EP2273121A2 - Behälteranordnung für eine volumetrische Pumpe - Google Patents
Behälteranordnung für eine volumetrische Pumpe Download PDFInfo
- Publication number
- EP2273121A2 EP2273121A2 EP10161265A EP10161265A EP2273121A2 EP 2273121 A2 EP2273121 A2 EP 2273121A2 EP 10161265 A EP10161265 A EP 10161265A EP 10161265 A EP10161265 A EP 10161265A EP 2273121 A2 EP2273121 A2 EP 2273121A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- container
- gear
- magnet
- container assembly
- 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
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 5
- 238000007710 freezing Methods 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/086—Carter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0069—Magnetic couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the present finding refers to a container assembly for a volumetric pump, in particular but not exclusively an internal or external gears volumetric pump useable for moving fluids in the automotive industry.
- volumetric pump is a particular type of pump which exploits volume variation in a chamber to cause suction or pressure on an incompressible fluid.
- volumetric pumps include rotary pumps of the gear type, wherein the volume variation of the operational chamber is obtained through the rotation of elements, typically two gear wheels which mesh with respect to each other, capable of delimiting variable volume rotating chambers.
- Gear pumps are widely used in the field of lubrication and generally in all applications wherein the liquid to be transferred is particularly viscous.
- the so-called internal gear pumps are made with the two gears arranged one inside the other but on staggered axis.
- a partition assembly separates the two gears by means of a crescent-shaped partition plate.
- Magnetic drive Transmission of power in gear pumps, usually generated by an electric motor, may occur through the so-called “magnetic drive”.
- This transmission system provides for the presence of two rings or coaxial magnetic cores, one of which is mounted on the drive shaft and the other on the rotor shaft, i.e. one of the gears of the pump.
- the magnetic fields of the core mounted on the drive shaft approach those having an identical polarity of the core mounted on the shaft of the rotor and, due to magnetic repulsion, they make it rotate.
- the most common internal or external gear pumps and the respective systems for transmitting power are enclosed by sealed containers made of metal material, typically stainless steel.
- the pumping units are required to ensure that the pumped liquid and the vapours thereof do not pollute the surrounding environment in any manner whatsoever.
- contact between the pumped liquid and the environment must be prevented to avoid triggering chemical and physical reactions such to irreversibly alter the liquid itself within the process.
- the volume of the liquid to be pumped may increase due to the freezing of the liquid itself. Failure, by the sealed pump container, to compensate such volume increases may thus damage the internal mechanisms of the pump itself.
- an object of the present finding is that of providing a container assembly for a volumetric pump, in particular an internal or external gear pump, that is capable of compensating the volume increase due to the freezing of the liquids in the pump itself during the periods of inactivity. Then another object is that of providing a container assembly for a volumetric pump capable of obtaining a solid and stable coupling with the body of the pump, making disassembly thereof impossible without irreversibly damaging at least one component of the pump itself.
- Another object of the finding is that of realizing a container assembly for a volumetric pump that does not require using screws or other fixing systems, in such a manner to be mounted on site in a simple and quick manner.
- the container assembly 10 is configured to be mounted on a volumetric pump of the gear type, internal or external, schematically illustrated in figure 4 .
- the pump comprises, in a per se known manner, a first gear 12, keyed on a first shaft 16, and a second gear 14, keyed on a second shaft 18.
- the first shaft 16 and the second shaft 18 are on different axes but parallel to each other in such a manner that the first gear 12 may be engaged with the second gear 14. Therefore, during the rotation of the first gear 12 with respect to the second gear 14, disjoining of the teeth of the two gears 12 and 14 causes the suctioning of the liquid into the pump, while rejoining thereof causes the discharge of the liquid itself.
- the container assembly 10 comprises a first container 26 made of deformable plastic material, capable of at least partly closing the internal 20 and external 22 magnetic cores of the magnet.
- the container 26 of the magnet is folded on the rear body of the pump by means of the sheet turning method, or through any other method suitable for deforming plastic, in such a manner to make coupling thereof solid and disassembly impossible without irreversibly damaging at least one component of the pump.
- At least one seal element 28 for example an O-ring, capable of guaranteeing perfect seal between the internal of the pump and the surrounding environment and preventing pollution caused by possible leakage of the pumped liquid and vapours thereof.
- the membrane 30 may be at least one membrane 30 ( figure 3 ), made using spongy or soft material, easy to compress, and suitable to compensate the volume increase due to possible freezing of the liquid in the pump during the inoperative period.
- the membrane 30 is firmly fixed coupled between the rear body of the pump and the container 26 in such a manner that, once the various parts are assembled, movement thereof in the pump itself is prevented.
- the membrane 30 may also be installed at the closed end part of the container 26.
- the container assembly 10 may also comprise a second container 32 made of deformable plastic material, fixed onto the first container 26 of the magnet and onto the body of the pump by means of any plastic deformation method.
- the second container 32 is made in form of a pipe or sleeve plastically deformed at one of the ends thereof ( figure 4 ) in such a manner that, due to the particular geometry and the plastic deformation imparted thereto, it is capable of holding all the components of the pump assembled together without requiring using screws or other fixing systems. Due to its elasticity, the second container 32 - made of plastic material - also allows compensating possible volume increases due to the freezing of the liquid contained in the pump during the period of inactivity, recovering the initial configuration upon defreezing without damaging the components of the pump itself in any manner whatsoever.
