JPH06159517A - Combustion gas sealing structure of internal combustion engine - Google Patents

Combustion gas sealing structure of internal combustion engine

Info

Publication number
JPH06159517A
JPH06159517A JP31468692A JP31468692A JPH06159517A JP H06159517 A JPH06159517 A JP H06159517A JP 31468692 A JP31468692 A JP 31468692A JP 31468692 A JP31468692 A JP 31468692A JP H06159517 A JPH06159517 A JP H06159517A
Authority
JP
Japan
Prior art keywords
circumferential
cylinder
projection
gasket
circumferential projection
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
Application number
JP31468692A
Other languages
Japanese (ja)
Other versions
JP3295467B2 (en
Inventor
Masanori Nakai
正典 中井
Akihiko Motoki
彰彦 本木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP31468692A priority Critical patent/JP3295467B2/en
Publication of JPH06159517A publication Critical patent/JPH06159517A/en
Application granted granted Critical
Publication of JP3295467B2 publication Critical patent/JP3295467B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Gasket Seals (AREA)

Abstract

PURPOSE:To prevent corrosion of a gasket packing and a sealing surface of a part in contact with it and to prevent occurrence of gas leakage. CONSTITUTION:On an upper part of a cylinder of an internal combustion engine, a gas sealing part is constituted of a cylinder liner 1, a gasket packing 2 and a cylinder head 3, on the upper end of the cylinder liner 1, an internally fit circumferential projection 1b is constituted, inside of an externally fit circumferential projection 3a on the side of the cylinder head 3, the internally fit circumferential projection 1b is fit with a faucet, and on a circumferential sealing surface 1 constituted on the upper surface of a circumferential collar 1c projected to the outer periphery of the cylinder liner 1, the gasket packing 2 and the externally fit circumferential projection 3a are placed. On a rising part of the internally fit circumferential projection 1b, a circumferential groove 1a is constituted, and in a space constituted of the circumferential groove 1a, the inner periphery of the gasket packing 2, the inner periphery of the externally fit circumferential projection 3a and the outer peripheral surface of the internally fit circumferential projection 1b, a liquid gasketing agent is filled.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は内燃機関の燃焼ガスシー
ル部の構成に関する技術である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a combustion gas seal portion of an internal combustion engine.

【0002】[0002]

【従来の技術】従来から、シリンダライナの上端に内嵌
円周突起を設け、該内嵌円周突起の基部であって、円周
鍔の上面の円周シール面の内周側に、加工をする為のバ
イトの逃し溝として円周溝が穿設されていたのである。
しかし、該円周溝はそのまま空間として残存されてお
り、該部分をシールの為に使用するという技術は無かっ
たのである。
2. Description of the Related Art Conventionally, an inner fitting circumferential projection is provided on the upper end of a cylinder liner, and a base portion of the inner fitting circumferential projection is machined on the inner circumferential side of the circumferential sealing surface on the upper surface of the circumferential brim. A circumferential groove was formed as a relief groove for the bite for cutting.
However, the circumferential groove remains as a space as it is, and there has been no technique for using this portion for sealing.

【0003】[0003]

【発明が解決しようとする課題】内燃機関一般の中で
も、特に硫黄分の多い燃料を使用する低負荷仕様の直噴
式ディーゼル機関に関する技術である。従来から、冷却
方式を海水直接冷却機構としたディーゼル機関において
は、予備燃焼室を具備したものが多かったのである。し
かし、最近は直噴式ディーゼル機関が増加してきたので
ある。この場合に、海水直接冷却方式であると燃焼室の
温度が低くなり、燃焼ガス中の亜硫酸ガスが露点以下と
なると硫酸成分に変化し、該硫酸成分が燃焼ガスシール
部を構成する、内嵌円周突起の周囲の円周溝の部分に溜
まり、徐々に周囲のガスケットパッキンの接触面の腐食
を促進し、最終的にはガスケットパッキンや相手部品の
シール面の腐食により、ガス漏れが発生していたのであ
る。本発明はこの不具合を解消するものである。
Among the internal combustion engines in general, the present invention relates to a low-load direct-injection diesel engine using a fuel having a high sulfur content. Conventionally, many diesel engines having a seawater direct cooling mechanism as a cooling system have a pre-combustion chamber. However, the number of direct injection diesel engines has recently increased. In this case, when the direct cooling method of seawater lowers the temperature of the combustion chamber, and when the sulfurous acid gas in the combustion gas becomes lower than the dew point, it changes to a sulfuric acid component, and the sulfuric acid component constitutes the combustion gas seal portion. It accumulates in the circumferential groove around the circumferential protrusion and gradually promotes corrosion of the contact surface of the surrounding gasket packing, and eventually gas corrosion occurs due to corrosion of the gasket packing and the sealing surface of the mating component. It was. The present invention solves this problem.

