EP1438514A1 - Ventillose pumpe - Google Patents
Ventillose pumpeInfo
- Publication number
- EP1438514A1 EP1438514A1 EP02778979A EP02778979A EP1438514A1 EP 1438514 A1 EP1438514 A1 EP 1438514A1 EP 02778979 A EP02778979 A EP 02778979A EP 02778979 A EP02778979 A EP 02778979A EP 1438514 A1 EP1438514 A1 EP 1438514A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- pump according
- cross
- fluid
- tube
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D33/00—Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type
-
- 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
- F04B43/0009—Special features
- F04B43/0027—Special features without valves
-
- 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
- F04B43/09—Pumps having electric drive
-
- 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
- F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
Definitions
- the invention relates to a pump with a tube through which a fluid is conveyed, the tube having a first section on the inlet side with a non-changeable conveying cross section, and with a device for generating transverse vibrations in the fluid.
- the fluid to be pumped is usually conveyed via parts that are moved in translation, e.g. Pistons, or rotatory pump wheels conveyed. It is also known to displace fluid in a deformable hose, e.g. by squeezing the tubing to cause the fluid to pump.
- a pump is described in WO 00/62838 A2, in which elastically deformable pipes are located on both sides of a central section in which the pumping action is generated by external force. or hose sections.
- the different elasticity behavior of these two sections creates different pressures in these sections, so that the elastic contraction of the two sections creates a pumping action in one direction or the other.
- Any two, ie both rigid and elastic, pipes can be connected to the two elastic sections.
- the invention is therefore based on the object of providing a pump which avoids the disadvantages described as far as possible.
- the pump according to the invention works on the principle that the fluid, when it is set into vibration, can carry out transverse vibrations in the second section with the variable delivery cross-section and can thus spread or flow in this oscillatory system, whereas in the first section with the unchangeable delivery cross-section, depending on the compressibility of the medium, vibration does not occur or only to a much lesser extent.
- the waves of the vibration generated in the fluid will therefore largely spread in the direction of the second section with the variable delivery cross section, so that the fluid inevitably flows from the first section to the second section.
- the device for generating vibrations in the fluid is ideally located approximately in the connection area of the first section to the second
- Section arranged, wherein there are several ways to generate vibrations in the fluid. If there are no particularly high demands on the purity of the fluid, there is the possibility of using parts which can be displaced relative to one another, such as pistons, telescopically displaceable pipe sections or the like. If this requirement does not apply, there is the possibility of causing the fluid to vibrate, for example, by means of a piston acting from the outside on an, for example, elastically deformable section of the pipe or by a device which narrows or widens the pipe cross section in a ring-shaped manner.
- a preferred embodiment of the invention is characterized in that the conveying cross section of the second section has partial cross sections, the conveying cross section of which can be changed.
- the total cross-section of the second section can be unchangeable in each cross-sectional plane, but the conveying cross-section of the partial cross-sections can be changed such that the sum of the changeable partial cross-sections in each cross-sectional plane always results in the unchangeable total cross-section in this cross-sectional plane.
- FIG. 1 shows a schematic section through a first embodiment of the invention
- FIG. 2 is a side view of the embodiment corresponding to FIG. 1,
- FIG. 3 is a top view of the embodiment of FIG. 2;
- FIG. 4 is a longitudinal view of the embodiment of FIG. 3,
- FIG. 1 to 4 show a first preferred embodiment of a pump according to the invention, which essentially consists of a pipe 4 with a first section 1 with a non-changeable delivery cross section and a second section 3 with a changeable delivery cross section.
- the wall of the tube 4 has a negligible deformability under pressure or the action of vibrations within the scope of the invention, but can be flexible if required, as e.g. of hydraulic hoses is known.
- the total cross section of the tube 4 is, as can best be seen in FIGS. 1 and 4, divided into partial cross sections 4a, 4b. This subdivision takes place in the first section by means of a rigid partition 7.
- This rigid partition 7 merges at 8 into an elastic membrane.
- a device 2 for generating vibrations engages, which has a pressure plate 10 attached to the membrane 9 and a piston rod 11 or the like. has, which is driven by any suitable drive device.
- the back and forth movement of the pressure plate 10 causes the membrane 9, which is attached at 8 and at the tube outlet, to oscillate, as shown schematically in FIG. 1.
- the end can also be free.
- the membrane only has to be suspended on at least two sides. Due to the vibration of the membrane 9, the conveying cross section of the partial cross sections 4a, 4b is further changed, although the overall cross section of the tube 4 remains unchanged.
- the membrane 9 can either be a thin, elastic membrane, or it can also be a link chain composed of stable and wear-resistant plates if, for example, fluids with highly wear-promoting ingredients how mud or debris should be extracted.
- a rigid plate or extension can be connected to the diaphragm 9 after the outlet 6 in order to prevent the flow around the edge of the diaphragm 9 at the outlet 6 as much as possible, which could reduce the efficiency of the pump according to the invention.
