EP0986696B1 - Valve system for a valve-controlled combustion engine - Google Patents
Valve system for a valve-controlled combustion engine Download PDFInfo
- Publication number
- EP0986696B1 EP0986696B1 EP98928335A EP98928335A EP0986696B1 EP 0986696 B1 EP0986696 B1 EP 0986696B1 EP 98928335 A EP98928335 A EP 98928335A EP 98928335 A EP98928335 A EP 98928335A EP 0986696 B1 EP0986696 B1 EP 0986696B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- valve
- valve arrangement
- stator
- sheets
- 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.)
- Expired - Lifetime
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims abstract 2
- 238000004804 winding Methods 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2105—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids comprising two or more coils
Definitions
- the present invention relates to a valve arrangement for a valve-controlled internal combustion engine.
- a valve arrangement in which the rear and movement of the valve member not by a camshaft is effected and controlled. Rather, the invention Arrangement of an electrically operated valve drive used.
- JP-A-3-92518 is a drive device for a Valve arrangement in internal combustion engines, in which the Stator is made up of two approximately semi-cylindrical shells, the both in the circumferential and longitudinal directions of each The shell has split teeth facing the rotor.
- the individual teeth of each shell are each of a winding surrounded, whose central longitudinal axis runs in the radial direction.
- a matching design of the stand, the stator coils and the rotor of a drive device for a valve assembly in internal combustion engines is in the US 5,129,369. Again are radial and tangential The teeth of the stand divided in the direction of surrounded a winding, the central longitudinal axis in radial Direction runs.
- EP 0 485 231 A1 also shows a similar type of design of the stator, the stator coils and the rotor one Drive device for a valve arrangement in internal combustion engines.
- the stator, the stator coils and the rotor one Drive device for a valve arrangement in internal combustion engines are in the radial and tangential directions divided teeth of the stand each by a radially oriented Surrounded winding.
- the invention teaches a valve arrangement for a valve-controlled internal combustion engine, with an electric linear motor as an actuator for a valve member, which is defined by the features of claim 1.
- This arrangement enables a very small pole pitch of the Linear motor, so that a very high force density can be realized is.
- the force generated by the linear motor can be adjusted exactly along the stroke of the valve member. So it is not necessary to use the valve member with considerable to apply kinetic energy so this takes its final position. This means considerably less Energy required to actuate the valve member is than in the arrangements known from the prior art. This also means a significantly lower noise level and less wear.
- the stator winding By arranging the stator winding, it is possible to keep vibrations acting on the winding low, so that vibrations of the winding or friction of the winding on the Sheets are low. It is possible with minimal insulation material or lining material of the winding chamber get along. This also contributes to compactness and reliability of the overall arrangement. It also causes a high one Power density even with small linear motors because of the fill factor the winding chamber (winding volume in the winding chamber based on the total volume of the winding chamber) is high.
- the sheets preferably have at least one recess, which contains iron material for connecting the sheets.
- This Iron material can be formed by (packed) iron wires that penetrate the sheets across their surface. alternative the iron material can also be caused by iron particles be formed by means of synthetic resin or the like. in the recesses the sheets are pressed.
- the invention enables the construction of an actuator in which the at least one winding over its entire extent contributes to the effective generation of force in the linear motor.
- the winding has no end windings, such as this is the case with conventional engines.
- the reason for this is that the winding is completely between the sheets of the Stator is included in the winding chambers and the winding neither in the axial direction nor in the radial direction protrudes beyond the teeth of the stand.
- the valve arrangement according to the invention thus has an actuator, compared to a conventional engine, significantly less Copper to generate a comparable magnetic field having.
- the rotor can be an asynchronous rotor or Synchronous rotor, or specifically designed as a reluctance rotor his.
- Valve arrangement is the rotor with a sensor for path detection, preferably coupled to a moving coil arrangement.
- Actuator also a partial stroke of the valve arrangement is possible. This partial stroke can be detected via the sensor.
- Runner can be coupled to a resonance spring arrangement.