【0004】[0004]

【課題を解決するための手段】本発明の解決しようとす
る課題は以上の如くであり、次に該課題を解決するため
の手段を説明する。即ち、内燃機関のシリンダ上部であ
って、シリンダライナ1とガスケットパッキン2とシリ
ンダヘッド3によりガスシール部を構成し、シリンダラ
イナ1の上端に内嵌円周突起1bを構成し、シリンダヘ
ッド3の側の外嵌円周突起3aの内部に、内嵌円周突起
1bをインロー嵌合し、該シリンダライナ1の外周に突
出した円周鍔1cの上面をガスケットパッキン2を載置
する円周シール面1dに構成し、該円周シール面1dの
上にガスケットパッキン2を載置し、更に前記外嵌円周
突起3aを載置する構成において、円周シール面1dの
内周側で、内嵌円周突起1bの立ち上がり部に円周溝1
aを構成し、該円周溝1aとガスケットパッキン2の内
周と、外嵌円周突起3aの内周と、内嵌円周突起1bの
外周面が構成する空間に、液状ガスケット剤5を充填し
たものである。
The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, in the upper part of the cylinder of the internal combustion engine, the cylinder liner 1, the gasket packing 2, and the cylinder head 3 form a gas seal portion, and the upper end of the cylinder liner 1 forms an inner fitting circumferential projection 1b. A circumferential seal in which the inner fitting circumferential projection 1b is fitted in the inside of the outer fitting circumferential projection 3a by spigot fitting, and the gasket packing 2 is placed on the upper surface of the circumferential flange 1c protruding to the outer circumference of the cylinder liner 1. In the configuration in which the surface 1d is formed, the gasket packing 2 is placed on the circumferential sealing surface 1d, and the outer fitting circumferential protrusion 3a is further placed, the inner circumferential side of the circumferential sealing surface 1d is The circumferential groove 1 is formed at the rising portion of the fitting circumferential protrusion 1b.
a, and the liquid gasket agent 5 is placed in the space formed by the inner circumference of the circumferential groove 1a and the gasket packing 2, the inner circumference of the outer fitting circumferential projection 3a, and the outer circumferential surface of the inner fitting circumferential projection 1b. It is filled.

【0005】また、内燃機関のシリンダ上部であって、
シリンダライナ1とガスケットパッキン2とシリンダヘ
ッド3によりガスシール部を構成し、シリンダライナ1
の上端に内嵌円周突起1bを構成し、該内嵌円周突起1
bの外周に、円周鍔1cの上面に構成した円周シール面
1dの上に載置したガスケットパッキン2を嵌合し、該
ガスケットパッキン2の上面にシリンダヘッド3を載置
締結した構成において、円周シール面1dの内周側で、
内嵌円周突起1bの立ち上がり部に円周溝1aを構成
し、該円周溝1aとガスケットパッキン2の内周と、シ
リンダヘッド3の下面と、内嵌円周突起1bの外周面が
構成する空間に、液状ガスケット剤5を充填したもので
ある。
In the upper part of the cylinder of the internal combustion engine,
The cylinder liner 1, the gasket packing 2, and the cylinder head 3 form a gas seal portion.
An inner fitting circumferential protrusion 1b is formed on the upper end of the inner fitting circumferential protrusion 1b.
In a configuration in which the gasket packing 2 placed on the circumferential sealing surface 1d formed on the upper surface of the circumferential flange 1c is fitted around the outer periphery of b, and the cylinder head 3 is placed and fastened on the upper surface of the gasket packing 2. , On the inner peripheral side of the circumferential sealing surface 1d,
A circumferential groove 1a is formed on the rising portion of the inner fitting circumferential projection 1b, and the inner circumference of the circumferential groove 1a and the gasket packing 2, the lower surface of the cylinder head 3, and the outer peripheral surface of the inner fitting circumferential projection 1b are configured. The space to be filled is filled with the liquid gasket material 5.

