EP1108859B1 - Bearing arrangement for a cam shaft - Google Patents
Bearing arrangement for a cam shaft Download PDFInfo
- Publication number
- EP1108859B1 EP1108859B1 EP00126265A EP00126265A EP1108859B1 EP 1108859 B1 EP1108859 B1 EP 1108859B1 EP 00126265 A EP00126265 A EP 00126265A EP 00126265 A EP00126265 A EP 00126265A EP 1108859 B1 EP1108859 B1 EP 1108859B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- cylinder head
- camshaft
- carrier
- support
- 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.)
- Expired - Lifetime
Links
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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
-
- 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
Definitions
- the invention relates to the mounting of at least one camshaft in the cylinder head of a valve-controlled reciprocating internal combustion engine, according to the preamble of claim 1.
- valve control particularly in internal combustion engines with two overhead camshafts per cylinder head and possibly narrow valve angles, the arrangement of the valve control, the camshafts and their storage and lubricating oil supply, and the cylinder head bolts and their accessibility during assembly is problematic.
- the object of the invention is to propose a storage of the generic type, which is structurally simple and manufacturing technology particularly favorable.
- the invention starting from a conventional camshaft bearing with bearing heads integrated in the cylinder head and supports mounted thereon, instead of arranging the complete camshaft bearing on the carrier instead of at least one bearing head on the cylinder head side.
- This opens up the possibility for the designer to have the bearing seat omitted in a particularly inaccessible or exposed area in the cylinder head and to be replaced by either one-piece design of the camshaft bearing on the carrier or by an additional bearing cap in a split design. If then the cylinder head is first mounted without the carrier on the internal combustion engine, the relevant point is z. B. for the insertion and tightening of a cylinder head bolt freely accessible and is covered in the later assembly of the carrier with the camshaft of the corresponding camshaft bearing.
- storage chairs for the camshaft bearings can be integrated in the end faces of the cylinder head in a manner known per se, while the intermediate cylinder-head-side bearing seats are dispensed with and provided on the carrier.
- a central camshaft bearing of this lying between end faces camshaft bearing may also be performed with a bearing block on the cylinder head.
- the carrier If used in split camshaft bearings on the carrier single or a unit bearing cap, so they can be bolted either from above or from below to the carrier. Possibly. can also be provided between the end walls of the cylinder head, the support stiffening mounting arrangements may be provided, via which the carrier is additionally bolted to the cylinder head.
- the carrier is integrated in a structurally particularly favorable manner in the valve cover or in one piece with it, additional fastening arrangements can be dispensed with in the case of a correspondingly rigid design of this valve cover.
- the schematic drawing shows a longitudinal section through a cylinder head of a reciprocating internal combustion engine, not shown with the bearing of a camshaft with a plurality of camshaft bearings, which are partially or completely formed in a carrier and valve cover.
- cylinder head 10 for a three-cylinder (or V 6-) reciprocating internal combustion engine is connected by means of a plurality of cylinder head bolts 12 with a cylinder crankcase, not shown, of the internal combustion engine.
- the cylinder head 10 has upwardly projecting end walls 14, 16 which, with side walls 18 (only one side wall 18 can be seen), enclose an upwardly open valve space.
- the end walls 14,16 and the side walls 18 terminate to form a flange, not shown, in a bearing pitch plane 20 for two camshafts 22 (only one camshaft 22 can be seen).
- connection flange of the cylinder head On the connecting flange of the cylinder head (bearing pitch level 20) is mounted with a corresponding connection flange of the carrier 24, which also end walls 26,28 and side walls 30 (it is also only one side wall 30 seen) has.
- the top wall 32 of the carrier 24 is formed closed, so that the carrier 24 at the same time forms the valve cover final valve cover.
- the valve cover or support 24 is screwed by means not shown screws circumferentially distributed penetrate the connecting flange, not shown, with the end walls 14,16 and side walls 18 of the cylinder head 10.