- the rotor is preferred as a hybrid rotor with an iron body are used in the copper or aluminum tires, designed.
- the invention relates to an internal combustion engine with at least one combustion cylinder, with at least a valve assembly for intake or exhaust valves with one or more of the above features.
- valve arrangement for a valve controlled Internal combustion engine schematically illustrated in longitudinal section.
- An electric linear motor 10 is used in the invention Valve arrangement as an actuator for a valve member 12.
- the Linear motor 10 has one with the valve member 12 via a Rod 14 coupled rotor 16 and a stand 18th
- the stand 18 is constructed from circular iron sheets 20, whose surface is perpendicular to the direction of movement B of the Runner 16 is oriented.
- the stand 18 faces the rotor 16 facing teeth 22, each having a closed, the Runner 16 have facing surface.
- the individual teeth 22 a circular cylindrical surface.
- oval sheets or sheets with a polygonal shape for Structure of the stand 18 to use.
- the stator 18 has stator windings 24 that are parallel are oriented to the surface of the sheets 20. To do this, some have the sheets 20 have a smaller diameter than those Sheets that form the teeth 22. So that are each between two adjacent teeth 22 open to the outside Winding chambers 26 are formed, in each of which one 18 concentric winding to the central longitudinal axis of the stator 24 is located.
- each of the sheets 20 has a recess 30 in the polymorphic iron material or packed iron wires for magnetic connection of the sheets is included.
- each winding 24 over its entire extent in the Winding chamber is arranged, it also carries over its entire Length for effective force generation in the linear motor at.
- the rotor 16 is a hollow cylindrical one Eisenring, the one on the stand 18 facing Has inner recesses axially spaced from each other, in which copper or aluminum rings 34 are added are.
- the rotor 16 thus works as a hybrid rotor.
- the rotor is on the end face facing away from the valve member 12 16 with a sensor 36 for path detection of the rotor 16 in the direction of movement B coupled.
- the rotor 16 is against the housing 40 with a resonance spring arrangement 42 supported.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Ventilanordnung für einen ventilgesteuerten Verbrennungsmotor. Insbesondere betrifft die Erfindung eine Ventilanordnung, bei der die Hin- und Herbewegung des Ventilgliedes nicht durch eine Nockenwelle bewirkt und gesteuert wird. Vielmehr wird bei der erfindungsgemäßen Anordnung ein elektrisch betätigter Ventilantrieb eingesetzt.The present invention relates to a valve arrangement for a valve-controlled internal combustion engine. In particular concerns the invention a valve arrangement in which the rear and movement of the valve member not by a camshaft is effected and controlled. Rather, the invention Arrangement of an electrically operated valve drive used.
Derartige elektrisch betätigte Ventilanordnungen sind in den unterschiedlichsten Ausgestaltungen im Stand der Technik bekannt.Such electrically operated valve assemblies are in the various designs known in the prior art.
Die DE 30 19 109 A1 beschreibt eine Ventilanordnung, die auf einem Linearmotor zur Betätigung der Ventile beruht. Der Linearmotor wird dabei in. Abhängigkeit von einem oder mehreren Motorparametern (Drehzahl, Kraftstoffmenge etc.) durch einen Microprozessor gesteuert. Allerdings sind keinerlei Hinweise zur Ausgestaltung des Linearmotors in diesem Dokument zu finden.DE 30 19 109 A1 describes a valve arrangement based on a linear motor for actuating the valves. The linear motor is dependent on one or more Engine parameters (speed, fuel quantity etc.) by a Microprocessor controlled. However, there are no indications to find the design of the linear motor in this document.
