EP0798449A1 - Device for setting the relative angular position of a shaft, in particular a camshaft for an internal combustion engine - Google Patents

Device for setting the relative angular position of a shaft, in particular a camshaft for an internal combustion engine Download PDF

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Publication number
EP0798449A1
EP0798449A1 EP97100814A EP97100814A EP0798449A1 EP 0798449 A1 EP0798449 A1 EP 0798449A1 EP 97100814 A EP97100814 A EP 97100814A EP 97100814 A EP97100814 A EP 97100814A EP 0798449 A1 EP0798449 A1 EP 0798449A1
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EP
European Patent Office
Prior art keywords
stop
shaft
adjusting element
adjusting
adjusting device
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Granted
Application number
EP97100814A
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German (de)
French (fr)
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EP0798449B1 (en
Inventor
Leonhard Halmanseger
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution

Definitions

  • the invention relates to an adjusting device for the relative angular adjustment of a driven shaft of the type described in the preamble of claim 1.
  • such adjusting devices are preferably hydraulically controlled, for various reasons residual oil remaining between the stop and the adjusting element of the adjusting device can cause the adjusting element not to reach the starting position designed for a machine reference position (for example ignition TDC / cylinder 1 of the internal combustion engine) reached.
  • An exact setting of this starting position of the adjusting element is an essential prerequisite for a valve-controlled internal combustion engine with regard to the required compliance with prescribed exhaust gas values.
  • the exact setting of this starting position is therefore of crucial importance both when installing an internal combustion engine for the first time and when the internal combustion engine is to be repaired.
  • the exact setting of the starting position is particularly difficult in an adjusting device with a hydraulic stop-damping device based on the principle of displacement between striking component surfaces.
  • the invention has for its object to further develop the generic actuating device such that the process of striking the adjusting element against the stop associated with it, which is not visually observable by a worker because of the closed design of the regulating device and can hardly be felt with relatively viscous oil.
  • the advantage of the invention is to be seen in a precise setting of the valve timing both in series assembly and in customer service for repairing the internal combustion engine.
  • the signaling device can be an oil-tight pointing pin protruding from a free end face of the stop.
  • an electrically / electronically controllable signal device is preferably provided, which serves for a visual and / or acoustic display and / or for controlling an automatic assembly machine or an automatically working tool.
  • the adjusting element in the stop position is connected to a contact of an electrical line section which is part of a supply or control circuit of the signaling device.
  • the contact including the line section, is arranged in a stop formed from electrical insulating material, the line section having a connection point at the end remote from the contact in the region of the free end face of the stop. This connection point serves to connect the circuit of the signal device, which on the other hand is connected to ground.
  • a plurality of contacts which are electrically connected to one another are arranged in a distributed manner at the stop and, if appropriate, are developed into an annular contact.
  • the signal device according to the invention can be used particularly advantageously in an actuating device which comprises an adjusting element which can be displaced in a housing by means of a hydraulically actuated piston and to which a hydraulic stop damping device is assigned on the stop side.
  • the worker specifically effects the exact setting of the starting position of the adjusting element in an adjusting device with and without a stop damping device
  • the active connection is such that when the drive wheel and the shaft are fixed in rotation, the adjusting element is displaced or pulled into the stop position by means of a rotary movement of a bearing bush via an attachable tool about a loosened central screwing of the adjusting device with the shaft.
  • the procedure described above can be carried out with hand tools when the internal combustion engine is to be repaired.
  • the aforementioned procedure according to the invention can be largely automated in the series production of an internal combustion engine.
  • the actuating device is designed in a further embodiment according to the invention in such a way that the bearing bush has on the end side devices for rotational engagement of an automatic lathe stop, and that the central screw connection has a screw head which can be gripped by an automatic screw machine, and that the rotary automatic lathe is arranged coaxially Automatic screwdriver is controlled via the signaling device which is energized in the stop position of the adjusting element.
  • a process-reliable mounting of the actuating device on the shaft is achieved, the rotationally fixed screwing of the actuating device to the shaft or camshaft only taking place when the signaling device is activated, which corresponds to the exact setting of the stop position of the adjusting element related to a machine reference position.
  • the exact stop position of the adjusting element also corresponds to the so-called late adjustment of the camshaft to the late stop of the adjusting element. In this way, an exact setting of the valve timing is advantageously achieved.
  • the invention has the further advantage that the friction in the toothing, the oil level and the oil viscosity and also mechanical tolerances of the adjusting device are without effect on the setting accuracy of the adjusting device relative to the camshaft.
  • An adjusting device 10 for the relative angular adjustment of a camshaft 11 of an internal combustion engine 12 (not shown in detail) relative to a drive wheel 13 driven by the crankshaft comprises an adjusting element 14 which, by means of toothings 15, 15 'and 16, 16' arranged in pairs, rotates the drive wheel 13 with the camshaft 11 in a rotationally fixed manner connects and by means of a hydraulically loaded Piston 17 via the shaft and drive-side toothings 15, 15 'and 16, 16' controlled axially displaceable between the positions designated 18 and 19.
  • the adjusting element 14 is with the piston 17 in the position 18 in a stop position related to the ignition TDC of the first cylinder of the internal combustion engine, which is the outermost in relation to the camshaft 11, to the above-mentioned.
  • Machine reference position related late position corresponds.
  • the adjusting element 14 bears against an annular stop 20 of the adjusting device 10 via its piston 17.
  • the adjusting device 10 When the adjusting device 10 is mounted on the camshaft 11 - in series production of the internal combustion engine 12 or when it is repaired in a workshop - the adjusting device 10 is relative to the detached or rotationally fixed camshaft 11 for an exact setting of the control times of the gas exchange valves (not shown) of the internal combustion engine 12 to be connected in a rotationally fixed manner in the stop position 18.
  • the ignition engine 12 is in an assembly-dependent reference position in the 1st cylinder - a signaling device 21 indicating the stop position 18 of the adjusting element 14 or the piston 17 on the stop 20 is provided.
  • the preferably electrically / electronically controllable signal device 21 serves to provide an optical and / or acoustic display of the stop position 18 of the adjusting element 14 or its piston 17.
  • the signaling device 21 serves to control an automatic screwdriver 22, the use of which is described later.
  • the signaling device 21 comprises a contact 23 of an electrical line section 24 which is acted upon by the adjusting element 14 or the piston 17 in the stop position 18 and which is part of a supply or control circuit 25.
  • Each contact 23, including its line section 24, is preferably arranged in a stop 20 formed from electrically insulating plastic, each line section 24 having a connection point 27 at the end remote from the contact in the region of the free end face 26 of the stop 20 for closing the respective circuit 25.
  • the piston 17 which is fixedly connected to the adjusting element 14 on the stop side has an annular projection 28 which, when approaching the stop position 18, plunges into an annular groove 29 in the stop 20, with the projection 28 and groove 29 being dimensionally matched to one another are that a hydraulic stop damping device 30 is achieved.
  • a further advantageous embodiment of the adjusting device is 10 provided.
  • the stop 20 is in a kinematic operative connection on the drive side via the second pair of teeth 16, 16 'with the adjusting element 14 connected on the shaft side via the first pair of teeth 15, 15' in such a way that with the drive wheel held in a rotationally fixed manner 13 and rotationally fixed camshaft 11 by means of a rotary movement of a bearing bush 37 bearing the toothing 15 via an attachable tool 32 around a slightly tightened central screw connection 33 of the actuating device 10 with the camshaft 11, the adjusting element 14 or the piston 17 is displaced into the stop position 18, residual oil being removed the damping device 30 is displaced.
  • the bearing bush 37 has on the end side devices 34 for rotational engagement of an automatic lathe 32 ′, and the central screw connection 33 also has one of these Automatic screwdriver 22 graspable screw head 35, wherein the automatic screwdriver 22 coaxially arranged with the automatic lathe 32 'is controlled via the signaling device 21, which is energized in the stop position 18 of the adjusting element 14 or the piston 17, for firmly screwing the adjusting device 10 to the camshaft 11 via the Central screw connection 33.

