DE102009009665A1 - Internal combustion engine with at least one camshaft - Google Patents
Internal combustion engine with at least one camshaft Download PDFInfo
- Publication number
- DE102009009665A1 DE102009009665A1 DE102009009665A DE102009009665A DE102009009665A1 DE 102009009665 A1 DE102009009665 A1 DE 102009009665A1 DE 102009009665 A DE102009009665 A DE 102009009665A DE 102009009665 A DE102009009665 A DE 102009009665A DE 102009009665 A1 DE102009009665 A1 DE 102009009665A1
- Authority
- DE
- Germany
- Prior art keywords
- bearings
- camshaft
- internal combustion
- combustion engine
- rolling 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- Withdrawn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
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/56—Systems consisting of a plurality of bearings with rolling friction in which the rolling bodies of one bearing differ in diameter from those of another
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/18—Camshafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49293—Camshaft making
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Die vorliegende Erfindung betrifft eine Brennkraftmaschine mit wenigstens einer Nockenwelle (1), die über mehrere Lager (2, 2'), insbesondere über Wälzlager, gelagert ist, wobei die Lager (2, 2') individuell ausgebildet und hinsichtlich ihrer Tragfähigkeit an die beim Betrieb der Brennkraftmaschine an der jeweiligen Lagerstelle tatsächlich auftretenden Belastungen angepasst sind. Hierdurch können insbesondere ein Gewicht und damit ein Kraftstoffverbrauch und CO-Emmisionen reduziert werden.The present invention relates to an internal combustion engine having at least one camshaft (1), which is mounted on a plurality of bearings (2, 2 '), in particular via roller bearings, wherein the bearings (2, 2') formed individually and in terms of their carrying capacity to the Operation of the internal combustion engine at the respective bearing point actually occurring loads are adjusted. As a result, in particular a weight and thus a fuel consumption and CO emissions can be reduced.
Description
Die vorliegende Erfindung betrifft eine Brennkraftmaschine mit wenigstens einer Nockenwelle.The The present invention relates to an internal combustion engine having at least a camshaft.
Nockenwellen sind in Brennkraftmaschinen Teil eines so genannten Ventiltriebes und werden üblicherweise dazu verwendet, Ein- und Auslassventile nach konstruktionsmäßigen Steuerzeiten zu öffnen bzw. zu schließen. Gelagert werden derartige Nockenwellen üblicherweise über so genannte Wälzlager, die aus zumindest einem Ring mit darin drehbar gelagerten Wälzkörpern bestehen. Um die Teilevielfalt dabei möglichst klein halten zu können, werden bisher an allen Lagerstellen der Nockenwelle üblicherweise identische Lager verwendet, was jedoch hinsichtlich des Gewichts und der Kosten von Nachteil ist, da in diesem Fall sämtliche Lager auf die maximal auftretenden Lasten ausgelegt werden müssen.camshafts are in internal combustion engines part of a so-called valve train and become common used for intake and exhaust valves according to design control times to open or close. Such camshafts are usually stored via so-called Roller bearing, consisting of at least one ring with rotatably mounted therein rolling elements. To the variety of parts as possible to be able to keep small, So far are usually at all bearings of the camshaft identical bearings used, however, in terms of weight and the cost of disadvantage, since in this case all Bearings must be designed for the maximum loads occurring.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine Brennkraftmaschine mit einer Nockenwelle eine verbesserte Ausführungsform anzugeben, die insbesondere kostengünstiger und mit geringerem Gewicht zu realisieren ist.The present invention employs dealing with the problem, for to provide an internal combustion engine with a camshaft an improved embodiment, the particular cost-effective and can be realized with less weight.
Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This Problem is inventively the subject of the independent Claim 1 solved. Advantageous embodiments are Subject of the dependent Claims.
