DE102007010156A1 - Valve drive unit for a combustion engine comprises an adjusting unit having interacting elements which interact alternately with a curved connecting part - Google Patents
Valve drive unit for a combustion engine comprises an adjusting unit having interacting elements which interact alternately with a curved connecting part Download PDFInfo
- Publication number
- DE102007010156A1 DE102007010156A1 DE102007010156A DE102007010156A DE102007010156A1 DE 102007010156 A1 DE102007010156 A1 DE 102007010156A1 DE 102007010156 A DE102007010156 A DE 102007010156A DE 102007010156 A DE102007010156 A DE 102007010156A DE 102007010156 A1 DE102007010156 A1 DE 102007010156A1
- Authority
- DE
- Germany
- Prior art keywords
- cam
- engagement
- valve gear
- housing
- engagement elements
- 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.)
- Withdrawn
Links
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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- 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
- F01L1/053—Camshafts overhead type
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- 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
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
-
- 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
- F01L2001/0471—Assembled camshafts
- F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
-
- 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
- F01L2001/0475—Hollow 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
- F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
-
- 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
- F01L2820/03—Auxiliary actuators
- F01L2820/031—Electromagnets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Die Erfindung betrifft einen Ventiltrieb einer Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1 sowie ein Stellorgan zum axialen Verschieben eines Nockenträgers auf einer Nockenwelle gemäß dem Oberbegriff des Anspruchs 17.The The invention relates to a valve train of an internal combustion engine according to the The preamble of claim 1 and an actuator for axial displacement a cam carrier on a camshaft according to The preamble of claim 17.
Zur Verbesserung der thermodynamischen Eigenschaften von Brennkraftmaschinen sind mechanische Vorrichtungen bekannt, die das Arbeitsspiel des Ventiltriebes beeinflussen und beispielsweise eine drehzahlabhängige Veränderung der Öffnungszeiten oder des Hubs von Gaswechselventilen von Zylindern der Brennkraftmaschine ermöglichen.to Improvement of the thermodynamic properties of internal combustion engines are known mechanical devices that the working cycle of the Valve drive influence and, for example, a speed-dependent Change in opening hours or hubs of Allow gas exchange valves of cylinders of the internal combustion engine.
Aus
der
Solange die beiden Nockenprofilgruppen auf dem Nockenträger jeweils nur zwei unterschiedliche Nockenprofile aufweisen, sind zum Verschieben des Nockenträgers zwei Stellorgane oder Aktuatoren ausreichend, die sich problemlos im Zylinderkopfgehäuse unterbringen lassen und keinen übermäßigen konstruktiven Aufwand verursachen. Wenn jedoch zur Verbesserung der Beeinflussung des Arbeitsspiels des Ventiltriebs die Nockenprofilgruppen um eine oder mehrere weitere Nockenkonturen bzw. um ein oder mehrere weitere Nockenprofile erweitert werden sollen, muss der Nockenträger zwischen mehr als zwei verschiedenen Verschiebestellungen hin und her bewegt werden, um die Nockenprofile wahlweise mit dem Schlepphebel in Anlagekontakt zu bringen. Dazu müsste die Anzahl der Stellorgane oder Aktuatoren im Zylinderkopf bzw. die Anzahl der Kurvenkulissen auf dem Nockenträger vergrößert werden, was jedoch sowohl wegen des zur Unterbringung der Stellorgane oder Aktuatoren benötigten axialen Bauraums als auch wegen der verhältnismäßig hohen Kosten der Aktuatoren unerwünscht ist.So long the two cam profile groups on the cam carrier respectively have only two different cam profiles are to move the cam carrier two actuators or actuators sufficient, which can easily be accommodated in the cylinder head housing let and not excessive constructive Cause effort. If, however, to improve the influence of the working cycle of the valve train, the cam profile groups by one or several other cam contours or one or more others Cam profiles are to be extended, the cam carrier must between more than two different displacement positions and can be moved to the cam profiles either with the finger lever to bring into abutting contact. This would require the number of Actuators or actuators in the cylinder head or the number of curves be enlarged on the cam carrier, which, however, both because of the accommodation of the actuators or Actuators required axial space and because of the relatively high cost of actuators is undesirable.