[go: up one dir, main page]

EP1998034A2 - Cylinder head cover - Google Patents

Cylinder head cover Download PDF

Info

Publication number
EP1998034A2
EP1998034A2 EP08156342A EP08156342A EP1998034A2 EP 1998034 A2 EP1998034 A2 EP 1998034A2 EP 08156342 A EP08156342 A EP 08156342A EP 08156342 A EP08156342 A EP 08156342A EP 1998034 A2 EP1998034 A2 EP 1998034A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
head cover
bearing
cylinder
bearing upper
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.)
Granted
Application number
EP08156342A
Other languages
German (de)
French (fr)
Other versions
EP1998034B1 (en
EP1998034A3 (en
Inventor
Robert Dunsch
Stefan Ruppel
Torsten Schellhase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP1998034A2 publication Critical patent/EP1998034A2/en
Publication of EP1998034A3 publication Critical patent/EP1998034A3/en
Application granted granted Critical
Publication of EP1998034B1 publication Critical patent/EP1998034B1/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • F01L1/047—Camshafts
    • F01L2001/0476—Camshaft bearings
    • 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
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the present invention relates to a cylinder head cover for covering a cylinder crankcase of an internal combustion engine according to the preamble of claim 1.
  • a cylinder head cover for a cylinder head is known, in which first bearing halves are formed integrally with the cylinder head cover for all camshaft bearing a camshaft.
  • the second bearing halves are formed as separate parts and bolted to the first bearing halves, wherein a dividing plane between the cylinder head and cylinder head cover spaced from a dividing plane of the camshaft bearing is formed.
  • the present invention is concerned with the problem of providing an improved embodiment of a generic cylinder head cover, which facilitates in particular a mounting of the cylinder head cover on the camshaft and at the same time ensures a reliable bearing of the camshaft.
  • the invention is based on the general idea, in a cylinder head cover for covering a cylinder crankcase, these and at least one bearing shell for a camshaft to match so that they can be set with a common mounting screw on the cylinder crankcase.
  • the bearing upper part should be made of a material which has other material properties, in particular better storage properties compared to the cylinder head cover.
  • the at least one upper bearing part has at least one through opening, which on the one hand has a screw-in / through-hole in a lower part of the bearing and / or one Screw-in in the cylinder crankcase and on the other hand aligned with a through hole in the cylinder head cover so that the above-mentioned attaching the cylinder head cover and the bearing shell is possible via a common mounting screw.
  • the bearing upper part Due to the different material properties of the at least one bearing upper part and the cylinder head cover, the bearing upper part can be designed such that it has particularly good bearing properties for the camshaft to be supported, while these properties do not have to have the cylinder head cover, so that for these a specially optimized for their application, other material can be selected.
  • the cylinder head cover according to the invention thereby enables on the one hand a simplified assembly of the cylinder head cover on the camshaft, since this can be determined together with the bearing upper part and on the other hand it improves the bearing properties, as for the bearing upper part a special, selected with particularly good storage properties material is used.
  • each of the upper bearing parts may have a fastening screw, which fastened exclusively to the upper bearing part on the cylinder crankcase or the bearing shell together with the cylinder head cover.
  • the cylinder head cover is formed from a thermoplastic material
  • the Lürobeteil is formed from a thermosetting plastic.
  • Thermoplastics are plastics that can be easily deformed in a certain temperature range, namely thermoplastic. The process is reversible. This makes it possible to produce the cylinder head cover by injection molding.
  • thermosets are plastics that can not be reshaped after they have hardened. Duroplast thus remain dimensionally stable even at higher temperatures, which is particularly advantageous for the design of the upper bearing parts.
  • a bearing base for the camshaft formed from a thermosetting plastic, wherein the Lagerunter- and the bearing upper part can be formed as separate components or in one piece.
  • the two bearing parts are designed as separate components and therefore can be fixed together with the cylinder head cover on the cylinder crankcase via a common fastening screw.
  • a cylinder head 1 has a camshaft 2 mounted in a cylinder crankcase 14, which is mounted upwardly above at least one bearing upper part 3.
  • the cylinder crankcase 14 is covered by a cylinder head cover 4.
  • the at least one bearing upper part 3 for the camshaft 2 has at least one through-opening 5, which on the one hand has a screw-in / through-hole 5a in a bearing base 6 (cf. Fig. 6 ) and / or a screw-5b in the cylinder crankcase 14 and on the other hand with a through hole 5c in the cylinder head cover 4 is aligned.
  • a fastening of the cylinder head cover 4 and the bearing upper part 3 on the cylinder crankcase 14 via a common fastening screw 7 is possible.
  • the bearing upper part 3 can additionally be fastened with a fastening screw 7 'on the cylinder crankcase 14 or on a bearing base 6, which does not serve for the simultaneous fastening of the cylinder head cover 4.
  • the bearing upper part 3 is made of a material which has different material properties, as the cylinder cap 4th
  • the at least one bearing upper part 3 is formed as a separate component from the cylinder head cover 4, wherein on the cylinder head cover 4 locking elements, in particular locking bracket 8, are arranged, which allow latching of the at least one bearing shell 3 on the cylinder head cover 4.
  • locking elements in particular locking bracket 8
  • the bearing shell 3 is first bolted by the screw 7 'to the bearing base 6 and the cylinder crankcase 14 and then the cylinder head cover 4 is latched by the locking bracket 8 with the bearing shell 3, so that then the fastening screw 7 through the cylinder head cover 4, the Bearing upper part 3 can be screwed into the bearing base 6 and in the cylinder crankcase 14.
  • the fastening screw 7 is formed as a collar screw and may have a provided between the cylinder head cover 4 and the bearing shell 3 collar 9.
  • the cylinder head cover 4 is sealed relative to the cylinder crankcase 14 via a seal 10 extending along a flange and a seal 10 'arranged between the screw head and the cylinder head cover 4.
  • the at least one bearing upper part 3 has at least one sleeve extension 11 aligned with the passage opening 5c in the cylinder head cover 4, which engages in the passage opening 5c of the cylinder head cover 4 when the cylinder head cover 4 is mounted and forms a stop for a screw head of the fastening screw 7.
  • two fastening screws 7 may be provided, which cross both the cylinder head cover 4 and the upper bearing part 3.
  • the locking bracket 8 according to the Figures 2 and 3 can be molded onto the cylinder head cover 4.
  • Fig. 4 an embodiment of the cylinder head 1 according to the invention is shown, in which the bearing upper part 3 is formed as a bearing frame. In this case, a seal 10 "between the bearing upper part 3 and the cylinder crankcase 14 is provided.
  • the bearing upper part 3 formed integrally with the cylinder head cover 4, wherein it can be provided that the cylinder head cover 4 is formed of a thermoplastic material and the bearing shell 3 made of a thermosetting plastic.
  • the specific advantages of the individual types of plastic have already been mentioned in the introduction to the description. It is conceivable in this case that the upper bearing part 3 is molded onto the cylinder head cover 4 and, optionally, an additional bearing shell 12, in particular of aluminum, can be provided in the bearing upper part 3.
  • the bearing base 6 made of plastic, in particular thermosetting plastic formed, wherein the bearing base 6 and the bearing shell 3 may be formed either as separate components or in one piece.
  • the camshaft 2 is completely encapsulated.
  • the composite of the two bearing parts 3 and 6 bearing can either turn separately to the cylinder head cover 4 or integrally molded, in particular molded onto this.
  • the bearing base 6 has an oil supply passage 13 for supplying the camshaft bearing with lubricant.
  • the cylinder head cover 4 and the associated bearing upper part 3 and / or the lower bearing part 6 is constructed as a hybrid component of at least two different materials.
  • bearing shown which consists of the contiguous bearing base 6 and the associated bearing upper part 3, offers the great advantage of completely overmolding the camshaft 2 and to dispense with the machining of a camshaft bearing entirely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The cylinder head cover (4) has a bearing upper part (3) that has a through hole (5) for a cam shaft (2), which aligns on a side with a through opening (5a) in a bearing lower part (6) or a through opening (5b) in the cylinder crank case (14) and on the other side with a through opening (5c) in the cylinder head cover. The bracket lower part is made of thermosetting plastic. An independent claim is also included for an internal-combustion engine with cylinder head cover.

