JPS608421U

JPS608421U - Variable intake manifold for internal combustion engines

Info

Publication number: JPS608421U
Application number: JP10115483U
Authority: JP
Inventors: 利明武田; 孝幸井上
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 1983-06-30
Filing date: 1983-06-30
Publication date: 1985-01-21

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

[Brief explanation of drawings]

第１〜４図は本考案の第１実施例としての内燃機関の吸
気通路可変型マニホルドを示すもので、第１図はその構
造を模式的に示す平面図、第２図はその制御系を示す模
式図、第３，４図はいずれもその充填効率特性を説明す
るためのグラフであり、第５〜７図はそれぞれ本考案の
第２〜４実施例としての内燃機関の吸気通路可変型マ主
ホルトの構造を模式的に示す平面図である。１・・・・・・シリンダ、２・・・・・・枝部分、３．
　４．　５゜６．７・・・・・・弁、８・・・・・・バ
イパス管、９・・・・・・プライマリ側穴、１０・・・
・・・セカンダリ側穴、１１・・・・・・吸気ポート、
１２・・・・・・排気ボート、１３・・・・・・シリン
ダヘッド、１４・・・・・・シリンダブロック、１５゜
１６、　１７．　１８．　１９・・・・・・圧力応動装
置、２０゜２１・・・・・・ソレノイドバルブ、２２・
・・・・・排気マニホルド、２３・・・・・・スロット
ルポジションセンサ、２４・・・・・・車速センサ、２
５・・・・：・コントロールユニット、２６．２７・・
・・・・通路、２Ｂ、　　２９．　３０゜３１．３２・
・・・・・接続管、３３・・・・・・キャブレタ、３４
・・・・・・トランスミッション、３７．　３Ｂ、　　
３９゜４０・・・・・・弁。Figures 1 to 4 show a variable intake passage manifold for an internal combustion engine as a first embodiment of the present invention. Figure 1 is a plan view schematically showing its structure, and Figure 2 shows its control system. The schematic diagrams shown in Figures 3 and 4 are graphs for explaining the charging efficiency characteristics, and Figures 5 to 7 are graphs of variable intake passage types for internal combustion engines as second to fourth embodiments of the present invention, respectively. FIG. 3 is a plan view schematically showing the structure of the main hole. 1... Cylinder, 2... Branch portion, 3.
4. 5゜6.7...Valve, 8...Bypass pipe, 9...Primary side hole, 10...
...Secondary side hole, 11...Intake port,
12...Exhaust boat, 13...Cylinder head, 14...Cylinder block, 15°16, 17. 18. 19... Pressure response device, 20° 21... Solenoid valve, 22.
...Exhaust manifold, 23...Throttle position sensor, 24...Vehicle speed sensor, 2
5...: Control unit, 26.27...
...Aisle, 2B, 29. 30°31.32・
... Connection pipe, 33 ... Carburetor, 34
...transmission, 37. 3B,
39°40... Valve.

Claims

[Scope of utility model registration request]

An internal combustion engine is provided with an intake manifold in which intake passages leading to each cylinder are formed to have approximately the same length, and a bypass pipe is arranged in parallel in an intake pipe section leading from a gathering part of the intake manifold to a branch part of the intake manifold, In order to change the length or area of each intake passage leading to each cylinder of the intake manifold depending on the operating condition of the internal combustion engine, a valve is provided that can close at least one of the intake pipe portion and the bypass pipe. A variable intake passage manifold for an internal combustion engine, which is characterized by: