DE102011001711A1 - Valve train for internal combustion engine, has bearing sleeves fixed on side portions of sliding sleeve, and camshaft bearings axially displaceable with respect to bearing sleeves and rotatably mounted on camshaft - Google Patents
Valve train for internal combustion engine, has bearing sleeves fixed on side portions of sliding sleeve, and camshaft bearings axially displaceable with respect to bearing sleeves and rotatably mounted on camshaft Download PDFInfo
- Publication number
- DE102011001711A1 DE102011001711A1 DE102011001711A DE102011001711A DE102011001711A1 DE 102011001711 A1 DE102011001711 A1 DE 102011001711A1 DE 102011001711 A DE102011001711 A DE 102011001711A DE 102011001711 A DE102011001711 A DE 102011001711A DE 102011001711 A1 DE102011001711 A1 DE 102011001711A1
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- Germany
- Prior art keywords
- camshaft
- sliding sleeve
- cam
- sliding
- bearing
- Prior art date
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- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003860 storage 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
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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
- 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
-
- 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
- F01L1/08—Shape of cams
-
- 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
-
- 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
-
- 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 Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Die Erfindung betrifft einen Ventiltrieb für eine Brennkraftmaschine mit mehreren Zylindern gemäß dem Oberbegriff des Patentanspruchs 1 und ein Verfahren zum Fertigen eines solchen Ventiltriebs.The invention relates to a valve train for an internal combustion engine having a plurality of cylinders according to the preamble of
Bei modernen Brennkraftmaschinen werden zur Optimierung der Ladungsbewegung im Brennraum variable Ventiltriebe verwendet, mit denen bei den Gaswechselventilen der Brennkraftmaschine unterschiedliche Ventilhübe eingestellt werden können. Aus der
Aus der
Die Funktion der Zentrierung sowie die Funktion der Drehmomentübertragung werden demnach nach dem Stand der Technik von ein und derselben Innenverzahnung des Schiebenockens sowie Außenverzahnung der Nockenwelle übernommen. Diese Art der Lagerung, die gleichzeitig die Zentrierfunktion und die Drehmomentübertragungsfunktion übernimmt, ist sehr toleranzempfindlich und nur mit großem Aufwand fertigbar.The function of the centering and the function of the torque transmission are therefore assumed in the prior art of one and the same internal toothing of the sliding cam and external teeth of the camshaft. This type of storage, which simultaneously performs the centering function and the torque transfer function, is very sensitive to tolerances and manufacturable only with great effort.
Aufgabe der Erfindung ist es, einen Ventiltrieb gemäß dem Oberbegriff des Patentanspruchs 1 so zu verbessern, dass derselbe weniger toleranzempfindlich und mit geringerem Aufwand herstellbar ist. Weiterhin soll ein einfaches Verfahren zum Fertigen eines solchen Ventilstriebs geschaffen werden.The object of the invention is to improve a valve train according to the preamble of
Diese Aufgabe wird erfindungsgemäß durch einen Ventiltrieb mit den Merkmalen des Patentanspruchs 1 gelöst. Erfindungsgemäß ist der jeweilige Schiebenocken über eine auf der jeweiligen Nockenwelle axial verschiebbare Schiebehülse derart axial verschiebbar auf der jeweiligen Nockenwelle gelagert, dass die jeweilige Schiebehülse, die in Radialrichtung gesehen zwischen der jeweiligen Nockenwelle und dem jeweiligen Schiebenocken positioniert und die an einem in Axialrichtung gesehen mittleren Abschnitt des jeweiligen Schiebenockens fest mit demselben verbunden ist, der Drehmomentübertragung auf den jeweiligen Schiebenocken dient; wobei der jeweilige Schiebenocken über in Axialrichtung gesehen seitlich gegenüber der jeweiligen Schiebehülse vorstehende Abschnitte desselben an auf der Nockenwelle axial unverschiebbar befestigten Lagerhülsen der Nockenwellenlager gegenüber den Lagerhülsen, die der Zentrierung des jeweiligen Schiebenockens dienen, axial verschiebbar gelagert ist.This object is achieved by a valve train with the features of
Beim erfindungsgemäßen Ventiltrieb sind die Funktion der Zentrierung des jeweiligen Schiebenockens und die Funktion der Drehmomentübertragung auf den jeweiligen Schiebenocken nicht nur funktional und räumlich getrennt, vielmehr sind an diesen Funktion unterschiedliche Bauteilkombinationen beteiligt, nämlich an der Drehmomentübertragungsfunktion Nockenwelle, Schiebehülse und Schiebenocken und an der Zentrierungsfunktion Nockenwelle, Lagerhülsen und Schiebenocken. Dies erlaubt eine bedarfsindividuelle Auslegung der jeweiligen beteiligten Bauteile, eine Verringerung der Toleranzempfindlichkeit und eine einfache Herstellbarkeit des Ventiltriebs.When valve train according to the invention, the function of centering the respective sliding cam and the function of the torque transmission to the respective sliding cam are not only functionally and spatially separated, but different component combinations are involved in this function, namely the torque transfer function camshaft, sliding sleeve and sliding cam and the centering function camshaft , Bearing sleeves and sliding cams. This allows a customized design of the respective components involved, a reduction in tolerance sensitivity and ease of manufacture of the valve train.
Vorzugsweise weisen die Lagerhülsen und die Schiebehülsen an einem äußeren Umfang derselben jeweils mehrere Abflachungen auf, die am äußeren Umfang Tragschultern begrenzen, wobei die Abflachungen der Lagerhülsen gegenüber den Abflachungen der Schiebehülsen in Umfangsrichtung gesehen versetzt sind. Hierdurch wird eine einfache Fertigung bzw. Montage des Ventiltriebes unterstützt.Preferably, the bearing sleeves and the sliding sleeves each have a plurality of flats on an outer circumference thereof, which delimit support shoulders on the outer circumference, wherein the flattenings of the bearing sleeves are offset relative to the flattenings of the sliding sleeves in the circumferential direction. As a result, a simple production or assembly of the valve train is supported.
Das Verfahren zum Fertigen eines solchen Ventiltriebs ist in Patentanspruch 9 definiert und umfasst zumindest die folgenden Schritte: a) Bereitstellen mindestens einer eine Außenverzahnung aufweisenden Nockenwelle, b) Bereitstellen von eine Innenverzahnung aufweisenden Lagerhülsen für Nockenwellenlager und mindestens einer eine Innenverzahnung aufweisenden Schiebehülse; c) Bereitstellen mindestens eines Schiebenockens; d) Anordnen und Fixieren einer Lagerhülse auf der jeweiligen Nockenwellen, darauffolgendes Anordnen einer Schiebehülse auf der jeweiligen Nockenwelle und darauffolgendes Anordnen und Fixieren einer weiteren Lagerhülse auf der jeweiligen Nockenwellen, wobei dies solange wiederholt wird, bis alle Schiebehülsen und Lagerhülsen auf der jeweiligen Nockenwelle positioniert sind; e) Fertigmaßbearbeiten der auf der jeweiligen Nockenwelle angeordneten Lagerhülsen und der oder jeder auf jeweiligen Nockenwelle angeordneten Schiebehülse unter Eliminierung von Rundlaufabweichungen; f) Ausbildung von Riefen, insbesondere Längsriefen, vorzugsweise mittels Materialaufwurf, an einer äußeren Fläche der oder jeder Schiebehülse; g) Anordnen und Fixieren des jeweiligen Schiebenockens auf der jeweiligen Schiebehülse.The method for manufacturing such a valve train is defined in claim 9 and comprises at least the following steps: a) providing at least one camshaft having an external toothing, b) providing bearing shells having internal teeth for camshaft bearings and at least one sliding sleeve having an internal toothing; c) providing at least one shift cam; d) arranging and fixing a bearing sleeve on the respective camshaft, then placing a sliding sleeve on the respective camshaft and then arranging and fixing a further bearing sleeve on the respective camshafts, this being repeated until all sliding sleeves and Bearing sleeves are positioned on the respective camshaft; e) finish machining of the bearing sleeves arranged on the respective camshaft and of the or each sliding sleeve arranged on the respective camshaft with elimination of concentricity deviations; f) formation of grooves, in particular longitudinal grooves, preferably by means of material Aufwurf, on an outer surface of the or each sliding sleeve; g) arranging and fixing the respective sliding cam on the respective sliding sleeve.
Weitere Merkmale und Merkmalskombinationen ergeben sich aus der Beschreibung. Konkrete Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Further features and combinations of features emerge from the description. Concrete embodiments of the invention are shown in simplified form in the drawing and explained in more detail in the following description. Show it:
Die in
Pro Zylinder sind vorzugsweise zwei Einlassventile
Zur Lagerung der in
Gemäß
Durch die axiale Verschiebung des Schiebenockens
Zur Gewährleistung eines ordnungsgemäßen Funktion des Ventiltriebs muss der jeweilige Schiebenocken
Zur Bereitstellung der Drehmomentübertragungsfunktion von der Nockenwelle
Die Schiebehülse
Die Bereitstellung der Zentrierung des Schiebenockens
Die Zentrierung der Schiebenocken
Die Drehmomentübertragungsfunktion und die Zentrierungsfunktion für den jeweiligen Schiebenocken
Die Drehmomentübertragungsfunktion wird von der Nockenwelle
Die Zentrierungsfunktion wird von der Nockenwelle
Die Nockenwelle
Die Lagerhülsen
Die Lagerhülsen
So kann
Die Abflachungen
Ein Außenradius der Tragschultern
Der Schiebenocken
Wie bereits erwähnt, wirkt zur axialen Verschiebung des in
Die Arretiervorrichtung
Zur Fertigung des in
Sodann wird auf der Nockenwelle
Anschließend wird eine Schiebehülse
Anschließend wird eine weitere Lagerhülse
Dieses abwechselnde Positionieren von Lagerhülsen
Die Lagerhülsen
Die so mit den Lagerhülsen
Im Anschluss hieran werden im Bereich der Schiebehülsen
Sodann wird ein Schiebnocken
Da beim axialen Aufschieben des Schiebenockens
Da die Montage von einer axialen Seite aus erfolgt, muss lediglich an einer axialen Seite jedes Schiebenockens
Bei der Fertigmaßbearbeitung der auf der vormontierten Nockenwelle
Nach beendeter Montage bzw. Fertigung sind die Schiebenocken
Die Schiebenocken
Der erfindungsgemäße Ventiltrieb erlaubt eine genaue Zentrierung sowie Drehmomentübertragung auf die Schiebenocken
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Nockenwellecamshaft
- 22
- Nockenwellenlagercamshaft bearings
- 33
- Nockenwellenlagercamshaft bearings
- 44
- Einlassventilintake valve
- 55
- Schiebenockenpushers
- 66
- LagerringkörperBearing ring body
- 77
- LagedeckelLocation cover
- 88th
- Lagerhülsebearing sleeve
- 99
- Kulissenabschnittgate section
- 1010
- Nockenabschnittecam portions
- 1111
- Nockenbahncam track
- 1212
- Aktuatoractuator
- 1313
- Stiftpen
- 1414
- Nutgroove
- 1515
- Schiebehülsesliding sleeve
- 1616
- Abschnittsection
- 1717
- Abschnittsection
- 1818
- Außenverzahnungexternal teeth
- 1919
- Innenverzahnunginternal gearing
- 2020
- Abflachungflattening
- 2121
- Abflachungflattening
- 2222
- Tragschultersupporting shoulder
- 2323
- Tragschultersupporting shoulder
- 2424
- Arretiervorrichtunglocking device
- 2525
- Querbohrungcross hole
- 2626
- Federelementspring element
- 2727
- Rastkugeldetent ball
- 2828
- Rastvertiefunglatching depression
- 2929
- Nockenwellenkopfcamshafts head
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 19611641 C1 [0002, 0002] DE 19611641 C1 [0002, 0002]
- DE 102007027979 A1 [0003] DE 102007027979 A1 [0003]
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011001711.9A DE102011001711B4 (en) | 2011-03-31 | 2011-03-31 | Valve train for an internal combustion engine and method of manufacturing the same |
KR2020120002573U KR200467402Y1 (en) | 2011-03-31 | 2012-03-30 | Valve train for combustion engine and method for manufacturing thereof |
CN2012201309428U CN202810984U (en) | 2011-03-31 | 2012-03-30 | Air valve driving device of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011001711.9A DE102011001711B4 (en) | 2011-03-31 | 2011-03-31 | Valve train for an internal combustion engine and method of manufacturing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102011001711A1 true DE102011001711A1 (en) | 2012-10-04 |
DE102011001711B4 DE102011001711B4 (en) | 2023-06-07 |
Family
ID=46844653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011001711.9A Active DE102011001711B4 (en) | 2011-03-31 | 2011-03-31 | Valve train for an internal combustion engine and method of manufacturing the same |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR200467402Y1 (en) |
CN (1) | CN202810984U (en) |
DE (1) | DE102011001711B4 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140109851A1 (en) * | 2011-06-08 | 2014-04-24 | Schaeffler Technologies AG & Co. KG | Mounting of a camshaft |
DE102013103338A1 (en) * | 2013-04-03 | 2014-10-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Internal combustion engine |
DE102014116256A1 (en) * | 2014-11-07 | 2016-05-12 | Thyssenkrupp Presta Teccenter Ag | Camshaft with an axially guided sliding element |
DE102016208968A1 (en) * | 2016-05-24 | 2017-11-30 | Thyssenkrupp Ag | Sliding module of a camshaft |
US10006319B2 (en) | 2014-10-08 | 2018-06-26 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Cylinder head of an internal combustion engine with at least one camshaft |
US10161494B2 (en) | 2014-04-02 | 2018-12-25 | Seojincam Co., Ltd. | Manufacturing method of sliding cam assembly and assembling method of cam shaft assembly including sliding cam and fixed cam |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101438622B1 (en) * | 2012-12-28 | 2014-09-15 | 현대자동차 주식회사 | Variable valve lift device |
DE102014116252A1 (en) * | 2014-11-07 | 2016-05-12 | Thyssenkrupp Presta Teccenter Ag | Camshaft with an axially guided sliding element |
DE102014116479B4 (en) * | 2014-11-12 | 2022-02-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Arrangement of a switching camshaft and a drivable receptacle for this |
DE102014116480B4 (en) * | 2014-11-12 | 2022-01-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Storage of a switch camshaft |
JP6688132B2 (en) * | 2016-03-31 | 2020-04-28 | 本田技研工業株式会社 | Variable valve device |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE19519048A1 (en) * | 1995-05-24 | 1996-11-28 | Hermann Prof Dr Ing Krueger | Lift valve drive for internal combustion engines |
DE19611641C1 (en) | 1996-03-25 | 1997-06-05 | Porsche Ag | Valve operating cam drive for combustion engines |
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 |
DE102008024876A1 (en) * | 2008-05-23 | 2009-11-26 | Audi Ag | Valve drive for gas exchange valve of internal-combustion engine, has cam support including cam pairs or cam groups working together with gas exchange valve of cylinders, and pivot bearings surrounding front ends of cam supports |
DE102008035935A1 (en) * | 2008-07-31 | 2010-02-11 | Audi Ag | Toothed shaft connection and valve drive with toothed shaft connection between a camshaft and displaceable cam carriers |
DE102008064340A1 (en) * | 2008-12-20 | 2010-06-24 | Audi Ag | Valve train for gas exchange valves of internal-combustion engine, has base camshaft comprising cylindrical shaft sections between adjacent external gearing sections, and cam carriers radially guided on one of cylindrical shaft sections |
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 |
