JP4011821B2 - Metal gasket - Google Patents

Metal gasket Download PDF

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Publication number
JP4011821B2
JP4011821B2 JP2000082121A JP2000082121A JP4011821B2 JP 4011821 B2 JP4011821 B2 JP 4011821B2 JP 2000082121 A JP2000082121 A JP 2000082121A JP 2000082121 A JP2000082121 A JP 2000082121A JP 4011821 B2 JP4011821 B2 JP 4011821B2
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JP
Japan
Prior art keywords
gasket
seal member
elastic seal
metal
metal gasket
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Expired - Fee Related
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JP2000082121A
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Japanese (ja)
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JP2001271938A (en
Inventor
道夫 藤野
雄規 上田
敏彦 熊坂
正哉 関
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Nichias Corp
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Nichias Corp
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Priority to JP2000082121A priority Critical patent/JP4011821B2/en
Priority to EP01300693A priority patent/EP1136731B1/en
Priority to DE60121240T priority patent/DE60121240T2/en
Priority to US09/771,786 priority patent/US6719300B2/en
Publication of JP2001271938A publication Critical patent/JP2001271938A/en
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Publication of JP4011821B2 publication Critical patent/JP4011821B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0856—Flat gaskets with a non-metallic coating or strip

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Gasket Seals (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、内燃機関を構成するシリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットの改良に関する。
【０００２】
【従来の技術】
チェーン駆動のエンジンでは、図１３〜図１４に示すように、シリンダブロック１に、これと別に製作されたチェーンケース２が隣接して締結され、これらの面とシリンダヘッド３の下面との三面合わせ部に金属ガスケットＡを介装して締結することにより、前記三面合わせ部にシール機能を付与している。Ｂはシリンダブロックとチェーンケースとの接合面に介装された金属ガスケットであり、（イーイ）線はシリンダブロック１とチェーンケース２との接合境界を示している。
【０００３】
上記のようにチェーンケース２をシリンダブロック１と別個に製作して締結した構成では、図１５に示すように、シリンダブロック１とチェーンケース２のあいだに、熱膨張差により、僅かであるが段差ｈが発生する。
【０００４】
上記段差ｈの発生は、チェーンケースカバーの穴部２ａに対するシール機能の低下を招くことから、例えば、図１６〜図１７に示すように、金属ガスケットＡ側のチェーン用開口４の側縁に、前記段差ｈを跨ぐエラストマビード等による断面半円形の弾性シール部材５を設け、これに図１８に示すように、ペースト状液状ガスケット剤６を併用し、良好なシール性を確保する手段が適用されている。
