EP1134362B1 - Electromagnetic valve drive for engine valve - Google Patents

Electromagnetic valve drive for engine valve Download PDF

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Publication number
EP1134362B1
EP1134362B1 EP00111146A EP00111146A EP1134362B1 EP 1134362 B1 EP1134362 B1 EP 1134362B1 EP 00111146 A EP00111146 A EP 00111146A EP 00111146 A EP00111146 A EP 00111146A EP 1134362 B1 EP1134362 B1 EP 1134362B1
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EP
European Patent Office
Prior art keywords
valve
combination according
sleeves
shaft
cotters
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
Application number
EP00111146A
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German (de)
French (fr)
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EP1134362A1 (en
Inventor
Klaus Dr.-Ing. Gebauer
Walter Strzoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRW Deutschland GmbH
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TRW Deutschland GmbH
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Filing date
Publication date
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Publication of EP1134362A1 publication Critical patent/EP1134362A1/en
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Publication of EP1134362B1 publication Critical patent/EP1134362B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/10—Connecting springs to valve members
    • 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
    • F01L2009/2125—Shaft and armature construction

Definitions

  • the invention relates to a combination of an electromagnetic valve train and a gas exchange valve of an internal combustion engine with a rod-shaped one Magnetic armature-carrying actuator that connects to the free end of the valve stem is connected to transmit power.
  • Valve drives without camshafts to control the movements of Gas exchange valves in internal combustion engines are generally known.
  • the control a valve take over two axially opposite electromagnets, from which one for the opening process and the opposite for the Closing process is provided.
  • the changing forces of the magnets by the forces of valve springs one each Close and open, are supported.
  • the requirement is met, the cylindrical one Shaft of an actuator in a camshaft-less valve drive with the same cylindrical stem of a valve of an internal combustion engine to transmit power connect.
  • valve springs are not used. The necessary rotation of the valve during its movements is not hindered.
  • the spacer ring is preferably made of copper, but it can also be made of an elastomeric material, for example of a rubber that is insensitive to oil or fuel.
  • the valve stem be provided with a plurality of groove recesses into which multi-groove valve cone pieces are gripped, the necessary play for the valve's freedom of rotation being provided between the valve stem and the cone pieces.
  • the actuator shaft is provided with a grooved groove for receiving a self-locking valve cone piece. This reduces the play between the connection components of the system.
  • a magnet armature with a circular contour and the arrangement of a single-groove, clamping cone piece on the valve shaft can rotate the magnet armature during operation together with the valve.
  • the sleeves can be made of aluminum. To prevent the screw connection from loosening independently, a locking device can be inserted into the threads.
  • valve stem 3 has a multi-groove groove 4 at its end Mistake.
  • the recess 2 of the anchor shaft or actuator engages conventional clamping valve plug 5.
  • the recess 4 at the end of the valve stem also carries a conventional, non-jamming multi-groove valve plug 6.
  • the valve cone pieces are comprised of sleeve-shaped components 7 and 8.
  • the Sleeves have inner cones 9 and 10, the cone angle of which is that of the lateral surfaces the cone pieces are adapted.
  • the sleeves 7 and 8 can be screwed to one another via screw attachments 11 and 12. Wrench sizes are attached to the sleeves, with which the Screwing the sleeves into each other is made easier. An independent loosening of the Screw connection can be made by means of a locking device inserted into the thread be prevented.
  • the free space between the cone pieces 5 and 6 is filled by a deformable construction element in the form of a spacer ring 13.
  • the ring can be made of copper, but for reasons of elasticity also of oil and fuel-resistant rubber material or another elastomeric material.
  • the deformable spacer ring causes the cone pieces and thus the shafts 1 and 3 to be held in their positions during axial movements. At the same time, the zero position of the armature can be determined via the preload of this construction element.
  • valve is first inserted into the cylinder head (not shown) and held in position by the radial force of the valve stem seal acting on its stem 3 or a suitable assembly tool. Then the sleeve 8 is pushed over the end of the stem and the conical pieces 6 are mounted on the end of the valve stem. Then the sleeve 8 is brought into contact with the cone pieces 6 and fixed by inserting the construction element designed as a spacer ring 13. The sleeve 7 is first pushed onto the shaft of the actuator 1 mounted between the electromagnets, not shown. Then the conical pieces 5 can be positioned in the recess 2 and held in position by the sleeve 7.
  • the sleeves lie coaxially with one another and can be screwed together through a suitable mounting opening in the cylinder head.
  • a safety device against unintentional loosening must be placed on the thread of one of the sleeves beforehand.

