JPH0346661B2 - - Google Patents
Info
- Publication number
- JPH0346661B2 JPH0346661B2 JP62018878A JP1887887A JPH0346661B2 JP H0346661 B2 JPH0346661 B2 JP H0346661B2 JP 62018878 A JP62018878 A JP 62018878A JP 1887887 A JP1887887 A JP 1887887A JP H0346661 B2 JPH0346661 B2 JP H0346661B2
- Authority
- JP
- Japan
- Prior art keywords
- bead
- cylinder head
- beads
- thin metal
- cylinder
- 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
Links
- 239000011324 bead Substances 0.000 claims description 76
- 239000002184 metal Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 14
- 238000004381 surface treatment Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 description 14
- 239000000567 combustion gas Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000035882 stress Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 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
- 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)
- Gasket Seals (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、内燃機関のシリンダーブロツクとシ
リンダーヘツドとの接合部等をシールする金属製
ガスケツトに係り、特に燃焼室のガスシール性の
耐久的な維持と、ビードのへたりと亀裂に対する
改善を意図する金属シリンダーヘツドガスケツト
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a metal gasket for sealing the joint between a cylinder block and a cylinder head of an internal combustion engine. This invention relates to a metal cylinder head gasket intended for improved maintenance and protection against bead sagging and cracking.
（従来の技術）
従来のシリンダーヘツドガスケツトは、一般的
に薄板金属バネ材に波形状のビードを設け、この
弾性と、金属薄板の表裏に塗布したフツ素ゴムな
どの耐熱性表面処理機能材の密着性の作用で高
温、高圧の燃焼ガスシール機能を維持させてい
る。(Prior technology) Conventional cylinder head gaskets generally have a wave-shaped bead on a thin metal spring material, and combine this elasticity with a heat-resistant surface treatment material such as fluoro rubber coated on the front and back sides of the thin metal plate. Its adhesion maintains the high temperature and high pressure combustion gas sealing function.
（発明が解決しようとする問題点）
しかし近年の高性能エンジンではターボ仕様、
DOHC化、爆発圧の増加、エンジンの小型軽量
化などで、ガスケツトがさらされる環境はますま
す厳しくなつてきており、その結果、運転時にシ
リンダーブロツクとシリンダーヘツド間の間隔が
相対的に変化することによりビードに加わる変位
が増大し、シールすべきビード部がつぶれてへた
り面圧が低下し、シール維持が出来ずガス漏れが
生じる。(Problem that the invention aims to solve) However, in recent years, high-performance engines have turbo specifications,
The environment to which gaskets are exposed is becoming increasingly harsh due to the shift to DOHC, increased explosion pressure, and smaller and lighter engines.As a result, the spacing between the cylinder block and cylinder head changes relative to each other during operation. As a result, the displacement applied to the bead increases, the bead portion to be sealed collapses and sag, and the surface pressure decreases, making it impossible to maintain the seal and causing gas leakage.
また前記の薄板金属バネ材は通常、硬度が
Hv430〜500という硬い材質を使用しているため
とビード加工時の残留応力の影響で、上記の変位
の増大により亀裂が発生する。 In addition, the thin metal spring material mentioned above usually has a hardness.
Due to the use of a hard material of Hv430-500 and the influence of residual stress during bead processing, cracks occur due to the increase in displacement described above.
これらの問題の解決策としてビード形状又は模
様を工夫するとか、金属板の積層枚数を増すとか
がなされているが、その効果としては確実なもの
ではない。 As a solution to these problems, attempts have been made to modify the bead shape or pattern, or to increase the number of laminated metal plates, but the effects are not certain.
而して一般にガス漏れをおこす原因は、内燃機
関エンジンの運転中のシリンダーヘツドとシリン
ダーブロツクの爆発する燃焼ガスの圧力による各
気筒ごとの上下運動と、熱による歪みがシリンダ
ーヘツドボルトにより締付されたシリンダーヘツ
ドガスケツトの各場所ごと、各時間ごと、そして
運転条件による異なつた複雑に変化する応力を与
え、その応力がガスケツトを弾性的に変形し、燃
焼ガス、冷却水、潤滑油の内圧に抵抗してシール
機能を果すものであるが、ガスケツト材質の劣化
又は弾性範囲をこえた変形により、ボルト応力の
緩和、ガスケツトのへたりを起すためにガス漏れ
を起すことになる。 Generally, the causes of gas leaks are the vertical movement of each cylinder due to the pressure of exploding combustion gas in the cylinder head and cylinder block during operation of the internal combustion engine, and the distortion caused by heat that causes tightening of the cylinder head bolts. The cylinder head gasket is subjected to stress that varies in a complex manner depending on its location, time, and operating conditions.The stress causes the gasket to elastically deform, causing the internal pressure of combustion gas, cooling water, and lubricating oil to change. Although it performs a sealing function by resisting, gas leakage occurs due to deterioration of the gasket material or deformation beyond its elastic range, which relaxes the bolt stress and causes the gasket to sag.
