EP3721091A1 - Circulateur a membrane ondulante pilotee - Google Patents
Circulateur a membrane ondulante piloteeInfo
- Publication number
- EP3721091A1 EP3721091A1 EP18811053.0A EP18811053A EP3721091A1 EP 3721091 A1 EP3721091 A1 EP 3721091A1 EP 18811053 A EP18811053 A EP 18811053A EP 3721091 A1 EP3721091 A1 EP 3721091A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- sensor
- edge
- circulator
- motor
- 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
- 208000018999 crinkle Diseases 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims abstract description 78
- 238000001514 detection method Methods 0.000 claims abstract description 68
- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims description 204
- 238000006073 displacement reaction Methods 0.000 claims description 67
- 238000005259 measurement Methods 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000001902 propagating effect Effects 0.000 claims description 3
- 238000010191 image analysis Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 description 12
- 238000011144 upstream manufacturing Methods 0.000 description 11
- 230000008901 benefit Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000013519 translation Methods 0.000 description 4
- 230000005355 Hall effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007620 mathematical function Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 208000012661 Dyskinesia Diseases 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013506 data mapping Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004804 winding Methods 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
- F04B43/0009—Special features
- F04B43/0018—Special features the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
-
- 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
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members
-
- 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
- F04B43/0081—Special features systems, control, safety measures
-
- 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
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
Definitions
- This ripple is used to drive fluid from the fluid inlet opening to the fluid outlet opening. Because of its reciprocating movement, the circulator can generate vibrations that it would be desirable to control to, for example, consider an increase in the life of the circulator.
- An object of the invention is to provide a parameter control means (s) influencing the vibrations of the circulator.
- an undulating diaphragm circulator comprising:
- the circulator further comprising:
- This minimum allowed fluid passage section is the smallest passage section allowed at a given time between the fluid inlet opening and the fluid outlet opening. It is also noted that by adjusting the maximum displacement amplitude of the membrane as well as its frequency of oscillation and following a movement imposed in the time of displacement of the first edge of the membrane relative to the support, the unit of power supply can define the variation of the wavelength passing along the membrane and by consequently the number of inflections of the wave traveling along the membrane in the chamber.
- the first membrane edge is stiffened by an armature to limit its deformation when the first edge is moved according to the reciprocating motion. There is thus a uniform displacement of the first edge of the membrane which limits the appearance of secondary waves on the membrane.
- the circulator according to the invention has a device 5 for detecting at least one value representative of a displacement of the membrane 3 with respect to the body 2.
- This or these sensors may be arranged to measure a position, a speed, an acceleration representative of the displacement of the first edge of the membrane.
- said at least one sensor C1 of the detection device may have a target C12 mechanically connected to any area of the membrane and more particularly at the first edge of the membrane 31, the value representative of a displacement of the membrane varies during the displacement of this target C12 relative to the body of the circulator 2.
- the target C12 is embedded on the membrane.
- the target may be a target whose displacement can be detected via a magnetic and / or electric and / or electromagnetic field measurement varying with the displacement of the target.
- a deformation sensor attached (for example fixed or incorporated) to the membrane, for example at the first edge of the membrane or at the second edge of the membrane or at any location between these edges, to measure deformations of the membrane,
- a sensor of at least one mechanical stress to which said mechanical connection piece 41 is subjected a sensor of at least one mechanical stress to which the at least one spring 42 is subjected.
- angular displacement / rotation sensor for rotary engines with crank-rod for example
- displacement sensor in translation for linear motors for example
- the motor M comprises a movable rotor M1, that is to say an assembly movable by rotation or translation or other relative to a stator M2 of the motor.
- the computer 60 uses the mapping and / or the mathematical functions and / or the database and / or logical operators (IF THEN) and the signal of Sd detection to determine the power signal to be generated to reach this chosen target value.
- the map database can be generated by multiple circulator tests to determine a plurality of operating points.
- an elastic means such as a spring forcing the return of the first membrane edge to a determined position
- each at least one motor supply signal such as the frequency of the signal, its intensity, its voltage, its evolution curves in the voltage or current time.
- the actuating mechanism 4 is arranged to define a maximum amplitude MAX of the reciprocating movement of the first edge 31 of the membrane variable according to said at least one power supply signal delivered to the motor M.
- the actuating mechanism 4 comprises an electromechanical assembly of amplitude variation distinct from said motor.
- the mechanical connection piece may be a pivoting arm about a pivot axis, an electromechanical actuator acting on the position of this pivot axis relative to to this pivoting arm or the length of this arm which is variable to define an amplitude of displacement of the membrane edge without having to vary the stroke / the maximum amplitude of the motor.