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, zur Lagerung einer Nockenwelle in einer Brennkraftmaschine nicht wie bisher üblich an allen Lagerstellen identische Lager zu verwenden, sondern die einzelnen Lager individuell auszubilden und insbesondere hinsichtlich ihrer Tragfähigkeit an die an der jeweiligen Lagerstelle beim Betrieb der Brennkraftmaschine tatsächlich auftretenden Belastungen anzupassen. Beispielsweise sind die Belastungen für ein Lager an einem Kettenrad der Nockenwelle vergleichsweise hoch, während sie in einem Mittelbereich der Nockenwelle oftmals vergleichsweise nieder sind. Gemäß der Erfindung muss nun im Bereich des Kettenrads ein tragfähigeres bzw. belastbareres Lager eingesetzt werden, während in dem geringer belasteten Bereich ein vergleichsweise dazu leichteres und insbesondere kostengünstigeres Lager eingesetzt werden kann. Durch die individuelle Anpassung der einzelnen Lager lässt sich insbesondere ein Gesamtgewicht sämtlicher verwendeter Lager reduzieren, was sich günstig auf einen Kraftstoffverbrauch und damit auch auf eine CO2-Emission der Brennkraftmaschine auswirkt. Zugleich können die leichteren Lager kostengünstiger hergestellt werden, wodurch eine Reduzierung der Fertigungskosten erreicht werden kann.The present invention is based on the general idea not to use identical bearings for storage of a camshaft in an internal combustion engine as previously customary at all bearings, but to design the individual bearings individually and in particular in terms of their carrying capacity to the at the respective bearing point during operation of the internal combustion engine actually adjust occurring loads. For example, the loads for a bearing on a sprocket of the camshaft are comparatively high, while they are often comparatively low in a central region of the camshaft. According to the invention, a more stable or load bearing must now be used in the area of the sprocket, while in the less loaded area a comparatively easier and in particular more cost-effective storage can be used. Due to the individual adaptation of the individual bearings, in particular a total weight of all used bearings can be reduced, which has a favorable effect on fuel consumption and thus also on a CO 2 emission of the internal combustion engine. At the same time, the lighter bearings can be produced more cheaply, whereby a reduction in manufacturing costs can be achieved.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung, sind an der Nockenwelle und an einem jeweiligen Lager jeweils eine Farbmarkierung angebracht, die eine Zuordnung des jeweiligen Lagers zu einem Einbauort an der Nockenwelle erlaubt bzw. vereinfacht. Da im Unterschied zu dem bisher verwendeten und identisch aufgebauten Lager nunmehr für einen störungsfreien Betrieb der Nockenwelle ein richtiges, insbesondere lagerichtiges, Einbauen der jeweiligen Lager unbedingt erforderlich ist, muss in der Fertigung zuverlässig ausgeschlossen werden, dass bspw. ein leichtes Lager im Bereich einer hohen Belastung, bspw. im Bereich des Kettenrads, eingebaut wird und dort aufgrund der hohen Belastungen vergleichsweise schnell verschleißt und dementsprechend schnell ausgetauscht werden muss. Die Farbmarkierungen an der Nockenwelle und an den zugehörigen Lagern erleichtern dabei einem Montagearbeiter das richtige Einsetzen bzw. die richtige Anordnung des jeweiligen Lagers an der Nockenwelle, so dass dieser bspw. lediglich ein rot markiertes Lager an einer ebenfalls rot markierten Stelle der Nockenwelle einbauen muss. Durch eine derartige Farbmarkierung lässt sich eine Fehlerrate beim Einbau der erfindungsgemäßen Lager vorzugsweise auf Null reduzieren.at An advantageous development of the solution according to the invention, are on the camshaft and on each bearing a color marking attached, an assignment of the respective warehouse to a place of installation allowed or simplified on the camshaft. As opposed to the previously used and identically constructed bearing now for a trouble-free Operation of the camshaft a proper, especially correct position, installation The respective bearing is absolutely necessary, must in the production reliable be ruled out that, for example, a light camp in the area of high load, eg. In the range of the sprocket, is installed and there due to the high loads comparatively fast wear and must be replaced accordingly fast. The color markings on the camshaft and on the associated bearings facilitate an assembly worker the correct insertion or the right arrangement the respective bearing on the camshaft, so that this example. Only a red marked bearing at a likewise red marked place of the Install camshaft. By such a color marking can be an error rate during installation of the bearing according to the invention preferably Reduce zero.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Further important features and advantages of the invention will become apparent from the Dependent claims, from the drawings and from the associated description of the figures the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It it is understood that the above and the following yet to be explained features not only in the specified combination, but also in other combinations or alone, without to leave the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.preferred embodiments The invention are illustrated in the drawings and in the following description explains where like reference numerals refer to the same or similar or functionally identical components relate.
