DE102012215548A1 - Adjusting device for bypass valve of exhaust gas turbocharger of internal combustion engine of vehicle, has adjusting unit provided with electroactive polymer actuator and connected with bypass valve through mechanical coupling element - Google Patents
Adjusting device for bypass valve of exhaust gas turbocharger of internal combustion engine of vehicle, has adjusting unit provided with electroactive polymer actuator and connected with bypass valve through mechanical coupling element Download PDFInfo
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- DE102012215548A1 DE102012215548A1 DE201210215548 DE102012215548A DE102012215548A1 DE 102012215548 A1 DE102012215548 A1 DE 102012215548A1 DE 201210215548 DE201210215548 DE 201210215548 DE 102012215548 A DE102012215548 A DE 102012215548A DE 102012215548 A1 DE102012215548 A1 DE 102012215548A1
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- bypass valve
- electroactive polymer
- adjusting device
- polymer actuator
- mechanical coupling
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- 229920001746 electroactive polymer Polymers 0.000 title claims abstract description 37
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 title claims description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 21
- 229920006254 polymer film Polymers 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 238000009434 installation Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
- F02B37/186—Arrangements of actuators or linkage for bypass valves
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- 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
- F16K31/025—Actuating devices; Operating means; Releasing devices electric; magnetic actuated by thermo-electric means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/857—Macromolecular compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Supercharger (AREA)
Abstract
Description
Die Erfindung betrifft eine Stellvorrichtung für ein auch als Wastegate bezeichnetes Bypassventil, das einem Abgasturbolader einer Brennkraftmaschine zugeordnet ist. Mit dem über ein Stellmittel der Stellvorrichtung betätigbaren Bypassventil kann ein Teilstrom eines Abgasstroms umgelenkt werden.The invention relates to an adjusting device for a so-called wastegate bypass valve, which is associated with an exhaust gas turbocharger of an internal combustion engine. With the bypass valve which can be actuated via an adjusting means of the adjusting device, a partial flow of an exhaust gas flow can be deflected.
Der Abgasturbolader nutzt die thermische Energie und die Druckenergie in den Abgasen der Brennkraftmaschine, um daraus Energie zurückzugewinnen, wodurch der Wirkungsgrad der Brennkraftmaschine verbessert werden kann.The exhaust gas turbocharger uses the thermal energy and the pressure energy in the exhaust gases of the internal combustion engine to recover energy therefrom, whereby the efficiency of the internal combustion engine can be improved.
Der Abgasturbolader weist hierzu ein Turbinenrad und ein Verdichterrad auf, die über eine im Gehäuse des Abgasturboladers gelagerte Welle starr miteinander verbunden sind. Das Turbinenrad wird über einen Abgasstrom angetrieben und synchron dazu das Verdichterrad, das die angesaugte Verbrennungsluft verdichtet und der Brennkraftmaschine zuführt. Mit steigender Motordrehzahl erhöht sich die das Turbinenrad antreibende Abgasmenge, wodurch gleichzeitig die von dem Verdichterrad geförderte Verbrennungsluft steigt, was zu einer weiter wachsenden Abgasmenge der Brennkraftmaschine führt. Um die mechanischen und thermischen Grenzen der Brennkraftmaschine nicht zu überschreiten, ist eine Regelung des Abgasturboladers notwendig. Als Maßnahme, um einen weiteren Anstieg der Turbinendrehzahl zu unterbinden und gleichzeitig den Abgasdruck zu senken, ist eine Regelung des Abgasturboladers bekannt. Dazu wird ein auch als Wastegate bezeichnetes Bypassventil eingesetzt, ausgebildet als ein mit dem Turbinengehäuse des Abgasturboladers verbundenes Klappenventil. Bei Bedarf kann das Bypassventil geöffnet werden, um einen Abgasteilstrom an dem Turbinenrad vorbei, beispielsweise direkt in die Abgasanlage des Fahrzeugs, zu leiten. Im niedrigen Drehzahlbereich schließt das Bypassventil, wodurch der gesamte Abgasstrom zum Antrieb der Turbine nutzbar ist.For this purpose, the exhaust-gas turbocharger has a turbine wheel and a compressor wheel, which are rigidly connected to each other via a shaft mounted in the housing of the exhaust-gas turbocharger. The turbine wheel is driven via an exhaust gas flow and in synchronism with the compressor wheel, which compresses the intake combustion air and the internal combustion engine supplies. As the engine speed increases, the amount of exhaust gas driving the turbine wheel increases, as a result of which the combustion air conveyed by the compressor wheel increases, which leads to a further increasing exhaust gas quantity of the internal combustion engine. In order not to exceed the mechanical and thermal limits of the internal combustion engine, a regulation of the exhaust gas turbocharger is necessary. As a measure to prevent a further increase in the turbine speed and at the same time to reduce the exhaust gas pressure, a regulation of the exhaust gas turbocharger is known. For this purpose, a bypass valve, also referred to as a wastegate, is used, designed as a flap valve connected to the turbine housing of the exhaust gas turbocharger. If desired, the bypass valve may be opened to direct an exhaust partial flow past the turbine wheel, for example directly into the exhaust system of the vehicle. In the low speed range, the bypass valve closes, allowing the entire exhaust gas flow to be used to drive the turbine.
