EP1994262B1 - Adjustment device for a camshaft - Google Patents

Adjustment device for a camshaft Download PDF

Info

Publication number
EP1994262B1
EP1994262B1 EP07712206A EP07712206A EP1994262B1 EP 1994262 B1 EP1994262 B1 EP 1994262B1 EP 07712206 A EP07712206 A EP 07712206A EP 07712206 A EP07712206 A EP 07712206A EP 1994262 B1 EP1994262 B1 EP 1994262B1
Authority
EP
European Patent Office
Prior art keywords
camshaft
friction lining
brake system
friction
transfer gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07712206A
Other languages
German (de)
French (fr)
Other versions
EP1994262A1 (en
Inventor
Frank Richter
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1994262A1 publication Critical patent/EP1994262A1/en
Application granted granted Critical
Publication of EP1994262B1 publication Critical patent/EP1994262B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • 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
    • F01L1/352—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 bevel or epicyclic gear
    • 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
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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
    • 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
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/02—Lubrication
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • the present invention relates to an adjusting device for a camshaft, according to the preamble of patent claim 1.
  • a adjusting device for a camshaft of an internal combustion engine known, soft one driven by a crankshaft of the internal combustion engine drive element, a camshaft of the internal combustion engine driving output element and an actuating element, which is beautschlagt by a brake, wherein by varying the braking torque on the actuator relative rotation between the output element and driven element is reachable.
  • the design of the adjustment allows any phase angle between the drive element and output element.
  • the brake is designed as a non-contact working, electromagnetic brake; preferably a hysteresis brake is used; whose braking torque is independent of the speed.
  • the present invention is therefore based on the object to provide a Vierstellvorrichtüng for a camshaft, which is inexpensive to produce.
  • an adjusting device for a camshaft comprising a brake system and an output side connected to the camshaft and the crankshaft drive side superposition gear, the superposition gear for adjusting the camshaft dissipates a part of the drive-side energy in the brake system, wherein the brake system is designed as a frictional braking system in which the required braking force is generated via a friction lining in permanent slip.
  • the adjusting device according to the invention has an additional mechanical lock.
  • a phase adjustment between the drive-side sprocket or pulley and the output-side camshaft can be made or a phaselage once set are held in position
  • the frictional braking system is designed as an electromagnetically actuated friction system.
  • the ⁇ bertag réellesgetriebe can be designed as a planetary gear or as a transmission with two sun gears and a two-stage planet, with each form of a superposition gear is suitable for use in the system according to the invention.
  • the cost is reduced because expensive elements of non-contact systems are not needed and required in the system fail-safe locking can be made as part of the peel movement in the friction lining.
  • a complete actuator can be saved.
  • FIGURE is a schematic sectional view of a preferred embodiment.
  • the frictional braking system with additional mechanical locking of the adjusting device comprises an electrically actuated switching coil 1, which has a friction surface 8, a magnetic friction lining 2 with a locking element 6 and a spring 3, wherein the locking element 6 with a drive-side element 5 of the superposition gear 7 interacts.
  • the friction lining 2 is axially movable but rotationally fixed to a spur gear 4 of the superposition gear, 7 fixed.
  • the ⁇ beragerungsgstriebe 7 is designed as a transmission with two Sonnenstirnziern 4.9 and a two-stage planet 10.
  • the camshaft is rotatably connected to the second spur gear 9 of the Matterlagerungsgefriebes 7; the drive is connected to the planet carrier.
  • the superposition gear 7 as a planetary gear, it is advantageous to arrange the friction lining 2 on the Finverzahhung; In this case, the camshaft is connected to the ring gear.
  • switching coil 1 When not energized switching coil 1 is no electromagnetic force on the friction lining 2, so that by the force of the spring 3 on the friction lining 2, the spur gear 4 via the friction lining 2 and the locking element 6 is positively connected to the drive-side element 5 of the superposition gear 7.
  • the required phase position can be set and held via a planetary gear set or another transmission gear.
  • the friction lining 2 is flooded oil; This can be done either from the outside (oil mist, etc.) or from the middle of the camshaft.
  • the friction lining 2 can be used as a paper coating with special embossing, comprising e.g. Radial grooves with waffle pattern, or be designed as a carbon coating. In the version as a carbon lining this can have a covering thickness of about 0.05 mm.
  • a carbon coating has the advantage that the wear is very low.
  • the braking torque can also be generated via a mixed friction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Braking Arrangements (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

An adjustment device for a camshaft includes a brake system and a superposition gear system connected on a drive output side to the camshaft and on the drive input side to the crankshaft, such that to adjust the camshaft the superposition gear system dissipates part of the energy from the drive side into the brake system. The brake system is a frictional brake system, such that the necessary braking force is produced by a friction lining that operates in a slipping condition.

