EP2388464B1 - Internal combustion engine and cylinder head cover - Google Patents

Internal combustion engine and cylinder head cover Download PDF

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Publication number
EP2388464B1
EP2388464B1 EP11165945.4A EP11165945A EP2388464B1 EP 2388464 B1 EP2388464 B1 EP 2388464B1 EP 11165945 A EP11165945 A EP 11165945A EP 2388464 B1 EP2388464 B1 EP 2388464B1
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EP
European Patent Office
Prior art keywords
cylinder head
interface
head cover
combustion engine
internal combustion
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EP11165945.4A
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German (de)
French (fr)
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EP2388464A1 (en
Inventor
Ulrich Hütter
Jan Scheffel
Daniel Wirbel
Julian Cojocaru
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Mahle International GmbH
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Mahle International GmbH
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Publication of EP2388464A1 publication Critical patent/EP2388464A1/en
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    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus

Definitions

  • An internal combustion engine designed as a piston engine usually has a cylinder head with a cylinder head interior, which is open at a cylinder head side. To cover the cylinder head interior on the open cylinder head side, a cylinder head cover can be mounted on the cylinder head. In the cylinder head interior, an internal wiring can be laid, with the help of electrical components of the engine, such. B. the fuel injectors, ignition devices for spark-ignition engines or heaters for self-igniting engines or electromagnetic gas exchange valves can be supplied with electrical energy or electrically controlled.
  • the problem now is to electrically connect the inner wiring through the cylinder head cover with an external wiring.
  • a cylinder head cover on the outside of which a plurality of electrical interfaces are integrally formed. Furthermore, electrical lines can be integrated in the wall of the cylinder head cover.
  • the present invention is concerned with the problem of providing for an internal combustion engine or for an associated cylinder head cover an improved embodiment, which is characterized in particular by a simplified assembly. As a result, in particular a maintenance in which the cylinder head cover is removed from the cylinder head to be simplified.
  • the invention is based on the general idea of equipping the cylinder head cover with at least one connecting bridge having an inner connection interface and an outer connection interface electrically connected thereto.
  • the inner connection interface of the connection bridge is designed to be complementary to an internal interface, which is arranged in the cylinder head interior stationary on the cylinder head, which is electrically connected to the internal wiring.
  • the outer connection interface of the connection bridge is configured complementary to an external interface, which is arranged outside of the cylinder head interior, which is arranged stationary relative to the cylinder head and which is electrically connected to an external wiring.
  • the arrangement and configuration of the interfaces and the connection interfaces can now be selectively selected according to an advantageous embodiment so that the mutually complementary interfaces are automatically electrically connected to each other when mounting the cylinder head cover on the cylinder head and automatically disconnected from each other when disassembling the cylinder head cover from the cylinder head.
  • a hood seal which extends between the interfaces, so that the internal interface is disposed within the hood seal, while the external interface is disposed outside of the hood seal.
  • an inner interface seal enclosing the internal interface may be provided between the cylinder head and the cylinder head cover.
  • an external interface seal enclosing the external interface can be provided between the cylinder head and the cylinder head cover.
  • Such an interface seal can be provided in addition to the aforementioned hood seal to seal the respective interface taken by itself. This creates an additional protection of the electrical contacts that are located within the respective interface.
  • the respective interface seal can basically represent a separate component with respect to the hood seal.
  • an embodiment is particularly advantageous wherein at least one of these interface seals is integrally formed on the hood seal. This simplifies assembly, since only one component, namely the hood seal with the respective integrated interface seal must be mounted on the cylinder head cover or on the cylinder head.
  • the connecting bridge with respect to the cylinder head cover may be a separate component which is mounted on the cylinder head cover.
  • the connecting bridge can be fixedly or detachably attached to the cylinder head cover.
  • connection bridge may have a body in which an electrical contact comprising a plurality of electrical contacts is embedded, which electrically connects the connection interfaces to one another.
  • This body of the connecting bridge can now be mounted on the cylinder head cover, fixed or detachable, or be formed by an integral part of the cylinder head cover.
  • the present invention relates not only to the internal combustion engine equipped with such a cylinder head cover and associated dedicated internal and external wiring, but also to a cylinder head cover having at least one connection bridge of the type described above suitable for use in such an internal combustion engine.
  • the cylinder head cover may have an inner through opening through which the internal interface is electrically connectable to the inner connection interface. Additionally or alternatively, the cylinder head cover may have an outer passage opening, through which the external interface with the outer connection interface is electrically contacted.
  • FIGS. 1 to 4 includes an internal combustion engine 1, which is preferably designed as a piston engine and which may be arranged in particular in a motor vehicle, a cylinder head 2 and a cylinder head cover 3.
  • the cylinder head 2 has a cylinder head interior 4, which is open at a cylinder head side.
  • the open cylinder head side is usually at the top.
  • the cylinder head interior 4 is closed or covered with the aid of the cylinder head cover 3 on the open cylinder head side.
  • the cylinder head cover 3 is mounted on the cylinder head 2.
  • the cylinder head cover 3 is now equipped with at least one connecting bridge 10, which has an internal connection interface 11 and an external connection interface 12 and connects to each other electrically.
  • the internal connection interface 11 is designed to be complementary to the internal interface 7, for example as a multi-pole socket or socket or as a multipolar plug.
  • the external connection interface 12 is designed to be complementary to the external interface 9, for example as a multi-pole socket or socket or as a multipolar plug.
  • the connecting bridge 10 has a body 15, in which an electrical contact 16 is embedded, which consists in particular of several electrical wires or wires. With the help of this contact 16, the connection interfaces 11 and 12 of the connecting bridge 10 are electrically connected to each other, so that when mounted connection bridge 10 on each other interacting interfaces 7,9,11,12 the internal wiring 6 is connected to the external wiring 8.
  • the connecting bridge 10 may be a separate component with respect to the cylinder head cover 3.
  • the connecting bridge 10 can then be mounted after mounting the cylinder head cover 3. It can also be fixed or releasably attached to the cylinder head cover 3, so that at the same time with the mounting of the cylinder head cover 3, the connecting bridge 10 is mounted.
  • an integral formation of the connecting bridge 10 on the cylinder head cover 3 is particularly advantageous.
  • the body 15 of the connecting bridge 10 is then an integral part of the cylinder head cover 3.
  • the cylinder head cover 3 is injection molded with the connecting bridge 10 in a common injection molding tool in one piece.
  • the electrical contact 16 forms an insert into the respective injection mold, which is injection-molded by the plastic of the cylinder head cover 3 during injection molding.
  • an embodiment in which the interfaces 7, 9 and the connection interfaces 11, 12 and the connecting bridge 10 are configured and arranged and matched to one another is such that when mounting the cylinder head cover 3 on the cylinder head 2, the interfaces 7, 9 with the connection interfaces 11 , 12 are automatically electrically connected to each other, while these electrical connections between the interfaces 7,9,11,12 are automatically disconnected electrically when disassembling the cylinder head cover 3.
  • a hood seal 17 is arranged between the interfaces 7, 9, such that the internal interface 7 is arranged within the hood seal 17, that is to say on a side facing the cylinder head interior 4, while the external interface 9 is outside the hood seal 17, that is, at one of the cylinder head interior 4 opposite side is arranged.
  • an inner interface seal 18 is also provided which encloses the internal interface 7 and is likewise arranged between the cylinder head 2 and the cylinder head cover 3.
  • the cylinder head cover 3 has a suitable receiving groove 19 into which the inner interface seal 18 is inserted.
  • an outer interface seal 20 is provided which surrounds the external interface 9 and which is inserted here into a further receiving groove 21 which is formed on the cylinder head cover 3.
  • the interface seals 18, 20 are based, for example, axially on an annular collar 22 or 23, which encloses the internal interface 7 or the external interface 9.
  • the hood seal 17 and the interface seals 18,20 are designed as axially acting seals.
  • the interface seals 18,20 are suitably designed annular.
  • the connecting bridge 10 is a respect.
  • the cylinder head cover 3 separate component. So it is also possible, the connecting bridge 10 according to Fig. 3 to assemble to connect the internal wiring 6 to the external wiring 8, even if the cylinder head cover 3 is missing. This can be advantageous for certain investigations of the internal combustion engine 1.
  • the cylinder head cover 3 can, as shown in the figures, via other functional units, such as. an oil filler neck 29 with a lid 30 or a crankcase ventilation 31 or their connections 32, have.