- the representative value of the movement of the membrane relative to the body may be a maximum measured displacement amplitude of the first edge of the membrane 31 relative to the body 2.
- the detection device 5 may comprise one or more sensors (each sensor is represented by a black rectangle) arranged at different location (s) of the sensor.
- circulator 1 in this case on the electronic part and / or the electric power supply part of the motor and / or the electromechanical part of the motor and / or the electromagnetic part of the motor and / or the hydraulic part of the circulator and / or preferentially on the mechanical connection between the engine and the first edge of the membrane.
- At least one sensor on the mechanical link between the motor and the first membrane edge because it is here that the most reliable measurement possible of the displacement parameters of the first membrane edge can be obtained. That is, its position and / or speed and / or frequency and / or acceleration and / or the force transmitted to that first edge and / or the maximum amplitude of the first edge displacement.
- the detection device 5 may comprise several sensors of different types chosen, for example by for example, among a Hall effect sensor C5, a synchro-resolver C6, an incremental encoder C1.
- the detection device may be arranged to collect images of a longitudinal profile Prf of the membrane extending between the first and second edges of the membrane 31, 32 to detect said positions of several points of the membrane, these points belonging to said longitudinal profile of the membrane.
- the detection device may comprise a plurality of sensors Cl, Cl ', Cl' 'distributed on the body opposite a longitudinal profile Prf of the membrane going from the first edge to the second membrane edge. This profile extends along the membrane.
- the detection device may comprise an imaging device comprising a light source, such as a laser source generating a plane of illumination of the membrane extending along the membrane of the first edge towards the second edge of the membrane 31, 32.
- a light source such as a laser source generating a plane of illumination of the membrane extending along the membrane of the first edge towards the second edge of the membrane 31, 32.
- the illuminated point positions of the membrane are evaluated by one or more sensors Cl, Cl 'detecting light rays reflected by the membrane or possibly reflected by reflective targets carried by the membrane. The positions of these points measured at a given moment can define a longitudinal profile Prf of the membrane at this given instant.
- the circulator may comprise at least one fluid deflector Dx positioned in the chamber 2a and connected to the body 2 to orient the fluid arriving in the chamber via the fluid inlet opening towards the first edge of the chamber. membrane in a direction D from this first membrane edge to the second membrane edge. A displacement sensor of the first membrane edge belonging to the detection device can be fixed on this deflector Dx.
- the membrane 3 has, for example, a general shape selected from the group of membrane shapes comprising a disc shape, a rectangular shape, a tubular shape.
- the membrane is in the form of a ribbon elongate, and in Figures 2 and 4, it is discoidal shape hollowed in its center.
- the membrane may consist of one or more materials selected from flexible elastomers - NBR - NR - EPDM - VMQ - PU - other food materials (CR - PDM - Peroxide - FKM - Virgin PTFE) - PVC - silicone and / or metallic materials such as stainless steel.
- the interaction between the sensor and its "target” which may be the membrane edge itself or a target carried by this first edge can be achieved by means of a camera associated with a system of analysis of the image, or a system for measuring a magnetic field if the target generates a magnetic field, the target being a magnet or an induction, or electrical if the target is conducting a current, or electromagnetic.
- the sensor may also be optical and be equipped with an optical illumination device of the target (the first membrane edge constituting the target or carrying the target), this illumination being via a ray such as an infrared or laser beam.
- the sensor comprises a device sensitive to a reflection of the ray on the target as a photosensitive cell. The closer the target is to the sensor, the greater the intensity of the reflected ray, which makes it possible to know the position of the first membrane edge relative to the sensor.
- the circulator according to the invention may be a liquid circulator, a gas circulator, a pump, a fan, a compressor, a thruster.
- Controlled shearing The detection device and its / its sensors allows fine control of the minimum distance between the membrane and the chamber wall as well as the propagation characteristics of the wave along the membrane, thus limiting the shear stresses fluid. This is particularly interesting for certain applications such as in cardiac assist circulators where the physicochemical structure of the transported fluid is likely to be modified in case of shear above a predetermined threshold.
- the detection device and its / its sensors can be very simple to implement, for example by positioning a Hall effect sensor on the stator vis-à-vis the rotor and its permanent magnet ( as for brushless motors).
- the detection device and its / its sensors allow to give other indications on the operation of the circulator which are correlated to the position of the membrane, such as the position of the rotor, or the flow and pressure for a given fluid viscosity, or simply, whether or not the circulator works.