Abstract

The setting device uses a controlled setting element (14) for adjustment of the camshaft (11) via a drive wheel (13) using intermeshing pairs of cogs (15,15' ; 16,16'), with a stop (20) defining a reference position for the engine. The exact angular positioning of the setting device during the assembly of the engine is facilitated by an electrical or electronic signal device (21) indicating the stop position of the setting device upon contact with the latter stop.

Description

Die Erfindung betrifft eine Stellvorrichtung zur relativen Winkelverstellung einer angetriebenen Welle der im Oberbegriff des Patentanspruches 1 beschriebenen Bauart.The invention relates to an adjusting device for the relative angular adjustment of a driven shaft of the type described in the preamble of claim 1.

Bekanntlich sind derartige Stellvorrichtungen vorzugsweise hydraulisch gesteuert/geregelt, wobei aus verschiedenen Gründen zwischen dem Anschlag und dem Verstellelement der Stellvorrichtung verbliebenes Restöl bewirken kann, daß das Verstellelement die auf eine Maschinen-Referenzstellung (z.B. Zünd-OT/Zylinder 1 der Brennkraftmaschine) ausgelegte Ausgangsposition nicht erreicht. Eine exakte Einstellung dieser Ausgangsposition des Verstellelementes ist bei einer ventilgesteuerten Brennkraftmaschine im Hinblick auf die erforderliche Einhaltung vorgeschriebener Abgaswerte wesentliche Voraussetzung. Die exakte Einstellung dieser Ausgangsposition ist sowohl bei der Erstmontage einer Brennkraftmaschine als auch im Reparaturfall der Brennkraftmaschine daher von ausschlaggebender Bedeutung. Weiter ist die exakte Einstellung der Ausgangsposition bei einer Stellvorrichtung mit einer auf dem Verdrängungsprinzip zwischen anschlagenden Bauteilflächen beruhenden hydraulischen Anschlag-Dämpfungseinrichtung besonders schwierig.As is known, such adjusting devices are preferably hydraulically controlled, for various reasons residual oil remaining between the stop and the adjusting element of the adjusting device can cause the adjusting element not to reach the starting position designed for a machine reference position (for example ignition TDC / cylinder 1 of the internal combustion engine) reached. An exact setting of this starting position of the adjusting element is an essential prerequisite for a valve-controlled internal combustion engine with regard to the required compliance with prescribed exhaust gas values. The exact setting of this starting position is therefore of crucial importance both when installing an internal combustion engine for the first time and when the internal combustion engine is to be repaired. Furthermore, the exact setting of the starting position is particularly difficult in an adjusting device with a hydraulic stop-damping device based on the principle of displacement between striking component surfaces.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Stellvorrichtung derart weiterzubilden, daß der von einem Werker optisch wegen der geschlossen gestalteten Stellvorrichtung nicht beobachtbare und bei relativ zähem Öl kaum fühlbare Vorgang des Anschlagens des Verstellelementes gegen den ihm zugeordneten Anschlag zuverlässig angezeigt ist.The invention has for its object to further develop the generic actuating device such that the process of striking the adjusting element against the stop associated with it, which is not visually observable by a worker because of the closed design of the regulating device and can hardly be felt with relatively viscous oil.