【０００５】
【発明が解決しようとする課題】
しかしながら、シリンダヘッドと、チェーンケースおよびシリンダブロックとの間を締め付けた時、その締め付け圧により液状ガスケット剤が溢れて金属ガスケットのゴム弾性体を劣化させてしまう。その結果、ゴム弾性体に亀裂が生じてしまう、あるいはゴム弾性が低下することにより、シール性が低下して、エンジンオイルの漏れが発生する等の問題が生じる。
また、上記金属ガスケットに設けたゴム弾性体は、締め付けの際、過圧縮すると、弾性復元力が失われる不具合がある。
【０００６】
本発明は、液状ガスケット剤が溢れた場合でも、ゴム弾性体が劣化して亀裂が生じることがない、あるいはゴム弾性が低下するという問題がない金属ガスケットを提供することを主たる目的としている。
【０００７】
【課題を解決するための手段】
上記目的を達成するため、請求項１の発明は、シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットであって、前記金属ガスケットのチェーン用開口の内周縁に弾性シール部材が装着されており、前記弾性シール部材のうち、前記三面合わせ部に配置される部分では、ガスケットの金属板部分と共に弾性シール部材をシール軌跡が外側に向くように膨らませ、その膨らませ部分で作られた空所部を液状ガスケット剤の貯留部となし、かつその外側でガスケットの金属板部分に、締め付け時に前記貯留部から溢れた液状ガスケット剤を受け入れることができる貫通状穴部が設けられていることを特徴とする金属ガスケットを要旨とする。
【０００８】
また、請求項２の発明は、シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットであって、前記金属ガスケットのチェーン用開口の内周縁に弾性シール部材が装着されており、前記弾性シール部材のうち、前記三面合わせ部に配置される部分では、ガスケットの金属板部分と共に弾性シール部材をシール軌跡が外側に向くように膨らませ、その膨らませ部分で作られた空所部を液状ガスケット剤の貯留部となし、かつその外側でガスケットの金属板部分に、締め付け時に前記貯留部から溢れた液状ガスケット剤を受け入れることができる凹状段差部が設けられていることを特徴とする金属ガスケットを要旨とする。
【０００９】
また、請求項３の発明は、シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットであって、前記金属ガスケットのチェーン用開口の内周縁に弾性シール部材が装着されており、前記弾性シール部材のうち、前記三面合わせ部に配置される部分では、ガスケットの金属板部分と共に弾性シール部材をシール軌跡が外側に向くように膨らませ、その膨らませ部分で作られた空所部を液状ガスケット剤の貯留部となし、かつその外側でガスケットの金属板部分に、締め付け時に前記貯留部から溢れた液状ガスケット剤を受け入れることができる貫通状穴部および凹状段差部が設けられていることを特徴とする金属ガスケットを要旨とする。
【００１３】
【発明の実施の形態】
本発明の好ましい実施の形態としては、図１〜図２に示すように、チェーン駆動のエンジンに配設される金属ガスケットＡにおいて、金属ガスケットＡのチェーン用開口４の内周縁に弾性シール部材７を装着し、その弾性シール部材７の外側の金属板部分に、締め付け時に溢れた液状ガスケット剤を貯留できる貫通状穴部８，８を設けて構成する。
【００１４】
【実施例】
図１〜図４に、本発明の一実施例を示す。なお、図１３〜図１８と同一または類似する部材には同じ符号が付されている。
【００１５】
即ち、Ａは金属ガスケットであり、この金属ガスケットＡのチェーン用開口４の内周縁に断面丸形のゴム製弾性シール部材７が挟み込みで装着されている。
また、金属ガスケットＡには、弾性シール部材７の外側の三面合わせ部にあたる金属板部分に貫通状穴部８が設けられている。
【００１６】
上記構成によれば、シリンダヘッドと、チェーンケースおよびシリンダブロックとの間を締め付けた時、溢れた液状ガスケット剤を貫通状穴部８で吸収して貯留することができるから、ゴム製弾性シール部材７へ液状ガスケット剤が付着することを極力防ぐことができる。
【００１７】
また、断面丸形のゴム製弾性シール部材７を金属ガスケットのチェーン用開口４の内周縁に装着させた構造によれば、シール部材の直径分の深さにわたって液状ガスケット剤を貯留できる利点がある。
【００１８】
また、断面丸形のゴム製弾性シール部材７は、図２に示すように、それを金属ガスケット側に挟着するのが簡単であるが、図３〔Ｉ〕，〔II〕，〔III〕に示すように、金属ガスケットと接合する構造としてもよい。
図３〔Ｉ〕は、金属ガスケットにテーパー部を設け、そのテーパー部から内周部に連結部７−１を介して弾性シール部材７を設けた構造である。そして連結部７−１には、弾性シール部材７が圧縮された際のゴムの逃げ道となるくびれ部７−２を設けている。
