EP3390819A1 - Pumpe mit verformbarem förderelement - Google Patents
Pumpe mit verformbarem förderelementInfo
- Publication number
- EP3390819A1 EP3390819A1 EP16795091.4A EP16795091A EP3390819A1 EP 3390819 A1 EP3390819 A1 EP 3390819A1 EP 16795091 A EP16795091 A EP 16795091A EP 3390819 A1 EP3390819 A1 EP 3390819A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conveying element
- drive
- medium
- pump
- pump according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005086 pumping Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000008859 change Effects 0.000 claims abstract description 23
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 230000002265 prevention Effects 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 7
- 239000007800 oxidant agent Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000012781 shape memory material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000010201 Exanthema Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
-
- 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
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/24—Pumping by heat expansion of pumped fluid
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/10—Pumps having fluid drive
Definitions
- the invention relates to a pump with a conveying element for the inflow and outflow of a medium, wherein the conveying element is in communication with a drive, and a method for conveying a medium.
- Pumps are working machines used to convey media.
- liquids include, among others, liquid-solid mixtures, pastes or liquids with a gas content to these media.
- the medium is set in motion via a drive.
- the invention relates to a positive displacement pump.
- a delivery element sucks the medium in a first phase of a cycle and pushes the medium out in a next phase.
- the conveying element is designed as a membrane, which are in communication with a drive.
- the drive is often a piston used, which performs oscillating movements. The movement of the piston causes a rash of the membrane, thereby causing suction and pressure pulses.
- EP 1 813 803 A1 describes a fuel pump for an internal combustion engine.
- the fuel pump includes a pumping chamber having an inlet valve and an outlet valve.
- the pumping chamber is supported on one side by a flexible membrane. shut up.
- An actuator acts on the diaphragm to vary the volume of the pumping chamber cyclically.
- the actuator includes a shape memory material coupled to the flexible membrane.
- the US 2004/01 15067A1 shows a simply constructed, very precise piston pump.
- DE 1 0 2005 040 344 A1 shows a modular piston pump with a drive based on a shape memory alloy.
- DE 1 0 2007 042 791 A1 shows a pump whose drive unit comprises a shape memory alloy.
- JP 60053679 A shows a piston pump whose drive is based on a shape memory alloy.
- EP 1 813 803 A1 shows a fuel pump which is driven by means of a shape memory device.
- No. 7,135,076 B2 shows a combination of a shape memory alloy and a surrounding catalyst which is able to convert energy carriers from a surrounding medium.
- US 8,096,119 B2 shows an artificial muscle based on a shape memory alloy.
- the object of the invention is to provide a pump that can operate largely independently of conventional energy sources. Furthermore, a method for conveying a medium is to be specified, which can be operated without a complex infrastructure or without a long supply line.
- the pump should also be characterized by a long service life, a reliable mode of operation and the lowest possible purchase or operating costs. This object is achieved by a pump having the features of claim 1 and a method having the features of claim 13. Preferred variants can be found in the subclaims, the description and the drawing.
- the drive has a material for performing a thermal change of its geometric dimension.
- the material expands or contracts. Due to the thermal expansion or heat shrinkage changes the length, the surface area or the volume of the body, which is made of this material.
- the material is connected to the conveying element of the pump in such a way that the changes in the geometric dimensions of the material cause a change in shape of the conveying element.
- This change in shape of the conveying element leads to the promotion of the medium.
- the material is a shape memory alloy.
- Shape memory alloys (abbreviation: SMA) are special metals that can exist in two different crystal structures. They are often referred to as memory metals. This is due to the phenomenon that they seem to be pronounced of an earlier shaping despite subsequent severe deformation.
- a nickel-titanium alloy is used as the material. These are characterized by particularly large effects combined with high strength. When the temperature changes, a phase transition takes place.
- the drive also has a material for oxidation.
- this is a catalytic material, wherein in particular a platinum-containing material is suitable.
- nanoparticles of platinum are used. These will be at a special preferred embodiment of the invention applied to tiny tubes made of carbon.
- the material comes into contact with at least one substance which is reacted with oxygen in a catalytic reaction.
- the substances may be, for example, hydrogen or organic compounds such as methanol.
- organic compounds which are dissolved in the water are used as substances. These may be, for example, sugars or carbohydrates such as starch. Polluted waters, in particular, often have a large number of organic substances which are suitable as substances for oxidative conversion.
- the exothermic oxidative reaction releases heat which is transferred to the material to effect a thermal change.
- the geometric dimensions change and there is a change in length, area or volume which leads to a change in shape of the conveying element.
- the material responsible for the oxidation is arranged around the material, which performs a thermal change of the geometric dimension.
