DE102008051145B4 - Belt-drive camshaft adjuster - Google Patents
Belt-drive camshaft adjuster Download PDFInfo
- Publication number
- DE102008051145B4 DE102008051145B4 DE102008051145.5A DE102008051145A DE102008051145B4 DE 102008051145 B4 DE102008051145 B4 DE 102008051145B4 DE 102008051145 A DE102008051145 A DE 102008051145A DE 102008051145 B4 DE102008051145 B4 DE 102008051145B4
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- Prior art keywords
- camshaft adjuster
- piston
- oil
- seal
- camshaft
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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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
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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
- F01L1/02—Valve drive
- F01L1/024—Belt drive
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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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/3443—Solenoid driven oil control valves
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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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/34433—Location oil control valves
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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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34479—Sealing of phaser devices
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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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34483—Phaser return springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Nockenwellenversteller (100) mit einem Riemenantrieb für eine Brennkraftmaschine umfassend einen von einer Kurbelwelle der Brennkraftmaschine über einen Riemen (30) angetriebenen Stator (2), einen drehfest mit einer Nockenwelle (1) verbundenen Rotor (3), zwischen dem Stator (2) und dem Rotor (3) angeordneten mit einem Öldruck beaufschlagbaren Arbeitskammern (4), die durch dem Rotor (3) zugeordnete Flügel (23) in gegensinnig wirkende Druckräume (24, 25) unterteilt sind, wobei zur Steuerung des Öldruckes in den Druckräumen (24, 25) der Arbeitskammern (4) ein Zentralventil (26) mit einem längs verschieblich in dem Zentralventil (26) geführten Kolben (8) vorgesehen ist, der von einer Ansteuerseite (A) des Nockenwellenverstellers (100) von einem Aktuator (6) mit einer Kraft beaufschlagbar ist, und der Nockenwellenversteller (100) an seiner Ansteuerseite (A) eine Dichtung (10, 17) aufweist, die den Austritt des Ölstromes in den den Riemenantrieb aufnehmenden Bauraum (B) verhindert, dadurch gekennzeichnet, dass die Dichtung (17) durch eine Balgdichtung gebildet ist, die mit ihrem radial äußeren Rand fest mit dem Nockenwellenversteller (100) verbunden ist und mittig mit einem dem Kolben (8) zugeordneten Teil (21) verbunden ist, an dem der Aktuator (6) anliegt.Camshaft adjuster (100) with a belt drive for an internal combustion engine comprising a stator (2) driven by a crankshaft of the internal combustion engine via a belt (30), a rotor (3) connected non-rotatably to a camshaft (1), between the stator (2) and the rotor (3) arranged with an oil pressure can be acted upon working chambers (4), which are divided by the rotor (3) associated vanes (23) into pressure chambers (24, 25) acting in opposite directions, wherein to control the oil pressure in the pressure chambers (24, 25) of the working chambers (4) a central valve (26) is provided with a longitudinally displaceable piston (8) guided in the central valve (26), which is driven from a control side (A) of the camshaft adjuster (100) by an actuator (6) with a Force can be applied, and the camshaft adjuster (100) has a seal (10, 17) on its control side (A) which prevents the oil flow from escaping into the installation space (B) accommodating the belt drive, thereby g Indicates that the seal (17) is formed by a bellows seal which is firmly connected with its radially outer edge to the camshaft adjuster (100) and is centrally connected to a part (21) assigned to the piston (8) on which the actuator (6) is applied.
Description
Die Erfindung betrifft einen Nockenwellenversteller mit Riemenantrieb mit den Merkmalen des Oberbegriffs von Anspruch 1.The invention relates to a belt-drive camshaft adjuster with the features of the preamble of claim 1.
