EP0190432A1 - Valve-rotating device - Google Patents

Valve-rotating device Download PDF

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Publication number
EP0190432A1
EP0190432A1 EP85115500A EP85115500A EP0190432A1 EP 0190432 A1 EP0190432 A1 EP 0190432A1 EP 85115500 A EP85115500 A EP 85115500A EP 85115500 A EP85115500 A EP 85115500A EP 0190432 A1 EP0190432 A1 EP 0190432A1
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EP
European Patent Office
Prior art keywords
base plate
spring
roller member
plate
abutment
Prior art date
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Granted
Application number
EP85115500A
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German (de)
French (fr)
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EP0190432B1 (en
Inventor
Fritz Gerwien
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.)
Caterpillar Motoren GmbH and Co KG
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Krupp Mak Maschinenbau GmbH
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Publication of EP0190432A1 publication Critical patent/EP0190432A1/en
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Publication of EP0190432B1 publication Critical patent/EP0190432B1/en
Expired legal-status Critical Current

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    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/32—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for rotating lift valves, e.g. to diminish wear

Definitions

  • the invention relates to a device for rotating plate valves loaded by helical springs in internal combustion engines during the movement of the valve, the spring being arranged between a spring plate and an abutment rotatably arranged via a bearing, the rotational movement of which in relation to a base plate according to the freewheel principle Direction is blocked by means of rolling elements as clamping elements concentrically arranged around the axis of the base plate to provide inclined planes, and as the spring is increasingly tensioned and the poppet valve is released, the rolling elements are relieved and freewheeling while the spring is released and the poppet valve closes relative rotation of the base plate with respect to the spring of the rolling elements is increasingly loaded and fixed.
  • the abutment supporting the valve spring is rotatably mounted on a base plate, a ball bearing being provided to absorb the axial forces, the rotational movement of which in one direction by a Freewheel is locked.
  • the object of the invention is to create a functional arrangement with simple means, which compensates for the manufacturing inaccuracies and ensures a reliable Vietnamese .... assignment of the surfaces in the fixed position.
  • the base plate with receptacles for rolling elements as a cylindrical roller is encircled by the rotatable abutment and the rolling element between an inner wall of the abutment and an associated delimitation.
  • Surface of the receptacle in the base plate is arranged in the manner of an inclined plane to the inner wall of the abutment and that at least the area of the boundary surface for the rolling element in the fixed position is designed as a pivotably inserted plate element which has a flat running surface for the rolling element while its opposite support side for automatic adjustment arched like a circular arc and has a corresponding receiving surface for adjustment parallel to the rolling element axis.
  • a favorable design is achieved in that an odd number of recordings are arranged in the base plate.
  • the rolling element be acted upon in the clamping direction by a spring, in particular a leaf spring.
  • the plate element be designed as a hard metal plate.
  • a poppet valve 1 of an internal combustion engine is arranged, which is slidably mounted with its valve stem in the valve guide 4 accommodated in the cylinder head 3.
  • a coil spring 5 surrounds the valve stem 2, which is supported at one end against a spring plate 6 and at the other end against an abutment 7.
  • the abutment 7 is mounted with the interposition of a ball bearing 8 on a base plate 9 on the cylinder head 3.
  • a freewheel principle are in the base plate 9 receptacles 10 arranged, which receive a rolling element 11 as a cylindrical roller.
  • the base plate 9 is encircled by the rotatable abutment 7, so that the cylindrical roller 11 rolls between an inner wall 12 of the abutment 7 and a boundary surface 13 of the receptacle 10 in the base plate 9.
  • the boundary surface 13 extends at an angle to the tangent of the line of contact of the cylindrical roller 11 on the inner wall 12, so that there is an inclined plane to the inner wall 12 of the abutment 7 and the cylindrical roller 11 is clamped in one position between the inner wall 12 and the boundary surface 13, while the cylindrical roller 11 'freewheels in the other position.
  • the cylindrical roller 11 is acted upon by a leaf spring 14 in the clamping direction.
  • the area of the boundary surface 13 in the receptacle 10 for the cylindrical roller 11 for the fixed position is formed by a pivotably inserted plate element 15.
  • the plate element 15, which is inserted into a groove 19, has a flat running surface 16, its opposite support side 17 being curved in the shape of a circular arc and a corresponding receiving surface 18 in the base plate 9 for adjustment parallel to the axis of the cylindrical roller 11.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Check Valves (AREA)

