EP1247973B1 - Tube insert for a cylinder head with cover of an internal combustion engine - Google Patents

Tube insert for a cylinder head with cover of an internal combustion engine Download PDF

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Publication number
EP1247973B1
EP1247973B1 EP02003769A EP02003769A EP1247973B1 EP 1247973 B1 EP1247973 B1 EP 1247973B1 EP 02003769 A EP02003769 A EP 02003769A EP 02003769 A EP02003769 A EP 02003769A EP 1247973 B1 EP1247973 B1 EP 1247973B1
Authority
EP
European Patent Office
Prior art keywords
liner pipe
cylinder head
sealing element
cover
insert tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02003769A
Other languages
German (de)
French (fr)
Other versions
EP1247973A2 (en
EP1247973A3 (en
Inventor
Helmut Stuber
Huber Rother
Johannes Meyer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1247973A2 publication Critical patent/EP1247973A2/en
Publication of EP1247973A3 publication Critical patent/EP1247973A3/en
Application granted granted Critical
Publication of EP1247973B1 publication Critical patent/EP1247973B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
    • 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
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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

Definitions

  • the invention relates to an insert tube for a cylinder head with cover an internal combustion engine in the cylinder head via an opening in the Cover the arrangement of a device (spark plug, injector) serving Shaft limited, wherein the insert tube arranged over in both end regions rubber-elastic sealing elements with corresponding recesses in the cylinder head and lid is in releasable plug connection.
  • Such insert tube is known for example from DE 39 43 729 C2.
  • the arrangement of a recessed in the cylinder head arranged spark plug serving Insert tube is provided in both end regions each with a groove for Recording of a so-called O-ring.
  • the O-ring of the annular groove or groove be pushed and take a non-tight clamping seat. If missing Visual inspection of this connector can disadvantageously lubricating oil penetrate the cylinder head into the shaft or plug shaft.
  • the invention is based on the object, for an insert tube, a sealing arrangement show, even with improper installation a perfect seal results.
  • the advantage of the invention is that a displacement of a sealing element in the Installation of the insert tube by plugging is safely avoided. In addition, the Mounting much easier and also can dispense with a visual inspection become.
  • a permanent connection between sealing element and insert tube by vulcanization in an advantageous manner achieved.
  • the advantage of this compound is to be seen in the high load capacity, which at the plug arrangement of the insert tube, in particular in the cylinder head occur can.
  • a preferred further embodiment of the insert tube provides that in the cylinder head side End region of the insert tube a Zentrierflansch is provided to the opposite of the insertion direction of the insert tube a sealing element connects, the one vulcanized on the outer circumference of the insert tube ring body includes closed with circumferential sealing beads.
  • a further advantageous embodiment is finally achieved in that cover-side end portion of the insert tube a Fixierflansch for this sections encompassing sealing element is provided, wherein the sealing element a optionally vulcanized on the outer circumference of the insert tube annular body with includes closed circumferential sealing beads.
  • the sealing element With the Fixierflansch the sealing element is kept positioned, with this holder is designed so that the sealing element is not necessarily insoluble with the Insert tube must be connected. Otherwise, the fixing flange serves for positional positioning the sealing element on the insert tube for producing a permanent one Connection by vulcanization. Other methods of making a permanent connection between insert tube and sealing element are also conceivable.
  • the insert tube may be formed of a metal, preferably made of a plastic.
  • the invention is based on an embodiment shown in the drawing described.
  • the insert tube 1 in both end regions 6, 7th arranged rubber-elastic sealing elements 8, 9 with corresponding recesses 10, 11 in cylinder head 2 and cover 3 in releasable plug connection.
  • a preferred permanent connection between the sealing elements 8, 9 and the Insert tube 1 is achieved by vulcanization.
  • a centering flange 12 is provided at opposite to the insertion direction of the insert tube 1, a sealing element. 8 connects, the one vulcanized on the outer circumference of the insert tube 1 annular body 13 with closed circumferential sealing beads or sealing lips 14 includes.
  • the insert tube 1 may be made of metal, preferably it is made of a plastic manufactured.

