JPH0475146U - - Google Patents
Info
- Publication number
- JPH0475146U JPH0475146U JP11901390U JP11901390U JPH0475146U JP H0475146 U JPH0475146 U JP H0475146U JP 11901390 U JP11901390 U JP 11901390U JP 11901390 U JP11901390 U JP 11901390U JP H0475146 U JPH0475146 U JP H0475146U
- Authority
- JP
- Japan
- Prior art keywords
- air
- cylinder head
- cooling fins
- wall
- cooling
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Description
第１図は、本考案の第１実施例に係る縦型オー
バヘツドバルブエンジンの一部横断面図、第２図
は第１図に於る矢視図、第３図は第２図に於る
矢視図、第４図はシリンダヘツド部の吸気孔と
排気孔の縦断面図、第５図は第２図に於る矢視
図、第６図は本考案の１実施例に係る製造型構造
要部断面図、第７図は、従来のオーバヘツドバル
ブ型エンジンの一部縦断面図、第８図は、第７図
に於る視一部横断面図、第９図は、第７図に於
る視一部断面図である。
５８……吸気孔、５５……プツシユロツド、１
７０……シリンダ取付壁、１４５……プツシユロ
ツド室側壁、Ｈ……風穴、１５０ａ，１５０ｂ，
１５０ｃ……冷却風ガイド、１４８……シリンダ
ヘツド冷却フイン。
FIG. 1 is a partial cross-sectional view of a vertical overhead valve engine according to a first embodiment of the present invention, FIG. 2 is a view taken in the direction of the arrows in FIG. 1, and FIG. FIG. 4 is a vertical sectional view of the intake and exhaust holes of the cylinder head, FIG. 5 is a view along the arrows in FIG. 2, and FIG. 6 is a manufacturing diagram according to an embodiment of the present invention. 7 is a partial vertical sectional view of a conventional overhead valve type engine, FIG. 8 is a partial cross-sectional view of FIG. 7, and FIG. FIG. 7 is a partially sectional view of FIG. 7; 58...Intake hole, 55...Push rod, 1
70... Cylinder mounting wall, 145... Push rod chamber side wall, H... Air hole, 150a, 150b,
150c...Cooling air guide, 148...Cylinder head cooling fin.
Claims (1)
孔が両プツシユロツドの間に開口し吸気孔の下壁
、シリンダ取付壁の上面及びプツシユロツド側壁
に囲繞されて形成されクランク軸の軸方向に流さ
れる冷却風を通す風穴Ｈを設けたシリンダヘツド
において、前記冷却風穴Ｈの風の上流側及び下流
側のシリンダヘツドの冷却ひれの間に前記冷却ひ
れと垂直方向に薄い壁を全冷却ひれの先端に沿つ
て設けたことを特徴とする空冷オーバヘツドバル
ブエンジンのシリンダヘツド。 An air-cooled overhead valve engine in which the intake hole opens between both push rods and is surrounded by the lower wall of the intake hole, the upper surface of the cylinder mounting wall, and the push rod side wall, allowing cooling air to flow in the axial direction of the crankshaft. In a cylinder head provided with air holes H, a thin wall is provided in a direction perpendicular to the cooling fins between the cooling fins of the cylinder head on the upstream and downstream sides of the cooling air hole H along the tips of all cooling fins. A cylinder head for an air-cooled overhead valve engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11901390U JPH0475146U (en) | 1990-11-14 | 1990-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11901390U JPH0475146U (en) | 1990-11-14 | 1990-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475146U true JPH0475146U (en) | 1992-06-30 |
Family
ID=31866991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11901390U Pending JPH0475146U (en) | 1990-11-14 | 1990-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074874A (en) * | 2009-09-30 | 2011-04-14 | Hitachi Koki Co Ltd | Engine and engine tool provided with the same |
-
1990
- 1990-11-14 JP JP11901390U patent/JPH0475146U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074874A (en) * | 2009-09-30 | 2011-04-14 | Hitachi Koki Co Ltd | Engine and engine tool provided with the same |
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