EP1527274B1 - Internal combustion engine comprising a connecting means for connecting a first section of a wire harness on a cylinder head housing to a second section of the same - Google Patents

Internal combustion engine comprising a connecting means for connecting a first section of a wire harness on a cylinder head housing to a second section of the same Download PDF

Info

Publication number
EP1527274B1
EP1527274B1 EP03790862A EP03790862A EP1527274B1 EP 1527274 B1 EP1527274 B1 EP 1527274B1 EP 03790862 A EP03790862 A EP 03790862A EP 03790862 A EP03790862 A EP 03790862A EP 1527274 B1 EP1527274 B1 EP 1527274B1
Authority
EP
European Patent Office
Prior art keywords
section
clamp carrier
wiring harness
clamp
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP03790862A
Other languages
German (de)
French (fr)
Other versions
EP1527274A1 (en
Inventor
Oscar Blasco Barrena
Walter Hanning
Dietmar Lutze
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen 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 MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP1527274A1 publication Critical patent/EP1527274A1/en
Application granted granted Critical
Publication of EP1527274B1 publication Critical patent/EP1527274B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • 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

  • the invention relates to an internal combustion engine having a connecting means for connecting a first to a second portion of a wire harness to a cylinder head housing according to the preamble of claim 1 and a method for installation according to the preamble of claim 7.
  • the fuel is injected through an injector into the combustion chamber.
  • an electronic control unit determines the switching state of the injector via corresponding control signals.
  • the signal transmission takes place via a cable harness. Since the injector is disposed within the cylinder head housing, the wiring harness must be passed through the cylinder head housing. This implementation is critical, since the cylinder head housing must be against the environment lubricant and fuel-tight. Due to the engine vibrations, the cable harness is additionally exposed to a mechanical stress on the implementation.
  • EP 0 454 895 B1 shows a leadthrough for a cable harness on a cylinder head.
  • the wiring harness is fused into a gasket which is placed between the cylinder head and the hood.
  • the wires of the wiring harness are pushed through holes in the seal. The problem here is the possible mechanical damage to the wiring harness due to high torque when mounting the hood on the cylinder head.
  • DE 197 34 970 A1 shows a central plug, which is bolted to the cylinder head housing of the internal combustion engine.
  • the wiring harness from the electronic control unit to the injector consists of a first and second section.
  • the first section extends from the electronic control unit to a mating connector.
  • the second portion of the wiring harness extends inside the cylinder head housing from the center plug to the injector.
  • the central plug closes the cylinder head in a lubricant-tight and fuel-tight manner via a seal.
  • An internal combustion engine according to the preamble of claim 1 is known from the document US 6 189 511 A.
  • the invention is based on the object for the interface harness / cylinder head housing to provide a connection means which is inexpensive, easy to install and tight.
  • the connecting means comprises a clamping carrier and a hood and both the clamping carrier and the hood have means for self-locking.
  • the hood of the self-locking is realized via a locking ring or latch.
  • clamping support the self-locking is carried out via locking lugs.
  • the clamp carrier is fixed in the assembled state on the cylinder head housing by the locking lugs engage behind the cylinder head housing and seals to the interior. Thereafter, the hood is fixed on the clamp carrier on the locking ring or latch. To attach the clamp carrier and the hood no further steps are necessary. Likewise accounts for additional Befest Trentsmittet, such as screws and holes.
  • the connecting means is designed for the predicted life of a large diesel engine, d. H.
  • the lanyard is vibration stable for this period.
  • each terminal consists of a compression spring and a busbar.
  • the busbar of the second portion of the wiring harness is permanently connected, for example by soldering or crimping.
  • the second section of the cable harness is encapsulated in the terminal carrier. This guarantees the tightness and vibration stability.
  • the wires of the first section of the wiring harness become held between the compression spring and the busbar due to the spring force.
  • the advantage of this arrangement is that the mating connector is omitted at the end of the first section of the wiring harness. For attaching the first portion of the wiring harness to the terminal support only a screwdriver is required.
  • the clamping action of the compression spring ensures a consistent clamping effect even under vibration load and a constant contact resistance between the wires of the first section of the wiring harness and the busbar.
  • a conventional screw-clamp connection eliminates the tightening of the screw. As is known, occurs in such a connection, a flow of copper and setting the screw.