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

Description

Die vorliegende Erfindung betrifft eine Brennkraftmaschine, insbesondere eines Kraftfahrzeuges. Die Erfindung betrifft außerdem eine Zylinderkopfhaube für eine derartige Brennkraftmaschine.The present invention relates to an internal combustion engine, in particular a motor vehicle. The invention also relates to a cylinder head cover for such an internal combustion engine.

Eine als Kolbenmotor ausgestaltete Brennkraftmaschine weist üblicherweise einen Zylinderkopf mit einem Zylinderkopfinnenraum auf, der an einer Zylinderkopfseite offen ist. Zum Abdecken des Zylinderkopfinnenraums an der offenen Zylinderkopfseite ist am Zylinderkopf eine Zylinderkopfhaube montierbar. Im Zylinderkopfinnenraum kann eine interne Verkabelung verlegt sein, mit deren Hilfe elektrische Komponenten der Brennkraftmaschine, wie z. B. die Kraftstoffinjektoren, Zündeinrichtungen für fremdgezündete Motoren oder Heizeinrichtungen für selbstzündende Motoren oder elektromagnetische Gaswechselventile mit elektrischer Energie versorgt bzw. elektrisch angesteuert werden können.An internal combustion engine designed as a piston engine usually has a cylinder head with a cylinder head interior, which is open at a cylinder head side. To cover the cylinder head interior on the open cylinder head side, a cylinder head cover can be mounted on the cylinder head. In the cylinder head interior, an internal wiring can be laid, with the help of electrical components of the engine, such. B. the fuel injectors, ignition devices for spark-ignition engines or heaters for self-igniting engines or electromagnetic gas exchange valves can be supplied with electrical energy or electrically controlled.

Problematisch ist es nun, die innere Verkabelung durch die Zylinderkopfhaube hindurch mit einer externen Verkabelung elektrisch zu verbinden.The problem now is to electrically connect the inner wiring through the cylinder head cover with an external wiring.

Aus der US 5,771,850 ist eine Zylinderkopfhaube bekannt, an deren Außenseite mehrere elektrische Schnittstellen integral ausgeformt sind. Ferner können in die Wandung der Zylinderkopfhaube elektrische Leitungen integriert sein.From the US 5,771,850 is known a cylinder head cover, on the outside of which a plurality of electrical interfaces are integrally formed. Furthermore, electrical lines can be integrated in the wall of the cylinder head cover.

Aus der DE 43 05 684 A1 ist eine Zylinderkopfhaube bekannt, die an ihrer dem Zylinderkopfinnenraum zugewandten Innenseite Stromaufnahmesteckverbinder und Stromzuführungsanschlussklemmen aufweist, derart, dass sie beim Montieren der Zylinderkopfhaube zu Kontaktanschlussklemmen von Zündspulen ausgerichtet sind, sodass sich beim Montieren der Zylinderkopfhaube automatisch eine elektrische Kontaktierung ergibt.From the DE 43 05 684 A1 a cylinder head cover is known, which has on its inside facing the cylinder head interior power receptacle connectors and power supply connection terminals, such that they aligned when mounting the cylinder head cover to contact terminals of ignition coils are so that automatically results in an electrical contact when mounting the cylinder head cover.

Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine Brennkraftmaschine bzw. für eine zugehörige Zylinderkopfhaube eine verbesserte Ausführungsform anzugeben, die sich insbesondere durch eine vereinfachte Montage auszeichnet. Hierdurch soll insbesondere eine Wartung, bei der die Zylinderkopfhaube vom Zylinderkopf entfernt wird, vereinfacht werden.The present invention is concerned with the problem of providing for an internal combustion engine or for an associated cylinder head cover an improved embodiment, which is characterized in particular by a simplified assembly. As a result, in particular a maintenance in which the cylinder head cover is removed from the cylinder head to be simplified.

Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.

