DE102011056833A1 - Valve train device for internal combustion engine, has cam elements that are provided with first and second transmitter wheels, and third torque-proof and axially fixed transmitter wheel which is located on basic camshaft - Google Patents
Valve train device for internal combustion engine, has cam elements that are provided with first and second transmitter wheels, and third torque-proof and axially fixed transmitter wheel which is located on basic camshaft Download PDFInfo
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- DE102011056833A1 DE102011056833A1 DE102011056833A DE102011056833A DE102011056833A1 DE 102011056833 A1 DE102011056833 A1 DE 102011056833A1 DE 102011056833 A DE102011056833 A DE 102011056833A DE 102011056833 A DE102011056833 A DE 102011056833A DE 102011056833 A1 DE102011056833 A1 DE 102011056833A1
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- wheel
- camshaft
- encoder wheel
- drive device
- cam
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- 238000002485 combustion reaction Methods 0.000 title claims description 12
- 238000011156 evaluation Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000012876 topography Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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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
- 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
- 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
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/04—Sensors
- F01L2820/041—Camshafts position or phase sensors
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
Description
Die vorliegende Erfindung betrifft eine Ventiltriebvorrichtung für eine Brennkraftmaschine. The present invention relates to a valve drive device for an internal combustion engine.
Es sind bereits Ventiltriebvorrichtungen für eine Brennkraftmaschine mit zumindest einem ersten Nockenelement und einem zweiten Nockenelement, die mittels einer Schaltkulisse axial verschiebbar sind und die dazu vorgesehen sind, einen schaltbaren Ventiltrieb bereitzustellen und mit einer Sensoreinheit, die dazu vorgesehen ist, eine Drehlage und/oder eine Phasenlage zumindest eines Nockenelementes zu bestimmen, bekannt. There are already valve drive devices for an internal combustion engine with at least a first cam element and a second cam element, which are axially displaceable by means of a shift gate and which are intended to provide a switchable valve train and with a sensor unit which is intended to a rotational position and / or a Phase position of at least one cam element to determine known.
Die
Die
Die
Aufgabe der vorliegenden Erfindung ist es, eine verbesserte Ventiltriebvorrichtung für eine Brennkraftmaschine vorzusehen, die es ermöglicht, eine Mehrzahl von Kenngrößen zu erfassen. The object of the present invention is to provide an improved valve drive device for an internal combustion engine, which makes it possible to detect a plurality of characteristics.
Die Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. Bevorzugte Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche. The object is solved by the features of the independent claims. Preferred embodiments of the invention are the subject of the dependent claims.
Die Erfindung gibt daher eine Ventiltriebvorrichtung für eine Brennkraftmaschine an. Die Ventiltriebvorrichtung weist eine Grundnockenwelle mit einem ersten drehfest und axial verschiebbar auf der Grundnockenwelle angeordneten Nockenelement sowie einem zweiten drehfest und axial verschiebbar auf der Grundnockenwelle angeordneten Nockenelement und einer Sensoreinheit auf. Das erste Nockenelement weist des Weiteren ein erstes Geberrad und das zweite Nockenelement ein zweites Geberrad auf. Auf der Grundnockenwelle ist ferner ein drittes, drehfest und axial fixiertes Geberrad angeordnet. Durch das Vorsehen eines Geberrads an den jeweiligen Nockenelementen kann bei einer axialen Verschiebung der Nockenelemente ebenfalls eine axiale Verschiebung der an den Nockenelementen vorgesehenen Geberräder erfolgen. The invention therefore provides a valve drive device for an internal combustion engine. The valve drive device has a base camshaft with a first cam member rotatably and axially displaceably arranged on the base camshaft and a second cam member and a sensor unit arranged non-rotatably and axially displaceably on the base camshaft. The first cam member further includes a first encoder wheel and the second cam member on a second encoder wheel. On the base camshaft a third, rotatably and axially fixed encoder wheel is also arranged. By providing an encoder wheel on the respective cam elements, an axial displacement of the encoder wheels provided on the cam elements can also take place with an axial displacement of the cam elements.