Description

Die vorliegende Erfindung betrifft eine Zylinderkopfhaube zur Abdeckung eines Zylinderkurbelgehäuses einer Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a cylinder head cover for covering a cylinder crankcase of an internal combustion engine according to the preamble of claim 1.

Aus der DE 43 23 073 A1 ist eine Zylinderkopfhaube zur Abdeckung einer Hubkolben-Brennkraftmaschine bekannt, wobei Lagerdeckel der Nockenwellenlager an die Zylinderkopfhaube angeformt sind.From the DE 43 23 073 A1 a cylinder head cover for covering a reciprocating internal combustion engine is known, bearing caps of the camshaft bearing are integrally formed on the cylinder head cover.

Aus der DE 10 2005 028 332 A1 ist eine Zylinderkopfhaube mit integrierten Lageroberteilen von Nockenwellenlagern bekannt, wobei die Lageroberteile über einen Dämpfungswerkstoff mit der Zylinderkopfhaube verbunden sind und wobei die Lageroberteile mit Schrauben am Zylinderkopf befestigt sind.From the DE 10 2005 028 332 A1 is a cylinder head cover with integrated bearing upper parts of camshaft bearings known, the bearing shells are connected via a damping material with the cylinder head cover and the bearing shells are fastened with screws on the cylinder head.

Aus der DE 201 20 912 U1 ist eine Zylinderkopfhaube für einen Zylinderkopf bekannt, bei welcher erste Lagerhälften für alle Nockenwellenlager einer Nockenwelle einstückig mit der Zylinderkopfhaube ausgebildet sind. Die zweiten Lagerhälften sind als separate Teile ausgebildet und an die ersten Lagerhälften angeschraubt, wobei eine Teilungsebene zwischen Zylinderkopf und Zylinderkopfhaube beabstandet von einer Teilungsebene der Nockenwellenlager ausgebildet ist. Schließlich ist aus der DE 198 53 537 A1 eine Zylinderkopfhaube bekannt, in welche ebenfalls Lageroberteile für ein Nockenwellenlager integriert sind.From the DE 201 20 912 U1 a cylinder head cover for a cylinder head is known, in which first bearing halves are formed integrally with the cylinder head cover for all camshaft bearing a camshaft. The second bearing halves are formed as separate parts and bolted to the first bearing halves, wherein a dividing plane between the cylinder head and cylinder head cover spaced from a dividing plane of the camshaft bearing is formed. Finally, out of the DE 198 53 537 A1 a cylinder head cover known, in which also bearing tops are integrated for a camshaft bearing.

Die vorliegende Erfindung beschäftigt sich mit dem Problem, eine verbesserte Ausführungsform für eine gattungsgemäße Zylinderkopfhaube anzugeben, welche insbesondere eine Montage der Zylinderkopfhaube auf der Nockenwelle erleichtert und zugleich eine zuverlässige Lagerung der Nockenwelle gewährleistet.The present invention is concerned with the problem of providing an improved embodiment of a generic cylinder head cover, which facilitates in particular a mounting of the cylinder head cover on the camshaft and at the same time ensures a reliable bearing of the camshaft.

Diese Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs 1 gelöst.This problem is solved according to the invention by the subject matter of independent claim 1.

Vorteilhafte Ausführungsformen sind Gegenstand der Unteransprüche.Advantageous embodiments are the subject of the dependent claims.

Die Erfindung beruht auf dem allgemeinen Gedanken, bei einer Zylinderkopfhaube zur Abdeckung eines Zylinderkurbelgehäuses diese und zumindest ein Lageroberteil für eine Nockenwelle so aufeinander abzustimmen, dass diese mit einer gemeinsamen Befestigungsschraube am Zylinderkurbelgehäuse festgelegt werden können. Zudem soll das Lageroberteil aus einem Material hergestellt sein, welches im Vergleich zur Zylinderkopfhaube andere Materialeigenschaften, insbesondere bessere Lagerungseigenschaften aufweist. Erfindungsgemäß weist dazu das zumindest eine Lageroberteil zumindest eine Durchgangsöffnung auf, welche einerseits mit einer Einschraub-/Durchgangsöffnung in einem Lagerunterteil und/oder einer Einschrauböffnung im Zylinderkurbelgehäuse und andererseits mit einer Durchgangsöffnung in der Zylinderkopfhaube fluchtet, so dass oben erwähntes Befestigen der Zylinderkopfhaube und des Lageroberteils über eine gemeinsame Befestigungsschraube möglich ist. Durch die unterschiedlichen Materialeigenschaften des zumindest einen Lageroberteils und der Zylinderkopfhaube lässt sich das Lageroberteil so ausbilden, dass es besonders gute Lagerungseigenschaften für die zu lagernde Nockenwelle aufweist, während diese Eigenschaften die Zylinderkopfhaube nicht aufweisen muss, so dass für diese ein speziell für deren Einsatzzweck optimiertes, anderes Material gewählt werden kann. Die erfindungsgemäße Zylinderkopfhaube ermöglicht dadurch einerseits eine vereinfacht Montage der Zylinderkopfhaube auf der Nockenwelle, da dies zusammen mit dem Lageroberteil festgelegt werden kann und zum anderen verbessert sie die Lagereigenschaften, da für das Lageroberteil ein spezielles, mit besonders guten Lagereigenschaften gewähltes Material verwendet wird.The invention is based on the general idea, in a cylinder head cover for covering a cylinder crankcase, these and at least one bearing shell for a camshaft to match so that they can be set with a common mounting screw on the cylinder crankcase. In addition, the bearing upper part should be made of a material which has other material properties, in particular better storage properties compared to the cylinder head cover. According to the invention, the at least one upper bearing part has at least one through opening, which on the one hand has a screw-in / through-hole in a lower part of the bearing and / or one Screw-in in the cylinder crankcase and on the other hand aligned with a through hole in the cylinder head cover so that the above-mentioned attaching the cylinder head cover and the bearing shell is possible via a common mounting screw. Due to the different material properties of the at least one bearing upper part and the cylinder head cover, the bearing upper part can be designed such that it has particularly good bearing properties for the camshaft to be supported, while these properties do not have to have the cylinder head cover, so that for these a specially optimized for their application, other material can be selected. The cylinder head cover according to the invention thereby enables on the one hand a simplified assembly of the cylinder head cover on the camshaft, since this can be determined together with the bearing upper part and on the other hand it improves the bearing properties, as for the bearing upper part a special, selected with particularly good storage properties material is used.

