DE102004002301A1 - Process to manufacture an automotive camshaft by application of a sleeve-fit extension to main camshaft section - Google Patents
Process to manufacture an automotive camshaft by application of a sleeve-fit extension to main camshaft section Download PDFInfo
- Publication number
- DE102004002301A1 DE102004002301A1 DE200410002301 DE102004002301A DE102004002301A1 DE 102004002301 A1 DE102004002301 A1 DE 102004002301A1 DE 200410002301 DE200410002301 DE 200410002301 DE 102004002301 A DE102004002301 A DE 102004002301A DE 102004002301 A1 DE102004002301 A1 DE 102004002301A1
- Authority
- DE
- Germany
- Prior art keywords
- camshaft
- cam
- basic
- shaft end
- basic camshaft
- 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.)
- Ceased
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F01L1/022—Chain drive
-
- 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
- F01L1/042—Cam discs
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
- F16H53/025—Single-track cams for single-revolution cycles; Camshafts with such cams characterised by their construction, e.g. assembling or manufacturing features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/02—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung einer gebauten Nockenwelle gemäß dem Oberbegriff des Patentanspruches 1.The The invention relates to a method for producing a built Camshaft according to the preamble of claim 1.
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 Hubes der Gaswechselventile ermöglichen.to Improvement of the thermodynamic properties of internal combustion engines are known mechanical devices that the working cycle of the Valve drive affect and, for example, a speed-dependent change the opening hours or the stroke of the gas exchange valves allow.
Aus
der Druckschrift
Durch das auf der Grundnockenwelle axiale Verschieben des Nockenstückes kann von einer Nockenlaufbahn auf eine andere Nockenlaufbahn umgeschaltet werden, wodurch ein Gaswechselventil von der Hubkonturen der jeweiligen Nockenlaufbahnen betätigt wird. Die Hubkonturen können sich in der Höhe des Hubes, dem Verlauf des Hubes und in der Phasenlage unterscheiden.By that on the base camshaft axial displacement of the cam piece can switched from one cam track to another cam track be, whereby a gas exchange valve of the stroke contours of the respective Cam tracks pressed becomes. The stroke contours can in height of the stroke, the course of the stroke and in the phase position differ.
Die Herstellung von Nockenwellen mit axial verschiebbaren Nockenstücken ist dadurch problematisch, dass moderne Nockenwellen an beiden Enden Wellenendstücke aufweisen, die einen größeren Durchmesser aufweisen als die Grundnockenwelle, wodurch die Nockenstücke nicht einfach auf die Grundnockenwellen aufgeschoben können. Derartige Wellenendstücke werden beispielsweise von Kettenrädern, Pumpennocken oder Lagerelementen gebildet.The Manufacture of camshafts with axially displaceable cam pieces is This is problematic in that modern camshafts at both ends shaft end have a larger diameter as the basic camshaft, whereby the cam pieces are not simply pushed onto the base camshafts. Such shaft ends are for example, sprockets, Pump cam or bearing elements formed.
Der Erfindung liegt die Aufgabe zugrunde ein Verfahren zur Herstellung einer gebauten Nockenwelle gemäß dem Oberbegriff des Patentanspruches 1 anzugeben, bei dem die Nockenstücke auf einer Grundnockenwelle aufgeschoben werden können. Dabei soll die Herstellung der gebauten Nockenwelle kostengünstig durchzuführen sein. Zudem sollen das Verfahren für unterschiedliche gebaute Nockenwellen angewendet werden können, ohne dass die Nockenstücke verändert werden brauchen.Of the Invention is based on a process for the preparation of the object a built-up camshaft according to the preamble specify of the claim 1, wherein the cam pieces on a basic camshaft can be postponed. This is the production the built camshaft cost perform be. In addition, the process for different built Camshafts can be applied without the cam pieces changed will need.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale in den Kennzeichen des Patentanspruchs 1 gelöst, wonach zuerst eine stabförmige Grundnockenwelle gefertigt wird. Auf diese stabförmige Grundnockenwelle werden die Nockenstücke aufgeschoben. Danach wird an mindestens einem Ende der Grundnockenwelle ein Wellenendstück mit der Grundnockenwelle verbunden.These The object is achieved by the Characteristics solved in the characteristics of claim 1, according to which first a rod-shaped basic camshaft is manufactured. On this rod-shaped Base camshaft, the cam pieces are pushed. After that will at least one end of the basic camshaft shaft end piece with the Basic camshaft connected.