- the illustrated four camshaft bearings or bearing bores 34, 36, 38, 40, whose center axis lies in the bearing graduation plane 20, are formed as follows:
- the outer bearing 34,40 by integrated into the end walls 14,16 of the cylinder head 10 bearing blocks 42,44 and the carrier side by in the end walls 26,28 integrated bearing halves 46,48; the middle two camshaft bearing 36,38 by integrally formed on the carrier 24 bearing halves 50,52, to which by means of screws 54 bearing cap 56,58 are screwed.
- the bearing caps 56,58 are - as can be readily seen on the drawing - screwed from below and are thus positioned adjacent the valve chamber of the cylinder head 10.
- the second, not apparent camshaft 22 is equally located lying on the drawing plane behind it, where appropriate, the bearing cap 56,58 can be made double and both camshafts 22 store accordingly.
- the carrier 24 is not designed as a valve cover and is therefore designed to be less rigid, then possibly as shown in dashed lines on the bottom 60 of the cylinder head 10, a projecting up to the dividing plane 20 wall or a foot 62 may be cast in Connection with a corresponding wall or a corresponding foot 64 on the carrier 24 forms a fastening arrangement which forms by means of a screwed into the foot 62 from the top of the carrier 24 from screw 66 a central support 24 lying stiffening with the cylinder head 10.
- the bearing caps 56, 58 are firmly screwed to the carrier 24 and then the carrier 24 is fastened to the cylinder head 10.
- the bearing bores 34, 36, 38, 40 for the camshafts 22 are bored.
- the carrier 24 is removed again from the cylinder head and then the camshafts 22 can be mounted.
- the cylinder head 10 may be fixed by mounting the gas exchange valves and the corresponding valve operating elements to the cylinder crankcase of the internal combustion engine by means of the cylinder head bolts 12, wherein due to the absence of the camshaft 22 u. a. the cylinder head bolts 12 are accessible without hindrance.
- the carrier 24 is then placed with the pre-assembled camshaft 22 on the said pad in the parting plane 20 and fastened by means of screws, not shown.
- the mounting surfaces are of course also designed as sealing surfaces; remote can be provided at the points at which the camshaft 22, the end walls 14,26 and 16,28 penetrate, in a known manner shaft seals.
- lubricating oil at least within the end walls 14,16 lying camshaft bearing 36,38 must be carried out by the carrier 24, wherein corresponding lubricating oil channels pour and / or are to be drilled.
- the lubricating oil may, for example, be conducted from the camshaft bearings 34,40 via channels in the top wall 32 to the inner camshaft bearings 36,38.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Die Erfindung betrifft die Lagerung zumindest einer Nockenwelle im Zylinderkopf einer ventilgesteuerten Hubkolben-Brennkraftmaschine, gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to the mounting of at least one camshaft in the cylinder head of a valve-controlled reciprocating internal combustion engine, according to the preamble of claim 1.
Insbesondere bei Brennkraftmaschinen mit zwei obenliegenden Nockenwellen je Zylinderkopf und ggf. engen Ventilwinkeln ist die Anordnung der Ventilsteuerung, der Nockenwellen und deren Lagerung und Schmierölversorgung, sowie der Zylinderkopfschrauben und deren Zugänglichkeit bei der Montage problematisch.Particularly in internal combustion engines with two overhead camshafts per cylinder head and possibly narrow valve angles, the arrangement of the valve control, the camshafts and their storage and lubricating oil supply, and the cylinder head bolts and their accessibility during assembly is problematic.
Deshalb wurde schon vorgeschlagen (z. B. DE 39 43 728 C2), die Nockenwellenlagerung und Schmierölversorgung in einem zweiteiligen Träger anzuordnen, in dem die Lagerstühle und Lagerdeckel der Nockenwellenlager integriert sind. Der Träger wird mit dem Zylinderkopf verschraubt Der Zylinderkopf weist eine Anschlussebene auf, auf die der Träger und ein separater Ventildeckel aufgesetzt sind, sowie eine innerhalb des Ventildeckels liegende Lagerteilungsebene des Trägers.It has therefore already been proposed (for example DE 39 43 728 C2) to arrange the camshaft bearing and lubricating oil supply in a two-part carrier in which the bearing seats and bearing caps of the camshaft bearings are integrated. The carrier is screwed to the cylinder head. The cylinder head has a connection plane, on which the carrier and a separate valve cover are placed, and a bearing pitch plane of the carrier located inside the valve cover.
