JPH01142547U - - Google Patents
Info
- Publication number
- JPH01142547U JPH01142547U JP3931388U JP3931388U JPH01142547U JP H01142547 U JPH01142547 U JP H01142547U JP 3931388 U JP3931388 U JP 3931388U JP 3931388 U JP3931388 U JP 3931388U JP H01142547 U JPH01142547 U JP H01142547U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- port
- ports
- exhaust
- ceramic member
- 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
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図は本考案のエンジンの吸排気ポート構造
の第１実施例を示す縦断面図、第２図は同上のセ
ラミツク部材の平面図である。第３図は本考案の
エンジンの吸排気ポート構造の第２実施例を示す
縦断面図である。第４図は本考案の第２実施例を
示す横断面図、第５図は同上のセラミツク部材の
平面図である。第６図は本考案の第３実施例を示
す横断面図、第７図は同上のセラミツク部材の平
面図である。
１…シリンダヘツド、２ａ，２ｂ…吸気ポート
、３ａ，３ｂ…排気ポート、４ａ，４ｂ…セラミ
ツク部材、４ａ１，４ｂ１…分離壁部分、８…シ
リンダヘツド、９ａ，９ｂ…排気ポート、１０ａ
，１０ｂ，１０ｃ…セラミツク部材、１１…分離
壁部分、１２…シリンダヘツド、１３ａ，１３ｂ
…排気ポート、１４…セラミツク部材、１５…分
離壁部分。
FIG. 1 is a longitudinal sectional view showing a first embodiment of the intake and exhaust port structure for an engine according to the present invention, and FIG. 2 is a plan view of the same ceramic member. FIG. 3 is a longitudinal sectional view showing a second embodiment of the engine intake and exhaust port structure of the present invention. FIG. 4 is a cross-sectional view showing a second embodiment of the present invention, and FIG. 5 is a plan view of the same ceramic member. FIG. 6 is a cross-sectional view showing a third embodiment of the present invention, and FIG. 7 is a plan view of the same ceramic member. DESCRIPTION OF SYMBOLS 1... Cylinder head, 2a, 2b... Intake port, 3a, 3b... Exhaust port, 4a, 4b... Ceramic member, 4a 1 , 4b 1 ... Separation wall portion, 8... Cylinder head, 9a, 9b... Exhaust port, 10a
, 10b, 10c...ceramic member, 11...separation wall portion, 12...cylinder head, 13a, 13b
...exhaust port, 14...ceramic member, 15...separation wall portion.
Claims (1)
いは排気ポートが、シリンダヘツド内で隣接する
上記複数の吸気ポートあるいは排気ポートを仕切
る分離壁の一端部で合流するように形成されたエ
ンジンの吸排気ポート構造において、上記吸気ポ
ートあるいは排気ポートの内壁をセラミツク部材
で形成するとともに、上記分離壁部分はセラミツ
ク部材を分割して成形するか、あるいは他の部材
により形成したことを特徴とするエンジンの吸排
気ポート構造。 An engine intake/exhaust port formed so that a plurality of intake ports or exhaust ports provided for each cylinder merge at one end of a separation wall that partitions the plurality of adjacent intake ports or exhaust ports within a cylinder head. In the structure, the inner wall of the intake port or the exhaust port is formed of a ceramic member, and the separation wall portion is formed by dividing and molding the ceramic member or by forming it from another member. Port structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3931388U JPH01142547U (en) | 1988-03-24 | 1988-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3931388U JPH01142547U (en) | 1988-03-24 | 1988-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142547U true JPH01142547U (en) | 1989-09-29 |
Family
ID=31265822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3931388U Pending JPH01142547U (en) | 1988-03-24 | 1988-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142547U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146251A (en) * | 1980-03-10 | 1980-11-14 | Nissan Motor Co Ltd | Cylinder head for internal combustion engine |
| JPS60169655A (en) * | 1983-12-22 | 1985-09-03 | ドクトル・インジエニエ−ル・ハ−・ツエ−・エフ・ポルシエ・アクチエンゲゼルシヤフト | Hollow tubular ceramic body for gas guide passage |
-
1988
- 1988-03-24 JP JP3931388U patent/JPH01142547U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146251A (en) * | 1980-03-10 | 1980-11-14 | Nissan Motor Co Ltd | Cylinder head for internal combustion engine |
| JPS60169655A (en) * | 1983-12-22 | 1985-09-03 | ドクトル・インジエニエ−ル・ハ−・ツエ−・エフ・ポルシエ・アクチエンゲゼルシヤフト | Hollow tubular ceramic body for gas guide passage |