EP1669583A2 - Couvre culasse pour un moteur à combustion interne et procédé de fabrication - Google Patents

Couvre culasse pour un moteur à combustion interne et procédé de fabrication Download PDF

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Publication number
EP1669583A2
EP1669583A2 EP05111608A EP05111608A EP1669583A2 EP 1669583 A2 EP1669583 A2 EP 1669583A2 EP 05111608 A EP05111608 A EP 05111608A EP 05111608 A EP05111608 A EP 05111608A EP 1669583 A2 EP1669583 A2 EP 1669583A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
head cover
sealing element
stabilizing core
support ring
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.)
Withdrawn
Application number
EP05111608A
Other languages
German (de)
English (en)
Other versions
EP1669583A3 (fr
Inventor
Sascha Bauer
Michael Fasold
Jochen Linhart
Peter Müller
Ralf Salameh
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.)
Federal Mogul Sealing Systems Bretten GmbH
Original Assignee
Mann and Hummel GmbH
Federal Mogul Sealing Systems GmbH
Federal Mogul Sealing Systems Bretten 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 Mann and Hummel GmbH, Federal Mogul Sealing Systems GmbH, Federal Mogul Sealing Systems Bretten GmbH filed Critical Mann and Hummel GmbH
Publication of EP1669583A2 publication Critical patent/EP1669583A2/fr
Publication of EP1669583A3 publication Critical patent/EP1669583A3/fr
Withdrawn legal-status Critical Current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
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/916—Seal including vibration dampening feature

