JP2554257Y2 - Bowl-shaped plug for internal combustion engine - Google Patents
Bowl-shaped plug for internal combustion engineInfo
- Publication number
- JP2554257Y2 JP2554257Y2 JP8161891U JP8161891U JP2554257Y2 JP 2554257 Y2 JP2554257 Y2 JP 2554257Y2 JP 8161891 U JP8161891 U JP 8161891U JP 8161891 U JP8161891 U JP 8161891U JP 2554257 Y2 JP2554257 Y2 JP 2554257Y2
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- bowl
- shaped plug
- casting
- 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
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Vibration Prevention Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、内燃機関に使用する内
燃機関用椀形プラグに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bowl-shaped plug used for an internal combustion engine.
【０００２】[0002]
【従来の技術】一般に、図５に示すように内燃機関のシ
リンダブロック４或いはシリンダヘッド等には、鋳造す
る時に必要な鋳造用鋳抜孔６が形成されている（例え
ば、実開平２−１４４６３９号公報）。2. Description of the Related Art Generally, as shown in FIG. 5, a casting block 6 necessary for casting is formed in a cylinder block 4 or a cylinder head of an internal combustion engine. Gazette).
【０００３】尚、９は各シリンダである。従って、図６
に示すようにシリンダブロック４又はシリンダヘッド５
として使用する時には、椀形をした椀形プラグ８をシリ
ンダブロック４，シリンダヘッド５の鋳造用鋳抜孔６に
装着してシリンダブロック４及びシリンダヘッド５内を
密封すると共に内燃機関内部から発生する騒音を遮音し
ている。Reference numeral 9 denotes each cylinder. Therefore, FIG.
As shown in the cylinder block 4 or cylinder head 5
When used, the bowl-shaped plug 8 having the bowl shape is mounted in the casting hole 6 for casting of the cylinder block 4 and the cylinder head 5 to seal the inside of the cylinder block 4 and the cylinder head 5 and noise generated from the inside of the internal combustion engine. Is sound-insulating.
【０００４】[0004]
【考案が解決しようとする課題】然し乍ら、上記椀形プ
ラグ８は、冷間圧延鋼板又はステンレス板をプレス成形
した単に凹状になった肉厚も薄いものであるため、内燃
機関内部から発生する騒音が椀形プラグ８の部分を通し
て透過してしまう。However, since the bowl-shaped plug 8 is formed by simply pressing a cold-rolled steel plate or a stainless steel plate into a concave shape and having a small thickness, the noise generated from the inside of the internal combustion engine is reduced. Is transmitted through the bowl-shaped plug 8.
【０００５】本考案は上記に鑑みてなされたもので、内
燃機関内部から発生する騒音を充分に遮音する内燃機関
用椀形プラグを提供することを目的とする。[0005] The present invention has been made in view of the above, and an object of the present invention is to provide a bowl-shaped plug for an internal combustion engine that sufficiently shields noise generated from inside the internal combustion engine.
【０００６】[0006]
【課題を解決するための手段】本考案は、内燃機関の鋳
造用鋳抜孔に装着して内燃機関内を密閉する内燃機関用
椀形プラグにおいて、椀形プラグ本体の凹部内部に遮音
材を固着したことを特徴とする。SUMMARY OF THE INVENTION The present invention is directed to a bowl-shaped plug for an internal combustion engine which is mounted in a cast hole for casting of the internal combustion engine and hermetically seals the inside of the internal combustion engine. It is characterized by having done.
【０００７】[0007]
【作用】椀形プラグ本体の凹部内部に遮音材を固着した
内燃機関用椀形プラグを、鋳造用鋳抜孔に装着すれば、
椀形プラグ本体により内燃機関内が密封されると共に凹
部内部に固着された遮音材により遮断されて内燃機関内
部から発生する騒音を充分に遮音することができる。[Action] If a bowl-shaped plug for an internal combustion engine, in which a sound insulating material is fixed inside the concave portion of the bowl-shaped plug body, is mounted in a casting hole for casting,
The inside of the internal combustion engine is sealed by the bowl-shaped plug main body, and is blocked by the sound insulating material fixed inside the concave portion, so that noise generated from the inside of the internal combustion engine can be sufficiently shielded.
【０００８】[0008]
【実施例】以下、図より本考案を詳細に説明する。図１
は、本考案に係る内燃機関用椀形プラグの一実施例を示
したものである。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG.
1 shows an embodiment of a bowl-shaped plug for an internal combustion engine according to the present invention.
【０００９】図において、１は椀形プラグ本体で、冷間
圧延鋼板又はステンレス板を凹状にプレス成形したもの
である。この椀形プラグ本体１の凹部２内に、ラバー，
発泡ラバー，発泡ウレタン又は制振塗料等の遮音材３を
固着してある。In FIG. 1, reference numeral 1 denotes a bowl-shaped plug body, which is formed by pressing a cold-rolled steel plate or a stainless steel plate into a concave shape. In the recess 2 of the bowl-shaped plug body 1, rubber,
A sound insulating material 3 such as foamed rubber, foamed urethane or vibration damping paint is fixed.
【００１０】本考案の内燃機関用椀形プラグＡは、この
ようになっている。そして、図２に示すように、内燃機
関のシリンダブロック４及びシリンダヘッド５の鋳造用
鋳抜孔６に、上記内燃機関用椀形プラグＡを装着してシ
リンダブロック４及びシリンダヘッド５内を密閉する。The bowl-shaped plug A for an internal combustion engine according to the present invention is configured as described above. Then, as shown in FIG. 2, the cup-shaped plug A for the internal combustion engine is mounted in the casting hole 6 for casting of the cylinder block 4 and the cylinder head 5 of the internal combustion engine to seal the inside of the cylinder block 4 and the cylinder head 5. .
【００１１】上記した椀形プラグ本体１の凹部２内部に
遮音材３を固着した内燃機関用椀形プラグＡを、鋳造用
鋳抜孔６に装着すれば、内燃機関のシリンダブロック４
及びシリンダヘッド５内が椀形プラグ本体１自体により
密閉される。また、椀形プラグ本体１の凹部２内部に固
着されたラバー，発泡ラバー，発泡ウレタン又は制振塗
料等の遮音材３により内燃機関内部から発生する騒音を
遮音するので、内燃機関内部から発生する騒音を充分に
低減することができ、外部への透過音が少なくなる。When the bowl-shaped plug A for the internal combustion engine, in which the sound insulating material 3 is fixed inside the recess 2 of the bowl-shaped plug body 1 described above, is mounted in the casting hole 6, the cylinder block 4 of the internal combustion engine can be obtained.
The inside of the cylinder head 5 is sealed by the bowl-shaped plug body 1 itself. In addition, since noise generated from the inside of the internal combustion engine is blocked by the sound insulating material 3 such as rubber, foamed rubber, urethane foam, or vibration damping paint fixed inside the recess 2 of the bowl-shaped plug main body 1, the sound is generated from inside the internal combustion engine. Noise can be sufficiently reduced, and transmitted sound to the outside can be reduced.
【００１２】図３は、本考案の内燃機関用椀形プラグと
従来の椀形プラグをそれぞれ内燃機関に装着した場合の
騒音レベルを比較した図である。この図から判るよう
に、本考案は、従来の椀形プラグに比較してエンジン回
転数全域に亘って内燃機関から発生する騒音を充分に消
音できる効果がある。FIG. 3 is a diagram comparing noise levels when the bowl-shaped plug for an internal combustion engine of the present invention and a conventional bowl-shaped plug are mounted on an internal combustion engine, respectively. As can be seen from this figure, the present invention has an effect of sufficiently reducing the noise generated from the internal combustion engine over the entire engine speed as compared with the conventional bowl-shaped plug.
【００１３】図４は、本考案に係る内燃機関用椀形プラ
グの他の実施例を示したものである。この実施例は、椀
形プラグ本体１の凹部２内部に空間部７が形成されるよ
うに遮音材３を固着したものである。FIG. 4 shows another embodiment of the bowl-shaped plug for an internal combustion engine according to the present invention. In this embodiment, a sound insulating material 3 is fixed so that a space 7 is formed inside a concave portion 2 of a bowl-shaped plug main body 1.
【００１４】勿論、遮音材３として用いるものは、前記
実施例と同様なラバー，発泡ラバー，発泡ウレタン又は
制振塗料等である。この場合は、空間部７による遮音作
用が加えられるので、より遮音効果がある。Of course, rubber, foamed rubber, urethane foam, vibration damping paint, etc. similar to those used in the above embodiment are used as the sound insulating material 3. In this case, since the sound insulating effect by the space 7 is added, the sound insulating effect is further improved.
【００１５】[0015]
【考案の効果】以上説明したように本考案は、内燃機関
内部から発生する騒音を充分に消音することができる効
果を奏する。As described above, the present invention has an effect that noise generated from inside the internal combustion engine can be sufficiently suppressed.
【図１】本考案の内燃機関用椀形プラグの一実施例の断
面図である。FIG. 1 is a sectional view of an embodiment of a bowl-shaped plug for an internal combustion engine according to the present invention.
【図２】図１の内燃機関用椀形プラグを内燃機関に装着
した状態の一部断面側面図である。FIG. 2 is a partial cross-sectional side view showing a state where the bowl-shaped plug for the internal combustion engine of FIG. 1 is mounted on the internal combustion engine.
【図３】本考案の椀形プラグと従来の椀形プラグをそれ
ぞれ内燃機関に装着した場合の騒音レベルを比較した図
である。FIG. 3 is a diagram comparing noise levels when the bowl-shaped plug of the present invention and a conventional bowl-shaped plug are respectively mounted on an internal combustion engine.
【図４】本考案の内燃機関用椀形プラグの他の実施例の
断面図である。FIG. 4 is a sectional view of another embodiment of the bowl-shaped plug for an internal combustion engine according to the present invention.
【図５】シリンダブロックの斜視図である。FIG. 5 is a perspective view of a cylinder block.
【図６】従来の内燃機関用椀形プラグを内燃機関に装着
した状態の一部断面側面図である。FIG. 6 is a partial cross-sectional side view showing a state where a conventional bowl-shaped plug for an internal combustion engine is mounted on the internal combustion engine.
１ 椀形プラグ本体 ２ 凹部 ３ 遮音材 ４ シリンダブロック ５ シリンダヘッド ６ 鋳造用鋳抜孔 DESCRIPTION OF SYMBOLS 1 Bowl-shaped plug main body 2 Concave part 3 Sound insulation material 4 Cylinder block 5 Cylinder head 6 Casting hole for casting
Claims (1)
機関内を密閉する内燃機関用椀形プラグにおいて、椀形
プラグ本体の凹部内部に遮音材を固着したことを特徴と
する内燃機関用椀形プラグ。1. An internal combustion engine having a bowl-shaped plug mounted in a casting hole for internal combustion engine and hermetically sealing the inside of the internal combustion engine, wherein a sound insulating material is fixed in a recess inside the bowl-shaped plug body. Bowl shaped plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8161891U JP2554257Y2 (en) | 1991-10-08 | 1991-10-08 | Bowl-shaped plug for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8161891U JP2554257Y2 (en) | 1991-10-08 | 1991-10-08 | Bowl-shaped plug for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0532750U JPH0532750U (en) | 1993-04-30 |
| JP2554257Y2 true JP2554257Y2 (en) | 1997-11-17 |
Family
ID=13751317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8161891U Expired - Lifetime JP2554257Y2 (en) | 1991-10-08 | 1991-10-08 | Bowl-shaped plug for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2554257Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003106238A (en) * | 2001-07-27 | 2003-04-09 | Usui Internatl Ind Co Ltd | Fuel delivery pipe |
-
1991
- 1991-10-08 JP JP8161891U patent/JP2554257Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0532750U (en) | 1993-04-30 |
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