Die Erfindung beruht auf dem allgemeinen Gedanken, die Zylinderkopfhaube mit wenigstens einer Verbindungsbrücke auszustatten, die eine innere Verbindungsschnittstelle und eine damit elektrisch verbundene äußere Verbindungsschnittstelle aufweist. Die innere Verbindungsschnittstelle der Verbindungsbrücke ist komplementär zu einer internen Schnittstelle ausgestaltet, die im Zylinderkopfinnenraum ortsfest am Zylinderkopf angeordnet ist, die mit der internen Verkabelung elektrisch verbunden ist. Die äußere Verbindungsschnittstelle der Verbindungsbrücke ist komplementär zu einer externen Schnittstelle ausgestaltet, die außerhalb des Zylinderkopfinnenraums angeordnet ist, die relativ zum Zylinderkopf ortsfest angeordnet ist und die mit einer externen Verkabelung elektrisch verbunden ist. Die Verwendung einer solchen Verbindungsbrücke hat zur Folge, dass die externe Verkabelung und die interne Verkabelung von der Montage und Demontage der Zylinderkopfhaube weitgehend unberührt bleiben, da lediglich die jeweilige Verbindungsbrücke, insbesondere gemeinsam mit der Zylinderkopfhaube, entfernt bzw. angebracht wird.The invention is based on the general idea of equipping the cylinder head cover with at least one connecting bridge having an inner connection interface and an outer connection interface electrically connected thereto. The inner connection interface of the connection bridge is designed to be complementary to an internal interface, which is arranged in the cylinder head interior stationary on the cylinder head, which is electrically connected to the internal wiring. The outer connection interface of the connection bridge is configured complementary to an external interface, which is arranged outside of the cylinder head interior, which is arranged stationary relative to the cylinder head and which is electrically connected to an external wiring. The use of such a connecting bridge has the consequence that the external wiring and the internal wiring of the assembly and disassembly of the cylinder head cover remain largely unaffected, since only the respective connecting bridge, in particular together with the cylinder head cover, removed or attached.

Die Anordnung und Ausgestaltung der Schnittstellen sowie der Verbindungsschnittstellen kann nun entsprechend einer vorteilhaften Ausführungsform gezielt so gewählt werden, dass die zueinander komplementären Schnittstellen beim Montieren der Zylinderkopfhaube am Zylinderkopf automatisch elektrisch miteinander verbunden werden und beim Demontieren der Zylinderkopfhaube vom Zylinderkopf automatisch elektrisch voneinander getrennt werden.The arrangement and configuration of the interfaces and the connection interfaces can now be selectively selected according to an advantageous embodiment so that the mutually complementary interfaces are automatically electrically connected to each other when mounting the cylinder head cover on the cylinder head and automatically disconnected from each other when disassembling the cylinder head cover from the cylinder head.

Durch eine Integration der Verbindungsbrücke in die Zylinderkopfhaube wird einerseits erreicht, dass ein Betrieb der Brennkraftmaschine ohne Zylinderkopfhaube nicht möglich ist. Denn wenn die Zylinderkopfhaube fehlt, fehlt auch die Verbindungsbrücke, sodass die externe Verkabelung nicht mit der internen Verkabelung elektrisch gekoppelt ist. Zum anderen kann die Verbindungsbrücke ohne weiteres so in die Zylinderkopfhaube integriert werden, dass bei montierter Zylinderkopfhaube die innere Verbindungsschnittstelle im Zylinderkopfinnenraum angeordnet ist, während die äußere Verbindungsschnittstelle außerhalb des Zylinderkopfinnenraums angeordnet ist. Insbesondere lässt sich dadurch eine abgedichtete Trennung zwischen Zylinderkopfinnenraum und Umgebung trotz der durch die Zylinderkopfhaube hindurchgeführten elektrischen Verbindung der internen Verkabelung mit der externen Verkabelung realisieren.By integrating the connecting bridge in the cylinder head cover on the one hand ensures that operation of the internal combustion engine without cylinder head cover is not possible. Because if the cylinder head cover is missing, missing the connecting bridge, so that the external wiring is not electrically coupled to the internal wiring. On the other hand, the connecting bridge can be easily integrated into the cylinder head cover such that when the cylinder head cover is mounted, the inner connection interface is arranged in the cylinder head interior, while the outer connection interface is arranged outside of the cylinder head interior. In particular, this makes it possible to realize a sealed separation between the cylinder head interior and surroundings despite the electrical connection of the internal wiring through the cylinder head cover to the external wiring.

Bei einer vorteilhaften Ausführungsform können die Schnittstellen und die Verbindungsschnittstellen je eine elektrische Steckverbindung bilden, wobei die beiden Steckverbindungen zueinander parallele Steckrichtungen besitzen. Die zueinander parallelen Steckrichtungen erleichtern die Montage und Demontage der Zylinderkopfhaube. Dabei können die haubenseitigen Verbindungsschnittstellen der Verbindungsbrücke als Stecker ausgestaltet sein, während die Schnittstellen der Verkabelungen dann als Steckdose bzw. Buchse ausgestaltet sind. Grundsätzlich ist jedoch auch eine umgekehrte Bauweise möglich, bei der die Schnittstellen der Verkabelungen die Stecker bilden und die Verbindungsschnittstellen der Verbindungsbrücke die Steckdosen bzw. Buchsen bilden. Auch ist eine gemischte Bauform denkbar, bei der die eine haubenseitige Verbindungsschnittstelle einen Stecker bildet, während die andere haubenseitige Schnellverbindungsschnittstelle eine Steckdose bzw. eine Buchse bildet. Die Schnittstellen der Verkabelungen sind dann komplementär als Stecker bzw. Steckdose ausgestaltet.In an advantageous embodiment, the interfaces and the connection interfaces can each form an electrical plug connection, wherein the two plug connections have mutually parallel plug-in directions. The parallel plug-in directions facilitate the assembly and disassembly of the cylinder head cover. In this case, the hood-side connection interfaces of the connecting bridge can be designed as a plug, while the interfaces of the wiring are then designed as a socket or socket. Basically, however, a reverse construction is possible in which the interfaces of the wiring form the plug and the connection interfaces the connecting bridge form the sockets or sockets. Also, a mixed construction is conceivable in which the one hood-side connection interface forms a plug, while the other hood-side quick connect interface forms a socket or a socket. The interfaces of the cabling are then designed complementary as a plug or socket.

Entsprechend einer besonders vorteilhaften Ausführungsform kann zwischen Zylinderkopfhaube und Zylinderkopf eine Haubendichtung angeordnet sein, die sich zwischen den Schnittstellen hindurch erstreckt, sodass die interne Schnittstelle innerhalb der Haubendichtung angeordnet ist, während die externe Schnittstelle außerhalb der Haubendichtung angeordnet ist. Durch diese Bauweise wird für den montierten Zustand der Zylinderkopfhaube eine dichte bzw. hermetische Kapselung des Zylinderkopfinnenraums mit Hilfe der Zylinderkopfhaube realisiert, obwohl durch die Zylinderkopfhaube hindurch, nämlich über die jeweilige Verbindungsbrücke, die interne Verkabelung mit der externen Verkabelung elektrisch verbunden ist.According to a particularly advantageous embodiment may be arranged between the cylinder head cover and the cylinder head, a hood seal which extends between the interfaces, so that the internal interface is disposed within the hood seal, while the external interface is disposed outside of the hood seal. By this construction, a tight or hermetic encapsulation of the cylinder head interior using the cylinder head cover is realized for the assembled state of the cylinder head cover, although through the cylinder head cover, namely via the respective connecting bridge, the internal wiring is electrically connected to the external wiring.