図３〔II〕は、前記テーパー部を台形形状、図３〔III〕は、前記テーパー部をテーパー付き凸形形状としたもののほかに他のテーパー形状としてもよい。
図３〔Ｉ〕〜〔III〕の構造は、図２の構造と比較すると、金属ガスケットの板厚まで圧縮することができる。
【００１９】
なお、前記弾性シール部材は断面円形のものに限らず、例えば断面角形のものであってもよく、上記のシール機能が得られるものであれば、他の断面形状を有するものを任意に選択使用することができる。
また、弾性シール部材の材質はゴム材に限定されず、ゴム状弾性を有するものであれば、他の材質のものを任意に選択使用できる。
上記金属ガスケットは、１枚の金属板でなく、耐熱性の薄板を積層したものであってもよい。
また、上記金属ガスケットは、その構造に特別な制限はなく、例えばチェーンケースの上面に重ね合わされる部分を別個に作り、これをシリンダブロックの上面に重ね合わされる金属ガスケットに結合させた構造にしてもよい。
【００２０】
図５〜図６に、本発明の他の実施例を示す。
本実施例は、前記実施例の貫通状穴部８を凹状段差部９としたものである。
上記凹状段差部９は、三面合わせ部にあたる金属部分を表面から所要深さに切削加工、プレス加工することによって形成することができる。
【００２１】
図７〜図８に、本発明の他の実施例を示す。
本実施例は、前記貫通状穴部８と凹状段差部９の双方を設けたものである。
【００２２】
図９〜図１０に、本発明の他の実施例を示す。
本実施例は、弾性シール部材７のうち、三面合わせ部に配置される部分をガスケットの金属板部分と共にシール軌跡が外側に向くように膨らませ、その膨らませ部分７ａで作られた空所部１０を液状ガスケット剤の貯留部とし、その外側に貫通状穴部８を設けた構造である。
【００２３】
上記構成によれば、シリンダヘッドと、チェーンケースおよびシリンダブロックとの間を締め付けた時、溢れ出た液状ガスケット剤を前記空所部１０と貫通状穴部８の双方に吸収して貯留することができる。
【００２４】
図１１〜図１２は、本発明の他の実施例を示す。
本実施例は、図９〜図１０の実施例における貫通状穴部８と図５〜図６の実施例における凹状段差部９を組み合わせて設けて構成したものである。
【００２５】
【発明の効果】
以上詳述したように、本発明によれば、シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットにおいて、金属ガスケットのチェーン用開口の内周縁に弾性シール部材を装着すると共にその弾性シール部材の外側の金属板部分に、貫通状穴部および／または凹状段差部を設けて構成したので、金属ガスケットの締め付けなどで溢れた液状ガスケット剤が弾性シール部材へ付着することを極力防ぐことができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す金属ガスケットの主要部の平面図である。
【図２】図１のＹ1−Ｙ1線の切断拡大図面である。
【図３】〔Ｉ〕，〔II〕，〔III〕は弾性シール部材を金属ガスケットに接合した例の断面図である。
【図４】チェーンケースカバー穴に対する弾性シール部材の配置を示す説明図である。
【図５】本発明の他の実施例を示す金属ガスケットの主要部の平面図である。
【図６】図５のＹ2−Ｙ2線の切断拡大面図である。
【図７】本発明の他の実施例を示す金属ガスケットの主要部の平面図である。
【図８】図７のＹ3−Ｙ3線の切断拡大面図である。
【図９】本発明の他の実施例を示す金属ガスケットの主要部の平面図である。
【図１０】図９のＹ4−Ｙ4線の切断拡大面図である。
【図１１】本発明の他の実施例を示す金属ガスケットの主要部の平面図である。
【図１２】図１０のＹ5−Ｙ5線の切断拡大面図である。
【図１３】従来のチェーン駆動エンジンの概略構成図である。
【図１４】上記エンジンの平面図である。
【図１５】上記エンジンの分解構成図である。
【図１６】従来のチェーン駆動エンジン用金属ガスケットの平面図である。
【図１７】図１６のＸ−Ｘ線の切断拡大図である。
【図１８】金属ガスケットに液状ガスケット剤を併用させた部分の構造を示す側面図である。
【符号の説明】
１ シリンダブロック
２ チェーンケース
２ａ チェーンケースカバー穴
３ シリンダヘッド
Ａ 金属ガスケット
Ｂ シリンダブロックとチェーンケースの接合部に設けた金属ガスケット
４ チェーン用開口
５ 弾性シール部材
６ 液状ガスケット剤
７ 弾性シール部材
７−１ 弾性シール部材の連結部
７−２ くびれ部
７ａ 膨らませ部分
８ 貫通状穴部
９ 凹状段差部
１０ 空所部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a metal gasket used for a joint seal including a three-sided joint portion of a cylinder block, a chain case, and a cylinder head constituting an internal combustion engine.