Aus der DE 195 18 056 A1 ist eine Gasventilsteuerung mit einem Gaswechselventil bekannt, das durch eine Elektromagnetanordnung betätigt wird. Dabei wird durch eine besondere Ausgestaltung des Polschenkels der Elektromagnetanordnung ein auf die Bewegung des Ankers bezogenes Signal in der Ansteuerleitung der Elektromagnetanordnung erzeugt. Dieses Signal kann ausgewertet werden, um beliebige Ankerpositionen ohne zusätzliche Sensoren zu erkennen. Ein großes Problem beim Einsatz einer Elektromagnetanordnung zur Betätigung des Ventils ist die hohe Geräuschentwicklung beim Erreichen der jeweiligen Endstellungen, das abrupte Abbremsen beim Erreichen der Endstellungen sowie die erforderlichen hohen Halteströme. DE 195 18 056 A1 describes a gas valve control with a Gas exchange valve known by an electromagnet arrangement is operated. A special Design of the pole leg of the electromagnet assembly signal related to the movement of the armature in the control line generated the electromagnet assembly. This signal can be evaluated to any anchor positions without detect additional sensors. A big problem with Use of an electromagnet arrangement to actuate the valve is the high noise level when the respective one is reached End positions, the abrupt braking when reaching of the end positions and the required high holding currents.
Gleiches gilt für ebenfalls verschiedentlich vorgeschlagene Differential-Elektromagnetanordnungen, die zum Erreichen des erforderlichen Schubes von etwa 300 - 400 N für PKW-Verbrennungsmotoren gezielt mit ansteigenden Strömen beaufschlagt werden. Damit führt das durch eine Federanordnung belastete Ventil zunächst eine Schwingbewegung aus, bevor eine an dem Ventilschaft angeordnete Eisenplatte an dem Anker der Elektromagnetanordnung anliegt, so daß ein sehr viel geringerer Haltestrom erforderlich ist. Allerdings ist hierbei die maximale Drehzahl des Motors erheblich begrenzt. Die Anlaufzeit beim Start ist relativ hoch, da es wegen der notwendigen hohen dynamischen Kraft einige Zeit dauert, bis sich die Ventilanordnung in ihre gewünschte Stellung geschwungen hat.The same applies to those also proposed in various ways Differential electromagnet assemblies that are used to achieve the required thrusts of about 300 - 400 N for car internal combustion engines targeted with increasing currents become. This leads to the loading of a spring arrangement Valve first oscillates before one iron plate arranged on the valve stem on the armature of the Solenoid arrangement is present, so that a much smaller Holding current is required. However, this is the maximum engine speed significantly limited. The start-up time the start is relatively high as it is necessary because of the high dynamic force takes some time until the valve assembly has swung into its desired position.
Weitere Dokumente ohne Anspruch auf Vollständigkeit, die
technischen Hintergrund für die Erfindung zeigen, sind:
Alle Konzepte, die in den vorstehend genannten Dokumenten beschrieben sind, haben gemeinsam, daß bei ihnen wenigstens eines der oben erwähnten Probleme besteht. Darüber hinaus können mit den im Stand der Technik bekannten Anordnungen auch der für Ventilanordnungen in Verbrennungsmotoren erforderliche Hub, Schub und Dynamik bei ausreichend kompaktem Aufbau und Zuverlässigkeit für den Groß-Serien-Einsatz im KFZ-Motoren nicht erreicht werden. All concepts described in the above documents have in common that they have at least one of the problems mentioned above. In addition, you can with the arrangements known in the prior art also that required for valve arrangements in internal combustion engines Stroke, thrust and dynamics with a sufficiently compact structure and reliability for large series use in automotive engines cannot be reached.
Aus der JP-A-3-92518 ist eine Antriebseinrichtung für eine Ventilanordnung in Verbrennungsmotoren bekannt, bei der der Stator aus zwei etwa halbzylindrischen Schalen aufgebaut ist, die sowohl in Umfangsrichtung als auch in Längsrichtung jeder Schale geteilte, dem Läufer zugewandte Zähne aufweisen. Die einzelnen Zähne jeder Schale sind jeweils von einer Wicklung umgeben, deren Mittellängsachse in radialer Richtung verläuft.From JP-A-3-92518 is a drive device for a Valve arrangement in internal combustion engines is known, in which the Stator is made up of two approximately semi-cylindrical shells, the both in the circumferential and longitudinal directions of each The shell has split teeth facing the rotor. The individual teeth of each shell are each of a winding surrounded, whose central longitudinal axis runs in the radial direction.