Bei einer weiteren vorteilhaften Ausführungsform kann zwischen Zylinderkopf und Zylinderkopfhaube eine die interne Schnittstelle umschließende innere Schnittstellendichtung vorgesehen sein. Zusätzlich oder alternativ kann eine die externe Schnittstelle umschließende äußere Schnittstellendichtung zwischen Zylinderkopf und Zylinderkopfhaube vorgesehen sein. Eine derartige Schnittstellendichtung kann dabei zusätzlich zur vorgenannten Haubendichtung vorgesehen sein, um die jeweilige Schnittstelle für sich genommen abzudichten. Hierdurch entsteht ein zusätzlicher Schutz der elektrischen Kontakte, die sich innerhalb der jeweiligen Schnittstelle befinden.In a further advantageous embodiment, an inner interface seal enclosing the internal interface may be provided between the cylinder head and the cylinder head cover. In addition or as an alternative, an external interface seal enclosing the external interface can be provided between the cylinder head and the cylinder head cover. Such an interface seal can be provided in addition to the aforementioned hood seal to seal the respective interface taken by itself. This creates an additional protection of the electrical contacts that are located within the respective interface.

Die jeweilige Schnittstellendichtung kann grundsätzlich bzgl. der Haubendichtung ein separates Bauteil repräsentieren. Besonders vorteilhaft ist jedoch eine Ausführungsform, bei der zumindest eine dieser Schnittstellendichtungen integral an der Haubendichtung ausgeformt ist. Hierdurch vereinfacht sich die Montage, da nur ein Bauteil, nämlich die Haubendichtung mit der jeweiligen integrierten Schnittstellendichtung an der Zylinderkopfhaube bzw. am Zylinderkopf montiert werden muss.The respective interface seal can basically represent a separate component with respect to the hood seal. However, an embodiment is particularly advantageous wherein at least one of these interface seals is integrally formed on the hood seal. This simplifies assembly, since only one component, namely the hood seal with the respective integrated interface seal must be mounted on the cylinder head cover or on the cylinder head.

Gemäß einer anderen Ausführungsform kann die Verbindungsbrücke bzgl. der Zylinderkopfhaube ein separates Bauteil sein, das an die Zylinderkopfhaube angebaut ist. Dabei kann die Verbindungsbrücke fest oder lösbar an der Zylinderkopfhaube angebracht sein. Bevorzugt wird jedoch eine alternative Ausführungsform, bei welcher die Verbindungsbrücke integral an der Zylinderkopfhaube ausgeformt ist.According to another embodiment, the connecting bridge with respect to the cylinder head cover may be a separate component which is mounted on the cylinder head cover. In this case, the connecting bridge can be fixedly or detachably attached to the cylinder head cover. However, preference is given to an alternative embodiment in which the connecting bridge is integrally formed on the cylinder head cover.

Allgemein kann die Verbindungsbrücke einen Körper aufweisen, in den eine mehrere elektrische Kontakte umfassende elektrische Kontaktierung eingebettet ist, welche die Verbindungsschnittstellen elektrisch miteinander verbindet. Dieser Körper der Verbindungsbrücke kann nun an die Zylinderkopfhaube angebaut sein, fest oder lösbar, oder durch einen integralen Bestandteil der Zylinderkopfhaube geformt sein. Bspw. lässt sich die elektrische Kontaktierung beim Spritzformen des Körpers der Verbindungsbrücke bzw. der Zylinderkopfhaube aus Kunststoff im Spritzformwerkzeug so positionieren, dass sich die gewünschte Einbettung für die Kontaktierung ergibt.In general, the connection bridge may have a body in which an electrical contact comprising a plurality of electrical contacts is embedded, which electrically connects the connection interfaces to one another. This body of the connecting bridge can now be mounted on the cylinder head cover, fixed or detachable, or be formed by an integral part of the cylinder head cover. For example. can the electrical contact during injection molding of the body of the connecting bridge or the cylinder head cover made of plastic in the injection mold position so that there is the desired embedding for contacting.

Die vorliegende Erfindung betrifft nicht nur die mit einer derartigen Zylinderkopfhaube und der zugehörigen speziell angeordneten internen und externen Verkabelung ausgestattete Brennkraftmaschine, sondern auch eine Zylinderkopfhaube mit zumindest einer Verbindungsbrücke der vorbeschriebenen Art, die sich für eine Verwendung bei einer solchen Brennkraftmaschine eignet.The present invention relates not only to the internal combustion engine equipped with such a cylinder head cover and associated dedicated internal and external wiring, but also to a cylinder head cover having at least one connection bridge of the type described above suitable for use in such an internal combustion engine.

Die Zylinderkopfhaube kann optional eine innere Durchgangsöffnung aufweisen, durch die hindurch die interne Schnittstelle mit der inneren Verbindungsschnittstelle elektrisch verbindbar ist. Zusätzlich oder alternativ kann die Zylinderkopfhaube eine äußere Durchgangsöffnung aufweisen, durch die hindurch die externe Schnittstelle mit der äußeren Verbindungsschnittstelle elektrisch kontaktierbar ist.Optionally, the cylinder head cover may have an inner through opening through which the internal interface is electrically connectable to the inner connection interface. Additionally or alternatively, the cylinder head cover may have an outer passage opening, through which the external interface with the outer connection interface is electrically contacted.

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 Schnittansicht einer Brennkraftmaschine mit Zylinderkopfhaube im Bereich einer Verbindungsbrücke,
Fig. 2
eine isometrische Explosionsdarstellung der Brennkraftmaschine im Bereich eines Zylinderkopfs,
Fig. 3
eine isometrische Ansicht des Zylinderkopfs bei fehlender Zylinderkopfhaube und bei angebrachter Verbindungsbrücke,
Fig. 4
eine isometrische Ansicht des Zylinderkopfs bei montierter Zylinderkopfhaube und angebrachter Verbindungsbrücke.
Show, in each case schematically,
Fig. 1
a sectional view of an internal combustion engine with a cylinder head cover in the region of a connecting bridge,
Fig. 2
an isometric exploded view of the internal combustion engine in the region of a cylinder head,
Fig. 3
an isometric view of the cylinder head in the absence of cylinder head cover and with attached connecting bridge,
Fig. 4
an isometric view of the cylinder head with mounted cylinder head cover and attached connecting bridge.

