JPH0953725A - Gasket for intake manifold - Google Patents
Gasket for intake manifoldInfo
- Publication number
- JPH0953725A JPH0953725A JP20320395A JP20320395A JPH0953725A JP H0953725 A JPH0953725 A JP H0953725A JP 20320395 A JP20320395 A JP 20320395A JP 20320395 A JP20320395 A JP 20320395A JP H0953725 A JPH0953725 A JP H0953725A
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- intake manifold
- bead
- rtv
- grooves
- 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
Landscapes
- Gasket Seals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、内燃機関のシリン
ダヘッド部に接続して、機関の燃焼室内に空気を送り込
むためのインテークマニホルド（吸気多岐管）と、シリ
ンダヘッドとの接合面に介挿するインテークマニホルド
用ガスケットに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake manifold (intake manifold) for connecting air to a cylinder head portion of an internal combustion engine and for feeding air into a combustion chamber of the engine, and inserting the same into a joint surface between the cylinder head and the intake manifold. The present invention relates to an intake manifold gasket.
【０００２】[0002]
【従来の技術】従来インテークマニホルド用ガスケット
は金属製のものが主に使用されているが、この金属製の
ガスケットは熱伝導率が高いという問題点を有している
ため、近時本体をプラスチックで形成したガスケットが
利用されるようになった。その一例が実開平４−23878
号公報に開示されている。2. Description of the Related Art Conventionally, gaskets for intake manifolds are mainly made of metal. However, since the gaskets made of metal have a problem of high thermal conductivity, recently the main body is made of plastic. Gaskets formed in step 1 have come to be used. An example of this is Sankaihei 4-23878.
No. 6,086,045.
【０００３】[0003]
【発明が解決しようとする課題】しかしながらシート状
のガスケットは、締め付け力をガスケットの全面でうけ
るため、接触面圧の不均一が生じやすく、またガスケッ
トの厚さ方向の永久変形が、締め付け力の低下に直結す
るため、ガスケットとしては低いばね定数で大きな変形
が可能である一方、永久変形が小さくなければならない
から、この両方の特性を兼ね備えた素材を作り出すこと
はむずかしいという問題点があり、またガスケット本体
とゴムリング等を組み合わせた複合ガスケットは、製造
上多くの工程を要するため、コストが高くなってしまう
という問題点があった。However, since the sheet-shaped gasket receives the tightening force over the entire surface of the gasket, uneven contact surface pressure is likely to occur, and the permanent deformation in the thickness direction of the gasket is caused by the tightening force. Since it is directly linked to the decrease, large deformation is possible with a low spring constant as a gasket, while permanent deformation must be small, so there is the problem that it is difficult to produce a material that has both of these characteristics. The composite gasket in which the gasket body and the rubber ring are combined requires many steps in manufacturing, and thus has a problem that the cost becomes high.
【０００４】[0004]
【課題を解決するための手段】上述の問題点を解決する
ため本発明においては、インテークマニホルド用ガスケ
ットのガスケット本体を鋼板を素材として形成すると共
に、その開口の周縁部に前記開口を囲繞するビードを、
そのビードの山と溝が連なるように形成し、この表裏両
面の溝内に発泡性の高分子材料（ＲＴＶ）を充填してイ
ンテークマニホルド用ガスケットを構成する。In order to solve the above-mentioned problems, in the present invention, a gasket body of an intake manifold gasket is formed of a steel plate, and a bead that surrounds the opening at the peripheral edge of the opening. To
The bead peaks and grooves are formed so as to be continuous with each other, and a foamable polymer material (RTV) is filled into the grooves on both the front and back surfaces to form an intake manifold gasket.
【０００５】[0005]
【発明の実施の形態】以下、図面について本発明の一実
施例を説明する。図中１は鋼板製のインテークマニホル
ド用ガスケットのガスケット本体、２は吸気用開口、３
は冷却水用開口、４はボルト孔、５はボルト孔４の周囲
に形成したハーフビードである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a gasket main body of a gasket for intake manifold made of steel plate, 2 is an intake opening, 3
Is a cooling water opening, 4 is a bolt hole, and 5 is a half bead formed around the bolt hole 4.
【０００６】本実施例においては、ガスケット本体１の
吸気用開口２と冷却水用開口３の周縁部に、これら各開
口２，３を囲繞するビード６を設けると共に、このビー
ド６の外側にビード６の山６ａと連なる溝７ｂを有する
ビード７を設け、この表裏両面の溝６ｂ，７ｂ内にそれ
ぞれ発泡性の高分子材料（ＲＴＶ）８を充填する。In this embodiment, a bead 6 surrounding the openings 2 and 3 is provided on the periphery of the intake opening 2 and the cooling water opening 3 of the gasket body 1, and a bead is provided outside the bead 6. A bead 7 having a groove 7b continuous with the crest 6a of 6 is provided, and a foamable polymer material (RTV) 8 is filled in each of the grooves 6b and 7b on both front and back surfaces.
【０００７】発泡性の高分子材料（ＲＴＶ）は、Room T
emperature Vulcanizingの略で、室温で硬化する発泡材
であり、商品の一例としてはトスフォームがある。そし
てこの発泡性の高分子材料（ＲＴＶ）８は、図３に詳細
に示すように、ガスケット本体１の表面よりδだけ突出
させるようにする。このδはガスケットを挾持する座面
のうねりの1.1 〜1.5 倍が適当であり、また各ビード
６，７の溝の深さをｈとすれば、δ＝ｈ×（0.1 〜1.0)
が適当である。Foaming polymeric materials (RTV) are Room T
An abbreviation for emperature Vulcanizing, which is a foam material that cures at room temperature. An example of a product is toss foam. The foamable polymer material (RTV) 8 is made to project from the surface of the gasket body 1 by δ, as shown in detail in FIG. This δ is suitable to be 1.1 to 1.5 times the waviness of the seat surface that holds the gasket, and if the groove depth of each bead 6 and 7 is h, then δ = h × (0.1 to 1.0)
Is appropriate.
【０００８】図４は、上述のように構成した本発明のイ
ンテークマニホルド用ガスケットの装着例を示すもの
で、図中９はエンジンブロック、10はインテークマニホ
ルドのフランジ部、11はボルト、12はワッシャーであ
る。FIG. 4 shows an example of mounting the intake manifold gasket of the present invention constructed as described above. In the figure, 9 is an engine block, 10 is a flange portion of the intake manifold, 11 is a bolt, and 12 is a washer. Is.
【０００９】[0009]
【発明の効果】本発明においては、インテークマニホル
ド用ガスケットのガスケット本体１を鋼板を素材として
形成すると共に、その開口２，３の周縁部に前記開口
２，３を囲繞するビード６，７を、そのビード６の山６
ａとビード７の溝７ｂが連なるように形成し、この表裏
両面の溝６ｂ，７ｂ内に発泡性の高分子材料（ＲＴＶ）
８を充填したから、これを図４のようにシリンダーブロ
ック９とインテークマニホルドのフランジ部10との間に
装着してボルト11によって締め付ければ、ＲＴＶ８の頂
部が圧縮されると共に、各ビード６，７の山部がそれぞ
れ挾持面と圧着する。このように本発明によれば、ビー
ド６，７の山部とＲＴＶ８の頂部とによって二重にシー
ルするから、封塞性が非常に向上する。According to the present invention, the gasket main body 1 of the intake manifold gasket is formed from a steel plate, and the beads 6 and 7 surrounding the openings 2 and 3 are formed at the peripheral portions of the openings 2 and 3. Mountain 6 of that bead 6
a and the groove 7b of the bead 7 are formed so as to be continuous, and a foamable polymer material (RTV) is formed in the grooves 6b and 7b on both front and back surfaces
As shown in FIG. 4, by mounting it between the cylinder block 9 and the flange portion 10 of the intake manifold and tightening it with bolts 11, the top portion of the RTV 8 is compressed and each bead 6, The mountain parts of 7 are crimped to the holding surface. As described above, according to the present invention, double sealing is performed by the peak portions of the beads 6 and 7 and the top portion of the RTV 8, so that the sealing property is greatly improved.