Dadurch ergibt sich ein in radialer Richtung orientierter magnetischer Fluß, der ausgehend von jedem einzelnen der Vielzahl von Zähnen, durch den Luftspalt zwischen Ständer und Läufer, in den Läufer fließt.This results in a magnetic orientation oriented in the radial direction River that emanates from each one of the multitude of teeth, through the air gap between the stand and Runner into which runner flows.
Eine insoweit übereinstimmende Ausgestaltung des Ständers, der Ständerspulen und des Läufers einer Antriebseinrichtung für eine Ventilanordnung in Verbrennungsmotoren ist in der US 5,129,369 beschrieben. Auch hier sind in radialer und tangentialer Richtung unterteilte Zähne des Ständers jeweils von einer Wicklung umgeben, deren Mittellängsachse in radialer Richtung verläuft.A matching design of the stand, the stator coils and the rotor of a drive device for a valve assembly in internal combustion engines is in the US 5,129,369. Again are radial and tangential The teeth of the stand divided in the direction of surrounded a winding, the central longitudinal axis in radial Direction runs.
Auch die EP 0 485 231 A1 zeigt eine ähnliche Art der Gestaltung des Ständers, der Ständerspulen und des Läufers einer Antriebseinrichtung für eine Ventilanordnung in Verbrennungsmotoren. Auch hier sind in radialer und tangentialer Richtung unterteilte Zähne des Ständers jeweils von einer radial orientierten Wicklung umgeben.EP 0 485 231 A1 also shows a similar type of design of the stator, the stator coils and the rotor one Drive device for a valve arrangement in internal combustion engines. Here, too, are in the radial and tangential directions divided teeth of the stand each by a radially oriented Surrounded winding.
Diese Anordnungen sind in der Herstellung sehr aufwendig, da die Montage der Wicklungen um die einzelnen Zähne schwierig zu bewerkstelligen ist. Außerdem ist die bei diesem Aufbau erzielbare Polteilung relativ groß. These arrangements are very expensive to manufacture because the assembly of the windings around the individual teeth difficult is to be accomplished. In addition, this is the structure achievable pole pitch relatively large.
Zur Behebung dieser Nachteile lehrt die Erfindung eine Ventilanordnung für einen ventilgesteuerten Verbrennungsmotor, mit einem elektrischen Linearmotor als Aktuator für ein Ventilglied, der durch die Merkmale des Anspruchs 1 definiert ist.To overcome these disadvantages, the invention teaches a valve arrangement for a valve-controlled internal combustion engine, with an electric linear motor as an actuator for a valve member, which is defined by the features of claim 1.
Diese Anordnung ermöglicht eine sehr kleine Polteilung des Linearmotors, so daß eine sehr hohe Kraftdichte realisierbar ist. Außerdem kann die durch den Linearmotor erzeugte Kraft entlang des Hubweges des Ventilgliedes genau eingestellt werden. Damit ist es nicht erforderlich, das Ventilglied mit erheblicher kinetischer Energie zu beaufschlagen, damit dieses seine Endstellung einnimmt. Dies bedeutet, daß erheblich weniger Energie zur Betätigung des Ventilgliedes erforderlich ist, als bei den aus dem Stand der Technik bekannten Anordnungen. Dies bedeutet auch eine deutlich geringere Geräuschentwicklung und weniger Verschleiß.This arrangement enables a very small pole pitch of the Linear motor, so that a very high force density can be realized is. In addition, the force generated by the linear motor can be adjusted exactly along the stroke of the valve member. So it is not necessary to use the valve member with considerable to apply kinetic energy so this takes its final position. This means considerably less Energy required to actuate the valve member is than in the arrangements known from the prior art. This also means a significantly lower noise level and less wear.