Landscapes

  • 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)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Gasket Seals (AREA)

Abstract

The insert tube (1) has in both end sections at least one rubber elastic sealing element inseparably connected to it by means of vulcanizing. A centering flange (12) is provided in the cylinder head end of the tube and to it is connected a sealing element (8) which comprises an annular component (13) vulcanized to the outer circumference of the tube and with closed encompassing sealing beads (14). At the cylinder head cover end there is a fixing flange (15) with a similar sealing arrangement (9).

Description

Die Erfindung bezieht sich auf ein Einsatzrohr für einen Zylinderkopf mit Deckel einer Brennkraftmaschine, das im Zylinderkopf einen über eine Durchbrechung im Deckel der Anordnung einer Einrichtung (Zündkerze, Einspritzdüse) dienenden Schacht begrenzt, wobei das Einsatzrohr über in beiden Endbereichen angeordnete gummielastische Dichtelemente mit korrespondierenden Ausnehmungen in Zylinderkopf und Deckel in lösbarer Steckverbindung steht.The invention relates to an insert tube for a cylinder head with cover an internal combustion engine in the cylinder head via an opening in the Cover the arrangement of a device (spark plug, injector) serving Shaft limited, wherein the insert tube arranged over in both end regions rubber-elastic sealing elements with corresponding recesses in the cylinder head and lid is in releasable plug connection.

Ein derartiges Einsatzrohr ist beispielsweise aus der DE 39 43 729 C2 bekannt. Das hierbei der Anordnung einer vertieft im Zylinderkopf angeordneten Zündkerze dienende Einsatzrohr ist in beiden Endbereichen jeweils mit einer Rille versehen zur Aufnahme eines sog. O-Ringes. Bei einer unsachgemäßen Montage des Einsatzrohres, insbesondere im Zylinderkopf, kann der O-Ring aus der Ringnut bzw. Rille geschoben werden und einen nicht dichtenden Klemmsitz einnehmen. Bei fehlender Sichtkontrolle auf diese Steckverbindung kann in nachteiliger Weise Schmieröl aus dem Zylinderkopf in den Schacht bzw. Kerzenschacht vordringen.Such insert tube is known for example from DE 39 43 729 C2. The Here, the arrangement of a recessed in the cylinder head arranged spark plug serving Insert tube is provided in both end regions each with a groove for Recording of a so-called O-ring. In case of improper installation of the insert tube, Especially in the cylinder head, the O-ring of the annular groove or groove be pushed and take a non-tight clamping seat. If missing Visual inspection of this connector can disadvantageously lubricating oil penetrate the cylinder head into the shaft or plug shaft.

Der Erfindung liegt die Aufgabe zugrunde, für ein Einsatzrohr eine Dichtungsanordnung aufzuzeigen, die auch bei unsachgemäßer Montage eine einwandfreie Abdichtung ergibt. The invention is based on the object, for an insert tube, a sealing arrangement show, even with improper installation a perfect seal results.

Diese Aufgabe ist mit dem Patentanspruch 1 dadurch gelöst, dass das Einsatzrohr zumindest mit einem unlösbar verbundenen Dichtelement ausgebildet ist.This object is achieved with the patent claim 1, characterized in that the insert tube is formed at least with a non-detachably connected sealing element.

Der Vorteil der Erfindung ist, dass eine Verschiebung eines Dichtelementes bei der Montage des Einsatzrohres durch Stecken sicher vermieden ist. Zudem ist die Montage wesentlich erleichtert und außerdem kann auf eine Sichtkontrolle verzichtet werden.The advantage of the invention is that a displacement of a sealing element in the Installation of the insert tube by plugging is safely avoided. In addition, the Mounting much easier and also can dispense with a visual inspection become.

