WO 2012152609 A1 WO2012152609 A1 WO 2012152609A1 EP 2012057903 W EP2012057903 W EP 2012057903W WO 2012152609 A1 WO2012152609 A1 WO 2012152609A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- pump assembly
- permanent magnet
- reciprocating pump
- assembly
- Prior art date
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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
- A47J31/402—Liquid dosing devices
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
-
- 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
- F04B9/14—Pumps characterised by muscle-power operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
Definitions
- the present invention relates to reciprocating pumps for dispensing a liquid. More particularly, the invention relates to a reciprocating pump assembly comprising a pump housing providing an interior compartment.
- the pump housing is provided with an inlet for providing a liquid to be dispensed and an outlet for dispensing the liquid.
- the assembly further comprises a piston movably mounted within the interior compartment of the pump housing.
- the piston comprises ferromagnetic material.
- the assembly further comprises a magnetic actuator for generating a linearly moving magnetic field acting on the piston.
- the dispensing of the concentrate liquid is done by a pump.
- the pump is part of the dispenser and a concentrate liquid bag or pouch is connected to the pump on one side and the mixing water on the other side.
- the pumps are often designed to be disposable or recyclable.
- US2006/0151544 discloses a disposable concentrate pump where a small pump body is part of a liquid collapsible bag reservoir, and an actuating solenoid is mounted in the dispenser.
- GB 2103296 discloses a pump having a pumping chamber defined by a flexible or resilient cylindrical chamber wall, and non-return inlet and outlet valves. Pumping is effected by aerial deformation of the pumping chamber achieved by electro- magnetic actuating means. The liquid to be dispensed is stored in a collapsible container.
- EP1018601 discloses a reciprocating pump.
- a piston assembly has a dispensing end and an opposed end and is moveably mounted for reciprocating movement in opposed linear directions.
- a linear magnetic drive generates a linearly moving magnetic field for moving the piston assembly in opposed linear directions through a swept volume in each of the opposed linear directions.
- An energy storage and release media communicates with a reservoir chamber for storing energy as a result of movement of the piston assembly in a direction away from the dispensing end of the interior compartment and for releasing the stored energy as the piston assembly is moved in a direction toward the dispensing end of the interior compartment.
- the pumped flow rate is high and a powerful drive is therefore needed. All pump devices mentioned above are detachable from their actuating
- the known reciprocating pumping mechanisms are all driven by an electromagnetic actuating mechanism.
- Such type of driving requires a power source such as a battery or connection to the power net to enable the magnet to generate a proper magnetic field.
- Electromagnetic driving mechanisms of this type are complex and expensive, and occupy a lot of space. Further, for small, not water mains connected and/or non- powered appliances such as water pitchers or table top water carbonators, a driving mechanism without the need for a separate power source is preferred. Thus, there is a need for a pump with an improved actuating mechanism.
- An object of the present invention is to provide a reciprocating pump overcoming at least some of the drawbacks mentioned above.
- this object is achieved by a
- the assembly further comprises a piston being arranged to perform a linear movement within the interior compartment of the pump housing.
- the piston comprises ferromagnetic material.
- the assembly further comprises a magnetic actuator for generating a linearly moving magnetic field acting on the piston.
- the magnetic actuator comprises a permanent magnet arranged to be moved linearly substantially parallel to the linear movement of the piston, whereby the linearly moving magnetic field is generated, and the piston is moved in the pump housing between a resting position and an actuated position under influence of the generated linearly moving magnetic field.
- the present invention provides a reciprocating pump assembly with a robust and simple actuating mechanism with low risk for parts malfunctioning. Further, a compact and robust assembly that will fit into small and cheap applications is provided. Due to the use of a permanent magnet, there is no need for any external power supply. The robust and simple construction limits the risk for malfunctioning. Due to the use of magnetic forces in the actuator, there are no mechanical connection between the actuator and the piston, and any individual part of the assembly may therefore be replaced easily. As a result, the above mentioned object is achieved.
- the reciprocating pump assembly further comprises a first biasing member arranged to apply a force on the permanent magnet whereby the permanent magnet is retracted from the actuated position to the resting position.
- the reciprocating pump assembly may comprise a second biasing member arranged to apply a force on the piston whereby the piston is retracted from the actuated position to the resting position.
- the second biasing member provides a faster return of the piston, thereby still further improving the movements of the piston.