Description

Die vorliegende Erfindung betrifft eine Verstellvorrichtung für eine Nockenwelle, gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to an adjusting device for a camshaft, according to the preamble of patent claim 1.

Aus dem Stand der Technik ist bekannt, die Verstellbewegung der Nockenwelle über verschfeißfreie und berührungslose Bremssysteme zu erzeugen.From the prior art it is known to produce the adjusting movement of the camshaft via non-impact and non-contact braking systems.

Beispielsweise ist aus der DE 103 55 560 A1 eineverstellvorrichtung für eine Nockenwelle einer Brennkraftmaschine bekannt, weiche ein von einer Kurbelwelle der Brennkraftmaschine angetriebenes Antriebselement, ein die Nockenwelle der Brennkraftmaschine antreibendes Abtriebselement und ein Stellelement aufweist, das von einer Bremse beautschlagt wird, wobei durch Variation des Bremsmomentes am Stellelement eine Relativdrehung zwischen Abtriebselement und Abtriebselement erreichbar ist. Dabei lässt die Bauform der Verstellvorrichtung beliebige Phasenwinkel zwischen Antriebselement und Abtriebselement zu. Die Bremse ist als berührungslos arbeitsende, elektromagnetische Bremse ausgeführt; vorzugsweise wird eine Hysteresebremse verwendet; deren Bremsmoment unabhängig von der Drehzahl ist.For example, is from the DE 103 55 560 A1 a adjusting device for a camshaft of an internal combustion engine known, soft one driven by a crankshaft of the internal combustion engine drive element, a camshaft of the internal combustion engine driving output element and an actuating element, which is beautschlagt by a brake, wherein by varying the braking torque on the actuator relative rotation between the output element and driven element is reachable. The design of the adjustment allows any phase angle between the drive element and output element. The brake is designed as a non-contact working, electromagnetic brake; preferably a hysteresis brake is used; whose braking torque is independent of the speed.

Derartige Systeme sind in nachteiliger Weise aufgrund der benötigten berührungslos arbeitenden Komponente teuer und benötigen eine Fail-Save-Verriegelung, wofür ein weiterer Aktuator benötigt wird.Such systems are disadvantageously expensive due to the required non-contact component and require a fail-safe locking, for which a further actuator is needed.

Der vorliegenden Erfindung liegt daher die Aufhabe zugrunde, eine Vierstellvorrichtüng für eine Nockenwelle anzugeben, welche kostengünstig herstellbar ist.The present invention is therefore based on the object to provide a Vierstellvorrichtüng for a camshaft, which is inexpensive to produce.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Heitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.This object is solved by the features of patent claim 1. Heitere embodiments and advantages of the invention will become apparent from the dependent claims.

Demnach wird eine Verstellvorrichtung für eine Nockenwelle vorgeschfagen, umfassend ein Bremssystem und ein mit der Nockenwelle abtriebsseitig und der Kurbelwelle antriebsseitig verbundenes Überlagerungsgetriebe, wobei das Überlagerungsgetriebe zum Verstellen der Nockenwelle einen Teil der antriebsseitigen Energie in das Bremssystem abführt, wobei das Bremssystem als reibschlüssiges Bremssystem ausgeführt ist, bei dem die erforderliche Bremskraft über einen im Dauerschlupf befindlichen Reibbelag erzeugt wird. Zudem weist die erfindungsgemäße Verstellvorrichtung eine zusätzliche mechanische Verriegelung auf.Accordingly, an adjusting device for a camshaft is advanced, comprising a brake system and an output side connected to the camshaft and the crankshaft drive side superposition gear, the superposition gear for adjusting the camshaft dissipates a part of the drive-side energy in the brake system, wherein the brake system is designed as a frictional braking system in which the required braking force is generated via a friction lining in permanent slip. In addition, the adjusting device according to the invention has an additional mechanical lock.