Diese Aufgabe ist mit dem Patentanspruch 1 gelöst und zwar in der Weise, daß in einer montageabhängigen Referenzstellung der Maschine eine die Anschlagposition des Verstellelementes am Anschlag anzeigende Signaleinrichtung vorgesehen ist.This object is achieved with claim 1 in such a way that a signaling device indicating the stop position of the adjusting element at the stop is provided in an assembly-dependent reference position of the machine.

Der Vorteil der Erfindung ist in einer genauen Einstellung der Ventilsteuerzeiten sowohl in der Serienmontage als auch im Kundendienst bei Reparatur der Brennkraftmaschine zu sehen.The advantage of the invention is to be seen in a precise setting of the valve timing both in series assembly and in customer service for repairing the internal combustion engine.

Die erfindungsgemäße Signaleinrichtung kann im einfachsten Fall ein öldicht aus einer freien Stirnseite des Anschlages hervortretender Zeigestift sein. Vorzugsweise ist jedoch eine elektrisch/elektronisch ansteuerbare Signaleinrichtung vorgesehen, die einer optischen und/oder akustischen Anzeige und/oder einer Ansteuerung eines Montageautomaten bzw. eines automatisch arbeitenden Werkzeuges dient.In the simplest case, the signaling device according to the invention can be an oil-tight pointing pin protruding from a free end face of the stop. However, an electrically / electronically controllable signal device is preferably provided, which serves for a visual and / or acoustic display and / or for controlling an automatic assembly machine or an automatically working tool.

Um einen im Aufbau einfachen Geberteil in der Stellvorrichtung der Signaleinrichtung zu erzielen, steht in weiterer Ausgestaltung der Erfindung das Verstellelement in Anschlagposition mit einem Kontakt eines elektrischen Leitungsabschnittes in Verbindung, der Teil eines Versorgungs- oder Steuer-Stromkreises der Signaleinrichtung ist.In order to achieve a structurally simple transmitter part in the actuating device of the signaling device, in a further embodiment of the invention the adjusting element in the stop position is connected to a contact of an electrical line section which is part of a supply or control circuit of the signaling device.

In bevorzugter Ausgestaltung des Geberteiles ist der Kontakt einschließlich des Leitungsabschnittes in einem aus elektrischem Isolierstoff gebildeten Anschlag angeordnet, wobei der Leitungsabschnitt am kontaktfernen Ende im Bereich der freien Stirnseite des Anschlages eine Verbindungsstelle aufweist. Diese Verbindungsstelle dient dem Anschluß des Stromkreises der Signaleinrichtung, die andererseits auf Masse gelegt ist.In a preferred configuration of the transmitter part, the contact, including the line section, is arranged in a stop formed from electrical insulating material, the line section having a connection point at the end remote from the contact in the region of the free end face of the stop. This connection point serves to connect the circuit of the signal device, which on the other hand is connected to ground.

Um eine mit der Signaleinrichtung erzielte Anzeige bzw. Ansteuerung sicherzustellen, sind mehrere miteinander elektrisch verbundene Kontakte am Anschlag verteilt angeordnet, die gegebenenfalls zu einem ringförmigen Kontakt weitergebildet sind.In order to ensure a display or control achieved with the signal device, a plurality of contacts which are electrically connected to one another are arranged in a distributed manner at the stop and, if appropriate, are developed into an annular contact.

Die erfindungsgemäße Signaleinrichtung ist besonders vorteilhaft verwendbar bei einer Stellvorrichtung, die ein mittels eines hydraulisch beaufschlagten Kolbens in einem Gehäuse verlagerbares Verstellelement umfaßt, dem anschlagseitig eine hydraulische Anschlag-Dämpfungseinrichtung zugeordnet ist.The signal device according to the invention can be used particularly advantageously in an actuating device which comprises an adjusting element which can be displaced in a housing by means of a hydraulically actuated piston and to which a hydraulic stop damping device is assigned on the stop side.

