SE502513C2 - Head gasket - Google Patents

Head gasket

Info

Publication number
SE502513C2
SE502513C2 SE9401401A SE9401401A SE502513C2 SE 502513 C2 SE502513 C2 SE 502513C2 SE 9401401 A SE9401401 A SE 9401401A SE 9401401 A SE9401401 A SE 9401401A SE 502513 C2 SE502513 C2 SE 502513C2
Authority
SE
Sweden
Prior art keywords
head gasket
cylinder head
rubber
steel plate
thickness
Prior art date
Application number
SE9401401A
Other languages
Swedish (sv)
Other versions
SE9401401L (en
SE9401401D0 (en
Inventor
Percy Josefsson
Original Assignee
Trelleborg Rubore Ab
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 Trelleborg Rubore Ab filed Critical Trelleborg Rubore Ab
Priority to SE9401401A priority Critical patent/SE502513C2/en
Publication of SE9401401D0 publication Critical patent/SE9401401D0/en
Priority to CZ19963022A priority patent/CZ286582B6/en
Priority to EP95918228A priority patent/EP0760902B1/en
Priority to PCT/SE1995/000443 priority patent/WO1995029333A1/en
Priority to DK95918228T priority patent/DK0760902T3/en
Priority to CA002186629A priority patent/CA2186629C/en
Priority to AU24224/95A priority patent/AU2422495A/en
Priority to HU9602939A priority patent/HU218781B/en
Priority to ES95918228T priority patent/ES2129821T3/en
Priority to AT95918228T priority patent/ATE178121T1/en
Priority to DE69508578T priority patent/DE69508578T2/en
Publication of SE9401401L publication Critical patent/SE9401401L/en
Publication of SE502513C2 publication Critical patent/SE502513C2/en
Priority to GR990400594T priority patent/GR3029793T3/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00Arrangements of sealings in combustion engines 
    • F02F11/002Arrangements of sealings in combustion engines  involving cylinder heads

Abstract

The present invention relates to a cylinder head gasket for internal combustion engines. According to the invention, the gasket comprises a laminate which consists in a thin stainless steel plate or a heat-resistant steel plate that is coated on each side with still thinner carrier-calendared rubber films which have a thickness of at least 0.05 mm and which are affixed to the steel plate by vulcanization. The steel plate suitably has a thickness of about 0.2 to 0.4 mm and the rubber films each have a thickness of at least 0.05 to 0.20 mm.

Description

502 513' 10 15 20 25 30 dvs. vara så tätande som möjligt vid de svåra förhållanden som råder för en topplockspackning. 502 513 '10 15 20 25 30 ie. be as tight as possible in the difficult conditions prevailing for a cylinder head gasket.

Föreliggande uppfinning har som syfte att tillhandahålla en topplockspack- ning som uppfyller de ovan nämnda högt ställda önskemålen för packningar i moderna motorer under mycket avancerade driftsförhållanden. l detta syfte har topplockspackningen enligt uppfinningen de kännetecknande drag som framgår av de tillhörande patentkraven.The present invention has for its object to provide a cylinder head gasket which meets the above-mentioned high requirements for gaskets in modern engines under very advanced operating conditions. To this end, the cylinder head gasket according to the invention has the characterizing features which appear from the appended claims.

Topplockspackningen enligt uppfinningen kännetecknas således av att den innefattar ett laminat bestående av en tunn plåt av rostfritt och/eller vär- mebeständigt stål. Plåten är på vardera sidan belagd med ännu tunnare, men åtminstone 0,05 mm tjocka, bärarkalandrerade gummifilmer, som är sammanvulkaniserade med stålplåten.The cylinder head gasket according to the invention is thus characterized in that it comprises a laminate consisting of a thin sheet of stainless and / or heat-resistant steel. The plate is coated on each side with even thinner, but at least 0.05 mm thick, carrier-calendered rubber films, which are vulcanized together with the steel plate.

