JPS61197215U

JPS61197215U -

Info

Publication number: JPS61197215U
Application number: JP8010885U
Authority: JP
Priority date: 1985-05-30
Filing date: 1985-05-30
Publication date: 1986-12-09

Description

[Brief explanation of drawings]

第１図は本考案の排気マニホールドの第一実施
例を示す斜視図、第２図は第１図のＡ―Ａ断面図
、第３図は第二実施例を示す第２図同様の断面図
、第４図は第三実施例を示す分岐管の部分斜視図
、第５図は排気マニホールドを組込んだエンジン
の排気系を示す略側面図である。１：エンジン、２：排気マニホールド、３：排
気浄化器、４：消音器、５：排気管、６，６ａ：
分岐管、７：取付フランジ、８：排気管接続部、
９：突条。 Fig. 1 is a perspective view showing a first embodiment of the exhaust manifold of the present invention, Fig. 2 is a sectional view taken along line AA in Fig. 1, and Fig. 3 is a sectional view similar to Fig. 2 showing a second embodiment. 4 is a partial perspective view of a branch pipe showing a third embodiment, and FIG. 5 is a schematic side view showing an exhaust system of an engine incorporating an exhaust manifold. 1: Engine, 2: Exhaust manifold, 3: Exhaust purifier, 4: Silencer, 5: Exhaust pipe, 6, 6a:
Branch pipe, 7: Mounting flange, 8: Exhaust pipe connection part,
9: Projection.

Claims

[Scope of utility model registration request]

It has the same number of branch pipes as the number of exhaust discharge ports of the multi-cylinder engine to be installed, and the openings at one end of each branch pipe are arranged at intervals corresponding to the intervals of the exhaust discharge ports, and the other ends of each branch pipe are arranged at intervals corresponding to the intervals of the exhaust discharge ports. In an exhaust manifold which is used as an exhaust pipe connection part for merging and connecting the ends of one exhaust pipe, out of a plurality of branch pipes arranged in the direction of the exhaust outlet of a multi-cylinder engine, An exhaust manifold characterized in that branch pipes located at least in positions where the amount of deformation due to thermal expansion is large are made weak against forces in the direction of arrangement of each branch pipe, and strong against forces in a direction perpendicular to this.