【0006】[0006]

【作用】次に作用を説明する。該内嵌円周突起1bの外
周の基部で、ガスケットパッキン2とシリンダヘッド3
とシリンダライナ1との間で構成する、円周溝1aの部
分の空間に、液状ガスケット剤5を充填して、空隙を無
くすことにより、燃焼ガス中の亜硫酸ガスが露点以下と
なることにより発生した硫酸成分の滞留部分を無くすの
である。これにより、従来発生していた、円周溝1aの
部分に溜まった硫酸成分が、燃焼ガスシール部を構成す
る内嵌円周突起の周囲の円周溝の部分に溜まり、徐々に
周囲のガスケットパッキンの接触面の腐食を促進し、最
終的にはガスケットパッキンや相手部品のシール面の腐
食により、ガス漏れが発生するという不具合を解消する
ことが出来るのである。
[Operation] Next, the operation will be described. The gasket packing 2 and the cylinder head 3 are provided at the base of the outer circumference of the inner fitting circumferential projection 1b.
Generated when the sulfurous acid gas in the combustion gas is below the dew point by filling the liquid gasket material 5 in the space defined by the circumferential groove 1a formed between the cylinder liner 1 and the cylinder liner 1 to eliminate voids. The retained portion of the generated sulfuric acid component is eliminated. As a result, the sulfuric acid component accumulated in the circumferential groove 1a, which has been conventionally generated, is accumulated in the circumferential groove portion around the internally fitted circumferential protrusions forming the combustion gas seal portion, and gradually the surrounding gaskets. Corrosion of the contact surface of the packing can be accelerated, and finally, the problem of gas leakage due to the corrosion of the gasket packing and the sealing surface of the mating component can be eliminated.

【0007】[0007]

【実施例】次に実施例を説明する。図1はシリンダライ
ナ1の円周鍔1cの部分の内周に出来る円周溝1aの部
分に液状ガスケット剤5を充填している状態の斜視図、
図2はシリンダライナ1とガスケットパッキン2とシリ
ンダヘッド3とシリンダブロック4の組立状態に於ける
液状ガスケット剤5の位置を示す側面断面図、図3はシ
リンダライナ1とガスケットパッキン2とシリンダヘッ
ド3とシリンダブロック4を組み立てる前の状態を示す
側面断面図、図4はシリンダヘッド3の下面を平面に構
成した構成の側面断面図、図5は図4の構成の組立前の
状態を示す側面断面図である。
EXAMPLES Next, examples will be described. FIG. 1 is a perspective view showing a state where a liquid gasket agent 5 is filled in a portion of a circumferential groove 1a formed in an inner circumference of a portion of a circumferential flange 1c of a cylinder liner 1,
2 is a side sectional view showing the position of the liquid gasket agent 5 in the assembled state of the cylinder liner 1, the gasket packing 2, the cylinder head 3, and the cylinder block 4, and FIG. 3 is the cylinder liner 1, the gasket packing 2, and the cylinder head 3. 4 is a side sectional view showing a state before assembling the cylinder block 4 and the cylinder block 4, FIG. 4 is a side sectional view showing a configuration in which the lower surface of the cylinder head 3 is formed into a plane, and FIG. It is a figure.

【0008】図1・図2・図3において請求項1の発明
を説明する。ディーゼル機関のシリンダ及び燃焼室は、
シリンダブロック4の内部にシリンダライナ1を嵌入
し、該シリンダライナ1の上部に、ガスケットパッキン
2を載置した上に、シリンダヘッド3を載置し、シリン
ダヘッドボルトにより締結し、シリンダ及び燃焼室を構
成し、シリンダライナ1の内部にクランクロッドにより
上下するピストンを嵌装して密閉状態を構成している。
The invention of claim 1 will be described with reference to FIGS. 1, 2, and 3. The cylinder and combustion chamber of a diesel engine
The cylinder liner 1 is fitted inside the cylinder block 4, the gasket packing 2 is placed on the upper part of the cylinder liner 1, the cylinder head 3 is placed on the cylinder liner 1, and the cylinder head 3 is fastened by a cylinder head bolt. And a piston that moves up and down by a crank rod is fitted inside the cylinder liner 1 to form a sealed state.