[0002]
[Prior art]
In the chain drive engine, as shown in FIGS. 13 to 14, a chain case 2 manufactured separately from the cylinder block 1 is adjacently fastened, and these surfaces and the lower surface of the cylinder head 3 are aligned with each other. By attaching the metal gasket A to the part and fastening it, the sealing function is given to the three-surface mating part. B is a metal gasket interposed on the joining surface between the cylinder block and the chain case, and the (E) line indicates the joining boundary between the cylinder block 1 and the chain case 2.
[0003]
In the configuration in which the chain case 2 is manufactured and fastened separately from the cylinder block 1 as described above, there is a slight difference in level between the cylinder block 1 and the chain case 2 due to the difference in thermal expansion, as shown in FIG. h occurs.
[0004]
The occurrence of the level difference h causes a reduction in the sealing function with respect to the hole 2a of the chain case cover. For example, as shown in FIGS. 16 to 17, on the side edge of the chain opening 4 on the metal gasket A side, An elastic seal member 5 having a semicircular cross section made of elastomer beads or the like straddling the step h is provided, and as shown in FIG. 18, a paste-like liquid gasket agent 6 is used in combination, and means for ensuring good sealing performance is applied. ing.
[0005]
[Problems to be solved by the invention]
However, when the space between the cylinder head and the chain case and the cylinder block is tightened, the liquid gasket agent overflows due to the tightening pressure, and the rubber elastic body of the metal gasket is deteriorated. As a result, the rubber elastic body is cracked or the rubber elasticity is lowered, which causes problems such as a decrease in sealing performance and engine oil leakage.
Further, the rubber elastic body provided on the metal gasket has a problem that the elastic restoring force is lost when it is over-compressed during tightening.
[0006]
The main object of the present invention is to provide a metal gasket that does not cause a problem that a rubber elastic body deteriorates and cracks or a rubber elasticity decreases even when a liquid gasket agent overflows.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention is a metal gasket used for a joint seal including a three-sided joint portion of a cylinder block, a chain case, and a cylinder head, on an inner peripheral edge of a chain opening of the metal gasket. An elastic seal member is mounted, and in the portion of the elastic seal member that is disposed at the three-surface mating portion, the elastic seal member is inflated together with the metal plate portion of the gasket so that the seal locus faces outward, and the inflated portion The void portion made of is used as a reservoir for the liquid gasket agent, and on the outside of the metal plate portion of the gasket is provided a through-hole that can receive the liquid gasket agent overflowing from the reservoir when tightened The gist of the present invention is a metal gasket.
[0008]
The invention of claim 2 is a metal gasket used for a joint seal including a three-sided joint portion of a cylinder block, a chain case, and a cylinder head, and an elastic seal member is attached to the inner peripheral edge of the chain opening of the metal gasket. Of the elastic seal member, the elastic seal member is inflated with the metal plate portion of the gasket so that the seal trajectory faces outward at the portion disposed at the three-surface mating portion, and the void formed by the inflated portion is formed. The portion is formed as a storage portion for the liquid gasket agent, and the metal plate portion of the gasket is provided with a concave stepped portion that can receive the liquid gasket agent overflowing from the storage portion when tightened. The gist is a metal gasket.