Über das reibschlüssige Bremssystem gemäß der Erfindung kann eine Phasenverstellung zwischen antriebsseitigem Kettenrad oder Riemenscheibe und der abtriebsseitigen Nockenwelle vorgenommen werden oder eine einmal eingestellte Phaselage auf Position gehalten werden,About the frictional braking system according to the invention, a phase adjustment between the drive-side sprocket or pulley and the output-side camshaft can be made or a phaselage once set are held in position,

Im Rahmen einer besonders vorteilhaften Ausführungsform der Erfindung ist das reibschlüssige Bremssystem als elektromagnetisch betätigtes Reibsystem ausgebildet. Des weiteren kann das Öbertagerungsgetriebe als Planetengetriebe oder als Getriebe mit zwei Sonnenstirnrädern und einem zweistufigen Planeten ausgeführt sein, wobei auch jede Form eines Überlagerungsgetriebes zum Einsatz beim erfindungsgemäßen System geeignet ist.In a particularly advantageous embodiment of the invention, the frictional braking system is designed as an electromagnetically actuated friction system. Furthermore, the Öbertagerungsgetriebe can be designed as a planetary gear or as a transmission with two sun gears and a two-stage planet, with each form of a superposition gear is suitable for use in the system according to the invention.

Durch die erfindungsgemäße Konzeption werden die Kosten reduziert, da teure Elemente der berührungslosen Systeme nicht benötigt werden und die im System erforderliche Fail-Save-Verriegelung im Rahmen der Schältbewegung im Reibbelag mit getätigt werden kann. Hiedurch kann in vorteilhafter Weise ein kompletter Aktuator eingespart werden.The inventive concept, the cost is reduced because expensive elements of non-contact systems are not needed and required in the system fail-safe locking can be made as part of the peel movement in the friction lining. By this means, advantageously, a complete actuator can be saved.

Die Erfindung wird im Folgenden anhand der beigefügten Figur, welche eine schematische Schnittansicht einer bevorzugten Ausführungsform darstellt, beispielhaft näher erläutert.The invention is explained in more detail below by way of example with reference to the attached FIGURE, which is a schematic sectional view of a preferred embodiment.

Die reibschlüssige Bremssystem mit zusätzliche mechanischer Verriegelung der Verstellvorrichtung gemäß der Erfindung umfasst eine elektrisch betätigbare Schaltspule 1, die eine Reibfläche 8 aufweist, einen magnetischen Reibbelag 2 mit einem Verriegelungselement 6 und eine Feder 3,wobei das Verriegelungselement 6 mit einem antriebsseitigen Element 5 des Überlagerungsgetriebes 7 zusammenwirkt. Hierbei ist der Reibbelag 2 axial beweglich aber drehfest an einem Stirnrad 4 des Uberlagerungsgetriebes, 7 befestigt.The frictional braking system with additional mechanical locking of the adjusting device according to the invention comprises an electrically actuated switching coil 1, which has a friction surface 8, a magnetic friction lining 2 with a locking element 6 and a spring 3, wherein the locking element 6 with a drive-side element 5 of the superposition gear 7 interacts. Here, the friction lining 2 is axially movable but rotationally fixed to a spur gear 4 of the superposition gear, 7 fixed.

Bei der gezeigten Ausführungsform ist das Öbertagerungsgstriebe 7 als Getriebe mit zwei Sonnenstirnrädern 4,9 und einem zweistufigen Planeten 10 ausgeführt. Hierbei ist die Nockenwelle mit dem zweiten Stirnrad 9 des Überlagerungsgefriebes 7 drehfest verbunden; der Antrieb ist mit dem Planetenträger verbunden.In the embodiment shown, the Öberagerungsgstriebe 7 is designed as a transmission with two Sonnenstirnrädern 4.9 and a two-stage planet 10. Here, the camshaft is rotatably connected to the second spur gear 9 of the Überlagerungsgefriebes 7; the drive is connected to the planet carrier.

Bei einer Ausführung des Überlagerungsgetriebes 7 als Planetengetriebe ist es vorteilhaft, den Reibbelag 2 auf der Sonnenverzahhung anzuordnen; in diesem Fall ist die Nockenwelle mit dem Hohlrad verbunden.In one embodiment of the superposition gear 7 as a planetary gear, it is advantageous to arrange the friction lining 2 on the Sonnenverzahhung; In this case, the camshaft is connected to the ring gear.