Entsprechend den Figuren 1 bis 4 umfasst eine Brennkraftmaschine 1, die bevorzugt als Kolbenmotor ausgestaltet ist und die insbesondere in einem Kraftfahrzeug angeordnet sein kann, einen Zylinderkopf 2 und eine Zylinderkopfhaube 3. Der Zylinderkopf 2 besitzt einen Zylinderkopfinnenraum 4, der an einer Zylinderkopfseite offen ist. Die offene Zylinderkopfseite befindet sich üblicherweise oben. Der Zylinderkopfinnenraum 4 ist mit Hilfe der Zylinderkopfhaube 3 an der offenen Zylinderkopfseite verschlossen bzw. abgedeckt. Hierzu ist die Zylinderkopfhaube 3 am Zylinderkopf 2 montiert. Für die Befestigung der Zylinderkopfhaube 3 amAccording to the FIGS. 1 to 4 includes an internal combustion engine 1, which is preferably designed as a piston engine and which may be arranged in particular in a motor vehicle, a cylinder head 2 and a cylinder head cover 3. The cylinder head 2 has a cylinder head interior 4, which is open at a cylinder head side. The open cylinder head side is usually at the top. The cylinder head interior 4 is closed or covered with the aid of the cylinder head cover 3 on the open cylinder head side. For this purpose, the cylinder head cover 3 is mounted on the cylinder head 2. For fixing the cylinder head cover 3 am

Zylinderkopf 2 können mehrere Schrauben 5 verwendet werden.Cylinder head 2, a plurality of screws 5 can be used.

Im Zylinderkopfinnenraum 4 ist eine interne Verkabelung 6 verlegt, mit deren Hilfe hier nicht dargestellte elektrische Komponenten mit elektrischer Energie versorgt und/oder elektrisch angesteuert werden können. Derartige Komponenten sind bspw. Kraftstoffinjektoren sowie Zündeinrichtungen oder Heizeinrichtungen. Ebenso sind moderne Brennkraftmaschinen 1 bekannt, die elektromagnetisch betätigte Gaswechselventile aufweisen. Diese interne Verkabelung 6 weist zumindest eine elektrische interne Schnittstelle 7 auf, z. B. in Form eines mehrpoligen Steckers oder in Form einer mehrpoligen Steckdose oder Buchse. Diese interne Schnittstelle 7 ist dabei ebenfalls im Zylinderkopfinnenraum 4 ortsfest am Zylinderkopf 2 angeordnet. Hierzu kann die interne Schnittstelle 7 lösbar oder unlösbar mit dem Zylinderkopf 2 verbunden, insbesondere verklebt, verklemmt oder verschraubt sein.In the cylinder head interior 4, an internal wiring 6 is laid, with the aid of which electrical components, not shown here, can be supplied with electrical energy and / or electrically controlled. Such components are, for example, fuel injectors and ignition devices or heaters. Likewise, modern internal combustion engines 1 are known which have electromagnetically actuated gas exchange valves. This internal wiring 6 has at least one electrical internal interface 7, z. B. in the form of a multi-pin plug or in the form of a multi-pin socket or socket. This internal interface 7 is also arranged in the cylinder head interior 4 stationary on the cylinder head 2. For this purpose, the internal interface 7 can be detachably or non-detachably connected to the cylinder head 2, in particular adhesively bonded, clamped or screwed.

Ferner ist eine externe Verkabelung 8 vorgesehen, die bspw. an ein elektrisches Netz der Brennkraftmaschine 1 angeschlossen ist bzw. ein derartiges elektrisches Netz der Brennkraftmaschine 1 bildet. Bei einem Kraftfahrzeug handelt es sich bei der externen Verkabelung 8 bspw. um einen Zweig eines elektrischen Bordnetzes. Die externe Verkabelung 8 besitzt zumindest eine elektrische externe Schnittstelle 9, z. B. in Form eines mehrpoligen Steckers oder in Form einer mehrpoligen Steckdose oder Buchse. Diese externe Schnittstelle 9 ist dabei relativ zum Zylinderkopf 2 ortsfest angeordnet. Hierbei kann die externe Schnittstelle 9 ebenfalls lösbar oder unlösbar mit dem Zylinderkopf 2 verbunden, insbesondere verklebt, verklemmt oder verschraubt sein. Außerdem ist sie außerhalb desFurthermore, an external wiring 8 is provided which, for example, is connected to an electrical network of the internal combustion engine 1 or forms such an electrical network of the internal combustion engine 1. In a motor vehicle it is at the external wiring 8, for example, to a branch of an electrical system. The external wiring 8 has at least one electrical external interface 9, z. B. in the form of a multi-pin plug or in the form of a multi-pin socket or socket. This external interface 9 is arranged stationary relative to the cylinder head 2. In this case, the external interface 9 can also be detachably or non-detachably connected to the cylinder head 2, in particular adhesively bonded, clamped or screwed. Besides, she is outside of

Zylinderkopfinnenraums 4 angeordnet.Cylinder head interior 4 arranged.

Die Zylinderkopfhaube 3 ist nun mit wenigstens einer Verbindungsbrücke 10 ausgestattet, die eine interne Verbindungsschnittstelle 11 und eine externe Verbindungsschnittstelle 12 aufweist und elektrisch miteinander verbindet. Die interne Verbindungsschnittstelle 11 ist komplementär zur internen Schnittstelle 7 ausgestaltet, bspw. als mehrpolige Steckdose oder Buchse oder als mehrpoliger Stecker. Die äußere Verbindungsschnittstelle 12 ist komplementär zur externen Schnittstelle 9 ausgestaltet, bspw. als mehrpolige Steckdose oder Buchse oder als mehrpoliger Stecker.The cylinder head cover 3 is now equipped with at least one connecting bridge 10, which has an internal connection interface 11 and an external connection interface 12 and connects to each other electrically. The internal connection interface 11 is designed to be complementary to the internal interface 7, for example as a multi-pole socket or socket or as a multipolar plug. The external connection interface 12 is designed to be complementary to the external interface 9, for example as a multi-pole socket or socket or as a multipolar plug.