Zweckmäßig sind an der Zylinderkopfhaube Rastbügel angeordnet, welche ein Verrasten des wenigstens einen Lageroberteils an der Zylinderkopfhaube ermöglichen. Derartige Rastbügel spielen insbesondere bei einem Lageroberteil eine Rolle, welches als zur Zylinderkopfhaube separates Bauteil ausgebildet ist. In diesem Fall kann das zumindest eine Lageroberteil einfach mit den an der Zylinderkopfhaube vorgesehenen Rastbügeln verrastet werden und damit problemlos zusammen mit der Zylinderkopfhaube auf das Zylinderkurbelgehäuse aufgesetzt und verschraubt werden. Denkbar ist hierbei auch, dass das zunächst das Lageroberteil mit dem Zylinderkurbelgehäuse verschraubt wird und anschließend die Zylinderkopfhaube zunächst über die Rastbügel mit dem zumindest einen Lageroberteil verrastet wird und dadurch eine bereits für die Endmontage vordefinierte Position einnimmt. Generell kann dabei jedes der Lageroberteile eine Befestigungsschraube aufweisen, welche ausschließlich das Lageroberteil am Zylinderkurbelgehäuse oder das Lageroberteil zusammen mit der Zylinderkopfhaube an befestigt.It is expedient to arrange latching clips on the cylinder head cover, which allow latching of the at least one bearing upper part to the cylinder head cover. Such locking bracket play in particular in a bearing upper part of a role, which is designed as a separate component to the cylinder head cover. In this case, the at least one upper bearing part can easily be locked with the provided on the cylinder head cover locking brackets and thus easily put together with the cylinder head cover on the cylinder crankcase and bolted. It is also conceivable that the first bearing upper part is bolted to the cylinder crankcase and then the cylinder head cover is first latched on the latch bracket with the at least one bearing shell and thereby assumes a predefined position for final assembly. In general, each of the upper bearing parts may have a fastening screw, which fastened exclusively to the upper bearing part on the cylinder crankcase or the bearing shell together with the cylinder head cover.

Zweckmäßig ist die Zylinderkopfhaube aus einem thermoplastischen Kunststoff ausgebildet, während das Lagerobeteil aus einem duroplastischen Kunststoff ausgebildet ist. Thermoplaste sind Kunststoffe, die sich in einem bestimmten Temperaturbereich einfach, nämlich thermoplastisch, verformen lassen. Der Vorgang ist dabei reversibel. Hierdurch ist ein Herstellen der Zylinderkopfhaube im Spritzgießverfahren möglich. Dem gegenüber sind Duroplaste Kunststoffe, welche nach Ihrer Aushärtung nicht wieder verformt werden können. Duroplaste bleiben somit auch bei höheren Temperaturen formbeständig, was insbesondere für die Ausbildung der Lageroberteile von besonderem Vorteil ist. Darüber hinaus ist es möglich, Duroplaste mit unterschiedlichen Eigenschaften, insbesondere mit einer hohen Chemikalienbeständigkeit auszubilden, wodurch ein Einsatz in einem mit zum Teil aggressiven Motorölen beaufschlagten Nockenwellenraum möglich ist.Suitably, the cylinder head cover is formed from a thermoplastic material, while the Lagerobeteil is formed from a thermosetting plastic. Thermoplastics are plastics that can be easily deformed in a certain temperature range, namely thermoplastic. The process is reversible. This makes it possible to produce the cylinder head cover by injection molding. On the other hand, thermosets are plastics that can not be reshaped after they have hardened. Duroplast thus remain dimensionally stable even at higher temperatures, which is particularly advantageous for the design of the upper bearing parts. In addition, it is possible to form thermosets with different properties, in particular with a high resistance to chemicals, whereby an employment in one with sometimes aggressive engine oils acted upon camshaft space is possible.

Bei einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Lösung ist ein Lagerunterteil für die Nockenwelle aus einem duroplastischen Kunststoff ausgebildet, wobei das Lagerunter- und das Lageroberteil als separate Bauteile oder einteilig ausgebildet sein können. Insbesondere bei der letzten Variante ist es möglich, das Lagerunterteil und das Lageroberteil in einem Spritzvorgang um die Nockenwelle herum zu spritzen, wodurch besonders gute Lagereigenschaften erzielt werden können. Denkbar ist aber auch, dass die beiden Lagerteile, wie oben erwähnt, als separate Bauteile ausgebildet sind und demnach über eine gemeinsame Befestigungsschraube zusammen mit der Zylinderkopfhaube am Zylinderkurbelgehäuse festgelegt werden können.In a further advantageous embodiment of the solution according to the invention is a bearing base for the camshaft formed from a thermosetting plastic, wherein the Lagerunter- and the bearing upper part can be formed as separate components or in one piece. In particular, in the last variant, it is possible to inject the bearing base and the bearing shell in an injection process around the camshaft around, whereby particularly good storage properties can be achieved. It is also conceivable, however, that the two bearing parts, as mentioned above, are designed as separate components and therefore can be fixed together with the cylinder head cover on the cylinder crankcase via a common fastening screw.

Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to 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 is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from 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 of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.