Definitions

  • the invention relates to a cylinder head cover for a cylinder head of an internal combustion engine according to the preamble of claim 1 and to a method for producing a cylinder head cover according to the preamble of claim 5 or 8.
  • a cylinder head cover for the cylinder head of an internal combustion engine is described, which is fastened with the aid of screws on the cylinder head, wherein for sealing between the hood and the cylinder head, a circumferential seal is provided, which unbuttoned on a projecting flange on the cylinder head cover or sprayed on.
  • a sealing lip of the seal projects beyond the lower end face of the cylinder head cover, so that this sealing lip rests with mounted and mounted cylinder head cover on the adjacent top of the cylinder head and a flow seal between the cylinder head and cylinder head cover is given.
  • the invention is based on the problem to provide a simple running cylinder head cover, which is effectively shielded despite a flow-tight seal against the engine vibrations. It is expedient to manufacture the cylinder head cover including the seal with simple measures.
  • the cylinder head cover according to the invention is equipped with a sealing element, which is expediently embodied as a component circulating along the outer edge of the cylinder head cover, a stabilizing core being inserted in the sealing element which is completely or at least almost completely enclosed by the sealing material of the sealing element. Between the stabilizing core and the cylinder head cover is sealing material of the sealing element. In this way it is ensured that the stabilizing core does not come into direct contact with the cylinder head cover and also out of contact with the cylinder head; rather, there is sealing material of the sealing element between the stabilizing core and the cylinder head cover as well as between the stabilizing core and the cylinder head, which ensures effective vibration decoupling.
  • the sealing element runs along the outer edge of the cylinder head cover and is thus designed as a closed ring.
  • the stabilizing core forms a corresponding circumferential support ring.
  • This support ring suitably has at least one opening, which is bridged by the sealing material of the sealing element, so that despite the opening a continuous, annular sealing element is given. Due to the opening, the support ring can compensate for thermal elongations. In principle, it is sufficient to provide only small openings in the support ring in the longitudinal and transverse direction of the sealing element in order not to impair the stability.
  • a plurality of openings may be provided over the length of the sealing element.
  • the stabilizing core or the support ring has a U-shaped cross-section, wherein in the open U-side a complementarily shaped projection on the cylinder head can be used. In this way, a stabilization and a seal in both the vertical mounting direction and in the horizontal direction is achieved.
  • the cylinder head cover is produced as a plastic molded part in the plastic injection molding method in a first operation, wherein the stabilizing core or the support ring is molded integrally or in one piece or in several parts in one piece with the cylinder head cover, which is connected via a narrow connecting web with the cylinder head cover.
  • This connecting web has the function of a predetermined breaking point, over which the stabilizing core is separated in the second step from the cylinder head cover.
  • the stabilizing core is first fixed with auxiliary means relative to the cylinder head cover and then encapsulated with an elastomer, whereby the sealing element is produced.
  • the tools for fixing the stabilizing core relative to the cylinder head cover can now be removed.
  • the cylinder head cover including sealing element can be produced. Due to the integrated stabilizing core, the sealing element has a considerably higher stability than is the case with sealing elements without such stabilizing cores.
  • the elastomer for example, to a projection or an undercut on the cylinder head cover a direct connection of the sealing element to the cylinder head cover in the sense of a hook solution to create, so that unnecessary further attachment measures.
  • the support ring is produced as an independent component and is encapsulated with elastomeric material to form a sealing element. Subsequently, we inserted the sealing element in an injection mold for the cylinder head cover and molded the cylinder head cover to the sealing element.
  • This manufacturing method has the advantage that only a small amount of effort is required for the elastomer production. Furthermore, the elastomer tools can be simple. Since the annealing process takes place before the production of the cylinder head cover, the delay problem is reduced. The mechanical anchoring of the seal on the cylinder head cover can be easily realized. In addition, there is a higher design freedom in the seal geometry.
  • Fig. 1 the upper portion of a cylinder head 1 of an internal combustion engine with attached cylinder head cover 2 is shown.
  • an annular sealing element 3 circulating in the region of the outer edge of the cylinder head cover 2 is provided, which is expediently molded onto the cylinder head cover 2.
  • a likewise circumferential support ring 4 is introduced, which consists of the same plastic material as the cylinder head cover 2.
  • the support ring 4 is U-shaped, wherein the opening in the support ring facing downward.
  • the support ring 4 is completely enclosed by the material of the sealing element 3, which by way of a spraying method, wherein the sealing elastomer is injected onto the support ring 4, is to accomplish. Due to the U-shape of the support ring 4, the legs of the support ring are also surrounded by sealing material, whereby two sealing legs 5 are formed. Also, the sealing element 3 has one of the shape of the support ring 4 corresponding receptacle with two lateral sealing legs 5. In this recording of the sealing element protrudes when mounted cylinder head cover 2 a projection 6, which is integrally formed with the cylinder head and rises above the top of the cylinder head.
  • the projecting into the U-shaped projection projection 6 is securely received both in the vertical and in the lateral direction, whereby the cylinder head cover 2 is held very stable on the cylinder head 1, without direct contact between the material of the cylinder head cover 2 and the cylinder head. 1 consists. Between cylinder head 1 and cylinder head cover 2 is always sealing material of the sealing element. 3
  • the cylinder head cover 2 is shown in an intermediate stage of the manufacturing process.
  • the support ring 4 is produced in the same operation as the cylinder head cover 2, wherein sprue domes 7 distributed over the circumference for the introduction of the injection molding material for the support ring 4 are provided.
  • a corresponding sprue dome 8 is provided for the production of the cylinder head cover molding.
  • the support ring 4 is connected via narrow connecting webs 9, which are arranged distributed over the circumference of the cylinder head cover 2, connected to the cylinder head cover. These support webs 9 serve as a predetermined breaking point, which can be canceled for releasing the support ring 4 of the cylinder head cover 2.
  • Fig. 3 the cylinder head cover 2 is shown in the same stage of the process as in Fig. 2.
  • the connecting web 9 which only via a small connection point with the outside of a peripheral flange 10th is connected to the cylinder head cover 2.
  • This only weak connection is sufficient to first hold the support ring 4 on the cylinder head cover 2 during the first production step.
  • the connection can be achieved with little effort, so that the support ring 4 is not connected to the cylinder head cover 2, which is shown in Fig. 4.
  • Fig. 5 the cylinder head cover 2 is shown in the assembled state on the cylinder head 1.
  • the sealing element 3 runs along the outer edge of the cylinder head cover 2, into the sealing element 3, the support ring 4 is inserted.
  • the support ring 4 including the connecting webs 9, which now only have a sealing element 3 stabilizing function, are completely encapsulated by the sealing material of the sealing element.
  • the sealing material an elastomer is used as the sealing material.
  • the support ring 4 has at least one opening 11, so that the support ring does not completely rotate and therefore is able to compensate for thermal elongations.
  • This opening 11 is bridged by the sealing material of the sealing element.
  • An additional stabilization in the region of the opening 11 is given over the projection 6, which is part of the cylinder head 1 and projects from below into the U-shaped receptacle of the support ring 4.
  • dome 12 which are part of the cylinder head cover 2 and serve to receive the spark plugs for the internal combustion engine.
  • the dome 12 are encompassed by radial seals 13, which can be performed without stabilizing support ring, but possibly also with such a support ring in the rule.
  • the radial seals 13 are expediently produced in the same operation as the circumferential sealing element 3.
  • plastic oil pans can also be produced by the production process according to the invention.
  • the oil pan is made in the plastic injection molding process with a arranged on the outer edge of the oil pan stabilizing core, wherein the stabilizing core is connected via a connecting point acting as a predetermined breaking point with the oil pan. Subsequently, the stabilizing core is released from the oil sump at the predetermined breaking point and the stabilizing core is encapsulated with an elastomer with simultaneous fixation of the stabilizing core relative to the oil sump.
  • the stabilizing core is expediently designed as a support ring running along the outer edge of the oil sump.
  • the support ring is produced as an independent component and encapsulated with elastomeric material to form a sealing element. Thereafter, the sealing element is inserted into an injection mold for the oil pan and the oil pan is molded onto the sealing element.