【0009】そしてシリンダライナ1の上部と、シリン
ダヘッド3の下面との間の内燃機関の燃焼ガスシール構
造は、シリンダヘッド3の側から外嵌円周突起3aを下
方に突出し、シリンダライナ1の側から内嵌円周突起1
bを上方へ突出し、その間にガスケットパッキン2を介
装して、インロー嵌合している。故に円周鍔1cの上面
に構成した円周シール面1dと、外嵌円周突起3aの下
面との間に介装したガスケットパッキン2が、燃焼ガス
を封鎖するのである。
In the combustion gas seal structure of the internal combustion engine between the upper portion of the cylinder liner 1 and the lower surface of the cylinder head 3, the external fitting circumferential projection 3a is projected downward from the side of the cylinder head 3 so that the cylinder liner 1 Inner circumference projection 1 from the side
b is projected upward, and the gasket packing 2 is interposed between them, and the spigot fitting is carried out. Therefore, the gasket packing 2 interposed between the circumferential sealing surface 1d formed on the upper surface of the circumferential collar 1c and the lower surface of the outer fitting circumferential projection 3a blocks the combustion gas.

【0010】硫黄分の少ない燃料を使用する場合や、予
備燃焼室式や、海水間接冷却方式の場合には、燃焼室の
温度が高く、硫酸成分が発生し難いので、内嵌円周突起
1bと外嵌円周突起3aの間に侵入した硫酸ガスが露点
以下となって、円周溝1aの部分に溜まるという危惧は
少ないのである。
When a fuel having a low sulfur content is used, a pre-combustion chamber type, or an indirect seawater cooling system, the temperature of the combustion chamber is high and a sulfuric acid component is less likely to be generated. There is little concern that the sulfuric acid gas that has entered between the outer fitting circumferential projection 3a and the outer fitting circumferential projection 3a will be below the dew point and will accumulate in the circumferential groove 1a.

【0011】しかし、前述の如く、硫黄分の多い燃料を
使用し、直噴式であり、海水直接冷却方式の場合には、
内嵌円周突起1bと外嵌円周突起3aの間に侵入した硫
酸ガスが、低温で露点以下となり、硫酸となって円周溝
1aの部分に長期間滞留するのである。該滞留した硫酸
成分が、徐々にガスケットパッキン2や円周シール面1
dや外嵌円周突起3aの下面の部分を腐食し、該腐食部
分により密閉度が低下し、燃焼ガスが漏れるという不具
合が発生するのである。
However, as described above, in the case of the direct injection type using the fuel with a large amount of sulfur and the direct cooling method of seawater,
The sulfuric acid gas that has entered between the inner fitting circumferential projection 1b and the outer fitting circumferential projection 3a has a dew point or lower at a low temperature, and becomes sulfuric acid and stays in the circumferential groove 1a for a long period of time. The accumulated sulfuric acid component is gradually added to the gasket packing 2 and the circumferential sealing surface 1.
This causes corrosion of the d and the lower surface portion of the external fitting circumferential projection 3a, the corroded portion lowers the sealing degree, and the combustion gas leaks.

【0012】本発明はこのような不具合を、出来るだけ
簡単に解消しようとするものであり、従来の構造をその
まま使用して、ガスシール部の完全化を図らんとするも
のである。即ち、円周溝1aの円周シール面1dの部分
を加工する際において、バイトの逃がし用に出来る円周
溝1aに、液状ガスケット剤5を注入して、この部分の
空間を閉鎖したものである。該円周溝1aとその上方
の、内嵌円周突起1bとガスケットパッキン2と外嵌円
周突起3aにより出来る空間を、液状ガスケット剤5に
より閉鎖することにより、燃焼室の亜硫酸ガスが該空間
に侵入出来なくなり、該部分の亜硫酸ガスが低温により
露点以下となって、硫酸となることが無いのである。
The present invention is intended to solve such a problem as easily as possible, and aims to complete the gas seal portion by using the conventional structure as it is. That is, when processing the portion of the circumferential sealing surface 1d of the circumferential groove 1a, the liquid gasket agent 5 is injected into the circumferential groove 1a which can be used for releasing the bite, and the space at this portion is closed. is there. By closing the space formed by the inner circumferential projection 1b, the gasket packing 2 and the outer circumferential projection 3a above the circumferential groove 1a with the liquid gasket agent 5, sulfur dioxide gas in the combustion chamber The sulfurous acid gas in the portion does not become sulfuric acid due to the dew point below the dew point due to the low temperature.