- FIG. 5 shows a further embodiment of a pump according to the invention, in which the pipe 4 in turn has a first section 1 with an essentially rigid or pressure-resistant pipe or hose.
- the second section 3 consists of a double-walled tube, the outer tube wall 13 being rigid, whereas the inner tube wall 14 is elastic.
- a device 2 for generating vibrations is again provided, which can consist of a device (not specified in more detail) which generates vibrations in the fluid.
- This can either be a device which, as shown by the arrows 15, deforms the transition region mechanically and elastically, for example by means of pressure stamps which press on the outer tube 13, which in this case is elastic.
- the changeable conveying cross section of the second section 3 is created in that a sealed, deformable insert 16 is arranged within a rigid outer tube 13 and is filled, for example, with air or another compressible medium.
- the pipe end of the first section 1 is received concentrically in the pipe 13, an annular gap being formed between the pipe 1 of the first section and the pipe 13, in which a sleeve 25 is sealed and slidably mounted.
- a sleeve 25 is sealed and slidably mounted.
- the tube of the second section is elastically deformable, but has an extension 18 in the transition area to section 1 which is rigid.
- this extension 18 the pipe end of the first section is received concentrically.
- the tube end of the first section also has an increased wall thickness in the transition area within the sleeve 18, so that a relative movement of the first first section 1 and second section 3 leads to a pumping movement, which in turn causes the vibrations in the fluid and subsequently the forced fluid flow from inlet 5 to outlet 6 causes.
- a rigid first section with an unchangeable conveying cross section is connected to a second section 3 with a changeable conveying cross section.
- the tube 4 could, for example, have a square, rectangular or elliptical cross-sectional shape, one, in the exemplary embodiment the top wall of the second section, being designed to be elastically deformable. If a mechanical force periodically acts on this wall section from the outside, as symbolically represented by the double arrow 19, an oscillation in the fluid and thus a pumping action is again generated.
- FIG. 9 shows an embodiment in which a type of piston pump 23 is connected between the first section 1 and the second section 3, which produces the oscillation in the second section 3, which in turn is designed as an elastic tube.
- a plate 10 with which the vibrations are generated according to Fig. 1 is not arranged in the membrane 9 but in the rigid partition 7 and by means of a piston rod 11 or the like transverse to the longitudinal extension of the Tube can be moved.
- FIG. 13 shows an embodiment of the invention in which plates 24 are movably arranged on opposite sides of tube 3. These plates are moved synchronously in such a way that the lower plate 24 and the upper plate 24 move simultaneously up and down together, whereby a corresponding flow or vibration is generated in the fluid, which also is transferred to the membrane 9.
- FIG. 10 and 11 show a side view and a top view of a pump according to the invention in the form of a tube 4 which is fastened to a ship's hull 21 via a holder 20.
- the holder 20 serves on the one hand to pivot the tube 4, as indicated by the arrow 22 in FIG. 11, and on the other hand to carry out the technically necessary devices for generating the vibrations in the fluid.
- the pumping action creates a fluid flow from inlet 5 to outlet 6, which naturally causes the ship to move in the opposite direction.
- a section of the pipe has a non-changeable delivery cross section, so that the vibrations generated in the fluid are not or only in it continue to a lesser extent than in the second section with a variable delivery cross section, in which transverse vibrations of the fluid are permitted.
- the vibrations that run back and forth in the second section in the longitudinal direction of the tube are practically reflected on the first section (due to the inertia of the fluid and the rigidity of the first section), so that there is an overall flow in the tube 4 which is from Inlet 5 flows to outlet 6.
- Section does not necessarily have to be the same size as the total cross section of the second section) and the frequency with which the Vibration is generated in the fluid, and the elasticity or the shape change behavior of the second section, the delivery behavior of the pump can be adapted very well to the respective requirements. It is also possible to subdivide the overall cross-section of the second section not only into two, but also into several partial cross-sections, whereby an almost pulse-free flow can be achieved by suitable excitation of the fluid in the individual partial cross-sections. It is also possible to install one or more low-pass elements after the outlet 6 in order to smooth the fluid flow. The use of higher oscillation frequencies also has a positive effect on the smoothing of the fluid flow.
- the invention e.g. as a propulsion system for lifeboats. If the pressure fluctuations generated are not too great, aquatic animals such as fish or marine mammals can also be pumped without suffering any damage. It also shows that most designs are very insensitive to dirt and wear and also e.g. water contaminated with mud and stones can be pumped without damaging or clogging the pump.
- a pump has a tube 4, through which a fluid is conveyed, and a device 2 for generating transverse vibrations in the fluid.
- the tube 4 has on the inlet side 5 a first section 1 with an unchangeable conveying cross section and on the outlet side 6 a second section 3 with a changeable conveying cross section.