【００１０】また各ビード６，７の溝６ｂ，７ｂ内には
ＲＴＶ８が充填されるために、ガスケットを締め付けた
際の各ビード６，７の永久変形が少なくなり、その分シ
ール性能が向上する。またＲＴＶ８の溝６ｂ，７ｂ内へ
の充填は、ロボット装置によって自動化することができ
るから、製造が容易で、しかもコストを低下させること
ができるという効果が得られる。Further, since the RTV 8 is filled in the grooves 6b, 7b of each bead 6, 7, the permanent deformation of each bead 6, 7 when the gasket is tightened is reduced, and the sealing performance is improved accordingly. . Further, since the filling of the RTV 8 into the grooves 6b and 7b can be automated by a robot apparatus, there is an effect that the manufacturing is easy and the cost can be reduced.
【図１】本発明のインテークマニホルド用ガスケットの
平面図である。FIG. 1 is a plan view of an intake manifold gasket of the present invention.
【図２】図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】図２の要部の拡大図である。FIG. 3 is an enlarged view of a main part of FIG.
【図４】本発明ガスケットの装着状態を示す断面図であ
る。FIG. 4 is a cross-sectional view showing a mounted state of the gasket of the present invention.
１ ガスケット本体 ２ 吸気用開口 ３ 冷却水用開口 ４ ボルト孔 ５ ハーフビード ６ ビード ６ａ 山 ６ｂ 溝 ７ ビード ７ａ 山 ７ｂ 溝 ８ 発泡性の高分子材料（ＲＴＶ） ９ エンジンブロック 10 インテークマニホルドのフランジ部 11 ボルト 12 ワッシャー 1 Gasket Main Body 2 Intake Opening 3 Cooling Water Opening 4 Bolt Hole 5 Half Bead 6 Bead 6a Mountain 6b Groove 7 Bead 7a Mountain 7b Groove 8 Foaming Polymer Material (RTV) 9 Engine Block 10 Intake Manifold Flange 11 Bolt 12 washers
Claims (1)
スケット本体を鋼板を素材として形成すると共に、その
開口の周縁部に前記開口を囲繞するビードを、そのビー
ドの山と溝が連なるように形成し、この表裏両面の溝内
に発泡性の高分子材料（ＲＴＶ）を充填したことを特徴
とするインテークマニホルド用ガスケット。1. A gasket main body of an intake manifold gasket is formed of a steel plate, and a bead surrounding the opening is formed in a peripheral portion of the opening so that a mountain and a groove of the bead are continuous with each other. A gasket for an intake manifold, which is obtained by filling a foamable polymer material (RTV) in the grooves on both sides.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07203203A JP3133924B2 (en) | 1995-08-09 | 1995-08-09 | Gasket for intake manifold |
| US09/299,148 US6125214A (en) | 1995-03-29 | 1999-04-26 | Image processing method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07203203A JP3133924B2 (en) | 1995-08-09 | 1995-08-09 | Gasket for intake manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0953725A true JPH0953725A (en) | 1997-02-25 |
| JP3133924B2 JP3133924B2 (en) | 2001-02-13 |
Family
ID=16470181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07203203A Expired - Fee Related JP3133924B2 (en) | 1995-03-29 | 1995-08-09 | Gasket for intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3133924B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007049339A1 (en) * | 2005-10-25 | 2007-05-03 | Daiki Industries, Co., Ltd. | Gasket |
-
1995
- 1995-08-09 JP JP07203203A patent/JP3133924B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007049339A1 (en) * | 2005-10-25 | 2007-05-03 | Daiki Industries, Co., Ltd. | Gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3133924B2 (en) | 2001-02-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
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| R250 | Receipt of annual fees |
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| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 7 Free format text: PAYMENT UNTIL: 20071124 |
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| LAPS | Cancellation because of no payment of annual fees |