JPH0214426U - - Google Patents
Info
- Publication number
- JPH0214426U JPH0214426U JP9243988U JP9243988U JPH0214426U JP H0214426 U JPH0214426 U JP H0214426U JP 9243988 U JP9243988 U JP 9243988U JP 9243988 U JP9243988 U JP 9243988U JP H0214426 U JPH0214426 U JP H0214426U
- Authority
- JP
- Japan
- Prior art keywords
- intake port
- intake
- valve
- wall
- outlet openings
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Characterised By The Charging Evacuation (AREA)
Description
第１図Ａは本考案の一実施例の吸気ポートの内
部を示す斜視図、第１図Ｂは従来の吸気ポートの
内部を示す斜視図、第２図は本考案の一実施例を
適用したシリンダヘツドを示す断面図、第３図は
吸気ポート形状を概略的に示す平面図である。
１０……吸気ポート、１１……入口開口部、１
２，１３，１４……出口開口部、１５，１６，１
７……ステムガイド、１８，１９……壁、２２…
…シリンダ、３１……矩形壁面。
FIG. 1A is a perspective view showing the inside of an intake port according to an embodiment of the present invention, FIG. 1B is a perspective view showing the inside of a conventional intake port, and FIG. 2 is a perspective view showing the inside of an intake port according to an embodiment of the present invention. FIG. 3 is a sectional view showing the cylinder head, and FIG. 3 is a plan view schematically showing the shape of the intake port. 10...Intake port, 11...Inlet opening, 1
2, 13, 14...exit opening, 15, 16, 1
7... Stem guide, 18, 19... Wall, 22...
...Cylinder, 31...Rectangular wall surface.
Claims (1)
れ、吸気ポートは各吸気弁により開閉される３つ
の出口開口部と１つの入口開口部を有し、上記吸
気ポート内壁には上記吸気弁のバルブステムを支
持するステムガイドが突出する内燃機関の吸気ポ
ート構造において、上記吸気ポート内壁であつて
中央の出口開口部と両側の出口開口部との間の壁
面形状を、上記入口開口部から見たときの中央の
出口開口部内壁面上のバルブステム投影面端部か
ら延びて、両側の出口開口部周縁部に接するよう
に形成したことを特徴とする内燃機関の吸気ポー
ト構造。 Three intake valves are provided for one cylinder, and the intake port has three outlet openings and one inlet opening that are opened and closed by each intake valve, and the intake port has a valve on the inner wall of the intake port. In an intake port structure of an internal combustion engine in which a stem guide that supports a stem protrudes, the shape of the wall surface of the inner wall of the intake port between the central outlet opening and the outlet openings on both sides, as viewed from the inlet opening. What is claimed is: 1. An intake port structure for an internal combustion engine, wherein the intake port structure extends from an end of a valve stem projection surface on an inner wall surface of a central outlet opening, and is formed so as to touch peripheral edges of the outlet openings on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9243988U JPH07668Y2 (en) | 1988-07-14 | 1988-07-14 | Intake port structure of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9243988U JPH07668Y2 (en) | 1988-07-14 | 1988-07-14 | Intake port structure of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214426U true JPH0214426U (en) | 1990-01-30 |
| JPH07668Y2 JPH07668Y2 (en) | 1995-01-11 |
Family
ID=31316875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9243988U Expired - Lifetime JPH07668Y2 (en) | 1988-07-14 | 1988-07-14 | Intake port structure of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07668Y2 (en) |
-
1988
- 1988-07-14 JP JP9243988U patent/JPH07668Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07668Y2 (en) | 1995-01-11 |
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