Abstract

1. Device for rotating poppet valves (1), which are loaded by helical springs (5), in internal combustion engines during the movement of the valve (1), in which the spring (5) is arranged between a spring plate (6) and a counter bearing (7) which is arranged so as to be rotatable via a bearing and the rotary movement of which with respect to a base plate (9) is stopped in one direction in accordance with the free wheeling principle in that mountings (10), which are arranged concentrically about the axis of the base plate (9) via roller members (11) as clamping members, are provided so as to form inclined planes, and the roller member (11) is relieved of its load and runs freely as the spring (5) is increasingly loaded and the poppet valve (1) opens, while the roller member (11) is increasingly loaded and locked when the load on the spring (5) is released ans the poppet valve (1) closes upon the relative rotation of the base plate (9) with respect to the spring (5), the base plate (9) with mountings (10) for roller members (11) as cylindrical rollers being encompassed in an annular manner by the rotatable counter bearing (7) and the roller member (11) being arranged between an internal wall (12) of the counter bearing (7) and an associated boundary surface (13) of thr mounting in the base plate (9) in the manner of an inclined plane with respect to the internal wall (12) of the counter bearing (7), characterised in that at least the area of the boundary surface (13) for the roller member (11) is formed as a pivotable plate element (15) in the fixed position which comprises a plane rolling surface (16) for the roller member (11), while its opposite bearing side (17) is curved in the manner of a circular arc for automatic adjustment and comprises a corresponding mounting surface (18) in the base plate (9) for adjusting the lines of contact between the roller member (11) and the plate element (15) and between the roller member (11) and the counter bearing (7) parallel to the roller member axis.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Drehen von durch schraubenförmige Federn belasteten Tellerventilen in Brennkraftmaschinen während der Bewegung des Ventils, wobei die Feder zwischen einem Federteller und einem über ein Lager drehbar angeordnetes Widerlager angeordnet ist, dessen Drehbewegung gegenüber einer Grundplatte nach dem Freilaufprinzip in einer Richtung gesperrt ist, indem über Wälzkörper als Klemmkörper konzentrisch um die Achse der Grundplatte angeordnete Aufnahmen unter Bildung von schiefen Ebenen vorgesehen sind sowie beim zunehmenden Spannen der Feder und Öffnen des Tellerventils der Wälzkörper entlastet sowie freiläuft, während beim Entspannen der Feder und Schließen des Tellerventils zum relativen Verdrehen der Grundplatte gegenüber der Feder der Wälzkörper zunehmend belastet sowie festgesetzt wird.The invention relates to a device for rotating plate valves loaded by helical springs in internal combustion engines during the movement of the valve, the spring being arranged between a spring plate and an abutment rotatably arranged via a bearing, the rotational movement of which in relation to a base plate according to the freewheel principle Direction is blocked by means of rolling elements as clamping elements concentrically arranged around the axis of the base plate to provide inclined planes, and as the spring is increasingly tensioned and the poppet valve is released, the rolling elements are relieved and freewheeling while the spring is released and the poppet valve closes relative rotation of the base plate with respect to the spring of the rolling elements is increasingly loaded and fixed.

Durch den Einbau derartiger Vorrichtungen, die bereits in verschiedenen Ausführungsformen bekannt sind, wird insbesondere bei mit Schweröl betriebenen Dieselmotoren der Ansatz von Verbrennungsrückständen am Ventilsitz verhindert, wodurch der Verschleiß verringert und die Standzeit der Ventile verlängert werden kann.The installation of such devices, which are already known in various embodiments, prevents the build-up of combustion residues on the valve seat, in particular in the case of diesel engines operated with heavy oil, as a result of which wear is reduced and the service life of the valves can be extended.