Durch die Anordnung der Ständerwicklung ist es möglich, die auf die Wicklung wirkenden Rüttelkräfte gering zu halten, so daß Vibrationen der Wicklung oder Reibung der Wicklung an den Blechen gering sind. Damit ist es möglich, mit minimalem Isolationsmaterial bzw. Auskleidungsmaterial der Wicklungskammer auszukommen. Auch dies trägt zur Kompaktheit und Zuverlässigkeit der Gesamtanordnung bei. Außerdem bewirkt dies eine hohe Leistungsdichte auch bei kleinen Linearmotoren, da der Füllfaktor der Wicklungskammer (Wicklungsvolumen in der Wicklungskammer bezogen auf das Gesamtvolumen der Wicklungskammer) hoch ist.By arranging the stator winding, it is possible to to keep vibrations acting on the winding low, so that vibrations of the winding or friction of the winding on the Sheets are low. It is possible with minimal insulation material or lining material of the winding chamber get along. This also contributes to compactness and reliability of the overall arrangement. It also causes a high one Power density even with small linear motors because of the fill factor the winding chamber (winding volume in the winding chamber based on the total volume of the winding chamber) is high.
Bevorzugt weisen die Bleche wenigstens eine Ausnehmung auf, die Eisenmaterial zur Verbindung der Bleche enthält. Dieses Eisenmaterial kann durch (gepackte) Eisendrähte gebildet sein, die die Bleche quer zu deren Fläche durchdringen. Alternativ dazu kann das Eisenmaterial auch durch Eisenpartikel gebildet sein, die mittels Kunstharz oder dergl. in den Ausnehmungen der Bleche verpreßt sind. The sheets preferably have at least one recess, which contains iron material for connecting the sheets. This Iron material can be formed by (packed) iron wires that penetrate the sheets across their surface. alternative the iron material can also be caused by iron particles be formed by means of synthetic resin or the like. in the recesses the sheets are pressed.
Die Erfindung ermöglicht den Aufbau eines Aktuators, bei dem die wenigstens eine Wicklung über ihre gesamte Erstreckung zur effektiven Kraftbildung in dem Linearmotor beiträgt. Dies bedeutet, daß die Wicklung keine Wickelköpfe aufweist, wie dies bei herkömmlichen Motoren der Fall ist. Der Grund dafür ist, daß die Wicklung vollständig zwischen den Blechen des Ständers in den Wickelkammern aufgenommen ist und die Wicklung weder in axialer Richtung, noch in radialer Richtung über die Zähne des Ständers hinausragt.The invention enables the construction of an actuator in which the at least one winding over its entire extent contributes to the effective generation of force in the linear motor. This means that the winding has no end windings, such as this is the case with conventional engines. The reason for this is that the winding is completely between the sheets of the Stator is included in the winding chambers and the winding neither in the axial direction nor in the radial direction protrudes beyond the teeth of the stand.
Damit hat die Ventilanordnung gemäß der Erfindung einen Aktuator, der gegenüber einem herkömmlichen Motor erheblich weniger Kupfer zur Erzeugung eines vergleichbaren Magnetfeldes aufweist.The valve arrangement according to the invention thus has an actuator, compared to a conventional engine, significantly less Copper to generate a comparable magnetic field having.
Erfindungsgemäß kann der Läufer als Asynchronläufer oder als Synchronläufer, oder im speziellen als Reluktanzläufer ausgebildet sein.According to the invention, the rotor can be an asynchronous rotor or Synchronous rotor, or specifically designed as a reluctance rotor his.
In einer bevorzugten Ausführungsform der erfindungsgemäßen Ventilanordnung ist der Läufer mit einem Sensor zur Wegerfassung, vorzugsweise einer Tauchspulenanordnung gekoppelt.In a preferred embodiment of the invention Valve arrangement is the rotor with a sensor for path detection, preferably coupled to a moving coil arrangement.
Dies ist insbesondere deshalb vorteilhaft, weil mit dem erfindungsgemäßen Aktuator auch ein Teilhub der Ventilanordnung möglich ist. Dieser Teilhub kann über den Sensor erfaßt werden.This is particularly advantageous because with the invention Actuator also a partial stroke of the valve arrangement is possible. This partial stroke can be detected via the sensor.