Dabei zeigen, jeweils schematisch,there show, in each case schematically,
Entsprechend
der
Die
einzelnen Lager
Da
bisher identische Lager an der Nockenwelle
Mit
dem erfindungsgemäß individuell
und hinsichtlich ihrer Tragfähigkeit
an die Belastungen der Nockenwelle
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009009665A DE102009009665A1 (en) | 2009-02-19 | 2009-02-19 | Internal combustion engine with at least one camshaft |
PCT/EP2010/051610 WO2010094598A1 (en) | 2009-02-19 | 2010-02-10 | Internal combustion engine comprising at least one camshaft |
US13/202,237 US20120012075A1 (en) | 2009-02-19 | 2010-02-10 | Internal combustion engine comprising at least one camshaft |
JP2011550518A JP2012518121A (en) | 2009-02-19 | 2010-02-10 | Internal combustion engine having at least one camshaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009009665A DE102009009665A1 (en) | 2009-02-19 | 2009-02-19 | Internal combustion engine with at least one camshaft |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009009665A1 true DE102009009665A1 (en) | 2010-08-26 |
Family
ID=42126086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009009665A Withdrawn DE102009009665A1 (en) | 2009-02-19 | 2009-02-19 | Internal combustion engine with at least one camshaft |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120012075A1 (en) |
JP (1) | JP2012518121A (en) |
DE (1) | DE102009009665A1 (en) |
WO (1) | WO2010094598A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014082626A1 (en) * | 2012-11-29 | 2014-06-05 | Schaeffler Technologies AG & Co. KG | Camshaft adjusting device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012217456A1 (en) * | 2012-09-26 | 2014-03-27 | Mahle International Gmbh | Camshaft for an internal combustion engine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19807675A1 (en) * | 1998-02-25 | 1999-08-26 | Schaeffler Waelzlager Ohg | Cylinder head for IC engine with camshaft |
DE102006036851A1 (en) * | 2005-08-05 | 2007-06-28 | Neumayer Tekfor Holding Gmbh | Cam shaft for internal combustion engine, has base bodies separately manufactured and axially engaged on shaft through sliding, and fixation formed by using ball bearing and provided on bodies |
DE102007024092A1 (en) * | 2007-05-22 | 2008-11-27 | Mahle International Gmbh | camshaft |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR887207A (en) * | 1941-07-24 | 1943-11-08 | Gnome Et Rhone Moteurs | Improvements to multi-bend crankshafts for engines |
US3567877A (en) * | 1969-07-03 | 1971-03-02 | Herbert Y Awaya | Improved adjustment means for distributor contacts and bearings |
US4388897A (en) * | 1980-09-22 | 1983-06-21 | Bernard Rosa | Variable camshaft assembly |
JPS59124468A (en) * | 1982-12-28 | 1984-07-18 | Nissan Motor Co Ltd | Work instruction method in car assembling process |
JP3058078B2 (en) * | 1996-02-22 | 2000-07-04 | トヨタ自動車株式会社 | Internal combustion engine with variable valve timing mechanism |
US5934234A (en) * | 1996-10-24 | 1999-08-10 | Honda Giken Kogyo Kabushiki Kaisha | Assembly structure of a shaft having a fixed sprocket |
JP3811232B2 (en) * | 1996-10-23 | 2006-08-16 | 本田技研工業株式会社 | Assembly structure of shaft with sprocket |
JP2001151234A (en) * | 1999-11-29 | 2001-06-05 | Ricoh Co Ltd | Article transporting and keeping apparatus |
JP4002108B2 (en) * | 2002-01-18 | 2007-10-31 | ヤマハ発動機株式会社 | Rolling bearings and crankshaft bearings |
JP2006226183A (en) * | 2005-02-17 | 2006-08-31 | Jtekt Corp | Camshaft device and its assembling method |
WO2006088149A1 (en) * | 2005-02-17 | 2006-08-24 | Jtekt Corporation | Camshaft device and method of assembling camshaft device |
KR20070116834A (en) * | 2005-03-11 | 2007-12-11 | 가부시키가이샤 제이텍트 | Rolling bearing, camshaft device, and camshaft supporting device |
JP4400484B2 (en) * | 2005-03-11 | 2010-01-20 | 株式会社ジェイテクト | Camshaft support device |
JP4382010B2 (en) * | 2005-06-23 | 2009-12-09 | 本田技研工業株式会社 | Engine valve gear |
BRPI0614373B1 (en) * | 2005-08-05 | 2019-02-26 | Neumayer Tekfor Engineering Gmbh | SHAFT WITH AT LEAST ONE FUNCTIONAL BODY |
JP2007192103A (en) * | 2006-01-19 | 2007-08-02 | Toyota Motor Corp | Camshaft support structure for internal combustion engine |
US8418670B2 (en) * | 2006-09-04 | 2013-04-16 | Ntn Corporation | Roller bearing, cam shaft support structure, internal combustion engine and incorporation method of roller bearing |
JP5112830B2 (en) * | 2006-12-28 | 2013-01-09 | Ntn株式会社 | Tapered roller bearings |