- the material for thermal modification may be rod-like, preferably in the form of a cylinder.
- the catalyst material is then arranged around this rod-like body, this preferably forming a hollow-cylindrical body. The exothermic oxidation reaction takes place on the outer annular catalyst shell and transfers the heat to the inner core, which causes a change in length due to the temperature rise.
- the conveying element consists at least partially of an elastic material.
- a rubber-elastic material is suitable.
- the conveying element may consist of a silicone rubber or a silicone elastomer.
- the conveyor element is elastic deformable table and can lean against the housing walls of the pump if necessary.
- the conveying element has a crescent-shaped cross section.
- the conveying element is preferably designed as a bell-shaped body.
- the conveying element is in operative connection with the drive via a connecting element.
- the connecting element may be a wire which is attached to the conveying element and, in the event of a contraction of a material of the drive, deforms the conveying element in one direction, so that medium is conveyed.
- the connecting element is at least partially arranged in the conveying element.
- the pump has a return element, which deforms the conveying element after a deformation of the conveying element by the drive.
- a first phase there is a thermal change of a material of the drive, which leads to a change in shape of the conveying element, which is sucked by this change in shape, for example, medium.
- the return element ensures that the conveyor element returns to its original position. By this shape change back to the initial state, for example, medium is pushed out.
- the restoring element can be, for example, a spring element which acts as a return spring, in particular a leaf spring element.
- the return element is integrated in the conveying element.
- a return spring may be embedded in the conveyor element made of an elastic mass.
- the drive is fixed in place at one end. At the other end of the drive is connected via a connecting element with the conveying element in connection. As a result of the contraction and expansion processes in the drive, this results in a deformation movement of the conveying element, which leads to a delivery of the medium.
- the space has an inlet through which the educts flow to the catalyst material for the oxidation.
- the material undergoes catalytic oxidation. This can be a total oxidation with the products water or carbon dioxide or a partial oxidation in which carbon monoxide or organic products can also be formed.
- a stream of the resulting products and the unreacted educts leaves the room through an outlet.
- FIG. 1 shows a schematic representation of the invention
- FIG. 2 a shows an arrangement of a pump in a pipe in a ground state
- FIG. 2b shows an arrangement of a pump in a pipe during suction
- Figure 2c shows an arrangement of a pump in a pipe during ejection.
- FIG. 1 shows a pump for delivering a medium, which flows into the pump according to the left-hand block arrow and flows out of the pump according to the right-hand block arrow.
- the pump comprises a conveying element 1.
- the conveying element 1 is designed in the embodiment as a bell-shaped silicone shell and has a crescent-shaped cross-section.
- the conveying element 1 is connected to a drive via a connecting element 3.
- the connecting element 3 is a wire which is embedded in the conveying element 1 and is connected to the drive by means of deflecting rollers 4.
- the drive comprises a first material 5, which is designed as an inner core in the form of a cylinder and a second material 6 as an outer shell, which surrounds the first material 5 in an annular manner.
- the rod-like core of the drive 2 is a material 5 for performing a thermal change of the geometric dimensions.
- a shape memory material is used, which is designed as a nickel-titanium alloy.
- the annular outer shell of the drive 2 is made of a material 6, which serves as a catalyst for an oxidation reaction.
- a platinum-containing material is used. These are carbon nanotubes coated with platinum particles.
- a mixture in a space 8 which has an oxidizing agent and a substance to be oxidized.
- the oxidizing agent is oxygen or air and the oxidizing agent is hydrogen.
- the space 8 is separated from a housing 9 by the space 10 in which the medium to be conveyed is located.
- the oxidizing agent is reacted with the oxidizing agent on the catalytic material 6.
- hydrogen and oxygen react to form water.
- the mixture with the reaction products and the unreacted starting materials leaves the space 8 through an outlet 14 in the direction of the lower block arrow.
- the material 5 heats up and changes its geometric dimensions. For example, there may be a length contraction, so that the rod-like drive 2 contracts.
- the ends of the conveying element 1 are sealingly against the walls 1 1 of a housing of the pump.
- a first backflow prevention element 13 opens.
- the oxidation reaction ends on the material 6.
- the reaction comes to a standstill, for example, because no new oxidizing agent is supplied more or was already consumed in the space 8.
- the rod-like drive 2 cools down. For example, this leads to a change in length, whereby the wire-like connecting element 3 loses its mechanical tension and the Flanks or wings of the bell-shaped conveying element 1 again fold down in the starting position shown as a solid line.
- Figure 2a shows an arrangement of a pump in a pipe with a conveying element 1, which in the embodiment, according to the figures 2a, 2b and 2c, as a flexible
- the holder 19 is stationary and therefore forms a fixed point for a relative movement of the drive 2.