Aus US-A-3 477 417 und DE 43 23 073 sind eine ähnliche Konstruktionen bekannt, bei der der besagte Träger bzw. dessen Oberteil zugleich als Ventildeckel ausgebildet ist. Auch hier sind eine Anschlussebene und eine Lagerteilungsebene zu bearbeiten und entsprechend abzudichten.From US-A-3 477 417 and DE 43 23 073 a similar constructions are known in which the said carrier or its upper part is at the same time designed as a valve cover. Again, a connection level and a bearing pitch level to edit and seal accordingly.
Aufgabe der Erfindung ist es, eine Lagerung der gattungsgemäßen Art vorzuschlagen, die baulich einfach und herstellungstechnisch besonders günstig ist.The object of the invention is to propose a storage of the generic type, which is structurally simple and manufacturing technology particularly favorable.
Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den weiteren Patentansprüchen angeführt.This object is achieved with the characterizing features of claim 1. Advantageous developments of the invention are set forth in the further claims.
Erfindungsgemäß wird vorgeschlagen, ausgehend von einer herkömmlichen Nockenwellenlagerung mit in dem Zylinderkopf integrierten Lagerstühlen und darauf aufgesetztem Träger anstelle zumindest eines zylinderkopfseitigen Lagerstuhles das vollständige Nockenwellenlager am Träger anzuordnen. Dies eröffnet für den Konstrukteur die Möglichkeit, an besonders unzugänglicher bzw. exponierter Stelle im Zylinderkopf den Lagerstuhl entfallen zu lassen und entweder durch einteilige Ausbildung des Nockenwellenlagers am Träger oder durch einen zusätzlichen Lagerdeckel bei einer geteilten Ausführung zu ersetzen. Wird dann der Zylinderkopf zunächst ohne dem Träger an der Brennkraftmaschine montiert, so ist die betreffende Stelle z. B. für das Einsetzen und Anziehen einer Zylinderkopfschraube frei zugänglich und wird bei der späteren Montage des Trägers mit der Nockenwelle von dem entsprechenden Nockenwellenlager überdeckt.According to the invention, starting from a conventional camshaft bearing with bearing heads integrated in the cylinder head and supports mounted thereon, instead of arranging the complete camshaft bearing on the carrier instead of at least one bearing head on the cylinder head side. This opens up the possibility for the designer to have the bearing seat omitted in a particularly inaccessible or exposed area in the cylinder head and to be replaced by either one-piece design of the camshaft bearing on the carrier or by an additional bearing cap in a split design. If then the cylinder head is first mounted without the carrier on the internal combustion engine, the relevant point is z. B. for the insertion and tightening of a cylinder head bolt freely accessible and is covered in the later assembly of the carrier with the camshaft of the corresponding camshaft bearing.
Bevorzugt können in die Stimseiten des Zylinderkopfes in an sich bekannter Weise Lagerstühle für die Nockenwellenlager integriert sein, während die dazwischenliegenden zylinderkopfseitigen Lagerstühle entfallen und am Träger vorgesehen werden. Aus Festigkeitsgründen kann ggf. ein mittleres Nockenwellenlager dieser zwischen Stirnseiten liegenden Nockenwellenlager ebenfalls mit einem Lagerstuhl am Zylinderkopf ausgeführt sein. Dadurch wird sowohl der Zylinderkopf an sich als auch dessen Montage merklich vereinfacht.Preferably, storage chairs for the camshaft bearings can be integrated in the end faces of the cylinder head in a manner known per se, while the intermediate cylinder-head-side bearing seats are dispensed with and provided on the carrier. For reasons of strength, if necessary, a central camshaft bearing of this lying between end faces camshaft bearing may also be performed with a bearing block on the cylinder head. As a result, both the cylinder head itself and its installation is significantly simplified.