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung und ein Stellorgan der eingangs genannten Art dahingehend zu verbessern, dass sich die Anzahl der Nockenprofile jeder Nockenprofilgruppe ohne eine Vergrößerung der Anzahl der Stellorgane bzw. Aktuatoren vergrößern lässt.outgoing This is the object of the invention, a device and to improve an actuator of the type mentioned in the introduction, that the number of cam profiles of each cam profile group without an increase in the number of actuators or increase actuators.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Stellorgan mindestens zwei Eingriffselemente aufweist, die sich alternativ mit der Kurvenkulisse in Eingriff bringen lassen. Auf diese Weise kann in einer ersten Verschiebestellung des Nockenträgers ein erstes Eingriffselement mit der Kurvenkulisse in Eingriff gebracht werden, um eine Verschiebung des Nockenträgers in eine zweite Verschiebestellung herbeizuführen, wo dann ein zweites Eingriffselement mit der Kurvenkulisse in Eingriff gebracht werden kann, um den Nockenträger in eine dritte Verschiebestellung weiterzubewegen. Wenn der Nockenträger in mehr als drei unterschiedliche Verschiebestellungen bewegt werden soll, kann das Stellorgan entsprechend mehr als zwei Eingriffselemente umfassen, die nacheinander mit der Kurvenkulisse in Eingriff gebracht werden können, um den Nockenträger jeweils um den Mittenabstand zweier benachbarter Nockenprofile weiterzubewegen.These The object is achieved according to the invention the actuator has at least two engagement elements, which can alternatively be brought into engagement with the curve scenery. In this way, in a first displacement position of the cam carrier a first engagement member is brought into engagement with the cam be a shift of the cam carrier in one bring about second displacement position, where then a second engagement element can be engaged with the curve backdrop to the cam carrier move on to a third displacement position. If the cam carrier be moved in more than three different displacement positions should, the actuator can correspondingly more than two engagement elements include successively engaged with the cam can be around the cam carrier each to move the center distance between two adjacent cam profiles.
Grundsätzlich
kann das Stellorgan mit den Eingriffselementen wie bei Ventiltrieben
mit einem konventionellen Aufbau gemäß der eingangs
genannten
Wenn der Nockenträger aus einer ersten äußeren Verschiebestellung in eine zweite mittlere Verschiebestellung bewegt werden soll, werden bei einem Stellorgan mit zwei Eingriffselementen zweckmäßig beide Eingriffselemente durch Betätigung ihres Stellorgans über die Umfangsfläche des Nockenträgers hinaus ausgefahren, wobei eines der beiden Eingriffselemente mit der Kurvenkulisse in Eingriff tritt. Die Kurvenkulisse weist eine in Umfangsrichtung und in axialer Richtung des Kulissenelements verlaufende Nut auf, deren axiale Erstreckung dem Mittenabstand zweier benachbarter Nockenprofile auf den Nockenträgern bzw. dem Abstand zweier benachbarter Verschiebestellungen entspricht, so dass der Nockenträger während des Eingriffs des einen Eingriffselements in die Nut um dieses Maß axial verschoben wird. Wenn der Nockenträger aus der zweiten mittleren Verschiebestellung in eine dritte äußere Verschiebestellung weiterbewegt werden soll, werden die beiden Eingriffselemente durch Betätigung ihres Stellorgans erneut über die Umfangsfläche des Nockenträgers hinaus ausgefahren, wobei jedoch infolge der vorangehenden Verschiebung des Nockenträgers das andere der beiden Eingriffselemente mit der Kurvenkulisse in Eingriff tritt, sofern der Mittenabstand der beiden Eingriffselemente gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung dem Mittenabstand zweier benachbarter Nockenprofile auf den Nockenträgern bzw. dem Abstand zweier benachbarter Verschiebestellungen entspricht. Wenn der Nockenträger in der zweiten Verschiebestellung bleiben soll, wird das Stellorgan nur einmal betätigt.If the cam carrier from a first outer displacement position in a second middle Ver sliding position is to be moved, in an actuator with two engagement elements expediently both engagement elements extended by actuation of its actuator beyond the peripheral surface of the cam carrier out, wherein one of the two engagement elements engages with the curve backdrop. The curve backdrop has a groove extending