Die
Die Aufgabe der Erfindung liegt darin, eine einfach aufgebaute und kostengünstig realisierbare Betätigung eines Bypassventils vorzuschlagen, die wirksam, bauraumoptimiert und leicht montierbar ausgeführt ist.The object of the invention is to propose a simple design and inexpensive realizable operation of a bypass valve, which is designed to be effective, space-optimized and easy to install.
Die Lösung dieser Problemstellung ergibt sich aus den kennzeichnenden Merkmalen des Anspruchs 1. Die abhängigen, auf den Anspruch 1 rückbezogenen Ansprüche geben jeweils vorteilhafte Weiterbildungen der Erfindung wieder.The solution of this problem arises from the characterizing features of claim 1. The dependent, back to claim 1 claims give each advantageous developments of the invention again.
Gemäß der Erfindung ist für das auch als Wastegate bezeichnete Bypassventil eine Stellvorrichtung vorgesehen, die als Stellmittel einen elektroaktiven Polymeraktor vorsieht, der über ein mechanisches Koppelglied mit dem Bypassventil verbunden ist. Elektroaktive Polymere (EAP), die auch als Funktionswerkstoffe oder Funktionspolymere bezeichnet werden, zeichnen sich im Gegensatz zu Piezokeramiken durch konstante hohe mechanische Dehnungen (bis > 100%) in Verbindung mit relativ großen aktorischen Kräften aus. Die ein geringes Gewicht aufweisenden und kostengünstig herstellbaren elektroaktiven Polymere sind einsetzbar, um aktive Funktionen zu übernehmen, wobei das EAP auf Elektrizität als Stimulator aktiv reagiert und elektrische Energie direkt in mechanische Arbeit umwandelt. Im Unterschied zu piezoelektrischen Keramiken, die über vergleichbare Eigenschaften zur Energiewandlung verfügen, weisen elektroaktive Elastomere deutlich höhere Dehnungseigenschaften auf. Weiterhin erlauben das EAP bei einer sehr viel geringeren Materialdichte eine weitgehend freie Formbarkeit, das sich vorteilhaft auch für eine Großserienanwendung eignet.According to the invention, an adjusting device is provided for the also called wastegate bypass valve, which provides as adjusting means an electroactive polymer actuator which is connected via a mechanical coupling member to the bypass valve. Electroactive polymers (EAP), which are also referred to as functional materials or functional polymers, are characterized, in contrast to piezoceramics by constant high mechanical strains (up to> 100%) in conjunction with relatively large actor forces. The low weight and low cost electroactive polymers can be used to perform active functions, with the EAP actively reacting to electricity as a stimulator and converting electrical energy directly into mechanical work. In contrast to piezoelectric ceramics, which have comparable properties for energy conversion, electroactive elastomers have significantly higher elongation properties. Furthermore, the EAP allow for a much lower material density, a largely free formability, which is also advantageous for a large-scale application.
In der
Für die erfindungsgemäße Anwendung eines elektroaktiven Polymeraktors, der gemeinsam mit einem mechanischen Koppelglied zur Betätigung eines Bypassventils vorgesehen ist, ergibt sich eine zuverlässige, dauerhaft wirksame und kostengünstige Betätigung des Bypassventils. Gegenüber bisherigen bekannten pneumatischen oder elektrischen Aktoren zur Bypassventilbetätigung bietet die Erfindung sowohl eine bauraum- als auch kostenoptimierte Lösung, die zudem einen Gewichtsvorteil aufweist und einfach zu montieren ist.For the inventive application of an electroactive polymer actuator, which is provided together with a mechanical coupling member for actuating a bypass valve, results in a reliable, permanently effective and cost-effective operation of the bypass valve. Compared to previous known pneumatic or electric actuators for bypass valve actuation, the invention offers both a space-and cost-optimized solution, which also has a weight advantage and is easy to assemble.