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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)

Description

Die Erfindung betrifft eine Kombination eines elektromagnetischen Ventiltriebes und eines Gaswechselventils einer Brennkraftmaschine mit einem stabförmigen, einen Magnetanker tragenden Aktuator, der mit dem freien Ende des Ventilschaftes kraftübertragend verbunden ist.The invention relates to a combination of an electromagnetic valve train and a gas exchange valve of an internal combustion engine with a rod-shaped one Magnetic armature-carrying actuator that connects to the free end of the valve stem is connected to transmit power.

Nockenwellenlose Ventilantriebe zur Steuerung der Bewegungen von Gaswechselventilen in Brennkraftmaschinen sind allgemein bekannt. Die Steuerung eines Ventils übernehmen zwei sich axial gegenüberliegende Elektromagneten, von welchen einer für den Öffnungsvorgang und der diesem gegenüberliegende für den Schließvorgang vorgesehen ist. Zu diesem Zweck ist ein axial zwischen den beiden Magneten beweglicher Anker vorgesehen, der an einer Ventilstange befestigt ist und durch wechselnde Magnetkräfte das Ventil öffnet und schließt. Zusätzlich können die wechselnden Kräfte der Magneten durch die Kräfte von Ventilfedem jeweils eine zum Schließen und Öffnen, unterstützt werden.Valve drives without camshafts to control the movements of Gas exchange valves in internal combustion engines are generally known. The control a valve take over two axially opposite electromagnets, from which one for the opening process and the opposite for the Closing process is provided. For this purpose there is an axial between the two Magnet provided movable armature, which is attached to a valve rod and the valve opens and closes due to changing magnetic forces. In addition, the changing forces of the magnets by the forces of valve springs one each Close and open, are supported.

Für die kraftübertragende Verbindung zwischen dem Ventilschaft und dem Magnetanker sind verschiedene Lösungen entwickelt entwickelt worden, wie beispielsweise die DE-33 11 250 C2, die DE-35 00 530 C2 oder die DE-43 36 287 C1 zeigen. Alle vorgenannten Lösungen zeigen die Verwendung von Ventilkegelstücken, die in konischen Bohrungen von Ventilfederteilern liegen und mit einwärts weisenden, wulstförmigen Ringen in Einstiche am Ventilschaft oder am Aktuator greifen. Voraussetzung ist also die Verwendung von Ventilfedern, die sich auf den Ventilfederteilern abstützen und eine spielfreie Anordnung der Ventilkegelstücke in den Ventilfederteilem bewirken. Um zu vermeiden, daß der Öffnungsmagnet nicht gegen die volle Schließkraft der Schließfeder arbeiten muß, wird allgemein eine der Schließfeder entgegenwirkende Öffnerfeder vorgesehen. Voraussetzung für ein einwandfreies Funktionieren eines solchen Antriebssystems ist die genaue Einstellung des Ankers in der geometrischen Mittellage zwischen den Magneten. Das kann mit Hilfe einer Federfußpunktverstellung für den Anker erreicht werden, was einen nicht unerheblichen konstruktiven Aufwand erfordert.For the force-transmitting connection between the valve stem and the Magnetic anchors have been developed, such as various solutions for example DE-33 11 250 C2, DE-35 00 530 C2 or DE-43 36 287 C1 show. All of the above solutions show the use of Valve plug pieces that are in conical bores of valve spring dividers and with inward-pointing, bead-shaped rings in punctures on the valve stem or on Grip actuator. The prerequisite is therefore the use of valve springs that are Support on the valve spring dividers and a play-free arrangement of the Actuate valve cone pieces in the valve spring parts. To avoid the Opening magnet does not have to work against the full closing force of the closing spring, is generally provided an opening spring counteracting the closing spring. The prerequisite for the proper functioning of such a drive system is the exact setting of the anchor in the geometric middle position between the Magnet. This can be achieved with the help of a spring base adjustment for the anchor become, which requires a not inconsiderable design effort.