Es zeigen, jeweils schematisch,

Fig. 1
eine erste Ausführungsform einer erfindungsgemäßen Zylinderkopfhaube,
Fig. 2
eine Darstellung wie in Fig. 1, jedoch mit an der Zylinderkopfhaube angeformten Rastbügeln,
Fig. 3
eine Darstellung wie in Fig. 2, jedoch bei einer anderen Ausführungsform,
Fig. 4
eine Zylinderkopfhaube mit einem als Lagerrahmen ausgebildeten Lageroberteil,
Fig. 5
eine Darstellung einer Zylinderkopfhaube mit einem angespritzten Lageroberteil,
Fig. 6
eine Darstellung mit einem zum Zylinderkurbelge häuse separat hergestellten Lagerunterteil für die Nockenwelle.
Show, in each case schematically,
Fig. 1
a first embodiment of a cylinder head cover according to the invention,
Fig. 2
a representation like in Fig. 1 , but with latching clips formed on the cylinder head cover,
Fig. 3
a representation like in Fig. 2 but in another embodiment,
Fig. 4
a cylinder head cover with a bearing shell designed as a bearing frame,
Fig. 5
a representation of a cylinder head cover with a molded bearing shell,
Fig. 6
an illustration with a housing for Zylinderkurbelge separately manufactured bearing base for the camshaft.

Entsprechend den Figuren 1 bis 6 weist ein Zylinderkopf 1 eine in einem Zylinderkurbelgehäuse 14 gelagerte Nockenwelle 2 auf, welche nach oben über zumindest ein Lageroberteil 3 gelagert ist. Abgedeckt wird das Zylinderkurbelgehäuse 14 über eine Zylinderkopfhaube 4.According to the FIGS. 1 to 6 For example, a cylinder head 1 has a camshaft 2 mounted in a cylinder crankcase 14, which is mounted upwardly above at least one bearing upper part 3. The cylinder crankcase 14 is covered by a cylinder head cover 4.

Erfindungsgemäß weist das zumindest eine Lageroberteil 3 für die Nockenwelle 2 zumindest eine Durchgangsöffnung 5 auf, welche einerseits mit einer Einschraub-/Durchgangsöffnung 5a in einem Lagerunterteil 6 (vergleiche Fig. 6) und/oder einer Einschrauböffnung 5b im Zylinderkurbelgehäuse 14 und andererseits mit einer Durchgangsöffnung 5c in der Zylinderkopfhaube 4 fluchtet. Hierdurch ist ein Befestigen der Zylinderkopfhaube 4 und des Lageroberteils 3 am Zylinderkurbelgehäuse 14 über eine gemeinsame Befestigungsschraube 7 möglich.According to the invention, the at least one bearing upper part 3 for the camshaft 2 has at least one through-opening 5, which on the one hand has a screw-in / through-hole 5a in a bearing base 6 (cf. Fig. 6 ) and / or a screw-5b in the cylinder crankcase 14 and on the other hand with a through hole 5c in the cylinder head cover 4 is aligned. As a result, a fastening of the cylinder head cover 4 and the bearing upper part 3 on the cylinder crankcase 14 via a common fastening screw 7 is possible.

Gemäß der Fig. 1 kann dabei das Lageroberteil 3 zusätzlich mit einer Befestigungsschraube 7' am Zylinderkurbelgehäuse 14 beziehungsweise an einem Lagerunterteil 6 befestigt werden, welche nicht zur gleichzeitigen Befestigung der Zylinderkopfhaube 4 dient.According to the Fig. 1 In this case, the bearing upper part 3 can additionally be fastened with a fastening screw 7 'on the cylinder crankcase 14 or on a bearing base 6, which does not serve for the simultaneous fastening of the cylinder head cover 4.

Um darüber hinaus die Materialeigenschaften des Lageroberteils 3 optimal auf die Lagerung der Nockenwelle 2 abstimmen zu können, ist das Lageroberteil 3 aus einem Material hergestellt, welches andere Materialeigenschaften aufweist, als die Zylinderhaube 4.In order to be able to optimally coordinate the material properties of the bearing upper part 3 on the bearing of the camshaft 2, the bearing upper part 3 is made of a material which has different material properties, as the cylinder cap 4th

Durch die gemeinsame Befestigungsschraube 7 kann auf separate Befestigungsschrauben zu Befestigung der Zylinderkopfhaube 4 am Zylinderkurbelgehäuse 14 verzichtet werden.Due to the common fastening screw 7 can be dispensed with separate fastening screws for fastening the cylinder head cover 4 on the cylinder crankcase 14.

In Fig. 1 ist das wenigstens eine Lageroberteil 3 als von der Zylinderkopfhaube 4 separates Bauteil ausgebildet, wobei an der Zylinderkopfhaube 4 Rastelemente, insbesondere Rastbügel 8, angeordnet sind, welche ein Verrasten des wenigstens einen Lageroberteils 3 an der Zylinderkopfhaube 4 ermöglichen. Hierdurch ist es möglich, dass das Lageroberteil 3 zunächst über die Rastbügel 8 mit der Zylinderkopfhaube 4 verrastet wird und anschließend beide gemeinsam auf dem Zylinderkurbelgehäuse 14 beziehungsweise auf das Lagerunterteil 6 aufgesetzt werden. Denkbar ist hierbei auch, dass wie in Fig. 2 gezeigt, das Lageroberteil 3 zunächst durch die Schraube 7' mit dem Lagerunterteil 6 beziehungsweise mit dem Zylinderkurbelgehäuse 14 verschraubt wird und anschließend die Zylinderkopfhaube 4 durch die Rastbügel 8 mit dem Lageroberteil 3 verrastet wird, so dass anschließend die Befestigungsschraube 7 durch die Zylinderkopfhaube 4, das Lageroberteil 3 in das Lagerunterteil 6 beziehungsweise in das Zylinderkurbelgehäuse 14 eingeschraubt werden kann.In Fig. 1 the at least one bearing upper part 3 is formed as a separate component from the cylinder head cover 4, wherein on the cylinder head cover 4 locking elements, in particular locking bracket 8, are arranged, which allow latching of the at least one bearing shell 3 on the cylinder head cover 4. This makes it possible that the bearing upper part 3 is first latched on the latch bracket 8 with the cylinder head cover 4 and then both are placed together on the cylinder crankcase 14 and on the bearing base 6. It is also conceivable that as in Fig. 2 shown, the bearing shell 3 is first bolted by the screw 7 'to the bearing base 6 and the cylinder crankcase 14 and then the cylinder head cover 4 is latched by the locking bracket 8 with the bearing shell 3, so that then the fastening screw 7 through the cylinder head cover 4, the Bearing upper part 3 can be screwed into the bearing base 6 and in the cylinder crankcase 14.