In einer bevorzugten Ausgestaltung der Erfindung ist eine unlösbare Verbindung zwischen Dichtelement und Einsatzrohr mittels Vulkanisieren auf vorteilhafte Weise erzielt. Der Vorteil dieser Verbindung ist in der hohen Belastbarkeit zu sehen, die bei der Steckanordnung des Einsatzrohres, insbesondere im Zylinderkopf, auftreten kann.In a preferred embodiment of the invention is a permanent connection between sealing element and insert tube by vulcanization in an advantageous manner achieved. The advantage of this compound is to be seen in the high load capacity, which at the plug arrangement of the insert tube, in particular in the cylinder head occur can.

Eine bevorzugte weitere Ausgestaltung des Einsatzrohres sieht vor, dass im zylinderkopfseitigen Endbereich des Einsatzrohres ein Zentrierflansch vorgesehen ist, an den sich entgegengesetzt der Steckrichtung des Einsatzrohres ein Dichtelement anschließt, das einen am Außenumfang des Einsatzrohres anvulkanisierten Ringkörper mit geschlossen umlaufenden Dichtwülsten umfasst.A preferred further embodiment of the insert tube provides that in the cylinder head side End region of the insert tube a Zentrierflansch is provided to the opposite of the insertion direction of the insert tube a sealing element connects, the one vulcanized on the outer circumference of the insert tube ring body includes closed with circumferential sealing beads.

Mit dieser Ausgestaltung können in vorteilhafter Weise auf kleinem Bauraum mehrere Dichtwülste bzw. Dichtlippen in unverlierbarer und unverrückbarer Anordnung vorgesehen bzw. untergebracht werden. Damit ist auch bei nachlässiger Montage eine sichere Abdichtung zwischen dem Schacht und dem übrigen Innenraum des Zylinderkopfes sichergestellt.With this configuration, several can be advantageously in a small space Sealing beads or sealing lips in captive and immovable arrangement be provided or housed. This is also at negligent assembly a secure seal between the shaft and the remaining interior of the Cylinder head ensured.

Eine weitere vorteilhafte Ausgestaltung ist schließlich dadurch erreicht, dass im deckelseitigen Endbereich des Einsatzrohres ein Fixierflansch für ein diesen abschnittsweise umgreifendes Dichtelement vorgesehen ist, wobei das Dichtelement einen ggf. am Außenumfang des Einsatzrohres anvulkanisierten Ringkörper mit geschlossen umlaufenden Dichtwülsten umfasst.A further advantageous embodiment is finally achieved in that cover-side end portion of the insert tube a Fixierflansch for this sections encompassing sealing element is provided, wherein the sealing element a optionally vulcanized on the outer circumference of the insert tube annular body with includes closed circumferential sealing beads.

Mit dem Fixierflansch wird das Dichtelement positioniert gehalten, wobei diese Halterung so gestaltet ist, dass das Dichtelement nicht unbedingt unlösbar mit dem Einsatzrohr verbunden werden muss. Andernfalls dient der Fixierflansch zur Lagepositionierung des Dichtelementes auf dem Einsatzrohr zur Herstellung einer unlösbaren Verbindung mittels Vulkanisieren. Andere Verfahren zur Herstellung einer unlösbaren Verbindung zwischen Einsatzrohr und Dichtelement sind auch denkbar.With the Fixierflansch the sealing element is kept positioned, with this holder is designed so that the sealing element is not necessarily insoluble with the Insert tube must be connected. Otherwise, the fixing flange serves for positional positioning the sealing element on the insert tube for producing a permanent one Connection by vulcanization. Other methods of making a permanent connection between insert tube and sealing element are also conceivable.

Schließlich kann das Einsatzrohr aus einem Metall gebildet sein, vorzugsweise aus einem Kunststoff.Finally, the insert tube may be formed of a metal, preferably made of a plastic.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben.The invention is based on an embodiment shown in the drawing described.