Damit der Werker bei einer Stellvorrichtung mit und ohne Anschlag-Dämpfungseinrichtung jeweils die exakte Einstellung der Ausgangsposition des Verstellelementes gezielt bewirkt, wird in weiterer Ausgestaltung der Stellvorrichtung vorgeschlagen, daß der Anschlag antriebsseitig über ein zweites Verzahnungspaar mit dem wellenseitig über ein erstes Verzahnungspaar verbundenen Verstellelement in kinematischer Wirkverbindung steht derart, daß bei drehfest gehaltenem Antriebsrad und drehfixierter Welle mittels einer Drehbewegung einer Lagerbuchse über ein ansetzbares Werkzeug um eine gelöste Zentralverschraubung der Stellvorrichtung mit der Welle das Verstellelement in Anschlagposition verlagert bzw. gezogen ist. Mit dieser erfinderischen Ausgestaltung wird unter Ausnützung der zueinander unterschiedlich gerichteten antriebseitigen und wellenseitigen Verzahnungen ohne großen Kraftaufwand das jeweilige Restöl sicher verdrängt, wobei mit der wirksam werdenden Signaleinrichtung die Verschraubung der Stellvorrichtung mit der Welle in der angezeigten exakten Anschlagposition eingeleitet wird.So that the worker specifically effects the exact setting of the starting position of the adjusting element in an adjusting device with and without a stop damping device, it is proposed in a further embodiment of the adjusting device that the stop on the drive side via a second pair of teeth with the adjusting element connected on the shaft side via a first pair of teeth in kinematic The active connection is such that when the drive wheel and the shaft are fixed in rotation, the adjusting element is displaced or pulled into the stop position by means of a rotary movement of a bearing bush via an attachable tool about a loosened central screwing of the adjusting device with the shaft. With this inventive design, the respective residual oil is reliably displaced without great effort, using the differently directed drive-side and shaft-side toothings, the screwing of the actuating device to the shaft being initiated in the indicated exact stop position with the signaling device that becomes effective.

Die vorbeschriebene Vorgehensweise kann im Reparaturfall der Brennkraftmaschine mit Handwerkzeugen durchgeführt werden. Die vorgenannte, erfindungsgemäße Vorgehensweise kann in der Serienfertigung einer Brennkraftmaschine weitestgehend automatisiert werden. Hierfür ist die Stellvorrichtung in weiterer erfindungsgemäßer Ausgestaltung derart ausgebildet, daß die Lagerbuchse stirnseitig Einrichtungen zum Dreheingriff eines Anschlag-Drehautomaten aufweist, und daß die Zentralverschraubung einen von einem Schraubautomaten faßbaren Schraubenkopf aufweist, und daß der zum Anschlag-Drehautomaten koaxial angeordnete Schraubautomat über die in Anschlagposition des Verstellelementes bestromte Signaleinrichtung angesteuert ist.The procedure described above can be carried out with hand tools when the internal combustion engine is to be repaired. The aforementioned procedure according to the invention can be largely automated in the series production of an internal combustion engine. For this purpose, the actuating device is designed in a further embodiment according to the invention in such a way that the bearing bush has on the end side devices for rotational engagement of an automatic lathe stop, and that the central screw connection has a screw head which can be gripped by an automatic screw machine, and that the rotary automatic lathe is arranged coaxially Automatic screwdriver is controlled via the signaling device which is energized in the stop position of the adjusting element.

Mit dieser erfinderischen Ausgestaltung ist eine prozeßsichere Montage der Stellvorrichtung an der Welle erreicht, wobei die drehfeste Verschraubung der Stellvorrichtung mit der Welle bzw. Nockenwelle nur bei aktivierter Signaleinrichtung erfolgt, die der exakten Einstellung der auf eine Maschinen-Referenzstellung bezogenen Anschlagposition des Verstellelementes entspricht. Bei mittels einer Nockenwelle ventilgesteuerter Brennkraftmaschine entspricht die exakte Anschlagposition des Verstellelementes im übrigen die sog. Späteinstellung der Nockenwelle dem Spätanschlag des Verstellelementes. Damit ist in vorteilhafter Weise auch eine genaue Einstellung der Steuerzeiten der Ventile erzielt.With this inventive embodiment, a process-reliable mounting of the actuating device on the shaft is achieved, the rotationally fixed screwing of the actuating device to the shaft or camshaft only taking place when the signaling device is activated, which corresponds to the exact setting of the stop position of the adjusting element related to a machine reference position. In the case of an internal combustion engine valve-controlled by means of a camshaft, the exact stop position of the adjusting element also corresponds to the so-called late adjustment of the camshaft to the late stop of the adjusting element. In this way, an exact setting of the valve timing is advantageously achieved.

Die Erfindung ergibt den weiteren Vorteil, daß die Reibung in den Verzahnungen, der Ölstand sowie die Ölviskosität und ferner mechanische Toleranzen der Stellvorrichtung ohne Auswirkung auf die Einstellgenauigkeit der Stellvorrichtung relativ zur Nockenwelle sind.The invention has the further advantage that the friction in the toothing, the oil level and the oil viscosity and also mechanical tolerances of the adjusting device are without effect on the setting accuracy of the adjusting device relative to the camshaft.

Die Erfindung ist anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispiels einer Stellvorrichtung im Längsschnitt beschrieben.The invention is described with reference to a preferred embodiment of an actuating device shown in the drawing in longitudinal section.

Es zeigt

Figur 1
die Stellvorrichtung im Längsschnitt unten mit einem Verstellelement in der Anschlagposition und
Figur 2
die Stellvorrichtung im Längsschnitt oben mit dem Verstellelement in maximaler Winkelverstellung der Nockenwelle relativ zum Antriebsrad.
It shows
Figure 1
the adjusting device in longitudinal section below with an adjusting element in the stop position and
Figure 2
the adjusting device in longitudinal section above with the adjusting element in maximum angular adjustment of the camshaft relative to the drive wheel.

