DE102008057575A1 - Actuator with a magnetorheological elastomer element - Google Patents
Actuator with a magnetorheological elastomer element Download PDFInfo
- Publication number
- DE102008057575A1 DE102008057575A1 DE102008057575A DE102008057575A DE102008057575A1 DE 102008057575 A1 DE102008057575 A1 DE 102008057575A1 DE 102008057575 A DE102008057575 A DE 102008057575A DE 102008057575 A DE102008057575 A DE 102008057575A DE 102008057575 A1 DE102008057575 A1 DE 102008057575A1
- Authority
- DE
- Germany
- Prior art keywords
- fluid flow
- magnetorheological elastomer
- elastomer element
- change
- tubular element
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
- F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
- F16K7/045—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by electric or magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
Abstract
Die Erfindung betrifft einen Aktor mit einem magnetorheologischen Elastomer-Element, welches unter Ausnutzung des Formgedächtniseffekts durch Einwirkung einer Magnetkraft in unterschiedliche Formen gebracht werden kann und direkt oder indirekt derart auf einen Fluidstrom einwirken kann, dass sich dessen Querschnittsfläche mit einer Formänderung des Elastomer-Elements verändert. Vorzugsweise wirkt das magnetorheologische Elastomer-Element auf ein elastisch verformbares rohrförmiges Element ein, dessen freie Querschnittsfläche mit einer Formänderung des Elastomer-Elements veränderbar ist, um einen im rohrförmigen Element geführten Fluidstrom zu verändern. Dabei kann das magnetorheologische Elastomer-Element den Fluidstrom oder das diesen führende rohrförmige Element im Wesentlichen ringförmig umgeben, während das magnetorheologische Elastomer-Element zumindest mit seiner dem rohrförmigen Element oder dem Fluidstrom abgewandten Seite an einem durch das magnetorheologische Elastomer-Element im Wesentlichen nicht verformbaren Stützelement abgestützt ist.The invention relates to an actuator with a magnetorheological elastomer element, which can be brought into different forms by utilizing a magnetic force by utilizing the shape memory effect and directly or indirectly can act on a fluid flow, that changes its cross-sectional area with a change in shape of the elastomer element , Preferably, the magnetorheological elastomeric element acts on an elastically deformable tubular element whose free cross-sectional area is variable with a change in shape of the elastomeric element to change a fluid flow guided in the tubular element. In this case, the magnetorheological elastomer element substantially surround the fluid flow or the tubular element guiding the same, while the magnetorheological elastomer element at least with its side facing away from the tubular element or the fluid flow on a supporting element that is not substantially deformable by the magnetorheological elastomer element is supported.
Description
Die
Erfindung betrifft einen Aktor mit einem magnetorheologischen Elastomer-Element,
welches unter Ausnutzung des Formgedächtniseffekts durch Einwirkung
einer Magnetkraft in unterschiedliche Formen gebracht werden kann.
Zum Stand der Technik wird auf die
Hinsichtlich
einer gezielten Beeinflussung bzw. Veränderung eines Fluidstromes
sind Stand der Technik bspw. händisch oder elektromechanisch oder
fluidisch oder bspw. über Spindeltrieb mittels eines Elektromotors
verstellbare Düsen, Ventile und Kanäle für
verschiedenste Anwendungsgebiete, wobei die oben letztgenannte Schrift
Weiterer Stand der Technik gemäß der weiteren oben genannten Schriften sind sog. magneto-rheologische Elastomere, bei welchen es sich um eine relativ neuartige Materialklasse handelt, deren mechanische Eigenschaften wie der Speicher- und Verlustmodul durch ein Magnetfeld in weitem Rahmen steuerbar sind. Nachdem weiche magneto-rheologische Elastomere, welche im weiteren als „MRE” abgekürzt werden, auch einen Formgedächtniseffekt zeigen, kann ein Formkörper aus diesem Material durch ein Magnetfeld verformt werden und nimmt beim Abschalten des Magnetfelds seine Ausgangsform wieder ein. In den beiden oben erstgenannten Schriften ist die Verwendung von MRE beispielsweise für die Schwingungsdämpfung; Schwingungsisolation, Aktoren, Sicherheitsschalter, haptische Systeme und künstliche Muskeln vorgeschlagen.Another Prior art according to the other above Typefaces are so-called magneto-rheological elastomers in which It is a relatively new class of materials whose mechanical Properties such as the memory and loss modulus due to a magnetic field are controllable to a large extent. After soft magneto-rheological Elastomers, hereinafter abbreviated to "MRE" can also show a shape memory effect, can Shaped body of this material deformed by a magnetic field be and takes when switching off the magnetic field its initial shape again. In the two above-mentioned writings is the use MRE, for example, for vibration damping; Vibration isolation, actuators, safety switches, haptic systems and artificial muscles proposed.
Vorliegend soll nun ein einfach gestalteter Aktor mit einem MRE nach dem Oberbegriff des Anspruchs 1 aufgezeigt werden (= Aufgabe der Erfindung).present Now is a simple designed actuator with a MRE after the generic term of claim 1 are shown (= object of the invention).
Die Lösung dieser Aufgabe ist dadurch gekennzeichnet, dass das magnetorheologische Elastomer-Element direkt oder indirekt derart auf einen Fluidstrom einwirken kann, dass sich dessen Querschnittsfläche mit einer Formänderung des Elastomer-Elements verändert. Beispielsweise wirkt dabei das MRE auf ein elastisch verformbares rohrförmiges Element ein, dessen freie Querschnittsfläche mit einer Formänderung des Elastomer-Elements veränderbar ist, um einen im rohrförmigen Element geführten Fluidstrom zu verändern. Vorteilhafte Aus- und Weiterbildungen sind Inhalt der weiteren Unteransprüche.The Solution to this problem is characterized in that the magnetorheological elastomer element directly or indirectly so can act on a fluid flow that its cross-sectional area changed with a change in shape of the elastomeric element. For example, the MRE acts on an elastically deformable tubular element, whose free cross-sectional area changeable with a change in shape of the elastomeric element is a guided in the tubular element Change fluid flow. Advantageous training and further education are content of the other subclaims.
Grundlage der vorliegenden Erfindung ist die bekannte Eigenschaft von magnetorheologischen Elastomeren (MRE), sich in einem geeigneten Magnetfeld auszudehnen und diese neue Form nur solange beizubehalten, als das Magnetfeld gehalten wird. Unter Ausnutzung dieser Eigenschaft einer in einem geeigneten Magnetfeld erzielbaren Längenänderung von MRE wird nun vorliegend vorgeschlagen, eine Einengung eines Kanals oder eine Verquetschung eines elastischen Schlauchs (= „rohrförmiges Element”) oder dgl. durch ein MRE hervorzurufen, wenn an dieses ein entsprechendes geeignetes Magnetfeld angelegt wird. Dabei ist es prinzipiell möglich, jeden beliebigen Querschnitt auf diese Weise einzuengen oder in seiner Form zu verändern, besonders vorteilhaft ist es jedoch, wenn das MRE den zu verändernden, bspw. zu drosselnden Fluidstrom oder das diesen führende rohrförmige Element im wesentlichen ringförmig umgibt, wobei der entsprechende Querschnitt des Fluidstroms oder des rohrförmigen Elements bspw. rund oder im wesentlichen rechteckig sein kann.basis The present invention is the known property of magnetorheological elastomers (MRE) to expand in a suitable magnetic field and this to maintain new shape only as long as held the magnetic field becomes. Taking advantage of this property one in a suitable Magnetic field achievable change in length of MRE is now proposed herein, a narrowing of a channel or a squeezing of an elastic tube (= "tubular Element ") or the like by an MRE, if on this a corresponding suitable magnetic field is applied. there It is possible in principle, any cross-section narrow in this way or change in shape, however, it is particularly advantageous if the MRE is to change the For example, to be throttled fluid flow or leading them tubular element substantially annular surrounds, wherein the corresponding cross-section of the fluid flow or the tubular element, for example, round or substantially can be rectangular.
Die
beigefügten
Beim
ersten Ausführungsbeispiel nach den
Im
Zustand nach
Beim
zweiten Ausführungsbeispiel nach den
Nun
noch auf die
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102004041649 B4 [0001] DE 102004041649 B4 [0001]
- - DE 102006016773 A1 [0001] - DE 102006016773 A1 [0001]
- - EP 0236060 B1 [0001, 0002] EP 0236060 B1 [0001, 0002]
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008057575A DE102008057575A1 (en) | 2008-11-15 | 2008-11-15 | Actuator with a magnetorheological elastomer element |
PCT/EP2009/007917 WO2010054775A1 (en) | 2008-11-15 | 2009-11-05 | Actuator having a magnetorheological elastomer element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008057575A DE102008057575A1 (en) | 2008-11-15 | 2008-11-15 | Actuator with a magnetorheological elastomer element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008057575A1 true DE102008057575A1 (en) | 2010-05-20 |
Family
ID=41652661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008057575A Withdrawn DE102008057575A1 (en) | 2008-11-15 | 2008-11-15 | Actuator with a magnetorheological elastomer element |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008057575A1 (en) |
WO (1) | WO2010054775A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012202418A1 (en) | 2011-11-04 | 2013-05-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Adaptive locking and releasing device and their use for the controlled blocking or release of movable components |
WO2014143550A1 (en) * | 2013-03-15 | 2014-09-18 | Abbott Medical Optics Inc. | Magnetically controlled stiffness of materials |
EP3228910A1 (en) * | 2016-04-05 | 2017-10-11 | ABB Schweiz AG | Control valve for fluid medium |
DE102018216699A1 (en) * | 2018-09-28 | 2020-04-02 | Ibeo Automotive Systems GmbH | Locking device and LIDAR measuring system with locking device |
DE102009043170B4 (en) | 2009-09-26 | 2023-02-02 | Vorwerk & Co. Interholding Gmbh | Device suitable for the directed transport of a fluid |