[0009]
The invention according to claim 3 is a metal gasket used for a joint seal including a three-sided joint portion of a cylinder block, a chain case, and a cylinder head, and an elastic seal member is attached to the inner peripheral edge of the chain opening of the metal gasket. Of the elastic seal member, the elastic seal member is inflated with the metal plate portion of the gasket so that the seal trajectory faces outward at the portion disposed at the three-surface mating portion, and the void formed by the inflated portion is formed. The portion is formed as a storage portion for the liquid gasket agent, and a metal plate portion of the gasket outside is provided with a through hole and a concave step portion that can receive the liquid gasket agent overflowing from the storage portion when tightened. The gist of the present invention is a metal gasket.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
As a preferred embodiment of the present invention, as shown in FIGS. 1 to 2, in a metal gasket A provided in a chain drive engine, an elastic seal member 7 is provided on the inner periphery of the chain opening 4 of the metal gasket A. And the through-holes 8 and 8 are provided in the metal plate portion outside the elastic seal member 7 so as to store the liquid gasket material overflowing during tightening.
[0014]
【Example】
1 to 4 show an embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the member which is the same as that of FIGS. 13-18, or similar.
[0015]
That is, A is a metal gasket, and a rubber elastic seal member 7 having a round cross section is sandwiched and attached to the inner peripheral edge of the chain opening 4 of the metal gasket A.
Further, the metal gasket A is provided with a through-hole 8 in a metal plate portion corresponding to the three-side mating portion on the outer side of the elastic seal member 7.
[0016]
According to the above configuration, when the space between the cylinder head and the chain case and the cylinder block is tightened, the overflowing liquid gasket agent can be absorbed and stored in the through-hole 8 so that the rubber elastic seal member It is possible to prevent the liquid gasket agent from adhering to 7 as much as possible.
[0017]
Further, according to the structure in which the rubber elastic seal member 7 having a round cross section is mounted on the inner peripheral edge of the metal gasket chain opening 4, there is an advantage that the liquid gasket agent can be stored over a depth corresponding to the diameter of the seal member. .
[0018]
Further, as shown in FIG. 2, the rubber elastic seal member 7 having a round cross section can be easily sandwiched between the metal gasket side, but FIG. 3 [I], [II], [III] It is good also as a structure joined to a metal gasket as shown in FIG.
FIG. 3 [I] shows a structure in which a tapered portion is provided in a metal gasket, and an elastic seal member 7 is provided from the tapered portion to an inner peripheral portion via a connecting portion 7-1. The connecting portion 7-1 is provided with a constricted portion 7-2 serving as a rubber escape path when the elastic seal member 7 is compressed.
3 [II], the tapered portion may have a trapezoidal shape, and FIG. 3 [III] may have another tapered shape in addition to the tapered portion having a tapered convex shape.
3 [I] to [III] can be compressed to the thickness of the metal gasket as compared with the structure of FIG.
[0019]
The elastic seal member is not limited to a circular cross section, and may be, for example, a square cross section. Any other cross-sectional shape can be selected and used as long as the sealing function is obtained. can do.
The material of the elastic seal member is not limited to a rubber material, and any other material can be selected and used as long as it has rubber-like elasticity.
The metal gasket may be a laminate of heat-resistant thin plates instead of a single metal plate.
The metal gasket is not particularly limited in its structure. For example, a portion that is overlapped with the upper surface of the chain case is made separately, and this is combined with the metal gasket that is overlapped with the upper surface of the cylinder block. Also good.
[0020]
5 to 6 show another embodiment of the present invention.
In this embodiment, the through hole 8 of the above embodiment is a concave stepped portion 9.
The concave stepped portion 9 can be formed by cutting and pressing a metal portion corresponding to the three-surface mating portion from the surface to a required depth.
[0021]
7 to 8 show another embodiment of the present invention.
In this embodiment, both the through hole 8 and the concave step 9 are provided.
[0022]
9 to 10 show another embodiment of the present invention.
In this embodiment, the elastic seal member 7 is inflated with the metal plate portion of the gasket so that the seal trajectory faces outward with the metal plate portion of the gasket, and the void portion 10 formed by the inflated portion 7a is formed. This is a structure in which a liquid gasket agent is stored and a through hole 8 is provided outside.
[0023]
According to the above configuration, when the space between the cylinder head and the chain case and the cylinder block is tightened, the overflowing liquid gasket agent is absorbed and stored in both the cavity 10 and the through hole 8. Can do.
[0024]
11 to 12 show another embodiment of the present invention.
In this embodiment, the through hole 8 in the embodiment of FIGS. 9 to 10 and the concave step 9 in the embodiment of FIGS. 5 to 6 are provided in combination.
[0025]
【The invention's effect】
As described above in detail, according to the present invention, in the metal gasket used for the joint seal including the three-faced joint portion of the cylinder block, the chain case, and the cylinder head, the elastic seal member is provided on the inner peripheral edge of the chain opening of the metal gasket. Since the metal plate portion is mounted and provided with a through hole and / or a concave step portion on the outer side of the elastic seal member, the liquid gasket agent overflowing due to tightening of the metal gasket adheres to the elastic seal member. This can be prevented as much as possible.
[Brief description of the drawings]
FIG. 1 is a plan view of a main part of a metal gasket showing an embodiment of the present invention.
FIG. 2 is an enlarged cutaway view taken along line Y 1 -Y 1 of FIG.
[I], [II], [III] are cross-sectional views of an example in which an elastic seal member is joined to a metal gasket.
FIG. 4 is an explanatory view showing the arrangement of the elastic seal member with respect to the chain case cover hole.
FIG. 5 is a plan view of the main part of a metal gasket showing another embodiment of the present invention.
6 is an enlarged sectional view taken along line Y 2 -Y 2 in FIG. 5;
FIG. 7 is a plan view of the main part of a metal gasket showing another embodiment of the present invention.
8 is an enlarged cutaway view taken along line Y 3 -Y 3 of FIG. 7;
FIG. 9 is a plan view of the main part of a metal gasket showing another embodiment of the present invention.
10 is an enlarged sectional view taken along line Y 4 -Y 4 of FIG. 9;
FIG. 11 is a plan view of the main part of a metal gasket showing another embodiment of the present invention.
12 is an enlarged sectional view taken along line Y 5 -Y 5 of FIG.
FIG. 13 is a schematic configuration diagram of a conventional chain drive engine.
FIG. 14 is a plan view of the engine.
FIG. 15 is an exploded configuration diagram of the engine.
FIG. 16 is a plan view of a conventional metal gasket for a chain drive engine.
17 is an enlarged cut-away view taken along line XX of FIG.