Eine Stellvorrichtung 10 zur relativen Winkelverstellung einer Nockenwelle 11 einer nicht näher gezeigten Brennkraftmaschine 12 gegenüber einem von der Kurbelwelle angetriebenen Antriebsrad 13 umfaßt ein Verstellelement 14, das mittels paarweise angeordneter Verzahnungen 15, 15' und 16, 16' das Antriebsrad 13 mit der Nockenwelle 11 drehfest verbindet und mittels eines hydraulisch beaufschlagten Kolbens 17 über die wellen- und antriebsseitigen Verzahnungen 15, 15' und 16, 16' gesteuert/geregelt axial verlagerbar ist zwischen den mit 18 und 19 bezeichneten Positionen.An adjusting device 10 for the relative angular adjustment of a camshaft 11 of an internal combustion engine 12 (not shown in detail) relative to a drive wheel 13 driven by the crankshaft comprises an adjusting element 14 which, by means of toothings 15, 15 'and 16, 16' arranged in pairs, rotates the drive wheel 13 with the camshaft 11 in a rotationally fixed manner connects and by means of a hydraulically loaded Piston 17 via the shaft and drive-side toothings 15, 15 'and 16, 16' controlled axially displaceable between the positions designated 18 and 19.

Das Verstellelement 14 ist mit dem Kolben 17 in der Position 18 in einer auf den Zünd-OT des ersten Zylinders der Brennkraftmaschine bezogenen Anschlagposition, die in bezug auf die Nockenwelle 11 deren äußerster, auf die o.g. Maschinen-Referenzstellung bezogener Spätstellung entspricht. In dieser Anschlagposition 18 liegt das Verstellelement 14 über seinen Kolben 17 an einem ringfömigen Anschlag 20 der Stellvorrichtung 10 an.The adjusting element 14 is with the piston 17 in the position 18 in a stop position related to the ignition TDC of the first cylinder of the internal combustion engine, which is the outermost in relation to the camshaft 11, to the above-mentioned. Machine reference position related late position corresponds. In this stop position 18, the adjusting element 14 bears against an annular stop 20 of the adjusting device 10 via its piston 17.

Bei einer Montage der Stellvorrichtung 10 an der Nockenwelle 11 - in der Serienfertigung der Brennkraftmaschine 12 oder bei deren Reparatur in einer Werkstätte - ist für eine exakte Einstellung der Steuerzeiten der nicht gezeigten Gaswechselventile der Brennkraftmaschine 12 die Stellvorrichtung 10 relativ zur abgesteckten bzw. drehfixierten Nockenwelle 11 exakt in der Anschlagposition 18 drehfest zu verbinden.When the adjusting device 10 is mounted on the camshaft 11 - in series production of the internal combustion engine 12 or when it is repaired in a workshop - the adjusting device 10 is relative to the detached or rotationally fixed camshaft 11 for an exact setting of the control times of the gas exchange valves (not shown) of the internal combustion engine 12 to be connected in a rotationally fixed manner in the stop position 18.

Da aufgrund der geschlossenen Gestaltung der Stellvorrichtung 10 das exakte mechanische Anliegen des Kolbens 17 des Verstellelementes 14 am Anschlag 20 weder optisch beobachtbar noch bei zähem Öl zwischen Anschlag 20 und Kolben 17 fühlbar ist, ist erfindungsgemäß in einer montageabhängigen Referenzstellung der Brennkraftmaschine 12 - Zünd-OT im 1. Zylinder - eine die Anschlagposition 18 des Verstellelementes 14 bzw. des Kolbens 17 am Anschlag 20 anzeigende Signaleinrichtung 21 vorgesehen.Since, due to the closed design of the actuating device 10, the exact mechanical abutment of the piston 17 of the adjusting element 14 against the stop 20 is neither visually observable nor perceptible in the case of viscous oil between the stop 20 and the piston 17, according to the invention the ignition engine 12 is in an assembly-dependent reference position in the 1st cylinder - a signaling device 21 indicating the stop position 18 of the adjusting element 14 or the piston 17 on the stop 20 is provided.

Die vorzugsweise elektrisch/elektronisch ansteuerbare Signaleinrichtung 21 dient bei einem Reparaturfall der Brennkraftmaschine 12 einer optischen und/oder akustischen Anzeige der Anschlagposition 18 des Verstellelementes 14 bzw. dessen Kolben 17. Für die Montage der Stellvorrichtung 10 in der Serienfertigung der Brennkraftmaschine 12 an der Nockenwelle 11 dient die Signaleinrichtung 21 der Ansteuerung eines Schraubautomaten 22, dessen Einsatz später beschrieben ist.When the internal combustion engine 12 is repaired, the preferably electrically / electronically controllable signal device 21 serves to provide an optical and / or acoustic display of the stop position 18 of the adjusting element 14 or its piston 17. For the assembly of the actuating device 10 in the series production of the internal combustion engine 12 on the camshaft 11 the signaling device 21 serves to control an automatic screwdriver 22, the use of which is described later.