Den rostfria och/eller värmebeständiga stålplåten har lämpligen en tjocklek av ca 0,2-O,4 mm och gummifilmerna företrädesvis vardera'0,05-O,2O mm, Den utåt vettande delen hos gummifilmerna skall lämpligen uppvisa textil- bärarstruktur och helst vara av knottrig typ.The stainless and / or heat-resistant steel sheet preferably has a thickness of about 0.2-0.4 mm and the rubber films are preferably each 0.05-0.2 mm. The outwardly facing part of the rubber films should suitably have a textile carrier structure and preferably be of gnarled type.

Genom den specifika kombination av kännetecknande drag som framgår av patentkraven ges topplockspackningen också en unik kombination av egenskaper som kompressibilitet, god skjuvningsupptagande förmåga och genomblåsníngsmotstånd (tätningsförmåga). Det är således viktigt att gum- miskikten dels har de specifika egenskaper och den specifika struktur som i bärarkalandrerade gummifilmer uppvisar, bl.a. en homogenitet och jämnhet vad gäller såväl fysikaliska egenskaper som dimensioner, och exempelvis vara så porfri som möjligt, och att de anbringats på plåten med hjälp av bärare, vilket tillförsäkrar en mycket god och framför allt plan anliggning mot plåtytan utan tendenser till några ojämnheter i anliggningsytorna och som dessutom medger att ytterytan har en sådan struktur som ges genom val av bärare, där det visat sig särskilt gynnsamt när den ytstruktur som erhålles när textilbärare, exempelvis med sk linnestruktur, använts vid kalandrering och vulkanisering. Den närmast knottriga ytterytan har näm- 10 15 20 25 30 4502 513 ligen överraskande visat sig ge förbättrad anliggning och tätning mot metallytor. Med dessa förutsättningar kan också sammanvulkaniseringen ske utan problem vad gäller hållfastheten i gummiplåtskarven. Tillverknings- sättet med hjälp av bärare och med bandvulkmaskin är detsamma som be- skrives i ett tidigare av våra patent, som exempelvis publicerats som EP- A~59460l (WO 91/13758.Due to the specific combination of characterizing features stated in the claims, the cylinder head gasket is also given a unique combination of properties such as compressibility, good shear-absorbing ability and blow-through resistance (sealing ability). It is thus important that the rubber layers have the specific properties and the specific structure that in carrier calendered rubber films show, e.g. a homogeneity and evenness in terms of both physical properties and dimensions, and for example be as pore-free as possible, and that they are applied to the plate with the help of carriers, which ensures a very good and above all flat abutment against the plate surface and which furthermore allows the outer surface to have such a structure which is given by choice of carrier, where it has proved particularly favorable when the surface structure obtained when textile carrier, for example with so-called linen structure, has been used in calendering and vulcanization. Namely, the almost gnarled outer surface has surprisingly been found to provide improved abutment and sealing against metal surfaces. With these conditions, the co-vulcanization can also take place without problems in terms of the strength of the sheet metal joint. The manufacturing method with the aid of a carrier and with a belt vulcanizing machine is the same as described in an earlier one of our patents, which was published, for example, as EP-A-594601 (WO 91/13758.

Uppfinningen skall nedan närmare presenteras i form av några exempel som beskriver olika försök som genomförts med materialet.The invention will be presented in more detail below in the form of some examples which describe various experiments carried out with the material.

Exempel 1 Laminat med 0,20 mm plåt av rostfritt stål och två 0,08 mm gummiskikt utsattes för ett kompressibilitetstest enligt följande: Paket av 10 st 40 x 40 mm stora materialprov utsattes vid rumstemperatur för ett tryck av 16,5 MPa med en kraft av 2,4 kN. Detta upprepades sju gånger med trycket bibehållet under l_ sekund. Paketet av laminatprov sam- mantrycktes därvid 16 /um, vilket motsvarar en specifik kompressibilitet av 2 /um/IO mPa.Example 1 Laminate with 0.20 mm sheet of stainless steel and two 0.08 mm rubber layers was subjected to a compressibility test as follows: Packages of 10 x 40 mm large material samples were subjected at room temperature to a pressure of 16.5 MPa with a force of 2.4 kN. This was repeated seven times with the pressure maintained for 1 second. The package of laminate samples was then compressed to 16 .mu.m, which corresponds to a specific compressibility of 2 .mu.m / 10 mPa.