Gemäß einer bevorzugten Ausgestaltung der Erfindung wird für das mechanische Koppelglied eine gestapelte, gefaltete oder gerollte elektroaktive Polymerfolie verwendet, die gemeinsam mit einer zumindest eine Elektrode und wenigstens eine Gegenelektrode umfassenden Elektrodenstruktur den elektroaktiven Polymeraktor bilden. Alternativ zu einer Polymerfolie kann ein Polymerfolienband verwendet werden. Durch die Anzahl der in mehreren geschichteten Lagen zu einem Schichtverbund aufgebauten Polymerfolien zur Bildung des Polymeraktors kann unmittelbar die Stellkraft beeinflusst werden. In vorteilhafter Weise kann der modular aufgebaute elektroaktive Polymeraktor individuell gestaltet und an vorgegebene Einbauverhältnisse bzw. bauliche Konturen des Abgasturboladers angepasst werden.According to a preferred embodiment of the invention, a stacked, folded or rolled electroactive polymer film is used for the mechanical coupling member, which form the electroactive polymer actuator together with a comprising at least one electrode and at least one counter electrode electrode structure. As an alternative to a polymer film, a polymer film tape can be used. Due to the number of polymer films constructed in several layered layers to form a layer composite for forming the polymer actuator, the actuating force can be directly influenced. Advantageously, the modular electroactive polymer actuator can be designed individually and adapted to predetermined installation conditions or structural contours of the exhaust gas turbocharger.
Den Gestaltungsfreiraum erweiternd kann der als Stellmittel zur Betätigung des Bypassventils eingesetzte, elektroaktive Polymeraktor als ein dehnbarer, eine Druckkraft ausübender Aktor ausgelegt werden. Alternativ dazu bietet es sich an, einen stauchbaren, eine Zugkraft auslösenden, elektroaktiven Polymeraktor zu verwenden.Expanding the freedom of design, the electroactive polymer actuator used as actuating means for actuating the bypass valve can be designed as an expandable actuator exerting a compressive force. Alternatively, it is convenient to use a compressible, tensile force inducing, electroactive polymer actuator.
Die erfindungsgemäße Stellvorrichtung umfasst als mechanisches Koppelglied eine Kolben-Zylindereinheit. In einer zylindrischen Aufnahme eines Gehäuses der Kolbenzylindereinheit ist ein Kolben längsverschiebbar geführt sowie der unmittelbar oder mittelbar mit dem Kolben zusammenwirkende elektroaktive Polymeraktor integriert. Um einen abgetrennten, abgedichteten Einbau des Polymeraktors zu erreichen, kann beispielsweise mittels einer zwischen zwei Gehäuseteilen eingesetzten Dichtscheibe oder Trennfolie der Einbauraum wirksam abgedichtet werden.The adjusting device according to the invention comprises a piston-cylinder unit as a mechanical coupling member. In a cylindrical receptacle of a housing of the piston-cylinder unit, a piston is guided so as to be longitudinally displaceable and the electroactive polymer actuator cooperating directly or indirectly with the piston is integrated. In order to achieve a separate, sealed installation of the polymer actuator, the installation space can be effectively sealed, for example, by means of a sealing disk or separating film inserted between two housing parts.
Als geeignetes Übertragungsmittel, mit dem die Stellbewegung des Polymeraktors auf das Bypassventil übertragbar ist, schließt das mechanische Koppelglied ein gelenkiges Gestänge ein. Bevorzugt sind zumindest einzelne Bauteile des Gestänges in dem Gehäuse des Abgasturboladers integriert, um so eine von äußeren Einflüssen geschützte Anordnung zu erreichen. Ideal ist eine vollständige Integration des mechanischen Koppelgliedes in dem Abgasturbolader.As a suitable transmission means, with which the adjusting movement of the polymer actuator is transferable to the bypass valve, the mechanical coupling member includes a hinged linkage. Preferably, at least individual components of the linkage are integrated in the housing of the exhaust gas turbocharger, so as to achieve a protected from external influences arrangement. Ideal is a complete integration of the mechanical coupling member in the exhaust gas turbocharger.