- Indicator on the pumped fluid The measurement of the position of the first membrane edge also makes it possible to give an indication of the viscosity of the pumped fluid, in particular by means of a cartographic database generated with a given fluid, or by a calibration of the circulator made with a fluid of given viscosity.
- the data of the mapping can be used to deduce the viscosity of the fluid.
- the invention may relate to a method for measuring viscosity of fluid passing through the chamber of the circulator according to the invention.
- Modular speed of control The information processing of the sensor (s) can adapt to the complexity of the engine control to be implemented.
- the speed of control of the movement of the membrane depends on the speed with which it must be controlled: control on each oscillation / peak amplitude thereof, or control over a longer period (control over several oscillations / amplitudes possible decrease in frequency sensor sampling), or infrequent control to verify the correct operation of the circulator.
- the invention may also relate to a method of estimating the operating state of the circulator of applying a motor supply signal and observing the amplitude of the first edge of the membrane while a liquid of Known viscosity circulates in the chamber, then generate a status signal of the circulator as a function of the value taken by the measured amplitude.
- the power unit can control a power supply shutdown of the motor and the generation of an alarm or otherwise continue this power supply.
- control can be done according to any type of control / corrector: all-or-nothing, proportional, proportional-integral-derivative, fuzzy logic, or other.
- the slaving of the movement of the excited side of the membrane can therefore result in a real-time modification of the PWM control of the power bridge (that is to say, said switching means of the power supply), in the case where the supply of the actuator is by an inverter, a change that takes place more or less often depending on how quickly to control the circulator.
- Hardware control Like rotary brushless motors, position control can be done in hardware, reducing the costs associated with software control (see Figure 1). This type of piloting has the particularity to allow an oscillation of the rotor exactly at the resonant frequency of the system, the oscillation not being forced.
- Adaptation of the waveform For a fluid or a load, this measurement can be used to adapt the shape (generally sinusoidal) of the current in the motor to improve the undulation of the membrane and to find the optimal control strategy (triangle, niche, sinus with an offset to raise or lower the midpoint of oscillation of the membrane, draws, any periodic sequence, ...), and thus improve the efficiency of the system.
- This detection device and its sensor (s) allows to automate the control of the circulator.
- Calibration of the circulator The measurement of the position of the diaphragm can be useful in the calibration of the circulator during its manufacture or its maintenance, in order to better regulate the parameters of the circulator: to increase the number of turns of the motor, to modify the separating the flanges forming opposite walls of the chamber, replacing parts, modifying the midpoint of membrane oscillation by adjusting the position of the membrane support, modifying the resonance frequency by changing the spring.
- this calibration may be the only time in the life of the circulator during which a sensor will be connected to it.
- This position measurement also allows to to be able to place the membrane between these two flanges, for example by pressing the membrane against a flange to pass a bulky object in the head of the circulator that could not pass with the membrane in the middle, or for avoid any loss of load caused by it when filling its hydraulic circuit or putting it under pressure / depression.
- Use of several sensors The integration of several sensors into the circulator's detection device makes the circulator more reliable or specifies the measurements by the redundancy of information.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1761679A FR3074544B1 (fr) | 2017-12-05 | 2017-12-05 | Circulateur a membrane ondulante pilotee |