  • FIG. 1 the lower half of a cylinder head housing 2 is shown on a crankcase 1 of the internal combustion engine.
  • an injector 3 and a valve drive 24 are arranged in the cylinder head housing 2.
  • Via a high pressure line 22 is the injector. 3 supplied pressurized fuel, for example, from a high-pressure accumulator of a common rail system.
  • the switching state of the injector 3 is determined via an electronic control unit 6 (EDC).
  • EDC electronice control unit
  • the signal transmission takes place via a cable harness. This consists of a first section 4 and a second section 5.
  • the first section 4 of the wiring harness extends from the electronic control unit 6 to the connecting means 7.
  • the connecting means 7 represents the interface harness / cylinder head housing.
  • the second section 5 of the wiring harness extends in the interior of the cylinder head housing 2 from the connecting means 7 to the injector 3.
  • the end of the second section 5 facing away from the connecting means 7 is connected to the injector 3 via a plug contact 23.
  • the connecting means 7 is shown prior to final assembly. In this case, a clamp support 8 is already in the fixed state on the cylinder head housing 2.
  • the hood 9 and the first section 4 of the wiring harness is shown with stripped wires.
  • FIGS. 2 and 3 show the connecting means 7 in a first embodiment as a single part representation and Figure 3 as an assembly diagram.
  • the connecting means 7 is composed of the following components: a hood 9, clamps 16, cover 19, clamp support 8 and a corrugated tube 21.
  • the corrugated tube 21, the cores of the wiring harness are protected against mechanical damage due to the vibrations
  • the hood 9 consists of the I-shaped hood parts 9A and 9B. These are hinged together via a plastic hinge. Each hood part carries inside a portion of a locking ring 11, reference numerals 11A and 11B. This locking ring 11 engages in a groove 12 of the clamping carrier 8, see FIG. 3. By means of this groove-ring arrangement, the hood 9 can be rotated by 360 degrees on the clamping body 8. In this way, the advantage is achieved that the hood 9 with the attached corrugated hose 21 can take any angular position after attaching the connecting means 7 on the cylinder head.
  • Two clamps 16 are arranged in corresponding recesses of the clamp carrier 8. Each clamp 16 comprises a compression spring 17 and a bus bar 18.
  • the mounting of the clamps 16 takes place in a corresponding contour on the upper side of the clamp carrier 8 and the cover 19.
  • the cover 19 in two parts, reference numerals 19A and 19B.
  • On a main body 25 of the clamp carrier 8 a plurality of webs 26 are arranged integrally with locking lugs 15.
  • About the locking lugs 15 of the terminal carrier 8 engages behind the wall of the cylinder head housing 2 after assembly.
  • About the locking lugs 15 so the self-locking of the clamp carrier 8 takes place to seal the clamp carrier 8 relative to the cylinder head housing 2, a groove 20 for receiving an O-ring is provided.
  • the busbar 18 With the busbar 18, the second portion 5 of the wiring harness is permanently connected, for example by soldering or crimping.
  • the second section 5 of the wiring harness is encapsulated in the terminal support 8. This guarantees the tightness and vibration stability.
  • FIGS. 4 and 5 show the connecting means 7 in a second embodiment as a single part representation and Figure 5 as an assembly diagram.
  • the first and second embodiment of the connecting means 7 differs in the design of the hood and an additional eyelet on the terminal support 8 ( Figure 4).
  • the connecting means 7 is composed of the following components: a hood 10, cover 19, clamp support 8 and corrugated tube 21.
  • On the hood 10, two webs 27 are arranged with locking lugs 13. About this locking lugs 13, the hood 10 is fixed in eyelets 14 of the clamp carrier 8 after assembly.
  • the further functionality of the clamp carrier 8, the clamp 16 and the cover 19 correspond to the embodiments of FIGS. 2 and 3.
  • FIG. 6 shows a method sequence for installing the connecting means 7 in the cylinder head housing 2 of an internal combustion engine.
  • a step S 1 the clamping support 8 is inserted with the second portion 5 of the wiring harness in the cylinder head housing 2, wherein the locking lugs 15 engage behind the housing wall and the clamp carrier 8 set.
  • the second section 5 of the cable harness is then connected to the injector 3.
  • the stripped wires of the first portion 4 of the wiring harness with the terminal support 8 (terminal 16) are detachably connected.
  • the hood 9 or the hood 10 is fixed to the corrugated tube 21 on the clamp carrier 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Die Erfindung betrifft eine Brennkraftmaschine mit einem Verbindungsmittel zum Verbinden eines ersten mit einem zweiten Abschnitt eines Kabelbaums an einem Zylinderkopf-Gehäuse nach dem Oberbegriff von Anspruch 1 sowie ein Verfahren zum Einbau nach dem Oberbegriff von Anspruch 7.The invention relates to an internal combustion engine having a connecting means for connecting a first to a second portion of a wire harness to a cylinder head housing according to the preamble of claim 1 and a method for installation according to the preamble of claim 7.