Bei nicht bestromter Schaltspule 1 liegt keine elektromagnetische Kraft am Reibbelag 2 an, so dass durch die Kraft der Feder 3 auf den Reibbelag 2 das Stirnrad 4 über den Reibbelag 2 und das Verriegelungselement 6 mit dem antriebsseitigen Element 5 des Überlagerungsgetriebes 7 formschlüssig verbunden ist.When not energized switching coil 1 is no electromagnetic force on the friction lining 2, so that by the force of the spring 3 on the friction lining 2, the spur gear 4 via the friction lining 2 and the locking element 6 is positively connected to the drive-side element 5 of the superposition gear 7.

Bei Bestromung der Schaltspule 1 wirkt die magnetische Kraft auf den Reibbelag 2, so dass sich der Reibbelag 2 an seiner Reibfläche an die Reibfläche 8 der Schaftspule 1 anlegt. Gleichzeitig, rückt das Verriegelungselement 6 aus dem antriebsseitigen Element 5 des Uberlagerungsgetriebes 7 aus. Das über die Schaltspule 1 aufgebaute Bremsmoment kann nun über das Stirnrad 4 in das Überlagerungsgetriebe 7 einfließen.When current flows through the switching coil 1, the magnetic force acts on the friction lining 2, so that the friction lining 2 rests against the friction surface 8 of the shaft coil 1 on its friction surface. At the same time, the locking element 6 moves from the drive-side element 5 of the superposition gear 7. The braking torque built up via the shift coil 1 can now flow into the superposition gear 7 via the spur gear 4.

Durch die elektrisch Regelung der Schaltspule kann die erforderlich Phasenlage über einen Planetensatz oder ein anderes Übertagerungsgetriebe eingestellt und gehalten werden. Um den Reibbelag unter hoher Schlupfleistung betreiben zu können, kann vorgesehen sein, dass der Reibbelag 2 öldurchflutet wird; dies kann entweder von außen (Ölnebel, etc.) oder aus der Mitte der Nockenwelle erfolgen.Due to the electrical control of the shift coil, the required phase position can be set and held via a planetary gear set or another transmission gear. In order to operate the friction lining under high slip performance, it can be provided that the friction lining 2 is flooded oil; This can be done either from the outside (oil mist, etc.) or from the middle of the camshaft.

Der Reibbelag 2 kann als Papierbelag mit spezieller Prägung, umfassend z.B. radiale Rillen mit Waffelmuster, oder als Carbonbelag ausgeführt sein. Bei der Ausführung als Carbonbelag kann dieser eine Belagstärke von ca. 0,05 mm aufweisen. Ein Carbonbelag weist den Vorteil aut, dass der Verschleiß sehr gering ist.The friction lining 2 can be used as a paper coating with special embossing, comprising e.g. Radial grooves with waffle pattern, or be designed as a carbon coating. In the version as a carbon lining this can have a covering thickness of about 0.05 mm. A carbon coating has the advantage that the wear is very low.

Im Rahmen einer vorteilhaften Weiterbildung der Ereindung wird vorgeschlagen, das Bremsmoment über eine hydrodynamische Gleitlagerfläche zu erzeugen, bei der sich das Bremsmoment durch Scheerkrafte im Ölfilm des Reibbelags 2 einstellt. Hierbei bleibt die Reibfläche verschleißfrei; gemäß der Erfindung kann das Bremsmoment auch über eine Mischreibung erzeugt werdenIn the context of an advantageous development of the erection, it is proposed to generate the braking torque via a hydrodynamic sliding bearing surface, in which the braking torque is adjusted by shearing forces in the oil film of the friction lining 2. Here, the friction surface remains wear-free; According to the invention, the braking torque can also be generated via a mixed friction

Bezugszeichenreference numeral

11
Schaltspuleswitching coil
22
Reibbelag,friction lining
33
Federfeather
44
Stirnradspur gear
55
antriebsseifiges Element des Überlagerungsgetriebes 7drive-immersed element of the superposition gearing 7
66
Verriegelungselementlocking element
77
ÜberlagerungsgetriebeSuperposition gear
88th
Reibfläche der Schaltspule 1Friction surface of the switching coil 1
99
Stirnradspur gear
1010
Planetplanet

Claims (5)