Wie in den Figuren 1 und 2 dargestellt, ist die Befestigungsschraube 7 als Bundschraube ausgebildet und kann einen zwischen der Zylinderkopfhaube 4 und dem Lageroberteil 3 vorgesehenen Bund 9 aufweisen. Abgedichtet ist dabei die Zylinderkopfhaube 4 gegenüber dem Zylinderkurbelgehäuse 14 über eine entlang eines Flansches verlaufende Dichtung 10 sowie eine zwischen Schraubenkopf und Zylinderkopfhaube 4 angeordnete Dichtung 10'.As in the Figures 1 and 2 illustrated, the fastening screw 7 is formed as a collar screw and may have a provided between the cylinder head cover 4 and the bearing shell 3 collar 9. The cylinder head cover 4 is sealed relative to the cylinder crankcase 14 via a seal 10 extending along a flange and a seal 10 'arranged between the screw head and the cylinder head cover 4.

Gemäß Fig. 3 weist das wenigstens eine Lageroberteil 3 wenigstens einen mit der Durchgangsöffnung 5c in der Zylinderkopfhaube 4 fluchtenden Hülsenfortsatz 11 auf, welcher bei montierter Zylinderkopfhaube 4 in die Durchgangsöffnung 5c der Zylinderkopfhaube 4 eingreift und einen Anschlag für einen Schraubenkopf der Befestigungsschraube 7 bildet. Hierdurch wird ermöglicht, dass eine Anziehwirkung der Befestigungsschraube 7 nicht indirekt über die Zylinderkopfhaube 4 auf das Lageroberteil 3 wirkt, sondern direkt über den Hülsenfortsatz 11 auf das Lageroberteil 3. Wie in Fig. 3 gezeigt, können im Vergleich zu Fig. 2 auch zwei Befestigungsschrauben 7 vorgesehen sein, welche sowohl die Zylinderkopfhaube 4 als auch das Lageroberteil 3 queren. Die Rastbügel 8 gemäß den Figuren 2 und 3 können dabei an die Zylinderkopfhaube 4 angespritzt sein.According to Fig. 3 the at least one bearing upper part 3 has at least one sleeve extension 11 aligned with the passage opening 5c in the cylinder head cover 4, which engages in the passage opening 5c of the cylinder head cover 4 when the cylinder head cover 4 is mounted and forms a stop for a screw head of the fastening screw 7. This makes it possible for a tightening effect of the fastening screw 7 does not act indirectly on the cylinder head cover 4 on the upper bearing part 3, but directly on the sleeve extension 11 on the upper bearing part 3. As in Fig. 3 can be compared to Fig. 2 also two fastening screws 7 may be provided, which cross both the cylinder head cover 4 and the upper bearing part 3. The locking bracket 8 according to the Figures 2 and 3 can be molded onto the cylinder head cover 4.

Gemäß Fig. 4 ist eine Ausführungform des erfindungsgemäßen Zylinderkopfes 1 gezeigt, bei welcher das Lageroberteil 3 als Lagerrahmen ausgebildet ist. Hierbei ist auch eine Dichtung 10" zwischen dem Lageroberteil 3 und dem Zylinderkurbelgehäuse 14 vorgesehen.According to Fig. 4 an embodiment of the cylinder head 1 according to the invention is shown, in which the bearing upper part 3 is formed as a bearing frame. In this case, a seal 10 "between the bearing upper part 3 and the cylinder crankcase 14 is provided.

Gemäß der Fig. 5 ist das Lageroberteil 3 einteilig mit der Zylinderkopfhaube 4 ausgebildet, wobei vorgesehen sein kann, dass die Zylinderkopfhaube 4 aus einem thermoplastischen Kunststoff und das Lageroberteil 3 aus einem duroplastischen Kunststoff ausgebildet ist. Die spezifischen Vorteile der einzelnen Kunststoffarten wurden bereits in der Beschreibungseinleitung erwähnt. Denkbar ist hierbei, dass das Lageroberteil 3 an die Zylinderkopfhaube 4 angespritzt ist und optional kann darüber hinaus eine in das Lageroberteil 3 eingelassene Lagerschale 12, insbesondere aus Aluminium, vorgesehen sein.According to the Fig. 5 is the bearing upper part 3 formed integrally with the cylinder head cover 4, wherein it can be provided that the cylinder head cover 4 is formed of a thermoplastic material and the bearing shell 3 made of a thermosetting plastic. The specific advantages of the individual types of plastic have already been mentioned in the introduction to the description. It is conceivable in this case that the upper bearing part 3 is molded onto the cylinder head cover 4 and, optionally, an additional bearing shell 12, in particular of aluminum, can be provided in the bearing upper part 3.

Im Vergleich zur Fig. 5 ist in Fig. 6 auch das Lagerunterteil 6 aus Kunststoff, insbesondere duroplastischem Kunststoff ausgebildet, wobei das Lagerunterteil 6 und das Lageroberteil 3 entweder als separate Bauteile oder einteilig ausgebildet sein können. Bei einer einteiligen Ausbildung der beiden Lagerteile 3 und 6 wird somit die Nockenwelle 2 vollständig umspritzt. Das aus den beiden Lagerteilen 3 und 6 zusammengesetzte Lager kann dabei entweder wiederum separat zur Zylinderkopfhaube 4 oder einteilig, insbesondere an diese angespritzt, ausgebildet sein. Vorzugsweise weist dabei das Lagerunterteil 6 einen Ölzuführungskanal 13 zur Versorgung der Nockenwellenlagerung mit Schmierstoff auf. Bei der Darstellung gemäß der Fig. 5 sind im Vergleich zu den vorigen Figuren deutlich mehr Dichtungen 10 erforderlich.In comparison to Fig. 5 is in Fig. 6 also the bearing base 6 made of plastic, in particular thermosetting plastic formed, wherein the bearing base 6 and the bearing shell 3 may be formed either as separate components or in one piece. In a one-piece design of the two bearing parts 3 and 6, therefore, the camshaft 2 is completely encapsulated. The composite of the two bearing parts 3 and 6 bearing can either turn separately to the cylinder head cover 4 or integrally molded, in particular molded onto this. Preferably, the bearing base 6 has an oil supply passage 13 for supplying the camshaft bearing with lubricant. In the representation according to the Fig. 5 are significantly more seals 10 required compared to the previous figures.

In den Figuren 5 und 6 ist somit die Zylinderkopfhaube 4 beziehungsweise das zugehörige Lageroberteil 3 und/oder das Lagerunterteil 6 als Hybridbauteil aus zumindest zwei verschiedenen Materialien aufgebaut. Insbesondere das gemäß Fig. 6 gezeigte Lager, welches aus dem zusammenhängenden Lagerunterteil 6 und dem dazugehörigen Lageroberteil 3 besteht, bietet den großen Vorteil, die Nockenwelle 2 vollständig zu umspritzen und auf die Bearbeitung eines Nockenwellenlagers gänzlich zu verzichten.In the FIGS. 5 and 6 Thus, the cylinder head cover 4 and the associated bearing upper part 3 and / or the lower bearing part 6 is constructed as a hybrid component of at least two different materials. In particular, according to Fig. 6 bearing shown, which consists of the contiguous bearing base 6 and the associated bearing upper part 3, offers the great advantage of completely overmolding the camshaft 2 and to dispense with the machining of a camshaft bearing entirely.