金属ガスケツトの場合、シールすべきループは
波形状のビードが圧縮された上下頂点に形成され
るが、圧力的にも熱的にも負荷の大きい燃焼ガス
についていえば、運転初期には十分シールされて
いても、シリンダーヘツドとシリンダーブロツク
間の相対的間隔が次第に大きくなるにつれてビー
ドがつぶれ、特にボルトの締付力が弱くなり、熱
の厳しい燃焼室シリンダーボアー間およびボルト
から遠いボルトスパン間からガスが漏れ始めると
いつた問題点があつた。 In the case of metal gaskets, the loops to be sealed are formed at the top and bottom vertices of compressed wave-shaped beads, but when it comes to combustion gases that have a large pressure and thermal load, it is difficult to seal them sufficiently at the beginning of operation. However, as the relative spacing between the cylinder head and cylinder block gradually increases, the bead collapses and the bolt tightening force becomes weaker, allowing gas to escape from between the cylinder bores in the extremely hot combustion chamber and between the bolt spans far from the bolts. The problem arose when it started leaking.
（発明の目的）
前記のような問題点を解決するために、本発明
は、最近の高性能エンジンに対応できるよう、ガ
ス漏れ、ビード部のへたり、亀裂を防止して、耐
久性、信頼性の高い金属製シリンダーヘツドガス
ケツトを提供せんとするものである。(Object of the Invention) In order to solve the above-mentioned problems, the present invention has been developed to prevent gas leakage, bead fatigue, and cracks, and to improve durability and reliability so as to be compatible with recent high-performance engines. The object of the present invention is to provide a metal cylinder head gasket with high durability.
（問題点を解決するための手段）
本発明の金属シリンダーヘツドガスケツトは、
以下の様な構成である。(Means for solving the problems) The metal cylinder head gasket of the present invention has the following features:
The configuration is as follows.
即ち、調整板２の両面に、表面処理５を施した
断面視波形状のビード９を形成したビード基板
１，１を対称的に積層して、このビード９の弾性
により列設されたシリンダーボアー８，８の周囲
のシールの維持を果す金属シリンダーヘツドガス
ケツトにおいて、各ビード基板１，１のビード９
の外周であつて、少なくとも、シリンダーボアー
８，８間に形成される、調整板２とビード９，９
に囲まれた上下の凹部４を確保して、該凹部４に
ビードのへたり防止のためのストツパー機能を有
する金属薄板３を部分的に介在固定させた構成と
したのである。 That is, bead substrates 1, 1 each having a bead 9 having a wave-shaped cross section and subjected to a surface treatment 5 are laminated symmetrically on both sides of an adjustment plate 2, and cylinder bores arranged in rows are formed by the elasticity of the bead 9. Bead 9 of each bead substrate 1,1 in a metal cylinder head gasket which serves to maintain a seal around 8,8.
Adjusting plate 2 and beads 9, 9 formed between at least cylinder bores 8, 8 on the outer periphery of
A thin metal plate 3 having a stopper function to prevent the bead from settling is partially interposed and fixed in the recess 4 to ensure an upper and lower recess 4 surrounded by.
（実施例）
本発明は、弾性金属板に断面視波形状のビード
９を形成してビード９の弾性によりシールの維持
を果す金属シリンダーヘツドガスケツトにおい
て、調整板２の両面にフツ素ゴム等の表面処理５
を施した断面視波形状のビード９を有するビード
基板１，１を配置し、調整板２とビード基板１の
ビード９，９に挟まれた凹部４に金属薄板３を介
在させた構成である。(Example) The present invention is a metal cylinder head gasket in which a bead 9 having a wave-shaped cross section is formed on an elastic metal plate and the seal is maintained by the elasticity of the bead 9. surface treatment 5
Bead substrates 1, 1 each having a bead 9 with a cross-sectional visible wave shape are arranged, and a thin metal plate 3 is interposed in a recess 4 sandwiched between the adjusting plate 2 and the beads 9, 9 of the bead substrate 1. .