Weiterhin umfasst der erfindungsgemäße Aufbau des Stellmittels ein vorgespanntes Federelement, das, dem mechanischen Koppelglied zugeordnet, insbesondere mittelbar mit dem elektroaktiven Polymeraktor zusammenwirkt. Die Kraftrichtung des Federelements ist dabei entgegengesetzt zu einer Stellrichtung des Polymeraktors. Dadurch wird eine spielfreie Kraftübertragung zwischen dem Aktor und dem Bypassventil hergestellt, wodurch beispielsweise ein fertigungsbedingtes Spiel des Koppelgliedes ausgeglichen werden kann. Das Federelement kann außerdem die Funktion einer Failsafe-Einrichtung bzw. Ausfallsicherung ausüben, die bei einem Defekt und einem damit verbundenen stromlosen Zustand den elektroaktiven Polymeraktor in eine Ruhe- oder Neutralstellung verstellt, um das Bypassventil in die geöffnete Stellung zu bringen.Furthermore, the structure according to the invention of the actuating means comprises a prestressed spring element which, associated with the mechanical coupling element, cooperates in particular indirectly with the electroactive polymer actuator. The force direction of the spring element is opposite to a direction of the polymer actuator. As a result, a play-free power transmission between the actuator and the bypass valve is made, whereby, for example, a production-related game of the coupling member can be compensated. The spring element can also perform the function of a fail-safe device or fail-safe, which adjusts the electroactive polymer actuator in a rest or neutral position at a defect and an associated de-energized state to bring the bypass valve in the open position.
Für die einzelnen Bauteile der erfindungsgemäßen Stellvorrichtung ist eine Werkstoffauswahl vorgesehen, die alle Erfordernisse hinsichtlich Festigkeit und Temperaturbeständigkeit erfüllt und außerdem unter dem Gesichtspunkt Leichtbau erfolgt. Somit kann beispielsweise als Werkstoff für die Kolbenzylindereinheit eine hochtemperaturstabile Leichtmetalllegierung vorgesehen werden. Die Bauteile des mechanischen Koppelgliedes sind bevorzugt aus Stahlblech durch einen Umformprozess hergestellt. Alternativ dazu sind gemäß der Erfindung auch einzelne Bauteile der Stellvorrichtung aus einem geeigneten Kunststoff herstellbar.For the individual components of the adjusting device according to the invention a material selection is provided, which meets all requirements in terms of strength and temperature resistance and also takes place from the point of lightweight construction. Thus, for example, be provided as a material for the piston-cylinder unit, a high temperature stable light metal alloy. The components of the mechanical coupling member are preferably made of sheet steel by a forming process. Alternatively, according to the invention, individual components of the adjusting device can be produced from a suitable plastic.
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung der Figuren, in denen Ausführungsbeispiele der Erfindung dargestellt sind, wobei sich die Erfindung nicht auf die abgebildeten Ausführungsbeispiele beschränkt. Dabei zeigt:Further features of the invention will become apparent from the following description of the figures, in which embodiments of the invention are shown, wherein the invention is not limited to the illustrated embodiments. Showing:
Die
Die
Das in
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Gemäß
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Stellvorrichtunglocking device
- 22
- Bypassventilbypass valve
- 33
- Abgasturboladerturbocharger
- 44
- Turbinengehäuseturbine housing
- 55
- Verdichtergehäusecompressor housing
- 6a bis 6e6a to 6e
- Stellmittelactuating means
- 77
- Koppelgliedcoupling member
- 8a, 8b8a, 8b
- KolbenzylindereinheitPiston-cylinder unit
- 9a bis 9e9a to 9e
- Gehäusecasing
- 1010
- Kolbenpiston
- 11a bis 11e11a to 11e
- Polymeraktorpolymer actuator
- 1212
- Bodenground
- 1313
- Gestängelinkage
- 1414
- Schwenkhebelpivoting lever
- 1515
- Polymerfoliepolymer film
- 1616
- Elektrodeelectrode
- 1717
- Gegenelektrodecounter electrode
- 1818
- Zuführverbindungsupply joint
- 1919
- Gehäusecasing
- 2020
- Dichtscheibesealing washer
- 21a, 21b21a, 21b
- Federmittelspring means
- 2222
- Kolbenstangepiston rod
- 2323
- Sprengringsnap ring
- 2424