- the permanent magnet and the second biasing member arranged to interact whereby the permanent magnet is moved in opposed linear directions in relation to the movements of the piston. The forces from respective biasing member will then be used to fully contribute to achieve quick and fast movements of the piston.
- the force applied by the second biasing member on the piston overcoming the magnetic force acting on the piston, when the piston is positioned in the resting position.
- the piston will be safely positioned in the resting position when the pump is not in use. Further, the risk of unwanted leakage is limited.
- the assembly comprises a check-valve, whereby liquid is enabled to flow into the interior compartment, and whereby liquid is blocked from flowing back. The liquid provided will thus be fresh and uncontaminated.
- the outlet of the pump housing provided with a nozzle.
- the movements of the permanent magnet achieved by movements by hand of a user.
- a permanent magnet made from Neodymium (NdFeB) or equivalent may be chosen.
- a household appliance comprising such a reciprocating pump assembly is provided. Since there is no need for such pump assembly to be connected to a power net, such a solution will provide easy assembling and construction of the appliance, as well as reliable functionality. Further, small appliances like water pitchers or table top carbonators may be used without any external power source or net.
- Fig. 1 illustrates a reciprocating pump in accordance with prior art.
- Fig. 2 illustrates a reciprocating pump in accordance with the present invention.
- Fig. 3 illustrates a reciprocating pump in accordance with the present invention shown in a resting position.
- Fig. 4 illustrates a reciprocating pump in accordance with the present invention shown in an actuated position.
- Fig. 1 shows a pump system in accordance with prior art.
- a pump 15 is connected to a pouch 1 1 or the like comprising a liquid to be dispensed.
- the pump 15 performs a reciprocating movement.
- An electro magnet 14 is arranged to generate a moving magnetic field acting on the pump 15, whereby the magnetic force from the field causes the pump 15 to move in the same manner.
- the electro magnet 14 is controlled by a Printed Circuit Board (PCB) 12 connected to an external power source 13, like a battery package or a power net.
- PCB Printed Circuit Board
- FIG. 2 illustrates an embodiment of a reciprocating pump assembly 1 in accordance with the present invention.
- the pump assembly 1 may be connected to a pouch 1 1 comprising a consumable liquid to be dispensed.
- the pump assembly 1 comprises a piston 5 made of ferromagnetic material arranged inside a pump housing 2.
- the piston 5 performs a reciprocating movement.
- a permanent magnet 6 is arranged on the outside of the pump housing 2. The permanent magnet 6 is moved in a reciprocating manner whereby the magnetic force from the magnet 6 causes the piston 5 to move in a reciprocating manner.
- a positive displacement of liquid from the pouch 1 1 to the outside is obtained.
- Fig. 3 illustrates a further embodiment of a reciprocating pump assembly 1 in accordance with the present invention.
- the pump assembly 1 may further comprise first and second biasing means 7, 8, in the figure shown as springs, but may be any type of biasing member.
- the springs are acting on the piston 5 and on the permanent magnet 6, respectively.
- the permanent magnet 6 is moved in a counter direction in relation to the piston 5 whereby the forces of the biasing members 7, 8 are utilized to achieve a faster reciprocating movement, obtaining a higher velocity of the out flowing liquid and a higher pressure at the nozzle 10.
- a permanent magnet 6 with a first biasing member 7, a firmer and quicker movement with higher accuracy of the permanent magnet and thereby of the magnetic field acting on the piston 5 is obtained.
- the second biasing member 8 may advantageously be dimensioned to achieve that the magnetic force acting on the piston 5 overcomes the force applied by the second biasing member 8 on the piston when the permanent magnet 6 starts to move from the resting position in a linear direction towards the piston. The movement of the piston 5 will therefore start shortly after movements of the permanent magnet resulting in a quick and fast movement of the piston.
- the biasing member 7 may be dimensioned to apply a force strong enough to ensure that the magnet 6 is kept from moving towards the piston 5 when the assembly is in the resting position as shown in Fig. 3.
- a check valve 9 may be comprised, allowing the liquid to flow only in one direction, from the pouch 1 1 to a pump nozzle 10 through which the liquid is dispensed.
- the pump assembly 1 works as follows. When the pump is in a resting 10 position as shown in Fig. 3, the force from the spring 8 acting on the piston 5 is stronger than the force generated by the magnetic field of the
- the piston 5 and the permanent magnet 6 are shown in their actuated positions, with respective spring contracted, in Fig. 4.