Dieses Wellenendstück, das beispielsweise von einem Kettenrad, einem Pumpennocken oder von einem Nockenwellenlager gebildet wird, weist dabei in der Regel einen größeren Durchmesser auf als die stabförmige Grundnockenwelle. Das Verbinden der Wellenendstücke erfolgt vorteilhaft durch Schweißen, Kleben, Aufschrumpfen, Schrauben, Nieten oder Löten. Dabei können an jedem Ende der Grundnockenwelle auch mehrer Wellenendstücke hintereinander angeordnet werden.This shaft end, for example, from a sprocket, a pump cam or from a camshaft bearing is formed, it has in the rule a larger diameter on as the rod-shaped Base camshaft. The connection of the shaft end pieces is advantageously carried out by welding, gluing, Shrink, screw, rivet or solder. It can at each end of the basic camshaft also several shaft end pieces in a row to be ordered.
Nach der Herstellung der stabförmigen Grundnockenwelle und nach dem Aufschieben der Nockenstücke auf die Grundnockenwelle können an den entgegengesetzten Enden der Grundnockenwelle ein erste Wellenendstück und ein zweites Wellenendstück befestigt werden.To the production of the rod-shaped base camshaft and after pushing the cam pieces onto the basic camshaft can at the opposite ends of the basic camshaft, a first shaft end piece and a second shaft end piece be attached.
Vorteilhafter ist es jedoch bereits bei der Herstellung der stabförmigen Grundnockenwelle an einem Ende der Grundnockenwelle ein erstes Wellenendstück auszubilden, wobei die Grundnockenwelle und das erste Wellenendstück aus einem Stück bestehen.Favorable However, it is already in the production of the rod-shaped base camshaft to form a first shaft end piece at one end of the basic camshaft, wherein the base camshaft and the first shaft end of a Piece exist.
Alternativ kann das erste Wellenendstück nach der Fertigung der stabförmigen Grundnockenwelle und vor dem Aufschieben der Nockenstücke mit der Grundnockenwelle verbunden werden. Muss eines der Wellenendstücke nach dem Verbinden mit der Grundnockenwelle nachbearbeitet, beispielsweise nochmals abgedreht werden, wird dieses Wellenendstück als erstes Wellenendstück mit der Grundnockenwelle verbunden.alternative can the first shaft end piece after the production of the rod-shaped Base camshaft and before pushing the cam pieces with the basic camshaft are connected. Must one of the shaft end pieces after reworked the connection with the base camshaft, for example be turned off again, this shaft end is the first shaft end connected to the basic camshaft.
Beim Aufschieben der Nockenstücke auf die Grundnockenwelle werden die Nockenstück zur Grundnockenwelle und die Nockenstücke zueinander ausgerichtet, so dass die Nockenstück das Arbeitspiel der Brennkraftmaschine durchlaufen kann.At the Slide on the cam pieces on the basic camshaft, the cam piece to the base camshaft and the cam pieces aligned with each other, so that the cam piece the work cycle of the internal combustion engine can go through.
In die Nockenwelle werden vorzugsweise bei der Fertigung der stabförmigen Grundnockenwelle Verbindungselemente für die Nockenstücke eingebracht, die beispielsweise in der Grundnockenwelle als Außenvielzahn ausgebildet werden, wobei in den Nockenstücken ein Innenvielzahn ausgebildet wird.In the camshaft are preferably in the production of the rod-shaped base camshaft connecting elements for the cam pieces introduced, for example, in the basic camshaft as Außenvielzahn be formed, wherein formed in the cam pieces a Innenvielzahn becomes.
In einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die stabförmige Grundnockenwelle als Hohlwelle ausgebildet wird. Die als Hohlwelle ausgebildete stabförmige Grundnockenwelle kann vorteilhaft durch Innenhochdruckumformung bearbeitet werden. Dabei können vorteilhaft die Verbindungselemente ausgebildet werden.In an advantageous development of the invention it is provided that the rod-shaped base camshaft is formed as a hollow shaft. As Hollow shaft formed rod-shaped camshaft can be advantageously processed by hydroforming. In this case, advantageously, the connecting elements can be formed.