Durch die Befestigungsschrauben 7, mit welchen nicht nur das Lageroberteil 3 am Zylinderkurbelgehäuse 14 oder an einem Lagerunterteil 6 befestigt wird, sondern gleichzeitig auch die Zylinderkopfhaube 4, lassen sich einige Befestigungsschrauben 7' einsparen, was zum einen zu einer Reduktion der Teilevielfalt und zum anderen zu einer Reduzierung der Kosten sowie des Gewichtes führt.By fastening screws 7, with which not only the upper bearing part 3 is attached to the cylinder crankcase 14 or on a bearing base 6, but at the same time the cylinder head cover 4, can be a few screws 7 'save, resulting in a reduction of the Part diversity and on the other to a reduction in the cost and weight leads.

Claims (10)

Zylinderkopfhaube (4) zur Abdeckung eines Zylinderkurbelgehäuses (14) einer Brennkraftmaschine,
dadurch gekennzeichnet, - dass zumindest ein Lageroberteil (3) für eine Nockenwelle (2) zumindest eine Durchgangsöffnung (5) aufweist, welche einerseits mit einer Einschraub-/Durchgangsöffnung (5a) in einem Lagerunterteil (6) und/oder einer Einschrauböffnung (5b) im Zylinderkurbelgehäuse (14) und andererseits mit einer Durchgangsöffnung (5c) in der Zylinderkopfhaube (4) fluchtet, so dass ein Befestigen der Zylinderkopfhaube (4) und des Lageroberteils (3) am Zylinderkurbelgehäuse (14) über eine gemeinsame Befestigungsschraube (7) möglich ist, - dass die Zylinderkopfhaube (4) aus einem Material hergestellt ist, welches andere Materialeigenschaften aufweist, als das zumindest eine Lageroberteil (3). Cylinder head cover (4) for covering a cylinder crankcase (14) of an internal combustion engine,
characterized, in that at least one bearing upper part (3) for a camshaft (2) has at least one passage opening (5) which on the one hand has a screw-in / through-hole (5a) in a bearing base (6) and / or a screw-in opening (5b) in the cylinder crankcase ( 14) and on the other hand with a passage opening (5c) in the cylinder head cover (4) is aligned, so that a fastening of the cylinder head cover (4) and the bearing upper part (3) on the cylinder crankcase (14) via a common fastening screw (7) is possible, - That the cylinder head cover (4) is made of a material having other material properties than the at least one bearing shell (3). Zylinderkopfhaube nach Anspruch 1,
dadurch gekennzeichnet,
dass das wenigstens eine Lageroberteil (3) als von der Zylinderkopfhaube (4) separates Bauteil ausgebildet ist.Cylinder head cover according to claim 1,
characterized,
in that the at least one bearing upper part (3) is designed as a separate component from the cylinder head cover (4). Zylinderkopfhaube nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass an der Zylinderkopfhaube (4) Rastelemente (8) angeordnet sind, welche ein Verrasten des wenigstens einen Lageroberteils (3) an der Zylinderkopfhaube (4) ermöglichen.Cylinder head cover according to claim 1 or 2,
characterized,
in that latching elements (8) are arranged on the cylinder head cover (4), which allow latching of the at least one bearing upper part (3) on the cylinder head cover (4). Zylinderkopfhaube nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass das wenigstens eine Lageroberteil (3) wenigstens einen mit der Durchgangsöffnung (5c) in der Zylinderkopfhaube (4) fluchtenden Hülsenfortsatz (11) aufweist, der bei montierter Zylinderkopfhaube (4) in die Durchgangsöffnung (5c) der Zylinderkopfhaube (4) eingreift und einen Anschlag für einen Schraubenkopf der Befestigungsschraube (7) bildet.Cylinder head cover according to one of claims 1 to 3,
characterized,
in that the at least one bearing upper part (3) has at least one sleeve extension (11) aligned with the passage opening (5c) in the cylinder head cover (4), which engages with the cylinder head cover (4) in the passage opening (5c) of the cylinder head cover (4) and engages Stop for a screw head of the fastening screw (7) forms. Zylinderkopfhaube nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass das wenigstens eine Lageroberteil (3) als Lagerrahmen ausgebildet ist.Cylinder head cover according to one of claims 1 to 4,
characterized,
in that the at least one bearing upper part (3) is designed as a bearing frame. Zylinderkopfhaube nach Anspruch 1,
dadurch gekennzeichnet,
dass das Lageroberteil (3) einteilig mit der Zylinderkopfhaube (4) ausgebildet ist.Cylinder head cover according to claim 1,
characterized,
that the bearing shell (3) is formed integrally with the cylinder head cover (4). Zylinderkopfhaube nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass die Zylinderkopfhaube (4) aus einem thermoplastischen Kunststoff und das Lageroberteil (3) aus einem duroplastischen Kunststoff ausgebildet ist.Cylinder head cover according to one of claims 1 to 6,
characterized,
that the cylinder head cover (4) made of a thermoplastic material and the bearing upper part (3) is formed from a thermosetting plastic. Zylinderkopfhaube nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass ein Lagerunterteil (6) aus einem duroplastischen Kunststoff ausgebildet ist, wobei das Lagerunter- und das Lageroberteil (6, 3) als separate Bauteile oder einteilig ausgebildet sein können.Cylinder head cover according to one of claims 1 to 7,
characterized,
that a bearing part (6) is formed of a thermosetting plastic, wherein the Lagerunter- and the bearing upper part (6, 3) may be separate components or integrally formed. Zylinderkopfhaube nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet,
dass im Lagerunterteil (6) ein Ölkanal (13) vorgesehen, insbesondere eingespritzt ist.Cylinder head cover according to one of claims 1 to 8,
characterized,
in that an oil channel (13) is provided, in particular injected, in the lower bearing part (6). Brennkraftmaschine mit einer Zylinderkopfhaube (4) nach einem der Ansprüche 1 bis 9.Internal combustion engine with a cylinder head cover (4) according to one of claims 1 to 9.
EP08156342.1A 2007-05-30 2008-05-16 Cylinder head cover Ceased EP1998034B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007025129A DE102007025129A1 (en) 2007-05-30 2007-05-30 Cylinder head cover

Publications (3)