Sofern bei geteilten Nockenwellenlagern am Träger einzelne oder zu einer Baueinheit verbundene Lagerdeckel verwendet werden, so können diese entweder von oben oder von unten mit dem Träger verschraubt werden. Ggf. können auch zwischen den Stirnwänden des Zylinderkopfes liegende, den Träger aussteifende Befestigungsanordnungen vorgesehen sein, über die der Träger zusätzlich mit dem Zylinderkopf verschraubt wird.If used in split camshaft bearings on the carrier single or a unit bearing cap, so they can be bolted either from above or from below to the carrier. Possibly. can also be provided between the end walls of the cylinder head, the support stiffening mounting arrangements may be provided, via which the carrier is additionally bolted to the cylinder head.
Ist der Träger in baulich besonders günstiger Weise in den Ventildeckel integriert bzw. mit diesem einstückig, so können bei einer entsprechend steifen Gestaltung dieses Ventildeckels zusätzliche Befestigungsanordnungen entfallen.If the carrier is integrated in a structurally particularly favorable manner in the valve cover or in one piece with it, additional fastening arrangements can be dispensed with in the case of a correspondingly rigid design of this valve cover.
Ein Ausführungsbeispiel der Erfindung ist im folgenden mit weiteren Einzelheiten näher erläutert. Die schematische Zeichnung zeigt einen Längsschnitt durch einen Zylinderkopf einer nicht näher dargestellten Hubkolben-Brennkraftmaschine mit der Lagerung einer Nockenwelle mit mehreren Nockenwellenlagern, die teilweise oder vollständig in einem Träger und Ventildeckel ausgebildet sind.An embodiment of the invention is explained in more detail below with further details. The schematic drawing shows a longitudinal section through a cylinder head of a reciprocating internal combustion engine, not shown with the bearing of a camshaft with a plurality of camshaft bearings, which are partially or completely formed in a carrier and valve cover.
Der abschnittsweise in einem Längsschnitt dargestellte Zylinderkopf 10 für eine dreizylindrige (oder V 6-) Hubkolben-Brennkraftmaschine ist mittels mehrerer Zylinderkopfschrauben 12 mit einem nicht dargestellten Zylinderkurbelgehäuse der Brennkraftmaschine verbunden.The sectionally in a longitudinal section shown
Der Zylinderkopf 10 weist nach oben ragende Stirnwände 14,16 auf, die mit Seitenwänden 18 (es ist nur eine Seitenwand 18 ersichtlich) einen nach oben offenen Ventilraum einschließen.The
Die Stirnwände 14,16 und die Seitenwände 18 enden unter Bildung eines nicht dargestellten Anschlussflansches in einer Lagerteilungsebene 20 für zwei Nockenwellen 22 (es ist nur eine Nockenwelle 22 ersichtlich).The
Auf den Anschlussflansch des Zylinderkopfes (Lagerteilungsebene 20) ist mit einem korrespondierenden Anschlussflansch der Träger 24 aufgesetzt, der ebenfalls Stirnwände 26,28 und Seitenwände 30 (es ist auch nur eine Seitenwand 30 ersichtlich) besitzt. Die Deckwand 32 des Trägers 24 ist geschlossen ausgebildet, so dass der Träger 24 zugleich den den Ventilraum abschließenden Ventildeckel bildet. Der Ventildeckel bzw. Träger 24 ist mittels nicht dargestellter Schrauben, die umfangsmäßig verteilt den nicht dargestellten Anschlussflansch durchdringen, mit den Stirnwänden 14,16 und Seitenwänden 18 des Zylinderkopfes 10 verschraubt.On the connecting flange of the cylinder head (bearing pitch level 20) is mounted with a corresponding connection flange of the
Die dargestellten vier Nockenwellenlager bzw. Lagerbohrungen 34,36,38,40, deren Mittelachse in der Lagerteilungsebene 20 liegt, sind wie folgt gebildet:The illustrated four camshaft bearings or