Weiterhin kann bei der erfindungsgemäßen Ventilanordnung der Läufer mit einer Resonanzfederanordnung gekoppelt sein.Furthermore, in the valve arrangement according to the invention Runner can be coupled to a resonance spring arrangement.
Bevorzugt ist der Läufer als Hybridläufer, mit einem Eisenkörper in den Kupfer- oder Aluminiumreifen eingesetzt sind, ausgestaltet. The rotor is preferred as a hybrid rotor with an iron body are used in the copper or aluminum tires, designed.
Schließlich betrifft die Erfindung einen internen Verbrennungsmotor mit wenigstens einem Verbrennungszylinder, mit wenigstens einer Ventilanordnung für Ein- oder Auslaßventile mit einem oder mehreren der vorstehenden Merkmale.Finally, the invention relates to an internal combustion engine with at least one combustion cylinder, with at least a valve assembly for intake or exhaust valves with one or more of the above features.
Weitere Merkmale, Eigenschaften, Vorteile und mögliche Abwandlungen werden für einen Fachmann anhand der nachstehenden Beschreibung deutlich, in der auf die beigefügte Zeichnung Bezug genommen ist.Other features, properties, advantages and possible modifications are for a person skilled in the art based on the following Description clearly in the attached drawing Is referenced.
In der Zeichnung ist eine Ventilanordnung für einen ventilgesteuerten Verbrennungsmotor schematisch im Längsschnitt veranschaulicht.In the drawing is a valve arrangement for a valve controlled Internal combustion engine schematically illustrated in longitudinal section.
Ein elektrischer Linearmotor 10 dient bei der erfindungsgemäßen
Ventilanordnung als Aktuator für ein Ventilglied 12. Der
Linearmotor 10 hat einen mit dem Ventilglied 12 über eine
Stange 14 gekoppelten Läufer 16 und einen Ständer 18.An electric
Der Ständer 18 ist aus kreisrunden Blechen 20 aus Eisen aufgebaut,
deren Fläche senkrecht zur Bewegungsrichtung B des
Läufers 16 orientiert ist. Der Ständer 18 weist dem Läufer 16
zugewandte Zähne 22 auf, die jeweils eine geschlossene, dem
Läufer 16 zugewandte Mantelfläche haben. Im vorliegenden Beispiel
mit kreisrunden Blechen 20 haben die einzelnen Zähne 22
eine kreiszylindrische Mantelfläche. Es ist jedoch auch möglich,
ovale Bleche oder Bleche mit polygonaler Gestalt zum
Aufbau des Ständers 18 zu verwenden.The
Der Ständer 18 weist Ständer-Wicklungen 24 auf, die parallel
zu der Fläche der Bleche 20 orientiert sind. Dazu haben einzelne
der Bleche 20 einen geringeren Durchmesser als diejenigen
Bleche, welche die Zähne 22 bilden. Damit sind jeweils
zwischen zwei benachbarten Zähnen 22 zur Außenseite hin offene
Wicklungskammern 26 gebildet, in denen sich jeweils eine
zur Mittellängsachse des Ständers 18 konzentrische Wicklung
24 befindet. Die Art der Verschaltung der einzelnen Wicklungen
24 bzw. deren Beaufschlagen mit elektrischem Strom ist
von der gewünschten Art des Motors (Ein- oder Mehrphasenmotor)
abhängig.The
In der Mitte hat jedes der Bleche 20 eine Ausnehmung 30 in
der polymorphes Eisenmaterial oder gepackte Eisendrähte zur
magnetischen Verbindung der Bleche enthalten ist.In the middle, each of the
Da jede Wicklung 24 über ihre gesamte Erstreckung in der Wicklungskammer angeordnet ist, trägt sie auch über ihre gesamte Länge zur effektiven Kraftbildung in dem Linearmotor bei.Since each winding 24 over its entire extent in the Winding chamber is arranged, it also carries over its entire Length for effective force generation in the linear motor at.