Publication Number Publication Date
EP1998034A2 true EP1998034A2 (en) 2008-12-03
EP1998034A3 EP1998034A3 (en) 2009-11-04
EP1998034B1 EP1998034B1 (en) 2014-02-12

Family

ID=39735351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08156342.1A Ceased EP1998034B1 (en) 2007-05-30 2008-05-16 Cylinder head cover

Country Status (4)

Country Link
US (1) US7845322B2 (en)
EP (1) EP1998034B1 (en)
JP (1) JP5124343B2 (en)
DE (1) DE102007025129A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083287A1 (en) * 2007-12-31 2009-07-09 Mahle International Gmbh Cylinder head cover
WO2009095215A1 (en) * 2008-01-31 2009-08-06 Thyssenkrupp Presta Teccenter Ag Camshaft module
CN103925102A (en) * 2014-05-07 2014-07-16 广西玉柴机器股份有限公司 Composite cylinder cover
EP2546504A3 (en) * 2011-07-14 2015-01-21 MAHLE International GmbH Internal combustion engine
WO2015197410A1 (en) * 2014-06-27 2015-12-30 Polytec Plastics Germany Gmbh & Co. Kg Cylinder head cover for a motor vehicle
CN106662037A (en) * 2014-06-27 2017-05-10 爱尔铃克铃尔股份公司 Cylinder head cover and method for producing a cylinder head cover
DE102016115237A1 (en) 2016-08-17 2018-03-08 Thyssenkrupp Ag Camshaft module, gasket and method of making a camshaft module
FR3090748A1 (en) * 2018-12-20 2020-06-26 Renault Sas Cylinder head comprising positioning means for a lower half-bearing
US20220275770A1 (en) * 2021-02-26 2022-09-01 Mahle International Gmbh Cylinder head cover

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007063257A1 (en) * 2007-12-31 2009-07-02 Mahle International Gmbh Storage facility
JP4801720B2 (en) 2008-12-09 2011-10-26 トヨタ紡織株式会社 Composite member fixing structure
US20120199096A1 (en) * 2009-10-13 2012-08-09 Honda Motor Co., Ltd. Cover member fastening method and fastening structure for a head cover
DE102012007334A1 (en) * 2012-04-12 2013-10-17 Neumayer Tekfor Holding Gmbh Method for producing a camshaft module and corresponding camshaft module
DE102014106925B4 (en) * 2014-05-16 2017-05-11 Thyssenkrupp Presta Teccenter Ag Bearing bridge for the bearing of a camshaft
JP2018031260A (en) * 2015-01-08 2018-03-01 三菱自動車工業株式会社 cylinder head
US9725051B2 (en) * 2015-05-01 2017-08-08 Ford Global Technologies, Llc Engine cover assembly feature
DE102015211068B4 (en) * 2015-06-17 2021-09-16 Thyssenkrupp Ag Combination module comprising an insert ring and a fastening element
DE102015224440A1 (en) * 2015-12-07 2017-06-08 Mahle International Gmbh Cylinder head cover
JP6637357B2 (en) * 2016-03-28 2020-01-29 本田技研工業株式会社 Power unit
DE102016121480B4 (en) * 2016-11-09 2023-07-27 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Process for manufacturing a camshaft module
DE102017213684A1 (en) * 2017-08-07 2019-02-07 Mahle International Gmbh Module comprising a cylinder head cover and a camshaft bearing, assembly of the module with a cylinder head and method for producing this composite
DE102017118862A1 (en) 2017-08-18 2019-02-21 Man Truck & Bus Ag Device for rotatably supporting a camshaft
DE102018205982A1 (en) * 2018-04-19 2019-10-24 Mahle International Gmbh Bearing frame or cylinder head cover of an internal combustion engine
US11661904B2 (en) * 2019-12-24 2023-05-30 Fleetguard Filters Private Limited Cylinder cover for internal combustion engine
DE102022203445A1 (en) * 2022-04-06 2023-10-12 Mahle International Gmbh Cylinder head cover assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017048A1 (en) 1990-05-26 1991-11-28 Opel Adam Ag Twin overhead camshafts for IC engine - has common bearing of both shafts
DE4323073A1 (en) 1993-07-10 1995-01-12 Audi Ag Reciprocating piston internal combustion engine
DE19853537A1 (en) 1998-11-20 2000-05-25 Audi Ag Internal combustion engine with venting line, in which second end of venting line is connected via apertures to cylinder head cover but can be released from it
DE20120912U1 (en) 2001-12-24 2002-06-06 Volkswagen Ag, 38440 Wolfsburg Cylinder head cover for an internal combustion engine
DE102005028332A1 (en) 2005-06-18 2007-01-04 Daimlerchrysler Ag Cylinder head cap for internal combustion (IC) engine, partially applies pressure to soundproofing material between cap and cylinder head

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1631410A (en) * 1925-03-25 1927-06-07 Fornaca Guido Valve mechanism for internal-combustion engines
JPS6058994U (en) * 1983-09-29 1985-04-24 日産ディーゼル工業株式会社 Locker cover mounting device
DE3603938A1 (en) * 1986-02-07 1987-08-13 Bayerische Motoren Werke Ag Timing gear case designed separately from the cylinder head of an internal combustion engine
JPS6394059A (en) * 1986-10-09 1988-04-25 Yamaha Motor Co Ltd Four cycle engine for vehicle such as motorcycle
US5070824A (en) * 1988-05-30 1991-12-10 Yamaha Hatsudoki Kabushiki Kaisha Combustion chamber and valve operating mechanism for multi-valve engine
JP2794900B2 (en) * 1990-05-23 1998-09-10 松下電器産業株式会社 Pinch roller device
DE4324791A1 (en) * 1993-07-23 1995-01-26 Porsche Ag Cylinder head arrangement of an internal combustion engine
DE19603692A1 (en) * 1996-02-02 1997-08-07 Mbi Maschinen Und Bauingenieur Cylinder head with integrated camshaft bearing gap
US5987973A (en) * 1996-07-24 1999-11-23 Honda Giken Kogyo Kabushiki Kaisha Rotation detecting device of an engine
JPH11324846A (en) * 1998-05-11 1999-11-26 Yamaha Motor Co Ltd Internal combustion engine
JP2000027665A (en) * 1998-07-14 2000-01-25 Ge Plastics Japan Ltd Resin throttle chamber and method of manufacturing the same
JP2000045742A (en) * 1998-07-29 2000-02-15 Honda Motor Co Ltd Lubrication oil outlet
US6257188B1 (en) * 1998-09-02 2001-07-10 Honda Giken Kogyo Kabushiki Kaisha Structure for mounting cylinder head cover of internal combustion engine
ITPR20010080A1 (en) 2001-11-19 2003-05-19 Amps Spa PROCEDURE FOR THE CONDENSATION OF COMING STEAM
EP1312772B1 (en) * 2001-11-19 2004-08-11 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine with valve train
JP3714463B2 (en) * 2001-11-19 2005-11-09 本田技研工業株式会社 Internal combustion engine provided with valve gear
DE10332648A1 (en) * 2003-07-18 2005-02-24 Ab Skf Housing for two-part bearing for machines and motor vehicles especially for cardan shafts with two bearing parts formed by forced breaking of the housing
DE102005028331A1 (en) 2005-06-18 2006-12-21 Schnell, Hans-Günther Collision protection for ship has the bows extension deformable to absorb impact forces
DE102005030914A1 (en) * 2005-06-30 2007-01-11 Mann + Hummel Gmbh Combustion engine camshaft wear and functional test procedure views camshaft under stroboscopic lighting through transparent windows in valve cover
DE202005013879U1 (en) * 2005-09-01 2007-01-11 Mann + Hummel Gmbh Cylinder head cover for combustion engine, has peripheral joint forming sealed connection between cylinder head and casing that is coupled to cylinder head via ball cups and ball heads engaged in cups made of elastic plastic material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017048A1 (en) 1990-05-26 1991-11-28 Opel Adam Ag Twin overhead camshafts for IC engine - has common bearing of both shafts
DE4323073A1 (en) 1993-07-10 1995-01-12 Audi Ag Reciprocating piston internal combustion engine
DE19853537A1 (en) 1998-11-20 2000-05-25 Audi Ag Internal combustion engine with venting line, in which second end of venting line is connected via apertures to cylinder head cover but can be released from it
DE20120912U1 (en) 2001-12-24 2002-06-06 Volkswagen Ag, 38440 Wolfsburg Cylinder head cover for an internal combustion engine
DE102005028332A1 (en) 2005-06-18 2007-01-04 Daimlerchrysler Ag Cylinder head cap for internal combustion (IC) engine, partially applies pressure to soundproofing material between cap and cylinder head

