JPH064054Y2 - Manifold gasket for internal combustion engine - Google Patents
Manifold gasket for internal combustion engineInfo
- Publication number
- JPH064054Y2 JPH064054Y2 JP13960588U JP13960588U JPH064054Y2 JP H064054 Y2 JPH064054 Y2 JP H064054Y2 JP 13960588 U JP13960588 U JP 13960588U JP 13960588 U JP13960588 U JP 13960588U JP H064054 Y2 JPH064054 Y2 JP H064054Y2
- Authority
- JP
- Japan
- Prior art keywords
- manifold
- boss
- combustion engine
- internal combustion
- gasket
- 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
Landscapes
- Exhaust Silencers (AREA)
- Gasket Seals (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） この考案は、内燃機関のマニホールドガスケットに関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a manifold gasket of an internal combustion engine.
（従来の技術と解決しようとする課題） 内燃機関のシリンダヘッドと吸気マニホルードならびに
排気マニホルードとは接合部にマニホルードガスケット
を介装して締結ボルトにより固定されるようになってお
り、締結ボルトのボス部が流路の開口部に近い場合には
ボス部と開口部とが一体に形成され、ボス部が開口部か
らある程度離れている場合には締結ボルトの締付力が弱
まらないようにボス部と開口部との間にリブが設けられ
る。(Problems to be Solved by the Related Art) The cylinder head of the internal combustion engine and the intake manifold and the exhaust manifold are fixed to each other by a fastening bolt through a manifold gasket at the joint. When the boss is close to the opening of the flow path, the boss and the opening are integrally formed, and when the boss is apart from the opening to some extent, the tightening force of the fastening bolt is not weakened. A rib is provided between the boss and the opening.
そして、この場合マニホルードガスケットは、取付けを
容易にするために、流路の開口部をシールするリング部
と一体に締結ボルトのボス部に対応して締結ボルトを挿
通するボルト穴部が設けられると共に、前述のようにボ
ス部と開口部との間にリブが有る場合、そのリブ面に沿
ってボルト穴部をリング部とを一体化する連結部が設け
られる（実開昭５８−２３５４号、５７−１３４３４４
号公報等参照）。Further, in this case, the manifold gasket is provided with a bolt hole portion for inserting the fastening bolt corresponding to the boss portion of the fastening bolt integrally with the ring portion for sealing the opening portion of the flow passage, for easy mounting. In addition, when there is a rib between the boss portion and the opening as described above, a connecting portion that integrates the bolt hole portion and the ring portion is provided along the rib surface (Japanese Utility Model Laid-Open No. 58-2354). , 57-134344
No.
ところが、締結ボルトのボス部と流路の開口部の間にリ
ブが有る場合、上記のようなガスケットだと、締結ボル
トの締付力をリブ面からボルト穴部とリング部との連結
部が受けるため、リング部での面圧が弱まってしまう。
この場合、リング部にて面圧が部分的に弱まり、面圧が
偏ってしまうことが確認されている。このため、接合部
のシールが悪化するようになり、接合部から吸気や排気
が洩れたり、あるいは基準以上の締付力で締結ボルトを
締付けなければならないという問題があった。However, when there is a rib between the boss portion of the fastening bolt and the opening of the flow path, the gasket as described above applies the fastening force of the fastening bolt from the rib surface to the connecting portion between the bolt hole portion and the ring portion. As a result, the surface pressure at the ring will be weakened.
In this case, it has been confirmed that the surface pressure is partially weakened at the ring portion, and the surface pressure becomes uneven. As a result, the sealing of the joint deteriorates, and there is a problem in that intake air and exhaust air leak from the joint, or the fastening bolt must be tightened with a tightening force that exceeds the standard.
この考案は、このような問題点を解決することを目的と
している。The present invention aims to solve such a problem.
（課題を解決するための手段） この考案は、それぞれ流路の開口部端面と締結ボルトの
ボス部端面との間に対向するリブ面を有するシリンダヘ
ッドと吸気マニホルードまたは排気マニホルードとの接
合部をシールする内燃機関のマニホルードガスケットに
おいて、前記流路の開口部端面に当接するリング部と、
締結ボルトのボス部端面に当接するボルト穴部とを設け
ると共に、前記リブ面からずらした位置にリング部とボ
ルト穴部との連結部を形成する。(Means for Solving the Problems) This invention provides a joint between an intake manifold or an exhaust manifold and a cylinder head having rib surfaces facing each other between the end surface of the opening of the flow path and the end surface of the boss of the fastening bolt. In a manifold gasket of an internal combustion engine for sealing, a ring portion that abuts an end face of an opening of the flow path,
A bolt hole portion that comes into contact with the end surface of the boss portion of the fastening bolt is provided, and a connecting portion between the ring portion and the bolt hole portion is formed at a position displaced from the rib surface.