Die Nockenstücke werden von einer Federraste in ihrer Position gehalten. Damit die Nockenstück bei der Handhabung der Grundnockenwelle und beim Verbinden mit den Wellenendstücken mit der Grundnockenwelle in ihrer Position fixiert sind, werden zwischen die Nockenstücke seitlich abziehbare Distanzringe auf die Grundnockenwelle aufgesetzt.The cam pieces are held in position by a spring catch. So that cam piece when handling the basic camshaft and when connecting to the Wellenendstücken are fixed in position with the basic camshaft between the cam pieces laterally removable spacers mounted on the base camshaft.
Durch das erfindungsgemäße Verfahren zur Herstellung einer gebauten Nockenwelle werden die Nockenstücke auf der Grundnockenwelle in der für die Montage der Nockenwelle notwendigen Position platziert. Dabei ist das Herstellungsverfahren kostengünstig anzuwenden. Darüber hinaus können die Nockenwellen bei notwendig gewordenen Modifikationen leicht angepasst werden.By the inventive method to make a built camshaft, the cam pieces on the basic camshaft in the for the Assembly of the camshaft necessary position. It is apply the manufacturing process cost-effectively. Furthermore can the camshafts easily become necessary modifications be adjusted.
Im folgenden ist das erfindungsgemäße Verfahren zur Herstellung einer gebauten Nockenwelle anhand von einem Ausführungsbeispiel im Zusammenhang mit zwei Figuren dargestellt und erläutert.in the The following is the method according to the invention for producing a built camshaft based on an embodiment illustrated and explained in connection with two figures.
Es zeigen:It demonstrate:
Eine vierzylindrige Brennkraftmaschine mit zwei obenliegenden Nockenwellen zum Antrieb eines Kraftfahrzeuges ist mit einer Vorrichtung zum Verstellen des Hubes und der Öffnungszeiten der einlassseitigen Gaswechselventile ausgestattet. Die Vorrichtung besteht im wesentlichen aus Bauteilen, die auf der die einlassseitigen Gaswechselventile betätigenden Nockenwelle angeordnet sind.A four-cylinder internal combustion engine with two overhead camshafts to drive a motor vehicle is equipped with a device for adjusting the stroke and the opening times the inlet-side gas exchange valves equipped. The device consists essentially of components that are on the inlet side Actuating gas exchange valves Camshaft are arranged.
Die
die Drehfestigkeit bei gleichzeitiger axialer Verschiebbarkeit ermöglichende
Verbindung zwischen der Grundnockenwelle
Die
beiden äußeren Enden
der Nockenwelle
Um
die Wellenendstück
mit der Grundnockenwelle
Das
axiale Verschieben der Nockenstücke
Jedes
Nockenstück
Bei
der dargestellten Nockenwelle
Danach
wurden als erste Wellenendstücke an
einem Ende der Grundnockenwelle
Das
Axiallager
Anschließend werden
die Nockenstücke
Die
Nockenstücke
werden auf der Grundnockenwelle von einer Federraste in ihrer Position
gehalten, wobei die Grundnockenwelle
Im
Anschluss dessen werden auf das noch freie Ende der Grundnockenwelle
Durch das erfindungsgemäße Verfahren zur Herstellung der gebauten Nockenwelle werden die Nockenstücke auf der Grundnockenwelle in der für den Betrieb der Brennkraftmaschine notwendigen Position platziert. Dabei ist das Herstellungsverfahren kostengünstig anzuwenden. Darüber hinaus können die Nockenwellen bei notwendig gewordenen Modifikationen, bei der Anpassung der Nockenstücke für leistungsstärkere Brennkraftmaschinen und bei der Entwicklung neuer Brennkraftmaschinen leicht angepasst werden.By the inventive method to make the built camshaft, the cam pieces on the basic camshaft in the for the Operation of the internal combustion engine necessary position. there the manufacturing process is inexpensive to apply. Furthermore can the camshafts when necessary modifications, in the Adaptation of the cam pieces for more powerful internal combustion engines and slightly adapted in the development of new internal combustion engines become.