Die äußeren Lager 34,40 durch in die Stirnwände 14,16 des Zylinderkopfes 10 integrierte Lagerstühle 42,44 und trägerseitig durch in die Stirnwände 26,28 integrierte Lagerhälften 46,48; die mittleren beiden Nockenwellenlager 36,38 durch an den Träger 24 angeformte Lagerhälften 50,52, an die mittels Schrauben 54 Lagerdeckel 56,58 angeschraubt sind.The
Die Lagerdeckel 56,58 sind - wie auf der Zeichnung ohne weiteres ersichtlich ist - von unten verschraubt und sind somit benachbart dem Ventilraum des Zylinderkopfes 10 positioniert.The
Die zweite, nicht ersichtliche Nockenwelle 22 ist gleichermaßen auf der Zeichnungsebene dahinter liegend angeordnet, wobei ggf. die Lagerdeckel 56,58 doppelt ausgeführt sein können und beide Nockenwellen 22 entsprechend lagern.The second, not
Wenn der Träger 24 nicht als Ventildeckel ausgebildet ist und dementsprechend weniger steif konstruiert ist, dann kann ggf. wie in gestrichelten Linien dargestellt an den Boden 60 des Zylinderkopfes 10 eine nach oben bis zur Teilungsebene 20 ragende Wand oder ein Fuß 62 angegossen sein, der in Verbindung mit einer korrespondierenden Wand oder einem korrespondierenden Fuß 64 am Träger 24 eine Befestigungsanordnung bildet, die mittels einer in den Fuß 62 von der Oberseite des Trägers 24 aus eingeschraubten Schraube 66 eine zentral des Trägers 24 liegende Aussteifung mit dem Zylinderkopf 10 bildet.If the
Bei der spanenden Fertigung des Zylinderkopfes 10 mit dem Träger 24 werden die Lagerdeckel 56,58 mit dem Träger 24 fest verschraubt und anschließend der Träger 24 am Zylinderkopf 10 befestigt. In diesem Zustand werden die Lagerbohrungen 34,36,38,40 für die Nockenwellen 22 gebohrt. Anschließend wird der Träger 24 wieder vom Zylinderkopf entfernt und es können sodann die Nockenwellen 22 montiert werden. Ferner kann der Zylinderkopf 10 nach Montage der nicht dargestellten Gaswechselventile und der entsprechenden Ventilbetätigungselemente an den Zylinderkurbelgehäuse der Brennkraftmaschine mittels der Zylinderkopfschrauben 12 befestigt werden, wobei aufgrund des Fehlens der Nockenwellen 22 u. a. die Zylinderkopfschrauben 12 unbehindert zugänglich sind.During machining of the
Nach der Montage des Zylinderkopfes 10 wird dann der Träger 24 mit den vormontierten Nockenwellen 22 auf die besagte Anschlussfläche in der Teilungsebene 20 aufgesetzt und mittels der nicht dargestellten Schrauben befestigt. Die Befestigungsflächen sind dabei selbstverständlich auch als Dichtflächen ausgeführt; fern können an den Stellen, an den die Nockenwellen 22 die Stirnwände 14,26 bzw. 16,28 durchdringen, in bekannter Weise Wellendichtringe vorgesehen sein.After mounting the
Es versteht sich, dass die Schmierölversorgung zumindest der innerhalb der Stirnwände 14,16 liegenden Nockenwellenlager 36,38 durch den Träger 24 erfolgen muss, wobei entsprechende Schmierölkanäle einzugießen und/oder einzubohren sind. Das Schmieröl kann beispielsweise von den Nockenwellenlagern 34,40 über Kanäle in der Deckwand 32 zu den innenliegenden Nockenwellenlagern 36,38 geleitet werden.It is understood that the supply of lubricating oil at least within the
Claims (7)
- Bearing application of at least one camshaft (22) in the cylinder head of a valve controlled reciprocating piston internal combustion engine, with several camshaft bearings (34, 40) arranged in one bearing division plane (20), with bearing seats (42, 44) on the cylinder head side and bearing halves (46, 48) provided in a detachable support (24) and corresponding to the bearing seats (42, 44), characterised in that at least one camshaft bearing (36, 38) is arranged fully on the support (24).
- Bearing application according to Claim 1, characterised in that the camshaft bearing (36, 38) is also split in the bearing division plane (20) and constructed with a separate plummer block cover (56, 58).