Bei einer bekannten Vorrichtung zum Drehen der Ventile, bei der die Drehbewegung durch die Torsionsarbeit der Ventilfeder eingeleitet wird, ist das die Ventilfeder abstützende Widerlager drehbar auf einer Grundplatte gelagert, wobei zur Aufnahme der Axialkräfte ein Kugellager vorgesehen ist, dessen Drehbewegung in einer Richtung durch einen Freilauf gesperrt ist.In a known device for rotating the valves, in which the rotational movement is initiated by the torsional work of the valve spring, the abutment supporting the valve spring is rotatably mounted on a base plate, a ball bearing being provided to absorb the axial forces, the rotational movement of which in one direction by a Freewheel is locked.

Der Mangel bei dieser bekannten Anordnung besteht darin, daß kein einwandfreier Betrieb für alle Drehzahlbereiche ermöglicht wird. Ferner treten durch nicht zu beherrschende Fertigungsungenauigkeiten Auswirkungen auf den Freilauf bzw. für seine festgesetzte Stellung auf, die zum vorzeitigen Verschleiß und letztendlich zum Ausfall der Vorrichtung führen,The deficiency in this known arrangement is that it does not operate properly for all speed ranges is made possible. Furthermore, manufacturing inaccuracies that cannot be controlled have effects on the freewheel or on its fixed position, which lead to premature wear and ultimately to the failure of the device,

Die Aufgabe der Erfindung ist es, mit einfachen Mitteln eine funktionsfähige Anordnung zu schaffen, die die Fertigungsungenauigkeiten ausgleicht und eine zuverlässige..... Zuordnung der Flächen in der festgesetzten Stellung ge-..... währleistet.The object of the invention is to create a functional arrangement with simple means, which compensates for the manufacturing inaccuracies and ensures a reliable ..... assignment of the surfaces in the fixed position.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß die Grundplatte mit Aufnahmen für Wälzkörper als Zylinderrolle vom verdrehbaren Widerlager ringartig umfaßt wird und der Wälzkörper zwischen einer Innenwandung des Widerlagers und einer zugeordneten Begrenzungs-. fläche der Aufnahme in der Grundplatte in der Art einer schiefen Ebene zur Innenwandung des Widerlagers angeordnet ist und daß mindestens der Bereich der Begrenzungsfläche für den Wälzkörper in der festgesetzten Stellung als verschwenkbar eingesetztes Plattenelement ausgebildet ist, das eine plane Lauffläche für den Wälzköirper aufweist, während seine gegenüberliegende Auflagerseite zur selbsttätigen Einstellung kreisbogenartig gewölbt und eine korrespondierende Aufnahmefläche zur Einstellung parallel zur Wälzkörperachse aufweist. Hiermit wird auf einfache Weise eine Anordnung ermöglicht, die in der festgesetzten Stellung des Freilaufs eine einwandfreie Zuordnung der Flächen für den Wälzkörper ermöglicht um eine Festsetzung des Wälzkörpers durchzuführen. Dabei werden die entsprechend auftretenden Fertigungstoleranzen durch die selbsttätige Einstellung des Plattenelementes über seine Auflageseite ausgeglichen.This object is achieved according to the invention in that the base plate with receptacles for rolling elements as a cylindrical roller is encircled by the rotatable abutment and the rolling element between an inner wall of the abutment and an associated delimitation. Surface of the receptacle in the base plate is arranged in the manner of an inclined plane to the inner wall of the abutment and that at least the area of the boundary surface for the rolling element in the fixed position is designed as a pivotably inserted plate element which has a flat running surface for the rolling element while its opposite support side for automatic adjustment arched like a circular arc and has a corresponding receiving surface for adjustment parallel to the rolling element axis. In this way, an arrangement is made possible in a simple manner, which, in the fixed position of the freewheel, enables the surfaces for the rolling element to be assigned correctly in order to fix the rolling element. The corresponding manufacturing tolerances are compensated for by the automatic adjustment of the plate element on its support side.