FIG. 18 is a side view showing the structure of a portion in which a liquid gasket agent is used in combination with a metal gasket.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylinder block 2 Chain case 2a Chain case cover hole 3 Cylinder head A Metal gasket B Metal gasket provided in the junction part of a cylinder block and a chain case 4 Chain opening 5 Elastic seal member 6 Liquid gasket agent 7 Elastic seal member 7-1 Connecting portion 7-2 of elastic seal member Neck portion 7a Inflated portion 8 Through hole portion 9 Concave step portion 10 Void portion

Claims (3)

シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットであって、前記金属ガスケットのチェーン用開口の内周縁に弾性シール部材が装着されており、前記弾性シール部材のうち、前記三面合わせ部に配置される部分では、ガスケットの金属板部分と共に弾性シール部材をシール軌跡が外側に向くように膨らませ、その膨らませ部分で作られた空所部を液状ガスケット剤の貯留部となし、かつその外側でガスケットの金属板部分に、締め付け時に前記貯留部から溢れた液状ガスケット剤を受け入れることができる貫通状穴部が設けられていることを特徴とする金属ガスケット。A metal gasket used for a joint seal including a three-sided portion of a cylinder block, a chain case, and a cylinder head, wherein an elastic seal member is attached to an inner peripheral edge of the chain opening of the metal gasket, and the elastic seal member Of these, in the portion arranged in the three-surface mating portion, the elastic seal member is inflated together with the metal plate portion of the gasket so that the seal locus faces outward, and the void portion formed by the inflated portion is stored as a reservoir portion for the liquid gasket agent. A metal gasket , characterized in that, on the outside, a metal plate portion of the gasket is provided with a through hole that can receive the liquid gasket material overflowing from the storage portion when tightened. シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットであって、前記金属ガスケットのチェーン用開口の内周縁に弾性シール部材が装着されており、前記弾性シール部材のうち、前記三面合わせ部に配置される部分では、ガスケットの金属板部分と共に弾性シール部材をシール軌跡が外側に向くように膨らませ、その膨らませ部分で作られた空所部を液状ガスケット剤の貯留部となし、かつその外側でガスケットの金属板部分に、締め付け時に前記貯留部から溢れた液状ガスケット剤を受け入れることができる凹状段差部が設けられていることを特徴とする金属ガスケット。A metal gasket used for a joint seal including a three-sided portion of a cylinder block, a chain case, and a cylinder head, wherein an elastic seal member is attached to an inner peripheral edge of the chain opening of the metal gasket, and the elastic seal member Of these, in the portion arranged in the three-surface mating portion, the elastic seal member is inflated together with the metal plate portion of the gasket so that the seal locus faces outward, and the void portion formed by the inflated portion is stored as a reservoir portion for the liquid gasket agent. A metal gasket characterized in that a concave step portion is provided on the outer side of the metal plate portion of the gasket so as to be able to receive the liquid gasket agent overflowing from the storage portion when tightened. シリンダブロックとチェーンケースとシリンダヘッドの三面合わせ部を含む接合シールに用いられる金属ガスケットであって、前記金属ガスケットのチェーン用開口の内周縁に弾性シール部材が装着されており、前記弾性シール部材のうち、前記三面合わせ部に配置される部分では、ガスケットの金属板部分と共に弾性シール部材をシール軌跡が外側に向くように膨らませ、その膨らませ部分で作られた空所部を液状ガスケット剤の貯留部となし、かつその外側でガスケットの金属板部分に、締め付け時に前記貯留部から溢れた液状ガスケット剤を受け入れることができる貫通状穴部および凹状段差部が設けられていることを特徴とする金属ガスケット。A metal gasket used for a joint seal including a three-sided portion of a cylinder block, a chain case, and a cylinder head, wherein an elastic seal member is attached to an inner peripheral edge of the chain opening of the metal gasket, and the elastic seal member Of these, in the portion arranged in the three-surface mating portion, the elastic seal member is inflated together with the metal plate portion of the gasket so that the seal locus faces outward, and the void portion formed by the inflated portion is stored as a reservoir portion for the liquid gasket agent. A metal gasket having a through hole and a concave step which can receive the liquid gasket material overflowing from the storage portion when tightened on the metal plate portion of the gasket outside .
JP2000082121A 2000-03-23 2000-03-23 Metal gasket Expired - Fee Related JP4011821B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000082121A JP4011821B2 (en) 2000-03-23 2000-03-23 Metal gasket
EP01300693A EP1136731B1 (en) 2000-03-23 2001-01-26 Metal gasket
DE60121240T DE60121240T2 (en) 2000-03-23 2001-01-26 metal seal
US09/771,786 US6719300B2 (en) 2000-03-23 2001-01-29 Metal gasket

Applications Claiming Priority (1)

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JP4011821B2 true JP4011821B2 (en) 2007-11-21

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DE102004020446B3 (en) * 2004-04-27 2005-11-10 Federal-Mogul Sealing Systems Gmbh Cylinder head gasket for internal combustion engines

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