Bei einer Brennkraftmaschine wird der Kraftstoff durch einen Injektor in den Brennraum eingespritzt. Hierbei bestimmt ein elektronisches Steuergerät über entsprechende Ansteuersignale den Schaltzustand des Injektors. Die Signalübertragung erfolgt über einen Kabelbaum. Da der Injektor innerhalb des Zylinderkopf-Gehäuses angeordnet ist, muss der Kabelbaum durch das Zylinderkopf-Gehäuse hindurchgeführt werden. Diese Durchführung ist kritisch, da das Zylinderkopf-Gehäuse gegenüber der Umwelt schmiermittel- und kraftstoffdicht sein muss. Aufgrund der Motorvibrationen ist der Kabelbaum an der Durchführung zusätzlich einer mechanischen Belastung ausgesetzt.In an internal combustion engine, the fuel is injected through an injector into the combustion chamber. In this case, an electronic control unit determines the switching state of the injector via corresponding control signals. The signal transmission takes place via a cable harness. Since the injector is disposed within the cylinder head housing, the wiring harness must be passed through the cylinder head housing. This implementation is critical, since the cylinder head housing must be against the environment lubricant and fuel-tight. Due to the engine vibrations, the cable harness is additionally exposed to a mechanical stress on the implementation.

Die EP 0 454 895 B1 zeigt eine Durchführung für einen Kabelbaum an einem Zylinderkopf. Der Kabelbaum ist in eine Dichtung eingeschmolzen, welche zwischen dem Zylinderkopf und der Haube angeordnet wird. In einer weiteren Ausführung werden die Adern des Kabelbaums durch Bohrungen in der Dichtung hindurchgeschoben. Problematisch ist hierbei die mögliche mechanische Beschädigung des Kabelbaums aufgrund zu hoher Anzugsmomente beim Befestigen der Haube auf dem Zylinderkopf.EP 0 454 895 B1 shows a leadthrough for a cable harness on a cylinder head. The wiring harness is fused into a gasket which is placed between the cylinder head and the hood. In another embodiment, the wires of the wiring harness are pushed through holes in the seal. The problem here is the possible mechanical damage to the wiring harness due to high torque when mounting the hood on the cylinder head.

Die DE 197 34 970 A1 zeigt einen Zentralstecker, der mit dem Zylinderkopf-Gehäuse der Brennkraftmaschine verschraubt wird. Der Kabelbaum vom elektronischen Steuergerät zum Injektor besteht aus einem ersten und zweiten Abschnitt. Der erste Abschnitt erstreckt sich vom elektronischen Steuergerät bis zu einem Gegenstecker. Der zweite Abschnitt des Kabelbaums erstreckt sich im Inneren des Zylinderkopf-Gehäuses vom Zentralstecker zum Injektor. Über eine Dichtung verschließt der Zentralstecker den Zylinderkopf schmiermittel- und kraftstoffdicht. Problematisch beim Stecker-Buchsen-Konzept sind die Herstellungskosten der Teile selbst sowie die aufwendige Fertigung des ersten Abschnitts des Kabelbaums mit dem Gegenstecker. Erschwerend kommt hinzu, dass die Lebensdauer eines Stecker-Buchsen-Konzepts (3000 Betriebsstunden) gegenüber der Lebensdauer eines Großdieselmotors (größer 20000 Betriebsstunden) zu gering ist. Das Stecker-Buchsen-Konzept ist also bei Großdieselmotoren nicht einsetzbar.DE 197 34 970 A1 shows a central plug, which is bolted to the cylinder head housing of the internal combustion engine. The wiring harness from the electronic control unit to the injector consists of a first and second section. The first section extends from the electronic control unit to a mating connector. The second portion of the wiring harness extends inside the cylinder head housing from the center plug to the injector. The central plug closes the cylinder head in a lubricant-tight and fuel-tight manner via a seal. The problem with the plug-socket concept, the manufacturing cost of the parts themselves and the complex production of the first section of the wiring harness with the mating connector. To make matters worse, that the lifetime of a plug-socket concept (3000 operating hours) compared to the life of a large diesel engine (greater than 20,000 operating hours) is too low. The plug-socket concept is therefore not applicable to large diesel engines.

Eine Brennkraftmaschine nach dem Oberbegriff von Anspruch 1 ist aus der Druckschrift US 6 189 511 A bekannt.An internal combustion engine according to the preamble of claim 1 is known from the document US 6 189 511 A.

Der Erfindung liegt die Aufgabe zu Grunde für die Schnittstelle Kabelbaum/Zylinderkopf Gehäuse ein Verbindungsmittel bereitzustellen, welches kostengünstig, leicht montierbar und dicht ist.The invention is based on the object for the interface harness / cylinder head housing to provide a connection means which is inexpensive, easy to install and tight.

Die Aufgabe wird durch die Merkmale von Anspruch 1 und einem Verfahren nach Anspruch 7 gelöst. Die vorteilhaften Ausgestaltungen sind in den Unteransprüchen dargestellt.The object is solved by the features of claim 1 and a method according to claim 7. The advantageous embodiments are shown in the subclaims.

Die Erfindung sieht vor, dass das Verbindungsmittel einen Klemmträger und eine Haube umfasst und sowohl der Klemmträger als auch die Haube Mittel zur Selbst-Arretierung aufweisen. Bei der Haube ist der Selbst-Arretierung über einen Rastring oder Rastnase verwirklicht. Beim Klemmträger ist die Selbst-Arretierung über Rastnasen ausgeführt. Der Klemmträger wird im montierten Zustand am Zylinderkopf-Gehäuse festgesetzt indem die Rastnasen das Zylinderkopf-Gehäuse hintergreifen und zum Innenraum abdichtet. Danach wird die Haube auf dem Klemmträger über den Rastring oder Rastnase festgesetzt. Zur Befestigung des Klemmträgers und der Haube sind keine weiteren Arbeitsschritte notwendig. Ebenso entfallen zusätzliche Befestigungsmittet, wie etwa Schrauben und Bohrungen. Über den Rastring in der Haube wird der Vorteil erzielt, dass die Haube mit einem daran befestigten Wellrohr-Schlauch jede beliebige Winkel-Lage auf dem Klemmträger gestattet. Das Verbindungsmittel ist für die prognostizierte Lebensdauer eines Großdieselmotors ausgelegt, d. h. das Verbindungsmittel ist vibrationsstabil für diesen Zeitraum.The invention provides that the connecting means comprises a clamping carrier and a hood and both the clamping carrier and the hood have means for self-locking. When the hood of the self-locking is realized via a locking ring or latch. When clamping support the self-locking is carried out via locking lugs. The clamp carrier is fixed in the assembled state on the cylinder head housing by the locking lugs engage behind the cylinder head housing and seals to the interior. Thereafter, the hood is fixed on the clamp carrier on the locking ring or latch. To attach the clamp carrier and the hood no further steps are necessary. Likewise accounts for additional Befestigungsmittet, such as screws and holes. About the locking ring in the hood has the advantage that the hood with a corrugated tube attached thereto allows any angle position on the clamp carrier. The connecting means is designed for the predicted life of a large diesel engine, d. H. The lanyard is vibration stable for this period.