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410002301 DE102004002301A1 (en) | 2004-01-16 | 2004-01-16 | Process to manufacture an automotive camshaft by application of a sleeve-fit extension to main camshaft section |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410002301 DE102004002301A1 (en) | 2004-01-16 | 2004-01-16 | Process to manufacture an automotive camshaft by application of a sleeve-fit extension to main camshaft section |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004002301A1 true DE102004002301A1 (en) | 2005-08-11 |
Family
ID=34744784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410002301 Ceased DE102004002301A1 (en) | 2004-01-16 | 2004-01-16 | Process to manufacture an automotive camshaft by application of a sleeve-fit extension to main camshaft section |
Country Status (1)
Country | Link |
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DE (1) | DE102004002301A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007027979A1 (en) * | 2007-06-19 | 2009-01-02 | Audi Ag | Valve drive for gas exchange valves of internal combustion engine, has camshaft, two cam pieces and holders, which are integrally formed on upper part of two-piece cylinder head housing |
WO2009056237A1 (en) * | 2007-11-02 | 2009-05-07 | Daimler Ag | Valve driving device |
WO2009065478A1 (en) * | 2007-11-24 | 2009-05-28 | Daimler Ag | Valve gear mechanism |
WO2010048937A1 (en) * | 2008-10-29 | 2010-05-06 | Neumayer Tekfor Holding Gmbh | Camshaft and method for producing the same |
DE102009022657A1 (en) * | 2009-05-26 | 2011-01-05 | Audi Ag | Camshaft for valve train of internal-combustion engine, has cam carrier axially supported on base shaft in relocatable manner and comprising internal teeth cooperated with external teeth, where teeth are made of fiber-reinforced plastic |
DE102009057633B3 (en) * | 2009-12-09 | 2011-03-31 | Thyssenkrupp Presta Teccenter Ag | Method of making a built camshaft, camshaft body and camshaft |
US20120017721A1 (en) * | 2009-03-25 | 2012-01-26 | Audi Ag | Shaft-hub connection |
WO2012167867A1 (en) * | 2011-06-08 | 2012-12-13 | Schaeffler Technologies Ag & Co Kg | Mounting of a camshaft |
WO2012171545A1 (en) * | 2011-06-16 | 2012-12-20 | Daimler Ag | Internal combustion engine valve drive device for a motor vehicle |
WO2013017270A1 (en) * | 2011-08-02 | 2013-02-07 | Audi Ag | Valvetrain of an internal combustion engine, an internal combustion engine, and a method for producing a corresponding valvetrain |
KR101288649B1 (en) | 2011-04-18 | 2013-07-22 | 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 | Camshaft having a sliding piece which has different cam profiles |
CN104551530A (en) * | 2014-12-23 | 2015-04-29 | 绵阳华晨瑞安汽车零部件有限公司 | Combined cam shaft assembling method and device |
DE102005020236B4 (en) * | 2005-04-30 | 2016-02-25 | Audi Ag | Method for mounting a camshaft on the cylinder head of an internal combustion engine |
CN112621118A (en) * | 2020-12-08 | 2021-04-09 | 四川银钢一通凸轮轴有限公司 | Camshaft machining device and method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61212615A (en) * | 1985-03-19 | 1986-09-20 | Suzuki Motor Co Ltd | Valve-timing varying apparatus for 4-cycle engine |
JPH0216312A (en) * | 1988-06-30 | 1990-01-19 | Suzuki Motor Co Ltd | Variable valve timing device |
DE4230877A1 (en) * | 1991-09-30 | 1993-04-01 | Volkswagen Ag | Control for lift valve with two cams - comprises cam block containing two cams which is axially displaceable but non rotatable peripherally on camshaft |
DE69711216T2 (en) * | 1996-11-19 | 2002-08-29 | Toyota Jidosha K.K., Toyota | Variable valve timing in an internal combustion engine |
DE102004011586A1 (en) * | 2003-03-21 | 2004-10-07 | Audi Ag | Valve gear for internal combustion engine has facility whereby in first and second axial positions of cam carrier first and second stop faces fixed on cam carrier bear against respective first and second stop faces fixed on cylinder head |
-
2004
- 2004-01-16 DE DE200410002301 patent/DE102004002301A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61212615A (en) * | 1985-03-19 | 1986-09-20 | Suzuki Motor Co Ltd | Valve-timing varying apparatus for 4-cycle engine |
JPH0216312A (en) * | 1988-06-30 | 1990-01-19 | Suzuki Motor Co Ltd | Variable valve timing device |