Nockenwellenversteller werden in der Fachwelt nach einer üblichen Kategorisierung in zwei Klassen eingeteilt, Nockenwellenversteller mit Kettenantrieb und Nockenwellenversteller mit Riemenantrieb. Der Nockenwellenversteller wird von einer Kurbelwelle über den Riemen oder die Kette angetrieben und hat die Aufgabe, die Öffnungs- und Schließzeiten der Gaswechselventile einer Brennkraftmaschine zu verstellen. Durch die Verstellung der Öffnungs- und Schließzeiten kann die Brennkraftmaschine hinsichtlich Verbrauch und Leistung optimiert betrieben werden, was insbesondere aufgrund der hohen Energiepreise und Umweltanforderungen bei modernen Brennkraftmaschinen zwingend erforderlich ist. Der Nockenwellenversteller selbst weist einen Stator auf, der über den Riemen oder die Kette von der Kurbelwelle angetrieben wird, und einen Rotor, der drehfest mit der Nockenwelle verbunden ist. Zwischen dem Rotor und dem Stator sind Arbeitskammern vorgesehen, die wiederum durch an dem Rotor angeordnete Flügel in zwei gegensinnig wirkende Druckräume unterteilt werden.In the professional world, camshaft adjusters are divided into two classes according to a customary categorization, camshaft adjusters with chain drive and camshaft adjusters with belt drive. The camshaft adjuster is driven by a crankshaft via the belt or chain and has the task of adjusting the opening and closing times of the gas exchange valves of an internal combustion engine. By adjusting the opening and closing times, the internal combustion engine can be operated in an optimized manner with regard to consumption and performance, which is absolutely necessary in modern internal combustion engines, in particular because of the high energy prices and environmental requirements. The camshaft adjuster itself has a stator, which is driven by the crankshaft via the belt or chain, and a rotor, which is connected to the camshaft in a rotationally fixed manner. Between the rotor and the stator, working chambers are provided, which in turn are subdivided into two oppositely acting pressure chambers by vanes arranged on the rotor.
Um den Drehwinkel des Rotors gegenüber dem Stator und damit der Nockenwelle gegenüber der Kurbelwelle zu verstellen, ist bei Nockenwellenverstellern mit Kettenantrieb z.B. ein Zentralventil vorgesehen, dass über einen in einer ortsfesten Struktur des Motors koaxial zu dem Zentralventil angeordneten Magneten angesteuert wird. Das Zentralventil umfasst einen feststehenden Hydraulikteil und einen in dem Hydraulikteil längs verschieblich geführten Kolben. In dem Hydraulikteil und dem Kolben sind jeweils Ölführungskanäle vorgesehen, die je nach Stellung des Kolbens miteinander verbunden sind. Die Ölführungskanäle in dem Hydraulikteil sind zusätzlich mit den Arbeitskammern verbunden und können je nach Stellung des Kolbens wahlweise mit Öldruck beaufschlagt werden, so dass der Öldruck in den Arbeitskammern in Abhängigkeit von der Stellung des Kolbens gesteuert werden kann. Durch die Veränderung der Drücke in den Arbeitskammern kann dann der Drehwinkel des Rotors gegenüber dem Stator und damit die Öffnungs- und Schließzeitpunkte der Gaswechselventile verändert werden. Während der Verstellung des Rotors wird jeweils ein Druckraum mit einem Ölstrom beaufschlagt, während das Öl aus dem Druckraum auf der anderen Seite des Flügels in einen Tank, der hier durch den Kettenkasten gebildet ist, abströmt.In order to adjust the angle of rotation of the rotor with respect to the stator and thus the camshaft with respect to the crankshaft, camshaft adjusters with chain drive e.g. a central valve is provided that is controlled via a magnet arranged coaxially with the central valve in a stationary structure of the motor. The central valve comprises a stationary hydraulic part and a piston that is guided in the hydraulic part so as to be longitudinally displaceable. In the hydraulic part and the piston each oil guide channels are provided, which are connected to one another depending on the position of the piston. The oil ducts in the hydraulic part are also connected to the working chambers and, depending on the position of the piston, can optionally be pressurized with oil so that the oil pressure in the working chambers can be controlled depending on the position of the piston. By changing the pressures in the working chambers, the angle of rotation of the rotor with respect to the stator and thus the opening and closing times of the gas exchange valves can be changed. During the adjustment of the rotor, an oil flow is applied to one pressure chamber, while the oil flows out of the pressure chamber on the other side of the wing into a tank, which is formed here by the chain case.
Ein solches Abströmen des Ölstromes in den bei Riemenantrieben dem Kettenkasten entsprechen Riemenkasten ist nicht akzeptabel, da der Riemenantrieb grundsätzlich nicht im Öl laufen darf. Aus diesem Grund ist bei Nockenwellenverstellern mit Riemenantrieb die Verwendung eines Zentralventils bisher nicht möglich.Such an outflow of the oil flow into the belt case corresponding to the chain case in belt drives is not acceptable, since the belt drive must not run in oil. For this reason, the use of a central valve has not yet been possible with belt-driven camshaft adjusters.
Die
Die
Die
Die
Die
Aufgabe ist es, einen Nockenwellenversteller mit einem Riemenantrieb zu schaffen, dessen Ölstrom über ein Zentralventil gesteuert wird.The task is to create a camshaft adjuster with a belt drive, the oil flow of which is controlled by a central valve.