【0013】図4と図5により請求項2の発明を説明す
る。該構成においては、シリンダヘッド3の下面に外嵌
円周突起3aが構成されていない。故に、シリンダヘッ
ド3の下面が直接にガスケットパッキン2の上面に載置
されており、シリンダライナ1の上面とシリンダヘッド
3との間には間隙が発生すべく構成している。この構成
の場合には、シリンダヘッド3の下面とシリンダライナ
1の上面との間の間隙から亜硫酸ガスが円周溝1aの部
分に侵入しやすいのである。このような場合には、特
に、円周シール面1dとガスケットパッキン2とシリン
ダヘッド3と内嵌円周突起1bの外周にできる空隙に、
液状ガスケット剤が効果を発揮するのである。
The invention of claim 2 will be described with reference to FIGS. 4 and 5. In this structure, the outer fitting circumferential protrusion 3a is not formed on the lower surface of the cylinder head 3. Therefore, the lower surface of the cylinder head 3 is directly placed on the upper surface of the gasket packing 2, and a gap is formed between the upper surface of the cylinder liner 1 and the cylinder head 3. In the case of this configuration, the sulfurous acid gas easily enters the circumferential groove 1a through the gap between the lower surface of the cylinder head 3 and the upper surface of the cylinder liner 1. In such a case, in particular, in the space formed on the outer circumference of the circumferential sealing surface 1d, the gasket packing 2, the cylinder head 3, and the inner fitting circumferential projection 1b,
The liquid gasket agent is effective.

【0014】[0014]

【発明の効果】本発明は以上の如く構成したので、次の
ような効果を奏するのである。即ち、請求項1の如く構
成したので、円周溝1aとガスケットパッキン2と外嵌
円周突起3aと内嵌円周突起1bにより構成される空隙
が、液状ガスケット剤5により閉鎖されるので、この部
分に燃焼室内の亜硫酸ガスが侵入することが不可能とな
るのである。このように亜硫酸ガスが、該部分に侵入し
ないことにより、該部分において低温により亜硫酸ガス
が露点以下となり、硫酸に変化するということが無くな
ったのである。ゆえに、該硫酸成分が、燃焼ガスシール
部を構成する内嵌円周突起の周囲の円周溝の部分に溜ま
り、徐々に周囲のガスケットパッキンの接触面の腐食を
促進し、最終的にはガスケットパッキンや相手部品のシ
ール面の腐食により、ガス漏れが発生するという不具合
が無くなったのである。
Since the present invention is constructed as described above, it has the following effects. That is, since it is configured as in claim 1, the space formed by the circumferential groove 1a, the gasket packing 2, the outer fitting circumferential projection 3a, and the inner fitting circumferential projection 1b is closed by the liquid gasket agent 5. It is impossible for sulfur dioxide gas in the combustion chamber to enter this portion. Thus, since the sulfurous acid gas did not enter the portion, the sulfurous acid gas in the portion did not fall below the dew point due to the low temperature and was not changed to sulfuric acid. Therefore, the sulfuric acid component accumulates in the circumferential groove portion around the inner fitting circumferential protrusion that constitutes the combustion gas sealing portion, gradually promotes corrosion of the contact surface of the surrounding gasket packing, and finally the gasket. The problem of gas leakage due to corrosion of the packing and the sealing surface of the mating component has disappeared.

【0015】請求項2の如く構成したので、シリンダヘ
ッド3の下面に外嵌円周突起3aを構成しないで、平面
とした場合に、シリンダヘッド3の下面とシリンダライ
ナ1の上面との間には、どうしても、間隙が構成され、
この間隙から亜硫酸ガスが円周溝1aの方向に流れ易い
のである。故に該円周溝1aの部分に液状ガスケット剤
5を注入することにより、より効果的にガスケットパッ
キン2の接触面の腐食を防止することが出来るのであ
る。
Since the outer circumferential fitting projection 3a is not formed on the lower surface of the cylinder head 3 and has a flat surface, it is provided between the lower surface of the cylinder head 3 and the upper surface of the cylinder liner 1. By all means, the gap is constructed,
The sulfurous acid gas easily flows from this gap toward the circumferential groove 1a. Therefore, by injecting the liquid gasket agent 5 into the portion of the circumferential groove 1a, it is possible to more effectively prevent corrosion of the contact surface of the gasket packing 2.

【図面の簡単な説明】[Brief description of drawings]

【図1】シリンダライナ1の円周鍔1cの部分の内周に
出来る円周溝1aの部分に液状ガスケット剤5を充填し
ている状態の斜視図。
FIG. 1 is a perspective view showing a state in which a liquid gasket agent 5 is filled in a portion of a circumferential groove 1a formed in an inner circumference of a portion of a circumferential flange 1c of a cylinder liner 1.

【図2】シリンダライナ1とガスケットパッキン2とシ
リンダヘッド3とシリンダブロック4の組立状態に於け
る液状ガスケット剤5の位置を示す側面断面図。
FIG. 2 is a side sectional view showing the position of a liquid gasket agent 5 in an assembled state of a cylinder liner 1, a gasket packing 2, a cylinder head 3 and a cylinder block 4.

【図3】シリンダライナ1とガスケットパッキン2とシ
リンダヘッド3とシリンダブロック4を組み立てる前の
状態を示す側面断面図。
FIG. 3 is a side sectional view showing a state before the cylinder liner 1, the gasket packing 2, the cylinder head 3, and the cylinder block 4 are assembled.

【図4】シリンダヘッド3の下面を平面に構成した構成
の側面断面図。
FIG. 4 is a side sectional view of a configuration in which the lower surface of the cylinder head 3 is formed into a flat surface.

【図5】図4の構成の組立前の状態を示す側面断面図で
ある。
5 is a side sectional view showing a state before assembly of the configuration of FIG.

【符号の説明】[Explanation of symbols]

1 シリンダライナ 1a 円周溝 1b 内嵌円周突起 1c 円周鍔 1d 円周シール面 2 ガスケットパッキン 3 シリンダヘッド 3a 外嵌円周突起 4 シリンダブロック 5 液状ガスケット剤 1 Cylinder Liner 1a Circumferential Groove 1b Internal Fitting Circumferential Protrusion 1c Circumferential Collar 1d Circumferential Sealing Surface 2 Gasket Packing 3 Cylinder Head 3a External Fitting Circumferential Protrusion 4 Cylinder Block 5 Liquid Gasket Agent

