WO1998055741A1 - Valve system for a valve-controlled combustion engine - Google Patents

Valve system for a valve-controlled combustion engine Download PDF

Info

Publication number
WO1998055741A1
WO1998055741A1 PCT/EP1998/003212 EP9803212W WO9855741A1 WO 1998055741 A1 WO1998055741 A1 WO 1998055741A1 EP 9803212 W EP9803212 W EP 9803212W WO 9855741 A1 WO9855741 A1 WO 9855741A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
valve
valve arrangement
sheets
stator
Prior art date
Application number
PCT/EP1998/003212
Other languages
German (de)
French (fr)
Inventor
Andreas GRÜNDL
Bernhard Hoffmann
Alfred Krappel
Ullrich Masberg
Original Assignee
Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen
Bayerische Motorenwerke Aktiengesellschaft
Isad Electronic Systems Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen, Bayerische Motorenwerke Aktiengesellschaft, Isad Electronic Systems Gmbh & Co. Kg filed Critical Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen
Priority to JP50144999A priority Critical patent/JP2002506499A/en
Priority to DE59803523T priority patent/DE59803523D1/en
Priority to EP98928335A priority patent/EP0986696B1/en
Publication of WO1998055741A1 publication Critical patent/WO1998055741A1/en

Links

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.
  • the invention relates to a valve arrangement in which the reciprocating movement of the valve member is not effected and controlled by a camshaft. Rather, an electrically operated valve drive is used in the arrangement according to the invention.
  • DE 30 19 109 AI describes a valve arrangement which is based on a linear motor for actuating the valves.
  • the linear motor is controlled by a microprocessor depending on one or more motor parameters (speed, fuel quantity, etc.). However, no information on the design of the linear motor can be found in this document.
  • a gas valve control with a gas exchange valve which is actuated by an electromagnet arrangement.
  • a special configuration of the pole leg of the electromagnet arrangement generates a signal related to the movement of the armature in the control line of the electromagnet arrangement. This signal can be evaluated to identify any anchor position without additional sensors.
  • a major problem when using an electromagnet arrangement for actuating the valve is the high level of noise when the respective end positions are reached, the abrupt braking when the end positions are reached and the high holding currents required.
  • differential electromagnet arrangements which are also proposed in various ways and which are subjected to increasing currents in a targeted manner in order to achieve the required thrust of approximately 300-400 N for car internal combustion engines.
  • the valve which is loaded by a spring arrangement, therefore initially carries out an oscillating movement before an iron plate arranged on the valve stem bears against the armature of the electromagnet arrangement, so that a much lower holding current is required.
  • the maximum engine speed is considerably limited.
  • the start-up time is relatively long since it takes some time for the valve assembly to swing into its desired position due to the high dynamic force required.
  • EP 0 485 231 AI also shows a similar type of design of the stator, the stator coils and the rotor of a drive device for a valve arrangement in internal combustion engines.
  • teeth of the stator divided in the radial and tangential directions are each surrounded by a radially oriented 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 achieved.
  • the force generated by the linear motor can be precisely adjusted along the stroke of the valve member. It is therefore not necessary to apply considerable kinetic energy to the valve member so that it takes on its end position. This means that considerably less energy is required to actuate the valve member than in the arrangements known from the prior art. This also means significantly less noise and less wear.
  • the arrangement of the stator winding makes it possible to keep the vibrating forces acting on the winding low, so that vibrations of the winding or friction of the winding on the metal sheets are low. This makes it possible to make do with minimal insulation material or lining material of the winding chamber. This also contributes to the compactness and reliability of the overall arrangement. This also results in a high power density even with small linear motors, since the filling factor of the winding chamber (winding volume in the winding chamber in relation to 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.