- the second container 32 secures the coupling of the various parts of the pump and makes disassembly thereof impossible without irreversibly damaging at least one component.
- the container assembly for a volumetric pump of the present finding is however susceptible to various modifications and variants, all falling within the same innovative concept; Furthermore, all details may be replaced by technically equivalent elements. In practice, the materials used, as well as shape and dimensions, may vary according to technical requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000188U ITMI20090188U1 (it) | 2009-06-08 | 2009-06-08 | Assieme di contenimento per una pompa volumetrica |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2273121A2 true EP2273121A2 (de) | 2011-01-12 |
EP2273121A3 EP2273121A3 (de) | 2014-07-16 |
EP2273121B1 EP2273121B1 (de) | 2016-04-06 |
Family
ID=42536366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10161265.3A Active EP2273121B1 (de) | 2009-06-08 | 2010-04-28 | Behälteranordnung für eine volumetrische Pumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2273121B1 (de) |
IT (1) | ITMI20090188U1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUB20153739A1 (it) * | 2015-09-18 | 2017-03-18 | Fluid O Tech Srl | Pompa provvista di un sistema di compensazione della pressione interna. |
EP3184734A1 (de) | 2015-12-24 | 2017-06-28 | Fluid-O-Tech Group S.R.L | Behälteranordnung für eine pumpe |
WO2017144499A1 (de) * | 2016-02-22 | 2017-08-31 | Gkn Sinter Metals Engineering Gmbh | Pumpenanordnung mit axialfluss-elektroantrieb |
US20170254329A1 (en) * | 2016-03-02 | 2017-09-07 | Fluid-O-Tech S.R.L. | Elastic containment assembly for a pump |
WO2017220475A1 (fr) | 2016-06-20 | 2017-12-28 | Sonceboz Automotive Sa | Pompe a fluide motorisée a réchauffement amélioré |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20061372A1 (it) * | 2006-07-14 | 2008-01-15 | Renato Colombo | Dispositivo di connessione rapida per attuare il collegamento tra un tubo ed un componente in particolare un collettore o una valvola di intercettazione di impianti di distribuzione di liquidi o di gas |
US8186055B2 (en) * | 2007-08-30 | 2012-05-29 | Micropump, Inc. | Methods for manufacturing pump-heads having a desired internal clearance for rotary member |
-
2009
- 2009-06-08 IT IT000188U patent/ITMI20090188U1/it unknown
-
2010
- 2010-04-28 EP EP10161265.3A patent/EP2273121B1/de active Active
Non-Patent Citations (1)
Title |
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None |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10113547B2 (en) | 2015-09-18 | 2018-10-30 | Fluid-O-Tech S.R.L. | Pump provided with a system for compensating the internal pressure |
EP3144531A1 (de) * | 2015-09-18 | 2017-03-22 | Fluid-O-Tech S.r.l. | Pumpe mit system zur kompensation des innendrucks |
ITUB20153739A1 (it) * | 2015-09-18 | 2017-03-18 | Fluid O Tech Srl | Pompa provvista di un sistema di compensazione della pressione interna. |
EP3184734A1 (de) | 2015-12-24 | 2017-06-28 | Fluid-O-Tech Group S.R.L | Behälteranordnung für eine pumpe |
US10890179B2 (en) | 2015-12-24 | 2021-01-12 | Fluid-O-Tech Group S.R.L. | Container assembly for a pump |
EP3617448A1 (de) * | 2016-02-22 | 2020-03-04 | GKN Sinter Metals Engineering GmbH | Pumpenanordnung |
CN108884713A (zh) * | 2016-02-22 | 2018-11-23 | 吉凯恩粉末冶金工程有限公司 | 带有轴向通量电驱动器的泵组件 |
WO2017144499A1 (de) * | 2016-02-22 | 2017-08-31 | Gkn Sinter Metals Engineering Gmbh | Pumpenanordnung mit axialfluss-elektroantrieb |
CN108884713B (zh) * | 2016-02-22 | 2021-06-22 | 吉凯恩粉末冶金工程有限公司 | 带有轴向通量电驱动器的泵组件 |
EP3225846A2 (de) | 2016-03-02 | 2017-10-04 | Fluid-O-Tech S.r.l. | Elastischen pumpengehäuse |
US20170254329A1 (en) * | 2016-03-02 | 2017-09-07 | Fluid-O-Tech S.R.L. | Elastic containment assembly for a pump |
US10724519B2 (en) * | 2016-03-02 | 2020-07-28 | Fluid-O-Tech S.R.L. | Elastic containment assembly for a pump |
WO2017220475A1 (fr) | 2016-06-20 | 2017-12-28 | Sonceboz Automotive Sa | Pompe a fluide motorisée a réchauffement amélioré |
Also Published As
Publication number | Publication date |
---|---|
EP2273121B1 (de) | 2016-04-06 |
EP2273121A3 (de) | 2014-07-16 |
ITMI20090188U1 (it) | 2010-12-09 |
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