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)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Gasket Seals (AREA)
EP05111608A 2004-12-04 2005-12-02 Couvre culasse pour un moteur à combustion interne et procédé de fabrication Withdrawn EP1669583A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004058481A DE102004058481A1 (de) 2004-12-04 2004-12-04 Zylinderkopfhaube für einen Zylinderkopf einer Brennkraftmaschine und Verfahren zur Herstellung einer Zylinderkopfhaube

Publications (2)

Publication Number Publication Date
EP1669583A2 true EP1669583A2 (fr) 2006-06-14
EP1669583A3 EP1669583A3 (fr) 2010-01-06

Family

ID=35892556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111608A Withdrawn EP1669583A3 (fr) 2004-12-04 2005-12-02 Couvre culasse pour un moteur à combustion interne et procédé de fabrication

Country Status (6)

Country Link
US (1) US7281508B2 (fr)
EP (1) EP1669583A3 (fr)
CN (1) CN1782359A (fr)
CA (1) CA2529106A1 (fr)
DE (1) DE102004058481A1 (fr)
MX (1) MXPA05013125A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014906A1 (fr) * 2006-07-31 2008-02-07 Mann+Hummel Gmbh Système de joint entre deux composants
WO2008052610A1 (fr) * 2006-10-30 2008-05-08 Federal-Mogul Sealing Systems Gmbh Système d'étanchéité avec nervure de soutien dans la région de la bride
DE102007002527A1 (de) 2007-01-17 2008-07-31 Federal-Mogul Sealing Systems Bretten Gmbh Dichtelement