Zweckmäßig bilden die Schnittstellen 7,9 mit den zugehörigen Verbindungsschnittstellen 11,12 jeweils eine elektrische Steckverbindung, deren Steckrichtungen in Fig. 1 jeweils durch einen Doppelpfeil 13 bzw. 14 angedeutet ist. Zweckmäßig verlaufen diese Steckrichtungen 13,14 der beiden Steckverbindungen 7-11 bzw. 9-12 parallel zueinander.Expediently, the interfaces 7, 9 with the associated connection interfaces 11, 12 each form an electrical plug connection whose plug-in directions are in Fig. 1 each indicated by a double arrow 13 and 14, respectively. Suitably, these plug-in directions 13,14 of the two connectors 7-11 and 9-12 are parallel to each other.

Die Verbindungsbrücke 10 weist einen Körper 15 auf, in den eine elektrische Kontaktierung 16 eingebettet ist, die insbesondere aus mehreren elektrischen Leitungen oder Adern besteht. Mit Hilfe dieser Kontaktierung 16 sind die Verbindungsschnittstellen 11 und 12 der Verbindungsbrücke 10 miteinander elektrisch verbunden, sodass bei montierter Verbindungsbrücke 10 über die miteinander zusammenwirkenden Schnittstellen 7,9,11,12 die interne Verkabelung 6 an die externe Verkabelung 8 angeschlossen ist.The connecting bridge 10 has a body 15, in which an electrical contact 16 is embedded, which consists in particular of several electrical wires or wires. With the help of this contact 16, the connection interfaces 11 and 12 of the connecting bridge 10 are electrically connected to each other, so that when mounted connection bridge 10 on each other interacting interfaces 7,9,11,12 the internal wiring 6 is connected to the external wiring 8.

Die Verbindungsbrücke 10 kann bzgl. der Zylinderkopfhaube 3 ein separates Bauteil sein. Die Verbindungsbrücke 10 kann dann nach dem Montieren der Zylinderkopfhaube 3 montiert werden. Sie kann auch fest oder lösbar an der Zylinderkopfhaube 3 befestigt sein, sodass mit dem Montieren der Zylinderkopfhaube 3 gleichzeitig auch die Verbindungsbrücke 10 montiert wird. Besonders vorteilhaft ist jedoch eine integrale Ausformung der Verbindungsbrücke 10 an der Zylinderkopfhaube 3. Der Körper 15 der Verbindungsbrücke 10 ist dann integraler Bestandteil der Zylinderkopfhaube 3. Bspw. wird die Zylinderkopfhaube 3 mit der Verbindungsbrücke 10 in einem gemeinsamen Spritzgusswerkzeug aus einem Stück spritzgeformt. Die elektrische Kontaktierung 16 bildet dabei einen Einleger in die jeweilige Spritzform, der beim Spritzformen vom Kunststoff der Zylinderkopfhaube 3 umspritzt wird.The connecting bridge 10 may be a separate component with respect to the cylinder head cover 3. The connecting bridge 10 can then be mounted after mounting the cylinder head cover 3. It can also be fixed or releasably attached to the cylinder head cover 3, so that at the same time with the mounting of the cylinder head cover 3, the connecting bridge 10 is mounted. However, an integral formation of the connecting bridge 10 on the cylinder head cover 3 is particularly advantageous. The body 15 of the connecting bridge 10 is then an integral part of the cylinder head cover 3. For example. the cylinder head cover 3 is injection molded with the connecting bridge 10 in a common injection molding tool in one piece. The electrical contact 16 forms an insert into the respective injection mold, which is injection-molded by the plastic of the cylinder head cover 3 during injection molding.

Bevorzugt wird somit eine Ausführungsform, bei der die Schnittstellen 7,9 und die Verbindungsschnittstellen 11,12 sowie die Verbindungsbrücke 10 so ausgestaltet und angeordnet sowie aufeinander abgestimmt sind, dass beim Montieren der Zylinderkopfhaube 3 am Zylinderkopf 2 die Schnittstellen 7,9 mit den Verbindungsschnittstellen 11,12 automatisch elektrisch miteinander verbunden werden, während diese elektrischen Verbindungen zwischen den Schnittstellen 7,9,11,12 beim Demontieren der Zylinderkopfhaube 3 automatisch elektrisch getrennt werden.Thus, an embodiment in which the interfaces 7, 9 and the connection interfaces 11, 12 and the connecting bridge 10 are configured and arranged and matched to one another is such that when mounting the cylinder head cover 3 on the cylinder head 2, the interfaces 7, 9 with the connection interfaces 11 , 12 are automatically electrically connected to each other, while these electrical connections between the interfaces 7,9,11,12 are automatically disconnected electrically when disassembling the cylinder head cover 3.

Zwischen der Zylinderkopfhaube 3 und dem Zylinderkopf 2 ist zweckmäßig eine Haubendichtung 17 angeordnet. Diese bildet bzgl. Zylinderkopf 2 und Zylinderkopfhaube 3 ein separates Bauteil und ist bspw. in eine entsprechende Aufnahmenut 18 eingesetzt, die hierzu an der Zylinderkopfhaube 3 ausgebildet ist. Die Haubendichtung 17 erstreckt sich zwischen den Schnittstellen 7,9 hindurch, derart, dass die interne Schnittstelle 7 innerhalb der Haubendichtung 17, also an einer dem Zylinderkopfinnenraum 4 zugewandten Seite angeordnet ist, während die externe Schnittstelle 9 außerhalb der Haubendichtung 17, also an einer vom Zylinderkopfinnenraum 4 abgewandten Seite angeordnet ist.Between the cylinder head cover 3 and the cylinder head 2 expedient a hood seal 17 is arranged. This forms a separate component with respect to the cylinder head 2 and the cylinder head cover 3 and is used, for example, in a corresponding receiving groove 18, which is designed for this purpose on the cylinder head cover 3. The Cap seal 17 extends between the interfaces 7, 9, such that the internal interface 7 is arranged within the hood seal 17, that is to say on a side facing the cylinder head interior 4, while the external interface 9 is outside the hood seal 17, that is, at one of the cylinder head interior 4 opposite side is arranged.