  1. Adjusting device for a camshaft, comprising a brake system and a transfer gear connected to the camshaft on the output side and to the crankshaft on the drive side, the transfer gear discharging part of the drive-side energy to the brake system for the adjustment of the camshaft, the brake system being designed as a frictional brake system in which the required brake force is generated via a continuous-slip friction lining (2), and the brake system being formed as an electromagnetically actuated friction system, characterized in that the brake system comprises an electrically actuable switch coil (1), having a friction surface (8), a friction lining (2) with an interlock element (6) cooperating with a drive-side element (5) of the transfer gear (7), and a spring (3), the friction lining (2) being fastened axially movably, but fixedly in terms of rotation, to a spur wheel (4) of the transfer gear (7), with the switch coil (1) dead the spur wheel (4) being positively connected to the drive-side element (5) of the transfer gear (7) by means of the force of the spring (3) via the friction lining (2) and the interlock element (6), and, with the switch coil (1) live, the friction lining (2) being capable of being brought to bear, due to the action of the magnetic force upon it, at its friction surface against the friction surface (8) of the switch coil (1), so that the brake torque built up via the switch coil (1) flows into the transfer gear (7) via the spur wheel (4).
  2. Adjusting device for a camshaft according to Claim 1, characterized in that the friction lining (2) of the brake system is oil-flooded, this taking place either from outside or from the middle of the camshaft.
  3. Adjusting device for a camshaft according to Claim 2, characterized in that the friction lining (2) is designed as a paper lining with special embossing or as a carbon lining.
  4. Adjusting device for a camshaft according to one of the preceding claims, characterized in that the brake torque can be generated via a hydrodynamic plain bearing surface, the said brake torque being established by means of shear forces in the oil film of the friction lining (2).
  5. Adjusting device for a camshaft according to one of the preceding claims, characterized in that the transfer gear is designed as an epicyclic gear or as a gear with two sun spur wheels and with one two-stage planet.
EP07712206A 2006-03-15 2007-02-12 Adjustment device for a camshaft Not-in-force EP1994262B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006011806A DE102006011806A1 (en) 2006-03-15 2006-03-15 Adjustment device for a camshaft
PCT/EP2007/051306 WO2007104620A1 (en) 2006-03-15 2007-02-12 Adjustment device for a camshaft

Publications (2)

Publication Number Publication Date
EP1994262A1 EP1994262A1 (en) 2008-11-26
EP1994262B1 true EP1994262B1 (en) 2009-12-23

Family

ID=38069093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07712206A Not-in-force EP1994262B1 (en) 2006-03-15 2007-02-12 Adjustment device for a camshaft

Country Status (7)

Country Link
US (1) US7841312B2 (en)
EP (1) EP1994262B1 (en)
JP (1) JP4921493B2 (en)
KR (1) KR101311689B1 (en)
AT (1) ATE453041T1 (en)
DE (2) DE102006011806A1 (en)
WO (1) WO2007104620A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028554B4 (en) 2006-06-22 2018-03-08 Daimler Ag adjustment
DE102008043672A1 (en) 2008-11-12 2010-05-20 Zf Friedrichshafen Ag Valve drive for four-stroke internal combustion piston engine of vehicle, has fixed component whose cavity is sealed and filled with magneto-rheological fluid, where ductility of fluid is controllable by strength of magnetic field
DE102008043671A1 (en) 2008-11-12 2010-05-20 Zf Friedrichshafen Ag Adjustment system for camshafts of an internal combustion engine
DE102008043673A1 (en) 2008-11-12 2010-05-20 Zf Friedrichshafen Ag Camshaft adjustment system for internal combustion engine, has differential drives formed as planet gear with output element comprising hollow wheel
DE102009026626A1 (en) 2009-06-02 2010-12-09 Zf Friedrichshafen Ag Clutch or brake in or on a gearbox
DE102010039426A1 (en) 2010-08-18 2012-02-23 Zf Friedrichshafen Ag Valve train for internal combustion piston engine, has locking element provided with ratchet tooth, which is projected axially above external periphery of brake rotor and engaged with recesses
DE102010039861A1 (en) 2010-08-27 2012-03-01 Zf Friedrichshafen Ag Valve gear of a combustion piston engine
DE102012203984A1 (en) 2012-03-14 2013-09-19 Zf Friedrichshafen Ag Device i.e. camshaft adjuster, for displacing camshaft of internal combustion engine of motor car, has gearing tracks axially arranged at distance from each other by annular gap, and output ring gears rotatably inserted into annular gap
DE102020120618A1 (en) 2020-08-05 2022-02-10 Schaeffler Technologies AG & Co. KG Arrangement for adjusting a camshaft for variable valve control of an internal combustion engine and method for operating an arrangement for adjusting a camshaft