  • the iron material can also be formed by iron particles which are pressed into the recesses in the metal sheets by means of synthetic resin or the like.
  • the invention enables the construction of an actuator in which the at least one winding contributes over its entire extent to the effective generation of force in the linear motor. This means that the winding has no end windings, as is the case with conventional motors. The reason for this is that the winding is completely accommodated between the sheets of the stator in the winding chambers and the winding does not protrude beyond the teeth of the stator in the axial direction or in the radial direction.
  • the valve arrangement according to the invention thus has an actuator which, compared to a conventional motor, has considerably less copper for generating a comparable magnetic field.
  • the rotor can be designed as an asynchronous rotor or as a synchronous rotor, or in particular as a reluctance rotor.
  • Valve arrangement the rotor is coupled to a sensor for path detection, preferably a moving coil arrangement.
  • the rotor can be coupled to a resonance spring arrangement.
  • the runner is preferably designed as a hybrid runner with an iron body in which copper or aluminum tires are inserted.
  • the invention relates to an internal combustion engine with at least one combustion cylinder, with at least one valve arrangement for intake or exhaust valves with one or more of the above features.
  • valve arrangement for a valve-controlled internal combustion engine is schematically illustrated in longitudinal section.
  • an electric linear motor 10 serves as an actuator for a valve member 12.
  • the linear motor 10 has a rotor 16 coupled to the valve member 12 via a rod 14 and a stator 18.
  • the stand 18 is constructed from circular iron sheets 20, the surface of which is oriented perpendicular to the direction of movement B of the rotor 16.
  • the stand 18 has teeth 22 facing the rotor 16, each of which has a closed lateral surface facing the rotor 16.
  • the individual teeth 22 have a circular cylindrical outer surface.
  • oval sheets or sheets with a polygonal shape for the construction of the stand 18.
  • the stator 18 has stator windings 24 which are oriented parallel to the surface of the sheets 20. For this purpose, some of the sheets 20 have a smaller diameter than those sheets which form the teeth 22. In this way, between two adjacent teeth 22, open winding chambers 26 are formed, in each of which there is a winding 24 which is concentric with the central longitudinal axis of the stator 18.
  • the type of connection of the individual windings gen 24 or its application of electrical current depends on the desired type of motor (single or multi-phase motor).
  • each of the sheets 20 has a recess 30 in which polymorphic iron material or packed iron wires for the magnetic connection of the sheets is contained.
  • each winding 24 is arranged over its entire extent in the winding chamber, it also contributes to the effective generation of force in the linear motor over its entire length.
  • the rotor 16 is a hollow cylindrical iron ring which, on its inner surface facing the stator 18, has recesses which are axially spaced apart and in which copper or aluminum rings 34 are received.
  • the rotor 16 thus works as a hybrid rotor.
  • the rotor 16 is coupled to a sensor 36 for detecting the path of the rotor 16 in the direction of movement B.
  • the rotor 16 is supported against the housing 40 with a resonance spring arrangement 42.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention relates to a valve system for a valve-controlled combustion engine having an electric linear motor (10) which serves as actuator for a valve member. The linear motor has a rotor (16) which is coupled to a valve member (12), and a stator (18). The stator (18) is made of sheet metal (20), the surface of which is perpendicular to the direction (B) of movement of the rotor (16). The stator (18) is fitted with teeth (22) which face towards the rotor (18) and which each have a closed lateral surface facing the rotor (18).