in the circumferential direction and in the axial direction of the sliding element whose axial extension corresponds to the center distance of two adjacent cam profiles on the cam carriers or the distance between two adjacent displacement positions, so that the cam carrier during engagement of the one engagement element in the groove this dimension is moved axially. When the cam carrier is to be moved from the second central displacement position to a third outer displacement position, the two engagement elements are extended by actuation of their actuator again beyond the peripheral surface of the cam carrier out, but due to the previous displacement of the cam carrier, the other of the two engagement elements with the curve backdrop engages, provided that the center distance of the two engagement elements according to a further advantageous embodiment of the invention corresponds to the center distance between two adjacent cam profiles on the cam carriers or the distance between two adjacent displacement positions. If the cam carrier is to remain in the second displacement position, the actuator is actuated only once.
Um
den Nockenträger in der gewünschten Stellung festzuhalten,
können Rastmittel vorgesehen sein, die bei Ventiltrieben
mit einem konventionellem Aufbau, wie in der eingangs genannten
Die Rückstellung des Nockenträgers erfolgt in analoger Weise wie bei diesem Stand der Technik mit Hilfe eines weiteren Stellorgans nebst zwei oder mehr Eingriffselementen sowie einer gegenüberliegenden Kurvenkulisse, die wie die zuvor beschriebene Kurvenkulisse eine in Umfangsrichtung und in axialer Richtung verlaufende Nut aufweist, jedoch mit gegensinniger Richtung.The Return of the cam carrier takes place in analogue As in this prior art with the help of another Actuator together with two or more engaging elements and a opposite curved backdrop, like those previously described Curve scenery one extending in the circumferential direction and in the axial direction Groove, but with opposite direction.
Zum Ausfahren der Eingriffselemente umfasst das Stellorgan vorzugsweise eine in einem Gehäuse angeordnete Magnetspule, während die Eingriffselemente jeweils einen Teil aus permanentmagnetischem Material umfassen, der bei Stromzufuhr zur Magnetspule von dieser abgestoßen wird, um die Eingriffelemente durch eine jeweilige Austrittsöffnung aus dem Gehäuse herauszubewegen.To the Extending the engagement elements preferably comprises the actuator a solenoid disposed in a housing while the engagement elements each one part of permanent magnetic Material include, when powered to the solenoid from this is repelled to the engagement elements by a respective Outlet opening to move out of the housing.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung wird der Eingriff von nur einem der Eingriffelemente mit der Kurvenkulisse dadurch erreicht, dass die Kurvenkulisse eine einzige Nut aufweist, die bei der Betätigung des Stellorgans gegenüber von einem der Eingriffselemente angeordnet ist. Das andere oder die anderen Eingriffselemente sind hingegen gegenüber von einem Teil des Kulissenelements angeordnet, dessen Abstand vom vorderen Ende des Eingriffselements oder der Eingriffselemente so gering ist, dass dieses letztere oder diese letzteren in das Gehäuse zurückprallen. Sowohl das oder die zurückprallenden Eingriffselemente als auch das in die Nut eingreifende Eingriffselement werden durch Magnetkräfte in ihrer eingefahrenen bzw. ausgefahrenen Stellung festgehalten. Durch die Bewegung des ausgefahrenen Eingriffselements entlang der Nut wird der Nockenträger im Zuge einer Drehung der Nockenwelle um etwa 180 Grad in die benachbarte Verschiebestellung bewegt.According to one Another preferred embodiment of the invention is the intervention achieved by only one of the engagement elements with the curve scenery thereby that the curve backdrop has a single groove, which upon actuation the actuator relative to one of the engagement elements is arranged. The other or the other engagement elements, however, are arranged opposite a part of the gate element, whose distance from the front end of the engagement element or the Engagement elements is so low that this latter or these latter bounce back into the case. Both the or the rebounding engagement elements as well as the in the groove engaging engagement element are by magnetic forces held in their retracted or extended position. By the movement of the extended engagement element along the Groove becomes the cam carrier in the course of a rotation of the camshaft moved by about 180 degrees in the adjacent displacement position.
Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:in the The following is the invention with reference to an illustrated in the drawing Embodiment explained in more detail. Show it:
Bei
dem in der Zeichnung nur teilweise dargestellten Ventiltrieb für
eine Mehrzahl von Einlassventilen
Wie
am besten in
Wie
am besten in
Wie
am besten in den
Jeder
der beiden Nocken
Von
den drei Nockenprofilen
Die
axiale Verschiebung der Nockenträger
Wie
am besten in
Um
die axiale Verschiebung der Nockenträger
Wie
am besten in
Die
beiden nebeneinander im Gehäuse angeordneten Eingriffsbolzen
Die
zwei halbringförmigen Kulissenelemente
Wie
am besten in
Wenn
die Nockenträger
Wenn
die Nockenträger
- 11
- Einlassventilintake valve
- 22
- Einlassventilintake valve
- 33
- Einlassventilintake valve
- 44
- Einlassventilintake valve
- 55
- Nockenwellecamshaft
- 66
- Nockenträgercam support
- 77
- Nockenträgercam support
- 88th
- Nockencam
- 99
- Nockencam
- 1010
- RollenschlepphebelRoller cam
- 1111
- Rollerole
- 1212
- Ventiltellervalve disc
- 1313
- Ventilgliedvalve member
- 1414
- Ventilfedervalve spring
- 1515
- VentilspielausgleichselementLash adjuster
- 1616
- Lagercamp
- 1717
- Lagerbockbearing block
- 1818
- Nockenprofilcam profile
- 1919
- Nockenprofilcam profile
- 2020
- GrundkreisprofilBase circle profile
- 2121
- Drehachse Nockenwelleaxis of rotation camshaft
- 2222
- GrundkreisabschnittBase circle portion
- 2323
- Innenverzahnung Nockenträgerinternal gearing cam support
- 2424
- Außenverzahnung Nockenwelleexternal teeth camshaft
- 2525
- erweitertes Stirnende Nockenträgerexpanded Frontal cam carrier
- 2626
- erweitertes Stirnende Nockenträgerexpanded Frontal cam carrier
- 2727
- Eingriffsbolzenengagement pin
- 2828
- Eingriffsbolzenengagement pin
- 2929
- Kurvenkulissecurve backdrop
- 3030
- Kulissenelementlink element
- 3131
- Kulissenelementlink element
- 3232
- Stellorganactuator
- 3333
- Gehäusecasing
- 3434
- ferromagnetisches Stirnendeferromagnetic front end
- 3535
- Gehäusevorsprunghousing projection
- 3636
- Austrittsöffnungenoutlet openings
- 3737
- Magnetspulesolenoid
- 3838
- WeicheisenkernSoft iron core
- 3939
- Fußteil Eingriffsbolzenfootboard engagement pin
- 4040
- permanentmagnetisches Materialpermanent magnet material
- 4141
- Nutgroove
- 4242
- Ringspaltannular gap
- 4343
- Teil des Kulissenelementspart of the backdrop element
- 4444
- Teil des Kulissenelementspart of the backdrop element
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102004011586 A1 [0003, 0007, 0009] - DE 102004011586 A1 [0003, 0007, 0009]
- - DE 102004021375 A1 [0003] DE 102004021375 A1 [0003]
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007010156A DE102007010156A1 (en) | 2007-03-02 | 2007-03-02 | Valve drive unit for a combustion engine comprises an adjusting unit having interacting elements which interact alternately with a curved connecting part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007010156A DE102007010156A1 (en) | 2007-03-02 | 2007-03-02 | Valve drive unit for a combustion engine comprises an adjusting unit having interacting elements which interact alternately with a curved connecting part |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007010156A1 true DE102007010156A1 (en) | 2008-09-04 |
Family