Die Aufgabe wird erfindungsgemäß durch einen Nockenwellenversteller mit den Merkmalen der Ansprüche 1, 4 und 6 gelöst, während vorteilhafte Weiterbildungen den Unteransprüchen zu entnehmen sind.According to the invention, the object is achieved by a camshaft adjuster having the features of
Erfindungsgemäß wird zur Lösung der Aufgabe vorgeschlagen, dass zur Steuerung des Öldruckes in den Druckräumen der Arbeitskammern ein Zentralventil mit einem längs verschieblich in dem Zentralventil geführten Kolben vorgesehen ist, der von einer Ansteuerseite des Nockenwellenverstellers von einem Aktuator mit einer Kraft beaufschlagbar ist, und der Nockenwellenversteller an seiner Ansteuerseite eine Dichtung aufweist, die den Austritt des Ölstromes in den den Riemenantrieb aufnehmenden Bauraum verhindert.According to the invention, to achieve the object, it is proposed that to control the oil pressure in the pressure chambers of the working chambers Central valve is provided with a longitudinally displaceable piston guided in the central valve, which can be acted upon by an actuator from a control side of the camshaft adjuster, and the camshaft adjuster has a seal on its control side which prevents the oil flow from escaping into the installation space accommodating the belt drive .
Aufgrund der erfindungsgemäßen Lösungen ist es ermöglicht, den Nockenwellenversteller mit Riemenantrieb über ein Zentralventil zu steuern, ohne dass das ablaufende Öl in den den Riemenantrieb aufnehmende Bauraum, auch Riemenkasten genannt, gelangen kann.The solutions according to the invention make it possible to control the belt-driven camshaft adjuster via a central valve without the draining oil being able to get into the installation space, also known as the belt box, which accommodates the belt drive.
Es wird erfindungsgemäß vorgeschlagen, dass die Dichtung durch eine Balgdichtung gebildet ist, die mit ihrem radial äußeren Rand fest mit dem Nockenwellenversteller verbunden ist, und mittig mit einem dem Kolben zugeordneten Teil verbunden ist, an dem der Aktuator anliegt. Die Balgdichtung besitzt den Vorteil, dass sie den Nockenwellenversteller selbst insgesamt abdichtet, so dass an dieser Seite kein Öl mehr austreten kann, welche in den Bauraum des Riementriebes gelangen könnte. Außerdem besitzt die Balgdichtung den Vorteil, dass sie als statische Dichtung ausgeführt werden kann. Statische Dichtungen sind grundsätzlich unempfindlicher gegenüber Verschleiß und einfacher im Aufbau, so dass die Dichtwirkung über die Lebensdauer des abzudichtenden Bauteils besser ist und die Dichtung kostengünstiger ist. Ein weiterer Vorteil der Balgdichtung besteht darin, dass sie auch Axialbewegungen der Teile insbesondere des Kolbens ausführen kann, ohne dabei ihre Dichtwirkung zu verlieren.It is proposed according to the invention that the seal is formed by a bellows seal which is firmly connected with its radially outer edge to the camshaft adjuster and is centrally connected to a part assigned to the piston against which the actuator rests. The bellows seal has the advantage that it seals the camshaft adjuster itself as a whole, so that no more oil can escape on this side, which could get into the installation space of the belt drive. The bellows seal also has the advantage that it can be designed as a static seal. Static seals are fundamentally less sensitive to wear and tear and have a simpler structure, so that the sealing effect is better over the service life of the component to be sealed and the seal is more cost-effective. Another advantage of the bellows seal is that it can also execute axial movements of the parts, in particular of the piston, without losing their sealing effect.
Es wird ferner vorgeschlagen, dass das mittig mit der Balgdichtung verbundene Teil und der Kolben einstückig ausgebildet sind. Dadurch wird die Stellbewegung des an dem Teil anliegenden Aktuators unmittelbar in eine Bewegung des Kolbens umgewandelt, was vorteilhaft für die Genauigkeit des Bewegungsablaufes der zusammenwirkenden Teile ist. Ferner ist dadurch die Teileanzahl reduziert, was wiederum günstig hinsichtlich der Fertigung, der Teilebevorratung und der Zuverlässigkeit im Dauerlaufbetrieb ist.It is also proposed that the part connected in the middle with the bellows seal and the piston are designed in one piece. As a result, the adjusting movement of the actuator resting on the part is converted directly into a movement of the piston, which is advantageous for the accuracy of the movement sequence of the interacting parts. Furthermore, this reduces the number of parts, which in turn is beneficial in terms of production, parts storage and reliability in continuous operation.
