JPH0113793Y2 - - Google Patents
Info
- Publication number
- JPH0113793Y2 JPH0113793Y2 JP1982193151U JP19315182U JPH0113793Y2 JP H0113793 Y2 JPH0113793 Y2 JP H0113793Y2 JP 1982193151 U JP1982193151 U JP 1982193151U JP 19315182 U JP19315182 U JP 19315182U JP H0113793 Y2 JPH0113793 Y2 JP H0113793Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust port
- cylinder head
- exhaust
- head body
- port 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
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案は排気ポートを改良したエンジンのシリ
ンダヘツド装置に関するものである。[Detailed Description of the Invention] The present invention relates to an engine cylinder head device with an improved exhaust port.
従来のシリンダヘツドの排気ポート２では第１
図に示すように断熱部分３がシリンダヘツド本体
１の下面にまで延びておらず、また排気ポート２
間の部分４はシリンダヘツド本体１と同じ材質の
鋳物であつたために高温になつて破損していた。 In the conventional cylinder head exhaust port 2, the first
As shown in the figure, the heat insulating portion 3 does not extend to the bottom surface of the cylinder head body 1, and the exhaust port 2
The part 4 between them was made of the same casting material as the cylinder head body 1, so it became hot and broke.
本考案は上記の事情に鑑みなされたものであつ
て、その目的とするところは、排気ポート間の部
分を耐熱鋼で排気ポートライナにより作成してこ
の部分の高温による破損をなくし、また、排気ポ
ートの冷却損失のうち10〜15％減少させ得て冷却
系の小型化等エンジンの効率向上に寄与できしか
も別体の補強材を排気ポート７間の部分に装着す
るものに比べて加工工数が少なくなり製作費が安
くなるエンジンのシリンダヘツド装置を提供する
ことにある。 The present invention was developed in view of the above circumstances, and its purpose is to eliminate the damage caused by high temperatures in this part by making the part between the exhaust ports with an exhaust port liner made of heat-resistant steel, and to It can reduce the cooling loss of the ports by 10 to 15% and contribute to improving the efficiency of the engine by making the cooling system more compact.Moreover, it requires fewer machining steps than installing a separate reinforcing material between the exhaust ports 7. To provide a cylinder head device for an engine whose manufacturing cost is reduced.
以下、本考案を第２図以下を参照して説明す
る。 Hereinafter, the present invention will be explained with reference to FIG. 2 and subsequent figures.
図面中５はシリンダヘツド本体であり、６，６
は吸気ポート、７，７は排気ポートである。排気
ポート７，７は耐熱鋼で作成された排気ポートラ
イナ８のまわりにセラミツクス、セラミツクスフ
アムパー等の断熱材９を付着固定させてシリンダ
ヘツド本体５中に鋳込んで作成してある。排気ポ
ートライナ８はシリンダヘツド本体５の下面まで
延びていてこの排気ポートライナ８にバルブシー
ト嵌入部１０が形成してあり、また両排気ポート
７，７間の部分１１も排気ポートライナ８で作成
してある。 In the drawing, 5 is the cylinder head body, and 6,6
is an intake port, and 7, 7 is an exhaust port. The exhaust ports 7, 7 are made by adhering and fixing a heat insulating material 9 such as ceramics or ceramic foam around an exhaust port liner 8 made of heat-resistant steel and casting it into the cylinder head body 5. The exhaust port liner 8 extends to the lower surface of the cylinder head main body 5, and a valve seat fitting part 10 is formed in this exhaust port liner 8, and the part 11 between the two exhaust ports 7 is also made of the exhaust port liner 8. It has been done.
また、排気ポートライナ８の外部にポート固定
用突起１２が形成してある。 Further, a port fixing protrusion 12 is formed on the outside of the exhaust port liner 8.
なお、第４図に示すようにバルブシート嵌入部
１０をなくして排気ポートライナ８を直接にバル
ブシートとして利用してもよい。図面中１３はバ
ルブガイド部である。 In addition, as shown in FIG. 4, the valve seat fitting part 10 may be eliminated and the exhaust port liner 8 may be used directly as a valve seat. 13 in the drawing is a valve guide section.