ビード基板１は硬度Hv450のステンレス鋼板製
で断面が波形状で、そのビード基板１の両面に、
約15ミクロン程度のフツ素ゴムを塗布して表面処
理５を施したものを使用し、ビード幅は2.5mm、
ビード高さ0.25mm、初期面圧800Kg／cm2とした。 The bead substrate 1 is made of a stainless steel plate with a hardness of Hv450 and has a corrugated cross section.
The bead width is 2.5 mm, and the bead width is 2.5 mm.
The bead height was 0.25 mm and the initial surface pressure was 800 Kg/cm 2 .
金属薄板３の厚さは、ビード９の凹部４の高さ
より低く、耐久的にシール機能を保証する厚さ
で、実際にはエンジンの挙動に依つて設計的に決
められるものであるが、一般的には10〜200ミク
ロンの範囲にある。 The thickness of the thin metal plate 3 is lower than the height of the recess 4 of the bead 9, and is a thickness that guarantees a durable sealing function.Actually, it is determined by design depending on the behavior of the engine, but it is generally Generally, it is in the range of 10 to 200 microns.
金属薄板３はステンレス等の金属薄板でビード
基板１または調整板２に接着剤等により固定して
使用する。 The thin metal plate 3 is a thin metal plate made of stainless steel or the like and is used by being fixed to the bead substrate 1 or the adjusting plate 2 with an adhesive or the like.
調整板２は硬度Hv150で厚さ0.9mmの亜鉛鍍金
鋼板を使用した。 Adjustment plate 2 was made of a galvanized steel plate with a hardness of Hv150 and a thickness of 0.9 mm.
そこで従来製品即ち、金属薄板を使用しないビ
ード型ガスケツトと本発明ガスケツトを、自動車
用デイーゼルエンジン４気筒、2400c.c.ターボ付
き、Pmaxが120Kg／cm2シリンダーヘツド、シリ
ンダーブロツクは共に鋳鉄製、締付時の厚さ1.5
mm波形状ビード基板１を使用し、ビード基板は硬
度Hv450のステンレス鋼板0.25mmで、その両面に
15ミクロンのフツ素ゴムを塗布したものを使用
し、ビード幅は2.5mmビードの高さ0.25mm、初期
の面圧800Kg／cm2、調整板２は硬度Hv150で厚さ
0.9mmの亜鉛鍍金鋼板のものを使用し、200時間全
負荷耐久実験をした結果、従来型のものでは、シ
リンダーヘツドボルトのトルク損失はなかつた
が、燃焼室間からガス漏れがみられ、またビード
の高さを測定したところ、燃焼室間は他の燃焼室
周りに比べて約30ミクロン低くなつていることが
判明した。 Therefore, conventional products, namely bead type gaskets that do not use thin metal plates, and gaskets of the present invention are used for automobile diesel engines with 4 cylinders, 2400 c.c. turbo, Pmax of 120 Kg/cm, 2 cylinder head and cylinder block both made of cast iron, Thickness when attached 1.5
mm corrugated bead substrate 1 is used, and the bead substrate is a 0.25 mm stainless steel plate with a hardness of Hv450.
A material coated with 15 micron fluoro rubber is used, the bead width is 2.5mm, the bead height is 0.25mm, the initial surface pressure is 800Kg/cm 2 , and the adjustment plate 2 has a hardness of Hv150 and a thickness of
As a result of a 200-hour full-load durability test using a 0.9mm galvanized steel plate, there was no torque loss in the cylinder head bolt with the conventional type, but gas leakage was observed between the combustion chambers, and When we measured the bead height, we found that the area between the combustion chambers was approximately 30 microns lower than the area around the other combustion chambers.
これはビードのへたりであり、これによりビー
ド部のシール必要面圧が低下して燃焼ガスが漏れ
たものである。 This is due to the bead settling, which lowers the surface pressure required for sealing at the bead portion and causes combustion gas to leak.