Ein Einsatzrohr 1 für einen lediglich angedeuteten Zylinderkopf 2 und einem abschnittsweise gezeigten Deckel 3 einer nicht näher dargestellten Brennkraftmaschine begrenzt in dem Zylinderkopf 2 einen über eine Durchbrechung 4 im Deckel 3 der Anordnung einer Einrichtung - Zündkerze oder Einspritzdüse - dienenden Schacht 5. Weiter steht das Einsatzrohr 1 über in beiden Endbereichen 6, 7 angeordnete gummielastische Dichtelemente 8, 9 mit korrespondierenden Ausnehmungen 10, 11 in Zylinderkopf 2 und Deckel 3 in lösbarer Steckverbindung.An insert tube 1 for a merely indicated cylinder head 2 and a section shown cover 3 of an internal combustion engine, not shown limited in the cylinder head 2 via an opening 4 in the Cover 3 of the arrangement of a device - spark plug or injector - serving Shaft 5. Next is the insert tube 1 in both end regions 6, 7th arranged rubber-elastic sealing elements 8, 9 with corresponding recesses 10, 11 in cylinder head 2 and cover 3 in releasable plug connection.

Zur Erzielung einer einwandfreien Montage durch unverrückbare angeordnete Dichtelemente 8, 9 wird erfindungsgemäß vorgeschlagen, dass das Einsatzrohr 1 mit unlösbar verbundenen Dichtelementen 8, 9 ausgebildet ist.To achieve a perfect assembly by immovable arranged Sealing elements 8, 9 is proposed according to the invention that the insert tube. 1 is formed with permanently connected sealing elements 8, 9.

Eine bevorzugte unlösbare Verbindung zwischen den Dichtelementen 8, 9 und dem Einsatzrohr 1 ist mittels Vulkanisieren erzielt.A preferred permanent connection between the sealing elements 8, 9 and the Insert tube 1 is achieved by vulcanization.

Zur Erzielung einer sicheren Steckanordnung im Zylinderkopf 2 ist im zylinderkopfseitigen Endbereich 6 des Einsatzrohres 1 ein Zentrierflansch 12 vorgesehen, an den sich entgegengesetzt der Steckrichtung des Einsatzrohres 1 ein Dichtelement 8 anschließt, das einen am Außenumfang des Einsatzrohres 1 anvulkanisierten Ringkörper 13 mit geschlossen umlaufenden Dichtwülsten bzw. Dichtlippen 14 umfasst.To achieve a secure plug assembly in the cylinder head 2 is in the cylinder head side End region 6 of the insert tube 1 a centering flange 12 is provided at opposite to the insertion direction of the insert tube 1, a sealing element. 8 connects, the one vulcanized on the outer circumference of the insert tube 1 annular body 13 with closed circumferential sealing beads or sealing lips 14 includes.

Weiter ist zur Erzielung einer einwandfreien Steckverbindung zwischen Deckel 3 und Einsatzrohr 1 erfindungsgemäß vorgesehen, dass im deckelseitigen Endbereich 7 des Einsatzrohres 1 ein Fixierflansch 15 für ein diesen abschnittsweise umgreifendes Dichtelement 9 angeordnet ist, wobei das Dichtelement 9 einen am Außenumfang des Einsatzrohres 1 anvulkanisierten Ringkörper 16 mit geschlossen umlaufenden Dichtwülsten 17 umfasst.Next is to achieve a perfect connection between the lid. 3 and insert tube 1 according to the invention provided that in the cover-side end region 7 of the insert tube 1, a fixing flange 15 for a these sections enclosing Sealing element 9 is arranged, wherein the sealing element 9 a on the outer periphery of the insert tube 1 vulcanized annular body 16 with closed circumferential Sealing beads 17 includes.

Das Einsatzrohr 1 kann aus Metall sein, vorzugsweise ist es aus einem Kunststoff gefertigt.The insert tube 1 may be made of metal, preferably it is made of a plastic manufactured.