Description

Ventilanordnung für einen ventilgesteuerten VerbrennungsmotorValve arrangement for a valve-controlled internal combustion engine
Beschreibungdescription
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 Nockenwel- le bewirkt und gesteuert wird. Vielmehr wird bei der erfin- dungsgemäßen Anordnung ein elektrisch betätigter Ventilantrieb eingesetzt.The present invention relates to a valve arrangement for a valve-controlled internal combustion engine. In particular, the invention relates to a valve arrangement in which the reciprocating movement of the valve member is not effected and controlled by a camshaft. Rather, an electrically operated valve drive is used in the arrangement according to the invention.
Derartige elektrisch betätigte Ventilanordnungen sind in den unterschiedlichsten Ausgestaltungen im Stand der Technik bekannt.Such electrically actuated valve arrangements are known in a wide variety of configurations in the prior art.
Die DE 30 19 109 AI beschreibt eine Ventilanordnung, die auf einem Linearmotor zur Betätigung der Ventile beruht. Der Li- nearmotor 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 AI describes a valve arrangement which is based on a linear motor for actuating the valves. The linear motor is controlled by a microprocessor depending on one or more motor parameters (speed, fuel quantity, etc.). However, no information on the design of the linear motor can be found in this document.
Aus der DE 195 18 056 AI 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 Ven- tils ist die hohe Geräuschentwicklung beim Erreichen der jeweiligen Endstellungen, das abrupte Abbremsen beim Erreichen der Endstellungen sowie die erforderlichen hohen Halteströme. 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 geringe- rer 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.From DE 195 18 056 AI a gas valve control with a gas exchange valve is known, which is actuated by an electromagnet arrangement. A special configuration of the pole leg of the electromagnet arrangement generates a signal related to the movement of the armature in the control line of the electromagnet arrangement. This signal can be evaluated to identify any anchor position without additional sensors. A major problem when using an electromagnet arrangement for actuating the valve is the high level of noise when the respective end positions are reached, the abrupt braking when the end positions are reached and the high holding currents required. The same applies to differential electromagnet arrangements which are also proposed in various ways and which are subjected to increasing currents in a targeted manner in order to achieve the required thrust of approximately 300-400 N for car internal combustion engines. The valve, which is loaded by a spring arrangement, therefore initially carries out an oscillating movement before an iron plate arranged on the valve stem bears against the armature of the electromagnet arrangement, so that a much lower holding current is required. However, the maximum engine speed is considerably limited. The start-up time is relatively long since it takes some time for the valve assembly to swing into its desired position due to the high dynamic force required.
Weitere Dokumente ohne Anspruch auf Vollständigkeit, die technischen Hintergrund für die Erfindung zeigen, sind: DE 33 07 070 AI, DE 35 00 530 AI, EP 244 878 Bl, WO 90/07635, US 4,829,947, EP 377 244 Bl, EP 347 211 Bl, EP 390 519 Bl, EP 328 194 Bl, EP 377 251 Bl, EP 312 216 Bl, US 4,967,702, US 3,853,102, US 4,829,947, US 4,915,015, WO 90/07637, EP 244 878 Bl, EP 328 195 A2.Further documents without any claim to completeness, which show the technical background for the invention, are: DE 33 07 070 AI, DE 35 00 530 AI, EP 244 878 B1, WO 90/07635, US 4,829,947, EP 377 244 B1, EP 347 211 Bl, EP 390 519 Bl, EP 328 194 Bl, EP 377 251 Bl, EP 312 216 Bl, US 4,967,702, US 3,853,102, US 4,829,947, US 4,915,015, WO 90/07637, EP 244 878 Bl, EP 328 195 A2.
Alle Konzepte, die in den vorstehend genannten Dokumenten be- schrieben 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. 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.All of the concepts described in the documents mentioned above have in common that they have at least one of the problems mentioned above. In addition, with the arrangements known in the prior art, the stroke, thrust and dynamics required for valve arrangements in internal combustion engines cannot be achieved with a sufficiently compact structure and reliability for large-scale use in automotive engines. From JP-A-3-92518 a drive device for a valve arrangement in internal combustion engines is known, in which the stator is constructed from two approximately semi-cylindrical shells, which have both teeth in the circumferential direction and in the longitudinal direction of each shell facing the rotor. The individual teeth of each shell are each surrounded by a winding, the central longitudinal axis of which extends 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 radial magnetic flux which, starting from each of the plurality of teeth, flows into the rotor through the air gap between the stator and the rotor.
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 corresponding configuration of the stator, the stator coils and the rotor of a drive device for a valve arrangement in internal combustion engines is described in US Pat. No. 5,129,369. Here, too, teeth of the stator which are divided in the radial and tangential directions are each surrounded by a winding whose central longitudinal axis runs in the radial direction.
Auch die EP 0 485 231 AI 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 AI also shows a similar type of design of the stator, the stator coils and the rotor of a drive device for a valve arrangement in internal combustion engines. Here, too, teeth of the stator divided in the radial and tangential directions are each surrounded by a radially oriented 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. 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.These arrangements are very complex to manufacture, since it is difficult to assemble the windings around the individual teeth. In addition, the pole pitch that can be achieved with this structure is relatively large. 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 wer- den. 