Eine günstige Ausbildung wird dadurch erreicht, daß eine ungerade Anzahl von Aufnahmen in der Grundplatte angeordnet sind.A favorable design is achieved in that an odd number of recordings are arranged in the base plate.

Um einen einwandfreien Betrieb auch bei auftretenden Schwingungen und Motorresonanz zu ermöglichen, wird vorgeschlagen, daß der Wälzkörper in Klemmrichtung durch eine Feder, insbesondere eine Blattfeder, beaufschlagt ist.In order to enable trouble-free operation even when vibrations and motor resonance occur, it is proposed that the rolling element be acted upon in the clamping direction by a spring, in particular a leaf spring.

Ferner wird vorgeschlagen, daß das Plattenelement als Hartmetallplättchen ausgebilddet ist.It is also proposed that the plate element be designed as a hard metal plate.

In der Zeichnung ist ein AusfUhrungsbeispiel der Erfindung schematisch dargestellt. Es zeigen:

  • Fig. 1 einen Längsschnitt durch eine Vorrichtung mit einem Ventil im Zylinderkopf,
  • Fig. 2 einen Schnitt durch eine Grundplatte mit Widerlager,
  • Fig. 3 einen Querschnitt nach Linie III-III der Fig. 2,
  • Fig. 4 eine Draufsicht auf ein Plattenelement im vergrößerten Maßstab,
  • Fig. 5 eine Seitenansicht gemäß Fig. 4.
An exemplary embodiment of the invention is shown schematically in the drawing. Show it:
  • 1 shows a longitudinal section through a device with a valve in the cylinder head,
  • 2 shows a section through a base plate with an abutment,
  • 3 shows a cross section along line III-III of FIG. 2,
  • 4 is a plan view of a plate element on an enlarged scale,
  • 5 is a side view of FIG .. 4

Bei der dargestellten Anordnung ist ein Tellerventil 1 einer Brennkraftmaschine angeordnet, das mit seinem Ventilschaft in der im Zylinderkopf 3 aufgenommenen Ventilführung 4 gleitend gelagert ist. Hierbei umgibt eine Schraubenfeder 5 den Ventilschaft 2, die sich mit ihrem einen Ende gegen einen Federteller 6 und mit ihrem anderen Ende gegen ein Widerlager 7 abstützt.In the arrangement shown, a poppet valve 1 of an internal combustion engine is arranged, which is slidably mounted with its valve stem in the valve guide 4 accommodated in the cylinder head 3. Here, a coil spring 5 surrounds the valve stem 2, which is supported at one end against a spring plate 6 and at the other end against an abutment 7.