JP2009030468A (en) * | 2007-07-25 | 2009-02-12 | Jtekt Corp | Camshaft unit |
US20090133528A1 (en) * | 2007-11-27 | 2009-05-28 | Jtekt Corporation | Shaft apparatus with bearing |
JP5145953B2 (en) * | 2008-01-10 | 2013-02-20 | 株式会社ジェイテクト | Camshaft device |
US8727105B2 (en) * | 2011-05-13 | 2014-05-20 | Sst Bearing Corporation | Roller inserts for conveyor rollers and roller assemblies including the same |
US9249692B2 (en) * | 2011-07-21 | 2016-02-02 | Mahle International Gmbh | Camshaft and associate manufacturing method |
DE102011081486A1 (en) * | 2011-08-24 | 2013-02-28 | Mahle International Gmbh | crankcase |
-
2009
- 2009-02-19 DE DE102009009665A patent/DE102009009665A1/en not_active Withdrawn
-
2010
- 2010-02-10 US US13/202,237 patent/US20120012075A1/en not_active Abandoned
- 2010-02-10 JP JP2011550518A patent/JP2012518121A/en active Pending
- 2010-02-10 WO PCT/EP2010/051610 patent/WO2010094598A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19807675A1 (en) * | 1998-02-25 | 1999-08-26 | Schaeffler Waelzlager Ohg | Cylinder head for IC engine with camshaft |
DE102006036851A1 (en) * | 2005-08-05 | 2007-06-28 | Neumayer Tekfor Holding Gmbh | Cam shaft for internal combustion engine, has base bodies separately manufactured and axially engaged on shaft through sliding, and fixation formed by using ball bearing and provided on bodies |
DE102007024092A1 (en) * | 2007-05-22 | 2008-11-27 | Mahle International Gmbh | camshaft |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014082626A1 (en) * | 2012-11-29 | 2014-06-05 | Schaeffler Technologies AG & Co. KG | Camshaft adjusting device |
US9598984B2 (en) | 2012-11-29 | 2017-03-21 | Schaeffler Technologies AG & Co. KG | Camshaft adjusting device |
Also Published As
Publication number | Publication date |
---|---|
WO2010094598A1 (en) | 2010-08-26 |
JP2012518121A (en) | 2012-08-09 |
US20120012075A1 (en) | 2012-01-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102011054218B4 (en) | Internal combustion engine and valve train for an internal combustion engine | |
DE102016100900B4 (en) | Adjusting device for an exhaust gas turbocharger and exhaust gas turbocharger | |
DE102012103581A1 (en) | Camshaft with oilable, adjustable cam | |
DE112012001087T5 (en) | Bearing housing of an exhaust gas turbocharger | |
DE102010019130A1 (en) | cylinder head | |
DE102011079742B4 (en) | Control device, in particular for exhaust gas recirculation in internal combustion engines | |
DE102009009665A1 (en) | Internal combustion engine with at least one camshaft | |
DE102014225054A1 (en) | Adjustable camshaft | |
DE102007014544A1 (en) | Internal-combustion engine, has stop element forming axial-bearing that cooperates for axial storage with bearing frame that includes free space for bearing shape of cam, where element is formed by cam of cam shaft | |
DE102011000510B4 (en) | Sliding cam system with linear bearing | |
DE102011077563B4 (en) | internal combustion engine | |
DE102016201514A1 (en) | Variable valve train for a reciprocating internal combustion engine | |
DE102010019129A1 (en) | Bearing block of a camshaft | |
DE102014218872A1 (en) | Arrangement of a rocker arm for the valve train of an internal combustion engine | |
DE112013005497T5 (en) | turbocharger | |
DE102008017023A1 (en) | Component for an internal combustion engine operated with alcohol fuel | |
DE102007047582A1 (en) | Device for controlling the residual gas content of cylinders of an internal combustion engine | |
DE102017210661A1 (en) | Valve train device for a multi-cylinder internal combustion engine | |
DE102012206178A1 (en) | Rocker arm for use as cam follower for controlling gas valve of combustion engine of motor car, has cam roller arranged between punched part and U-shaped part leg by insertion of bolt in holes respectively formed in punched part and in leg | |
DE102015218775A1 (en) | Internal combustion engine | |
DE102007054977A1 (en) | Valve drive device | |
DE195730C (en) | ||
DE102012109202A1 (en) | Valve train for combustion engine, has ball thrust piece whose spherical end is co-acted with locking adjustable socket over locking lath that is arranged axially parallel to camshaft, where socket is slidably connected to sliding piece | |
DE102018112815A1 (en) | Variable valve train of a reciprocating internal combustion engine | |
DE102016206255A1 (en) | Hydraulic lash adjuster for a valve control of an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |