EP1630398B1 - Joint pour la zone de contact des ensembles d'un moteur à combustion interne soumise a la contact-corrosion - Google Patents

Joint pour la zone de contact des ensembles d'un moteur à combustion interne soumise a la contact-corrosion Download PDF

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Publication number
EP1630398B1
EP1630398B1 EP20050015843 EP05015843A EP1630398B1 EP 1630398 B1 EP1630398 B1 EP 1630398B1 EP 20050015843 EP20050015843 EP 20050015843 EP 05015843 A EP05015843 A EP 05015843A EP 1630398 B1 EP1630398 B1 EP 1630398B1
Authority
EP
European Patent Office
Prior art keywords
seal
contact surface
surface area
combustion engine
region
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
EP20050015843
Other languages
German (de)
English (en)
Other versions
EP1630398A1 (fr
Inventor
Anton Finkenzeller
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 EP1630398A1 publication Critical patent/EP1630398A1/fr
Application granted granted Critical
Publication of EP1630398B1 publication Critical patent/EP1630398B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0062—Gaskets

Definitions

  • the present invention relates, according to the preamble of claim 1, a seal which at the contact surface area of contact corrosion endangered.
  • Components of an internal combustion engine is arranged (see, eg US Pat. No. 6,485,242 B1 ).
  • crankcase of internal combustion engines have been often made of gray cast iron and to reduce the mass of the crankcase often already made of an aluminum alloy. Due to the convenience of driving accessories of motor vehicles, the total mass of such a motor vehicle has been steadily increasing for many years. Due to the overall mass of such a vehicle, which also has to be accelerated, this leads to increasing consumption values.
  • the present invention is based on the object of providing a seal for the contact surface area of components susceptible to contact corrosion of an internal combustion engine, which avoids the problem of electrochemical component corrosion.
  • the invention provides a seal which is arranged on the contact surface area of components susceptible to contact corrosion of an internal combustion engine and has at least two circumferential sealing elements which enclose the contact surface area and prevent the penetration of moisture into the contact area area.
  • the invention provides a gasket which includes the contact surface area, which is susceptible to electrochemical building corrosion, between components of an internal combustion engine made of different materials and prevents the penetration of moisture into this contact area area.
  • the seal provided according to the invention prevents the penetration of moisture into the contact surface area and the penetration of dirt or the like in this contact surface area, since such an internal combustion engine is exposed under normal conditions dirt, dust or the like and this dirt or dust and the adhesion of Promotes moisture and thus the invention by the removal of dust or dirt from the contact surface area effectively avoids the problem of electrochemical corrosion of the component, since no damp dirt bridge between the existing components of different materials of the internal combustion engine can build.
  • the area between the two sealing elements is formed from a material which has excellent corrosion resistance to the components in the contact surface area. This is avoided by the inventive seal that a medium for the electrochemical component corrosion is created by the introduction of the seal in the contact surface area.
  • the area between the two sealing elements and the two sealing elements are at least partially formed of an elastomeric material or a plastic material, which also existing composites are possible.
  • crankcase or parts thereof of an internal combustion engine are made of a magnesium-containing alloy, such as MgAlMn, so are attached to the crankcase from the outside, a plurality of auxiliary units or functional components. Since these additional units or functional components to reduce the mass of the vehicle may in turn be formed from a material which forms a potential difference in direct contact with the magnesium alloy in the presence of water or moisture, it is also provided according to a development of the invention that the seal has a largely peripheral edge region, prevents the formation of a moisture bridge between components susceptible to corrosion in a region adjacent to the contact surface area.
  • a magnesium-containing alloy such as MgAlMn
  • the largely peripheral edge region provided on the seal also prevents the formation of a moisture bridge between components susceptible to corrosion in a region adjoining the contact surface region.
  • the seal according to the invention can be preassembled, for example, by means of a flange made of an aluminum alloy on a coolant line and the peripheral edge region prevents the formation of a moisture bridge or damp mud bridge between the flange and the surrounding crankcase made of a magnesium alloy, after the coolant line to the internal combustion engine by means Fittings has been attached.
  • the coolant line mentioned as an example can be present as a prefabricated unit with the mounting component in the form of a flange and the seal for rapid assembly, according to a further development of the invention it is additionally provided that the edge region of the seal is a bead which at least partially overlaps the mounting component owns, by means of the seal can be releasably fixed to the mounting component, so that the relative position of the seal is defined on the mounting member and it can not happen during assembly of the engine that the seal detaches from the flange.
  • FIG. 1 The drawing shows in a partially sectioned view an embodiment of a seal 1 according to the present invention.
  • the reference numeral 2 denotes a joint gap between components susceptible to corrosion of an internal combustion engine.
  • the term "aluminum” refers to the area of an aluminum alloy component, which may be, for example, AlSiCu alloy.
  • the area “magnesium” refers to the area of a component that may be a component made from a MgAIMn alloy.
  • the component denoted by “magnesium” can be, for example, a crankcase of an internal combustion engine made of said magnesium alloy, while the component denoted by “aluminum” is can act in the crankcase made of said aluminum alloy inner engine.
  • seal 1 has a cup-shaped configuration in general. Through the passage 3, a closer in Fig. 3 shown coolant line 4 pass, can be led out through the coolant from the made of an aluminum alloy inner engine through a passage of the crankcase 5.
  • Reference numeral 6 denotes the contact surface area at which the component corrosion-prone areas of the aluminum alloy and the magnesium alloy come into contact. If, for example, due to the accumulation of dust and water, a moist dirt bridge would be created in this area, an electrochemical corrosion of the component would be the immediate consequence, ie the gradual destruction of the metallic materials would occur.
  • the seal 1 of the invention comprises two, the contact surface area 6 enclosing üm Sugarde sealing elements 7, 8 in the form, for example, in Fig. 1 and 2 shown sealing lips 7, 8. At the, the two sealing lips 7, 8 opposite, for example, a flange goggles associated side are in the in Fig. 1 and 2 illustrated embodiment complementary sealing lips 7 ', 8' is provided.
  • the area of the seal 1 facing the contact surface region 6 was the same as the two sealing elements 7, 7 ', 8, 8' formed from an elastomeric material which was molded onto a carrier body 9 formed, for example, of a plastic material.
  • the drawing extends from the two circumferential sealing elements 7, 8 having plane a 90 degrees angled circumferential edge portion 11, on which a, a mounting component cross-over Bead 10 is formed, by means of which the seal 1 can be releasably secured to the mounting member.
  • This mounting component may be the in Fig. 3
  • Flanschbrille 12 act by means of which the coolant line 4 and the seal 1 to the crankcase 5 through holes 13 passing through screws can be attached.
  • the seal 1 is shown without the circumferential bead 10
  • the in Fig. 1 or 2 illustrated embodiment of the seal 1 are used for this purpose, so that the circumferential bead 10 rests against the Flanschbrille 12 and acts, for example, when mounting on the crankcase 5 as captive.
  • the cup-shaped configuration of the edge region 11 beyond the flange gland 12 ensures that it can not form a moist dirt bridge between the flange gland 12, for example made of an aluminum alloy or a steel alloy, and the crankcase 5 made of the magnesium alloy.
  • Fig. 4 The drawing shows a section of an embodiment of a seal which is formed in this embodiment as a sump seal 14.
  • the arrangement of the oil pan seal 14 is based on Fig. 5 the drawing can be seen.
  • the oil sump gasket 14 has an inner circumferential sealing lip 15 and an outer circumferential sealing lip 16.
  • the two circumferential sealing lips 15, 16 thereby seal the contact surface area 17 between the crankcase 5 made of a magnesium alloy and an oil sump 18 made of an aluminum alloy.
  • the inner sealing lip 15 also serves to seal the oil pan 15 to the outside.
  • the drawing also show a the oil sump seal 14 outboard peripheral edge region 19, for example, an elastomeric material or a plastic material or a composite material formed therefrom, wherein the edge region 19 prevents a moist mud flap between the outside of the made of aluminum alloy sump 18 and the outside of the magnesium alloy made of housing 5 can form.
  • edge region 19 prevents a moist mud flap between the outside of the made of aluminum alloy sump 18 and the outside of the magnesium alloy made of housing 5 can form.
  • the seal provided according to the invention eliminates the problem of electrochemical component corrosion between components susceptible to contact corrosion of the illustrated internal combustion engine.
  • the gasket according to the invention can also be arranged in each case specifically adapted to the place of use between other parts of the internal combustion engine in contact corrosion.