本考案は以上詳述したように、排気ポート７
を、耐熱鋼で作成された排気ポートライナ８のま
わりに断熱材９を付着固定させてシリンダヘツド
本体５中に鋳込んで形成し、排気ポートライナ８
をシリンダヘツド本体５の下面に露出させると共
に排気ポート７間の部分１１を排気ポートライナ
８で作成したことを特徴とするエンジンのシリン
ダヘツド装置である。 As detailed above, the present invention has exhaust port 7.
is formed by adhering and fixing a heat insulating material 9 around an exhaust port liner 8 made of heat-resistant steel and casting it into the cylinder head body 5.
This cylinder head device for an engine is characterized in that the cylinder head body 5 is exposed on the lower surface of the cylinder head body 5, and the portion 11 between the exhaust ports 7 is made of an exhaust port liner 8.
したがつて、排気ポート７間の部分１１が排気
ポート７と同じ耐熱鋼で排気ポートライナ８によ
り作成してあるためにこの部分１１の高温による
破損がなく、また、排気ポート７の冷却損失のう
ち10〜15％減少できて冷却系の小型化等エンジン
の効率向上に寄与することができるし、特に排気
ポート７間の部分１１を排気ポートライナ８で作
成したので、別体の補強材を排気ポート７間の部
分１１に装着するものに比べて加工工数が少なく
なり製作費が安くなる。 Therefore, since the portion 11 between the exhaust ports 7 is made of the same heat-resistant steel as the exhaust port 7 and the exhaust port liner 8, this portion 11 will not be damaged due to high temperatures, and the cooling loss of the exhaust port 7 will be reduced. This can be reduced by 10 to 15%, which can contribute to improving engine efficiency by downsizing the cooling system, etc. In particular, since the part 11 between the exhaust ports 7 is made of the exhaust port liner 8, it is not necessary to use a separate reinforcing material. Compared to a device that is attached to the portion 11 between the exhaust ports 7, the number of processing steps is reduced and the manufacturing cost is lower.
第１図は従来のシリンダヘツド装置の排気ポー
ト部分の縦断面図、第２図は本考案一実施例の平
面図、第３図は第２図−線に沿う断面図、第
４図は排気ポートのシート部の説明図である。
５はシリンダヘツド本体、７は排気ポート、８
は排気ポートライナ、９は断熱材。
Fig. 1 is a longitudinal sectional view of the exhaust port portion of a conventional cylinder head device, Fig. 2 is a plan view of an embodiment of the present invention, Fig. 3 is a sectional view taken along the line shown in Fig. 2, and Fig. 4 is an exhaust It is an explanatory view of a seat part of a port. 5 is the cylinder head body, 7 is the exhaust port, 8
is the exhaust port liner, and 9 is the insulation material.
Claims (1)
トライナ８のまわりに断熱材９を付着固定させて
シリンダヘツド本体５中に鋳込んで形成し、排気
ポートライナ８をシリンダヘツド本体５の下面に
露出させると共に排気ポート７間の部分１１を排
気ポートライナ８で作成したことを特徴とするエ
ンジンのシリンダヘツド装置。 The exhaust port 7 is formed by adhering and fixing a heat insulating material 9 around an exhaust port liner 8 made of heat-resistant steel and casting it into the cylinder head body 5. The exhaust port liner 8 is formed on the lower surface of the cylinder head body 5. A cylinder head device for an engine characterized in that a portion 11 between the exhaust ports 7 is exposed and made of an exhaust port liner 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19315182U JPS5997252U (en) | 1982-12-22 | 1982-12-22 | Engine cylinder head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19315182U JPS5997252U (en) | 1982-12-22 | 1982-12-22 | Engine cylinder head device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5997252U JPS5997252U (en) | 1984-07-02 |
| JPH0113793Y2 true JPH0113793Y2 (en) | 1989-04-24 |
Family
ID=30415491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19315182U Granted JPS5997252U (en) | 1982-12-22 | 1982-12-22 | Engine cylinder head device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997252U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5281411A (en) * | 1975-12-27 | 1977-07-07 | Honda Motor Co Ltd | Exhaust port liner for engine |
| JPS5433512A (en) * | 1977-08-22 | 1979-03-12 | Tokyo Shibaura Electric Co | Method of making ceramic sintered body |
-
1982
- 1982-12-22 JP JP19315182U patent/JPS5997252U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5281411A (en) * | 1975-12-27 | 1977-07-07 | Honda Motor Co Ltd | Exhaust port liner for engine |
| JPS5433512A (en) * | 1977-08-22 | 1979-03-12 | Tokyo Shibaura Electric Co | Method of making ceramic sintered body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5997252U (en) | 1984-07-02 |
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