JPS6114596Y2 - - Google Patents
Info
- Publication number
- JPS6114596Y2 JPS6114596Y2 JP11675179U JP11675179U JPS6114596Y2 JP S6114596 Y2 JPS6114596 Y2 JP S6114596Y2 JP 11675179 U JP11675179 U JP 11675179U JP 11675179 U JP11675179 U JP 11675179U JP S6114596 Y2 JPS6114596 Y2 JP S6114596Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder head
- cylinder
- heat
- resistant material
- liner
- 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
- 239000003779 heat-resistant material Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案はエンジンのシリンダヘツド取付構造に
関するものである。[Detailed Description of the Invention] The present invention relates to a cylinder head mounting structure for an engine.
一般に、シリンダヘツド下面におけるシリンダ
ライナと対向する部分は常時高温のガスにさらさ
れており、十分冷却を行う必要がある。 Generally, the portion of the lower surface of the cylinder head that faces the cylinder liner is constantly exposed to high-temperature gas and must be sufficiently cooled.
このために、冷却損失が大きくなり、水ポン
プ、ラジエータ等の冷却機器の大型化を招いてい
ると共に、シリンダヘツド下部は冷却により温度
勾配が大きくなりクラツクの発生、しいてはエン
ジンの破損等の事故を起してしまう。 As a result, cooling loss increases, leading to larger cooling equipment such as water pumps and radiators.At the same time, the temperature gradient in the lower part of the cylinder head increases due to cooling, which can lead to cracks and engine damage. causing an accident.
本考案は上記の事情に鑑みなされたものであ
り、その目的はシリンダブロツクとシリンダヘツ
ド間の熱移流を低減してエンジンの熱量がシリン
ダヘツドに伝わり難くしてシリンダヘツドの温度
を低くできるようにしたエンジンのシリンダヘツ
ド取付構造を提供することである。 The present invention was developed in view of the above circumstances, and its purpose is to reduce heat advection between the cylinder block and cylinder head, making it difficult for the heat of the engine to be transferred to the cylinder head, and thereby lowering the temperature of the cylinder head. An object of the present invention is to provide a cylinder head mounting structure for an engine.
以下図面を参照して本考案の実施例を説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
シリンダブロツク１のボア２にはシリンダライ
ナ３が嵌合取付けてあり、シリンダブロツク１の
上面１ａにはシリンダガスケツト４を介してシリ
ンダヘツド５が圧接取付けてある。 A cylinder liner 3 is fitted into the bore 2 of the cylinder block 1, and a cylinder head 5 is press-fitted onto the upper surface 1a of the cylinder block 1 via a cylinder gasket 4.
シリンダヘツド下面５ａにおけるシリンダライ
ナ３と対向する部分には環状の段部６が形成さ
れ、該段部６には断熱材より成る複数の薄板シー
ト７と耐熱材より成るプレート８とが積層されて
いる。 An annular step 6 is formed in a portion of the lower surface 5a of the cylinder head that faces the cylinder liner 3, and a plurality of thin sheets 7 made of a heat insulating material and a plate 8 made of a heat resistant material are laminated on the step 6. There is.
９はバルブシート、１０は排気ポート、１１は
バルブガイド、１２，１３は冷却水室である。 9 is a valve seat, 10 is an exhaust port, 11 is a valve guide, and 12 and 13 are cooling water chambers.
前記、耐熱材としてはステンレス系統の材料以
上のもの（例えばインコネル等）も含み、セラミ
ツク系統のものでも良い。 The above-mentioned heat-resistant material includes materials beyond stainless steel (for example, Inconel, etc.), and may also include ceramic-based materials.
薄板シート７としては無加工（通常市販されて
いる程度のもの）のステンレスステイールおよび
同等以上に粗い表面荒さを持つたものである。 The thin sheet 7 is made of unprocessed stainless steel (commonly available on the market) and has a surface roughness equal to or higher than that of stainless steel.
なお、表面荒さの程度により断熱度が異なる
が、故意に表面荒さを粗くしなくとも複数枚積重
ねることで空気層ができ十分断熱効果を発揮す
る。 Note that the degree of insulation varies depending on the degree of surface roughness, but even if the surface roughness is not intentionally made rough, by stacking multiple sheets, an air layer is created and a sufficient insulation effect is achieved.
しかして、複数の薄板シート７とプレート８と
によつてシリンダライナ３内部の高温ガスによる
熱がシリンダヘツド５の下面に伝熱することが低
減されるから、シリンダヘツド５（鋳物部分）の
温度が下り、シリンダヘツド５にクラツク等が発
生することがなく安全性が向上する。 Since the plurality of thin sheets 7 and plates 8 reduce the heat generated by the high-temperature gas inside the cylinder liner 3 from being transferred to the lower surface of the cylinder head 5, the temperature of the cylinder head 5 (cast part) is reduced. The cylinder head 5 is prevented from cracking and safety is improved.