Exempel 2 Ett försök gjordes under 24 timmar med en 4-cylinders, 2 liters, 16 ventils, SAAB 9000 motor med bränsleinsprutning, varvid motorn preparerades genom sänkning av kolvhuvudena att mottaga en tunnare topplockspackning framställd av ett laminat enligt uppfinningen.Example 2 An experiment was performed for 24 hours with a 4-cylinder, 2 liter, 16 valve, SAAB 9000 engine with fuel injection, the engine being prepared by lowering the piston heads to receive a thinner cylinder head gasket made of a laminate according to the invention.

Packningen framställdes av ett enda laminat av 0,08 mm gummi / 0,2 mm rostfritt stål / 0,08 mm gummi av kvalitet Rubore RGM-1-ST.The gasket was made from a single laminate of 0.08 mm rubber / 0.2 mm stainless steel / 0.08 mm rubber of quality Rubore RGM-1-ST.

Motorn kördes i bänk enligt ett testprogram som simulera motorvägskörning, innefattande långa perioder av full belastning vid maximalt varvtal, liksom maximalt vridmoment, blandat med mellanbelastningsperioder och avbrutet av en tomgångsperiod var 30:e minut. lnga som helst ogynnsamma effekter vad gäller den normala funktionen hos packningen kunde noteras under försöken.The engine was run on a bench according to a test program that simulates highway driving, including long periods of full load at maximum speed, as well as maximum torque, mixed with intermediate load periods and interrupted by an idle period every 30 minutes. No adverse effects on the normal functioning of the packing could be observed during the experiments.

Claims (4)

502 513' 10 15 20 Patentkrav502 513 '10 15 20 Patent claim 1. Topplockspackning för förbränningsmotorer k ä n n e t e c k n a d a v att den innefattar ett laminat bestående av en tunn plåt av rostfritt och/eller värmehärlcligt stål, vilken plåt på vardera sidan är belagd med ännu tunnare men åtminstone 0,05 mm tjocka bärarkalandrerade gummifilmer ihopvulkaniserade med stålplåten.1. A cylinder head gasket for internal combustion engines is characterized in that it comprises a laminate consisting of a thin sheet of stainless and / or heat-absorbent steel, which sheet is coated on each side with even thinner but at least 0.05 mm thick carrier-calendered rubber-plated rubber-plated steel sheets. 2. Toppløckspackning enligt krav l, k ä n n e t e c k n a d a v att stål- plåten är ca O,2-0,4 mm tjock och gummifilmerna vardera 0,05-O,20 mm.Top cap gasket according to claim 1, characterized in that the steel plate is approximately 0.2-0.4 mm thick and the rubber films are each 0.05-0.20 mm. 3. Topplockspackning enligt krav 1 och 2, k ä n n e t e c k n a d a v att den utåt vettande ytan hos gummifilmerna har textilbärarstruktur, före- trädesvis en knottrig sådan.Cylinder head gasket according to claims 1 and 2, characterized in that the outwardly facing surface of the rubber films has a textile carrier structure, preferably a lumpy one. 4. Topplockspackning enligt krav 1-3, k ä n n e t e c k n a d a v att den består av flera laminat, som sinsemellan är hopvulkaniserade. n4. A cylinder head gasket according to claims 1-3, characterized in that it consists of several laminates, which are vulcanized together. n
SE9401401A 1994-04-25 1994-04-25 Head gasket SE502513C2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9401401A SE502513C2 (en) 1994-04-25 1994-04-25 Head gasket
DE69508578T DE69508578T2 (en) 1994-04-25 1995-04-24 CYLINDER SEAL
AU24224/95A AU2422495A (en) 1994-04-25 1995-04-24 Head gasket
EP95918228A EP0760902B1 (en) 1994-04-25 1995-04-24 Head gasket
PCT/SE1995/000443 WO1995029333A1 (en) 1994-04-25 1995-04-24 Head gasket
DK95918228T DK0760902T3 (en) 1994-04-25 1995-04-24 Head Gasket
CA002186629A CA2186629C (en) 1994-04-25 1995-04-24 Head gasket
CZ19963022A CZ286582B6 (en) 1994-04-25 1995-04-24 Cylinder head gasket
HU9602939A HU218781B (en) 1994-04-25 1995-04-24 Head gasket
ES95918228T ES2129821T3 (en) 1994-04-25 1995-04-24 CYLINDER HEAD GASKET.
AT95918228T ATE178121T1 (en) 1994-04-25 1995-04-24 CYLINDER SEAL RING
GR990400594T GR3029793T3 (en) 1994-04-25 1999-03-25 Head gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401401A SE502513C2 (en) 1994-04-25 1994-04-25 Head gasket