- a permanent magnet made from Neodymium (NdFeB) or equivalent may be chosen.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137032089A KR20140034806A (en) | 2011-05-06 | 2012-04-30 | Reciprocating pump assembly for liquids |
RU2013153403/06A RU2013153403A (en) | 2011-05-06 | 2012-04-30 | LIVING RETURN PUMP ASSEMBLY FOR LIQUIDS |
US14/115,439 US9709047B2 (en) | 2011-05-06 | 2012-04-30 | Reciprocating pump assembly for liquids |
CN201280030893.3A CN103620217B (en) | 2011-05-06 | 2012-04-30 | For the reciprocating pump assembly of liquid |
BR112013028508A BR112013028508A2 (en) | 2011-05-06 | 2012-04-30 | liquid distribution piston pump set, household appliance |
MX2013012930A MX2013012930A (en) | 2011-05-06 | 2012-04-30 | Reciprocating pump assembly for liquids. |
EP12721213.2A EP2712406B1 (en) | 2011-05-06 | 2012-04-30 | Reciprocating pump assembly for liquids |
AU2012252651A AU2012252651B2 (en) | 2011-05-06 | 2012-04-30 | Reciprocating pump assembly for liquids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1100356-3 | 2011-05-06 | ||
SE1100356 | 2011-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012152609A1 true WO2012152609A1 (en) | 2012-11-15 |
Family
ID=46085562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/057903 WO2012152609A1 (en) | 2011-05-06 | 2012-04-30 | Reciprocating pump assembly for liquids |
Country Status (9)
Country | Link |
---|---|
US (1) | US9709047B2 (en) |
EP (1) | EP2712406B1 (en) |
KR (1) | KR20140034806A (en) |
CN (1) | CN103620217B (en) |
AU (1) | AU2012252651B2 (en) |
BR (1) | BR112013028508A2 (en) |
MX (1) | MX2013012930A (en) |
RU (1) | RU2013153403A (en) |
WO (1) | WO2012152609A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700025159A1 (en) * | 2017-03-07 | 2018-09-07 | Elbi Int Spa | Liquid dispensing device, in particular for dispensing washing agents in a washing machine. |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107773102A (en) * | 2016-08-29 | 2018-03-09 | *** | Magnet-type and sprocket wheel intelligence knife rest |
US10379082B2 (en) * | 2016-12-15 | 2019-08-13 | Caterpillar Inc. | System for monitoring machine fluids by measuring fluctuations in a magnetic field |
KR102177140B1 (en) * | 2019-01-18 | 2020-11-10 | 효성중공업 주식회사 | Actuator |
US11499536B2 (en) | 2019-01-25 | 2022-11-15 | Rensselaer Polytechnic Institute | Cylindrical magnetic coupling with alternating polarity |
EP3730786B1 (en) * | 2019-04-19 | 2022-12-28 | White Knight Fluid Handling Inc. | Reciprocating fluid pumps including magnets, and related assemblies, systems, and methods |
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US4207773A (en) * | 1976-11-04 | 1980-06-17 | Stahovic Robert F | Magnetic piston machine |
EP0025562A1 (en) * | 1979-09-13 | 1981-03-25 | Franz Klaus Union Armaturen Pumpen GmbH & Co. | Piston-displacement pump, in particular metering pump |
GB2103296A (en) | 1981-03-26 | 1983-02-16 | Dagma Gmbh & Co | Method of and device for dispensing viscous concentrates |
DE3248229C1 (en) * | 1982-12-27 | 1984-06-14 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Working machine for conveying gases and/or liquids |
EP1018601A2 (en) | 1999-01-05 | 2000-07-12 | Air Products And Chemicals, Inc. | Reciprocating pumps with linear motor driver |
WO2000079224A1 (en) * | 1999-06-21 | 2000-12-28 | Sara Lee/De N.V. | Dosing device adapted for dispensing a concentrate from a holder in a metered manner |
US6501357B2 (en) * | 2000-03-16 | 2002-12-31 | Quizix, Inc. | Permanent magnet actuator mechanism |
US20030044285A1 (en) * | 2001-08-28 | 2003-03-06 | Yuqing Ding | Magnetic pumping system |
EP1420164A2 (en) * | 2002-11-13 | 2004-05-19 | Nuovo Pignone Holding S.P.A. | Simplified piston slidable in a cylinder |