- Polymerkörperpolymer body
- 2525
- Polymerkörperpolymer body
- 2626
- Ausnehmungrecess
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102007009267 A1 [0004] DE 102007009267 A1 [0004]
- DE 102008011416 A1 [0004] DE 102008011416 A1 [0004]
- DE 102005023260 A1 [0004] DE 102005023260 A1 [0004]
- WO 2007029275 A1 [0008] WO 2007029275 A1 [0008]
- DE 102009012626 A1 [0008] DE 102009012626 A1 [0008]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201210215548 DE102012215548A1 (en) | 2012-09-03 | 2012-09-03 | Adjusting device for bypass valve of exhaust gas turbocharger of internal combustion engine of vehicle, has adjusting unit provided with electroactive polymer actuator and connected with bypass valve through mechanical coupling element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210215548 DE102012215548A1 (en) | 2012-09-03 | 2012-09-03 | Adjusting device for bypass valve of exhaust gas turbocharger of internal combustion engine of vehicle, has adjusting unit provided with electroactive polymer actuator and connected with bypass valve through mechanical coupling element |
Publications (1)
Publication Number | Publication Date |
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DE102012215548A1 true DE102012215548A1 (en) | 2014-03-06 |
Family
ID=50098357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE201210215548 Withdrawn DE102012215548A1 (en) | 2012-09-03 | 2012-09-03 | Adjusting device for bypass valve of exhaust gas turbocharger of internal combustion engine of vehicle, has adjusting unit provided with electroactive polymer actuator and connected with bypass valve through mechanical coupling element |
Country Status (1)
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DE (1) | DE102012215548A1 (en) |
Cited By (11)
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EP2916364A1 (en) * | 2014-03-07 | 2015-09-09 | Alcatel Lucent | Translation apparatus for moving an object outside a housing of the translation apparatus, translation system and rf component for mobile communication thereof |
DE102014211432A1 (en) * | 2014-06-16 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | linear actuator |
DE102014211433A1 (en) * | 2014-06-16 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | linear actuator |
DE102014108678A1 (en) * | 2014-06-20 | 2015-12-24 | Bürkert Werke GmbH | spool valve |
DE102014223563A1 (en) * | 2014-11-19 | 2016-05-19 | Robert Bosch Gmbh | Hydrostatic displacement machine with adjustable displacement and method for adjusting the displacement |
DE102014224697A1 (en) * | 2014-12-03 | 2016-06-09 | Zf Friedrichshafen Ag | Gear selector for a transmission |
US20160341113A1 (en) * | 2010-01-16 | 2016-11-24 | Borgwarner Inc. | Turbocharger control linkage with reduced heat flow |
DE102015113164A1 (en) * | 2015-08-10 | 2017-02-16 | Bürkert Werke GmbH | Fluidic control |
DE102017120131A1 (en) * | 2017-09-01 | 2019-03-07 | Bürkert Werke GmbH & Co. KG | Foil converter and valve |
WO2021103464A1 (en) * | 2019-11-29 | 2021-06-03 | 台州尚瑞特进出口有限公司 | Anti-backflow faucet |
WO2022189509A1 (en) * | 2021-03-12 | 2022-09-15 | Zf Friedrichshafen Ag | Arrangement comprising a selector lever of an automatic gearbox of a vehicle |
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DE102005023260A1 (en) | 2005-05-20 | 2006-11-23 | Daimlerchrysler Ag | Regulating process for exhaust gas supercharger involves using quotient from air mass flow and compression ratio at compressor as guide value |
WO2007029275A1 (en) | 2005-09-05 | 2007-03-15 | Federico Carpi | Electroactive polymer based actuator, sensor and generator with folded configuration |
DE102007009267A1 (en) | 2006-02-27 | 2007-09-20 | Borgwarner Inc., Auburn Hills | Turbocharger, has shut-off valve arranged in conduit and actuated by actuator, where actuator has main spool, starting spool and circular permanent magnet which is arranged between main spool and starting spool |
DE102008011416A1 (en) | 2008-02-27 | 2009-09-10 | Continental Automotive Gmbh | Turbocharger with an actuator for opening and closing a wastegate duct |
DE102009012626A1 (en) | 2009-03-11 | 2010-09-16 | Schaeffler Technologies Gmbh & Co. Kg | Linear guide with braking device |
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