ところが本願発明品によれば、ボルトトルクの
損失は５％あつたが、燃焼室間からの燃焼ガスの
漏れは認められず、燃焼室間とそれ以外の燃焼室
周りのビード高さの差は認められず、ビードのへ
たりも生じていなかつた。 However, according to the product of the present invention, although the bolt torque loss was 5%, there was no leakage of combustion gas from between the combustion chambers, and the difference in bead height between the combustion chambers and around the other combustion chambers was This was not observed, and no bead fatigue occurred.
また本発明の実施例２として第５図に示すよう
に、シリンダーボアー間とシリンダーボアーとヘ
ツドボルトスパン間上部に前記のビード基板１の
ビード９，９に挟まれた凹部４に金属薄板３を接
着剤で固着したものを、前記と同一条件のもとで
使用した結果、この場合もボルトトルクの損失は
５％あつたが、燃焼室間からの燃焼ガスの漏れは
認められず、燃焼室間とそれ以外の燃焼室周りの
ビード高さの差は認められず、ビードのへたりも
生じていなかつた。 Further, as a second embodiment of the present invention, as shown in FIG. 5, a thin metal plate 3 is installed in the recess 4 sandwiched between the beads 9 of the bead base plate 1 between the cylinder bores and at the upper part between the cylinder bore and the head bolt span. As a result of using the bolt fixed with adhesive under the same conditions as above, the loss of bolt torque was 5% in this case as well, but no leakage of combustion gas was observed between the combustion chambers. There was no difference in bead height between the combustion chamber and other areas around the combustion chamber, and no bead settling occurred.
さらに本発明の実施例３として、第６図に示す
様にシリンダーボアーとヘツドボルトスパンの周
辺部及び前記のビード基板１のビード９，９には
挟まれた凹部４に夫々金属薄板３を接着剤で固着
した構成で、同一の条件で実験したが、結果は第
１，２と同じであつた。 Furthermore, as a third embodiment of the present invention, as shown in FIG. 6, thin metal plates 3 are bonded to the peripheral areas of the cylinder bore and head bolt span, and to the recesses 4 sandwiched between the beads 9, 9 of the bead substrate 1. An experiment was conducted under the same conditions using a structure fixed with a chemical agent, and the results were the same as those in the first and second cases.
上記の試験結果により、本発明の実施例１乃至
３の場合には燃焼室間からの燃焼ガスの漏れ、ビ
ードのへたり、ビード亀裂が生じないことが判明
した。 The above test results revealed that in Examples 1 to 3 of the present invention, no leakage of combustion gas from between the combustion chambers, no bead settling, and no bead cracking occurred.
（発明の作用効果）
本発明は、調整板２の両面に、表面処理５を施
した断面視波形状のビード９を形成したビード基
板１，１を対称的に積層して、このビード９の弾
性により列設されたシリンダーボアー８，８の周
囲のシールの維持を果す金属シリンダーヘツドガ
スケツトにおいて、
各ビード基板１，１のビード９の外周であつ
て、少なくとも、シリンダーボア８，８間に形成
される、調整板２とビード９，９に囲まれた上下
の凹部４を確保して、該凹部４にビードのへたり
防止のためのストツパー機能を有する金属薄板３
を部分的に介在固定したから、この金属薄板３
が、ビード９の圧縮変形を途中で拘束することに
なり、ビード９のへたりを防止する。(Operations and Effects of the Invention) The present invention symmetrically stacks bead substrates 1, 1 each having a bead 9 having a cross-sectional wave shape on which the surface treatment 5 is applied, on both sides of the adjustment plate 2, and In a metal cylinder head gasket that elastically maintains a seal around the cylinder bores 8, 8 arranged in a row, there is a gasket on the outer periphery of the bead 9 of each bead substrate 1, 1, at least between the cylinder bores 8, 8. A thin metal plate 3 is formed, which secures upper and lower recesses 4 surrounded by the adjustment plate 2 and beads 9, and has a stopper function in the recesses 4 to prevent the beads from settling.
This thin metal plate 3 is partially interposed and fixed.
However, the compressive deformation of the bead 9 is restrained midway through, thereby preventing the bead 9 from becoming sagging.
即ち、金属薄板３を配置したことにより、ビー
ド９の高さは金属薄板の高さ以下にはならない。 That is, by arranging the thin metal plate 3, the height of the bead 9 does not become less than the height of the thin metal plate.