Der Erfindung liegt die Aufgabe zugrunde, eine Kombination der einleitend beschriebenen Gattung zu schaffen, bei der die Verbindung zwischen dem den Magnetanker tragenden Aktuator und dem Ventilschaft über Ventilkegelstücke das Vorhandensein von Ventilfedern nicht voraussetzt. Dabei soll das Ventil die Bedingung der notwendigen Drehung erfüllen können. Gleichzeitig soll die Einstellung des Ankers in die geometrische Mittellage zwischen den Elektromagneten in einfacher Weise gewährleistet sein. Die Erfindung löst die Aufgabe durch folgende Merkmale:

  • a) die Enden der Ventil- und Aktuatorschäfte sind mit rillenförmigen Einstichen versehen, in welche konventionelle Ventilkegelstücke fassen,
  • b) die Ventilkegelstücke werden von Hülsen mit Innenkonen umfaßt,
  • c) die Hülsen greifen mit Schraubeinsätzen ineinander und sind zur Erzeugung von auf die Ventilkegelstücke wirkenden Radialkräften durch das Ineinanderschrauben axial bewegbar,
  • d) zwischen den Ventilkegelstücken ist ein Distanzring aus einem deformierbaren, Rückstellkräfte erzeugenden Material angeordnet.
    • The invention has for its object to provide a combination of the type described in the introduction, in which the connection between the actuator carrying the armature and the valve stem via valve cone pieces does not require the presence of valve springs. The valve should be able to fulfill the condition of the necessary rotation. At the same time, the setting of the armature in the geometric central position between the electromagnets should be ensured in a simple manner. The invention achieves the object by the following features:
  • a) the ends of the valve and actuator stems are provided with groove-shaped recesses into which conventional valve cone pieces fit,
  • b) the valve cone pieces are surrounded by sleeves with inner cones,
  • c) the sleeves interlock with screw inserts and can be moved axially by screwing into one another to generate radial forces acting on the valve cone pieces,
  • d) a spacer ring made of a deformable material which generates restoring forces is arranged between the valve cone pieces.

    • Mit der erfindungsgemäßen Lösung wird die Forderung erfüllt, den zylindrischen Schaft eines Aktuators in einem nockenwellenlosen Ventilantrieb mit dem ebenfalls zylindrischen Schaft eines Ventils eines Verbrennungsmotors kraftübertragend zu verbinden. Es wird die weitere Forderung erfüllt, keine Ventilfedern zu verwenden. Die notwendige Drehung des Ventils während seiner Bewegungen wird nicht behindert. Durch die Anordnung eines Distanzringes mit axialer Rückstellwirkung zwischen den Ventilkegelstücken wird eine weitestgehende Spielfreiheit aller Verbindungskomponenten erreicht.With the solution according to the invention the requirement is met, the cylindrical one Shaft of an actuator in a camshaft-less valve drive with the same cylindrical stem of a valve of an internal combustion engine to transmit power connect. The further requirement is met that valve springs are not used. The necessary rotation of the valve during its movements is not hindered. By arranging a spacer ring with an axial restoring effect between the Valve plug pieces will have the greatest possible freedom of play for everyone Connection components reached.