Landscapes

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

Claims (4)

  1. Joint (1, 14) équipant une zone de surfaces de contact (6, 17) de pièces d'un moteur à combustion interne exposées à la corrosion par contact,
    - le joint (1, 14) ayant au moins un premier et un second élément d'étanchéité (7, 8; 15, 16) périphérique, en relief,
    - la zone de surfaces de contact (6, 17) à l'état assemblé du joint (1) étant enfermée entre le premier et le second élément d'étanchéité (7, 8; 15, 16),
    - le premier et le second élément d'étanchéité (7, 8; 15, 16) étant pressés sur les pièces exposées à la corrosion par contact de façon que le premier et le second élément d'étanchéité (7, 8; 15, 16) s'applique chacun sur une pièce pour éviter la pénétration d'humidité dans la zone de surfaces de contact (6, 17),
    joint (1, 14) caractérisé en ce qu'
    il comporte une zone de bord périphérique (11, 19) radialement à l'extérieur évitant la formation d'un pont d'humidité entre les pièces exposées à la corrosion par contact dans une zone voisine ou adjacente de la zone des surfaces de contact (6, 17),
    - la zone de bord (11) faisant un angle pratiquement droit par rapport au plan des éléments d'étanchéité (7, 8), et entourant une pièce de montage (12) servant à fixer le joint (1) au moteur à combustion interne.
  2. Joint selon la revendication 1,
    caractérisé en ce qu'
    une zone du joint (1, 14) entre le premier et le second élément d'étanchéité (7, 8; 15, 16) est en un matériau résistant à la corrosion vis-à-vis des pièces dans la zone de surfaces de contact (6, 17).
  3. Joint selon la revendication 2,
    caractérisé en ce que
    la zone et le premier et le second élément d'étanchéité (7, 8; 15, 16) sont réalisés au moins par segments en un élastomère ou en une matière plastique ou en un matériau composite.
  4. Joint selon l'une des revendications 1 à 3,
    caractérisé en ce que
    la zone de bord (11) comporte un bourrelet (10) qui dépasse au moins par zones la pièce de montage (12), et par lequel le joint (1) est fixé de manière amovible à la pièce de montage (12).
EP20050015843 2004-08-28 2005-07-21 Joint pour la zone de contact des ensembles d'un moteur à combustion interne soumise a la contact-corrosion Expired - Fee Related EP1630398B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410041710 DE102004041710A1 (de) 2004-08-28 2004-08-28 Dichtung für den Kontaktflächenbereich von kontaktkorrosionsgefährdeten Bauteilen einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1630398A1 EP1630398A1 (fr) 2006-03-01
EP1630398B1 true EP1630398B1 (fr) 2011-07-06

Family

ID=35445963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050015843 Expired - Fee Related EP1630398B1 (fr) 2004-08-28 2005-07-21 Joint pour la zone de contact des ensembles d'un moteur à combustion interne soumise a la contact-corrosion

Country Status (2)

Country Link
EP (1) EP1630398B1 (fr)
DE (1) DE102004041710A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022002942A1 (de) 2022-08-11 2022-10-13 Mercedes-Benz Group AG Gehäuse zur Aufnahme zumindest einer elektrischen und/oder elektronischen Komponente

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183267A (en) * 1987-12-10 1993-02-02 Chicago Rawhide Manufacturing Co. Seal for sending unit
DE4437341C2 (de) * 1994-10-19 1997-07-31 Ford Werke Ag Befestigungsanordnung für Deckel an Maschinen
JP3299526B2 (ja) * 1999-09-03 2002-07-08 本田技研工業株式会社 Ｍｇ合金製ケースにおける通し孔の閉鎖構造
DE10065202A1 (de) * 2000-12-20 2002-07-11 Elringklinger Gmbh Dichtung
DE10065199A1 (de) * 2000-12-20 2002-07-11 Elringklinger Gmbh Dichtung
DE10105625C5 (de) * 2001-02-08 2007-10-31 Elringklinger Ag Dichtung
US6543787B1 (en) * 2001-03-28 2003-04-08 Dana Corporation Boundary gasket with waffle pattern sealing beads
DE10248396C5 (de) * 2002-10-17 2014-05-28 Elringklinger Ag Dichtung
JP2004162550A (ja) * 2002-11-11 2004-06-10 Uchiyama Mfg Corp イオンセンサ付ガスケット

Also Published As

Publication number Publication date
EP1630398A1 (fr) 2006-03-01
DE102004041710A1 (de) 2006-03-02

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