In einer Ausführung wird vorgeschlagen, dass der Klemmträger Klemmen und Abdeckungen aufweist, wobei jede Klemme aus einer Druckfeder und einer Stromschiene besteht. Mit der Stromschiene ist der zweite Abschnitt des Kabelbaums unlösbar verbunden, zum Beispiel durch Löten oder Crimpen. Zusätzlich wird der zweite Abschnitt des Kabelbaums im Klemmträger vergossen. Hierdurch wird die Dichtheit und Vibrationsstabilität garantiert. Die Adern des ersten Abschnitts des Kabelbaums werden zwischen der Druckfeder und der Stromschiene aufgrund der Federkraft festgehalten. Der Vorteil dieser Anordnung besteht darin, dass der Gegenstecker am Ende des ersten Abschnitts des Kabelbaums entfällt. Zum Anbringen des ersten Abschnitt des Kabelbaums am Klemmträger ist lediglich ein Schraubenzieher erforderlich. Zusätzlich garantiert die Klemmwirkung der Druckfeder eine gleichbleibende Klemmwirkung auch unter Vibrationsbelastung sowie einen gleichbleibenden Übergangswiderstand zwischen den Adern des ersten Abschnitts des Kabelbaums und der Stromschiene. Gegenüber einer konventionellen Schraub-Klemm-Verbindung entfällt das Nachziehen der Schraube. Bekanntermaßen tritt bei einer derartigen Verbindung ein Fließen des Kupfers und Setzen der Schraube auf.In one embodiment, it is proposed that the clamp carrier terminals and covers, each terminal consists of a compression spring and a busbar. With the busbar of the second portion of the wiring harness is permanently connected, for example by soldering or crimping. In addition, the second section of the cable harness is encapsulated in the terminal carrier. This guarantees the tightness and vibration stability. The wires of the first section of the wiring harness become held between the compression spring and the busbar due to the spring force. The advantage of this arrangement is that the mating connector is omitted at the end of the first section of the wiring harness. For attaching the first portion of the wiring harness to the terminal support only a screwdriver is required. In addition, the clamping action of the compression spring ensures a consistent clamping effect even under vibration load and a constant contact resistance between the wires of the first section of the wiring harness and the busbar. Compared to a conventional screw-clamp connection eliminates the tightening of the screw. As is known, occurs in such a connection, a flow of copper and setting the screw.

Da die Einbauzeiten für Verschrauben, Abdichten und Ausrichten beim erfindungsgemäßen Verbindungsmittel entfallen, halbiert sich die erforderliche Montagezeit gegenüber einem Stecker-Buchsen-Konzept.Since the installation times for screwing, sealing and aligning the connecting means according to the invention omitted, halves the required assembly time compared to a plug-socket concept.

In den Zeichnungen sind die bevorzugten Ausführungsbeispiele dargestellt, wobei gleiche Bauteile mit gleichbleibenden Bezugszeichen versehen sind. Es zeigen:

Figur 1
ein Übersichtsbild;
Figur 2
ein Verbindungsmittel, erste Ausführung (Einzelteil-Darstellung);
Figur 3
ein Verbindungsmittel, erste Ausführung (Zusammenbau-Darstellung);
Figur 4
ein Verbindungsmittel, zweite Ausführung (Einzelteil-Darstellung);
Figur 5
ein Verbindungsmittel, zweite Ausführung (Zusammenbau-Darstellung);
Figur 6
ein Verfahrensablauf zum Einbau.
In the drawings, the preferred embodiments are shown, wherein like components are provided with the same reference numerals. Show it:
FIG. 1
an overview picture;
FIG. 2
a connecting means, first embodiment (item representation);
FIG. 3
a connecting means, first embodiment (assembly diagram);
FIG. 4
a connecting means, second embodiment (item representation);
FIG. 5
a connecting means, second embodiment (assembly diagram);
FIG. 6
a procedure for installation.