Alternativ wird vorgeschlagen, dass das mittig mit der Balgdichtung verbundene Teil an der Stirnseite des Kolbens derart anliegt, dass ausschließlich Druckkräfte übertragbar sind. Dies kann z.B. sehr einfach dadurch erfolgen, indem das mittig mit der Balgdichtung verbundene Teil und der Kolben aus zwei getrennten Teilen gebildet sind. Hierdurch wird vermieden, dass unbeabsichtigte Druckschwankungen insbesondere Unterdrücke dazu führen können, dass die Balgdichtung den Kolben aus seiner Solllage zieht.Alternatively, it is proposed that the part connected in the middle with the bellows seal rests on the end face of the piston in such a way that only compressive forces can be transmitted. This can e.g. can be done very easily in that the part connected centrally to the bellows seal and the piston are formed from two separate parts. This prevents unintentional pressure fluctuations, in particular negative pressures, from causing the bellows seal to pull the piston out of its desired position.
Erfindungsgemäß wird zur Lösung der Aufgabe auch vorgeschlagen, dass eine Hülse vorgesehen ist, welche in einer koaxial zu dem Zentralventil angeordneten Bohrung einer Bauteilwand des den Riemenantrieb aufnehmenden Bauraumes und den aus dem Zentralventil austretenden Kolben umfasst und die Dichtung zwischen der Hülse und dem Nockenwellenversteller angeordnet ist. Da die Bauteilwand feststehend ausgebildet ist, und der Nockenwellenversteller sich dreht, muss entweder die Dichtung zwischen der Hülse und dem Nockenwellenversteller oder eine zweite Dichtung zwischen der Hülse und der Bauteilwand als dynamische Dichtung z.B. als Radialwellendichtring ausgeführt werden. Die Hülse besitzt den Vorteil, dass durch die Ausführung der Dichtung keine auf den Kolben wirkenden Axialkräfte entstehen können, die zu einem fehlerhaften Verstellen des Kolbens führen können.According to the invention, to achieve the object, it is also proposed that a sleeve be provided which encompasses a component wall of the structural space accommodating the belt drive and the piston emerging from the central valve in a bore arranged coaxially to the central valve and the seal is arranged between the sleeve and the camshaft adjuster . Since the component wall is fixed and the camshaft adjuster rotates, either the seal between the sleeve and the camshaft adjuster or a second seal between the sleeve and the component wall must be used as a dynamic seal e.g. be designed as a radial shaft seal. The sleeve has the advantage that the design of the seal means that no axial forces acting on the piston can arise which could lead to incorrect adjustment of the piston.
Die Ölabfuhr kann in diesem Fall sehr einfach dadurch realisiert werden, indem die Hülse die Bauteilwand durchdringt und an ihrer von dem Nockenwellenversteller abgewandten Seite der Bauteilwand Bohrungen aufweist, durch die das aus den Druckräumen abgeführte Öl austritt.In this case, the oil discharge can be implemented very simply by the sleeve penetrating the component wall and having bores on its side of the component wall facing away from the camshaft adjuster, through which the oil discharged from the pressure chambers emerges.
Erfindungsgemäß besteht eine Ausführungsform darin, dass der Kolben hohl ausgebildet ist, und dass das aus den Druckräumen abgeführte Öl durch den Kolben zu einer außerhalb des den Riemenantrieb aufnehmenden Bauraumes angeordneten Ölablaufbohrung geführt ist.According to the invention, one embodiment consists in that the piston is hollow and that the oil discharged from the pressure chambers is guided through the piston to an oil drain hole arranged outside of the installation space accommodating the belt drive.
Nachfolgend wird die Erfindung durch bevorzugte Ausführungsbeispiele näher beschrieben, wobei in den Figuren im Einzelnen zu erkennen ist:
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1 : Nockenwellenversteller mit abgedichteter Hülse, -
2 : Nockenwellenversteller mit Balgdichtung, -
3 : Nockenwellenversteller mit Balgdichtung und Zwischenstück, -
4 : Grundaufbau eines Nockenwellenverstellers mit Radialkolben.
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1 : Camshaft adjuster with sealed sleeve, -
2 : Camshaft adjuster with bellows seal, -
3 : Camshaft adjuster with bellows seal and spacer, -
4th : Basic structure of a camshaft adjuster with radial piston.