Im gezeigten Beispiel ist außerdem eine innere Schnittstellendichtung 18 vorgesehen, welche die interne Schnittstelle 7 umschließt und dabei ebenfalls zwischen Zylinderkopf 2 und Zylinderkopfhaube 3 angeordnet ist. Im Beispiel besitzt die Zylinderkopfhaube 3 eine geeignete Aufnahmenut 19, in welche die innere Schnittstellendichtung 18 eingesetzt ist. Zusätzlich ist im gezeigten Beispiel auch eine äußere Schnittstellendichtung 20 vorgesehen, welche die externe Schnittstelle 9 umschließt und die hier in eine weitere Aufnahmenut 21 eingesetzt ist, die an der Zylinderkopfhaube 3 ausgebildet ist. Die Schnittstellendichtungen 18,20 stützen sich bspw. an einem Ringkragen 22 bzw. 23 axial ab, der die interne Schnittstelle 7 bzw. die externe Schnittstelle 9 umschließt. Die Haubendichtung 17 und die Schnittstellendichtungen 18,20 sind als axial wirkende Dichtungen ausgestaltet. Die Schnittstellendichtungen 18,20 sind zweckmäßig ringförmig gestaltet.In the example shown, an inner interface seal 18 is also provided which encloses the internal interface 7 and is likewise arranged between the cylinder head 2 and the cylinder head cover 3. In the example, the cylinder head cover 3 has a suitable receiving groove 19 into which the inner interface seal 18 is inserted. In addition, in the example shown, an outer interface seal 20 is provided which surrounds the external interface 9 and which is inserted here into a further receiving groove 21 which is formed on the cylinder head cover 3. The interface seals 18, 20 are based, for example, axially on an annular collar 22 or 23, which encloses the internal interface 7 or the external interface 9. The hood seal 17 and the interface seals 18,20 are designed as axially acting seals. The interface seals 18,20 are suitably designed annular.

Besonders vorteilhaft ist die hier gezeigte Ausführungsform, bei welcher die beiden Schnittstellendichtungen 18,19 integral an der Haubendichtung 17 ausgeformt sind. Im Bereich der Verbindungsbrücke 10 ist in Fig. 1 jeweils ein Verbindungssteg 24 bzw. 25 erkennbar, der die Haubendichtung 17 mit der jeweiligen Schnittstellendichtung 18,20 verbindet.Particularly advantageous is the embodiment shown here, in which the two interface seals 18, 19 are formed integrally on the hood seal 17. In the area of the connecting bridge 10 is in Fig. 1 in each case a connecting web 24 or 25 recognizable, which connects the hood seal 17 with the respective interface seal 18,20.

Wichtig ist auch für die Ausführungsform, bei der die Verbindungsbrücke 10 bzgl. der Zylinderkopfhaube 3 ein separates Bauteil bildet, unabhängig davon, ob die separate Verbindungsbrücke 10 fest oder lösbar an der Zylinderkopfhaube 3 angebracht ist, dass die Zylinderkopfhaube 3 im Bereich der Verbindungsbrücke 10 einen Steg 26 aufweist, der sich zwischen der internen Schnittstelle 7 und der externen Schnittstelle 9 hindurch erstreckt und der in diesem Bereich die Haubendichtung 17 aufnimmt. Bei fehlender Verbindungsbrücke 10 ergibt sich somit bei montierter Zylinderkopfhaube 3 ein vollständig verschlossener Zylinderkopfinnenraum 4, abgesehen von einer inneren Durchgangsöffnung 27, durch welche die Steckverbindung zwischen interner Schnittstelle 7 und innerer Verbindungsschnittstelle 11 realisiert wird. Diese innere Durchgangsöffnung 27 wird jedoch durch die innere Schnittstellendichtung 18 nach außen abgedichtet. Ferner besitzt die Zylinderkopfhaube 3 eine äußere Durchgangsöffnung 28, durch die hindurch die Steckverbindung zwischen externer Schnittstelle 9 und äußerer Verbindungsschnittstelle 12 realisiert wird. Auch hier erfolgt eine effektive Abdichtung mit Hilfe der äußeren Schnittstellendichtung 20.It is also important for the embodiment in which the connecting bridge 10 with respect. The cylinder head cover 3 forms a separate component, regardless of whether the separate connecting bridge 10 fixed or detachably attached to the cylinder head cover 3 is that the cylinder head cover 3 in the region of the connecting bridge 10 has a web 26 which extends between the internal interface 7 and the external interface 9 and which receives the hood seal 17 in this area. If the connecting bridge 10 is missing, a completely sealed cylinder head interior 4 thus results when the cylinder head cover 3 is mounted, apart from an inner passage opening 27 through which the plug connection between the internal interface 7 and the inner connection interface 11 is realized. However, this inner through hole 27 is sealed by the inner interface seal 18 to the outside. Furthermore, the cylinder head cover 3 has an outer passage opening 28, through which the plug connection between the external interface 9 and the external connection interface 12 is realized. Again, there is an effective seal using the outer interface seal 20th

Bei der in den Figuren 2 bis 4 gezeigten Ausführungsform ist die Verbindungsbrücke 10 ein bzgl. der Zylinderkopfhaube 3 separates Bauteil. So besteht auch die Möglichkeit, die Verbindungsbrücke 10 gemäß Fig. 3 zu montieren, um die interne Verkabelung 6 an die externe Verkabelung 8 anzuschließen, auch wenn die Zylinderkopfhaube 3 fehlt. Dies kann für bestimmte Untersuchungen der Brennkraftmaschine 1 vorteilhaft sein.In the in the FIGS. 2 to 4 embodiment shown, the connecting bridge 10 is a respect. The cylinder head cover 3 separate component. So it is also possible, the connecting bridge 10 according to Fig. 3 to assemble to connect the internal wiring 6 to the external wiring 8, even if the cylinder head cover 3 is missing. This can be advantageous for certain investigations of the internal combustion engine 1.

Die Zylinderkopfhaube 3 kann, wie in den Figuren dargestellt, über weitere Funktionseinheiten, wie z.B. einen Öleinfüllstutzen 29 mit Deckel 30 oder eine Kurbelgehäuseentlüftung 31 bzw. deren Anschlüsse 32, verfügen.The cylinder head cover 3 can, as shown in the figures, via other functional units, such as. an oil filler neck 29 with a lid 30 or a crankcase ventilation 31 or their connections 32, have.