In Figur 1 ist die untere Hälfte eines Zylinderkopf-Gehäuses 2 auf einem Kurbelgehäuse 1 der Brennkraftmaschine dargestellt. Im Zylinderkopf-Gehäuse 2 sind ein Injektor 3 und ein Ventiltrieb 24 angeordnet. Über eine Hochdruckleitung 22 wird dem Injektor 3 druckbeaufschlagter Kraftstoff zugeführt, beispielsweise aus einem Hochdruckspeicher eines Common-Rail-Systems. Der Schaltzustand des Injektors 3 wird über ein elektronisches Steuergerät 6 (EDC) festgelegt. Die Signalübertragung erfolgt über einen Kabelbaum. Dieser besteht aus einem ersten Abschnitt 4 und einem zweiten Abschnitt 5. Der erste Abschnitt 4 des Kabelbaums erstreckt sich vom elektronischen Steuergerät 6 bis zum Verbindungsmittel 7. Das Verbindungsmittel 7 stellt die Schnittstelle Kabelbaum/Zylinderkopf-Gehäuse dar. Der zweite Abschnitt 5 des Kabelbaums erstreckt sich im Inneren des Zylinderkopf-Gehäuses 2 vom Verbindungsmittel 7 zum Injektor 3. Das dem Verbindungsmittel 7 abgewandte Ende des zweiten Abschnitts 5 wird über einen Steckkontakt 23 mit dem Injektor 3 verbunden. In Figur 1 ist das Verbindungsmittel 7 vor dem endgültigen Zusammenbau dargestellt. Hierbei befindet sich ein Klemmträger 8 bereits im festgesetzten Zustand am Zylinderkopf-Gehäuse 2. Am ersten Abschnitt 4 des Kabelbaums ist die Haube 9 und der erste Abschnitt 4 des Kabelbaums mit abisolierten Adern dargestellt.In Figure 1, the lower half of a cylinder head housing 2 is shown on a crankcase 1 of the internal combustion engine. In the cylinder head housing 2, an injector 3 and a valve drive 24 are arranged. Via a high pressure line 22 is the injector. 3 supplied pressurized fuel, for example, from a high-pressure accumulator of a common rail system. The switching state of the injector 3 is determined via an electronic control unit 6 (EDC). The signal transmission takes place via a cable harness. This consists of a first section 4 and a second section 5. The first section 4 of the wiring harness extends from the electronic control unit 6 to the connecting means 7. The connecting means 7 represents the interface harness / cylinder head housing. The second section 5 of the wiring harness extends in the interior of the cylinder head housing 2 from the connecting means 7 to the injector 3. The end of the second section 5 facing away from the connecting means 7 is connected to the injector 3 via a plug contact 23. In Figure 1, the connecting means 7 is shown prior to final assembly. In this case, a clamp support 8 is already in the fixed state on the cylinder head housing 2. At the first section 4 of the wiring harness, the hood 9 and the first section 4 of the wiring harness is shown with stripped wires.

Im Folgenden wird auf die Figuren 2 und 3 gemeinsam Bezug genommen. Hierbei zeigen Figur 2 das Verbindungsmittel 7 in einer ersten Ausführung als Einzelteil-Darstellung und Figur 3 als Zusammenbau-Darstellung. Das Verbindungsmittel 7 setzt sich aus folgenden Bauteilen zusammen: eine Haube 9, Klemmen 16, Abdeckung 19, Klemmträger 8 und ein Wellrohr-Schlauch 21. Über den Wellrohr-Schlauch 21 werden die Adern des Kabelbaums vor mechanischer Beschädigung aufgrund der Vibrationen geschütztIn the following, reference is made to FIGS. 2 and 3 together. Here, Figure 2 shows the connecting means 7 in a first embodiment as a single part representation and Figure 3 as an assembly diagram. The connecting means 7 is composed of the following components: a hood 9, clamps 16, cover 19, clamp support 8 and a corrugated tube 21. The corrugated tube 21, the cores of the wiring harness are protected against mechanical damage due to the vibrations

Die Haube 9 besteht aus den I-förmigen Haubenteilen 9A und 9B. Diese sind über ein Kunststoff-Scharnier klappbar miteinander verbunden. Jedes Haubenteil trägt im Inneren einen Abschnitt eines Rastrings 11, Bezugszeichen 11A und 11B. Dieser Rastring 11 greift in eine Nut 12 des Klemmträgers 8 ein, siehe hierzu Figur 3. Über diese Nut-Ring Anordnung lässt sich die Haube 9 um 360 Grad auf dem Klemmkörper 8 drehen. Hierdurch wird der Vorteil erzielt, dass die Haube 9 mit dem daran befestigten Wellrohr-Schlauch 21 jede beliebige Winkellage nach dem Anbringen des Verbindungsmittels 7 am Zylinderkopf einnehmen kann. Zwei Klemmen 16 werden in entsprechende Aussparungen des Klemmträgers 8 angeordnet. Jede Klemme 16 umfasst eine Druckfeder 17 und eine Stromschiene 18. Die Lagerung der Klemmen 16 erfolgt in einer entsprechenden Kontur auf der Oberseite des Klemmträgers 8 und der Abdeckung 19. In Figur 2 ist die Abdeckung 19 zweiteilig ausgeführt, Bezugszeichen 19A und 19B. An einem Grundkörper 25 des Klemmträgers 8 sind mehrere Stege 26 mit Rastnasen 15 einstückig angeordnet. Über die Rastnasen 15 hintergreift der Klemmträger 8 die Wandung des Zylinderkopf-Gehäuses 2 nach der Montage. Über die Rastnasen 15 erfolgt also die Selbst-Arretierung des Klemmträgers 8. Zur Abdichtung des Klemmträgers 8 gegenüber dem Zylinderkopf Gehäuse 2 ist eine Nut 20 zur Aufnahme eines O-Rings vorgesehen. Mit der Stromschiene 18 ist der zweite Abschnitt 5 des Kabelbaums unlösbar verbunden, zum Beispiel durch Löten oder Crimpen. Zusätzlich wird der zweite Abschnitt 5 des Kabelbaums im Klemmträger 8 vergossen. Hierdurch wird die Dichtheit und Vibrationsstabilität garantiert.The hood 9 consists of the I-shaped hood parts 9A and 9B. These are hinged together via a plastic hinge. Each hood part carries inside a portion of a locking ring 11, reference numerals 11A and 11B. This locking ring 11 engages in a groove 12 of the clamping carrier 8, see FIG. 3. By means of this groove-ring arrangement, the hood 9 can be rotated by 360 degrees on the clamping body 8. In this way, the advantage is achieved that the hood 9 with the attached corrugated hose 21 can take any angular position after attaching the connecting means 7 on the cylinder head. Two clamps 16 are arranged in corresponding recesses of the clamp carrier 8. Each clamp 16 comprises a compression spring 17 and a bus bar 18. The mounting of the clamps 16 takes place in a corresponding contour on the upper side of the clamp carrier 8 and the cover 19. In Figure 2, the cover 19 in two parts, reference numerals 19A and 19B. On a main body 25 of the clamp carrier 8 a plurality of webs 26 are arranged integrally with locking lugs 15. About the locking lugs 15 of the terminal carrier 8 engages behind the wall of the cylinder head housing 2 after assembly. About the locking lugs 15 so the self-locking of the clamp carrier 8 takes place to seal the clamp carrier 8 relative to the cylinder head housing 2, a groove 20 for receiving an O-ring is provided. With the busbar 18, the second portion 5 of the wiring harness is permanently connected, for example by soldering or crimping. In addition, the second section 5 of the wiring harness is encapsulated in the terminal support 8. This guarantees the tightness and vibration stability.