（作用） したがって、締結ボルトの締付力はガスケットのリング
部とボルト穴部の間の連結部に加わることがないので、
リング部にて所定、均一な面圧が得られる。(Operation) Therefore, the tightening force of the fastening bolt is not applied to the connecting portion between the gasket ring portion and the bolt hole portion,
A predetermined and uniform surface pressure can be obtained at the ring portion.
（実施例） 第１図は本考案の実施例を示すマニホルードガスケット
１の平面図、第２図、第３図はそれぞれシリンダヘッド
２と吸気マニホルード（または排気マニホルード）３の
接合部分の正面図で、で４、５は吸気（または排気）の
流路、６、７、８、９は締結ボルト（図示しない）のボ
ス部である。(Embodiment) FIG. 1 is a plan view of a manifold gasket 1 showing an embodiment of the present invention, and FIGS. 2 and 3 are front views of a joint portion of a cylinder head 2 and an intake manifold (or an exhaust manifold) 3, respectively. In addition, 4 and 5 are intake (or exhaust) flow paths, and 6, 7, 8 and 9 are boss portions of fastening bolts (not shown).
流路４、５の開口部１０、１１と近接するボス部６、８
は開口部１０、１１と一体に形成され、開口部１０、１
１とある程度離れたボス部７、９は開口部１０、１１と
の間にリブ１２、１３が形成される。Boss portions 6 and 8 close to the openings 10 and 11 of the flow paths 4 and 5, respectively.
Are integrally formed with the openings 10 and 11, and the openings 10 and 1
Ribs 12 and 13 are formed between the boss portions 7 and 9 which are separated from the boss 1 to a certain extent between the openings 10 and 11.
リブ１２、１３は流路１０、１１の中心とボス部７、９
の中心を結ぶ方向に形成され（ただし図中右側のリブ１
２ａ、１３ａは異なる）、ボス部８、９には締結ボルト
の挿通穴１４が、ボス部６、７には締結ボルトのネジ穴
１５が形成される。The ribs 12 and 13 are formed at the centers of the flow paths 10 and 11 and the boss portions 7 and 9 respectively.
It is formed in the direction that connects the centers of the
2a and 13a are different), boss portions 8 and 9 are provided with fastening bolt insertion holes 14, and boss portions 6 and 7 are provided with fastening bolt screw holes 15.
また、流路４、５の開口部１０、１１の端面とボス部
６、７、８、９の端面およびリブ１２、１３の面は同一
面に形成され、シリンダヘッド２側とマニホルード３側
とで対称的に形成される。Further, the end surfaces of the openings 10, 11 of the flow paths 4, 5 and the end surfaces of the boss portions 6, 7, 8, 9 and the surfaces of the ribs 12, 13 are formed on the same surface, and the cylinder head 2 side and the manifold 3 side are formed. Are formed symmetrically.
そして、マニホルードガスケット１は、流路４、５の開
口部１０、１１の端面に当接するリング部１６と、ボス
部６、７、８、９の端面に当接し締結ボルトの挿通穴２
０を形成したボルト穴部１７、１８とが設けられると共
に、前記リブ１２、１３の面から離れた位置にリング部
１６とボルト穴部１８とを結ぶ連結部１９が設けられ
る。The manifold gasket 1 is in contact with the end faces of the openings 10 and 11 of the flow paths 4 and 5, and the end faces of the bosses 6, 7, 8 and 9 so that the manifold gasket 1 comes into contact with the end faces of the fastening bolts 2.
The bolt holes 17 and 18 forming 0 are provided, and the connecting portion 19 that connects the ring portion 16 and the bolt hole 18 is provided at a position apart from the surfaces of the ribs 12 and 13.
この場合、隣り合うリング部１６間の連結部１９は２つ
のリング部１６とボルト穴部１８とをＴ字状に結ぶよう
に設けられ（ただし連結部１９ａは異なる）、また各リ
ング部１６とボルト穴部１７、１８と連結部１９はノン
アスベストのジョイントシート等から一体的に形成され
る。In this case, the connecting portion 19 between the adjacent ring portions 16 is provided so as to connect the two ring portions 16 and the bolt hole portion 18 in a T shape (however, the connecting portion 19a is different), and each ring portion 16 and The bolt hole portions 17 and 18 and the connecting portion 19 are integrally formed from a non-asbestos joint sheet or the like.