シリンダヘツド下面５ａよりのシリンダヘツド
５の冷却水室１２内の冷却水への熱の流入量が低
下しエンジンの冷却水損失が低減できる。 The amount of heat flowing into the cooling water in the cooling water chamber 12 of the cylinder head 5 from the lower surface 5a of the cylinder head is reduced, and the loss of cooling water to the engine can be reduced.
薄板シート７部分で断熱するため下面の耐熱材
料よりなるプレート８はほぼ均等の温度になり熱
応力は小さくなり耐久性が向上する。 Since the thin plate sheet 7 is insulated, the lower plate 8 made of a heat-resistant material has a substantially uniform temperature, reducing thermal stress and improving durability.
耐熱材料をセラミツクとした場合には、セラミ
ツクは非常にもろいが、薄板シート７がクツシヨ
ンとなりセラミツクには過大な応力が作用しない
からセラミツクが破損することがない。 When ceramic is used as the heat-resistant material, although ceramic is very brittle, the thin sheet 7 acts as a cushion and no excessive stress is applied to the ceramic, so that the ceramic will not be damaged.
本考案の以上の様になり、シリンダライナ３と
対向した部分に耐熱材より成るプレート８と複数
の薄板シート７とを積層して取付けたから、シリ
ンダライナ３内の高温がシリンダヘツド５に熱移
流することを低減でき、エンジンのシリンダライ
ナ３内の熱量がシリンダヘツドに伝わり難くな
り、シリンダヘツド５の温度を低くできてシリン
ダヘツド５にクラツク等が発生することがなく安
全性が向上すると共に、シリンダヘツド下面５ａ
よりシリンダヘツド５の冷却室内に冷却水への熱
の流入量が低下しエンジンの冷却水損失を低減で
きる。 With the present invention as described above, the plate 8 made of a heat-resistant material and a plurality of thin sheets 7 are laminated and attached to the part facing the cylinder liner 3, so that the high temperature inside the cylinder liner 3 is transferred to the cylinder head 5. This reduces the amount of heat in the cylinder liner 3 of the engine being transmitted to the cylinder head, lowers the temperature of the cylinder head 5, prevents cracks from occurring in the cylinder head 5, and improves safety. Cylinder head lower surface 5a
As a result, the amount of heat flowing into the cooling water in the cooling chamber of the cylinder head 5 is reduced, and the loss of cooling water in the engine can be reduced.
また、薄板シート７部分で断熱するため下面の
耐熱材料よりなるプレート８はほぼ均等の温度に
なり熱応力は小さくなり耐久性が向上すると共
に、耐熱材料をセラミツクとした場合には、セラ
ミツクは非常にもろいが、薄板シート７がシヨツ
クとなりセラミツクには過大な応力が作用しない
からセラミツクが破損することがない。 In addition, since the thin sheet 7 is insulated, the temperature of the plate 8 made of a heat-resistant material on the lower surface is almost uniform, reducing thermal stress and improving durability. Although it is brittle, the thin sheet 7 serves as a shock and no excessive stress is applied to the ceramic, so the ceramic will not be damaged.
第１図は本考案の一実施例の断面図、第２図は
その部拡大図である。
１はシリンダブロツク、３はシリンダライナ、
５はシリンダヘツド、７は薄板シート、８は耐熱
材より成るプレート。
FIG. 1 is a cross-sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged view of that part. 1 is the cylinder block, 3 is the cylinder liner,
5 is a cylinder head, 7 is a thin sheet, and 8 is a plate made of heat-resistant material.
Claims (1)
の上面１ａにシリンダガスケツト４を介してシリ
ンダヘツド５を取付け、該シリンダヘツド５の下
面５ａにおけるシリンダライナ３と対向した部分
には、耐熱材より成るプレート８と複数の薄板シ
ート７とをプレート８がシリンダライナ３と接し
薄板シート７がシリンダヘツド５の下面５ａに接
するように積層して取付けたことを特徴とするエ
ンジンのシリンダヘツド取付構造。 Cylinder block 1 with cylinder liner 3
A cylinder head 5 is attached to the upper surface 1a via a cylinder gasket 4, and a plate 8 made of a heat-resistant material and a plurality of thin plate sheets 7 are mounted on the lower surface 5a of the cylinder head 5 at a portion facing the cylinder liner 3. 8 is in contact with the cylinder liner 3, and the thin plate sheet 7 is in contact with the lower surface 5a of the cylinder head 5 in a laminated manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11675179U JPS6114596Y2 (en) | 1979-08-27 | 1979-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11675179U JPS6114596Y2 (en) | 1979-08-27 | 1979-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5635533U JPS5635533U (en) | 1981-04-06 |
| JPS6114596Y2 true JPS6114596Y2 (en) | 1986-05-07 |
Family
ID=29348954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11675179U Expired JPS6114596Y2 (en) | 1979-08-27 | 1979-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114596Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870988U (en) * | 1981-11-06 | 1983-05-13 | 株式会社シマノ | Power transmission device for bicycle control lever actuator |
-
1979
- 1979-08-27 JP JP11675179U patent/JPS6114596Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5635533U (en) | 1981-04-06 |
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