Im Folgenden wird auf die Figuren 4 und 5 gemeinsam Bezug genommen. Hierbei zeigen Figur 4 das Verbindungsmittel 7 in einer zweiten Ausführung als Einzelteil-Darstellung und Figur 5 als Zusammenbau-Darstellung. Die erste und zweite Ausführung des Verbindungsmittels 7 unterscheidet sich in der Ausführung der Haube sowie einer zusätzlichen Öse am Klemmträger 8 (Figur 4). Das Verbindungsmittel 7 setzt sich aus folgenden Bauteilen zusammen: eine Haube 10, Abdeckung 19, Klemmträger 8 und Wellrohr-Schlauch 21. An der Haube 10 sind zwei Stege 27 mit Rastnasen 13 angeordnet. Über diese Rastnasen 13 wird die Haube 10 in Ösen 14 des Klemmträgers 8 nach der Montage festgesetzt. Die weitere Funktionalität des Klemmträgers 8, der Klemme 16 und der Abdeckung 19 entsprechen den Ausführungen der Figur 2 und 3.In the following, reference is made to FIGS. 4 and 5 together. Here, Figure 4 shows the connecting means 7 in a second embodiment as a single part representation and Figure 5 as an assembly diagram. The first and second embodiment of the connecting means 7 differs in the design of the hood and an additional eyelet on the terminal support 8 (Figure 4). The connecting means 7 is composed of the following components: a hood 10, cover 19, clamp support 8 and corrugated tube 21. On the hood 10, two webs 27 are arranged with locking lugs 13. About this locking lugs 13, the hood 10 is fixed in eyelets 14 of the clamp carrier 8 after assembly. The further functionality of the clamp carrier 8, the clamp 16 and the cover 19 correspond to the embodiments of FIGS. 2 and 3.

In Figur 6 ist ein Verfahrensablauf zum Einbau des Verbindungsmittels 7 in das Zylinderkopf-Gehäuse 2 einer Brennkraftmaschine dargestellt. In einem Schritt S 1 wird der Klemmträger 8 mit dem zweiten Abschnitt 5 des Kabelbaums in das Zylinderkopf-Gehäuse 2 eingesetzt, wobei die Rastnasen 15 die Gehäusewandung hintergreifen und den Klemmträger 8 festsetzen. In einem Schritt S2 wird danach der zweite Abschnitt 5 des Kabelbaums mit dem Injektor 3 verbunden. In einem Schritt S3 werden die abisolierten Adern des ersten Abschnitts 4 des Kabelbaums mit dem Klemmträger 8 (Klemme 16) lösbar verbunden. In einem letzten Schritt S4 wird die Haube 9 bzw. die Haube 10 mit dem Wellrohr-Schlauch 21 am Klemmträger 8 festgesetzt.FIG. 6 shows a method sequence for installing the connecting means 7 in the cylinder head housing 2 of an internal combustion engine. In a step S 1, the clamping support 8 is inserted with the second portion 5 of the wiring harness in the cylinder head housing 2, wherein the locking lugs 15 engage behind the housing wall and the clamp carrier 8 set. In a step S2, the second section 5 of the cable harness is then connected to the injector 3. In a step S3, the stripped wires of the first portion 4 of the wiring harness with the terminal support 8 (terminal 16) are detachably connected. In a last step S4, the hood 9 or the hood 10 is fixed to the corrugated tube 21 on the clamp carrier 8.