In der gezeigten Anordnung ist der Läufer 16 ein hohlzylindrischer
Eisenring, der an seiner dem Ständer 18 zugewandten
Innenfläche voneinander axial beabstandete Ausnehmungen aufweist,
in denen Kupfer- oder Aluminiumringe 34 aufgenommen
sind. Damit arbeitet der Läufer 16 als Hybridläufer.In the arrangement shown, the
An der dem Ventilglied 12 abgewandten Stirnseite ist der Läufer
16 mit einem Sensor 36 zur Wegerfassung des Läufers 16 in
der Bewegungsrichtung B gekoppelt.The rotor is on the end face facing away from the
Der Läufer 16 ist gegen das Gehäuse 40 mit einer Resonanzfederanordnung
42 abgestützt.The
Claims (8)
- A valve arrangement for a valve-controlled combustion engine with an electrical linear motor (10) as an actuator for a valve member, which comprisesa rotor (16) which is coupled with a valve member (12) anda stator (18), withthe stator (18) being constructed of metal sheets (20) the plane of which is oriented perpendicularly to the movement direction (B) of the rotor (16), andthe stator (18) comprising teeth (22) facing the rotor (16) each of which having a closed cylinder jacket surface facing the rotor (16), and withwinding chambers (26) being formed between each two neighbouring teeth (22) of the stator (18) within which one winding (24) each is arranged which is oriented parallel to the plane of the sheets (20).
- The valve arrangement according to Claim 1, with the sheets (20) comprising at least one recess (30) which contains iron material for the connection of the sheets (20).
- The valve arrangement according to Claim 1, with the at least one winding (24) contributing over its entire extension to the effective force generation in the linear motor (10).
- The valve arrangement according to Claim 1, with the rotor (16) being designed as an asynchronous rotor, or as a synchronours rotor, or as a reluctance rotor.
- The valve arrangement according to Claim 1, with the rotor (16) being coupled with a sensor for travel sensing, preferably with a plunger-type coil arrangement (36).
- The valve arrangement according to Claim 1, with the rotor (16) being coupled with a resonance spring arrangement (42).
- The valve arrangement according to Claim 1, with the rotor being designed as a hybrid rotor with an iron body (16) into which copper or aluminium bands (34) are inserted.
- An internal combustion engine with at least one cumbustion cylinder which comprises at least one valve arrangement with the characteristics of one or several of the previous claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19723923 | 1997-06-06 | ||
| DE19723923A DE19723923C2 (en) | 1997-06-06 | 1997-06-06 | Valve arrangement for a valve-controlled internal combustion engine |
| PCT/EP1998/003212 WO1998055741A1 (en) | 1997-06-06 | 1998-05-29 | Valve system for a valve-controlled combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0986696A1 EP0986696A1 (en) | 2000-03-22 |
| EP0986696B1 true EP0986696B1 (en) | 2002-03-27 |
Family
ID=7831698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98928335A Expired - Lifetime EP0986696B1 (en) | 1997-06-06 | 1998-05-29 | Valve system for a valve-controlled combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0986696B1 (en) |
| JP (1) | JP2002506499A (en) |
| DE (2) | DE19723923C2 (en) |
| WO (1) | WO1998055741A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2784712B1 (en) * | 1998-10-15 | 2001-09-14 | Sagem | ELECTROMAGNETIC VALVE OPERATION METHOD AND DEVICE |
| DE19910065C1 (en) * | 1999-03-08 | 2000-07-20 | Gruendl & Hoffmann | Internal combustion engine with control valve arrangement(s) has electric linear motor as valve element actuator, hollow cylindrical stator and rotor; rotor is coupled to valve element |