PCT/EP2018/083704 WO2019110695A1 (fr) | 2017-12-05 | 2018-12-05 | Circulateur a membrane ondulante pilotee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3721091A1 true EP3721091A1 (fr) | 2020-10-14 |
EP3721091B1 EP3721091B1 (fr) | 2022-02-09 |
Family
ID=61003243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18811053.0A Active EP3721091B1 (fr) | 2017-12-05 | 2018-12-05 | Circulateur a membrane ondulante pilotee |
Country Status (9)
Country | Link |
---|---|
US (1) | US11649815B2 (fr) |
EP (1) | EP3721091B1 (fr) |
JP (1) | JP2021505813A (fr) |
CN (1) | CN111788390B (fr) |
CA (1) | CA3084583C (fr) |
DK (1) | DK3721091T3 (fr) |
ES (1) | ES2912293T3 (fr) |
FR (1) | FR3074544B1 (fr) |
WO (1) | WO2019110695A1 (fr) |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR355700A (fr) * | 1905-06-28 | 1905-11-09 | Leopold Selme | Turbine à membranes ondulantes, reversible comme pompe |
FR2497543B1 (fr) * | 1981-01-07 | 1986-08-29 | Imed Corp | Mecanismes et procedes pour controler l'ecoulement d'un fluide vers un recepteur et convertir une pompe en controleur ainsi que controler la pression du fluide |
US4722230A (en) * | 1986-05-29 | 1988-02-02 | Graco Inc. | Pressure gauge for high pressure flow through diaphragm pump |
JP2860398B2 (ja) * | 1995-05-22 | 1999-02-24 | 工業技術院長 | アキシャル磁気浮上回転モータ及びこれを用いた回転機器 |
FR2744769B1 (fr) * | 1996-02-12 | 1999-02-12 | Drevet Jean Baptiste | Circulateur de fluide a membrane vibrante |
JP3863292B2 (ja) * | 1998-05-29 | 2006-12-27 | シーケーディ株式会社 | 液体供給装置 |
US6659740B2 (en) * | 1998-08-11 | 2003-12-09 | Jean-Baptiste Drevet | Vibrating membrane fluid circulator |
DE10162773A1 (de) * | 2001-12-20 | 2003-07-10 | Knf Flodos Ag Sursee | Dosierpumpe |
US7134343B2 (en) * | 2003-07-25 | 2006-11-14 | Kabushiki Kaisha Toshiba | Opto-acoustoelectric device and methods for analyzing mechanical vibration and sound |
DE102005039772A1 (de) * | 2005-08-22 | 2007-03-08 | Prominent Dosiertechnik Gmbh | Magnetdosierpumpe |
FR2891321B1 (fr) * | 2005-09-26 | 2012-05-25 | Inergy Automotive Systems Res | Pompe a membrane vibrante |
US20080232987A1 (en) * | 2006-11-28 | 2008-09-25 | S.A.M. Amstar | Diaphragm circulator |
FR2893991B1 (fr) | 2005-11-30 | 2013-10-11 | Jean Baptiste Drevet | Circulateur a membrane |
US20090026881A1 (en) * | 2007-07-26 | 2009-01-29 | Hakan Erturk | Piezoelectric fan, method of cooling a microelectronic device using same, and system containing same |
FR2934650B1 (fr) * | 2008-08-01 | 2010-09-17 | Jean Baptiste Drevet | Generateur d'energie. |
FR2934651B1 (fr) * | 2008-08-01 | 2010-08-27 | Ams R & D Sas | Pompe a membrane ondulante perfectionnee. |
US20110150669A1 (en) * | 2009-12-18 | 2011-06-23 | Frayne Shawn Michael | Non-Propeller Fan |
US20110293450A1 (en) * | 2010-06-01 | 2011-12-01 | Micropump, Inc. | Pump magnet housing with integrated sensor element |
EP2469089A1 (fr) * | 2010-12-23 | 2012-06-27 | Debiotech S.A. | Procédé de contrôle électronique et système pour pompe piézo-électrique |
FR3021074B1 (fr) * | 2014-05-14 | 2016-05-27 | Saint Gobain Performance Plastics France | Pompe a membrane |
WO2018102561A1 (fr) * | 2016-11-30 | 2018-06-07 | Massachusetts Institute Of Technology | Moteur linéaire à denture fine, à force élevée et à faible bruit |
TWI650545B (zh) * | 2017-08-22 | 2019-02-11 | 研能科技股份有限公司 | 致動傳感模組 |
-
2017
- 2017-12-05 FR FR1761679A patent/FR3074544B1/fr active Active
-
2018
- 2018-12-05 ES ES18811053T patent/ES2912293T3/es active Active
- 2018-12-05 CN CN201880088509.2A patent/CN111788390B/zh active Active
- 2018-12-05 JP JP2020531146A patent/JP2021505813A/ja active Pending
- 2018-12-05 US US16/770,445 patent/US11649815B2/en active Active
- 2018-12-05 EP EP18811053.0A patent/EP3721091B1/fr active Active
- 2018-12-05 DK DK18811053.0T patent/DK3721091T3/da active
- 2018-12-05 CA CA3084583A patent/CA3084583C/fr active Active
- 2018-12-05 WO PCT/EP2018/083704 patent/WO2019110695A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
DK3721091T3 (da) | 2022-04-25 |
CA3084583C (fr) | 2022-08-23 |
WO2019110695A1 (fr) | 2019-06-13 |
JP2021505813A (ja) | 2021-02-18 |
ES2912293T3 (es) | 2022-05-25 |
FR3074544A1 (fr) | 2019-06-07 |
US20200386219A1 (en) | 2020-12-10 |
FR3074544B1 (fr) | 2021-10-22 |
CN111788390B (zh) | 2023-01-10 |
EP3721091B1 (fr) | 2022-02-09 |
CA3084583A1 (fr) | 2019-06-13 |
US11649815B2 (en) | 2023-05-16 |
CN111788390A (zh) | 2020-10-16 |
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