ID=39670049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007010156A Withdrawn DE102007010156A1 (en) | 2007-03-02 | 2007-03-02 | Valve drive unit for a combustion engine comprises an adjusting unit having interacting elements which interact alternately with a curved connecting part |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007010156A1 (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009152951A1 (en) * | 2008-06-20 | 2009-12-23 | Daimler Ag | Valve train device |
DE102008060166A1 (en) * | 2008-11-27 | 2010-06-02 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Valve train for gas shuttle valve of internal combustion engine, comprises cam shaft, which is swivelingly stored in housing of internal combustion engine |
DE102009006894A1 (en) * | 2009-01-28 | 2010-07-29 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Device for switching operation of a hydraulic valve clearance compensation element |
WO2010097298A1 (en) * | 2009-02-27 | 2010-09-02 | Schaeffler Technologies Gmbh & Co. Kg | Electromagnetic actuating device |
DE102009015486A1 (en) | 2009-03-28 | 2010-09-30 | Schaeffler Technologies Gmbh & Co. Kg | Electromagnetic actuator comprises housing with electrically energized magnetic coil device, and magnetic coil device generates magnetic field, where stationary core area is commonly assigned to permanent magnets |
DE102009053121A1 (en) | 2009-11-13 | 2011-05-19 | Schaeffler Technologies Gmbh & Co. Kg | Electromagnetic actuating device for controlling stroke-variable valve drive of internal-combustion engine, has locking pins subjected with force by magnetic circuit in electromagnet in extending direction for blocking latch |
US20110267159A1 (en) * | 2008-12-03 | 2011-11-03 | Eto Magnetic Gmbh | Electromagnetic actuator device |
CN102639824A (en) * | 2009-12-02 | 2012-08-15 | 谢夫勒科技股份两合公司 | Electromagnetic actuating device |
WO2012171545A1 (en) * | 2011-06-16 | 2012-12-20 | Daimler Ag | Internal combustion engine valve drive device for a motor vehicle |
DE102011122451A1 (en) | 2011-12-22 | 2013-06-27 | Daimler Ag | Valve train for an internal combustion engine |
WO2013131602A1 (en) * | 2012-03-08 | 2013-09-12 | Daimler Ag | Internal combustion engine valve train adjustment device |
DE102012111851A1 (en) * | 2012-12-05 | 2014-06-05 | Eto Magnetic Gmbh | Electromagnetic actuator |
DE102013108029A1 (en) * | 2013-07-26 | 2015-01-29 | Eto Magnetic Gmbh | Electromagnetic actuator |
JP2015514914A (en) * | 2012-04-27 | 2015-05-21 | イー・アー・フアウ・ゲゼルシヤフト・ミト・ベシュレンクテル・ハフツング・インゲニオールゲゼルシヤフト・アウト・ウント・フエルケール | Method for a valve drive for switching the stroke of a gas exchange valve of an internal combustion engine |
WO2016000965A1 (en) * | 2014-06-30 | 2016-01-07 | Thyssenkrupp Presta Teccenter Ag | Camshaft for the valve drive of an internal combustion engine with a variable valve opening duration |
WO2017045008A1 (en) * | 2015-09-18 | 2017-03-23 | Avl List Gmbh | Variable valve control device for internal combustion engines |
CN110131009A (en) * | 2019-05-09 | 2019-08-16 | 杰锋汽车动力系统股份有限公司 | A kind of two-stage variable air valve lift range mechanism for internal combustion engine |
DE102011002142B4 (en) | 2011-04-18 | 2022-07-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Gate circuit for a camshaft |
DE102021129222A1 (en) | 2021-11-10 | 2023-05-11 | Schaeffler Technologies AG & Co. KG | Electromagnetic actuator |
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Effective date: 20140730 |