JPH046539U - - Google Patents
Info
- Publication number
- JPH046539U JPH046539U JP4381990U JP4381990U JPH046539U JP H046539 U JPH046539 U JP H046539U JP 4381990 U JP4381990 U JP 4381990U JP 4381990 U JP4381990 U JP 4381990U JP H046539 U JPH046539 U JP H046539U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- valve seat
- combustion engine
- internal combustion
- intake valve
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す断面図、第２
図ａは本考案に係るバルブシートの平面図、第２
図ｂは同じく側断面図、第３図は、主流空気の通
用面積を従来例と比較して図示した説明図、第４
図はエンジン出力を従来例と比較した図、第５図
は従来例を示す断面図、第６図ａは従来のバルブ
シート平面図、第６図ｂは同じく側断面図である
。
１……吸気ポート、１ａ……吸気ポート内壁、
３……吸気弁、４……燃焼室、７……吸気ポート
端面、９……バルブシート、９ａ……バルブシー
ト内面穿設部。
Fig. 1 is a sectional view showing one embodiment of the present invention;
Figure a is a plan view of the valve seat according to the present invention;
Figure b is also a side sectional view, Figure 3 is an explanatory diagram comparing the common area of mainstream air with the conventional example, and Figure 4 is a side sectional view.
5 is a sectional view showing the conventional example, FIG. 6a is a plan view of the conventional valve seat, and FIG. 6b is a side sectional view. 1... Intake port, 1a... Intake port inner wall,
3...Intake valve, 4...Combustion chamber, 7...Intake port end face, 9...Valve seat, 9a...Valve seat inner surface perforation part.
Claims (1)
に圧入した内燃機関の吸気系において、吸気バル
ブシートの外形形状を長円形とするとともに、吸
気ポート端面から吸気バルブシート弁座上端まで
を略直線に形成したことを特徴とする内燃機関の
吸気形。 In the intake system of an internal combustion engine, in which an intake valve seat with a valve seat formed therein is press-fitted into an intake port, the outer shape of the intake valve seat is oval, and the length from the end face of the intake port to the upper end of the intake valve seat is formed into a substantially straight line. This is an intake type internal combustion engine that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4381990U JPH046539U (en) | 1990-04-24 | 1990-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4381990U JPH046539U (en) | 1990-04-24 | 1990-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046539U true JPH046539U (en) | 1992-01-21 |
Family
ID=31556561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4381990U Pending JPH046539U (en) | 1990-04-24 | 1990-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005028819A1 (en) * | 2003-09-22 | 2005-03-31 | Toyota Jidosha Kabushiki Kaisha | Method of manufacturing suction port of internal combustion engine and suction port of internal combustion engine |
-
1990
- 1990-04-24 JP JP4381990U patent/JPH046539U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005028819A1 (en) * | 2003-09-22 | 2005-03-31 | Toyota Jidosha Kabushiki Kaisha | Method of manufacturing suction port of internal combustion engine and suction port of internal combustion engine |