| DE19928560C2 (en) * | 1999-06-22 | 2002-02-07 | Bayerische Motoren Werke Ag | Torque control system for internal combustion engines in motor vehicles with an actuating device for variable valve control |
| DE10044789C2 (en) * | 2000-09-11 | 2003-06-12 | Compact Dynamics Gmbh | Driving device of a gas exchange valve for a valve-controlled internal combustion engine |
| DE10035973C2 (en) * | 2000-07-24 | 2003-06-05 | Compact Dynamics Gmbh | Gas exchange valve for a valve-controlled internal combustion engine |
| DE50106532D1 (en) | 2000-07-24 | 2005-07-21 | Compact Dynamics Gmbh | GAS CHANGING VALVE DRIVE FOR A VALVE CONTROLLED INTERNAL COMBUSTION ENGINE |
| DE10062823A1 (en) * | 2000-12-15 | 2002-07-04 | Bob Bobolowski Gmbh | Multi-phase and multi-pole synchronous moving coil motor |
| EP1536108A1 (en) * | 2003-11-24 | 2005-06-01 | Siemens Aktiengesellschaft | Linear valve drive |
| DE102004042925A1 (en) * | 2004-09-02 | 2006-03-09 | Heinz Leiber | Actuated electro-magnetic/electromotive operating actuator coupling device for motor vehicle, has leaf spring loading force on movable unit e.g. valve stem and rotor directly loading force on free ends of stem, in spring`s moving directions |
| DE102005017482B4 (en) * | 2005-04-15 | 2007-05-03 | Compact Dynamics Gmbh | Gas exchange valve actuator for a valve-controlled internal combustion engine |
| DE102005017481B4 (en) | 2005-04-15 | 2007-08-30 | Compact Dynamics Gmbh | Linear Actuator |
| DE102005056860A1 (en) | 2005-11-29 | 2007-05-31 | GM Global Technology Operations, Inc., Detroit | Fuel tank made of synthetic material for motor vehicles e.g. for passenger vehicles, has opening and swirl pot which is arranged in interior of container whereby edge of opening is firmly connected with edge of swirl pot |
| CN110656995B (en) * | 2019-11-08 | 2021-01-15 | 江苏科技大学 | Combined type electromagnetic drive fully-variable valve actuating mechanism applied to internal combustion engine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1591421A (en) * | 1977-01-12 | 1981-06-24 | Lucas Industries Ltd | Valve operating mechanism |
| US4533890A (en) * | 1984-12-24 | 1985-08-06 | General Motors Corporation | Permanent magnet bistable solenoid actuator |
| US4810914A (en) * | 1987-03-26 | 1989-03-07 | International Business Machines Corporation | Linear actuator with multiple closed loop flux paths essentially orthogonal to its axis |
| JP2639587B2 (en) * | 1989-03-30 | 1997-08-13 | 株式会社いすゞセラミックス研究所 | Valve stepping drive |
| JP2709742B2 (en) * | 1989-12-20 | 1998-02-04 | 株式会社いすゞセラミックス研究所 | Electromagnetic valve drive |
| JPH04175408A (en) * | 1990-11-08 | 1992-06-23 | Isuzu Ceramics Kenkyusho:Kk | Solenoid valve driving device |
| DE19518056B4 (en) * | 1995-05-17 | 2005-04-07 | Fev Motorentechnik Gmbh | Device for controlling the armature movement of an electromagnetic switching device and method for driving |
| DE19722632A1 (en) * | 1997-05-30 | 1998-12-03 | Schaeffler Waelzlager Ohg | Drive for periodically actuating at least one valve in internal combustion engine |
-
1997
- 1997-06-06 DE DE19723923A patent/DE19723923C2/en not_active Expired - Fee Related
-
1998
- 1998-05-29 DE DE59803523T patent/DE59803523D1/en not_active Expired - Fee Related
- 1998-05-29 JP JP50144999A patent/JP2002506499A/en active Pending
- 1998-05-29 WO PCT/EP1998/003212 patent/WO1998055741A1/en active IP Right Grant
- 1998-05-29 EP EP98928335A patent/EP0986696B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002506499A (en) | 2002-02-26 |
| WO1998055741A1 (en) | 1998-12-10 |
| DE19723923A1 (en) | 1998-12-10 |
| EP0986696A1 (en) | 2000-03-22 |
| DE59803523D1 (en) | 2002-05-02 |
| DE19723923C2 (en) | 2000-06-21 |
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