JPS58142328U - internal combustion engine intake port - Google Patents
internal combustion engine intake portInfo
- Publication number
- JPS58142328U JPS58142328U JP3843082U JP3843082U JPS58142328U JP S58142328 U JPS58142328 U JP S58142328U JP 3843082 U JP3843082 U JP 3843082U JP 3843082 U JP3843082 U JP 3843082U JP S58142328 U JPS58142328 U JP S58142328U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- internal combustion
- intake port
- valve
- passage
- 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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図Ａ、 Ｂは従来例の横断平面及び縦断正面図、第
２図はスワール比と空気流量係数との一般的な関係を示
す特性図、第３図Ａ、 Ｂはこの考案の実施例の横断平
面図及び縦断正面図、第３図Ｃは第３図ＢのＡ−Ａ矢視
図、第４図は凸曲面の半径Ｒとスワール比及び空気流量
係数との関係を示す特性図である。
１・・・・・・シリンダヘッド、２・・・・・・吸気ポ
ート、３・・・・・・吸気路、４・・・・・・環状路、
６・・・・・・バルブガイド、７・・・・・・環状路外
側壁面、８・・・・・・シート面、９・・・・・・スロ
ート部、Ｄ・・・・・・弁傘部（シート面）の直径、Ｒ
・・・・・・半径、１０・・・・・・壁面凸曲面）。Figures 1A and B are cross-sectional and longitudinal front views of the conventional example, Figure 2 is a characteristic diagram showing the general relationship between swirl ratio and air flow coefficient, and Figures 3A and B are examples of this invention. 3C is a cross-sectional plan view and a vertical front view of , FIG. 3C is a view taken along arrow A-A in FIG. 3B, and FIG. be. 1... Cylinder head, 2... Intake port, 3... Intake path, 4... Annular path,
6... Valve guide, 7... Annular road outer wall surface, 8... Seat surface, 9... Throat portion, D... Valve Diameter of umbrella part (seat surface), R
...Radius, 10...Convex wall surface).
Claims (1)
曲させた吸気路と、これに接続する弁軸回りの環状路と
により形成したヘリカル型吸気ポートにおいて、上記吸
気路から環状路へと移行する部分の環状路外側壁面と吸
気弁が着座するシート面上方のスロート部とを結ぶ壁面
を、吸気弁の弁傘部直径の０．２５〜０．５倍の半径を
もつ凸曲面に形成したことを特徴とする内燃機関の吸気
ポート。In a helical-type intake port formed in the cylinder head by an intake passage curved in the middle and an annular passage around the valve shaft connected to this, the part where the intake passage transitions from the intake passage to the annular passage. The wall surface connecting the outer wall surface of the annular road and the throat portion above the seat surface on which the intake valve is seated is formed into a convex curved surface having a radius of 0.25 to 0.5 times the diameter of the valve head portion of the intake valve. Characteristic intake ports of internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3843082U JPS58142328U (en) | 1982-03-18 | 1982-03-18 | internal combustion engine intake port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3843082U JPS58142328U (en) | 1982-03-18 | 1982-03-18 | internal combustion engine intake port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58142328U true JPS58142328U (en) | 1983-09-26 |
Family
ID=30049771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3843082U Pending JPS58142328U (en) | 1982-03-18 | 1982-03-18 | internal combustion engine intake port |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58142328U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212845A (en) * | 1975-07-19 | 1977-01-31 | Fujitsu Ltd | Mode transformation device |
| GB1569303A (en) * | 1975-12-24 | 1980-06-11 | Fiat Spa | Induction conduits of internal combustion engines |
-
1982
- 1982-03-18 JP JP3843082U patent/JPS58142328U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212845A (en) * | 1975-07-19 | 1977-01-31 | Fujitsu Ltd | Mode transformation device |
| GB1569303A (en) * | 1975-12-24 | 1980-06-11 | Fiat Spa | Induction conduits of internal combustion engines |
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