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DE19908286B4 (en) | 1999-02-26 | 2007-03-01 | Dr.Ing.H.C. F. Porsche Ag | Variable valve control for internal combustion engines |
DE102008005639B4 (en) * | 2008-01-23 | 2021-10-21 | Daimler Ag | Valvetrain device |
-
2011
- 2011-03-31 DE DE102011001711.9A patent/DE102011001711B4/en active Active
-
2012
- 2012-03-30 CN CN2012201309428U patent/CN202810984U/en not_active Expired - Fee Related
- 2012-03-30 KR KR2020120002573U patent/KR200467402Y1/en active IP Right Grant
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19519048A1 (en) * | 1995-05-24 | 1996-11-28 | Hermann Prof Dr Ing Krueger | Lift valve drive for internal combustion engines |
DE19611641C1 (en) | 1996-03-25 | 1997-06-05 | Porsche Ag | Valve operating cam drive for combustion engines |
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 |
DE102008024876A1 (en) * | 2008-05-23 | 2009-11-26 | Audi Ag | Valve drive for gas exchange valve of internal-combustion engine, has cam support including cam pairs or cam groups working together with gas exchange valve of cylinders, and pivot bearings surrounding front ends of cam supports |
DE102008035935A1 (en) * | 2008-07-31 | 2010-02-11 | Audi Ag | Toothed shaft connection and valve drive with toothed shaft connection between a camshaft and displaceable cam carriers |
DE102008064340A1 (en) * | 2008-12-20 | 2010-06-24 | Audi Ag | Valve train for gas exchange valves of internal-combustion engine, has base camshaft comprising cylindrical shaft sections between adjacent external gearing sections, and cam carriers radially guided on one of cylindrical shaft sections |
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 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140109851A1 (en) * | 2011-06-08 | 2014-04-24 | Schaeffler Technologies AG & Co. KG | Mounting of a camshaft |
US9121354B2 (en) * | 2011-06-08 | 2015-09-01 | Schaeffler Technologies AG & Co. KG | Mounting of a camshaft |
DE102013103338A1 (en) * | 2013-04-03 | 2014-10-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Internal combustion engine |
US10161494B2 (en) | 2014-04-02 | 2018-12-25 | Seojincam Co., Ltd. | Manufacturing method of sliding cam assembly and assembling method of cam shaft assembly including sliding cam and fixed cam |
US10006319B2 (en) | 2014-10-08 | 2018-06-26 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Cylinder head of an internal combustion engine with at least one camshaft |
DE102014116256A1 (en) * | 2014-11-07 | 2016-05-12 | Thyssenkrupp Presta Teccenter Ag | Camshaft with an axially guided sliding element |
WO2016071015A1 (en) * | 2014-11-07 | 2016-05-12 | Thyssenkrupp Presta Teccenter Ag | Camshaft comprising an axially guided sliding element |
US10054013B2 (en) | 2014-11-07 | 2018-08-21 | Thyssenkrupp Presta Teccenter Ag | Camshaft comprising an axially guided sliding element |
DE102014116256B4 (en) | 2014-11-07 | 2022-11-10 | Thyssenkrupp Presta Teccenter Ag | camshaft |
DE102016208968A1 (en) * | 2016-05-24 | 2017-11-30 | Thyssenkrupp Ag | Sliding module of a camshaft |
US10948066B2 (en) | 2016-05-24 | 2021-03-16 | Thyssenkrupp Presta Teccenter Ag | Sliding module of a camshaft |
Also Published As
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DE102011001711B4 (en) | 2023-06-07 |
KR20120007016U (en) | 2012-10-10 |
CN202810984U (en) | 2013-03-20 |
KR200467402Y1 (en) | 2013-06-14 |
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