このように形成したので、ガスケット１をシリンダヘッ
ド２とマニホルード３の間に介装して締結ボルトにより
接合しても、流路４、５の開口部１０、１１とボス部
７、９との間のリブ１２、１３がガスケット１のリング
部１６とボルト穴部１８との連結部１９に当たることは
ない。このため、ボス部６、８および７、９で締結ボル
トの締付力がリング部１６に均等に作用し、リング部１
６全体にて所定の面圧が確保されるのである。Since it is formed in this way, even if the gasket 1 is interposed between the cylinder head 2 and the manifold 3 and joined by fastening bolts, the openings 10 and 11 of the flow paths 4 and 5 and the bosses 7 and 9 are The ribs 12 and 13 between them do not hit the connecting portion 19 between the ring portion 16 and the bolt hole portion 18 of the gasket 1. Therefore, the tightening force of the fastening bolt acts evenly on the ring portion 16 at the boss portions 6, 8 and 7, 9.
A predetermined surface pressure is ensured in the whole 6.
したがって、締結ボルトを基準値以上に締付けること
で、例えばガスケットのへたりを早めるようなことはな
く、シリンダヘッド２とマニホルード３との良好なシー
ル性が得られ、信頼性ならびに耐久性が向上する。Therefore, by tightening the fastening bolts above the reference value, for example, the settling of the gasket is not accelerated and a good sealability between the cylinder head 2 and the manifold 3 is obtained, and reliability and durability are improved. .
（考案の効果） 以上のように本考案によれば、それぞれ流路の開口部端
面と締結ボルトのボス部端面との間に対向するリブ面を
有するシリンダヘッドと吸気マニホルードまたは排気マ
ニホルードとの接合部をシールする内燃機関のマニホル
ードガスケットにおいて、前記流路の開口部端面に当接
するリング部と、締結ボルトのボス部端面に当接するボ
ルト穴部とを設けると共に、前記リブ面からずらした位
置にリング部とボルト穴部との連結部を形成したので、
リヤグ部各部にて均等な面圧が得られ、マニホルードガ
スケットとしての信頼性が向上する。(Effect of the Invention) As described above, according to the present invention, the cylinder head having the rib surface facing each other between the end surface of the opening of the flow path and the end surface of the boss portion of the fastening bolt is joined to the intake manifold or the exhaust manifold. In a manifold gasket of an internal combustion engine that seals a portion, a ring portion that abuts an end face of an opening of the flow passage and a bolt hole portion that abuts an end face of a boss portion of a fastening bolt are provided, and a position displaced from the rib face is provided. Since the connecting part between the ring part and the bolt hole part was formed on the
A uniform surface pressure is obtained at each part of the rear portion, and reliability as a manifold gasket is improved.
第１図は本考案の実施例を示す平面図、第２図、第３図
はシリンダヘッドおよびマニホルードの接合部分の正面
図である。 ２…シリンダヘッド、３…吸気マニホルードまたは排気
マニホルード、４、５…流路、６〜９…ボス部、１０、
１１…開口部、１２、１３…リブ、１６…リング部、１
７、１８…ボルト穴部、１９…連結部。FIG. 1 is a plan view showing an embodiment of the present invention, and FIGS. 2 and 3 are front views of a joint portion of a cylinder head and a manifold. 2 ... Cylinder head, 3 ... Intake manifold or exhaust manifold, 4, 5 ... Flow path, 6-9 ... Boss section 10,
11 ... Opening part, 12, 13 ... Rib, 16 ... Ring part, 1
7, 18 ... Bolt hole portion, 19 ... Connection portion.
Claims (1)
ボス部端面との間に対向するリブ面を有するシリンダヘ
ッドと吸気マニホールドまたは排気マニホールドとの結
合部をシールする内燃機関のマニホールドガスケットに
おいて、前記流路の開口部端面に当接するリング部と、
締結ボルトのボス部端面に当接するボルト穴部とを設け
ると共に、前記リブ面からずらした位置にリング部とボ
ルト穴部との連結部を形成したことを特徴とする内燃機
関のマニホールドガスケット。1. A manifold gasket for an internal combustion engine for sealing a joint between a cylinder head and an intake manifold or an exhaust manifold, each of which has a rib surface facing each other between an end surface of an opening of a flow passage and an end surface of a boss portion of a fastening bolt. A ring portion abutting the end face of the opening of the flow path,
A manifold gasket for an internal combustion engine, comprising: a bolt hole portion that comes into contact with an end surface of a boss portion of a fastening bolt; and a connecting portion between the ring portion and the bolt hole portion formed at a position displaced from the rib surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13960588U JPH064054Y2 (en) | 1988-10-26 | 1988-10-26 | Manifold gasket for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13960588U JPH064054Y2 (en) | 1988-10-26 | 1988-10-26 | Manifold gasket for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0261166U JPH0261166U (en) | 1990-05-07 |
| JPH064054Y2 true JPH064054Y2 (en) | 1994-02-02 |
Family
ID=31403016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13960588U Expired - Lifetime JPH064054Y2 (en) | 1988-10-26 | 1988-10-26 | Manifold gasket for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064054Y2 (en) |
-
1988
- 1988-10-26 JP JP13960588U patent/JPH064054Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0261166U (en) | 1990-05-07 |
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