    Vorzugsweise besteht der Distanzring aus Kupfer, er kann jedoch auch aus einem elastomeren Material, beispielsweise aus einem gegen Öl oder Kraftstoff unempfindlichen Gummi, hergestellt sein.
    In weiterer vorteilhafter Gestaltung der Erfindung wird vorgeschlagen, daß der Schaft des Ventils mit mehreren Rilleneinstichen versehen wird, in welche Mehrrillenventilkegelstücke fassen, wobei zwischen dem Ventilschaft und den Kegelstücken das notwendige Spiel zur Drehfreiheit des Ventils vorgesehen wird.
    Demgegenüber wird der Aktuatorschaft mit einem Einrilleneinstich zur Aufnahme eines selbstklemmenden Ventilkegelstücks versehen. Dadurch wird das Spiel zwischen den Verbindungskomponenten des Systems verringert. Durch einen Magnetanker mit kreisförmiger Kontur und der Anordnung eines einrilligen, klemmenden Kegelstücks am Ventilschacht kann eine Drehung des Magnetankers während des Betriebs zusammen mit dem Ventil erreicht werden. Aus Gewichtsgründen können die Hülsen aus Aluminium gefertigt sein. Um ein selbständiges Lockern der Schraubverbindung zu vermeiden, kann ein Sicherungsmittel in die Gewindegänge gebracht werden.    The spacer ring is preferably made of copper, but it can also be made of an elastomeric material, for example of a rubber that is insensitive to oil or fuel.
    In a further advantageous embodiment of the invention, it is proposed that the valve stem be provided with a plurality of groove recesses into which multi-groove valve cone pieces are gripped, the necessary play for the valve's freedom of rotation being provided between the valve stem and the cone pieces.
    In contrast, the actuator shaft is provided with a grooved groove for receiving a self-locking valve cone piece. This reduces the play between the connection components of the system. A magnet armature with a circular contour and the arrangement of a single-groove, clamping cone piece on the valve shaft can rotate the magnet armature during operation together with the valve. For weight reasons, the sleeves can be made of aluminum. To prevent the screw connection from loosening independently, a locking device can be inserted into the threads.

    In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt und nachstehend erläutert.In the drawing, an embodiment of the invention is shown schematically and explained below.

    Bei dem gezeigten Beispiel befindet sich an dem zylindrischen Schaft 1 eines nicht dargestellten Magenetankers ein einrilliger Einstich 2. Der zum Ankerschaft koaxiale Ventilschaft 3 ist dagegen an seinem Ende mit einem mehrrilligen Einstich 4 versehen. In den Einstich 2 des Ankerschafts oder Aktuators greift ein konventionelles klemmendes Ventilkegelstück 5. Der Einstich 4 am Ventilschaftende trägt ein ebenfalls konventionelles, nicht klemmendes Mehrrillenventilkegelstück 6. Die Ventilkegelstücke werden von hülsenförmigen Bauteilen 7 und 8 umfaßt. Die Hülsen weisen Innenkonen 9 und 10 auf, deren Kegelwinkel denen der Mantelflächen der Kegelstücke angepaßt sind.In the example shown, one is not on the cylindrical shaft 1 shown gastric tanker a single-groove puncture 2. The coaxial to the anchor shaft Valve stem 3, on the other hand, has a multi-groove groove 4 at its end Mistake. The recess 2 of the anchor shaft or actuator engages conventional clamping valve plug 5. The recess 4 at the end of the valve stem also carries a conventional, non-jamming multi-groove valve plug 6. The valve cone pieces are comprised of sleeve-shaped components 7 and 8. The Sleeves have inner cones 9 and 10, the cone angle of which is that of the lateral surfaces the cone pieces are adapted.

    Über Schraubansätze 11 und 12 sind die Hülsen 7 und 8 miteinander verschraubbar. An den Hülsen sind Schlüsselweiten angebracht, mit welchen das Ineinanderschrauben der Hülsen erleichtert wird. Ein selbständiges Lockern der Schraubverbindung kann durch ein in das Gewinde eingebrachtes Sicherungsmittel verhindert werden.The sleeves 7 and 8 can be screwed to one another via screw attachments 11 and 12. Wrench sizes are attached to the sleeves, with which the Screwing the sleeves into each other is made easier. An independent loosening of the Screw connection can be made by means of a locking device inserted into the thread be prevented.

    Der Freiraum zwischen den Kegelstücken 5 und 6 wird durch ein deformierbares Konstruktionselement in Form eines Distanzringes 13 ausgefüllt. Der Ring kann aus Kupfer, aber aus Elastizitätsgründen auch aus öl- und kraftstofffestem Gummimaterial oder einem anderen elastomeren Stoff gefertigt sein.
    Der deformierbare Distanzring bewirkt, daß die Kegelstücke und damit die Schäfte 1 und 3 bei axialen Bewegungen in ihren Positionen gehalten werden. Gleichzeitig kann über die Vorspannung dieses Konstruktionselementes die Nulllage des Ankers bestimmt werden.    The free space between the cone pieces 5 and 6 is filled by a deformable construction element in the form of a spacer ring 13. The ring can be made of copper, but for reasons of elasticity also of oil and fuel-resistant rubber material or another elastomeric material.
    The deformable spacer ring causes the cone pieces and thus the shafts 1 and 3 to be held in their positions during axial movements. At the same time, the zero position of the armature can be determined via the preload of this construction element.