- Bearing application according to Claims 1 and 2, characterised in that the plummer block cover (56, 58) is secured to the support (24) with bolts (54) positioned on the cylinder head side.
- Bearing application according to one or more of Claims 1 to 3, characterised in that bearing seats (42, 44) are integrated on the front walls (14, 16) of the cylinder head (10).
- Bearing application according to Claim 4, characterised in that all further camshaft bearings (36, 38) located between the front walls (14, 16) are arranged fully on the support (24).
- Bearing application according to one or more of Claims 1 to 5, characterised in that the support (24) is connected to the cylinder head (10) by at least one fastening device (62, 64, 66) located between the front camshaft bearings (34, 40).
- Bearing application according to one or more of Claims 1 to 6, characterised in that the support (24) is integrated in a valve cover sealing the cylinder head (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19959989A DE19959989A1 (en) | 1999-12-13 | 1999-12-13 | Bearing at least one camshaft |
| DE19959989 | 1999-12-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1108859A2 EP1108859A2 (en) | 2001-06-20 |
| EP1108859A3 EP1108859A3 (en) | 2002-06-12 |
| EP1108859B1 true EP1108859B1 (en) | 2006-04-12 |
Family
ID=7932429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00126265A Expired - Lifetime EP1108859B1 (en) | 1999-12-13 | 2000-12-01 | Bearing arrangement for a cam shaft |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1108859B1 (en) |
| DE (2) | DE19959989A1 (en) |
| ES (1) | ES2257259T3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4365373B2 (en) * | 2006-01-19 | 2009-11-18 | トヨタ自動車株式会社 | Camshaft support structure for internal combustion engine |
| DE102007063254A1 (en) * | 2007-12-31 | 2009-07-02 | Mahle International Gmbh | Cylinder head cover |
| DE102011012149A1 (en) * | 2011-02-24 | 2012-09-13 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Cylinder head for internal combustion engine of motor vehicle, has camshaft bearing frame that is arranged on cylinder head housing, where camshaft bearing frame is fixed with central bearing points on cylinder head housing by screws |
| GB2513328A (en) * | 2013-04-23 | 2014-10-29 | Gm Global Tech Operations Inc | Cylinder head of an internal combustion engine |
| US9810176B2 (en) * | 2014-12-19 | 2017-11-07 | Ford Global Technologies, Llc | Unitary composite cam cover and carrier and assembly method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1511082A (en) * | 1966-12-15 | 1968-01-26 | Peugeot | New arrangement of the camshaft on a heat engine or compressor and resulting machine |
| DE3943728C2 (en) | 1989-12-11 | 1995-07-13 | Porsche Ag | Cylinder head of an internal combustion engine |
| FR2663366B1 (en) * | 1990-06-15 | 1994-09-16 | Peugeot | ARRANGEMENT OF CAMSHAFT IN THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE. |
| JP3150353B2 (en) | 1991-03-18 | 2001-03-26 | マツダ株式会社 | Engine combustion chamber structure |
| DE4323073A1 (en) * | 1993-07-10 | 1995-01-12 | Audi Ag | Reciprocating piston internal combustion engine |
| DE19504637C2 (en) * | 1995-02-13 | 2000-06-08 | Daimler Chrysler Ag | Arrangement for mounting a camshaft and several control elements for gas exchange control on an internal combustion engine |
| DE19745761A1 (en) * | 1997-10-16 | 1999-04-22 | Daimler Chrysler Ag | Variable valve control for reciprocating piston internal combustion engines |
-
1999
- 1999-12-13 DE DE19959989A patent/DE19959989A1/en not_active Withdrawn
-
2000
- 2000-12-01 EP EP00126265A patent/EP1108859B1/en not_active Expired - Lifetime
- 2000-12-01 ES ES00126265T patent/ES2257259T3/en not_active Expired - Lifetime
- 2000-12-01 DE DE50012564T patent/DE50012564D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2257259T3 (en) | 2006-08-01 |
| DE50012564D1 (en) | 2006-05-24 |
| DE19959989A1 (en) | 2001-06-21 |
| EP1108859A2 (en) | 2001-06-20 |
| EP1108859A3 (en) | 2002-06-12 |
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