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 内燃機関のシリンダ上部であって、シリ
ンダライナ1とガスケットパッキン2とシリンダヘッド
3によりガスシール部を構成し、シリンダライナ1の上
端に内嵌円周突起1bを構成し、シリンダヘッド3の側
の外嵌円周突起3aの内部に、内嵌円周突起1bをイン
ロー嵌合し、該シリンダライナ1の外周に突出した円周
鍔1cの上面を、ガスケットパッキン2を載置する円周
シール面1dに構成し、該円周シール面1dの上にガス
ケットパッキン2を載置し、更に前記外嵌円周突起3a
を載置する構成において、円周シール面1dの内周側
で、内嵌円周突起1bの立ち上がり部に円周溝1aを構
成し、該円周溝1aとガスケットパッキン2の内周と、
外嵌円周突起3aの内周と、内嵌円周突起1bの外周面
が構成する空間に、液状ガスケット剤5を充填したこと
を特徴とする内燃機関の燃焼ガスシール構造。
1. A cylinder seal of an internal combustion engine, wherein a cylinder liner 1, a gasket packing 2, and a cylinder head 3 constitute a gas seal portion, and an inner fitting circumferential protrusion 1b is constituted at an upper end of the cylinder liner 1. The inner fitting circumferential projection 1b is fitted in the inside of the outer fitting circumferential projection 3a on the head 3 side, and the gasket packing 2 is placed on the upper surface of the circumferential flange 1c protruding to the outer circumference of the cylinder liner 1. To form a circumferential sealing surface 1d, and the gasket packing 2 is placed on the circumferential sealing surface 1d.
In the configuration for mounting, a circumferential groove 1a is formed on the inner circumferential side of the circumferential sealing surface 1d at the rising portion of the internally fitted circumferential projection 1b, and the circumferential groove 1a and the inner circumference of the gasket packing 2 are
A combustion gas seal structure for an internal combustion engine, wherein a space formed by an inner circumference of the outer fitting circumferential projection 3a and an outer circumferential surface of the inner fitting circumferential projection 1b is filled with a liquid gasket agent 5.
【請求項2】 内燃機関のシリンダ上部であって、シリ
ンダライナ1とガスケットパッキン2とシリンダヘッド
3によりガスシール部を構成し、シリンダライナ1の上
端に内嵌円周突起1bを構成し、該内嵌円周突起1bの
外周に、円周鍔1cの上面に構成した円周シール面1d
の上に載置したガスケットパッキン2を嵌合し、該ガス
ケットパッキン2の上面にシリンダヘッド3を載置締結
した構成において、円周シール面1dの内周側で、内嵌
円周突起1bの立ち上がり部に円周溝1aを構成し、該
円周溝1aとガスケットパッキン2の内周と、シリンダ
ヘッド3の下面と、内嵌円周突起1bの外周面が構成す
る空間に、液状ガスケット剤5を充填したことを特徴と
する内燃機関の燃焼ガスシール構造。
2. An upper part of a cylinder of an internal combustion engine, wherein a cylinder liner 1, a gasket packing 2 and a cylinder head 3 constitute a gas seal portion, and an inner fitting circumferential projection 1b is constituted at an upper end of the cylinder liner 1. A circumferential sealing surface 1d formed on the upper surface of the circumferential collar 1c on the outer circumference of the inner fitting circumferential projection 1b.
In the configuration in which the gasket packing 2 placed on the above is fitted, and the cylinder head 3 is placed and fastened on the upper surface of the gasket packing 2, the inner fitting circumferential protrusion 1b of the inner fitting circumferential projection 1b is formed on the inner circumferential side of the circumferential sealing surface 1d. A circumferential groove 1a is formed in the rising portion, and a liquid gasket agent is provided in a space formed by the circumferential groove 1a and the inner circumference of the gasket packing 2, the lower surface of the cylinder head 3, and the outer peripheral surface of the inner fitting circumferential projection 1b. 5. A combustion gas seal structure for an internal combustion engine, which is filled with 5.
JP31468692A 1992-11-25 1992-11-25 Combustion gas seal structure of internal combustion engine Expired - Fee Related JP3295467B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31468692A JP3295467B2 (en) 1992-11-25 1992-11-25 Combustion gas seal structure of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31468692A JP3295467B2 (en) 1992-11-25 1992-11-25 Combustion gas seal structure of internal combustion engine

Publications (2)

Publication Number Publication Date
JPH06159517A true JPH06159517A (en) 1994-06-07
JP3295467B2 JP3295467B2 (en) 2002-06-24

Family

ID=18056333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31468692A Expired - Fee Related JP3295467B2 (en) 1992-11-25 1992-11-25 Combustion gas seal structure of internal combustion engine

Country Status (1)

Country Link
JP (1) JP3295467B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004116312A (en) * 2002-09-24 2004-04-15 Mitsubishi Cable Ind Ltd Cylinder liner sealing structure
JP2009243396A (en) * 2008-03-31 2009-10-22 Ihi Corp Sealing part structure and supercharger
JP2010071348A (en) * 2008-09-17 2010-04-02 Aisin Aw Co Ltd Electronic circuit unit
CN103807045A (en) * 2014-03-04 2014-05-21 广西玉柴机器股份有限公司 Cavitation erosion prevention supporting structure for cylinder liner
JP2015055303A (en) * 2013-09-12 2015-03-23 小島プレス工業株式会社 Method of assembling resin cover

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004116312A (en) * 2002-09-24 2004-04-15 Mitsubishi Cable Ind Ltd Cylinder liner sealing structure
JP2009243396A (en) * 2008-03-31 2009-10-22 Ihi Corp Sealing part structure and supercharger
JP2010071348A (en) * 2008-09-17 2010-04-02 Aisin Aw Co Ltd Electronic circuit unit
JP2015055303A (en) * 2013-09-12 2015-03-23 小島プレス工業株式会社 Method of assembling resin cover
CN103807045A (en) * 2014-03-04 2014-05-21 广西玉柴机器股份有限公司 Cavitation erosion prevention supporting structure for cylinder liner

Also Published As

Publication number Publication date
JP3295467B2 (en) 2002-06-24

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