Die Signaleinrichtung 21 umfaßt einen in Anschlagposition 18 vom Verstellelement 14 bzw. vom Kolben 17 beaufschlagten Kontakt 23 eines elektrischen Leitungsabschnittes 24, der Teil eines Versorgungs- oder Steuer-Stromkreises 25 ist. Vorzugsweise ist jeder Kontakt 23 einschließlich seines Leitungsabschnittes 24 in einem aus elektrisch isolierenden Kunststoff gebildeten Anschlag 20 angeordnet, wobei jeder Leitungsabschnitt 24 am kontaktfernen Ende im Bereich der freien Stirnseite 26 des Anschlages 20 eine Verbindungsstelle 27 aufweist zum Schließen des jeweiligen Stromkreises 25.The signaling device 21 comprises a contact 23 of an electrical line section 24 which is acted upon by the adjusting element 14 or the piston 17 in the stop position 18 and which is part of a supply or control circuit 25. Each contact 23, including its line section 24, is preferably arranged in a stop 20 formed from electrically insulating plastic, each line section 24 having a connection point 27 at the end remote from the contact in the region of the free end face 26 of the stop 20 for closing the respective circuit 25.

Aus der Zeichnung ist ersichtlich, daß der mit dem Verstellelement 14 antriebsfest verbundene Kolben 17 anschlagseitig einen ringförmigen Vorsprung 28 aufweist, der bei Annäherung an die Anschlagposition 18 in eine ringförmige Nut 29 im Anschlag 20 eintaucht, wobei Vorsprung 28 und Nut 29 maßlich derart aufeinander abgestimmt sind, daß eine hydraulische Anschlag-Dämpfungseinrichtung 30 erzielt ist. Um den im antriebseitigen Gehäuse 31 öldicht geführt angeordneten Kolben 17 des Verstellelementes 14 bei einer Serien- oder Reparatur-Montage der Stellvorrichtung 10 ohne Restöl in der Dämpfungseinrichtung 30 in Anschlagposition 18 mit den Kontakten 23 in Verbindung zu bringen, ist eine weitere vorteilhafte Ausgestaltung der Stellvorrichtung 10 vorgesehen.From the drawing it can be seen that the piston 17 which is fixedly connected to the adjusting element 14 on the stop side has an annular projection 28 which, when approaching the stop position 18, plunges into an annular groove 29 in the stop 20, with the projection 28 and groove 29 being dimensionally matched to one another are that a hydraulic stop damping device 30 is achieved. In order to connect the piston 17 of the adjusting element 14 arranged in an oil-tight manner in the drive-side housing 31 during series or repair assembly of the adjusting device 10 without residual oil in the damping device 30 in the stop position 18 with the contacts 23, a further advantageous embodiment of the adjusting device is 10 provided.

Zur Erzielung einer exakten Anschlagposition 18 für einen korrekten Spätanschlag der Nockenwelle 11 steht der Anschlag 20 antriebsseitig über das zweite Verzahnungspaar 16, 16' mit dem wellenseitig über das erste Verzahnungspaar 15, 15' verbundenen Verstellelement 14 in kinematischer Wirkverbindung derart, daß bei drehfest gehaltenem Antriebsrad 13 und drehfixierter Nockenwelle 11 mittels einer Drehbewegung einer die Verzahnung 15 tragenden Lagerbuchse 37 über ein ansetzbares Werkzeug 32 um eine leicht angezogene Zentralverschraubung 33 der Stellvorrichtung 10 mit der Nockenwelle 11 das Verstellelement 14 bzw. der Kolben 17 in Anschlagposition 18 verlagert ist, wobei Restöl aus der Dämpfungseinrichtung 30 verdrängt ist.In order to achieve an exact stop position 18 for a correct late stop of the camshaft 11, the stop 20 is in a kinematic operative connection on the drive side via the second pair of teeth 16, 16 'with the adjusting element 14 connected on the shaft side via the first pair of teeth 15, 15' in such a way that with the drive wheel held in a rotationally fixed manner 13 and rotationally fixed camshaft 11 by means of a rotary movement of a bearing bush 37 bearing the toothing 15 via an attachable tool 32 around a slightly tightened central screw connection 33 of the actuating device 10 with the camshaft 11, the adjusting element 14 or the piston 17 is displaced into the stop position 18, residual oil being removed the damping device 30 is displaced.

Für eine weitgehend automatisierte Serienmontage der Stellvorrichtung 10 weist die Lagerbuchse 37 stirnseitig Einrichtungen 34 zum Dreheingriff eines Anschlag-Drehautomaten 32' auf, ferner weist die Zentralverschraubung 33 einen von dem Schraubautomaten 22 faßbaren Schraubenkopf 35 auf, wobei ferner der zum Anschlag-Drehautomaten 32' koaxial angeordnete Schraubautomat 22 über die in Anschlagposition 18 des Verstellelementes 14 bzw. des Kolbens 17 bestromte Signaleinrichtung 21 angesteuert ist zur festen Verschraubung der Stellvorrichtung 10 mit der Nockenwelle 11 über die Zentralverschraubung 33.For a largely automated series assembly of the actuating device 10, the bearing bush 37 has on the end side devices 34 for rotational engagement of an automatic lathe 32 ′, and the central screw connection 33 also has one of these Automatic screwdriver 22 graspable screw head 35, wherein the automatic screwdriver 22 coaxially arranged with the automatic lathe 32 'is controlled via the signaling device 21, which is energized in the stop position 18 of the adjusting element 14 or the piston 17, for firmly screwing the adjusting device 10 to the camshaft 11 via the Central screw connection 33.