Publications (3)

Publication Number Publication Date
SE9401401D0 SE9401401D0 (en) 1994-04-25
SE9401401L SE9401401L (en) 1995-10-26
SE502513C2 true SE502513C2 (en) 1995-11-06

Family

ID=20393771

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401401A SE502513C2 (en) 1994-04-25 1994-04-25 Head gasket

Country Status (12)

Country Link
EP (1) EP0760902B1 (en)
AT (1) ATE178121T1 (en)
AU (1) AU2422495A (en)
CA (1) CA2186629C (en)
CZ (1) CZ286582B6 (en)
DE (1) DE69508578T2 (en)
DK (1) DK0760902T3 (en)
ES (1) ES2129821T3 (en)
GR (1) GR3029793T3 (en)
HU (1) HU218781B (en)
SE (1) SE502513C2 (en)
WO (1) WO1995029333A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE509315C2 (en) 1995-10-26 1999-01-11 Trelleborg Rubore Ab Packing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184133A5 (en) * 1972-05-05 1973-12-21 Farnam Co F D
DE3225420A1 (en) * 1981-07-10 1983-02-03 Felt Products Mfg. Co., 60076 Skokie, Ill. SEALING ARRANGEMENT AND METHOD FOR THEIR PRODUCTION
DE3500071A1 (en) * 1985-01-03 1986-07-03 Elring Dichtungswerke Gmbh, 7012 Fellbach CYLINDER HEAD GASKET
US5130203A (en) * 1988-07-28 1992-07-14 Nippon Leakless Industry Co., Ltd. Metal gasket and method of producing the same
SE465763B (en) * 1990-03-09 1991-10-28 Rubore Materials Sweden Ab MANUFACTURED TO MAKE A MATERIAL COURSE FOR MANUFACTURING PACKAGING
JPH0586070U (en) * 1991-05-31 1993-11-19 ニチアス株式会社 Head gasket

Also Published As

Publication number Publication date
ES2129821T3 (en) 1999-06-16
CA2186629C (en) 2003-06-17
DE69508578D1 (en) 1999-04-29
SE9401401L (en) 1995-10-26
HUT77502A (en) 1998-05-28
EP0760902B1 (en) 1999-03-24
SE9401401D0 (en) 1994-04-25
ATE178121T1 (en) 1999-04-15
HU218781B (en) 2000-12-28
WO1995029333A1 (en) 1995-11-02
DK0760902T3 (en) 2003-04-14
HU9602939D0 (en) 1996-12-30
CZ286582B6 (en) 2000-05-17
CZ302296A3 (en) 1997-02-12
AU2422495A (en) 1995-11-16
EP0760902A1 (en) 1997-03-12
DE69508578T2 (en) 1999-07-15
CA2186629A1 (en) 1995-11-02
GR3029793T3 (en) 1999-06-30

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