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 Anord- nungen. Dies bedeutet auch eine deutlich geringere Geräu- schentwicklung und weniger Verschleiß.This arrangement enables a very small pole pitch of the linear motor, so that a very high force density can be achieved. In addition, the force generated by the linear motor can be precisely adjusted along the stroke of the valve member. It is therefore not necessary to apply considerable kinetic energy to the valve member so that it takes on its end position. This means that considerably less energy is required to actuate the valve member than in the arrangements known from the prior art. This also means significantly less noise 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 Iso- lationsmaterial 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.The arrangement of the stator winding makes it possible to keep the vibrating forces acting on the winding low, so that vibrations of the winding or friction of the winding on the metal sheets are low. This makes it possible to make do with minimal insulation material or lining material of the winding chamber. This also contributes to the compactness and reliability of the overall arrangement. This also results in a high power density even with small linear motors, since the filling factor of the winding chamber (winding volume in the winding chamber in relation to 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. 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 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. As an alternative to this, the iron material can also be formed by iron particles which are pressed into the recesses in the metal sheets by means of synthetic resin or the like. The invention enables the construction of an actuator in which the at least one winding contributes over its entire extent to the effective generation of force in the linear motor. This means that the winding has no end windings, as is the case with conventional motors. The reason for this is that the winding is completely accommodated between the sheets of the stator in the winding chambers and the winding does not protrude beyond the teeth of the stator in the axial direction or in the radial direction.
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 which, compared to a conventional motor, has considerably less copper for generating a comparable magnetic field.
Erfindungsgemäß kann der Läufer als Asynchronläufer oder als Synchronläufer, oder im speziellen als Reluktanzlaufer ausgebildet sein.According to the invention, the rotor can be designed as an asynchronous rotor or as a synchronous rotor, or in particular as a reluctance rotor.
In einer bevorzugten Ausführungsform der erfindungsgemäßenIn a preferred embodiment of the invention
Ventilanordnung ist der Läufer mit einem Sensor zur Wegerfassung, vorzugsweise einer Tauchspulenanordnung gekoppelt.Valve arrangement, the rotor is coupled to a sensor for path detection, preferably a moving coil arrangement.
Dies ist insbesondere deshalb vorteilhaft, weil mit dem er- findungsgemaßen Aktuator auch ein Teilhub der Ventilanordnung möglich ist. Dieser Teilhub kann über den Sensor erfaßt werden.This is particularly advantageous because a partial stroke of the valve arrangement is also possible with the actuator according to the invention. 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, the rotor 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. 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.The runner is preferably designed as a hybrid runner with an iron body in which copper or aluminum tires are inserted. Finally, the invention relates to an internal combustion engine with at least one combustion cylinder, with at least one valve arrangement 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.Further features, properties, advantages and possible modifications will become apparent to a person skilled in the art from the description below, in which reference is made to the attached drawing.
In der Zeichnung ist eine Ventilanordnung für einen ventilgesteuerten Verbrennungsmotor schematisch im Längsschnitt veranschaulicht.In the drawing, a valve arrangement for a valve-controlled internal combustion engine is schematically illustrated in longitudinal section.
Ein elektrischer Linearmotor 10 dient bei der erfindungsgemaßen 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.In the valve arrangement according to the invention, an electric linear motor 10 serves as an actuator for a valve member 12. The linear motor 10 has a rotor 16 coupled to the valve member 12 via a rod 14 and a stator 18.
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 Bei- spiel 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 stand 18 is constructed from circular iron sheets 20, the surface of which is oriented perpendicular to the direction of movement B of the rotor 16. The stand 18 has teeth 22 facing the rotor 16, each of which has a closed lateral surface facing the rotor 16. In the present example with circular sheets 20, the individual teeth 22 have a circular cylindrical outer surface. However, it is also possible to use oval sheets or sheets with a polygonal shape for the construction of the stand 18.
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 offe- ne Wicklungskammern 26 gebildet, in denen sich jeweils eine zur Mittellängsachse des Ständers 18 konzentrische Wicklung 24 befindet. Die Art der Verschaltung der einzelnen Wicklun- gen 24 bzw. deren Beaufschlagen mit elektrischem Strom ist von der gewünschten Art des Motors (Ein- oder Mehrphasenmotor) abhängig.The stator 18 has stator windings 24 which are oriented parallel to the surface of the sheets 20. For this purpose, some of the sheets 20 have a smaller diameter than those sheets which form the teeth 22. In this way, between two adjacent teeth 22, open winding chambers 26 are formed, in each of which there is a winding 24 which is concentric with the central longitudinal axis of the stator 18. The type of connection of the individual windings gen 24 or its application of electrical current depends on the desired type of motor (single or multi-phase motor).
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 sheets 20 has a recess 30 in which polymorphic iron material or packed iron wires for the magnetic connection of the sheets is contained.
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 is arranged over its entire extent in the winding chamber, it also contributes to the effective generation of force in the linear motor over its entire length.
In der gezeigten Anordnung ist der Läufer 16 ein hohlzylin- drischer 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 rotor 16 is a hollow cylindrical iron ring which, on its inner surface facing the stator 18, has recesses which are axially spaced apart and in which copper or aluminum rings 34 are received. The rotor 16 thus works as a hybrid rotor.
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.At the end facing away from the valve member 12, the rotor 16 is coupled to a sensor 36 for detecting the path of the rotor 16 in the direction of movement B.
Der Läufer 16 ist gegen das Gehäuse 40 mit einer Resonanzfe- deranordnung 42 abgestützt. The rotor 16 is supported against the housing 40 with a resonance spring arrangement 42.