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0211809A (en) 1988-06-29 1990-01-16 Aisin Seiki Co Ltd Valve opening/closing timing controller
JP3785670B2 (en) * 1996-03-18 2006-06-14 マツダ株式会社 Variable valve timing device
JP2001107712A (en) 1999-08-03 2001-04-17 Unisia Jecs Corp Valve timing control device for internal combustion engine
JP4072346B2 (en) * 2002-01-16 2008-04-09 株式会社日立製作所 Control device for variable valve timing mechanism
JP3986371B2 (en) * 2002-06-07 2007-10-03 株式会社日立製作所 Valve timing control device for internal combustion engine
DE10355560A1 (en) 2003-11-28 2005-08-11 Daimlerchrysler Ag Adjusting device for a camshaft of an internal combustion engine
DE102004033894B4 (en) * 2004-07-14 2009-02-12 Daimler Ag Camshaft adjustment device

Also Published As

Publication number Publication date
DE502007002410D1 (en) 2010-02-04
US20090095124A1 (en) 2009-04-16
JP2009529623A (en) 2009-08-20
KR20080104264A (en) 2008-12-02
US7841312B2 (en) 2010-11-30
KR101311689B1 (en) 2013-09-25
JP4921493B2 (en) 2012-04-25
EP1994262A1 (en) 2008-11-26
ATE453041T1 (en) 2010-01-15
DE102006011806A1 (en) 2007-10-04
WO2007104620A1 (en) 2007-09-20

Similar Documents

Publication Publication Date Title
EP1994262B1 (en) Adjustment device for a camshaft
EP1922497B1 (en) Gear shifting point for producing a rotationally fixed connection between a toothed wheel and a shaft
EP3354920A1 (en) Clutch assembly for a drive train and gear system comprising such a coupling assembly
EP2018492B1 (en) Transmission device for distributing a drive torque to at least two output shafts
EP1816368B1 (en) Wrap spring clutch
WO2010054915A1 (en) Adjusting system for camshafts of an internal combustion engine
WO2005061861A1 (en) Adjusting device for a camshaft of an internal combustion engine
DE102015217164A1 (en) Assembly with a friction device
EP2577005B1 (en) Actuating device for an internal combustion engine valve-train device
DE102012216231B3 (en) Planetary gear e.g. spur gear for gearbox device used in powertrain of vehicle, has ring gear that is frictionally engaged with planter carrier by activation of clutch device on friction region of planet carrier
DE19700936A1 (en) Servo drive for actuating motor vehicle torque- or gear-transmission system
EP2438275B1 (en) Clutch or brake in or at a gearbox
EP2616644B1 (en) Apparatus for shifting the phase of the rotary angle of a drive gear with respect to a driven gear
DE102006022174A1 (en) Transmission device for distributing drive torque to two output shafts, has planetary gear sets that are provided between differential cage of differential and output of each side
DE102006042478A1 (en) Electromotive actuator for the deflection of a mechanical part
DE102012022636B4 (en) Cross differential with electromechanical friction clutch for locking
WO2001031218A1 (en) Dual clutch, comprising an electromagnet
DE102017004839A1 (en) Adjusting device for adjusting a phase position of two shaft elements, in particular of a vehicle
DE102019131170B3 (en) Powertrain for motor vehicles
DE102010021783A1 (en) Locking device for internal combustion engine valve train device, particularly camshaft adjustment device, has phase adjusting unit with magnetic field unit which is provided to generate magnetic flux in operating condition
DE102009031249B4 (en) Clutch-brake unit and double clutch with ball-ramp operation
DE19504132C2 (en) Actuator for a coupling gear
WO2011147618A1 (en) Adjusting mechanism as a superposition gearing
DE10243809A1 (en) actuator
DE102017218576A1 (en) Electric machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080703

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502007002410

Country of ref document: DE

Date of ref document: 20100204

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100423

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100323

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100403

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100423

BERE Be: lapsed

Owner name: ZF FRIEDRICHSHAFEN A.G.

Effective date: 20100228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100301

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20100924

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100228

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110501

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110501

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100212

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 453041

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120212

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20140211

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140212

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20150216

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20150210

Year of fee payment: 9

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150212

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160209

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20161028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007002410

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170901