In
In
In der Nockenwelle
An der Ansteuerseite „
In der den Aktuator
In
Die Druckölbeaufschlagung erfolgt in diesem Ausführungsbeispiel identisch zu der in
In der
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008051145.5A DE102008051145B4 (en) | 2008-10-09 | 2008-10-09 | Belt-drive camshaft adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008051145.5A DE102008051145B4 (en) | 2008-10-09 | 2008-10-09 | Belt-drive camshaft adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102008051145A1 DE102008051145A1 (en) | 2010-04-15 |
| DE102008051145B4 true DE102008051145B4 (en) | 2020-09-17 |
Family
ID=41821228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102008051145.5A Active DE102008051145B4 (en) | 2008-10-09 | 2008-10-09 | Belt-drive camshaft adjuster |
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| Country | Link |
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| DE (1) | DE102008051145B4 (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012208495B4 (en) | 2012-05-22 | 2018-04-05 | Schaeffler Technologies AG & Co. KG | Phaser |
| DE102013100890B4 (en) | 2013-01-29 | 2018-05-17 | Hilite Germany Gmbh | Swivel motor adjuster with a central screw designed as a central valve |
| DE102013101737A1 (en) | 2013-02-21 | 2014-08-21 | Hilite Germany Gmbh | Sealing device and camshaft adjuster |
| US9016250B2 (en) * | 2013-06-18 | 2015-04-28 | Delphi Technologies, Inc. | Camshaft phaser |
| DE102013212942C5 (en) * | 2013-07-03 | 2021-04-22 | Schaeffler Technologies AG & Co. KG | Fluid supply, such as an oil supply, for a central valve system for a dry belt drive |
| WO2015000472A1 (en) * | 2013-07-03 | 2015-01-08 | Schaeffler Technologies Gmbh & Co. Kg | Bearing system for central valve systems for dry belt drives |
| DE102013022320B4 (en) | 2013-07-03 | 2020-02-06 | Schaeffler Technologies AG & Co. KG | Connection of an adjustment actuator to a central valve system for a dry belt drive |
| DE102013212935B4 (en) | 2013-07-03 | 2024-02-08 | Schaeffler Technologies AG & Co. KG | Actuator camshaft adjuster system for a dry belt drive |
| DE202013012609U1 (en) | 2013-07-03 | 2017-11-24 | Schaeffler Technologies AG & Co. KG | Central valve system for a dry belt drive |
| DE102013212943B4 (en) * | 2013-07-03 | 2017-01-26 | Schaeffler Technologies AG & Co. KG | Connection of an adjusting actuator to a central valve system for a dry belt drive |
| DE102013224859B4 (en) * | 2013-12-04 | 2017-01-26 | Schaeffler Technologies AG & Co. KG | Phaser |
| DE102013114625A1 (en) | 2013-12-20 | 2015-06-25 | Eto Magnetic Gmbh | Camshaft adjusting device, internal combustion engine and assembly process |
| US20150275707A1 (en) * | 2014-04-01 | 2015-10-01 | Delphi Technologies, Inc. | Camshaft phaser |
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| DE102016214502B4 (en) * | 2015-10-28 | 2022-03-10 | Schaeffler Technologies AG & Co. KG | camshaft adjustment device |
| DE102016202861A1 (en) | 2016-02-24 | 2017-08-24 | Schaeffler Technologies AG & Co. KG | Storage of an actuator unit |
| DE102017110599A1 (en) | 2017-05-16 | 2018-11-22 | Schaeffler Technologies AG & Co. KG | Housing for a camshaft adjusting device |
| DE102017122425A1 (en) * | 2017-09-27 | 2019-03-28 | ECO Holding 1 GmbH | Kit with a camshaft adjuster |
| DE102017124419B3 (en) | 2017-10-19 | 2019-03-28 | Schaeffler Technologies AG & Co. KG | Phaser |
| CN110195624B (en) * | 2018-02-27 | 2022-05-17 | 博格华纳公司 | Cam phaser between cam bearings |
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| DE102006012733A1 (en) * | 2006-03-17 | 2007-09-20 | Hydraulik-Ring Gmbh | Motor vehicle hydraulic circuit, has hydraulic piston e.g. camshaft adjuster, where pressurization of hydraulic medium by hydraulic piston from negative portion of alternating external force is utilized by opening of check valves |
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| DE69809586T2 (en) * | 1997-11-03 | 2003-09-04 | Mechadyne International Plc, Kirtlington | PHASE ADJUSTMENT DEVICE |
| DE102004039800A1 (en) * | 2004-08-17 | 2006-03-09 | Hydraulik-Ring Gmbh | Cam Phaser System |
| DE102006012733A1 (en) * | 2006-03-17 | 2007-09-20 | Hydraulik-Ring Gmbh | Motor vehicle hydraulic circuit, has hydraulic piston e.g. camshaft adjuster, where pressurization of hydraulic medium by hydraulic piston from negative portion of alternating external force is utilized by opening of check valves |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008051145A1 (en) | 2010-04-15 |
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