EP4299890A1 (en) * | 2022-06-28 | 2024-01-03 | Hamilton Sundstrand Corporation | Variable geometry nozzle utilizing magnetic fluid |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103854822B (en) * | 2012-12-01 | 2017-03-29 | 山东科技大学 | The magnetic field control method of the magnetic rheology elastic body grain structure of adaptive deformation |
DE102016103661A1 (en) | 2016-03-01 | 2017-09-07 | Khs Gmbh | Actuator for controlling the fluid paths of a filling unit for a beverage filling installation, filling unit for a beverage filling installation and beverage filling installation |
DE102017114712A1 (en) | 2017-06-30 | 2019-01-03 | Khs Gmbh | Actuator for controlling the fluid paths of a filling unit for a beverage filling installation, filling unit for a beverage filling installation and beverage filling installation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0236060B1 (en) | 1986-03-05 | 1990-06-13 | Heatrae-Sadia Heating Limited | Fluid flow control valve |
DE4032555A1 (en) * | 1990-10-13 | 1992-04-16 | Teves Gmbh Alfred | Electromagnetically-operated pump for hydraulic braking system - uses magnetostrictive actuator acting on piston or membrane for varying vol. of pump pressure space |
US20030214199A1 (en) * | 1997-02-07 | 2003-11-20 | Sri International, A California Corporation | Electroactive polymer devices for controlling fluid flow |
DE102004041649B4 (en) | 2004-08-27 | 2006-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Magnetorheological elastomers and their use |
DE102006016773A1 (en) | 2006-04-10 | 2007-10-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Magneto-rheological elastomers (MRE) with polynorbornene as a carrier medium, process for producing such elastomer composites and their use |
DE102006040251A1 (en) * | 2006-08-28 | 2008-03-06 | Robert Bosch Gmbh | Pump, has pair of magnetostrictive actuators arranged in temporal direction-variable magnetic field, where magnetostrictive actuators respectively exhibits pair of magnetic domain directions, which are different from each other |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982722A (en) * | 1975-11-21 | 1976-09-28 | General Motors Corporation | Magnetic control valve |
DE19725686A1 (en) * | 1997-06-18 | 1998-12-24 | Schenck Ag Carl | Flow-rate control device |
-
2008
- 2008-11-15 DE DE102008057575A patent/DE102008057575A1/en not_active Withdrawn
-
2009
- 2009-11-05 WO PCT/EP2009/007917 patent/WO2010054775A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0236060B1 (en) | 1986-03-05 | 1990-06-13 | Heatrae-Sadia Heating Limited | Fluid flow control valve |
DE4032555A1 (en) * | 1990-10-13 | 1992-04-16 | Teves Gmbh Alfred | Electromagnetically-operated pump for hydraulic braking system - uses magnetostrictive actuator acting on piston or membrane for varying vol. of pump pressure space |
US20030214199A1 (en) * | 1997-02-07 | 2003-11-20 | Sri International, A California Corporation | Electroactive polymer devices for controlling fluid flow |
DE102004041649B4 (en) | 2004-08-27 | 2006-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Magnetorheological elastomers and their use |
DE102006016773A1 (en) | 2006-04-10 | 2007-10-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Magneto-rheological elastomers (MRE) with polynorbornene as a carrier medium, process for producing such elastomer composites and their use |
DE102006040251A1 (en) * | 2006-08-28 | 2008-03-06 | Robert Bosch Gmbh | Pump, has pair of magnetostrictive actuators arranged in temporal direction-variable magnetic field, where magnetostrictive actuators respectively exhibits pair of magnetic domain directions, which are different from each other |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009043170B4 (en) | 2009-09-26 | 2023-02-02 | Vorwerk & Co. Interholding Gmbh | Device suitable for the directed transport of a fluid |
DE102012202418A1 (en) | 2011-11-04 | 2013-05-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Adaptive locking and releasing device and their use for the controlled blocking or release of movable components |
WO2013064621A1 (en) | 2011-11-04 | 2013-05-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Adaptive locking and releasing device and use thereof for the controlled blocking and releasing of movable components |
WO2014143550A1 (en) * | 2013-03-15 | 2014-09-18 | Abbott Medical Optics Inc. | Magnetically controlled stiffness of materials |
US9775968B2 (en) | 2013-03-15 | 2017-10-03 | Abbott Medical Optics Inc. | Magnetically controlled stiffness of materials |
EP3228910A1 (en) * | 2016-04-05 | 2017-10-11 | ABB Schweiz AG | Control valve for fluid medium |
DE102018216699A1 (en) * | 2018-09-28 | 2020-04-02 | Ibeo Automotive Systems GmbH | Locking device and LIDAR measuring system with locking device |
EP4299890A1 (en) * | 2022-06-28 | 2024-01-03 | Hamilton Sundstrand Corporation | Variable geometry nozzle utilizing magnetic fluid |
Also Published As
Publication number | Publication date |
---|---|
WO2010054775A1 (en) | 2010-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |