JPH0122927Y2 - - Google Patents
Info
- Publication number
- JPH0122927Y2 JPH0122927Y2 JP1984154287U JP15428784U JPH0122927Y2 JP H0122927 Y2 JPH0122927 Y2 JP H0122927Y2 JP 1984154287 U JP1984154287 U JP 1984154287U JP 15428784 U JP15428784 U JP 15428784U JP H0122927 Y2 JPH0122927 Y2 JP H0122927Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing material
- fluid sealing
- spacer
- present
- metal
- 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
Links
- 239000003566 sealing material Substances 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は内燃機関の排気系フランジのシールに
使用するものである。[Detailed Description of the Invention] Industrial Application Field The present invention is used for sealing an exhaust system flange of an internal combustion engine.
従来の技術
従来のこの種のガスケツトは第８図、第９図に
示すように、弾性材料０１をベースとして表面に
金属の被覆０２をしたもの、あるいは第１０図、
第１１図に示すように、金属性シート０３を複数
枚重ね、シール部にビード加工０４を施し、これ
等を金属板０５で被覆したものが用いられてい
た。BACKGROUND ART Conventional gaskets of this type are made of an elastic material 01 with a metal coating 02 on the surface, as shown in FIGS. 8 and 9, or as shown in FIGS.
As shown in FIG. 11, a plurality of metal sheets 03 were stacked one on top of the other, the sealing portions were beaded 04, and these were covered with a metal plate 05.
考案が解決しようとする問題点
弾性材料の前者は熱により劣化し、ヘタリ易
く、そのことによりボルトの締め付けトルクが低
下する問題点があつた。また金属板を重ね合わせ
た後者はビード部が強い力で相手フランジ面に押
しつけられるため圧痕が付いたり、さらにフラン
ジの熱変形によりシール面が動き、当該シール面
が摩耗し、シール環境を著しく悪化させる問題点
があつた。Problems to be Solved by the Invention The former, which is an elastic material, deteriorates due to heat and tends to become stiff, which poses a problem in that the tightening torque of the bolt decreases. In addition, in the latter case, where metal plates are overlapped, the bead part is pressed against the mating flange surface with strong force, resulting in impressions, and furthermore, the sealing surface moves due to thermal deformation of the flange, causing wear on the sealing surface, significantly worsening the sealing environment. There was a problem with that.
問題点を解決するための手段
本考案は流体シール材１を加熱膨張性のセラミ
ツクにより構成し、該流体シール材１のボルト３
による締付部に、流体シール材１の初期密度と熱
膨張によつて適正な面圧が得られるように調整す
る金属又は非金属からなるスペーサ２を設け、シ
ール材厚さＨをスペーサ厚さｈより大ならしめる
ことにより前記問題点を解決した。Means for Solving the Problems The present invention comprises a fluid sealing material 1 made of heat-expandable ceramic, and a bolt 3 of the fluid sealing material 1.
A spacer 2 made of metal or non-metal is provided in the tightening part of the fluid sealing material 1 to adjust the initial density and thermal expansion of the fluid sealing material 1 to obtain an appropriate surface pressure. The above problem was solved by making it larger than h.
実施例
本考案を添付図面により説明する。本考案のシ
ール材１のセラミツクは加熱により膨張する性質
を持つており、この特性を利用し、シール効果を
得るものである。EXAMPLES The present invention will be explained with reference to the accompanying drawings. The ceramic of the sealing material 1 of the present invention has a property of expanding when heated, and this property is utilized to obtain a sealing effect.
第１図、第２図において流体シール材１は加熱
膨張性耐熱セラミツクで、円形、角形等所望の形
状に作り、特に締付部に初期密度と熱膨張によつ
て適正な面圧が得られるように調整するスペーサ
２を内在せしめる。この時流体シール材１の厚さ
Ｈはスペーサ２の厚さｈより厚くとり、その差Ｈ
−ｈは締付の際圧縮され、シール材の密度を上昇
させシール材をフランジ４面に十分なじませるた
めである。 In Figs. 1 and 2, the fluid sealing material 1 is made of heat-expandable heat-resistant ceramic and is made into a desired shape such as circular or square, so that appropriate surface pressure can be obtained through initial density and thermal expansion, especially in the tightening part. A spacer 2 is included for adjustment. At this time, the thickness H of the fluid sealing material 1 is set thicker than the thickness h of the spacer 2, and the difference H
-h is compressed during tightening, increases the density of the sealing material, and allows the sealing material to sufficiently fit onto the 4 surfaces of the flange.
作 用
本考案ガスケツトを第３図に示すようフランジ
４，４間に置きボルト３により締付けた所、流体
シール材１はスペーサ２の厚さまで十分圧縮され
密度が上昇する。又本考案ガスケツトを第４図に
示すように組付け、フランジ４に熱をかけると、
流体シール材１は加熱により膨張し、より高いシ
ール面圧を得る。Operation When the gasket of the present invention is placed between flanges 4 and 4 and tightened with bolts 3 as shown in FIG. 3, fluid sealing material 1 is sufficiently compressed to the thickness of spacer 2 and its density increases. Also, when the gasket of the present invention is assembled as shown in Fig. 4 and heat is applied to the flange 4,
The fluid sealing material 1 expands upon heating and obtains higher sealing surface pressure.
他の実施例
本考案の他の実施例を第５図、第６図、第７図
に示すように流体通過孔５の外周に流体シール材
１を設け、流体シール材１の外周にボルト孔を有
するスペーサ２を設ける。Other Embodiments As shown in FIGS. 5, 6, and 7, another embodiment of the present invention includes a fluid sealing material 1 provided on the outer periphery of the fluid passage hole 5, and a bolt hole provided on the outer periphery of the fluid sealing material 1. A spacer 2 is provided.
本考案の効果
シール材１はセラミツクであるが熱膨張性であ
るので、高いシール面圧が得られ、かつ相手フラ
ンジ面に圧痕を生じさせることなく、さらに熱膨
張性であるので締め付けトルクが永続できる。又
セラミツクの圧縮をスペーサ２により適正な面圧
が得られるように調整するので、膨張性を長く保
持することができ、長期間の使用でフランジが熱
変形しても十分なシール効果を確保できる。Effects of the present invention Sealing material 1 is made of ceramic but has thermal expansion properties, so high sealing surface pressure can be obtained, and no indentations are created on the mating flange surface.Furthermore, since it is thermal expansion, the tightening torque can be maintained permanently. can. In addition, since the compression of the ceramic is adjusted using the spacer 2 to obtain an appropriate surface pressure, the expandability can be maintained for a long time, and a sufficient sealing effect can be ensured even if the flange is thermally deformed during long-term use. .
第１図は本考案実施例の平面図、第２図は第１
図の−断面図、第３図は本考案をボルトによ
り締め付けた状態の断面図、第４図は流体シール
材が加熱により膨張する状態の断面図、第５図は
本考案の他の実施例の平面図、第６図は第５図の
−断面図、第７図は第５図の−断面図、
第８図、第９図は従来例の断面図、平面図、第１
０図、第１１図は他の従来例の断面図、平面図で
ある。
１……流体シール材、２……スペーサ、３……
ボルト、４……フランジ。
Fig. 1 is a plan view of an embodiment of the present invention, and Fig. 2 is a plan view of an embodiment of the present invention.
Figure 3 is a sectional view of the present invention in a state where it is tightened with bolts, Figure 4 is a sectional view of the fluid sealing material expanded by heating, and Figure 5 is another embodiment of the present invention. 6 is a cross-sectional view of FIG. 5, FIG. 7 is a cross-sectional view of FIG. 5,
Figures 8 and 9 are sectional views, plan views, and 1st views of the conventional example.
0 and 11 are a sectional view and a plan view of another conventional example. 1... Fluid sealing material, 2... Spacer, 3...
Bolt, 4...Flange.
Claims (1)
り構成し、該流体シール材１のボルト３による締
付部に、流体シール材１の初期密度と熱膨張によ
つて適正な面圧が得られるように調整する金属又
は非金属からなるスペーサ２を設け、シール材厚
さＨをスペーサ厚さｈより大ならしめてなる内燃
機関の排気系フランジガスケツト。 The fluid sealing material 1 is made of heat-expandable ceramic, and the fluid sealing material 1 is made of a heat-expandable ceramic so that an appropriate surface pressure can be obtained at the tightening portion of the fluid sealing material 1 by the bolt 3 due to the initial density and thermal expansion of the fluid sealing material 1. This exhaust system flange gasket for an internal combustion engine is provided with a spacer 2 made of a metal or non-metal to be adjusted, and the thickness H of the sealing material is made larger than the thickness h of the spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984154287U JPH0122927Y2 (en) | 1984-10-15 | 1984-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984154287U JPH0122927Y2 (en) | 1984-10-15 | 1984-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6170551U JPS6170551U (en) | 1986-05-14 |
| JPH0122927Y2 true JPH0122927Y2 (en) | 1989-07-12 |
Family
ID=30712283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984154287U Expired JPH0122927Y2 (en) | 1984-10-15 | 1984-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0122927Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5813683A (en) * | 1981-07-18 | 1983-01-26 | Nichias Corp | Packing for automobile exhaust gas cleaner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55116836U (en) * | 1979-02-09 | 1980-08-18 |
-
1984
- 1984-10-15 JP JP1984154287U patent/JPH0122927Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5813683A (en) * | 1981-07-18 | 1983-01-26 | Nichias Corp | Packing for automobile exhaust gas cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6170551U (en) | 1986-05-14 |
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