Vorzugsweise weist das erste und zweite Geberrad jeweils an einem Umfang eine Anzahl von Laschen und das dritte Geberrad an einem Umfang eine Mehrzahl von Zähnen auf. Durch die drehfeste Anordnung der Nockenelemente auf der Grundnockenwelle sowie die drehfeste Anordnung des dritten, auf der Grundnockenwelle axial fixierten Geberrads ist die Position der jeweiligen Laschen des ersten und zweiten Geberrads sowie der Zähne des dritten Geberrads bei einer Drehung der Nockenwelle gleich. Preferably, the first and second sender wheels each have a number of tabs on one circumference and the third sender wheel on a circumference a plurality of teeth. Due to the non-rotatable arrangement of the cam elements on the base camshaft and the rotationally fixed arrangement of the third, axially fixed to the base camshaft sender wheel, the position of the respective tabs of the first and second encoder wheel and the teeth of the third encoder wheel at a rotation of the camshaft is the same.
Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass das erste und zweite Geberrad derart axial verschiebbar sind, dass die Laschen in Zahnlücken des dritten Geberrads einschiebbar sind. Durch die axiale Verschiebbarkeit der jeweiligen Nockenelemente sowie den an den Nockenelementen angebrachten Geberrädern relativ zu dem auf der Grundnockenwelle axial fixierten Geberrad kann somit eine axiale Position der jeweiligen Nockenelemente durch eine entsprechende Sensoreinheit bestimmt werden. According to an advantageous embodiment of the invention, it is provided that the first and second encoder wheels are axially displaceable such that the tabs can be inserted into tooth gaps of the third encoder wheel. Due to the axial displaceability of the respective cam elements as well as the encoder wheels mounted on the cam elements relative to the encoder wheel axially fixed on the base camshaft, an axial position of the respective cam elements can thus be determined by a corresponding sensor unit.
In vorteilhafter Weise ist vorgesehen, dass die Anzahl von Laschen des ersten Geberrads und die Anzahl von Laschen des zweiten Geberrads unterschiedlich sind. Bei einer axialen Verschiebung des ersten Nockenelements und damit des auf dem ersten Nockenelement angeordneten Geberrads in Richtung des auf der Grundnockenwelle axial fixierten Geberrads, so dass die Lasche bzw. Laschen des ersten Geberrads in die Zahnlücken des dritten Geberrads eingeschoben werden, ergeben sich somit eine vorbestimmte Anzahl von Zahnlücken des auf der Grundnockenwelle axial fixierten Geberrads. Erfolgt im Gegensatz dazu eine axiale Verschiebung des zweiten Nockenelements und damit des an dem zweiten Nockenelement angeordneten zweiten Geberrads in Richtung des auf der Grundnockenwelle axial fixierten Geberrads, so dass die Lasche bzw. Laschen des zweiten Geberrads in die Zahnlücken des auf der Grundnockenwelle axial fixierten Geberrads eingeschoben werden, so ergibt sich wiederum eine vorbestimmte Anzahl von Zahnlücken des auf der Grundnockenwelle axial fixierten Geberrads. Die Anzahl von Zahnlücken des auf der Grundnockenwelle axial fixierten Geberrads ist bei Einschieben des ersten Geberrads, bei Einschieben des zweiten Geberrads, bei Einschieben von beiden Geberrädern sowie bei einem Nicht-Einschieben beider Geberräder jeweils unterschiedlich. Aufgrund der dadurch variierenden Anzahl von Zahnlücken des auf der Grundnockenwelle axial fixierten Geberrads kann dadurch eine axiale Position der jeweiligen Nockenelemente bestimmt werden. It is advantageously provided that the number of tabs of the first donor wheel and the number of tabs of the second donor wheel are different. With an axial displacement the first cam element and thus of the arranged on the first cam element encoder wheel in the direction of the base camshaft axially fixed encoder wheel, so that the tab or tabs of the first encoder wheel are inserted into the tooth spaces of the third encoder wheel, thus resulting in a predetermined number of tooth gaps on the base camshaft axially fixed encoder wheel. In contrast, an axial displacement of the second cam member and thus arranged on the second cam member second encoder wheel in the direction of the base camshaft axially fixed encoder wheel, so that the tab or tabs of the second encoder wheel in the tooth spaces of the base camshaft axially fixed encoder wheel be inserted, so again results in a predetermined number of tooth gaps of the base camshaft axially fixed encoder wheel. The number of tooth gaps of the encoder cam axially fixed on the camshaft is different when inserting the first encoder wheel, when inserting the second encoder wheel, when inserting two donor wheels and a non-insertion of both donor wheels. As a result of the varying number of tooth gaps of the encoder wheel axially fixed on the base camshaft, an axial position of the respective cam elements can thereby be determined.
Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Abstände der jeweiligen Zähne des dritten Geberrads unregelmäßig sind. Dies ermöglicht unabhängig von der axialen Position der jeweiligen Nockenelemente eine Bestimmung der radialen Position der Grundnockenwelle aufgrund der unterschiedlichen Abstände der jeweiligen Zähne bzw. der Breite der Zahnlücken des dritten Geberrads. According to an advantageous embodiment of the invention, it is provided that the distances of the respective teeth of the third encoder wheel are irregular. This allows independent of the axial position of the respective cam elements, a determination of the radial position of the base camshaft due to the different distances of the respective teeth or the width of the tooth gaps of the third encoder wheel.
Die Sensoreinheit ist vorzugsweise geeignet, eine axiale Position der jeweiligen Nockenelemente und eine radiale Position der Grundnockenwelle zu bestimmen. Für die Bestimmung dieser unterschiedlichen Kenngrößen wird lediglich ein Sensor benötigt. The sensor unit is preferably adapted to determine an axial position of the respective cam elements and a radial position of the base camshaft. For the determination of these different parameters only one sensor is needed.
Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Sensoreinheit geeignet ist, die axiale Position der jeweiligen Nockenelemente und die radiale Position der Grundnockenwelle durch Erfassen einer Anzahl und einer Breite der Zahnlücken des dritten Geberrads zu bestimmen. According to an advantageous development of the invention, it is provided that the sensor unit is suitable for determining the axial position of the respective cam elements and the radial position of the basic camshaft by detecting a number and a width of the tooth gaps of the third encoder wheel.
In vorteilhafter Weise ist des Weiteren vorgesehen, dass die Sensoreinheit an zentraler Position über dem dritten Geberrad angeordnet ist. Aufgrund der axialen Verschiebbarkeit des Geberrads des ersten Nockenelements sowie des Geberrads des zweiten Nockenelements in Verbindung mit dem Vorsehen des auf der Grundnockenwelle axial fixierten dritten Geberrads kann eine Anordnung der Sensoreinheit an zentraler Position über dem dritten Geberrad erfolgen, so dass eine axiale Verschiebbarkeit der Sensoreinheit bzw. ein Vorsehen einer Mehrzahl von Sensoreinheiten nicht erforderlich ist. In an advantageous manner, it is further provided that the sensor unit is arranged at a central position above the third encoder wheel. Due to the axial displaceability of the encoder wheel of the first cam element and the encoder wheel of the second cam element in connection with the provision of the third encoder wheel axially fixed on the base camshaft, an arrangement of the sensor unit at a central position on the third encoder wheel can take place, so that an axial displaceability of the sensor unit or A provision of a plurality of sensor units is not required.
Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Sensoreinheit ortsfest in einem Zylinderkopf der Brennkraftmaschine angeordnet ist. Ferner ist vorgesehen, dass die Sensoreinheit eine berührungslose Auswertung durchführen kann. According to an advantageous development of the invention, it is provided that the sensor unit is arranged stationarily in a cylinder head of the internal combustion engine. It is further provided that the sensor unit can perform a non-contact evaluation.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.
Es illustrieren: It illustrate:
In den Figuren bezeichnen gleiche Bezugszeichen gleiche oder funktionsgleiche Komponenten. In the figures, the same reference numerals designate the same or functionally identical components.
Eine Ventiltriebvorrichtung für eine Brennkraftmaschine gemäß
Das erste Nockenelement
Das Geberrad
Das Geberrad
Das zweite Nockenelement
Der Sensor
Die Aktuatoren
Die Rückschaltung der Zylinder in die Ausgangsstellung erfolgt nach dem oben beschriebenen Schema. Die Gestaltung der Geberräder
Andere Kombinationen von Zähnen und Zahnlücken in abweichender geometrischer Gestaltung, beispielsweise Zahnbreiten und -tiefen oder Zahnformen sind ebenso denkbar. Durch die möglichen Kombinationen der Geberräder ergeben sich unterschiedliche Anzahlen von Zahnlücken und -positionen. Diese werden durch den Sensor
Mit der Ventiltriebvorrichtung für eine Brennkraftmaschine gemäß der vorliegenden Erfindung ist des Weiteren beispielsweise ein gezieltes Abstellen eines Motors für eine Start-Stopp-Funktion möglich, so dass ein Schnellstart des Motors ausführbar ist. Überdies ist mit dem Sensor
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Grundnockenwelle base camshaft
- 22
- Aktuator actuator
- 33
- Aktuator actuator
- 44
- Aktuator actuator
- 55
- Aktuator actuator
- 66
- erstes Nockenelement first cam element
- 77
- Sensor sensor
- 88th
- Geberrad der Grundnockenwelle Encoder wheel of the basic camshaft
- 99
- Geberrad des ersten Nockenelements Encoder wheel of the first cam element
- 1010
- Geberrad des zweiten Nockenelements Encoder wheel of the second cam element
- 1111
- zweites Nockenelement second cam element
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102008036462 A1 [0003] DE 102008036462 A1 [0003]
- DE 102009014517 A1 [0004] DE 102009014517 A1 [0004]
- DE 102008049103 A1 [0005] DE 102008049103 A1 [0005]
Claims (10)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011056833.6A DE102011056833B4 (en) | 2011-12-21 | 2011-12-21 | Valve train device for an internal combustion engine |
RU2012152601/06A RU2526145C2 (en) | 2011-12-21 | 2012-12-06 | Ice valve gear drive |
CN2012105410643A CN103174486A (en) | 2011-12-21 | 2012-12-13 | Valve drive device used in internal combustion engine |
BR102012031927A BR102012031927A8 (en) | 2011-12-21 | 2012-12-14 | valve control device for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011056833.6A DE102011056833B4 (en) | 2011-12-21 | 2011-12-21 | Valve train device for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102011056833A1 true DE102011056833A1 (en) | 2013-06-27 |
DE102011056833B4 DE102011056833B4 (en) | 2023-03-23 |
Family
ID=48575155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011056833.6A Active DE102011056833B4 (en) | 2011-12-21 | 2011-12-21 | Valve train device for an internal combustion engine |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN103174486A (en) |
BR (1) | BR102012031927A8 (en) |
DE (1) | DE102011056833B4 (en) |
RU (1) | RU2526145C2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015058953A1 (en) * | 2013-10-24 | 2015-04-30 | Volkswagen Aktiengesellschaft | Camshaft arrangement of a reciprocating piston internal combustion engine and a reciprocating piston internal combustion engine having such a camshaft arrangement |