Das Widerlager 7 ist unter Zwischenschaltung eines Kugellagers 8 auf einer Grundplatte 9 am Zylinderkopf 3 gelagert. Zur Ausbildung eines Freilaufprinzips sind in der Grundplatte 9 Aufnahmen 10 angeordnet, die einen Wälzkörper 11 als Zylinderrolle aufnehmen. Die Grundplatte 9 wird vom verdrehbaren Widerlager 7 ringartig umfaßt, so daß die Zylinderrolle 11 zwischen einer Innenwandung 12 des Widerlagers 7 und einer Begrenzungsfläche 13 der Aufnahme 10 in der Grundplatte 9 abrollt. Hierbei verläuft die Begrenzungsfläche 13 in einem Winkel zur Tangente der Berührungslinie der Zylinderrolle 11 an der Innenwandung 12, so daß sich eine schiefe Ebene zur Innenwandung 12 des Widerlagers 7 ergibt und die Zylinderrolle 11 in der einen Lage zwischen Innenwandung 12 und Begrenzungsfläche 13 geklemmt wird, während die Zylinderrolle 11'in der anderen Lage freiläuft, In diesem Fall wird die Zylinderrolle 11 im Klemmrichtung durch eine Blattfeder 14 beaufschlagt.The abutment 7 is mounted with the interposition of a ball bearing 8 on a base plate 9 on the cylinder head 3. To develop a freewheel principle are in the base plate 9 receptacles 10 arranged, which receive a rolling element 11 as a cylindrical roller. The base plate 9 is encircled by the rotatable abutment 7, so that the cylindrical roller 11 rolls between an inner wall 12 of the abutment 7 and a boundary surface 13 of the receptacle 10 in the base plate 9. Here, the boundary surface 13 extends at an angle to the tangent of the line of contact of the cylindrical roller 11 on the inner wall 12, so that there is an inclined plane to the inner wall 12 of the abutment 7 and the cylindrical roller 11 is clamped in one position between the inner wall 12 and the boundary surface 13, while the cylindrical roller 11 'freewheels in the other position. In this case, the cylindrical roller 11 is acted upon by a leaf spring 14 in the clamping direction.

Der Bereich der Begrenzungsfläche 13 in der Aufnahme 10 für die Zylinderrolle 11 für die festgesetzte Stellung ist durch ein verschwenkbar eingesetztes Plattenelement 15 gebildet. Das Plattenelement 15, das in eine Nut 19 eingesetzt ist, weist dabei eine plane Lauffläche 16 auf, wobei seine gegenüberliegende Auflagerseite 17 kreisbogenförmig gewölbt ist und eine korrespondierende Aufnahmefläche 18 in der Grundplatte 9 zur Einstellung parallel zur Achse der Zylinderrolle 11 aufweist.The area of the boundary surface 13 in the receptacle 10 for the cylindrical roller 11 for the fixed position is formed by a pivotably inserted plate element 15. The plate element 15, which is inserted into a groove 19, has a flat running surface 16, its opposite support side 17 being curved in the shape of a circular arc and a corresponding receiving surface 18 in the base plate 9 for adjustment parallel to the axis of the cylindrical roller 11.

Der Funktionsablauf ist wie folgt:

  • Über den nicht näher gezeigten Ventilantrieb wird das Tellerventil 1 über seinen Ventilschaft 2 in Axialrichtung in die Öffnungsstellung bewegt. Die Schraubenfeder 5 wird dabei zusammengedrückt und dreht sich in Spiralrichtung. Da das Widerlager 7 über das Kugellager 8 angeordnet ist, macht das Widerlager 7 den Weg der Federdrehung entsprechend Pfeil 20 mit. Hierbei wird die Zylinderolle 11 aus ihrer Klemmstellung gelöst indem sie in die Stellung 11' abrollt. Dabei wird das Ventil 1 gedreht.
The functional sequence is as follows:
  • The poppet valve 1 is moved via its valve stem 2 in the axial direction into the open position via the valve drive (not shown in more detail). The coil spring 5 is compressed and rotates in the spiral direction. Since the abutment 7 is arranged over the ball bearing 8, the abutment 7 follows the path of the spring rotation according to arrow 20. Here, the cylindrical roller 11 is released from its clamping position by rolling into the position 11 '. The valve 1 is rotated.

Beim Schließvorgang des Ventils 1 wird die Schraubenfeder 5 entspannt und hat das Bestreben, in ihre Ausgangslage sich zurückzudrehen. Durch diese eingeleitete Drehrichtung wird die Zylinderrolle 11 in ihre Ausgangsposition, d.h. in eine Klemmstellung, zwischen der Innenwandung 12 und der Begrenzungsfläche 13 der Aufnahme 10 gebracht, so daß die Rückdrehbewegung verhindert wird und das Ventil in einer versetzten Stellung abdichtet.When the valve 1 closes, the coil spring 5 is relaxed and tends to exit into it was able to turn back. As a result of this initiated direction of rotation, the cylindrical roller 11 is brought into its starting position, ie into a clamping position, between the inner wall 12 and the boundary surface 13 of the receptacle 10, so that the backward rotation is prevented and the valve seals in an offset position.