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006014281U1 (de) 2006-09-13 2008-02-07 Mann + Hummel Gmbh Dichtungssystem zwischen zwei Bauteilen
US7828302B2 (en) * 2007-08-15 2010-11-09 Federal-Mogul Corporation Lateral sealing gasket and method
JP4749400B2 (ja) * 2007-08-27 2011-08-17 本田技研工業株式会社 強制空冷式内燃機関
DE102007054715A1 (de) 2007-11-14 2009-05-20 Mann + Hummel Gmbh Zylinderkopfhaube für einen Zylinderkopf einer Brennkraftmaschine
DE102008009385A1 (de) 2008-02-14 2009-08-27 Volkswagen Ag Brennkraftmaschine
DE202008014949U1 (de) 2008-11-11 2010-04-15 Mann+Hummel Gmbh Verbindungsrahmen zur Verbindung zweier Bauteile in einem Kraftfahrzeug
DE102009008450B4 (de) * 2009-02-11 2011-07-21 Mann + Hummel GmbH, 71638 Filterelement und Filtersystem
DE102015202336A1 (de) * 2015-02-10 2016-08-11 Volkswagen Aktiengesellschaft Zylinderkopfhaube für eine Verbrennungskraftmaschine
DE102016005354A1 (de) * 2016-05-03 2017-11-09 Mann+Hummel Gmbh Filtereinrichtung, insbesondere Gasfilter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687975A (en) * 1996-08-21 1997-11-18 Fel-Pro Incorporated Sealing assembly employing oppositely directed wedges and complementary recesses
DE19728947A1 (de) * 1997-07-07 1999-01-14 Audi Ag Brennkraftmaschine mit einem Zylinderkopf
US5957100A (en) * 1997-02-21 1999-09-28 Dichtungstechnik G. Bruss Gmbh & Co. Kg Method for manufacturing a cylinder head cover for a combustion engine and a cylinder head cover
US6039323A (en) * 1998-02-11 2000-03-21 Fel-Pro Incorporated Rubber molded gasket with compression limiter
DE10105625A1 (de) * 2001-02-08 2002-08-29 Elringklinger Ag Dichtung
US20020170775A1 (en) * 2001-04-24 2002-11-21 Stein Hans-Joachim Vom Lid for muffling noises produced by an internal combustion engine, and method for producing such lid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511518A (en) * 1994-11-02 1996-04-30 Fel-Pro Incorporated Sealing assembly with undercut groove
US5513603A (en) * 1995-08-11 1996-05-07 Chrysler Corporation Seal and fastener isolator system for a valve cover
DE19738275B4 (de) 1997-09-02 2006-02-23 Cr Elastomere Gmbh Dichtung für Deckel von Brennkraftmaschinen
US6520134B1 (en) * 2001-10-11 2003-02-18 Dana Corporation Screen printable foam coating for sealing and vibration isolation of cam cover baffles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687975A (en) * 1996-08-21 1997-11-18 Fel-Pro Incorporated Sealing assembly employing oppositely directed wedges and complementary recesses
US5957100A (en) * 1997-02-21 1999-09-28 Dichtungstechnik G. Bruss Gmbh & Co. Kg Method for manufacturing a cylinder head cover for a combustion engine and a cylinder head cover
DE19728947A1 (de) * 1997-07-07 1999-01-14 Audi Ag Brennkraftmaschine mit einem Zylinderkopf
US6039323A (en) * 1998-02-11 2000-03-21 Fel-Pro Incorporated Rubber molded gasket with compression limiter
DE10105625A1 (de) * 2001-02-08 2002-08-29 Elringklinger Ag Dichtung
US20020170775A1 (en) * 2001-04-24 2002-11-21 Stein Hans-Joachim Vom Lid for muffling noises produced by an internal combustion engine, and method for producing such lid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014906A1 (fr) * 2006-07-31 2008-02-07 Mann+Hummel Gmbh Système de joint entre deux composants
WO2008052610A1 (fr) * 2006-10-30 2008-05-08 Federal-Mogul Sealing Systems Gmbh Système d'étanchéité avec nervure de soutien dans la région de la bride
DE102006051175B4 (de) * 2006-10-30 2012-08-30 Federal-Mogul Sealing Systems Gmbh Dichtsystem mit Stützsteg im Flanschbereich
DE102007002527A1 (de) 2007-01-17 2008-07-31 Federal-Mogul Sealing Systems Bretten Gmbh Dichtelement

Also Published As

Publication number Publication date
DE102004058481A1 (de) 2006-06-14
CA2529106A1 (fr) 2006-06-04
US20060118073A1 (en) 2006-06-08
MXPA05013125A (es) 2006-09-14
US7281508B2 (en) 2007-10-16
CN1782359A (zh) 2006-06-07
EP1669583A3 (fr) 2010-01-06

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