DE4230877A1 (en) * | 1991-09-30 | 1993-04-01 | Volkswagen Ag | Control for lift valve with two cams - comprises cam block containing two cams which is axially displaceable but non rotatable peripherally on camshaft |
DE69711216T2 (en) * | 1996-11-19 | 2002-08-29 | Toyota Jidosha K.K., Toyota | Variable valve timing in an internal combustion engine |
DE102004011586A1 (en) * | 2003-03-21 | 2004-10-07 | Audi Ag | Valve gear for internal combustion engine has facility whereby in first and second axial positions of cam carrier first and second stop faces fixed on cam carrier bear against respective first and second stop faces fixed on cylinder head |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005020236B4 (en) * | 2005-04-30 | 2016-02-25 | Audi Ag | Method for mounting a camshaft on the cylinder head of an internal combustion engine |
DE102007027979A1 (en) * | 2007-06-19 | 2009-01-02 | Audi Ag | Valve drive for gas exchange valves of internal combustion engine, has camshaft, two cam pieces and holders, which are integrally formed on upper part of two-piece cylinder head housing |
DE102007027979B4 (en) * | 2007-06-19 | 2015-07-23 | Audi Ag | Valve train for gas exchange valves of an internal combustion engine with camshaft tunnel bearings |
WO2009056237A1 (en) * | 2007-11-02 | 2009-05-07 | Daimler Ag | Valve driving device |
WO2009065478A1 (en) * | 2007-11-24 | 2009-05-28 | Daimler Ag | Valve gear mechanism |
WO2010048937A1 (en) * | 2008-10-29 | 2010-05-06 | Neumayer Tekfor Holding Gmbh | Camshaft and method for producing the same |
DE102008053723B4 (en) | 2008-10-29 | 2023-12-07 | Neumayer Tekfor Engineering Gmbh | Built camshaft |
US20120017721A1 (en) * | 2009-03-25 | 2012-01-26 | Audi Ag | Shaft-hub connection |
US8844403B2 (en) * | 2009-03-25 | 2014-09-30 | Audi Ag | Shaft-hub connection |
DE102009022657A1 (en) * | 2009-05-26 | 2011-01-05 | Audi Ag | Camshaft for valve train of internal-combustion engine, has cam carrier axially supported on base shaft in relocatable manner and comprising internal teeth cooperated with external teeth, where teeth are made of fiber-reinforced plastic |
WO2011069591A1 (en) * | 2009-12-09 | 2011-06-16 | Thyssenkrupp Presta Teccenter Ag | Assembled camshaft, main camshaft body and method for producing an assembled camshaft |
DE102009057633B3 (en) * | 2009-12-09 | 2011-03-31 | Thyssenkrupp Presta Teccenter Ag | Method of making a built camshaft, camshaft body and camshaft |
CN102883854A (en) * | 2009-12-09 | 2013-01-16 | 蒂森克虏伯普利斯坦科技中心股份公司 | Assembled camshaft, main camshaft body and method for producing an assembled camshaft |
US8844130B2 (en) | 2009-12-09 | 2014-09-30 | Thyssenkrupp Presta Teccenter Ag | Assembled camshaft, main camshaft body and method for producing an assembled camshaft |
KR101288649B1 (en) | 2011-04-18 | 2013-07-22 | 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 | Camshaft having a sliding piece which has different cam profiles |
US9121354B2 (en) | 2011-06-08 | 2015-09-01 | Schaeffler Technologies AG & Co. KG | Mounting of a camshaft |
WO2012167867A1 (en) * | 2011-06-08 | 2012-12-13 | Schaeffler Technologies Ag & Co Kg | Mounting of a camshaft |
WO2012171545A1 (en) * | 2011-06-16 | 2012-12-20 | Daimler Ag | Internal combustion engine valve drive device for a motor vehicle |
CN103732867A (en) * | 2011-08-02 | 2014-04-16 | 奥迪股份公司 | Valvetrain of an internal combustion engine, an internal combustion engine, and a method for producing a corresponding valvetrain |
WO2013017270A1 (en) * | 2011-08-02 | 2013-02-07 | Audi Ag | Valvetrain of an internal combustion engine, an internal combustion engine, and a method for producing a corresponding valvetrain |
US9255496B2 (en) | 2011-08-02 | 2016-02-09 | Audi Ag | Valve train of an internal combustion engine, an internal combustion engine, and a method for producing a corresponding valve train |
CN103732867B (en) * | 2011-08-02 | 2016-02-10 | 奥迪股份公司 | The distribution device of internal-combustion engine, internal-combustion engine and the method for the manufacture of corresponding distribution device |
CN104551530A (en) * | 2014-12-23 | 2015-04-29 | 绵阳华晨瑞安汽车零部件有限公司 | Combined cam shaft assembling method and device |
CN112621118A (en) * | 2020-12-08 | 2021-04-09 | 四川银钢一通凸轮轴有限公司 | Camshaft machining device and method |
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