GB2328990A - Seal for covers of internal combustion engines - Google Patents
Seal for covers of internal combustion engines Download PDFInfo
- Publication number
- GB2328990A GB2328990A GB9817998A GB9817998A GB2328990A GB 2328990 A GB2328990 A GB 2328990A GB 9817998 A GB9817998 A GB 9817998A GB 9817998 A GB9817998 A GB 9817998A GB 2328990 A GB2328990 A GB 2328990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seal
- attachment flange
- attachment
- cover
- projection
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 9
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- 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
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)
- Gasket Seals (AREA)
Abstract
An elastic seal for static sealing of the thin-walled cover 1 of an internal combustion engine, such as a valve cover or cylinder head cover, which has a surrounding attachment flange 2 with a surrounding groove 5 or the like for reception of the elastic seal 6. In order to facilitate manufacture and repair and to achieve an interlocking attachment of the seal 6 to the cover 1, the elastic seal 6 has a projection 9 engaging round the outer edge 8 of the attachment flange 2, while a hook-shaped collar 10 of the projection 9 engages behind the attachment flange 2.
Description
2328990 - i -
Description
Seal for covers of internal combustion engines 1 -1 The present invention relates to an elastic seal for static sealing of a thin-walled cover of an internal combustion engine, such as a valve cover or cylinder head cover for example, where the thinwalled cover has a surrounding attachment flange with means for receiving the elastic seal.
Thin-walled covers for internal combustion engines, such a valve covers or cylinder head covers for example, comprise elastic seals for static sealing. The known seals on cylinder head covers are as a rule snap fitted or vulcanised directly on to the cylinder head cover. The elastomer in vulcanised on seals is either injection moulded into an existing groove and mechanically wedged in (DE 4 202 860) or it is bonded to the surface by an adhesive (GB 1 263 077) However the adhesive should be dispensed with if possible to allow replacement of the seal in the case of repair. Mechanical wedging-in is only usable to a limited extent, because the cover material has to deform well for this. However the cover materials which are employed as a rule are brittle cast alloys, which tend to form cracks. Elastomers which have good self-adhesion to the cover material are preferably considered for mechanically anchored seals.
In the course of manufacture of the known cylinder head covers with seals, a sticky layer builds up on the mould surface of the vulcanising is torn out of a groove cylinder head cover destroyed. In order to be taken 1 -1 mould after some time. The adhesion of the seal to the vulcanising mould is then stronger than the adhesion to the cylinder head cover, so that the seal during the removal of th the mould and thus oid this the vulcanising ntervals and nterference with e f rom.
to av mould has apart at regular cleaned, which leads to undesirable i production.
The object of the present invention is to provide a seal of the kind initially referred to have the recited disadvantages of the interlocking clamping chieved.
which does not known designs and of the seal to the This object,nvention in that more projections the attachment flange, the or each projection having a hook-shaped collar which engages behind the attachment flange.
Where there these projections on the periphery o the whole peripher also possible the region of flange of the holes. In the one piece with attachment in which an cover is a is met according the elastic seal which engage round the outer edge of to the present comprises one or is a plurality of projections can be arranged only at some places f the attachment flange or run over v of the attachment 'flange; it is arrange that to the attachmen cover engage latter case elastic ele screws for soli pro- ection or these projections in holes through the seal ments for d-borne s The projecti clamp round the attachment flange i manner and thus fix the seal on in the attachment these attachment can be designed in insulation of the ound.
ons on the seal n interlockIng cover. The seal - 3 1 1 cl ) 1, with the one or more projections can be made separately and then be pulled on to the attachment flange; however it is advantageous to injection mould and vulcanise this seal round the attachment flange of the cover, whereby the seal can be retained by the attachment flange and cannot be torn away when opening the vulcanising mould.
If in addition the attachment holes are also injection moulded the retention is further improved.
An embodiment of the invention is shown in the accompanying drawings, in which:
Figure 1 shows a portion of the seal according to the invention for a cylinder head cover, in cross section away from the attachment holes and Figure 2 shows a corresponding portion in the region of an attachment hole for fixing the cylinder head cover on the engine block of an internal combustion engine.
The cylinder head cover 1, not shown in detail serves to cover the valve chamber of an internal combustion engine. The cylinder head cover 1 comprises a surrounding attachment flange 2, which is provided with a plurality of attachment holes 3 for reception of attachment screws 4, by means of whIch the cylinder head cover 1 is fixedly attached to the engine block, not shown, of the internal combustion engine. The static seal between the cylinder head cover 1 and the engine block is 3 effected by the seal 6 arranged in a surrounding groove 5 in the attachment flange 2. This seal 6, which is preferably made from an elastomer, has a sealing lip 7 protruding in the direction of the engine block and a projection 9 engag.,ng round the -.1 outer edge 8 of the attachment flange 2, which projection has a collar 10 engaging behind the surface 11 of the attachment flange 2 facing away from the engine block. The collar 1.0 is hook-shaped in cross section to engage in another surrounding groove in the surface 11. The seal 6 is thus connected, in interlocking manner to the attachment lange 2.
In the region of the attachment holes 3 the material of the elastic seal 0' penetrates through the attachment hole 3, apart from a bore 12 for reception of the attachment screw 4 and thus forms an elastic element 14 surrounding the shank 13 of the screw for -nsulation against solid-borne sound.
The projection flange 2 is provide 9 running round the attachment with a likewise surrounding support lip 15 for supporting a sound insulating cover 16, not shown in detail, as well as a detent ' -Lp, 171 which engages in a recess 18 in the sound insulating cover 16 and connects this to the cylinder head cover 1.
- 3
Claims (6)
1. An elastic seal for static sealing of a thinwalled cover of an internal combustion engine, where the thin walled cover has a surrounding attachment flange with means for receiving the elastic seal, characterized in that the elastic seal comprises one or more projections engaging round the outer edge of the attachment flange, the or each projection having hookshaped collar which engages behind the attachment flange.
2. A static seal according to claim 1, characterized in that there is a plurality of the projections and the projections are arranged distributed at some places only on the periphery of the attachment flange.
3. A static seal according to claim 1, characterized in that there is a single projection and the single projection runs over the whole periphery of the attachment flange.
4. A static seal according to any one of claims 1 to 3, characterized in that the projection or projections penetrate through attachment holes provided in the said attachment flange.
5. A static seal according to any of claims 1 to 4, characterized in that the seal is formed by being injection moulded round the said attachment flange.
6. A static seal according to any preceding claim, characterised in that the means for receiving the elastic seal comprise a surrounding groove.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997138275 DE19738275B4 (en) | 1997-09-02 | 1997-09-02 | Seal for engine covers |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9817998D0 GB9817998D0 (en) | 1998-10-14 |
| GB2328990A true GB2328990A (en) | 1999-03-10 |
| GB2328990B GB2328990B (en) | 2001-05-30 |
Family
ID=7840925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9817998A Expired - Fee Related GB2328990B (en) | 1997-09-02 | 1998-08-18 | Seal for covers of internal combustion engines |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE19738275B4 (en) |
| ES (1) | ES2145717B1 (en) |
| FR (1) | FR2767869B1 (en) |
| GB (1) | GB2328990B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7316214B2 (en) * | 2004-03-02 | 2008-01-08 | Ab Skf | Cover for tightly sealing a device |
| US7789055B2 (en) * | 2004-03-02 | 2010-09-07 | Ab Skf | Connection between an elastomeric element and a further element and method for producing such connection |
| US7827950B2 (en) | 2007-06-27 | 2010-11-09 | Federal-Mogul Corporation | Valve cover assembly and method of construction |
| US11280361B2 (en) | 2019-04-12 | 2022-03-22 | Mahle International Gmbh | Fastening device, a component comprising the fastening device, and method for pre-assembling the fastening device |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10119892C2 (en) * | 2001-04-24 | 2003-04-03 | Skf Ab | Cover, in particular for damping the noise of an internal combustion engine |
| DE10141569B4 (en) * | 2001-08-24 | 2004-09-02 | Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg | Housing cover with acoustically decoupled stop |
| DE10141570B4 (en) | 2001-08-24 | 2004-09-02 | Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg | Housing cover with device for securing the sealing forces |
| DE10306211A1 (en) | 2003-02-13 | 2004-08-26 | Mann + Hummel Gmbh | Valve cover seal for sealing a connection between a thin-walled molded part and a second molded part has a flexible sealing lip on a seal to fit between both molded parts |
| DE102004034235B4 (en) | 2004-07-15 | 2006-09-21 | Federal-Mogul Sealing Systems Bretten Gmbh | Component with integrated seal |
| DE102004058481A1 (en) | 2004-12-04 | 2006-06-14 | Mann + Hummel Gmbh | Cylinder head cover for a cylinder head of an internal combustion engine and method for producing a cylinder head cover |
| DE202005010448U1 (en) | 2005-06-30 | 2006-11-09 | Mann + Hummel Gmbh | poetry |
| DE202006011816U1 (en) * | 2006-07-31 | 2007-12-13 | Mann + Hummel Gmbh | Sealing system between two components |
| DE102006039355A1 (en) * | 2006-08-22 | 2008-03-13 | Reinz-Dichtungs-Gmbh | Cylinder head cover for internal combustion engine has seal arranged in first peripheral groove along connecting line of upper and lower shells, each of which forms lateral leg of first groove |
| DE202006014707U1 (en) * | 2006-09-21 | 2008-02-14 | Mann+Hummel Gmbh | Seal for a tight connection of two molded parts |
| DE102015220370A1 (en) * | 2015-10-20 | 2017-04-20 | Elringklinger Ag | Fastening device and method for fastening a component to another component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4192520A (en) * | 1978-01-30 | 1980-03-11 | Toyota Jidosha Kogyo Kabushiki Kaisha | Seal structure |
| EP0133401A1 (en) * | 1983-08-04 | 1985-02-20 | Societe Anonyme Des Usines Chausson | Connection device between a tube end plate and a header box of a heat exchanger, and method therefor |
| EP0200358A2 (en) * | 1985-04-01 | 1986-11-05 | ITW Limited | Sealing washers |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1263077A (en) * | 1968-04-26 | 1972-02-09 | John Vickers And Sons Ltd | Improvements in machinery covers |
| US4067531A (en) * | 1976-07-22 | 1978-01-10 | Derre & Company | Vibration isolation and sealing gasket |
| FR2431651A1 (en) * | 1978-07-18 | 1980-02-15 | Berliet Automobiles | Shock absorbing seal between block and sump housing in IC engine - uses bolted asymmetric trough section collar to locate downturned sump flange in wrap-round seal |
| DE4202860C2 (en) * | 1992-02-01 | 1995-08-24 | Goetze Elastomere Gmbh | Method for producing a seal for the valve cover of an internal combustion engine and valve cover produced thereafter |
| DE4242265C1 (en) * | 1992-12-15 | 1994-08-18 | Goetze Ag | Valve cover |
| US5513603A (en) * | 1995-08-11 | 1996-05-07 | Chrysler Corporation | Seal and fastener isolator system for a valve cover |
| EP0860602B1 (en) * | 1997-02-21 | 2001-11-21 | Dichtungstechnik G. Bruss GmbH & Co. KG | Method for making a cylinder head cover for an internal combustion engine and cylinder head cover |
-
1997
- 1997-09-02 DE DE1997138275 patent/DE19738275B4/en not_active Expired - Fee Related
-
1998
- 1998-08-17 ES ES9801773A patent/ES2145717B1/en not_active Expired - Fee Related
- 1998-08-18 GB GB9817998A patent/GB2328990B/en not_active Expired - Fee Related
- 1998-08-31 FR FR9810861A patent/FR2767869B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4192520A (en) * | 1978-01-30 | 1980-03-11 | Toyota Jidosha Kogyo Kabushiki Kaisha | Seal structure |
| EP0133401A1 (en) * | 1983-08-04 | 1985-02-20 | Societe Anonyme Des Usines Chausson | Connection device between a tube end plate and a header box of a heat exchanger, and method therefor |
| EP0200358A2 (en) * | 1985-04-01 | 1986-11-05 | ITW Limited | Sealing washers |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7316214B2 (en) * | 2004-03-02 | 2008-01-08 | Ab Skf | Cover for tightly sealing a device |
| US7789055B2 (en) * | 2004-03-02 | 2010-09-07 | Ab Skf | Connection between an elastomeric element and a further element and method for producing such connection |
| US7827950B2 (en) | 2007-06-27 | 2010-11-09 | Federal-Mogul Corporation | Valve cover assembly and method of construction |
| US11280361B2 (en) | 2019-04-12 | 2022-03-22 | Mahle International Gmbh | Fastening device, a component comprising the fastening device, and method for pre-assembling the fastening device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2145717A1 (en) | 2000-07-01 |
| FR2767869B1 (en) | 2000-12-29 |
| DE19738275A1 (en) | 1999-03-04 |
| GB9817998D0 (en) | 1998-10-14 |
| ES2145717B1 (en) | 2000-12-16 |
| GB2328990B (en) | 2001-05-30 |
| DE19738275B4 (en) | 2006-02-23 |
| FR2767869A1 (en) | 1999-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20150818 |