JPS6238430U

JPS6238430U -

Info

Publication number: JPS6238430U
Application number: JP12882785U
Authority: JP
Priority date: 1985-08-26
Filing date: 1985-08-26
Publication date: 1987-03-07

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例にかかる吸気マニホ
ルドの一部破断斜視図、第２図はそれが取付けら
れたエンジンの平面に沿つて断面にした断面図、
第３図はその側断面図、第４図は本実施例にかか
るスワール制御装置の概略構成図である。また、
第５図Ａは従来例にかかる吸気装置の横断平面図
、第５図Ｂは第５図ＡのＢ―Ｂ断面図、第６図Ａ
，Ｂは他の従来例にかかる吸気装置におけるスワ
ール成分の説明図、第７図Ａはその概略斜視図、
第７図Ｂはその噴霧状態の説明図、第７図Ｃはそ
の吸気状態の説明図である。図面中、１９は主ポート、２０は副ポート、２
１は吸気マニホルド、２１ａ入口部、２１ｂは集
合部、２１ｃは枝管部、２２は主通路、２３は副
通路、２３ａは入口部、２３ｂは出口部、２５は
弁体である。 FIG. 1 is a partially cutaway perspective view of an intake manifold according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the plane of the engine to which it is installed.
FIG. 3 is a side sectional view thereof, and FIG. 4 is a schematic configuration diagram of the swirl control device according to this embodiment. Also,
FIG. 5A is a cross-sectional plan view of the intake device according to the conventional example, FIG. 5B is a sectional view taken along line BB in FIG. 5A, and FIG. 6A is
, B is an explanatory diagram of a swirl component in an intake device according to another conventional example, and FIG. 7A is a schematic perspective view thereof.
FIG. 7B is an explanatory diagram of the spray state, and FIG. 7C is an explanatory diagram of the intake state. In the drawing, 19 is the main port, 20 is the sub port, 2
1 is an intake manifold, 21a is an inlet, 21b is a gathering part, 21c is a branch pipe, 22 is a main passage, 23 is a sub-passage, 23a is an inlet, 23b is an outlet, and 25 is a valve body.

Claims

[Scope of utility model registration request]

In an engine having a variable swirl port consisting of a main port connected to the upstream side of the intake valve and a sub-port connected at a certain angle near the terminal end of the main port and independent from the main port, branching from the convergence part. A main passage communicating the main port and the collecting part and a sub passage communicating the sub port and the collecting part are provided in the branch pipe part, and the cross-sectional area of the inlet passage on the collecting part side of the sub passage is A. An intake manifold for an engine with a variable swirl port, characterized in that the ratio of the cross-sectional area B of the outlet passage on the sub-port side is 1<AB<2.