JPH035930U

JPH035930U -

Info

Publication number: JPH035930U
Application number: JP6474189U
Authority: JP
Priority date: 1989-06-02
Filing date: 1989-06-02
Publication date: 1991-01-21

Description

[Brief explanation of drawings]

第１〜７図は本考案の第１実施例を示すもので
、第１図は本考案装置を備えたＶ型６気筒内燃機
関の要部縦断面図、第２図はそのシリンダブロツ
クの平面図、第３図は第１図−線に沿う拡大
部分平面図、第４図は、第１図−線に沿う拡
大部分平面図、第５図は、第４図−線に沿う
断面図、第６図は、第５図−線に沿う断面図
、第７図は、第５図−線に沿う断面図である
。Ｃｃ……管長切換チヤンバ、３，３ｒ……気
筒、３５_１〜３５_６……分配管、３８，３８ｒ
……管長切換弁、３９_１〜３９_６……弁口、４１
_１〜４１_６……弁体。 Figures 1 to 7 show a first embodiment of the present invention, in which Figure 1 is a vertical cross-sectional view of the main part of a V-type six-cylinder internal combustion engine equipped with the device of the present invention, and Figure 2 is a plan view of the cylinder block. 3 is an enlarged partial plan view taken along the line of FIG. 1, FIG. 4 is an enlarged partial plan view taken along the line of FIG. 1, and FIG. 5 is a sectional view taken along the line of FIG. FIG. 6 is a sectional view taken along line 5 in FIG. 5, and FIG. 7 is a sectional view taken along line 5 in FIG. Cc...Pipe length switching chamber, 3,3r...Cylinder, 35 ₁ to 35 ₆ ...Distribution pipe, 38,38r
... Pipe length switching valve, 39 ₁ to 39 ₆ ... Valve port, 41
₁ to 41 ₆ ... Valve body.

Claims

[Scope of Claim for Utility Model Registration] Distribution pipes 35 ₁ to 35 ₆ whose downstream ends are individually connected to a plurality of cylinders 3..., 3r... and pipe length switching valves 38, 38 whose opening and closing are controlled according to the operating status of the engine.
In the intake system for a multi-cylinder internal combustion engine, the pipe length switching chamber _Cc is provided with a pipe length switching chamber Cc communicating with intermediate portions of the distribution pipes _{35 1} _to 35 ₆ via r. Valve ports 39 ₁ to 39 ₆ communicating with Cc are formed _, and butterfly-type valve bodies 41 ₁ to 41 ₆ are attached to the valve ports 39 ₁ to 39 ₆ _. At the position where the communication between the pipes 35 ₁ to 35 ₆ and the pipe length switching chamber Cc is cut off, the valve bodies 41 ₁ to 41 ₆ are connected to the distribution pipe 35 .
1. An intake device for a multi-cylinder internal combustion engine, characterized in that the intake device constitutes a part of a side wall of _Nos _{. 1} to 35.