Claims (11)

  1. Internal combustion engine, in particular of a motor vehicle,
    - with a cylinder head (2), which has an open cylinder head interior (4) on a cylinder head side,
    - with a cylinder head cover (3) which is able to be mounted on the cylinder head (2) for covering the cylinder head interior (4) at the open cylinder head side,
    - with an internal wiring (6), laid in the cylinder head interior (4), for the electrical energy supply and/or electrical activation of electrical components of the internal combustion engine (1),
    - wherein the internal wiring (6) has at least one electrical internal interface (7), which is arranged fixedly on the cylinder head (2) in the cylinder head interior (4),
    - wherein at least one connecting bridge (10) is provided, which has an inner connecting interface (11), which is configured in a complementary manner to the internal interface (7), and an outer connecting interface (12) connected electrically therewith, which is configured in a complementary manner to an electrical external interface (9) of an external wiring (8), arranged outside the cylinder head interior (4),
    characterized in that
    - the external interface (9) is arranged fixedly relative to the cylinder head (2),
    - the interfaces (7, 9), the connecting interfaces (11, 12) and the connecting bridge (10) are configured and arranged and coordinated with each other so that they are automatically electrically connected with each other on mounting of the cylinder head cover (3) on the cylinder head (2) and are automatically electrically separated on dismantling of the cylinder head cover (3) from the cylinder head (2).
  2. Internal combustion engine according to Claim 1,
    characterized in that
    the interfaces (7, 9) and the connecting interfaces (11, 12) each form an electrical plug connection, wherein the two plug connections have plug-in directions (13, 14) which are parallel to each other.
  3. Internal combustion engine according to Claim 1 or 2,
    characterized in that
    - the plug connection between the internal interface (7) and the inner connecting interface (11) takes place through an inner through hole (27) formed at the cylinder head cover (3),
    - the plug connection between the external interface (9) and the outer connecting interface (12) takes place through an outer through hole (27) formed at the cylinder head cover (3).
  4. Internal combustion engine according to one of Claims 1 to 3,
    characterized in that
    between the cylinder head (2) and cylinder head cover (3) a cover seal (17) is arranged, which extends through between the interfaces (7, 9), so that the internal interface (7) is arranged inside the cover seal (17), whilst the external interface (9) is arranged outside the cover seal (17).
  5. Internal combustion engine according to Claim 4,
    characterized in that
    the cylinder head cover (3) has a web (26) in the region of the connecting bridge (10), which extends through between the internal interface (7) and the external interface (9) and which receives the cover seal (17) in this region.
  6. Internal combustion engine according to one of Claims 1 to 5,
    characterized in that
    an inner interface seal (18) surrounding the internal interface (7) and/or an outer interface seal (20) surrounding the external interface (9) is/are provided.
  7. Internal combustion engine according to one of Claims 4 to 6,
    characterized in that
    at least one such interface seal (18, 20) is formed integrally on the cover seal (17).
  8. Internal combustion engine according to one of Claims 1 to 7,
    characterized in that
    the connecting bridge (10) is a separate component with respect to the cylinder head cover (3), wherein in particular provision may be made that the connecting bridge (10) is applied fixedly or detachably on the cylinder head cover (3).
  9. Internal combustion engine according to one of Claims 1 to 7,
    characterized in that
    the connecting bridge (10) is formed integrally on the cylinder head cover (3).
  10. Internal combustion engine according to one of Claims 1 to 9,
    characterized in that
    an electrical contacting (16) is embedded into a body (15) of the connecting bridge (10), which connects the connecting interfaces (11, 12) electrically with each other.
  11. Cylinder head cover for an internal combustion engine (1), in particular according to one of Claims 1 to 10, for covering a cylinder head interior (4) of a cylinder head (2), with at least one connecting bridge (10), which has an electrical inner connecting interface (11), which is configured in a complementary manner to an electrical internal interface (7) of an internal wiring (6) constructed in the cylinder head interior (4), and an electrical outer connecting interface (12) connected electrically therewith, which is configured in a complementary manner to an electrical interface (9) of an external wiring (8) arranged outside the cylinder head interior (4),
    characterized in that
    the interfaces (7, 9), the connecting interfaces (11, 12) and the connecting bridge (10) are configured and arranged and coordinated with each other so that on mounting of the cylinder head cover (3) on the cylinder head (2), the interfaces (7, 9, 11, 12) are automatically connected with each other electrically, and are automatically separated from each other electrically on dismantling of the cylinder head cover (3) from the cylinder head (2).
EP11165945.4A 2010-05-19 2011-05-13 Internal combustion engine and cylinder head cover Active EP2388464B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010020982A DE102010020982A1 (en) 2010-05-19 2010-05-19 Internal combustion engine and cylinder head cover

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EP2388464A1 EP2388464A1 (en) 2011-11-23
EP2388464B1 true EP2388464B1 (en) 2013-04-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3038029B1 (en) * 2015-06-23 2017-12-29 Renault Sas DEVICE FOR FASTENING AT LEAST ONE ELECTRICAL BEAM ON A CARTER
USD931763S1 (en) * 2020-02-25 2021-09-28 Ciro Corporation Pair of motorcycle engine cylinder head covers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742332B2 (en) 1977-09-20 1981-03-19 Heinz-Theo Dipl.-Ing. 5300 Bonn Walbröhl Method for controlling the propulsion device of a knife shield as well as a knife shield propulsion device and a propulsion knife for carrying out such a method
US5003958A (en) * 1988-12-27 1991-04-02 Nissan Motor Co., Ltd. Ignition coil mounting structure for engine
JPH03260335A (en) * 1990-03-08 1991-11-20 Nippondenso Co Ltd Wiring of engine control system
US5035637A (en) * 1990-05-04 1991-07-30 Navistar International Transportation Corp. Engine valve cover gasket with electrical bridge
JP2700115B2 (en) * 1992-02-26 1998-01-19 矢崎総業株式会社 Electrical wiring method for engine mounting parts
DE29603254U1 (en) * 1996-02-23 1997-07-17 Robert Bosch Gmbh, 70469 Stuttgart Cylinder head cover of an internal combustion engine
JPH09317556A (en) 1996-05-23 1997-12-09 Toyota Motor Corp Cylinder head cover
JP2000274256A (en) * 1999-03-23 2000-10-03 Isuzu Motors Ltd Injector harness wiring device for engine
EP1310657B1 (en) * 2001-11-13 2007-09-26 Perkins Engines Company Limited Cylinder head cover assembly having electrical connection
JP4327704B2 (en) * 2004-11-24 2009-09-09 トヨタ自動車株式会社 Cylinder head cover
JP4253635B2 (en) * 2004-11-30 2009-04-15 トヨタ自動車株式会社 Cylinder head cover

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EP2388464A1 (en) 2011-11-23
US20110290210A1 (en) 2011-12-01
DE102010020982A1 (en) 2011-11-24

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