Claims

Ansprüche Expectations
1. Ventilanordnung für einen ventilgesteuerten Verbren- nungsmotor, mit einem elektrischen Linearmotor (10) als Aktuator für ein Ventilglied, der1. Valve arrangement for a valve-controlled internal combustion engine, with an electric linear motor (10) as an actuator for a valve member, the
- einen mit einem Ventilglied (12) gekoppelten Läufer (16) und- One with a valve member (12) coupled rotor (16) and
- einen Ständer (18) aufweist, wobei — der Ständer (18) aus Blechen (20) aufgebaut ist, deren- A stand (18), wherein - the stand (18) is constructed from sheets (20), the
Fläche senkrecht zur Bewegungsrichtung (B) des Läufers (16) orientiert ist, undSurface is oriented perpendicular to the direction of movement (B) of the rotor (16), and
— der Ständer (18) dem Läufer (18) zugewandte Zähne (22) aufweist, die jeweils eine geschlossene, dem Läufer (18) zu- gewandte Zylindermantelfläche haben, und wobei- The stator (18) has the teeth (22) facing the rotor (18), each of which has a closed, cylindrical surface facing the rotor (18), and wherein
— jeweils zwischen zwei benachbarten Zähnen (22) des Ständers (18) Wicklungskammern (26) gebildet sind, in denen jeweils eine parallel zu der Fläche der Bleche (20) orientierte Wicklung (24) angeordnet ist.- Winding chambers (26) are formed between two adjacent teeth (22) of the stator (18), in each of which a winding (24) oriented parallel to the surface of the metal sheets (20) is arranged.
2. Ventilanordnung nach Anspruch 1, wobei die Bleche (20) wenigstens eine Ausnehmung (30) aufweisen, die Eisenmaterial zur Verbindung der Bleche (20) enthält.2. Valve arrangement according to claim 1, wherein the sheets (20) have at least one recess (30) containing iron material for connecting the sheets (20).
3. Ventilanordnung nach Anspruch 1, wobei die wenigstens eine Wicklung (24) über ihre gesamte Erstreckung zur effektiven Kraftbildung in dem Linearmotor (10) beiträgt.3. Valve arrangement according to claim 1, wherein the at least one winding (24) contributes over its entire extent to the effective force formation in the linear motor (10).
4. Ventilanordnung nach Anspruch 1, wobei der Läufer (16) als Asynchronläufer oder als Synchronläufer, oder als Reluktanzläufer ausgebildet ist.4. Valve arrangement according to claim 1, wherein the rotor (16) is designed as an asynchronous rotor or as a synchronous rotor, or as a reluctance rotor.
5. Ventilanordnung nach Anspruch 1, wobei der Läufer (16) mit einem Sensor zur Wegerfassung, vorzugsweise einer Tauch- spulenanordnung (36) gekoppelt ist. 5. Valve arrangement according to claim 1, wherein the rotor (16) is coupled to a sensor for path detection, preferably a moving coil arrangement (36).
6. Ventilanordnung nach Anspruch 1, wobei der Läufer (16) mit einer Resonanzfederanordnung (42) gekoppelt ist.6. Valve arrangement according to claim 1, wherein the rotor (16) is coupled to a resonance spring arrangement (42).
7. Ventilanordnung nach Anspruch 1, wobei der Läufer als Hybridläufer, mit einem Eisenkörper (16) in den Kupfer- oder Aluminiumreifen (34) eingesetzt sind, ausgestaltet ist.7. Valve arrangement according to claim 1, wherein the rotor is designed as a hybrid rotor, with an iron body (16) in the copper or aluminum tires (34).
8. Interner Verbrennungsmotor mit wenigstens einem Verbrennungszylinder, mit wenigstens einer Ventilanordnung mit den Merkmalen eines oder mehrerer der vorstehenden Ansprüche. 8. Internal combustion engine with at least one combustion cylinder, with at least one valve arrangement with the features of one or more of the preceding claims.
PCT/EP1998/003212 1997-06-06 1998-05-29 Valve system for a valve-controlled combustion engine WO1998055741A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP50144999A JP2002506499A (en) 1997-06-06 1998-05-29 Valve devices for valve-controlled combustion engines
DE59803523T DE59803523D1 (en) 1997-06-06 1998-05-29 VALVE ARRANGEMENT FOR A VALVE CONTROLLED COMBUSTION ENGINE
EP98928335A EP0986696B1 (en) 1997-06-06 1998-05-29 Valve system for a valve-controlled combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19723923.4 1997-06-06
DE19723923A DE19723923C2 (en) 1997-06-06 1997-06-06 Valve arrangement for a valve-controlled internal combustion engine