Claims (5)

  1. A liner pipe for a cylinder head and cover of an internal combustion engine,
    which in the cylinder head (2) bounds a shaft (5) for installing a device through an aperture (4) in the cover (3) wherein
    the liner pipe (1) is releasably plug-connected to corresponding recesses (10, 11) in the cylinder head (2) and cover (3) via elastomeric sealing elements (8, 9) disposed in the two end regions (6, 7),
    characterised in that
    the liner pipe (1) is equipped with at least one permanently connected sealing element (8, 9).
  2. A liner pipe according to claim 1, characterised in that a permanent connection between the sealing element (8, 9) and the liner pipe (1) is formed by vulcanisation.
  3. A liner pipe according to claims 1 and 2, characterised in that
    a centring flange (12) is provided in the end region (6) of the liner pipe (1) on the cylinder-head side and adjoins
    a sealing element (8) opposite the plug-in direction of the liner pipe (1),
    the sealing element comprising an annular member (13) with closed peripheral sealing beads (14) vulcanised to the outer periphery of the liner pipe (1).
  4. A liner pipe according to claims 1 to 3, characterised in that
    a fixing flange (15) for a sealing element (9) partly surrounding it is provided in the end region (7) of the liner pipe (1) on the cover side, wherein
    the sealing element (9) comprises an annular member (16) with closed peripheral sealing lips (17) vulcanised to the outer periphery of the liner pipe (1).
  5. A liner pipe according to any of claims 1 to 4, characterised in that it is formed of a metal or a plastics material.
EP02003769A 2001-04-06 2002-02-20 Tube insert for a cylinder head with cover of an internal combustion engine Expired - Lifetime EP1247973B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10117163 2001-04-06
DE10117163A DE10117163A1 (en) 2001-04-06 2001-04-06 Insert tube for a cylinder head with a cover of an internal combustion engine

Publications (3)

Publication Number Publication Date
EP1247973A2 EP1247973A2 (en) 2002-10-09
EP1247973A3 EP1247973A3 (en) 2003-09-10
EP1247973B1 true EP1247973B1 (en) 2005-05-04

Family

ID=7680615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02003769A Expired - Lifetime EP1247973B1 (en) 2001-04-06 2002-02-20 Tube insert for a cylinder head with cover of an internal combustion engine

Country Status (3)

Country Link
EP (1) EP1247973B1 (en)
AT (1) ATE294922T1 (en)
DE (2) DE10117163A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2925599A3 (en) * 2007-12-19 2009-06-26 Renault Sas Internal combustion engine i.e. direct injection type internal combustion engine, has cylinder head including tube locked against side of head by cover, where upper end surface is found in plane of machined upper surface of head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760104C (en) * 1940-11-21 1952-10-20 Carl F W Borgward Cylinder head for internal combustion engines
FR1328372A (en) * 1962-04-10 1963-05-31 Renault Improvements to internal combustion engines
US3144013A (en) * 1962-04-10 1964-08-11 Renault Internal combustion engines
JPH0313582Y2 (en) * 1985-11-18 1991-03-27
DE3730817A1 (en) * 1987-09-14 1989-03-23 Porsche Ag CYLINDER HEAD COVER WITH SUCTION PIPE SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
DE3842175A1 (en) * 1988-06-01 1989-12-07 Bayerische Motoren Werke Ag Cylinder head with cover for internal combustion engines
FR2642497B1 (en) * 1989-01-10 1991-10-04 Peugeot ANNULAR SEAL GASKET FOR SEALING A TUBULAR ELEMENT AND A WALL THROUGH THIS ELEMENT
DE3943727C2 (en) * 1989-12-11 1995-07-13 Porsche Ag Cylinder head of an internal combustion engine
EP0433125B1 (en) * 1989-12-15 1993-12-15 Automobiles Peugeot Method for producing a sparkplug well in the cylinder head of an internal combustion engine
DE19728947C2 (en) * 1997-07-07 2001-03-15 Audi Ag Internal combustion engine with a cylinder head

Also Published As

Publication number Publication date
ATE294922T1 (en) 2005-05-15
EP1247973A2 (en) 2002-10-09
DE10117163A1 (en) 2002-10-10
DE50202967D1 (en) 2005-06-09
EP1247973A3 (en) 2003-09-10

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