Bezugszeichenreference numeral

11
Kurbelgehäusecrankcase
22
Zylinderkopf-GehäuseCylinder head housing
33
Injektorinjector
44
Kabelbaum, erster AbschnittHarness, first section
55
Kabelbaum, zweiter AbschnittHarness, second section
66
Elektronisches Steuergerät (EDC)Electronic control unit (EDC)
77
Verbindungsmittelconnecting means
88th
Klemmträgerclamp support
9A, B9A, B
Haube, erste AusführungHood, first version
1010
Haube, zweite AusführungHood, second version
1111
Rastring (Haube)Locking ring (hood)
1212
Nutgroove
1313
Rastnase (Haube)Locking nose (hood)
1414
Öseeyelet
1515
Rastnase (Klemmträger)Locking nose (clamp carrier)
1616
Klemmeclamp
1717
Druckfedercompression spring
1818
Stromschieneconductor rail
19A, B19A, B
Abdeckungcover
2020
Nutgroove
2121
Wellrohr-SchlauchCorrugated pipe hose
2222
HochdruckleitungHigh-pressure line
2323
Steckkontaktplug contact
2424
Ventiltriebvalve train
2525
Grundkörperbody
2626
Stegweb
2727
Stegweb

Claims (9)

  1. Internal combustion engine having at least one cylinder head in whose housing (2) is arranged an injector (3) for injecting fuel, having a wiring harness for transmitting signals from an electronic control unit (6) to the injector (3), wherein the wiring harness comprises a first section (4) from the electronic control unit (6) to the cylinder head housing (2) and a second section (5) from the cylinder head housing (2) to the injector (3), and having a means for connecting the first section (4) to the second section (5) of the wiring harness, which means comprises a clamp carrier (8) and a cover (9, 10), the clamp carrier (8) having as a self-locking means a locking catch (15) which engages on the cylinder head housing (2) so that the clamp carrier (8) is fixed to the latter, and the cover (9, 10) having a self-locking means which engages on the clamp carrier (8),
    characterized in that
    the clamp carrier (8) comprises a clamp (16) and an enclosure (19) for the clamp (16), the clamp consisting of a pressure spring (17) for exerting a clamping force and a busbar (18), the second section (5) of the wiring harness being connected in a non-detachable manner to the busbar (18) of the clamp carrier (8), and the wires, with insulation removed, of the first section (4) of the wiring harness being connected in a detachable manner to the clamp carrier (8) by means of the pressure spring (17) and busbar (18).
  2. Internal combustion engine having a connecting means (7) according to Claim 1, characterized in that the clamp carrier (8) has a closed circumferential groove (12) and the cover (9) has a locking ring (11) as a self-locking means, the locking ring (11) engaging in the groove (12) of the clamp carrier (8).
  3. Internal combustion engine having a connecting means (7) according to Claim 2, characterized in that the cover (9) consists of two L-shaped cover parts (9A, 9B) which are connected to one another by means of a plastic hinge.
  4. Internal combustion engine having a connecting means (7) according to Claim 1, characterized in that the clamp carrier (8) has eyes (14) and the cover (10) has locking catches (13) as a self-locking means, the locking catches (13) engaging in the eyes (14) of the clamp carrier (8).
  5. Internal combustion engine having a connecting means (7) according to one of the preceding claims, characterized in that the clamp carrier (8) has a circumferential groove (20) for holding a sealing ring.
  6. Internal combustion engine having a connecting means (7) according to one of the preceding claims, characterized in that a corrugated tube (21) is arranged between the first section (4) of the wiring harness and the cover (9, 10).
  7. Method for installing a connecting means (7) in an internal combustion engine according to Claim 1, characterized in that in a first step (S1), the clamp carrier (8) is fixed to the cylinder head housing (2) by means of self-locking, in a second step (S2), the second section (5) of the wiring harness is placed in contact with the injector (3), in a third step (S3), the first section (4) of the wiring harness is connected to the clamp carrier (8) and in a fourth step (S4), the cover (9, 10) is fixed to the clamp carrier (8) by means of self-locking.
  8. Method according to Claim 7, characterized in that the second section (5) of the wiring harness is connected in a non-detachable manner to the busbar (18) of the clamp carrier (8).
  9. Method according to Claim 7, characterized in that the first section (4) of the wiring harness is connected in a detachable manner to the clamp carrier (8).
EP03790862A 2002-08-09 2003-08-06 Internal combustion engine comprising a connecting means for connecting a first section of a wire harness on a cylinder head housing to a second section of the same Expired - Fee Related EP1527274B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10236505A DE10236505B4 (en) 2002-08-09 2002-08-09 Internal combustion engine with a connecting means for connecting a first and a second portion of a wire harness to a cylinder head housing
DE10236505 2002-08-09
PCT/EP2003/008674 WO2004020814A1 (en) 2002-08-09 2003-08-06 Internal combustion engine comprising a connecting means for connecting a first section of a wire harness on a cylinder head housing to a second section of the same

Publications (2)

Publication Number Publication Date
EP1527274A1 EP1527274A1 (en) 2005-05-04
EP1527274B1 true EP1527274B1 (en) 2006-05-03

Family

ID=30775108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03790862A Expired - Fee Related EP1527274B1 (en) 2002-08-09 2003-08-06 Internal combustion engine comprising a connecting means for connecting a first section of a wire harness on a cylinder head housing to a second section of the same

Country Status (4)