Wie aus der Zeichnung weiter ersichtlich, ist im Stromkreis 25 der Signaleinrichtung 21 ein mit der Verbindungstelle 27 der Leitungsabschnitte 24 kontaktierender Ring 36 vorgesehen, wobei an den elastisch nachgiebig abgestützten Ring 36 positives Potential angelegt ist, während die Verstelleinrichtung 14 bzw. der Kolben 17 über weitere Teile der Stellvorrichtung 10 mit der Brennkraftmaschine 12 an Masse liegt.As can also be seen from the drawing, in the circuit 25 of the signaling device 21 there is a ring 36 which contacts the connection point 27 of the line sections 24, positive potential being applied to the elastically resiliently supported ring 36, while the adjusting device 14 or the piston 17 are connected further parts of the actuating device 10 with the internal combustion engine 12 are connected to ground.

Weitere konstruktive Einzelheiten der Stellvorrichtung 10 sind in der DE 195 25 836 beschrieben.Further structural details of the actuating device 10 are described in DE 195 25 836.

Claims (8)

Stellvorrichtung zur relativen Winkelverstellung einer angetriebenen Welle, insbesondere Nockenwelle einer Brennkraftmaschine, - die ein jeweils mittels paarweise angeordneter Verzahnungen (15, 15'; 16, 16') ein Antriebsrad (13) mit der Welle (11) drehfest mitnehmendes, gesteuert/geregelt in antriebs- und wellenseitigen Verzahnungen (15, 15'; 16, 16') verlagerbares Verstellelement (14) umfaßt, das - in einer Maschinen-Referenzstellung (Zünd-OT/Zylinder 1) einem Anschlag (20) der Stellvorrichtung (10) zugeordnet ist, dadurch gekennzeichnet, - daß in einer montageabhängigen Referenzstellung der Maschine (12) eine die Anschlagposition (18) des Verstellelementes (14 bzw. Kolben 17) am Anschlag (20) anzeigende Signaleinrichtung (21) vorgesehen ist. Adjustment device for the relative angle adjustment of a driven shaft, in particular camshaft of an internal combustion engine, - The one in each case by means of paired teeth (15, 15 '; 16, 16') driving wheel (13) with the shaft (11) rotatably entrained, controlled / regulated in the drive and shaft-side teeth (15, 15 '; 16, 16 ') displaceable adjusting element (14) which - In a machine reference position (TDC / cylinder 1) is assigned a stop (20) of the actuating device (10), characterized, - That in an assembly-dependent reference position of the machine (12) a stop position (18) of the adjusting element (14 or piston 17) on the stop (20) indicating signal device (21) is provided. Stellvorrichtung nach Anspruch 1, dadurch gekennzeichnet, - daß eine elektrisch/elektronisch ansteuerbare Signaleinrichtung (21) vorgesehen ist, die - einer optischen und/oder akustischen Anzeige und/oder einer Ansteuerung eines Montageautomaten (22, 32') dient. Adjusting device according to claim 1, characterized in - That an electrically / electronically controllable signal device (21) is provided, the - An optical and / or acoustic display and / or a control of an automatic assembly machine (22, 32 ') is used. Stellvorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, - daß das Verstellelement (14 bzw. Kolben 17) in Anschlagposition (18) mit einem Kontakt (23) eines elektrischen Leitungsabschnittes (24) in Verbindung steht, der - Teil eines Versorgungs- oder Steuer-Stromkreises (25) der Signaleinrichtung (21) ist. Adjusting device according to claim 1 and 2, characterized in that - That the adjusting element (14 or piston 17) in the stop position (18) with a contact (23) of an electrical line section (24) is connected - Part of a supply or control circuit (25) of the signaling device (21). Stellvorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, - daß der Kontakt (23) einschließlich des Leitungsabschnittes (24) in einem aus elektrischen Isolierstoff gebildeten Anschlag (20) angeordnet ist, wobei - der Leitungsabschnitt (24) am kontaktfernen Ende im Bereich der freien Stirnseite (26) des Anschlages (20) eine Verbindungsstelle (27) aufweist. Adjusting device according to claims 1 to 3, characterized in that - That the contact (23) including the line section (24) in a stop made of electrical insulating material (20) is arranged, wherein - The line section (24) has a connection point (27) at the end remote from the contact in the region of the free end face (26) of the stop (20). Stellvorrichtung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, - daß mehrere miteinander elektrisch verbundene Kontakte (23) am Anschlag (20) verteilt angeordnet sind, die - gegebenenfalls zu einem ringförmigen Kontakt weitergebildet sind. Adjusting device according to claims 1 to 4, characterized in that - That several electrically connected contacts (23) on the stop (20) are distributed, the - If necessary, are further developed into an annular contact. Stellvorrichtung nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß dem mittels eines hydraulisch beaufschlagten Kolbens (17) in einem Gehäuse (31) verlagerbaren Verstellelement (14) anschlagseitig eine hydraulische Anschlag-Dämpfungseinrichtung (30) zugeordnet ist.Adjusting device according to claims 1 to 5, characterized in that a hydraulic stop-damping device (30) is associated on the stop side with the adjusting element (14) which can be displaced in a housing (31) by means of a hydraulically loaded piston (17). Stellvorrichtung nach einem oder mehreren der Ansprüchen 1 bis 6, dadurch gekennzeichnet, - daß der Anschlag (20) antriebsseitig über das zweite Verzahnungspaar (16, 16') mit dem wellenseitig über das erste Verzahnungspaar (15, 15') verbundenen Verstellelement (14) in kinematischer Wirkverbindung steht derart, - daß bei drehfest gehaltenem Antriebsrad (13) und drehfixierter Welle (11) mittels einer Drehbewegung einer eine wellenseitige Verzahnung (15) aufweisenden Lagerbuchse (37) über ein ansetzbares Werkzeug (32 bzw. 32') um eine leicht angezogene Zentralverschraubung (33) der Stellvorrichtung (10) mit der Welle (11) das Verstellelement (14) in Anschlagposition (18) verlagert ist. Adjusting device according to one or more of claims 1 to 6, characterized in that - That the stop (20) on the drive side via the second pair of teeth (16, 16 ') with the shaft side via the first pair of teeth (15, 15') connected adjusting element (14) is in kinematic operative connection, - That when the drive wheel (13) and the shaft (11) are held in a rotationally fixed manner by means of a rotary movement of a shaft-side toothing (15) having a bearing bush (37) via an attachable tool (32 or 32 ') around a slightly tightened central screw connection (33) Actuating device (10) with the shaft (11), the adjusting element (14) is moved to the stop position (18). Stellvorrichtung nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, - daß die Lagerbuchse (37) stirnseitig Einrichtungen (34) zum Dreheingriff eines Anschlag-Drehautomaten (32') aufweist, und - daß die Zentralverschraubung (33) einen von einem Schraubautomaten (22) faßbaren Schraubenkopf (35) aufweist, und - daß der zum Anschlag-Drehautomaten (32') koaxial angeordnete Schraubautomat (22) über die in Anschlagposition (18) des Verstellelementes (14) bestromte Signaleinrichtung (21) angesteuert ist. Adjusting device according to one or more of claims 1 to 7, characterized in that - That the bearing bush (37) has end devices (34) for rotational engagement of an automatic lathe (32 '), and - That the central screw (33) has a screw head (35) graspable by an automatic screwing machine (22), and - That the automatic screwing device (22 ') arranged coaxially to the stop lathe (32') is driven via the signaling device (21) which is energized in the stop position (18) of the adjusting element (14).
EP97100814A 1996-03-28 1997-01-20 Device for setting the relative angular position of a shaft, in particular a camshaft for an internal combustion engine Expired - Lifetime EP0798449B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19612397A DE19612397A1 (en) 1996-03-28 1996-03-28 Adjusting device for the relative angle adjustment of a driven shaft, in particular camshaft of an internal combustion engine
DE19612397 1996-03-28