WO2015075518A1 (en) * | 2013-11-19 | 2015-05-28 | Toyota Jidosha Kabushiki Kaisha | Camshaft, cam angle detection device, and internal combustion engine |
DE102014211195A1 (en) | 2014-06-12 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | Method for determining a current axial position of a cam piece on a base camshaft of a valve train |
WO2016177479A1 (en) * | 2015-05-05 | 2016-11-10 | Volkswagen Aktiengesellschaft | Valve train device |
DE102015012287A1 (en) | 2015-09-23 | 2017-03-23 | Audi Ag | Valve train for an internal combustion engine |
CN107664047A (en) * | 2016-07-29 | 2018-02-06 | 上海汽车集团股份有限公司 | Engine cam axis adjustment device, valve mechanism and engine |
WO2018068875A1 (en) * | 2016-10-12 | 2018-04-19 | Daimler Ag | Valve train device |
CN108350769A (en) * | 2015-10-22 | 2018-07-31 | 舍弗勒技术股份两合公司 | The sliding slot section of cam member for valve device |
US20180258803A1 (en) * | 2017-03-07 | 2018-09-13 | GM Global Technology Operations LLC | Sliding camshaft barrel position sensing |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015104762B4 (en) * | 2015-03-27 | 2021-02-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle with internal combustion engine which has an adjustable compression ratio |
US10024206B2 (en) * | 2016-05-24 | 2018-07-17 | GM Global Technology Operations LLC | Sliding camshaft |
CN108561231B (en) * | 2017-06-09 | 2020-09-04 | 长城汽车股份有限公司 | Control strategy for continuously variable valve lift mechanism |
CN108223047B (en) * | 2017-06-09 | 2020-01-31 | 长城汽车股份有限公司 | Valve mechanism, engine and vehicle |
CN111396166A (en) * | 2020-04-16 | 2020-07-10 | 昆明云内动力股份有限公司 | Cam displacement type variable valve lift system and method |
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JP2001065371A (en) * | 1999-08-24 | 2001-03-13 | Toyota Motor Corp | Variable valve system for internal combustion engine |
DE102007037746B4 (en) * | 2007-08-10 | 2022-06-15 | Mercedes-Benz Group AG | Internal combustion engine valve train switching device |
-
2011
- 2011-12-21 DE DE102011056833.6A patent/DE102011056833B4/en active Active
-
2012
- 2012-12-06 RU RU2012152601/06A patent/RU2526145C2/en not_active IP Right Cessation
- 2012-12-13 CN CN2012105410643A patent/CN103174486A/en active Pending
- 2012-12-14 BR BR102012031927A patent/BR102012031927A8/en not_active Application Discontinuation
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DE102007054979A1 (en) * | 2007-11-17 | 2009-05-20 | Daimler Ag | Valve drive device |
DE102008036462A1 (en) | 2008-08-05 | 2010-02-11 | Daimler Ag | Valve drive device |
DE102008049103A1 (en) | 2008-09-26 | 2010-04-01 | Daimler Ag | Valve train device, particularly for internal combustion engine, has two cam elements which are axially adjusted by shifting gate, and sensor unit |
DE102009014517A1 (en) | 2009-03-23 | 2010-09-30 | Audi Ag | Valve train for gas exchange valves of internal combustion engine, has base cam shaft, cam carriers arranged on base cam shaft in torque-proof and axially movable manner, and device for detecting angular position of base cam shaft |
Cited By (17)
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CN105658916B (en) * | 2013-10-24 | 2018-10-19 | 大众汽车有限公司 | The cam assembly of reciprocating IC engine and reciprocating IC engine with such cam assembly |
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Also Published As
Publication number | Publication date |
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BR102012031927A2 (en) | 2014-07-29 |
BR102012031927A8 (en) | 2018-05-22 |
DE102011056833B4 (en) | 2023-03-23 |
RU2526145C2 (en) | 2014-08-20 |
RU2012152601A (en) | 2014-06-20 |
CN103174486A (en) | 2013-06-26 |
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