Publications (1)

Publication Number Publication Date
WO1998055741A1 true WO1998055741A1 (en) 1998-12-10

Family

ID=7831698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/003212 WO1998055741A1 (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)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE10035973C2 (en) * 2000-07-24 2003-06-05 Compact Dynamics Gmbh Gas exchange valve for a valve-controlled internal combustion engine
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
US6755161B2 (en) 2000-07-24 2004-06-29 Compact Dynamics Gmbh Gas exchange valve drive for a valve-controlled combustion engine
DE102005017482A1 (en) * 2005-04-15 2006-11-02 Compact Dynamics Gmbh Gas exchange valve actuator for a valve-controlled internal combustion engine
US7989991B2 (en) 2005-04-15 2011-08-02 Compact Dynamics, GmbH Linear actuator

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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
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
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377525A1 (en) * 1977-01-12 1978-08-11 Lucas Industries Ltd MOTOR MUSHROOM VALVE CONTROL MECHANISM
US4533890A (en) * 1984-12-24 1985-08-06 General Motors Corporation Permanent magnet bistable solenoid actuator
EP0291638A2 (en) * 1987-03-26 1988-11-23 International Business Machines Corporation Linear actuator
EP0390422A1 (en) * 1989-03-30 1990-10-03 Isuzu Ceramics Research Institute Co., Ltd. Valve stepping drive apparatus
EP0485231A1 (en) * 1990-11-08 1992-05-13 Isuzu Ceramics Research Institute Co., Ltd. Electromagnetic valve actuating system
DE19518056A1 (en) * 1995-05-17 1996-11-21 Fev Motorentech Gmbh & Co Kg Armature movement control appts of electromagnetic switching arrangements e.g. for IC engine gas-exchange valves