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EP0798449B1 EP0798449B1 (en) 2001-10-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000070194A1 (en) * 1999-05-14 2000-11-23 Siemens Aktiengesellschaft Electromechanical actuator
WO2001020135A1 (en) * 1999-09-13 2001-03-22 Volkswagen Aktiengesellschaft Internal combustion engine with hydraulic camshaft adjuster for adjusting the camshaft
CN100564815C (en) * 2004-10-22 2009-12-02 谢夫勒两合公司 The camshaft adjuster of internal-combustion engine and setting tool

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827860A1 (en) * 1998-06-23 1999-12-30 Schaeffler Waelzlager Ohg Setting unit for a motor camshaft
US7475660B2 (en) 2004-06-02 2009-01-13 Ina-Schaeffler Kg Camshaft adjuster
DE102004035077A1 (en) * 2004-07-20 2006-02-16 Hydraulik-Ring Gmbh Method for adjustment of cam shaft of internal combustion engine of motor vehicle for optimum performance as per power demand, involves controlling inlet and discharge opening durations by linking cam and crank shaft rotations of engine
DE102007027523B4 (en) * 2007-06-15 2010-02-25 Bayerische Motoren Werke Aktiengesellschaft Method for mounting a traction device
DE102008023151B4 (en) 2007-08-29 2021-08-05 Bayerische Motoren Werke Aktiengesellschaft Adjustment device for relative angle adjustment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856465A (en) * 1982-12-24 1989-08-15 Robert Bosch Gmbh Multidependent valve timing overlap control for the cylinders of an internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028442A1 (en) * 1990-09-07 1992-03-12 Audi Ag Operating valve controlled reciprocating piston IC engine - monitoringcamshaft to detect phase shift w.r.t. engine timing
DE4134220A1 (en) * 1990-10-29 1992-04-30 Volkswagen Ag Device for adjusting relative angular positions of two machine parts - uses two coaxial cylinders rotated in opposite directions by hydraulic drive

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856465A (en) * 1982-12-24 1989-08-15 Robert Bosch Gmbh Multidependent valve timing overlap control for the cylinders of an internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000070194A1 (en) * 1999-05-14 2000-11-23 Siemens Aktiengesellschaft Electromechanical actuator
US6803686B2 (en) 1999-05-14 2004-10-12 Siemens Aktiengesellschaft Electromechanical actuator
WO2001020135A1 (en) * 1999-09-13 2001-03-22 Volkswagen Aktiengesellschaft Internal combustion engine with hydraulic camshaft adjuster for adjusting the camshaft
US6675752B1 (en) 1999-09-13 2004-01-13 Volkswagen Ag Internal combustion engine with hydraulic camshaft adjuster for adjusting the camshaft
CN100564815C (en) * 2004-10-22 2009-12-02 谢夫勒两合公司 The camshaft adjuster of internal-combustion engine and setting tool

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DE19612397A1 (en) 1997-10-02
DE59705131D1 (en) 2001-12-06
EP0798449B1 (en) 2001-10-31

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