Diese Klemmstellung der Zylinderrolle 11 wird nur korrekt gewährleistet, wenn die Zylinderrolle 11 an ihren Berührungslinien mit der Innenwandung 12 und der Begrenzungsfläche 13 parallel gestützt wird. Die Aufgabe der Pa- rallelstellung wird über das Plattenelement 15 erreicht, da die Auflagerseite 17 kreisbogenförmig gewölbt ist und eine korrespondierende Aufnahmefläche 18 aufweist. Durch die damit durchführbare Schwenkmöglichkeit des Plattenelementes 15 ist immer eine einwandfreie Klemmstellung der Zylinderrolle 11 einstellbar.This clamping position of the cylindrical roller 11 is only correctly ensured if the cylindrical roller 11 is supported in parallel on its lines of contact with the inner wall 12 and the boundary surface 13. The object of the Pa - rallelstellung is achieved by the plate member 15 since the Auflagerseite is curved circular arc 17 and a corresponding receiving surface of eighteenth Due to the fact that the plate element 15 can be pivoted, a perfect clamping position of the cylindrical roller 11 can always be set.

Claims (4)

1. Vorrichtung zum Drehen von durch schraubenförmige Federn belasteten Tellerventilen in Brennkraftmaschinen während der Bewegung des Ventils, wobei die Feder zwischen einem Federteller und einem über ein Lager drehbar angeordnetes Widerlager angeord- net ist, dessen Drehbewegung gegenüber einer Grundplatte nach dem Freilaufprinzip in einer Richtung gesperrt ist, indem über Wälzkörper als Klemmkör- per konzentrisch um die Achse der Grundplatte angeordnete Aufnahmen unter Bildung von schiefen Ebenen vorgesehen sind sowie beim zunehmenden Spannen der Feder und Öffnen des Tellerventils der Wälzkörper entlastet sowie freiläuft, während beim Entspannen der Feder und Schließen des Tellerventils zum relativen Verdrehen der Grundplatte gegenüber der Feder der Wälzkörper zunehmend belastet sowie festgesetzt wird, dadurch gekennzeichnet, daß die Grundplatte (9) mit Aufnahmen (10) für Wälzkörper (11) als Zylinderrolle vom verdrehbaren Widerlager (7) ringartig umfaßt wird und der Wälzkörper (11) zwischen einer.Innenwandung (12) des Widerlagers (7) und einer zugeordneten Begrenzungsfläche (13) der Aufnahme in der Grundplatte (9) in der Art einer schiefen Ebene zur Innenwandung (12) des Widerlagers (7) angeordnet ist und daß mindestens der Bereich der Begrenzungsfläche (13) für den Wälzkörper (11) in der festgesetzten Stellung als verschwenkbar eingesetztes Plattenelement (15) ausgebildet ist, das eine plane Lauffläche (16) für den Wälzkörper (11) aufweist, während seine gegenüberliegende Auflagerseite (17) zur selbsttätigen Einstellung kreisbogenartig gewölbt und eine korrespondierende Aufnahmefläche (18) zur Einstellung parallel zur Wälzkörperachse aufweist.1. Device for rotating poppet valves loaded by helical springs in internal combustion engines during the movement of the valve, the spring being arranged between a spring plate and an abutment rotatably arranged via a bearing, the rotational movement of which is blocked in one direction with respect to a base plate according to the freewheeling principle is provided by means of rolling elements as clamping bodies concentrically arranged around the axis of the base plate to form inclined planes, and as the spring is tensioned and the poppet valve is opened, the rolling elements are relieved and freewheeling while the spring is released and the poppet valve closes relative rotation of the base plate relative to the spring of the rolling elements is increasingly loaded and fixed, characterized in that the base plate (9) with receptacles (10) for rolling elements (11) as a cylindrical roller is encircled by the rotatable abutment (7) and the rolling element (11 ) z wipe an inner wall (12) of the abutment (7) and an associated boundary surface (13) of the receptacle in the base plate (9) in the manner of an inclined plane to the inner wall (12) of the abutment (7) and that at least the area the boundary surface (13) for the rolling element (11) in the fixed position is designed as a pivotably inserted plate element (15) which has a flat running surface (16) for the rolling element (11), while its opposite support side (17) for automatic adjustment arched like a circular arc and has a corresponding receiving surface (18) for adjustment parallel to the rolling element axis. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine ungerade Anzahl von Aufnahmen (10) in der Grundplatte (9) angeordnet sind.2. Device according to claim 1, characterized in that an odd number of receptacles (10) are arranged in the base plate (9). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Wälzkörper (11) in Klemmrichtung durch eine Feder (14), insbesondere eine Blattfeder, beaufschlagt ist.3. Apparatus according to claim 1 or 2, characterized in that the rolling body (11) in the clamping direction by a spring (14), in particular a leaf spring, is acted upon. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Plattenelement (15) als Hartmetallplättchen ausgebildet ist.4. Device according to one of claims 1 to 3, characterized in that the plate element (15) is designed as a hard metal plate.
EP85115500A 1985-01-16 1985-12-06 Valve-rotating device Expired EP0190432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3501221 1985-01-16
DE19853501221 DE3501221A1 (en) 1985-01-16 1985-01-16 DEVICE FOR TURNING PLATE VALVES