従つて、シリンダーヘツド６とシリンダーブロ
ツク７間の相対的間隔が過度に大きくなつてもビ
ード９がつぶれたり亀裂を生じることがなく優れ
たシール機能を持つ弾性がビード９部分に残され
る。 Therefore, even if the relative distance between the cylinder head 6 and the cylinder block 7 becomes excessively large, the bead 9 will not be crushed or cracked, and the bead 9 will remain elastic with an excellent sealing function.
前記の金属薄板３はシリンダーヘツド６とシリ
ンダーブロツク７間の相対的間隔が大きくなり易
いシリンダーボアー８，８間またはシリンダーボ
アー８の周りのボルトスパン間の各々またはその
双方に板厚を変えて配置することができ、ボルト
締付力のガスケツトへの配分を相対的にバランス
させることにより、ビード９による燃焼ガスシー
ル機能を向上させ且つ平均化し、全気筒の燃焼ガ
スシール機能を確保することができる。 The thin metal plate 3 is arranged with a different thickness between the cylinder bores 8 and 8 or between the bolt spans around the cylinder bore 8, or both, where the relative distance between the cylinder head 6 and the cylinder block 7 tends to be large. By relatively balancing the distribution of bolt tightening force to the gasket, the combustion gas sealing function of the bead 9 can be improved and averaged, and the combustion gas sealing function of all cylinders can be ensured. .
特にビードの亀裂は、ビードが燃焼圧の繰り返
しにより叩かれる現像からビードがへたつて行く
ことにより発生するが、本発明においては、金属
薄板３がストツパー的役割を果すことになり、ビ
ード９の弾性的振幅が小さくなり、結果として、
相対的変位量の変化を押えることになり、ビード
９の亀裂を防止するものである。 In particular, cracks in the bead occur when the bead weakens during development where the bead is hammered by repeated combustion pressure, but in the present invention, the thin metal plate 3 plays the role of a stopper, and the bead 9 The elastic amplitude becomes smaller and as a result,
This suppresses changes in the amount of relative displacement and prevents the bead 9 from cracking.
更にガスケツト機能の一つに不当に高い締付け
荷重を避けることが大切であるが、この問題を解
決するためにも本発明は有効な結果をもたらしめ
ている。 Furthermore, it is important to avoid an unduly high tightening load on one of the gasket functions, and the present invention has brought about effective results in solving this problem.
即ち、従来シール性に問題が残るのは、初期の
面圧を高くするのであるが、本発明の場合、金属
薄板が、ビードのへたり防止のストツパーとなる
ために、経時的へたりを考慮することなく初期の
面圧を低くおさえることが出来るので、耐久的な
シール性が保証されるために、ビード部へ集中す
る面圧値も軽減されてシリンダーヘツドおよびシ
リンダーボアーの歪みを少くできる。 In other words, the problem with conventional sealing performance is that the initial surface pressure is high, but in the case of the present invention, since the thin metal plate acts as a stopper to prevent the bead from settling, it is possible to take into account the aging of the bead. Since the initial surface pressure can be suppressed to a low level without causing any damage, durable sealing performance is guaranteed, and the surface pressure concentrated on the bead is also reduced, reducing distortion of the cylinder head and cylinder bore.
また金属薄板３をビード９の周囲全周ではなく
部分的に配設使用するから、全周にリング状で使
用する場合のように、打抜き形成時に中央部にロ
スを生じることがなく、材料費が節約できるとと
もに打抜き型が小型となつて、ガスケツトの製作
の経済性を高めることができる。 In addition, since the thin metal plate 3 is arranged partially around the bead 9 rather than around the entire circumference, there is no loss in the center when punching and forming, unlike when using it in a ring shape around the entire circumference, and material costs are reduced. The cost can be saved and the punching die can be made smaller, making it possible to improve the economic efficiency of manufacturing the gasket.
第１図は従来の金属シリンダーヘツドガスケツ
トの平面図、第２図は第１図のＡ−Ａ線における
一部省略の拡大端面図、第３図は本発明の金属シ
リンダーヘツドガスケツトの平面図、第４図は第
３図のＢ−Ｂ線における一部省略の拡大端面図、
第５図、第６図は本発明の他の実施例を示す金属
シリンダーヘツドガスケツトの平面図である。
１……ビード基板、２……調整板、３……金属
薄板、４……凹部、５……表面処理、６……シリ
ンダーヘツド、７……シリンダーブロツク、８…
…シリンダーボアー、９……ビード。
FIG. 1 is a plan view of a conventional metal cylinder head gasket, FIG. 2 is an enlarged end view taken along line A-A in FIG. 1, and FIG. 3 is a plan view of the metal cylinder head gasket of the present invention. Figure 4 is an enlarged end view, partially omitted, taken along line B-B in Figure 3;
5 and 6 are plan views of a metal cylinder head gasket showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Bead substrate, 2... Adjustment plate, 3... Metal thin plate, 4... Recess, 5... Surface treatment, 6... Cylinder head, 7... Cylinder block, 8...