US20060144244A1 (en) * | 2004-02-13 | 2006-07-06 | Intelligent Coffee Company, Llc | Liquid concentrate/extract beverage dispenser with replaceable concentrate/extract cartridge |
US20060151544A1 (en) | 2005-01-07 | 2006-07-13 | Greenwald Technologies Llc | Disposable integrated bag and pump |
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2012
- 2012-04-30 CN CN201280030893.3A patent/CN103620217B/en not_active Expired - Fee Related
- 2012-04-30 WO PCT/EP2012/057903 patent/WO2012152609A1/en active Application Filing
- 2012-04-30 MX MX2013012930A patent/MX2013012930A/en not_active Application Discontinuation
- 2012-04-30 US US14/115,439 patent/US9709047B2/en active Active
- 2012-04-30 BR BR112013028508A patent/BR112013028508A2/en not_active Application Discontinuation
- 2012-04-30 EP EP12721213.2A patent/EP2712406B1/en not_active Not-in-force
- 2012-04-30 RU RU2013153403/06A patent/RU2013153403A/en not_active Application Discontinuation
- 2012-04-30 AU AU2012252651A patent/AU2012252651B2/en not_active Ceased
- 2012-04-30 KR KR1020137032089A patent/KR20140034806A/en not_active Application Discontinuation
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4207773A (en) * | 1976-11-04 | 1980-06-17 | Stahovic Robert F | Magnetic piston machine |
EP0025562A1 (en) * | 1979-09-13 | 1981-03-25 | Franz Klaus Union Armaturen Pumpen GmbH & Co. | Piston-displacement pump, in particular metering pump |
GB2103296A (en) | 1981-03-26 | 1983-02-16 | Dagma Gmbh & Co | Method of and device for dispensing viscous concentrates |
DE3248229C1 (en) * | 1982-12-27 | 1984-06-14 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Working machine for conveying gases and/or liquids |
EP1018601A2 (en) | 1999-01-05 | 2000-07-12 | Air Products And Chemicals, Inc. | Reciprocating pumps with linear motor driver |
WO2000079224A1 (en) * | 1999-06-21 | 2000-12-28 | Sara Lee/De N.V. | Dosing device adapted for dispensing a concentrate from a holder in a metered manner |
US6501357B2 (en) * | 2000-03-16 | 2002-12-31 | Quizix, Inc. | Permanent magnet actuator mechanism |
US20030044285A1 (en) * | 2001-08-28 | 2003-03-06 | Yuqing Ding | Magnetic pumping system |
EP1420164A2 (en) * | 2002-11-13 | 2004-05-19 | Nuovo Pignone Holding S.P.A. | Simplified piston slidable in a cylinder |
US20060144244A1 (en) * | 2004-02-13 | 2006-07-06 | Intelligent Coffee Company, Llc | Liquid concentrate/extract beverage dispenser with replaceable concentrate/extract cartridge |
US20060151544A1 (en) | 2005-01-07 | 2006-07-13 | Greenwald Technologies Llc | Disposable integrated bag and pump |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700025159A1 (en) * | 2017-03-07 | 2018-09-07 | Elbi Int Spa | Liquid dispensing device, in particular for dispensing washing agents in a washing machine. |
WO2018163039A1 (en) * | 2017-03-07 | 2018-09-13 | Elbi International S.P.A. | A liquid dispensing device, particularly for dispensing washing agents in a washing machine |
US11047083B2 (en) | 2017-03-07 | 2021-06-29 | Elbi International S.P.A. | Liquid dispensing device, particularly for dispensing washing agents in a washing machine |
Also Published As
Publication number | Publication date |
---|---|
RU2013153403A (en) | 2015-06-10 |
CN103620217B (en) | 2016-05-25 |
AU2012252651B2 (en) | 2016-11-03 |
EP2712406B1 (en) | 2019-01-02 |
US9709047B2 (en) | 2017-07-18 |
US20140147305A1 (en) | 2014-05-29 |
MX2013012930A (en) | 2014-05-28 |
AU2012252651A1 (en) | 2013-11-21 |
BR112013028508A2 (en) | 2017-12-05 |
KR20140034806A (en) | 2014-03-20 |
EP2712406A1 (en) | 2014-04-02 |
CN103620217A (en) | 2014-03-05 |
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