JPH0214427U - - Google Patents
Info
- Publication number
- JPH0214427U JPH0214427U JP9296788U JP9296788U JPH0214427U JP H0214427 U JPH0214427 U JP H0214427U JP 9296788 U JP9296788 U JP 9296788U JP 9296788 U JP9296788 U JP 9296788U JP H0214427 U JPH0214427 U JP H0214427U
- Authority
- JP
- Japan
- Prior art keywords
- section
- outlet
- inlet
- inlet portion
- outlet portions
- 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 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を示
す平面図、第１図Ｂは第１図Ａの吸気ポートの入
口部の正面図、第２図は本考案の一実施例を示す
断面図、第３図は中高速運転時における吸気ポー
トの入口部の断面積と吸入空気量との関係を示す
グラフ、第４図は中高速運転時における吸気ポー
トの入口部の形状と吸入空気量との関係を示すグ
ラフである。
１１……吸気ポート、１４……入口部、１５，
１６，１７……出口部。
FIG. 1A is a plan view showing an intake port according to an embodiment of the present invention, FIG. 1B is a front view of the inlet portion of the intake port of FIG. 1A, and FIG. 2 is a plan view showing an embodiment of the invention. 3 is a graph showing the relationship between the cross-sectional area of the inlet of the intake port and the amount of intake air during medium-to-high speed operation, and FIG. 4 is a graph showing the shape of the inlet of the intake port and the intake air during medium-to-high speed operation. It is a graph showing the relationship with quantity. 11...Intake port, 14...Inlet part, 15,
16, 17...exit section.
Claims (1)
口部とを有し、これら３つの出口部が相互にほぼ
同一半径の円形断面を有するとともに、上記入口
部が長円形断面を有し、上記出口部は入口部の長
円形の長軸の方向にほぼ沿つて配置され、上記入
口部は、長径ａおよび短径ｂが次の式を満足する
範囲内で絞られることを特徴とする内燃機関の吸
気ポート構造。 ａ≧ｘ−２ｙ ｂ≧２ｙ ただし、ｘは両側に位置する２つの出口部の中
心間距離、ｙは出口部の半径である。[Claims for Utility Model Registration] It has one inlet portion and three outlet portions communicating with the inlet portion, and these three outlet portions have circular cross sections with approximately the same radius, and the inlet portion The outlet section has an oval cross section, and the outlet section is disposed approximately along the long axis of the oval section of the inlet section, and the inlet section is narrowed within a range where the major axis a and the minor axis b satisfy the following formula. An intake port structure for an internal combustion engine characterized by: a≧x−2y b≧2y where x is the distance between the centers of the two outlet portions located on both sides, and y is the radius of the outlet portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9296788U JPH077547Y2 (en) | 1988-07-15 | 1988-07-15 | Intake port structure of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9296788U JPH077547Y2 (en) | 1988-07-15 | 1988-07-15 | Intake port structure of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214427U true JPH0214427U (en) | 1990-01-30 |
| JPH077547Y2 JPH077547Y2 (en) | 1995-02-22 |
Family
ID=31317415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9296788U Expired - Lifetime JPH077547Y2 (en) | 1988-07-15 | 1988-07-15 | Intake port structure of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077547Y2 (en) |
-
1988
- 1988-07-15 JP JP9296788U patent/JPH077547Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077547Y2 (en) | 1995-02-22 |