    Bei der Montage wird zunächst das Ventil in den nicht dargestellten Zylinderkopf gesteckt und durch die auf seinen Schaft 3 wirkende Radialkraft der Ventilschaftabdichtung oder ein geeignetes Montagewerkzeug in Position gehalten. Anschließend werden über das Schaftende die Hülse 8 geschoben und die Kegelstücke 6 am Ventilschaftende montiert. Sodann wird die Hülse 8 an den Kegelstücken 6 zur Anlage gebracht und durch Einlegen des als Distanzring 13 ausgebildeten Konstruktionselements fixiert.
    Auf den Schaft des zwischen den nicht dargestellten Elektromagneten montierten Aktuators 1 wird zunächst die Hülse 7 geschoben. Dann können in dem Einstich 2 die Kegelstücke 5 positioniert und durch die Hülse 7 in ihrer Lage gehalten werden. Nach dem Aufsetzen des Aktuators auf den Zylinderkopf liegen die Hülsen koaxial zueinander und können durch eine geeignete Montageöffnung im Zylinderkopf miteinander verschraubt werden. Ein Sicherungsmittel gegen unbeabsichtigtes Lösen ist vorher auf das Gewinde einer der Hülsen zu bringen.    During assembly, the valve is first inserted into the cylinder head (not shown) and held in position by the radial force of the valve stem seal acting on its stem 3 or a suitable assembly tool. Then the sleeve 8 is pushed over the end of the stem and the conical pieces 6 are mounted on the end of the valve stem. Then the sleeve 8 is brought into contact with the cone pieces 6 and fixed by inserting the construction element designed as a spacer ring 13.
    The sleeve 7 is first pushed onto the shaft of the actuator 1 mounted between the electromagnets, not shown. Then the conical pieces 5 can be positioned in the recess 2 and held in position by the sleeve 7. After the actuator has been placed on the cylinder head, the sleeves lie coaxially with one another and can be screwed together through a suitable mounting opening in the cylinder head. A safety device against unintentional loosening must be placed on the thread of one of the sleeves beforehand.

    Die beiden Hülsen sind abschließend so lange gegeneinander zu schrauben bis eine Spielfreiheit zwischen den Ventilkegelstücken erreicht ist. Dann ist die Vorspannung zu steigern bis der Anker seine vorgeschriebene Position erreicht hat. Hierdurch wird gleichzeitig das herstellungstechnisch bedingte Spiel zwischen den Flanken der Gewindegänge aufgehoben.Finally, the two sleeves must be screwed together until one Clearance between the valve plug pieces is reached. Then the preload increase until the anchor has reached its prescribed position. This will at the same time the game-related game between the flanks of the Threads canceled.

    Claims (11)