Country Link
US (1) US7225777B2 (en)
EP (1) EP1527274B1 (en)
DE (2) DE10236505B4 (en)
WO (1) WO2004020814A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5215145B2 (en) * 2008-12-02 2013-06-19 矢崎総業株式会社 Electrical junction box
JP5154495B2 (en) * 2009-04-03 2013-02-27 株式会社日本自動車部品総合研究所 Fuel injection valve and internal electric connection method of fuel injection valve
AU2018378315A1 (en) 2017-12-04 2020-07-16 Holley Performance Products, Inc. Electronic fuel injection throttle body assembly
DE102017223543A1 (en) 2017-12-21 2019-06-27 Volkswagen Aktiengesellschaft Electrical connection element
IT201800004166A1 (en) * 2018-04-03 2019-10-03 PUMPING GROUP TO FEED FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736198A1 (en) * 1987-10-26 1989-05-18 Voest Alpine Automotive FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
US4950171A (en) * 1989-08-11 1990-08-21 Itt Corporation Fuel injector connector system
US4974798A (en) * 1989-12-18 1990-12-04 Chrysler Corporation Vehicle wiring harness cable mounting assembly structure
US5035637A (en) * 1990-05-04 1991-07-30 Navistar International Transportation Corp. Engine valve cover gasket with electrical bridge
US5142744A (en) * 1990-12-10 1992-09-01 Caterpillar Inc. Ignition system wiring harness and spring clip retainers therefor
US5086743A (en) * 1990-12-20 1992-02-11 Ford Motor Company Integrally formed and tuned fuel rail/injectors
US5642704A (en) * 1996-03-22 1997-07-01 Navistar International Transportation Corp. Engine wiring harness support with integral oil spill deflector
JP3361704B2 (en) * 1996-10-25 2003-01-07 矢崎総業株式会社 Plug cap for spark plug
DE19734970A1 (en) * 1997-08-13 1999-02-18 Volkswagen Ag Component for a motor vehicle, preferably a cylinder head of an internal combustion engine
JP2000274256A (en) * 1999-03-23 2000-10-03 Isuzu Motors Ltd Injector harness wiring device for engine
US6189511B1 (en) * 1999-09-07 2001-02-20 Navistar International Transporation Corp Clip-on deflector for a fuel injector
US6502547B2 (en) * 2000-01-28 2003-01-07 Siemens Vdo Automotive Inc. Foamed over integrated circuit for intake manifold
US6688290B2 (en) * 2002-01-31 2004-02-10 Visteon Global Technologies, Inc. Integrated fuel delivery and electronic powertrain control module and method of manufacture
US6590162B1 (en) * 2002-07-16 2003-07-08 Siemens Diesel Systems Technology Wire guide
US6589066B1 (en) * 2002-07-30 2003-07-08 Hon Hai Precision Ind. Co., Ltd. Electrical connector having a latch mechanism

Also Published As

Publication number Publication date
DE10236505A1 (en) 2004-02-26
US7225777B2 (en) 2007-06-05
EP1527274A1 (en) 2005-05-04
WO2004020814A1 (en) 2004-03-11
DE50303221D1 (en) 2006-06-08
DE10236505B4 (en) 2007-09-06
US20060042602A1 (en) 2006-03-02

Similar Documents

Publication Publication Date Title
DE19745388A1 (en) Fuel delivery device for engine using electrically operated injector
EP1070642A2 (en) Heating device for a windschield washer system
DE19515569C2 (en) Device for the electrical connection of electrical components arranged in the intake system of an internal combustion engine
DE102015221056A1 (en) High-pressure fuel pump
DE60024938T2 (en) joint assembly
DE102008045213A1 (en) Electropneumatic control arrangement for a level control of a vehicle
EP1527274B1 (en) Internal combustion engine comprising a connecting means for connecting a first section of a wire harness on a cylinder head housing to a second section of the same
DE112013000311T5 (en) turbocharger
WO2003087567A1 (en) Leakage connection for a fuel injector
EP1004754A2 (en) Connector arrangement for engine control system
DE19837355A1 (en) Method for fixture of pipe conduit in cylinder, particularly in toothed rod hydraulic linkage, involves fitting bush on pipe conduit so that locked engagement takes place
EP1541905B1 (en) Gasket
DE102007011794A1 (en) Plug connector, e.g. for motor fuel injectors, has a bayonet lock and a plug setting to block the cap nut and contact carrier in a zero setting when disconnected
DE102017223543A1 (en) Electrical connection element
DE10253956A1 (en) Piezo actuator contact for injection valve and method for its production
DE102017108823A1 (en) AGGREGATE CONNECTION FOR A VEHICLE
DE102020131327A1 (en) Electric motor for an actuating device of a motor vehicle and method for assembling a camshaft adjuster
WO2021228294A1 (en) Shielding element and plug connector
DE10037133A1 (en) Fuel distribution rail for IC engines has cast plastic/metal housing with standardized connectors for random connection of components
EP0896902B1 (en) Vehicle component , in particularly a cylinder head of a combustion engine
DE102010020982A1 (en) Internal combustion engine and cylinder head cover
EP2099100B1 (en) Connector plug
DE102008044034A1 (en) Cable bushing for use in axle transmission of power engine of e.g. drive train, of automobile, has premold that is cast after pushing electrical and electronic components into assembly
DE202005010447U1 (en) Cylinder head cover for internal combustion engine has electrical components integrated into it so that locking, clamping or snap connection with the head is formed
EP4150721B1 (en) Shielding element and plug connector

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

17P Request for examination filed

Effective date: 20041112

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20050518

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

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

REF Corresponds to:

Ref document number: 50303221

Country of ref document: DE

Date of ref document: 20060608

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060822

ET Fr: translation filed
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: 20070206

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

Ref country code: DE

Payment date: 20080822

Year of fee payment: 6

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: 20100302

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

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

Ref country code: GB

Payment date: 20160819

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20160822

Year of fee payment: 14

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

Effective date: 20170806

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180430

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: 20170806

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

Ref country code: FR

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

Effective date: 20170831