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE19722632A1 (en) * 1997-05-30 1998-12-03 Schaeffler Waelzlager Ohg Drive for periodically actuating at least one valve in internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377525A1 (en) * 1977-01-12 1978-08-11 Lucas Industries Ltd MOTOR MUSHROOM VALVE CONTROL MECHANISM
US4533890A (en) * 1984-12-24 1985-08-06 General Motors Corporation Permanent magnet bistable solenoid actuator
EP0291638A2 (en) * 1987-03-26 1988-11-23 International Business Machines Corporation Linear actuator
EP0390422A1 (en) * 1989-03-30 1990-10-03 Isuzu Ceramics Research Institute Co., Ltd. Valve stepping drive apparatus
EP0485231A1 (en) * 1990-11-08 1992-05-13 Isuzu Ceramics Research Institute Co., Ltd. Electromagnetic valve actuating system
DE19518056A1 (en) * 1995-05-17 1996-11-21 Fev Motorentech Gmbh & Co Kg Armature movement control appts of electromagnetic switching arrangements e.g. for IC engine gas-exchange valves

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE10035973C2 (en) * 2000-07-24 2003-06-05 Compact Dynamics Gmbh Gas exchange valve for a valve-controlled internal combustion engine
US6755161B2 (en) 2000-07-24 2004-06-29 Compact Dynamics Gmbh Gas exchange valve drive for a valve-controlled combustion engine
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
DE102005017482A1 (en) * 2005-04-15 2006-11-02 Compact Dynamics Gmbh Gas exchange valve actuator for a valve-controlled internal combustion engine
DE102005017482B4 (en) * 2005-04-15 2007-05-03 Compact Dynamics Gmbh Gas exchange valve actuator for a valve-controlled internal combustion engine
US7841309B2 (en) 2005-04-15 2010-11-30 Compact Dynamics Gmbh Gas exchange valve actuator for a valve-controlled internal combustion engine
US7989991B2 (en) 2005-04-15 2011-08-02 Compact Dynamics, GmbH Linear actuator

Also Published As

Publication number Publication date
DE19723923A1 (en) 1998-12-10
EP0986696B1 (en) 2002-03-27
JP2002506499A (en) 2002-02-26
DE19723923C2 (en) 2000-06-21
DE59803523D1 (en) 2002-05-02
EP0986696A1 (en) 2000-03-22

Similar Documents

Publication Publication Date Title
EP0986696B1 (en) Valve system for a valve-controlled combustion engine
DE602004012340T2 (en) Turbocharger with electric auxiliary drive
EP0450288B1 (en) Electrical linear motor
DE10158929A1 (en) Electromechanical valve arrangement for an internal combustion engine
WO2007036202A1 (en) Jet engine comprising an integrated electric motor/generator unit
EP1305505B1 (en) Gas-exchange valve control for a valve-controlled internal combustion engine
DE202010013455U1 (en) Electric machine
WO2003061099A2 (en) Internal combustion engine with a crankshaft mounted in a crankcase with the starter/generator arranged on the crankshaft
DE102016207943A1 (en) Motor and / or generator device
DE102005017482B4 (en) Gas exchange valve actuator for a valve-controlled internal combustion engine
EP1869756B1 (en) Linear actuator
EP1263122A1 (en) Linear drive having a rotational symmetry and a double-sided actuator arrangement
DE10044789C2 (en) Driving device of a gas exchange valve for a valve-controlled internal combustion engine
EP2291903B1 (en) Linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers
DE10125767C1 (en) Gas exchange valve control for valve-controlled internal combustion engine has rotor with concentric permanently magnetic rings and stator of magnetically soft material
WO2019057711A1 (en) Electric media gap machine, and compressor and/or turbine
DE19910065C1 (en) 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
DE102016224908A1 (en) Electric machine with axially displaceable stator
DE10035973C2 (en) Gas exchange valve for a valve-controlled internal combustion engine
DE4445100C2 (en) Switchable throttle system
DE102016220865A1 (en) Media gap motor, compressor or turbine, turbocharger
DE19723924B4 (en) Electric linear motor
DE10124462A1 (en) Magnetic torsion spring e.g. for switching valve in internal combustion engine has permanent magnet has adjacent rotor poles with opposite polarization along circumference
DE102011117477A1 (en) Electric machine e.g. reluctance motor, for use in cylinder liner of e.g. four-cylinder engine for vehicle, has flat coil arranged on cylinder liner as stator of machine such that machine is operated according to reluctance principle

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR CA CN JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1998928335

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 09459396

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1998928335

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1998928335

Country of ref document: EP