    1. A combination of an electromagnetic valve drive and a gas reversing valve of an internal combustion engine with a bar-shaped actuator supporting an armature of a magnet, which is connected in a power-transferring manner with the free end of the valve shaft, characterized by the following features:
      a) the ends of the valve shaft (3) and actuator shaft (1) are provided with grooved perforations (2, 4), in which conventional valve cotters (5, 6) engage;
      b) the valve cotters are surrounded by sleeves (7, 9) with inner cones (9, 10);
      c) the sleeves engage with screw projections (11, 12) into one another and are axial moveable by means of screwing into one another for production of radial forces acting on the valve cotters;
      d) between the valve cotters, a spacer ring (13) made from a deformable, restoring force-producing material.
    2. The combination according to claim 1, characterized in that the spacer ring (13) is made of copper.
    3. The combination according to claim 1, characterized in that the spacer ring (13) comprises an elastomeric material, for example, oil and fuel-ester rubber.
    4. The combination according to one of claims 1 through 3, characterized in that the valve shaft (3) is provided with multiple grooved perforations (4) for receiving a multi-grooved valve cotter, wherein between the valve shaft and the valve cotter, a free space ensuring rotation of the valve is maintained.
    5. The combination according to one of claims 1 through 4, characterized in that the actuator shaft (1) is provided with a singly grooved perforation (2) for receiving a self-adhering valve cotter (5).
    6. The combination according to one of claims 1 through 5, characterized in that the sleeves (7, 8) are made from aluminum.
    7. The combination according to one of claims 1 through 5, characterized in that the sleeves (7, 8) are made from titanium or a titanium alloy.
    8. The combination according to one of claims 1 through 5, characterized in that the sleeves (7, 8) are made of steel.
    9. The combination according to one of claims 1 through 8, characterized in that the threads of the sleeves are provided with a securing means for unintended loosening.
    10. The combination according to one of claims 1 through 9, characterized in that key shoulders are disposed on the sleeves.
    11. The combination according to one of claims 1 through 10, characterized in that the armature has a circular contour and the valve shaft is equipped with a clamping valve cotter.
    EP00111146A 2000-03-02 2000-05-24 Electromagnetic valve drive for engine valve Expired - Lifetime EP1134362B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10010272 2000-03-02
    DE10010272A DE10010272A1 (en) 2000-03-02 2000-03-02 Electromagnetic valve drive for internal combustion engine gas replacement valve has shaft notches engaged by conventional conical parts, deformable ring that produces restoring force

    Publications (2)

    Publication Number Publication Date
    EP1134362A1 EP1134362A1 (en) 2001-09-19
    EP1134362B1 true EP1134362B1 (en) 2004-09-29

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00111146A Expired - Lifetime EP1134362B1 (en) 2000-03-02 2000-05-24 Electromagnetic valve drive for engine valve

    Country Status (2)

    Country Link
    EP (1) EP1134362B1 (en)
    DE (2) DE10010272A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102006021478A1 (en) * 2006-05-09 2007-11-15 Tilco Biochemie Gmbh Preparation for body treatment

    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10141176A1 (en) * 2001-08-22 2003-03-20 Bosch Gmbh Robert Detachable connection for coupling a gas exchange valve of an internal combustion engine to an actuator
    DE10314860A1 (en) * 2003-04-02 2004-10-14 Bayerische Motoren Werke Ag Electric valve train for internal combustion engines with valve game damping element
    FR3000534A1 (en) * 2013-01-02 2014-07-04 Peugeot Citroen Automobiles Sa Link for use between shank of solenoid valve and support of actuator, has connection element placed in cavity according to direction with regard to oblique direction of axis of shank, where direction is approximately perpendicular to axis
    US11193553B2 (en) * 2017-08-25 2021-12-07 Thyssenkrupp Bilstein Gmbh Vibration damper for vehicles, a piston rod, a piston rod attachment and a method for fixing an attachment element on a piston rod of a vibration damper, in particular for vehicles

    Family Cites Families (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3311250C2 (en) 1983-03-28 1985-08-01 FEV Forschungsgesellschaft für Energietechnik und Verbrennungsmotoren mbH, 5100 Aachen Device for the electromagnetic actuation of a gas exchange valve for positive displacement machines
    DE3500530A1 (en) 1985-01-09 1986-07-10 Binder Magnete GmbH, 7730 Villingen-Schwenningen Device for the electromagnetic control of piston valves
    DE4336287C1 (en) 1993-10-25 1995-03-02 Daimler Benz Ag Device for the solenoid actuation of an inlet and exhaust valve
    JPH1113435A (en) * 1997-06-25 1999-01-19 Toyota Motor Corp Solenoid operated valve
    DE19807721A1 (en) * 1998-02-24 1999-09-02 Daimler Chrysler Ag Electromagnetic valve control unit
    DE19811779C1 (en) * 1998-03-18 1999-04-22 Daimler Chrysler Ag Device for operating gas exchange valve for internal combustion engine

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102006021478A1 (en) * 2006-05-09 2007-11-15 Tilco Biochemie Gmbh Preparation for body treatment

    Also Published As

    Publication number Publication date
    EP1134362A1 (en) 2001-09-19
    DE10010272A1 (en) 2001-09-06
    DE50007988D1 (en) 2004-11-04

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