- the pump according to the invention works on the principle that the fluid, when it is set in vibration, can carry out transverse vibrations in the second section 3 with the variable delivery cross-section and can thus spread or flow in this vibratory system, whereas in the first Section 1 with the non-changeable delivery cross-section, depending on the compressibility of the medium, vibration does not occur or only to a much lesser extent.
- the waves of the vibration generated in the fluid will therefore largely spread in the direction of the second section 3 with the variable delivery cross section, so that there is inevitably a flow of the fluid from the first section 1 to the second section 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT16872001 | 2001-10-23 | ||
AT0168701A AT412416B (de) | 2001-10-23 | 2001-10-23 | Ventillose pumpe |
PCT/AT2002/000299 WO2003036098A1 (de) | 2001-10-23 | 2002-10-21 | Ventillose pumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1438514A1 true EP1438514A1 (de) | 2004-07-21 |
EP1438514B1 EP1438514B1 (de) | 2011-07-13 |
Family
ID=3688660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02778979A Expired - Lifetime EP1438514B1 (de) | 2001-10-23 | 2002-10-21 | Ventillose pumpe |
Country Status (4)
Country | Link |
---|---|
US (1) | US7101159B2 (de) |
EP (1) | EP1438514B1 (de) |
AT (2) | AT412416B (de) |
WO (1) | WO2003036098A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4677744B2 (ja) * | 2003-11-04 | 2011-04-27 | ソニー株式会社 | 噴流発生装置、電子機器及び噴流発生方法 |
JP4572548B2 (ja) | 2004-03-18 | 2010-11-04 | ソニー株式会社 | 気体噴出装置 |
US20090032446A1 (en) * | 2007-08-01 | 2009-02-05 | Triwatech, L.L.C. | Mobile station and methods for diagnosing and modeling site specific effluent treatment facility requirements |
US10166319B2 (en) | 2016-04-11 | 2019-01-01 | CorWave SA | Implantable pump system having a coaxial ventricular cannula |
US9968720B2 (en) | 2016-04-11 | 2018-05-15 | CorWave SA | Implantable pump system having an undulating membrane |
FR3073578B1 (fr) * | 2017-11-10 | 2019-12-13 | Corwave | Circulateur de fluide a membrane ondulante |
EP4114504A1 (de) | 2020-03-06 | 2023-01-11 | CorWave SA | Implantierbare blutpumpe, die ein linearlager umfasst |
WO2024105583A1 (en) | 2022-11-15 | 2024-05-23 | CorWave SA | Implantable heart pump system including an improved apical connector and/or graft connector |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE956020C (de) * | 1953-07-10 | 1957-01-10 | Dr Gerhart Liebau | Verfahren zum ventillosen Foerdern oder Beschleunigen von Fluessigkeiten bzw. Gasen |
US2888877A (en) * | 1956-04-19 | 1959-06-02 | Ohio Commw Eng Co | Apparatus for pumping |
GB1302541A (de) * | 1969-02-07 | 1973-01-10 | ||
US3902083A (en) | 1972-06-05 | 1975-08-26 | Gould Inc | Pulsed droplet ejecting system |
US5270484A (en) | 1990-09-14 | 1993-12-14 | Canon Kabushiki Kaisha | Powder conveying device |
US5193986A (en) * | 1992-01-06 | 1993-03-16 | Grant Manufacturing Corporation | Fluid pump |
DE4223019C1 (de) * | 1992-07-13 | 1993-11-18 | Fraunhofer Ges Forschung | Ventillose Mikropumpe |
US6132187A (en) * | 1999-02-18 | 2000-10-17 | Ericson; Paul Leonard | Flex-actuated bistable dome pump |
US6254355B1 (en) * | 1999-04-19 | 2001-07-03 | California Institute Of Technology | Hydro elastic pump which pumps using non-rotary bladeless and valveless operations |
AUPQ492299A0 (en) * | 1999-12-30 | 2000-02-03 | Doig, Ian Dracup Dr. | An improved travelling wave diaphragm pump |
-
2001
- 2001-10-23 AT AT0168701A patent/AT412416B/de not_active IP Right Cessation
-
2002
- 2002-10-21 US US10/493,205 patent/US7101159B2/en not_active Expired - Fee Related
- 2002-10-21 AT AT02778979T patent/ATE516442T1/de active
- 2002-10-21 EP EP02778979A patent/EP1438514B1/de not_active Expired - Lifetime
- 2002-10-21 WO PCT/AT2002/000299 patent/WO2003036098A1/de not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO03036098A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATA16872001A (de) | 2004-07-15 |
EP1438514B1 (de) | 2011-07-13 |
AT412416B (de) | 2005-02-25 |
US20050031474A1 (en) | 2005-02-10 |
WO2003036098A1 (de) | 2003-05-01 |
US7101159B2 (en) | 2006-09-05 |
ATE516442T1 (de) | 2011-07-15 |
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