Publications (2)

Publication Number Publication Date
EP0190432A1 true EP0190432A1 (en) 1986-08-13
EP0190432B1 EP0190432B1 (en) 1987-09-23

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Application Number Title Priority Date Filing Date
EP85115500A Expired EP0190432B1 (en) 1985-01-16 1985-12-06 Valve-rotating device

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EP (1) EP0190432B1 (en)
JP (1) JPS61164007A (en)
DE (2) DE3501221A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088097A1 (en) * 2003-04-04 2004-10-14 Friedrich Engesser Valve rotating device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818932C1 (en) * 1988-06-03 1989-06-01 Mtu Friedrichshafen Gmbh
DE102009012813A1 (en) 2009-03-12 2010-09-16 Mtu Friedrichshafen Gmbh Method and device for controlling a ship propulsion system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775785A1 (en) * 1968-09-24 1971-09-23 Caterpillar Tractor Co Cam follower for rotating cam disks
FR2075752A5 (en) * 1970-01-27 1971-10-08 Maerkisches Werk Gmbh
DE3040519A1 (en) * 1980-10-28 1982-05-27 Industriewerk Schaeffler Ohg, 8522 Herzogenaurach Coil spring-loaded IC engine valve - is rotatable in one direction, with springs supported on upper race of axial-radial bearing
DE3304878A1 (en) * 1983-02-12 1984-08-16 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Device for rotating internal combustion engine valves loaded by helical springs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775785A1 (en) * 1968-09-24 1971-09-23 Caterpillar Tractor Co Cam follower for rotating cam disks
FR2075752A5 (en) * 1970-01-27 1971-10-08 Maerkisches Werk Gmbh
DE3040519A1 (en) * 1980-10-28 1982-05-27 Industriewerk Schaeffler Ohg, 8522 Herzogenaurach Coil spring-loaded IC engine valve - is rotatable in one direction, with springs supported on upper race of axial-radial bearing
DE3304878A1 (en) * 1983-02-12 1984-08-16 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Device for rotating internal combustion engine valves loaded by helical springs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088097A1 (en) * 2003-04-04 2004-10-14 Friedrich Engesser Valve rotating device

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Publication number Publication date
EP0190432B1 (en) 1987-09-23
JPS61164007A (en) 1986-07-24
DE3560687D1 (en) 1987-10-29
DE3501221A1 (en) 1986-07-17

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