- a connecting element 3 which is designed in the embodiment as a wire, the drive 2 is connected to the conveying element 1 in connection.
- the connecting element 3 is guided over deflection rollers 4 and engages at a point 20 of the conveying element. 1
- the arrangement has a first backflow prevention element 13 and a second backflow prevention element 16. These are arranged at the inlet or at the outlet of the space 10.
- FIG. 2b shows a suction process of the arrangement.
- the drive 2 is in an expanded state.
- medium flows into a space 10
- the second backflow prevention element 16 closes the space 10.
- FIG. 2c shows an ejection process of the arrangement.
- the drive 2 is in a contracted state and pulls the conveyor element 1 designed as a flexible tube wall inwards. As a result, the medium is displaced from the space 10 and flows off via the now open backflow prevention element 16.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015225726.6A DE102015225726A1 (de) | 2015-12-17 | 2015-12-17 | Pumpe mit verformbarem Förderelement |
| PCT/EP2016/077702 WO2017102209A1 (de) | 2015-12-17 | 2016-11-15 | Pumpe mit verformbarem förderelement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3390819A1 true EP3390819A1 (de) | 2018-10-24 |
Family
ID=57288455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16795091.4A Withdrawn EP3390819A1 (de) | 2015-12-17 | 2016-11-15 | Pumpe mit verformbarem förderelement |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3390819A1 (de) |
| DE (1) | DE102015225726A1 (de) |
| WO (1) | WO2017102209A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009043170B4 (de) | 2009-09-26 | 2023-02-02 | Vorwerk & Co. Interholding Gmbh | Zum gerichteten Transport eines Fluids geeignete Vorrichtung |
| DE102019002318B4 (de) * | 2019-03-30 | 2021-01-28 | Dörschler GmbH | Energieautarkes Pumpensystem mit einem Antriebsmittel aus einer Formgedächtnislegierung und Verfahren zum Betreiben des Pumpensystems |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE484875C (de) * | 1929-10-19 | Sachsenwerk Licht & Kraft Ag | Pumpe | |
| FR1504494A (fr) * | 1966-05-24 | 1967-12-08 | Materiel Magnetique | Pompe intracorporelle pour la propulsion du sang |
| JPS6053679A (ja) * | 1983-09-01 | 1985-03-27 | Shigemitsu Fujii | 形状記憶合金ポンプ |
| EP1510340B1 (de) * | 1997-07-15 | 2007-01-24 | Silverbrook Research Pty. Limited | Tintenstrahldüse mit geschlitztem Kolben |
| AUPP546598A0 (en) * | 1998-08-26 | 1998-09-17 | Bamford, John O. W. | Flexible cell assembly |
| CA2501825C (en) * | 2002-10-09 | 2009-12-01 | Therasense, Inc. | Fluid delivery device, system and method |
| US7135076B2 (en) * | 2003-08-04 | 2006-11-14 | Lockheed Martin Corporation | Memory metal activation system |
| JP4619690B2 (ja) * | 2003-10-30 | 2011-01-26 | イーメックス株式会社 | 導電性高分子を含むダイヤフラムポンプ及びその駆動方法 |
| US7883325B2 (en) * | 2005-03-25 | 2011-02-08 | Arash Kheradvar | Helically actuated positive-displacement pump and method |
| DE102005040344A1 (de) * | 2005-08-25 | 2007-03-01 | Fresenius Kabi Deutschland Gmbh | Pumpe |
| EP1813803A1 (de) | 2006-01-30 | 2007-08-01 | MAGNETI MARELLI POWERTRAIN S.p.A. | Kraftstoffpumpe betätigt mittels eines Materials mit Formgedächtnis |
| US8096119B2 (en) * | 2006-03-02 | 2012-01-17 | Board Of Regents, The University Of Texas System | Fuel-powered actuators and methods of using same |
| DE102007042791A1 (de) * | 2007-09-07 | 2009-03-12 | Robert Bosch Gmbh | Pumpe oder Kompressor |
| US8752775B2 (en) * | 2008-08-26 | 2014-06-17 | General Electric Company | Method and apparatus for reducing acoustic noise in a synthetic jet |
-
2015
- 2015-12-17 DE DE102015225726.6A patent/DE102015225726A1/de not_active Withdrawn
-
2016
- 2016-11-15 WO PCT/EP2016/077702 patent/WO2017102209A1/de not_active Ceased
- 2016-11-15 EP EP16795091.4A patent/EP3390819A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017102209A1 (de) | 2017-06-22 |
| DE102015225726A1 (de) | 2017-06-22 |
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