...Cylinder bore, 9...Bead.
Claims (1)
視波形状のビード９を形成したビード基板１，１
を対称的に積層して、このビード９の弾性により
列設されたシリンダーボアー８，８の周囲のシー
ルの維持を果す金属シリンダーヘツドガスケツト
において、各ビード基板１，１のビード９の外周
であつて、少なくとも、シリンダーボア８，８間
に形成される。調整板２とビード９，９に囲まれ
た上下の凹部４を確保して、該凹部にビードのへ
たり防止のためのストツパー機能を有する金属薄
板３を部分的に介在固定させたことを特徴とする
金属シリンダーヘツドガスケツト。1 Bead substrates 1, 1 in which beads 9 having a cross-sectional visible wave shape are formed on both sides of the adjustment plate 2, which has been subjected to surface treatment 5.
In the metal cylinder head gasket, which maintains a seal around the cylinder bores 8, 8 arranged in a row by the elasticity of the beads 9, the outer periphery of the bead 9 of each bead substrate 1, 1 is stacked symmetrically. It is formed at least between the cylinder bores 8, 8. A feature is that an upper and lower recess 4 surrounded by the adjustment plate 2 and the beads 9, 9 is secured, and a thin metal plate 3 having a stopper function to prevent the beads from settling is partially interposed and fixed in the recess. Metal cylinder head gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1887887A JPS63186950A (en) | 1987-01-28 | 1987-01-28 | Metal cylinder head gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1887887A JPS63186950A (en) | 1987-01-28 | 1987-01-28 | Metal cylinder head gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63186950A JPS63186950A (en) | 1988-08-02 |
| JPH0346661B2 true JPH0346661B2 (en) | 1991-07-16 |
Family
ID=11983809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1887887A Granted JPS63186950A (en) | 1987-01-28 | 1987-01-28 | Metal cylinder head gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63186950A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205566A (en) * | 1989-04-14 | 1993-04-27 | Nihon Metal Gasket Kabushiki Kaisha | Metallic gasket |
| JP2935545B2 (en) * | 1990-07-16 | 1999-08-16 | 日本リークレス工業株式会社 | Metal gasket |
| JP2989282B2 (en) * | 1991-01-09 | 1999-12-13 | 日本ガスケット株式会社 | Metal gasket |
| US6220606B1 (en) * | 1991-11-26 | 2001-04-24 | Nippon Gasket Co., Ltd. | Metallic gasket |
| US5277434A (en) * | 1992-09-11 | 1994-01-11 | Dana Corporation | Multiple layer cylinder head gasket |
| US6145847A (en) * | 1997-01-13 | 2000-11-14 | Nippon Reinz Co., Ltd. | Metal laminate gasket |
| DE10060514B4 (en) * | 2000-12-06 | 2006-11-30 | Carl Freudenberg Kg | Flat gasket for a piston power or working machine |
| JP3628960B2 (en) * | 2000-12-20 | 2005-03-16 | 石川ガスケット株式会社 | Metal gasket |
| CN104358623B (en) * | 2014-11-07 | 2017-02-08 | 广西玉柴机器股份有限公司 | cylinder head gasket |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947562A (en) * | 1982-09-07 | 1984-03-17 | Nippon Metal Gasket Kk | Metal gasket |
| JPS62261761A (en) * | 1986-04-16 | 1987-11-13 | Nippon Metal Gasket Kk | Laminated metal gasket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58109542U (en) * | 1982-01-21 | 1983-07-26 | トヨタ自動車株式会社 | Internal combustion engine cylinder head gasket |
-
1987
- 1987-01-28 JP JP1887887A patent/JPS63186950A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947562A (en) * | 1982-09-07 | 1984-03-17 | Nippon Metal Gasket Kk | Metal gasket |
| JPS62261761A (en) * | 1986-04-16 | 1987-11-13 | Nippon Metal Gasket Kk | Laminated metal gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63186950A (en) | 1988-08-02 |
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