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083287A1 (en) * 2007-12-31 2009-07-09 Mahle International Gmbh Cylinder head cover
US9175636B2 (en) 2007-12-31 2015-11-03 Mahle International Gmbh Cylinder head cover
WO2009095215A1 (en) * 2008-01-31 2009-08-06 Thyssenkrupp Presta Teccenter Ag Camshaft module
US8590499B2 (en) 2008-01-31 2013-11-26 Thyssenkrupp Presta Teccenter Ag Camshaft module for attachment to a cylinder head of an internal combustion engine
EP2546504A3 (en) * 2011-07-14 2015-01-21 MAHLE International GmbH Internal combustion engine
EP2546504B1 (en) 2011-07-14 2018-10-03 MAHLE International GmbH Internal combustion engine
CN103925102A (en) * 2014-05-07 2014-07-16 广西玉柴机器股份有限公司 Composite cylinder cover
CN103925102B (en) * 2014-05-07 2015-04-01 广西玉柴机器股份有限公司 Composite cylinder cover
CN106662037A (en) * 2014-06-27 2017-05-10 爱尔铃克铃尔股份公司 Cylinder head cover and method for producing a cylinder head cover
WO2015197410A1 (en) * 2014-06-27 2015-12-30 Polytec Plastics Germany Gmbh & Co. Kg Cylinder head cover for a motor vehicle
US10208663B2 (en) 2014-06-27 2019-02-19 Polytec Plastics Germany Gmbh & Co. Kg Cylinder head cover for a motor vehicle
US10533517B2 (en) 2014-06-27 2020-01-14 Elringklinger Ag Cylinder head cover and method for producing a cylinder head cover
DE102016115237A1 (en) 2016-08-17 2018-03-08 Thyssenkrupp Ag Camshaft module, gasket and method of making a camshaft module
DE102016115237B4 (en) 2016-08-17 2019-06-13 Thyssenkrupp Ag Camshaft module, gasket and method of making a camshaft module
DE102016115237C5 (en) 2016-08-17 2023-11-16 Thyssenkrupp Ag Camshaft module, seal and method for producing a camshaft module
FR3090748A1 (en) * 2018-12-20 2020-06-26 Renault Sas Cylinder head comprising positioning means for a lower half-bearing
US20220275770A1 (en) * 2021-02-26 2022-09-01 Mahle International Gmbh Cylinder head cover

Also Published As

Publication number Publication date
JP5124343B2 (en) 2013-01-23
EP1998034B1 (en) 2014-02-12
JP2008298072A (en) 2008-12-11
EP1998034A3 (en) 2009-11-04
US7845322B2 (en) 2010-12-07
DE102007025129A1 (en) 2008-12-04
US20080295796A1 (en) 2008-12-04

Similar Documents

Publication Publication Date Title
EP1998034B1 (en) Cylinder head cover
EP2225452B1 (en) Cylinder head cover
DE2520612A1 (en) DRAINAGE POT ARRANGEMENT
DE102007041949B3 (en) fasteners
EP3361086B2 (en) Holder for fixing a tubular element on a mounted structure
DE102007063255A1 (en) Storage facility
DE102007046531B3 (en) Sealing device for sealing between a steering gear housing and a front wall panel of a motor vehicle body
DE102006004678A1 (en) Assembly unit for the fastening eye of a buckle
DE102011010037A1 (en) Device for fastening a first component to a second component
DE102013008983A1 (en) Lashing device for a fastening screw on a component
EP2177725B1 (en) Filter device
EP3037150B1 (en) Filter device
DE20209513U1 (en) cap
EP3179060A1 (en) Cylinder head cover
EP2331805B1 (en) Filter device for internal combustion engines
DE102008020099B4 (en) By at least one fastening screw to be mounted component
DE102011010637A1 (en) Device for fastening a first component to a second component
DE102005062546A1 (en) Cylinder head cover has a composite structure comprising a skeleton of high-strength material surrounded by a shell made of a different material
DE10360291A1 (en) roll stabilizer
DE102006007312B4 (en) Housing part with sealing surface and seal for internal combustion engine
EP3122435B1 (en) Polymer filter support with metal sleeve
DE102008016390B4 (en) filtering device
EP2233189B1 (en) Hollow screw
DE10150717A1 (en) Mounting device for an internal combustion engine and assembly method for this purpose
DE8104809U1 (en) One-piece bearing housing made of plastic

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20091216

17Q First examination report despatched

Effective date: 20100202

AKX Designation fees paid

Designated state(s): DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130917

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008011305

Country of ref document: DE

Effective date: 20140327

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008011305

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20141113

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008011305

Country of ref document: DE

Effective date: 20141113

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190528

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190731

Year of fee payment: 12

Ref country code: GB

Payment date: 20190529

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008011305

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200516

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201201